Stirring device applied to ardealite mixing

Abstract

The utility model relates to the technical field of chemical equipment, and discloses a stirring device applied to ardealite mixing, which comprises a stirring box, a box cover arranged at the top of the stirring box, a rotary planet carrier arranged in the box cover, and a driving mechanism arranged at the top of the box cover and used for driving the planet carrier to rotate, a first stirring shaft and a second stirring shaft with autorotation functions are arranged on the planet carrier in a manner of extending towards the interior of the stirring box, the axes of the first stirring shaft and the second stirring shaft are respectively parallel to the axis of the stirring box, and the lower part of the first stirring shaft is connected with a plurality of layers of first fan blade assemblies arranged in the height direction of the stirring box; a plurality of first crushing units are arranged on the first fan blade assembly, a plurality of layers of second fan blade assemblies arranged in the height direction of the stirring box are connected to the lower part of the second stirring shaft, and a plurality of second crushing units are arranged on the second fan blade assemblies.

Description

Technical Field

[0001] This utility model relates to the technical field of chemical equipment, specifically to a mixing device applied to phosphogypsum mixing. Background Technology

[0002] Phospholipid gypsum bricks are a new type of lightweight wall material with advantages such as environmental protection and energy saving, high strength, earthquake resistance, heat insulation, sound insulation, fire resistance, moisture resistance, and convenient use and installation. They are especially suitable as interior wall partition materials for newly built high-rise buildings and large-span buildings in urban and rural areas.

[0003] Phosphogypsum bricks, a novel lightweight wall material, are typically produced using mechanized casting molding (wet process). In this process, phosphogypsum powder, dihydrate phosphogypsum powder, a hydration regulator, and water are mixed in a specific ratio and subjected to a hydration reaction using a mixing device, ultimately forming the brick material. However, during production, the phosphogypsum powder undergoes a hydration reaction upon contact with water, leading to increased viscosity and reduced fluidity. The hydrated phosphogypsum powder is prone to agglomeration and clumping during mixing. These clumps may accumulate at the outlet of the mixing tank, causing blockages and hindering continuous operation. Utility Model Content

[0004] The present invention aims to provide a stirring device for mixing phosphogypsum, which can break up the clumps of phosphogypsum powder after hydration, thereby preventing clogging.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] 1) A mixing device for mixing phosphogypsum, comprising a mixing tank, a tank cover on top of the mixing tank, a rotating planetary carrier inside the tank cover, a drive mechanism on top of the tank cover for driving the planetary carrier to rotate, a first mixing shaft and a second mixing shaft with a self-rotating function extending into the mixing tank from the planetary carrier, the axes of the first mixing shaft and the second mixing shaft being parallel to the axis of the mixing tank, the lower part of the first mixing shaft being connected to several layers of first fan blade assemblies arranged along the height direction of the mixing tank, the first fan blade assemblies being provided with several first crushing units, the lower part of the second mixing shaft being connected to several layers of second fan blade assemblies arranged along the height direction of the mixing tank, the second fan blade assemblies being provided with several second crushing units.

[0007] This invention drives the planetary carrier to rotate via a drive mechanism. When the planetary carrier rotates, it drives the first and second stirring shafts in the mixing box to revolve synchronously around the center point of the mixing box (the mixing box in this invention uses an existing planetary mixer, and the structure of the planetary mixer and the connection method of each part are existing technologies, which will not be described in detail here), to perform coarse mixing of phosphogypsum powder, dihydrate phosphogypsum powder, hydration regulator and water.

[0008] Meanwhile, due to the characteristics of the planetary frame, it can drive the first and second stirring shafts to rotate at high speed, thereby enhancing the mixing of phosphogypsum powder and dihydrate phosphogypsum powder in a localized area, improving local mixing efficiency, and thus enhancing the overall mixing effect. As the first and second stirring shafts revolve and rotate, the first and second fan blade assemblies on them will also rotate. The multi-layered arrangement of the first and second fan blade assemblies can cover different height areas of the mixing chamber, ensuring uniform mixing of phosphogypsum powder and dihydrate phosphogypsum powder in the vertical direction.

[0009] In addition, the first crushing unit and the second crushing unit provided on the first fan blade assembly and the second fan blade assembly will rotate along with the first fan blade assembly and the second fan blade assembly. During the rotation, the first crushing unit and the second crushing unit will directly contact and crush the lumps of hydrated phosphogypsum powder, thereby preventing the lumps of hydrated phosphogypsum powder from accumulating at the outlet of the mixing tank and thus preventing the occurrence of blockage.

[0010] Through the synergistic effect of revolution and rotation, as well as the arrangement of multi-layer fan blade assembly and crushing unit, this utility model achieves efficient stirring and uniform mixing of phosphogypsum powder and dihydrate phosphogypsum powder, as well as fine crushing of lumps after phosphogypsum powder hydration, ensuring the smooth progress of continuous operation.

[0011] According to the mixing device applied to phosphogypsum mixture as described in 1), wherein:

[0012] The first fan blade assembly includes a first rotating sleeve sleeved on a first stirring shaft, and first stirring blades extending outward from both sides of the first rotating sleeve. The central axis of the first stirring blades is perpendicular to the central axis of the first rotating sleeve, and the first crushing unit is disposed on the surface of the first stirring blades.

[0013] The second fan blade assembly includes a second rotating sleeve sleeved on a second stirring shaft. Second stirring blades extend outward from both sides of the second rotating sleeve. The central axis of the second stirring blades is perpendicular to the central axis of the second rotating sleeve. The second crushing unit is disposed on the surface of the second stirring blades.

[0014] In this invention, the first fan blade assembly includes a first rotating sleeve, which is detachably connected to the first stirring shaft via bolts and nuts. The number of layers in the first fan blade assembly can be adjusted in real time by disassembling the first rotating sleeve, based on the stirring amounts of phosphogypsum powder and dihydrate phosphogypsum powder.

[0015] When the first stirring shaft rotates, it drives the first rotating sleeve to rotate, which in turn drives the first stirring blades on both sides of the first rotating sleeve to rotate. During the rotation of the first stirring blades, the phosphogypsum powder and dihydrate phosphogypsum powder at local heights can be stirred. The use of multiple layers of first stirring blades on the first rotating sleeve can stir the amount of phosphogypsum powder and dihydrate phosphogypsum powder deposited in local locations in the mixing tank, preventing the phosphogypsum powder and dihydrate phosphogypsum powder from depositing at the bottom of the mixing tank.

[0016] The first crushing unit is mounted on the first stirring blade. The rotation of the first stirring blade drives the first crushing unit to rotate. During the rotation, the first crushing unit directly contacts and crushes the hydrated phosphogypsum powder clumps, thereby preventing the hydrated phosphogypsum powder clumps from accumulating at the outlet of the mixing tank and thus preventing blockage.

[0017] Similarly, the second rotating sleeve is detachably connected to the second rotating shaft via bolts and nuts. The number of layers in the second fan blade assembly can be adjusted in real time by disassembling the second rotating sleeve, depending on the mixing volume of the phosphogypsum powder and dihydrate phosphogypsum powder.

[0018] When the second stirring shaft rotates, it drives the second rotating sleeve to rotate, which in turn drives the second stirring blades on both sides of the second rotating sleeve to rotate. During the rotation of the second stirring blades, the phosphogypsum powder and dihydrate phosphogypsum powder at local heights can be stirred. The use of multiple layers of second stirring blades on the second rotating sleeve can stir the amount of phosphogypsum powder and dihydrate phosphogypsum powder deposited in local locations in the mixing tank, preventing the phosphogypsum powder and dihydrate phosphogypsum powder from depositing at the bottom of the mixing tank.

[0019] The second crushing unit is installed on the second stirring blade. The rotation of the second stirring blade drives the second crushing unit to rotate. During the rotation, the second crushing unit directly contacts and crushes the lumps of hydrated phosphogypsum powder, thereby preventing the lumps of hydrated phosphogypsum powder from accumulating at the outlet of the mixing tank and thus preventing blockage.

[0020] Through the synergistic action of the first and second blade assemblies, phosphogypsum powder and dihydrate phosphogypsum powder can be simultaneously stirred within localized areas of the mixing chamber, while also breaking up any agglomerates formed after phosphogypsum powder hydration. This dual action not only promotes the mixing and flow of phosphogypsum powder and dihydrate phosphogypsum powder but also significantly enhances the stirring effect and improves stirring efficiency. Furthermore, the agglomerates formed after phosphogypsum powder hydration can be rapidly broken up within the mixing chamber, preventing the accumulation of agglomerates at the mixing chamber outlet and thus preventing blockages.

[0021] According to the mixing device applied to phosphogypsum mixture as described in 2), wherein:

[0022] The first crushing unit includes a first crushing cone in the shape of a cone, and the second crushing unit includes a second crushing cone in the shape of a cone. One end of the first crushing cone and the second crushing cone are both base ends, and the other end of the first crushing cone and the second crushing cone are both tips. The base end of the first crushing cone is fixedly connected to a first stirring blade, and the tip of the first crushing cone faces the outside of the first stirring blade. The base end of the second crushing cone is fixedly connected to a second stirring blade, and the tip of the second crushing cone faces the outside of the second stirring blade.

[0023] In this invention, the base end of the first crushing cone is wider and is fixedly connected to the first stirring blade. When the first stirring blade rotates, it drives the first crushing cone to rotate as well. The tip of the first crushing cone faces the outer side of the first stirring blade, allowing it to directly contact and penetrate the surface of the hydrated phosphogypsum powder agglomerates during rotation, thereby crushing them. This prevents the hydrated phosphogypsum powder agglomerates from accumulating at the outlet of the mixing tank, thus preventing blockage.

[0024] Similarly, the base end of the second crushing cone is wider and is fixedly connected to the second stirring blade. When the second stirring blade rotates, it will drive the second crushing cone to rotate as well. The tip of the second crushing cone faces the outside of the second stirring blade, so that it can directly contact and penetrate the surface of the hydrated phosphogypsum powder agglomerates during rotation, thereby crushing it.

[0025] By working together with the first and second crushing cones, the lumps of hydrated phosphogypsum powder can be crushed simultaneously in local areas of the mixing tank. This increases the speed of crushing the lumps and prevents them from accumulating at the outlet of the mixing tank, thus preventing blockage.

[0026] According to the mixing device applied to phosphogypsum mixture as described in 1), wherein:

[0027] The first stirring shaft and the second stirring shaft are respectively provided with a first wall scraping assembly and a second wall scraping assembly. The first wall scraping assembly includes a first inclined rod that is inclined. The end of the first inclined rod is fixedly connected to the side of the first stirring shaft. The other end of the first inclined rod extends toward the inner wall of the mixing tank, and a first wall scraping plate is fixedly connected to the extended end of the first inclined rod.

[0028] The second wall scraping assembly includes a second inclined rod that is inclined, one end of which is fixedly connected to the side of the second stirring shaft, the other end of which extends toward the inner wall of the mixing tank, and a second wall scraping plate is fixedly connected to the extended end of the second inclined rod.

[0029] In this invention, a first inclined rod is fixedly disposed on the side of a first stirring shaft. A first scraper plate is fixedly connected to the end of the first inclined rod extending toward the inner wall of the mixing tank, and there is a 3mm space gap between the end face of the first scraper plate and the inner wall of the mixing tank. A second inclined rod is fixedly disposed on the side of a second stirring shaft. A second scraper plate is fixedly connected to the end of the second inclined rod extending toward the inner wall of the mixing tank, and there is a 3mm space gap between the end face of the second scraper plate and the inner wall of the mixing tank.

[0030] When the first stirring shaft revolves with the planetary frame, because there is a space between the end face of the first scraper and the inner wall of the mixing tank, the end face of the first scraper will not directly contact the inner wall of the mixing tank. Therefore, this space can ensure that the first scraper can scrape off the clumps of hydrated phosphogypsum powder on the inner wall of the mixing tank, and also avoid scratching the surface of the inner wall of the mixing tank.

[0031] When the second stirring shaft revolves with the planetary frame, the space between the end face of the second scraper and the inner wall of the mixing tank prevents the end face of the second scraper from directly contacting the inner wall of the mixing tank. Therefore, this space can ensure that the second scraper can remove the clumps of phosphogypsum powder after hydration from the inner wall of the mixing tank, and also avoid scratching the surface of the inner wall of the mixing tank.

[0032] The first and second scraper plates work together to scrape away clumps of hydrated phosphogypsum powder from localized areas of the mixing tank's inner wall, quickly removing all clumps of hydrated phosphogypsum powder adhering to the inner wall. This prevents the clumps of hydrated phosphogypsum powder from adhering to and accumulating on the inner wall of the mixing tank, avoiding blockages and ensuring continuous operation.

[0033] According to the mixing device applied to phosphogypsum mixture as described in 1), wherein:

[0034] The drive mechanism includes a servo motor, which is mounted on the top of the housing cover and is fixedly connected to the planetary carrier through the housing cover.

[0035] In this invention, the servo motor is mounted on the top of the housing cover for easy installation and maintenance. The output shaft of the servo motor passes through the housing cover and is fixedly connected to the planetary carrier (this invention uses an existing planetary mixer; the structure of the planetary mixer and the connection method of each part are existing technologies and will not be described in detail here), enabling the servo motor to drive the planetary carrier to rotate, thereby realizing the revolution and rotation of the first and second stirring shafts.

[0036] Compared with the prior art, this utility model also has the following technical effects:

[0037] This invention employs an MPC500-3000 planetary mixer, with improvements made to the planetary mixing components. By incorporating multiple layers of first and second mixing blades, it enables flexible and efficient mixing of varying amounts of phosphogypsum powder and dihydrate phosphogypsum powder. Compared to existing technologies, the first and second crushing cones in this invention efficiently break up clumps formed after phosphogypsum powder hydration, preventing clumps from accumulating at the output port and ensuring smooth continuous operation. Furthermore, the first and second scraper plates quickly remove all clumps of phosphogypsum powder adhering to the inner wall of the mixing tank, further improving overall mixing efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the mixing device of this utility model applied to phosphogypsum mixing. Detailed Implementation

[0039] The following detailed description illustrates the specific implementation method:

[0040] The reference numerals in the accompanying drawings include: 1. Mixing tank; 2. Tank cover; 3. Planetary carrier; 4. First mixing shaft; 5. Second mixing shaft; 6. First rotating sleeve; 7. First mixing blade; 8. Second rotating sleeve; 9. Second mixing blade; 10. First crushing cone; 11. Second crushing cone; 12. First tilting rod; 13. First scraper; 14. Second tilting rod; 15. Second scraper; 16. Servo motor.

[0041] See the example. Figure 1 As shown, the mixing device applied to phosphogypsum mixing in this embodiment includes a mixing tank 1. The top of the mixing tank 1 is provided with a tank cover 2. A rotating planetary carrier 3 is provided inside the tank cover 2. The top of the tank cover 2 is provided with a drive mechanism for driving the planetary carrier 3 to rotate. The planetary carrier 3 extends toward the mixing tank 1 and is provided with a first mixing shaft 4 and a second mixing shaft 5 with a self-rotating function. The axes of the first mixing shaft 4 and the second mixing shaft 5 are parallel to the axis of the mixing tank 1, respectively. The lower part of the first mixing shaft 4 is connected to several layers of first fan blade assemblies arranged along the height direction of the mixing tank 1. Several first crushing units are provided on the first fan blade assembly. The lower part of the second mixing shaft 5 is connected to several layers of second fan blade assemblies arranged along the height direction of the mixing tank 1. Several second crushing units are provided on the second fan blade assembly.

[0042] In this embodiment, the planetary carrier 3 is driven to rotate by a drive mechanism. When the planetary carrier 3 rotates, it drives the first stirring shaft 4 and the second stirring shaft 5 in the mixing box 1 to revolve around the center point of the mixing box 1 synchronously (in this utility model, the mixing box adopts an existing planetary mixer, and the structure of the planetary mixer and the connection method of each part are existing technologies, which will not be described here). This coarsely stirs the phosphogypsum powder, dihydrate phosphogypsum powder, hydration regulator and water.

[0043] Meanwhile, due to the characteristics of the planetary carrier 3, it can drive the first stirring shaft 4 and the second stirring shaft 5 to rotate at high speed, thereby enhancing the stirring of phosphogypsum powder and dihydrate phosphogypsum powder in a localized area, improving the local stirring efficiency, and thus enhancing the overall stirring effect. As the first stirring shaft 4 and the second stirring shaft 5 revolve and rotate, the first and second blade assemblies on them will also rotate. The multi-layered arrangement of the first and second blade assemblies can cover different height areas of the mixing tank 1, ensuring uniform stirring of phosphogypsum powder and dihydrate phosphogypsum powder in the vertical direction.

[0044] In addition, the first crushing unit and the second crushing unit provided on the first blade assembly and the second blade assembly will rotate along with the first blade assembly and the second blade assembly. During the rotation, the first crushing unit and the second crushing unit will directly contact and crush the lumps of hydrated phosphogypsum powder, thereby preventing the lumps of hydrated phosphogypsum powder from accumulating at the outlet of the mixing tank 1, and thus preventing the occurrence of blockage.

[0045] Through the synergistic effect of revolution and rotation, as well as the arrangement of multi-layer fan blade assembly and crushing unit, this utility model achieves efficient stirring and uniform mixing of phosphogypsum powder and dihydrate phosphogypsum powder, as well as fine crushing of lumps after phosphogypsum powder hydration, ensuring the smooth progress of continuous operation.

[0046] The first fan blade assembly includes a first rotating sleeve 6 sleeved on the first stirring shaft 4, and first stirring blades 7 extending outward from both sides of the first rotating sleeve 6. The central axis of the first stirring blades 7 is perpendicular to the central axis of the first rotating sleeve 6, and the first crushing unit is disposed on the surface of the first stirring blades 7.

[0047] The second fan blade assembly includes a second rotating sleeve 8 sleeved on the second stirring shaft 5, and second stirring blades 9 extending outward from both sides of the second rotating sleeve 8. The central axis of the second stirring blades 9 is perpendicular to the central axis of the second rotating sleeve 8, and the second crushing unit is disposed on the surface of the second stirring blades 9.

[0048] In this embodiment, the first fan blade assembly includes a first rotating sleeve 6, which is detachably connected to the first stirring shaft 4 via bolts and nuts. The number of layers in the first fan blade assembly can be adjusted in real time by disassembling the first rotating sleeve 6, based on the stirring amounts of phosphogypsum powder and dihydrate phosphogypsum powder.

[0049] When the first stirring shaft 4 rotates, it drives the first rotating sleeve 6 to rotate, which in turn drives the first stirring blades 7 arranged on both sides of the first rotating sleeve 6 to rotate. During the rotation of the first stirring blades 7, the phosphogypsum powder and dihydrate phosphogypsum powder at local height positions can be stirred. The use of several layers of first stirring blades 7 on the first rotating sleeve can stir the amount of phosphogypsum powder and dihydrate phosphogypsum powder deposited in local positions in the mixing tank 1, preventing the phosphogypsum powder and dihydrate phosphogypsum powder from depositing at the bottom of the mixing tank 1.

[0050] The first crushing unit is installed on the first stirring blade 7. The rotation of the first stirring blade 7 drives the first crushing unit to rotate. During the rotation, the first crushing unit directly contacts and crushes the lumps of hydrated phosphogypsum powder, thereby preventing the lumps of hydrated phosphogypsum powder from accumulating at the outlet of the mixing tank 1 and thus preventing blockage.

[0051] Similarly, the second rotating sleeve 8 is detachably connected to the second rotating shaft 5 by bolts and nuts. The number of layers in the second fan blade assembly can be adjusted in real time by disassembling the second rotating sleeve 8, depending on the mixing volume of the phosphogypsum powder and dihydrate phosphogypsum powder.

[0052] When the second stirring shaft 5 rotates, it drives the second rotating sleeve 8 to rotate, which in turn drives the second stirring blades 9 arranged on both sides of the second rotating sleeve 8 to rotate. During the rotation of the second stirring blades 9, the phosphogypsum powder and dihydrate phosphogypsum powder at local height positions can be stirred. The use of several layers of second stirring blades 9 on the second rotating sleeve 8 can stir the amount of phosphogypsum powder and dihydrate phosphogypsum powder deposited in local positions in the mixing tank 1, preventing the phosphogypsum powder and dihydrate phosphogypsum powder from depositing at the bottom of the mixing tank 1.

[0053] The second crushing unit is installed on the second stirring blade 9. The rotation of the second stirring blade 9 drives the second crushing unit to rotate. During the rotation, the second crushing unit directly contacts and crushes the lumps of hydrated phosphogypsum powder, thereby preventing the lumps of hydrated phosphogypsum powder from accumulating at the outlet of the mixing tank 1 and thus preventing blockage.

[0054] Through the synergistic action of the first and second blade assemblies, phosphogypsum powder and dihydrate phosphogypsum powder can be simultaneously stirred within localized areas of the mixing tank 1, and the hydrated phosphogypsum powder agglomerates can be broken up. This dual action not only promotes the mixing and flow of phosphogypsum powder and dihydrate phosphogypsum powder, but also significantly enhances the stirring effect and improves stirring efficiency. Furthermore, the hydrated phosphogypsum powder agglomerates can be rapidly broken up within the mixing tank 1, thereby preventing the accumulation of hydrated phosphogypsum powder agglomerates at the outlet of the mixing tank 1 and thus preventing blockage.

[0055] The first crushing unit includes a first crushing cone 10 in the shape of a cone, and the second crushing unit includes a second crushing cone 11 in the shape of a cone. One end of the first crushing cone 10 and the second crushing cone 11 are both base ends, and the other end of the first crushing cone 10 and the second crushing cone 11 are tips. The base end of the first crushing cone 10 is fixedly connected to the first stirring blade, and the tip of the first crushing cone 10 faces the outside of the first stirring blade. The base end of the second crushing cone 11 is fixedly connected to the second stirring blade, and the tip of the second crushing cone 11 faces the outside of the second stirring blade.

[0056] In this embodiment, the base end of the first crushing cone 10 is wider and is fixedly connected to the first stirring blade 7. When the first stirring blade 7 rotates, it drives the first crushing cone 10 to rotate as well. The tip of the first crushing cone 10 faces the outside of the first stirring blade 7, so that it can directly contact and penetrate the surface of the hydrated phosphogypsum powder agglomerates during rotation, thereby crushing them and preventing the hydrated phosphogypsum powder agglomerates from accumulating at the outlet of the mixing tank 1, thus preventing blockage.

[0057] Similarly, the base end of the second crushing cone 11 is wider and is fixedly connected to the second stirring blade 9. When the second stirring blade 9 rotates, it will drive the second crushing cone 11 to rotate as well. The tip of the second crushing cone 11 faces the outside of the second stirring blade 9, so that it can directly contact and penetrate the surface of the hydrated phosphogypsum powder agglomerates during rotation, thereby crushing it.

[0058] Through the coordinated action of the first crushing cone 10 and the second crushing cone 11, the lumps of hydrated phosphogypsum powder can be crushed simultaneously in local areas of the mixing tank 1, thereby increasing the crushing speed of the lumps and preventing them from accumulating at the outlet of the mixing tank 1, thus preventing blockage.

[0059] The first stirring shaft 4 and the second stirring shaft 5 are respectively provided with a first wall scraping assembly and a second wall scraping assembly. The first wall scraping assembly includes a first inclined rod 12 that is inclined. The end of the first inclined rod 12 is fixedly connected to the side of the first stirring shaft 4. The other end of the first inclined rod 12 extends toward the inner wall of the mixing tank 1, and a first wall scraping plate 13 is fixedly connected to the extended end of the first inclined rod 12.

[0060] The second wall scraping assembly includes a second inclined rod 14 that is inclined. The end of the second inclined rod 14 is fixedly connected to the side of the second stirring shaft 5. The other end of the second inclined rod 14 extends toward the inner wall of the mixing tank 1, and a second wall scraping plate 15 is fixedly connected to the extended end of the second inclined rod 14.

[0061] In this embodiment, the first tilting rod 12 is fixedly disposed on the side of the first stirring shaft 4. The end of the first tilting rod 12 extending toward the inner wall of the mixing tank 1 is fixedly connected to the first scraper plate 13, and there is a 3mm space gap between the end face of the first scraper plate 13 and the inner wall of the mixing tank 1. The second tilting rod 14 is fixedly disposed on the side of the second stirring shaft 5. The end of the second tilting rod 14 extending toward the inner wall of the mixing tank 1 is fixedly connected to the second scraper plate 15, and there is a 3mm space gap between the end face of the second scraper plate 15 and the inner wall of the mixing tank 1.

[0062] When the first stirring shaft 4 revolves with the planetary carrier 3, because there is a space between the end face of the first scraper 13 and the inner wall of the mixing tank 1, the end face of the first scraper 13 will not directly contact the inner wall of the mixing tank 1. Therefore, this space can ensure that the first scraper 13 can scrape off the clumps of phosphogypsum powder after hydration on the inner wall of the mixing tank 1, and can also avoid scratching the surface of the inner wall of the mixing tank 1.

[0063] When the second stirring shaft 5 revolves with the planetary carrier 3, because there is a space between the end face of the second scraper 15 and the inner wall of the mixing tank 1, the end face of the second scraper 15 will not directly contact the inner wall of the mixing tank 1. Therefore, this space can ensure that the second scraper 15 can remove the clumps of phosphogypsum powder after hydration on the inner wall of the mixing tank 1, and can also avoid scratching the surface of the inner wall of the mixing tank 1.

[0064] Through the coordinated action of the first scraper 13 and the second scraper 15, the clumps of hydrated phosphogypsum powder in localized areas of the inner wall of the mixing tank 1 can be scraped off, thereby quickly removing all clumps of hydrated phosphogypsum powder adhering to the inner wall of the mixing tank 1. This prevents the clumps of hydrated phosphogypsum powder from adhering to and accumulating on the inner wall of the mixing tank 1, avoiding blockages and ensuring continuous operation.

[0065] The drive mechanism includes a servo motor 16, which is mounted on the top of the housing cover 2 and is fixedly connected to the planetary carrier 3 through the housing cover 2. In this embodiment, the servo motor 16 is mounted on the top of the housing cover 2 for easy installation and maintenance. The output shaft of the servo motor 16 passes through the housing cover 2 and is fixedly connected to the planetary carrier 3 (this invention uses an existing planetary mixer, and the structure of the planetary mixer and the connection method of each part are existing technologies, which will not be described in detail here), enabling the servo motor 16 to drive the planetary carrier 3 to rotate, thereby realizing the revolution and rotation of the first stirring shaft 4 and the second stirring shaft 5.

[0066] This embodiment employs an MPC500-3000 planetary mixer, with improvements made to the planetary mixing components. By incorporating multiple layers of first mixing blades 7 and second mixing blades 9, it enables flexible and efficient mixing of different amounts of phosphogypsum powder and dihydrate phosphogypsum powder. Compared to existing technologies, the first crushing cone 10 and second crushing cone 11 in this embodiment can efficiently break up clumps formed after phosphogypsum powder hydration, thereby preventing clumps from accumulating at the output port and ensuring smooth continuous operation. Furthermore, the first scraper 13 and second scraper 15 can quickly remove all clumps formed after phosphogypsum powder hydration adhering to the inner wall of the mixing tank 1, further improving the overall mixing efficiency.

[0067] The above are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mixing device for mixing phosphogypsum, characterized in that, The device includes a mixing tank with a lid on top. Inside the lid is a rotating planetary carrier. The top of the lid has a drive mechanism for rotating the planetary carrier. The planetary carrier extends into the mixing tank with a first stirring shaft and a second stirring shaft that have a self-rotating function. The axes of the first stirring shaft and the second stirring shaft are parallel to the axis of the mixing tank. The lower part of the first stirring shaft is connected to several layers of first fan blade assemblies arranged along the height direction of the mixing tank. Several first crushing units are provided on the first fan blade assemblies. The lower part of the second stirring shaft is connected to several layers of second fan blade assemblies arranged along the height direction of the mixing tank. Several second crushing units are provided on the second fan blade assemblies.

2. The stirring device for phosphogypsum mixture according to claim 1, characterized in that: The first fan blade assembly includes a first rotating sleeve sleeved on a first stirring shaft, and first stirring blades extending outward from both sides of the first rotating sleeve. The central axis of the first stirring blades is perpendicular to the central axis of the first rotating sleeve, and the first crushing unit is disposed on the surface of the first stirring blades. The second fan blade assembly includes a second rotating sleeve sleeved on a second stirring shaft. Second stirring blades extend outward from both sides of the second rotating sleeve. The central axis of the second stirring blades is perpendicular to the central axis of the second rotating sleeve. The second crushing unit is disposed on the surface of the second stirring blades.

3. The stirring device for phosphogypsum mixture according to claim 2, characterized in that: The first crushing unit includes a first crushing cone in the shape of a cone, and the second crushing unit includes a second crushing cone in the shape of a cone. One end of the first crushing cone and the second crushing cone are both base ends, and the other end of the first crushing cone and the second crushing cone are both tips. The base end of the first crushing cone is fixedly connected to a first stirring blade, and the tip of the first crushing cone faces the outside of the first stirring blade. The base end of the second crushing cone is fixedly connected to a second stirring blade, and the tip of the second crushing cone faces the outside of the second stirring blade.

4. The stirring device for phosphogypsum mixture according to claim 1, characterized in that: The first stirring shaft and the second stirring shaft are respectively provided with a first wall scraping assembly and a second wall scraping assembly. The first wall scraping assembly includes a first inclined rod that is inclined. The end of the first inclined rod is fixedly connected to the side of the first stirring shaft. The other end of the first inclined rod extends toward the inner wall of the mixing tank, and a first wall scraping plate is fixedly connected to the extended end of the first inclined rod. The second wall scraping assembly includes a second inclined rod that is inclined, one end of which is fixedly connected to the side of the second stirring shaft, the other end of which extends toward the inner wall of the mixing tank, and a second wall scraping plate is fixedly connected to the extended end of the second inclined rod.

5. The stirring device for phosphogypsum mixture according to claim 1, characterized in that: The drive mechanism includes a servo motor, which is mounted on the top of the housing cover and is fixedly connected to the planetary carrier through the housing cover.

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