A dewatering device for processing phosphogypsum

Abstract

The utility model discloses a kind of dehydration equipment for phosphogypsum processing, including box, the top surface both sides of the box are equipped with shaft sleeve, and shaft sleeve is equipped with connecting rod in penetration, and the inside fixed mounting of box on connecting rod is equipped with helical blade.The utility model, box bottom motor drive rotating lever rotates, drives stirring assembly to agitate material, ensure that heat evenly, the rotation of rotating lever synchronous driving turntable rotation, make material form circular motion in box, combine the turning effect of stirring assembly, further improve the heating efficiency and drying effect of material, in addition, scraper synchronous movement is driven when turntable rotates, scraper runs along inner wall of box, effectively remove adhered material, avoid residual accumulation to influence heat transfer efficiency, reduce cleaning difficulty simultaneously, not only improve the uniformity and efficiency of dehydration process, but also maintain equipment long-term stable operation by automatic scraping function, with higher practicality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of phosphogypsum processing technology, and in particular to a dehydration device for phosphogypsum processing. Background Technology

[0002] Phosphogypsum is a solid waste generated during the production of phosphate fertilizers and phosphoric acid. Besides its main component, calcium sulfate, phosphogypsum also contains small amounts of phosphoric acid, silicon, magnesium, iron, aluminum, and organic impurities. Because phosphogypsum contains a certain amount of water, it needs to be dehydrated during processing, which requires the use of phosphogypsum dehydration equipment.

[0003] The existing Chinese patent, CN217817923U, discloses a phosphogypsum dehydration device. However, this existing technical solution has the following drawbacks: although the aforementioned solution utilizes a temperature control switch, heating wire, fan, heat absorption pipe, heat supply pipe, main pipe, and branch pipes in coordination to allow the heating wire to heat the inner wall of the dehydration tank and evaporate moisture from the deep phosphogypsum, the phosphogypsum at the top is also evaporated by hot air sprayed from several branch pipes. This simultaneous heating of the phosphogypsum's interior and top... Heat can quickly dehydrate phosphogypsum. Through the action of the motor and the auger, the motor drives the auger to rotate, causing the phosphogypsum at the bottom to move upward under the action of the auger, while the phosphogypsum at the top will automatically fill downward, making it evenly tumbled. However, the above technical solution does not have a scraping mechanism, which makes the phosphogypsum easy to stick to the inner wall of the device during the dehydration process. This not only affects the material recovery rate, but also reduces the heat transfer efficiency in the long run. Furthermore, the hardening of the adhered material will increase the difficulty of cleaning, thus affecting the continuous and stable operation of the equipment and the processing effect of subsequent batches. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a dehydration device for phosphogypsum processing, which has the advantages of easily scraping and cleaning the material adhering to the inner wall of the device, preventing material residue on the inner wall of the device, and ensuring its normal subsequent use, thereby solving the problems in the background technology mentioned above.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a dehydration device for phosphogypsum processing, comprising a box body, bushings installed on both sides of the top surface of the box body, and a connecting rod passing through the bushings; a spiral blade fixedly installed on the connecting rod inside the box body; a motor fixedly installed at the middle position of the bottom surface of the box body, and a rotating rod fixedly connected to the output end of the motor through the bottom and top surfaces of the box body; a turntable fixedly installed on the rotating rod inside the box body, and scrapers fixedly connected to both sides of the top surface of the turntable; a stirring blade fixedly connected to the rotating rod above the turntable; a first gear fixedly connected to the top of the rotating rod above the box body, and the first gear meshing with a second gear fixedly installed at the top of the connecting rod; mounting grooves opened on both sides of the inner wall of the box body, and heating plates fixedly installed in the mounting grooves; and a feed inlet fixedly connected to one side of the top surface of the box body.

[0008] Preferably, an exhaust pipe is fixedly connected to one side of the top surface of the housing, and a filter screen is fixedly installed in the exhaust pipe.

[0009] Preferably, two filters are installed, and the two filters are evenly distributed on both sides of the inside of the exhaust pipe.

[0010] Preferably, a protective frame is provided on the top surface of the housing outside the first gear and the second gear, and the protective frame is fixedly connected to the housing. A movable plate is installed on the front surface of the protective frame, and the movable plate is fixedly connected to the protective frame by screws.

[0011] Preferably, the turntable and the housing are circular structures, the diameter of the turntable is smaller than the diameter of the housing, and the turntable matches the housing.

[0012] Preferably, a discharge door is installed on the front surface of the box, and the discharge door is hinged to the box via a hinge.

[0013] Preferably, the bottom surface of the box is fixedly welded with legs on both sides, and there are multiple legs, which are evenly distributed in pairs on both sides of the bottom surface of the box.

[0014] Preferably, two scrapers are installed, and the two scrapers are evenly distributed on both sides of the top surface of the turntable, and the scrapers are matched with the box body.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a dehydration device for phosphogypsum processing, which has the following beneficial effects:

[0017] (1) In this utility model, after the material enters the box through the feed inlet, the heating plates in the grooves installed on both sides of the inner wall of the box are activated to heat and dehydrate the phosphogypsum. At the same time, the motor at the bottom of the box drives the rotating rod to rotate, which drives the stirring component to stir the material to ensure uniform heating. The rotation of the rotating rod drives the turntable to rotate synchronously, so that the material forms a circulating motion in the box. Combined with the tumbling action of the stirring component, the heating efficiency and drying effect of the material are further improved. In addition, when the turntable rotates, it drives the scraper to move synchronously. The scraper runs along the inner wall of the box to effectively remove the adhering material, avoid the accumulation of residues that affect the heat transfer efficiency, and reduce the cleaning difficulty. It not only improves the uniformity and efficiency of the dehydration process, but also maintains the long-term stable operation of the equipment through the automatic scraping function, ensuring the consistency of the processing effect of subsequent batches. It has high practicality and reliability.

[0018] (2) In this utility model, the rotating rod drives the first gear on it to rotate during rotation. The first gear meshes with the second gear at the top of the connecting rod, driving the connecting rod and the spiral blades to rotate synchronously. Together with the stirring blades on the rotating rod, a compound stirring mode is formed, which makes the material in the box fully tumbled in both radial and axial directions, improving the uniformity of material heating and thus improving drying efficiency. At the same time, the filter screen installed in the exhaust pipe can effectively intercept dust and impurities in the gas, preventing harmful substances from being directly emitted into the atmosphere. This not only ensures the exhaust quality but also reduces pollution to the surrounding environment, enhancing the environmental performance of the equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a dehydration device for phosphogypsum processing proposed in this utility model;

[0021] Figure 2 This is an enlarged view (A) of a dehydration device for phosphogypsum processing proposed in this utility model;

[0022] Figure 3 This is a front view of a dehydration device for phosphogypsum processing proposed in this utility model;

[0023] Figure 4 This is a schematic diagram of the rotary table structure of a dehydration device for phosphogypsum processing proposed in this utility model.

[0024] Legend:

[0025] 1. Housing; 2. Feed inlet; 3. Motor; 4. Support legs; 5. Rotating rod; 6. First gear; 7. Second gear; 8. Protective frame; 9. Connecting rod; 10. Stirring blade; 11. Spiral blade; 12. Scraper; 13. Heating plate; 14. Turntable; 15. Exhaust pipe; 16. Filter screen; 17. Discharge gate; 18. Movable plate. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0028] Please see Figure 1-4A dehydration device for phosphogypsum processing includes a housing 1. Bushings are installed on both sides of the top surface of the housing 1, and a connecting rod 9 passes through the bushings. Spiral blades 11 are fixedly installed on the connecting rods 9 inside the housing 1. A motor 3 is fixedly installed at the middle of the bottom surface of the housing 1, and a rotating rod 5 is fixedly connected to the output end of the motor 3 through the bottom and top surfaces of the housing 1. A turntable 14 is fixedly installed on the rotating rod 5 inside the housing 1, and scrapers 12 are fixedly connected to both sides of the top surface of the turntable 14. A stirring blade 10 is fixedly connected to the rotating rod 5 above the turntable 14. A first gear 6 is fixedly connected to the top of the rotating rod 5 above the housing 1, and the first gear 6 meshes with a second gear 7 fixedly installed at the top of the connecting rod 9. Mounting grooves are opened on both sides of the inner wall of the housing 1, and heating plates 13 are fixedly installed in the mounting grooves. A feed inlet is fixedly connected to one side of the top surface of the housing 1. 2. The material is added into the box 1 through the feed inlet 2. The heating plates 13 installed in the grooves on both sides of the inner wall of the box 1 are turned on to heat and dehydrate the phosphogypsum material in the box 1. The motor 3 on the bottom surface of the box 1 is started, and the motor 3 drives the rotating rod 5 to rotate, which makes the stirring component rotate, thus stirring the material in the box 1 and allowing it to be fully heated in the box 1. The rotating rod 5 drives the turntable 14 to rotate at the same time, which makes the material rotate in the box 1. With the use of the stirring component, the material can be evenly turned over, so that it can be fully heated and the drying effect can be improved. The rotating disc 14 drives the scraper 12 to rotate at the same time. The scraper 12 can scrape off the material adhering to the inner wall of the box 1 to prevent the material from remaining on the inner wall of the box 1 and facilitate the cleaning of the material on the inner wall of the box 1.

[0029] Please see Figure 1 and Figure 3 An exhaust pipe 15 is fixedly connected to one side of the top surface of the housing 1, and a filter screen 16 is fixedly installed in the exhaust pipe 15. The filter screen 16 installed in the exhaust pipe 15 can effectively intercept dust and impurities in the gas, preventing harmful substances from being directly emitted into the atmosphere. This not only ensures the exhaust quality but also reduces pollution to the surrounding environment and enhances the environmental performance of the equipment.

[0030] Please see Figure 1 There are two filters 16 installed, and the two filters 16 are evenly distributed on both sides of the inside of the exhaust pipe 15. The use of two filters 16 can improve the filtration effect of impurities in the gas.

[0031] Please see Figure 1 and Figure 3The top surface of the housing 1 is provided with a protective frame 8 outside the first gear 6 and the second gear 7, and the protective frame 8 is fixedly connected to the housing 1. A movable plate 18 is installed on the front surface of the protective frame 8, and the movable plate 18 is fixedly connected to the protective frame 8 by screws. The first gear 6 and the second gear 7 can be protected by the use of the protective frame 8. The components in the protective frame 8 can be maintained and repaired by loosening the screws and removing the movable plate 18.

[0032] Please see Figure 1 and Figure 4 The turntable 14 and the box 1 are circular structures. The diameter of the turntable 14 is smaller than the diameter of the box 1. The turntable 14 is matched with the box 1 so that the turntable 14 can rotate in the box 1, thereby allowing the material to rotate in the box 1. With the use of the stirring component, the material can be fully heated in the box 1, which is beneficial to improving its drying efficiency.

[0033] Please see Figure 3 The front surface of the box 1 is equipped with a discharge door 17, and the discharge door 17 is hinged to the box 1 via a hinge. By opening the discharge door 17, the dried material in the box 1 can be taken out.

[0034] Please see Figure 1 and Figure 3 Support legs 4 are fixedly welded to both sides of the bottom surface of the box 1. There are multiple support legs 4, and the multiple support legs 4 are evenly distributed in pairs on both sides of the bottom surface of the box 1. The support legs 4 support the box 1 and maintain the stability of the box 1 during operation.

[0035] Please see Figure 1 and Figure 4 Two scrapers 12 are installed, and the two scrapers 12 are evenly distributed on both sides of the top surface of the turntable 14. The scrapers 12 are matched with the box body 1. The turntable 14 rotates while driving the scrapers 12 to rotate. By using the scrapers 12, the material adhering to the inner wall of the box body 1 can be scraped off, preventing the material from remaining on the inner wall of the box body 1, and making it convenient to clean the material on the inner wall of the box body 1.

[0036] Please see Figure 1 A sealing sleeve is installed between the bottom and top surfaces of the rotating rod 5 and the housing 1 to improve the sealing between the rotating rod 5 and the housing 1 and reduce leakage.

[0037] The control switch control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. Since it is only used and not modified, the control method and circuit connection will not be described in detail.

[0038] Working principle:

[0039] In use, the material is added into the chamber 1 through the feed inlet 2. The heating plates 13 in the mounting slots on both sides of the inner wall of the chamber 1 are then turned on to heat and dehydrate the phosphogypsum material in the chamber 1. The motor 3 on the bottom surface of the chamber 1 is activated, which drives the rotating rod 5 to rotate, thus rotating the stirring component and agitating the material in the chamber 1. This ensures the material is fully heated within the chamber 1. Simultaneously, the rotating rod 5 drives the turntable 14 to rotate, allowing the material to rotate within the chamber 1. Combined with the use of the stirring component, this ensures even heating. Turning the material over ensures it is fully heated, improving its drying effect. The rotating disc 14 drives the scraper 12 to rotate simultaneously, scraping away material adhering to the inner wall of the chamber 1, preventing material residue and facilitating cleaning. The filter 16 inside the exhaust pipe 15 effectively intercepts dust and impurities in the gas, preventing harmful substances from being directly emitted into the atmosphere. This ensures exhaust quality, reduces pollution to the surrounding environment, and enhances the equipment's environmental performance.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dehydration device for processing phosphogypsum, comprising a housing (1), characterized in that, The top surface of the housing (1) is fitted with bushings on both sides, and a connecting rod (9) is inserted through the bushings. A spiral blade (11) is fixedly installed on the connecting rod (9) inside the housing (1). A motor (3) is fixedly installed at the middle position of the bottom surface of the housing (1), and a rotating rod (5) is fixedly connected to the output end of the motor (3) through the bottom and top surfaces of the housing (1). A turntable (14) is fixedly installed on the rotating rod (5) inside the housing (1), and the top surface of the turntable (14) is... Scrapers (12) are fixedly connected to both sides of the surface. A stirring blade (10) is fixedly connected to the rotating rod (5) above the turntable (14). A first gear (6) is fixedly connected to the top of the rotating rod (5) above the box (1). The first gear (6) meshes with a second gear (7) fixedly installed at the top of the connecting rod (9). The inner wall of the box (1) has mounting grooves on both sides, and a heating plate (13) is fixedly installed in the mounting grooves. A feed inlet (2) is fixedly connected to one side of the top surface of the box (1).

2. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, An exhaust pipe (15) is fixedly connected to one side of the top surface of the box (1), and a filter screen (16) is fixedly installed in the exhaust pipe (15).

3. The dehydration equipment for phosphogypsum processing according to claim 2, characterized in that, Two filters (16) are installed, and the two filters (16) are evenly distributed on both sides of the inside of the exhaust pipe (15).

4. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, The top surface of the housing (1) is provided with a protective frame (8) located outside the first gear (6) and the second gear (7), and the protective frame (8) is fixedly connected to the housing (1). A movable plate (18) is installed on the front surface of the protective frame (8), and the movable plate (18) is fixedly connected to the protective frame (8) by screws.

5. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, The turntable (14) and the box (1) are circular structures. The diameter of the turntable (14) is smaller than the diameter of the box (1). The turntable (14) matches the box (1).

6. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, The front surface of the box (1) is equipped with a discharge door (17), and the discharge door (17) is hinged to the box (1) via a hinge.

7. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, The bottom surface of the box (1) is fixedly welded with legs (4) on both sides. There are multiple legs (4), and the multiple legs (4) are evenly distributed on both sides of the bottom surface of the box (1).

8. The dehydration equipment for phosphogypsum processing according to claim 1, characterized in that, There are two scrapers (12), and the two scrapers (12) are evenly distributed on both sides of the top surface of the turntable (14). The scrapers (12) are matched with the box body (1).

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