Device for pretreating phosphogypsum with hydroxyapatite powder

Abstract

The utility model discloses a device for pretreating phosphogypsum with hydroxyapatite powder, and relates to the technical field of phosphogypsum, the device comprises an upper tank body, a lower tank body and a motor, the lower tank body is fixedly connected to the bottom of the upper tank body, the upper tank body and the lower tank body are mutually connected through a plurality of annularly distributed bolts, and the top of the upper tank body is fixedly connected with the motor; the output end of the motor penetrates through the top of the upper tank body and extends into the upper tank body, and the device for pretreating phosphogypsum through hydroxyapatite powder is provided with a scraping structure, so that the inner walls of the upper tank body and the lower tank body are scraped through rotation of a scraping plate; the ardealite, the hydroxyapatite powder and the additive are prevented from being adhered to the inner walls of the upper tank body and the lower tank body in the stirring process, so that the mixture is not uniformly mixed, and the mixture adhered to the inner walls of the upper tank body and the lower tank body is scraped by a scraping plate; and then the mixture participates in the mixing operation of the phosphogypsum, the hydroxyapatite powder and the additive in the upper tank body and the lower tank body again.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphogypsum, in particular to a device for pretreating phosphogypsum with hydroxyapatite powder. Background Technique

[0002] Phosphogypsum is an inevitable waste generated in the phosphochemical industry. However, this substance contains relatively high economic value. In order to realize the reuse of phosphogypsum, it is necessary to remove impurities from it.

[0003] For example, a device for pretreating phosphogypsum with hydroxyapatite powder with the publication number of CN220920190U belongs to the technical field of phosphogypsum application. A device for pretreating phosphogypsum with hydroxyapatite powder includes a shell, a rotating shaft, stirring rollers, a first spiral blade and a second spiral blade. The shell has a feed inlet and a discharge outlet, and a valve is installed at the discharge outlet. The rotating shaft is rotatably installed in the shell, the stirring rollers are installed on the rotating shaft, and along the axis direction of the rotating shaft, the extending directions of every two adjacent stirring rollers are perpendicular to each other. The first spiral blade is installed on the stirring roller and extends along the axis direction of the rotating shaft. The second spiral blade is installed on the stirring roller and extends along the axis direction of the rotating shaft. The spiral directions of the first spiral blade and the second spiral blade are opposite, and the diameter of the first spiral blade is larger than that of the second spiral blade. The phosphogypsum, clear water and hydroxyapatite powder in the shell are mixed more evenly by the rotation of the first spiral blade and the second spiral blade.

[0004] In the above-mentioned device for pretreating phosphogypsum with hydroxyapatite powder, the materials are stirred by two spiral blades, so that the materials are mixed more fully. In the actual operation process, when the phosphogypsum, hydroxyapatite powder and additives are stirred and mixed, the materials are prone to adhesion in the containing equipment, resulting in poor uniformity of the mixture and difficult cleaning of the device. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for pretreating phosphogypsum with hydroxyapatite powder, so as to solve the problems that when the phosphogypsum, hydroxyapatite powder and additives are stirred and mixed, the materials are prone to adhesion in the containing equipment, resulting in poor uniformity of the mixture and difficult cleaning of the device in the above-mentioned background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A device for pretreating phosphogypsum with hydroxyapatite powder includes an upper tank body, a lower tank body and a motor. The lower tank body is fixedly connected to the bottom of the upper tank body, and the upper tank body and the lower tank body are connected to each other by a plurality of bolts distributed in a ring. The motor is fixedly connected to the top of the upper tank body.

[0007] The output end of the motor penetrates through the top of the upper tank body and extends into the upper tank body. The output end of the motor is fixedly connected with a driving structure. At the same time, scraping structures for scraping the adhesions on the inner walls of the upper tank body and the lower tank body are rotatably connected to the bottoms of both ends of the driving structure. The scraping structure includes a driven disk, and four link rods distributed in a ring are fixedly connected to the bottom of the driven disk. A fixed ring is fixedly connected to the bottom of the link rods. Scrapers are fixedly connected to the outer sides of the link rods. The scrapers are made of an elastic material. The upper and lower ends of the scrapers are fixedly connected to the driven disk and the fixed ring respectively. At the same time, the scrapers are in mutual contact with the inner sides of the upper tank body and the lower tank body.

[0008] Preferably, two symmetrically distributed feeding ports are fixedly connected to the upper end of the outer side of the upper tank body, and the inside of the feeding ports is communicated with the inside of the upper tank body. The lower end of the lower tank body is of a conical structure, and a discharge port is arranged at the bottom of the lower tank body.

[0009] Preferably, the driving structure includes a driving block fixedly connected to the output end of the motor. Two driving rods vertically distributed up and down are fixedly connected to both ends of the driving block. Gears are rotatably connected to the inner parts of the two driving rods far away from the driving block.

[0010] Preferably, a ring gear distributed in a ring is arranged at the upper end of the inner side of the upper tank body, and the inner side of the ring gear is meshed with the outer side of the gear.

[0011] Preferably, the lower end of the gear penetrates through the end of the driving rod, and the lower end of the gear is fixedly connected to the top of the driven disk. A bearing is arranged at the connection between the gear and the driving rod.

[0012] Preferably, a driving shaft is fixedly connected to the bottom of the driving block. Four link rods distributed in a ring are fixedly connected to both the upper and lower ends of the outer side of the driving shaft. An outer stirring belt and an inner stirring belt are fixedly connected between every two link rods respectively. The outer stirring belt and the inner stirring belt are both provided with four and are distributed on the outer side of the driving shaft. The outer stirring belt is located on the side far away from the driving shaft, and the inner stirring belt is located on the side close to the driving shaft.

[0013] Preferably, four stirring fan blades distributed in a ring are fixedly connected to the outer side of the lower end of the driving shaft. The shape swept by the stirring fan blades during rotation is of a conical structure. The outer stirring belt and the inner stirring belt are both spirally distributed on the outer side of the driving shaft, and the spiral directions of the outer stirring belt and the inner stirring belt are opposite.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The hydroxyapatite powder pre-treatment phosphogypsum device is provided with a scraping structure. The inner walls of the upper tank body and the lower tank body are scraped by the rotation of the scraper, preventing the adhesion of phosphogypsum, hydroxyapatite powder and additives to the inner walls of the upper tank body and the lower tank body during the stirring process, which may lead to uneven mixing of the mixture. The scraper scrapes off the mixture adhering to the inner walls of the upper tank body and the lower tank body, and then enables the mixture to participate in the mixing operation of phosphogypsum, hydroxyapatite powder and additives inside the upper tank body and the lower tank body again;

[0016] Furthermore, since the spiral directions of the outer stirring belt and the inner stirring belt are opposite, when the outer stirring belt and the inner stirring belt drive the mixture inside the upper tank body and the lower tank body to move during rotation, the outer stirring belt and the inner stirring belt drive the mixture to move in opposite directions respectively, forming an up-and-down rotating circulation flow of the mixture inside the upper tank body and the lower tank body, thereby making the mixing of phosphogypsum, hydroxyapatite powder and additives more uniform;

[0017] Furthermore, the propeller structure formed by the four stirring fan blades is located at the lower end inside the overall structure formed by the upper tank body and the lower tank body, enabling the stirring fan blades to disturb the flow of the mixture flowing at the bottom of the upper tank body and the lower tank body, preventing the mixture from depositing at the bottom of the lower tank body to form sediment. At the same time, the stirring fan blades disturb the fluid around the already formed sediment, enabling the disturbed fluid to drive the sediment to participate in the mixing operation inside the upper tank body and the lower tank body again, and further making the mixing of phosphogypsum, hydroxyapatite powder and additives more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 2 is an exploded structure schematic diagram of the present utility model;

[0020] Figure 3 is a sectional structure schematic diagram of the upper tank body of the present utility model;

[0021] Figure 4 is a structure schematic diagram of the upper tank body of the present utility model;

[0022] Figure 5 is a sectional structure schematic diagram of the driving block of the present utility model;

[0023] Figure 6 is a structure schematic diagram of the scraper of the present utility model;

[0024] Figure 7 is a structure schematic diagram of the stirring fan blade of the present utility model.

[0025] In the figure: 1. Upper tank body; 2. Lower tank body; 3. Motor; 4. Feeding port; 5. Discharge port; 6. Driving block; 7. Driving rod; 8. Gear; 9. Driven disc; 10. Bearing; 11. Scraper; 12. Tooth ring; 13. Driving shaft; 14. Connecting rod; 15. Outer stirring belt; 16. Inner stirring belt; 17. Stirring fan blade. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1: Please refer to Figure 1 - Figure 7 , the present invention provides the following technical solutions:

[0028] A hydroxyapatite powder pre-treatment phosphogypsum device, including an upper tank body 1, a lower tank body 2, and a motor 3. The lower tank body 2 is fixedly connected to the bottom of the upper tank body 1, and the upper tank body 1 and the lower tank body 2 are connected to each other by a plurality of annularly distributed bolts. A motor 3 is fixedly connected to the top of the upper tank body 1;

[0029] The output end of the motor 3 penetrates through the top of the upper tank body 1 and extends into the upper tank body 1, and a driving structure is fixedly connected to the output end of the motor 3. At the same time, scraping structures for scraping the adhesions on the inner walls of the upper tank body 1 and the lower tank body 2 are rotatably connected to the bottoms of both ends of the driving structure. The scraping structure includes a driven disc 9, and four annularly distributed connecting rods are fixedly connected to the bottom of the driven disc 9. A fixed ring is fixedly connected to the bottom of the connecting rod. Scrapers 11 are fixedly connected to the outer sides of the connecting rods. The scraper 11 is made of an elastic material, and the upper and lower ends of the scraper 11 are fixedly connected to the driven disc 9 and the fixed ring respectively. At the same time, the scraper 11 is in mutual fit with the inner sides of the upper tank body 1 and the lower tank body 2.

[0030] Two symmetrically distributed feeding ports 4 are fixedly connected to the upper outer side of the upper tank body 1, and the inside of the feeding port 4 is communicated with the inside of the upper tank body 1. The lower end of the lower tank body 2 is of a conical structure, and a discharge port 5 is provided at the bottom of the lower tank body 2.

[0031] The driving structure includes a driving block 6 fixedly connected to the output end of the motor 3, and two vertically distributed driving rods 7 are fixedly connected to both ends of the driving block 6. Gears 8 are rotatably connected to the inner ends of the two driving rods 7 away from the driving block 6.

[0032] An annularly distributed tooth ring 12 is provided at the upper inner side of the upper tank body 1, and the inner side of the tooth ring 12 is meshed with the outer side of the gear 8.

[0033] The bottom end of the gear 8 penetrates through the end of the driving rod 7, and the lower end of the gear 8 is fixedly connected to the top of the driven disk 9. A bearing 10 is provided at the connection between the gear 8 and the driving rod 7.

[0034] A driving shaft 13 is fixedly connected to the bottom of the driving block 6. Four connecting rods 14 distributed in a ring shape are fixedly connected to the upper and lower ends of the outer side of the driving shaft 13. An outer stirring belt 15 and an inner stirring belt 16 are fixedly connected between every two connecting rods 14 respectively. The outer stirring belt 15 and the inner stirring belt 16 are both provided with four and distributed on the outer side of the driving shaft 13. The outer stirring belt 15 is located on the side far from the driving shaft 13, and the inner stirring belt 16 is located on the side close to the driving shaft 13.

[0035] Four stirring fan blades 17 distributed in a ring shape are fixedly connected to the outer side of the lower end of the driving shaft 13. The shape swept by the stirring fan blades 17 during rotation is a conical structure. The outer stirring belt 15 and the inner stirring belt 16 are both spirally distributed on the outer side of the driving shaft 13, and the spiral directions of the outer stirring belt 15 and the inner stirring belt 16 are opposite.

[0036] Embodiment 2: On the basis of Embodiment 1, its specific working principle is as follows:

[0037] In this hydroxyapatite powder pretreating phosphogypsum device, during the self-rotation of the gear 8, the driven disk 9 at the bottom of the gear 8 will be driven to rotate, so that the driven disk 9 drives the connecting rod and the fixed ring at the bottom to rotate, and the four scraping plates 11 at the bottom of the driven disk 9 will rotate around the driven disk 9 following the gear 8. The inner walls of the upper tank body 1 and the lower tank body 2 are scraped by the rotation of the scraping plates 11, preventing the adhesion of phosphogypsum, hydroxyapatite powder and additives to the inner walls of the upper tank body 1 and the lower tank body 2 during the stirring process, resulting in uneven mixing of the mixture. The scraping plates 11 scrape off the mixture adhering to the inner walls of the upper tank body 1 and the lower tank body 2, and then the mixture re-participates in the mixing operation of phosphogypsum, hydroxyapatite powder and additives inside the upper tank body 1 and the lower tank body 2;

[0038] The driving block 6 is driven to rotate by the motor 3. During the rotation of the driving block 6, the driving rod 7 will be driven to revolve around the driving block 6. At the same time, the driving rod 7 will drive the gear 8 to revolve around the driving block 6. Since the outer side of the gear 8 meshes with the toothed ring 12, during the revolution of the gear 8 around the driving rod 7, the gear 8 itself will rotate through meshing with the toothed ring 12, and then the driven disk 9 is driven to rotate at the bottom of the driving rod 7 through the gear 8;

[0039] During the rotation of the driving block 6 driven by the motor 3, while the driving block 6 rotates the driving rod 7, it drives the driving shaft 13 to rotate at its bottom. By the rotation of the motor 3, a plurality of connecting rods 14 are driven to rotate around the driving shaft 13, so that the connecting rods 14 drive a plurality of outer stirring belts 15 and inner stirring belts 16 to rotate around the driving shaft 13. During the rotation of the plurality of outer stirring belts 15 and the plurality of inner stirring belts 16, the phosphogypsum, hydroxyapatite powder and additives inside the upper tank body 1 and the lower tank body 2 are stirred to form a mixture. Since the spiral directions of the outer stirring belt 15 and the inner stirring belt 16 are opposite, when the outer stirring belt 15 and the inner stirring belt 16 drive the mixture inside the upper tank body 1 and the lower tank body 2 to move during rotation, the outer stirring belt 15 and the inner stirring belt 16 respectively drive the mixture to move in the opposite direction, so that the mixture inside the upper tank body 1 and the lower tank body 2 forms an up-and-down rotating circulation flow, thereby making the mixing of phosphogypsum, hydroxyapatite powder and additives more uniform;

[0040] During the rotation of the driving shaft 13, the driving shaft 13 will drive the stirring fan blades 17 to rotate around it. The four stirring fan blades 17 form a propeller structure, and the propeller structure formed by the four stirring fan blades 17 is located at the lower end inside the overall structure formed by the upper tank body 1 and the lower tank body 2, so that the stirring fan blades 17 disturb the flow of the mixture flowing at the bottom of the upper tank body 1 and the lower tank body 2, preventing the mixture from depositing at the bottom of the lower tank body 2 to form sediments. At the same time, by the stirring fan blades 17 disturbing the fluid around the already formed sediments, the disturbed fluid drives the sediments to re-participate in the mixing operation inside the upper tank body 1 and the lower tank body 2, thereby making the mixing of phosphogypsum, hydroxyapatite powder and additives more uniform.

[0041] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for pretreating phosphogypsum with hydroxyapatite powder, comprising an upper tank body (1), a lower tank body (2), and a motor (3). The lower tank body (2) is fixedly connected to the bottom of the upper tank body (1), and the upper tank body (1) and the lower tank body (2) are connected to each other by a plurality of bolts distributed in a ring. The top of the upper tank body (1) is fixedly connected with a motor (3). It is characterized in that: The output end of the motor (3) penetrates through the top of the upper tank body (1) and extends into the upper tank body (1). The output end of the motor (3) is fixedly connected with a driving structure. At the same time, scraping structures for scraping the adhesions on the inner walls of the upper tank body (1) and the lower tank body (2) are rotatably connected to the bottoms of both ends of the driving structure. The scraping structure includes a driven disk (9). Four connecting rods distributed in a ring are fixedly connected to the bottom of the driven disk (9). A fixed ring is fixedly connected to the bottom of the connecting rods. Scrapers (11) are fixedly connected to the outer sides of the connecting rods. The scrapers (11) are made of elastic material. The upper and lower ends of the scrapers (11) are fixedly connected to the driven disk (9) and the fixed ring respectively. At the same time, the scrapers (11) are in mutual fit with the inner sides of the upper tank body (1) and the lower tank body (2).

2. The hydroxyapatite powder pre-treatment phosphogypsum device according to claim 1, characterized in that: Two symmetrically distributed feeding ports (4) are fixedly connected to the upper outer side of the upper tank body (1). The inside of the feeding ports (4) is communicated with the inside of the upper tank body (1). The lower end of the lower tank body (2) is of a conical structure, and a discharge port (5) is provided at the bottom of the lower tank body (2).

3. The hydroxyapatite powder pre-treatment phosphogypsum device according to claim 2, characterized in that: The driving structure includes a driving block (6) fixedly connected to the output end of the motor (3). Two driving rods (7) vertically distributed up and down are fixedly connected to both ends of the driving block (6). Gears (8) are rotatably connected to the inner ends of the two driving rods (7) far away from the driving block (6).

4. A hydroxyapatite powder pre-treatment phosphogypsum device according to claim 1, characterized in that: An annular tooth ring (12) is provided at the upper inner side of the upper tank body (1). The inner side of the tooth ring (12) is meshed with the outer side of the gear (8).

5. The hydroxyapatite powder pre-treated phosphogypsum device according to claim 4, characterized in that: The lower end of the gear (8) penetrates through the end of the driving rod (7). The lower end of the gear (8) is fixedly connected to the top of the driven disk (9). A bearing (10) is provided at the connection between the gear (8) and the driving rod (7).

6. The hydroxyapatite powder pretreated phosphogypsum device according to claim 3, characterized in that: A driving shaft (13) is fixedly connected to the bottom of the driving block (6). Four connecting rods distributed in a ring are fixedly connected to both the upper and lower outer sides of the driving shaft (13). An outer stirring belt (15) and an inner stirring belt (16) are fixedly connected between every two connecting rods (14) respectively. The outer stirring belt (15) and the inner stirring belt (16) are both provided with four and distributed on the outer side of the driving shaft (13). The outer stirring belt (15) is located on the side far away from the driving shaft (13), and the inner stirring belt (16) is located on the side close to the driving shaft (13).

7. A hydroxyapatite powder pre-treatment phosphogypsum device according to claim 6, characterized in that: Four stirring fan blades (17) distributed in a ring are fixedly connected to the lower outer side of the driving shaft (13). The shape swept by the stirring fan blades (17) during rotation is of a conical structure. The outer stirring belt (15) and the inner stirring belt (16) are both spirally distributed on the outer side of the driving shaft (13), and the spiral directions of the outer stirring belt (15) and the inner stirring belt (16) are opposite.

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