Comprehensive impurity removal device for wet-process phosphoric acid

Abstract

The utility model provides a wet-process phosphoric acid comprehensive impurity removal device which comprises a box body and a filter box, the interior of the box body is fixedly connected with a frame plate, the middle of the frame plate is fixedly connected with a transverse plate, a blocking mechanism is arranged in the middle of the transverse plate, a mixing mechanism is fixedly installed at the top of the box body, and the interior of the filter box is fixedly connected with a filter plate. A backflow mechanism communicated with the box body is arranged on one side of the filter plate, an impurity removal mechanism is arranged in the box body, the impurity removal mechanism is arranged above the frame plate, and the impurity removal mechanism is in transmission connection with the traction mechanism. According to the device, the box body is adopted for impurity treatment of phosphoric acid, phosphoric acid is stored through the box body, various adsorbents are added for mixing, uniform distribution of the adsorbents is achieved through the mixing mechanism, impurity precipitation is achieved through adsorption and impurity removal, and separation between precipitated impurities and phosphoric acid is achieved through cooperation of the frame plate and the cover plate; and meanwhile, when the cover plate rotates, the communicating pipes can be synchronously opened, redundant phosphoric acid in the impurities is conveyed again through the filter box, and the efficient performance of the device is improved.

Description

Technical Field

[0001] The utility model relates to a comprehensive impurity removal device for wet-process phosphoric acid, belonging to the technical field of phosphoric acid impurity removal. Background Art

[0002] Wet-process phosphoric acid impurity removal is a complex and important process, which aims to improve the purity of phosphoric acid to meet the needs of different fields (such as industrial grade, feed grade, food grade, etc.). The main impurities in wet-process phosphoric acid include inorganic impurities such as fluorine, sulfate, iron, aluminum, magnesium, silicon, calcium, and trace amounts of harmful heavy metals such as lead, cadmium and metalloid elements arsenic. The presence of these impurities will seriously affect the quality and use of phosphoric acid. There are many methods to remove impurities in wet-process phosphoric acid, mainly including chemical precipitation, solvent extraction, physical adsorption, etc.

[0003] When using physical adsorption to remove impurities from phosphoric acid, although the operation is simple, the impurities after impurity removal are not easy to be effectively separated, and the adsorbent is not easy to fully contact the impurities when adsorbing them. After the precipitated impurities are formed, it is difficult to handle the impurities, which brings inconvenience to the operation and affects the efficiency of wet phosphoric acid removal. Utility Model Content

[0004] The utility model provides a comprehensive impurity removal device for wet-process phosphoric acid in order to solve the technical problem of low impurity removal efficiency of wet-process phosphoric acid.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a comprehensive impurity removal device for wet-process phosphoric acid, comprising:

[0007] A box body, the box body is fixedly mounted to the top of the base, the inside of the box body is fixedly connected to the frame plate, the middle of the frame plate is fixedly connected to the transverse plate, and a blocking mechanism is provided in the middle of the transverse plate, and a mixing mechanism is fixedly mounted on the top of the box body;

[0008] A filter box, the filter box is fixedly connected to the bottom of the base, the interior of the filter box is fixedly connected to the filter plate, one side of the filter plate is provided with a reflux mechanism connected to the box body, and the interior of the box body is provided with a debris removal mechanism, the debris removal mechanism is arranged above the frame plate, and the debris removal mechanism is transmission-connected to the traction mechanism.

[0009] In the technical solution, the frame plate is a square hollow structure, the frame plate is located at the bottom of the box, the bottom of the box located inside the frame plate is rotatably connected to the rotating rod, the number of the rotating rods is two, and the two rotating rods are symmetrically distributed on both sides of the horizontal plate.

[0010] In this technical solution, the plugging mechanism includes a guide rod and a connecting pipe. The guide rod is inserted through the middle of the transverse plate. The bottom of the guide rod is fixedly connected to a plug block, and a connecting plate is fixedly connected to the top of the plug block. The connecting pipe is respectively connected through the middle of the box body and the base, and the plug block extends into the connecting pipe.

[0011] In this technical solution, the rotating rod is of a bent structure. The top of the rotating rod extends above the frame plate, and the other end of the rotating rod extends below the connecting plate.

[0012] In this technical solution, the mixing mechanism includes a bottom plate which is fixedly connected to the inside of the box body. The top and bottom of the box body are respectively rotatably connected to both ends of a rotating shaft. Both ends of the rotating shaft are respectively fixedly connected to a stirring blade and a fixed gear, and the transverse plate is located between two cover plates.

[0013] In this technical solution, a stirring motor is fixedly installed on the side wall of the box body. The output end of the stirring motor is fixedly connected to an end face gear, and the end face gear is meshed with the fixed gear.

[0014] In this technical solution, the reflux mechanism includes a water pump and a water suction pipe. The water pump is fixedly connected to the side wall of the box body. The water pump is respectively fixedly connected to two water suction pipes. One of the water suction pipes is connected through the top of the box body, and the other water suction pipe is connected through the bottom of the filter box. The other side of the filter box is fixedly connected to a sewage pipe.

[0015] In this technical solution, the impurity removal mechanism includes cover plates which are rotatably connected to the top surface of the frame plate. The number of the cover plates is two. When the cover plates rotate, both cover plates overlap with both sides of the transverse plate, and the two cover plates are symmetrically distributed on both sides of the bottom plate and the guide rod.

[0016] In this technical solution, the traction mechanism includes a winding motor which is fixedly installed in the middle of the box body. The output end of the winding motor is fixedly connected to a winding wheel. Two ropes with opposite winding directions are arranged on the surface of the winding wheel, and each rope is fixedly connected to the top of the cover plate.

[0017] In this technical solution, a guide wheel is rotatably connected to the top of the box body. A rope is arranged on the surface of the guide wheel, and the rope is inserted through the top of the box body. A feeding pipe is connected through the side wall of the box body.

[0018] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present invention.

[0019] The positive and progressive effects of the present invention are as follows:

[0020] The above-mentioned wet-process phosphoric acid comprehensive impurity removal device uses a box body to treat the impurities of phosphoric acid, stores phosphoric acid through the box body, mixes by adding various adsorbents, realizes the uniform distribution of the adsorbents through a mixing mechanism, and conducts adsorption impurity removal to achieve impurity precipitation. The separation between the precipitated impurities and phosphoric acid is realized through the cooperation of a frame plate and a cover plate. At the same time, when the cover plate rotates, the synchronous opening of the connecting pipe can be realized, thereby realizing the rapid discharge of impurities. It can effectively improve the impurity removal efficiency while realizing the rapid collection of impurities, and re-transports the excess phosphoric acid in the impurities through a filter box, facilitating the impurity removal treatment of phosphoric acid inside the box body, and being beneficial to improving the high-efficiency performance of the device. Description of the Drawings

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model.

[0022] Figure 2 It is a schematic front view structure diagram inside the present utility model.

[0023] Figure 3 It is a schematic side view structure diagram inside the present utility model.

[0024] Figure 4 It is a schematic top view structure diagram at the frame plate of the present utility model.

[0025] Description of the Reference Numerals

[0026] 1. Box body; 2. Base; 3. Frame plate; 4. Cross plate; 5. Guide rod; 6. Plug; 7. Connecting plate; 8. Rotating rod; 9. Filter box; 10. Drain pipe; 11. Filter plate; 12. Water pump; 13. Water suction pipe; 14. Bottom plate; 15. Rotating shaft; 16. Stirring blade; 17. Fixed gear; 18. Stirring motor; 19. End face gear; 20. Connecting pipe; 21. Reeling motor; 22. Reeling wheel; 23. Pulling rope; 24. Cover plate; 25. Guide wheel; 26. Feeding pipe. Detailed Embodiment

[0027] The present utility model will be further described below by way of examples, but the present utility model is not limited to the scope of the described examples.

[0028] As Figures 1-4 shown, the wet-process phosphoric acid comprehensive impurity removal device includes:

[0029] A box body 1, the box body 1 is fixedly installed on the top of a base 2, the inside of the box body 1 is fixedly connected to a frame plate 3, the middle of the frame plate 3 is fixedly connected to a cross plate 4, and a plugging mechanism is provided in the middle of the cross plate 4. A mixing mechanism is fixedly installed on the top of the box body 1;

[0030] Filter box 9, the filter box 9 is fixedly connected to the bottom of the base 2, the inside of the filter box 9 is fixedly connected to the filter plate 11, a reflux mechanism communicating with the box body 1 is arranged on one side of the filter plate 11, and an impurity removal mechanism is arranged inside the box body 1. The impurity removal mechanism is arranged above the frame plate 3, and the impurity removal mechanism is in transmission connection with the traction mechanism.

[0031] In this technical solution, the frame plate 3 is a square hollow structure. The frame plate 3 is located at the bottom of the box body 1. The bottom of the box body 1 inside the frame plate 3 is rotatably connected to the rotating rod 8. The number of the rotating rods 8 is two, and the two rotating rods 8 are symmetrically distributed on both sides of the cross plate 4. The frame plate 3 is used to cooperate with the cover plate 24. When the cover plate 24 is closed, it can overlap with the frame plate 3 and the cross plate 4 to achieve sealing. At the same time, when the cover plate 24 is closed, it contacts the rotating rod 8, thereby rotating the rotating rod 8.

[0032] In this technical solution, the blocking mechanism includes a guide rod 5 and a communication pipe 20. The guide rod 5 is inserted through the middle of the cross plate 4. The bottom of the guide rod 5 is fixedly connected to a blocking block 6, and a connecting plate 7 is fixedly connected to the top of the blocking block 6. The communication pipe 20 is respectively connected through the middle of the box body 1 and the base 2, and the blocking block 6 extends into the communication pipe 20. When removing impurities, the blocking block 6 extends into the communication pipe 20. At this time, the guide rod 5 is at the bottommost part of the cross plate 4, and the connecting plate 7 is above the rotating rod 8.

[0033] In this technical solution, the rotating rod 8 is in a bent shape. The top of the rotating rod 8 extends above the frame plate 3, and the other end of the rotating rod 8 extends below the connecting plate 7. When the cover plate 24 rotates, its own weight forces the rotating rod 8 to rotate, so that the end of the rotating rod 8 pushes the connecting plate 7 upward. The connecting plate 7 drives the blocking block 6 and the guide rod 5 to move upward synchronously, so that the blocking block 6 is separated from the inside of the communication pipe 20. At this time, the cover plate 24 is immediately closed, so that the phosphoric acid above the cover plate 24 flows slowly, and at the same time, the phosphoric acid below the cover plate 24 enters the filter box 9 through the communication pipe 20.

[0034] In this technical solution, the mixing mechanism includes a bottom plate 14. The bottom plate 14 is fixedly connected to the inside of the box body 1. The top and the bottom plate 14 of the box body 1 are respectively rotatably connected to both ends of a rotating shaft 15. Both ends of the rotating shaft 15 are respectively fixedly connected to a stirring blade 16 and a fixed gear 17. The cross plate 4 is located between the two cover plates 24. By rotating the rotating shaft 15 between the bottom plate 14 and the box body 1, the stirring blade 16 is driven to rotate.

[0035] In this technical solution, a stirring motor 18 is fixedly installed on the side wall of the box body 1. The output end of the stirring motor 18 is fixedly connected to an end face gear 19, and the end face gear 19 is meshed with a fixed gear 17. When the stirring motor 18 is started to drive the end face gear 19 to rotate, the end face gear 19 drives the fixed gear 17 to rotate, thereby realizing the rotation of the rotating shaft 15 and the stirring blade 16.

[0036] In this technical solution, the reflux mechanism includes a water pump 12 and a water suction pipe 13. The water pump 12 is fixedly connected to the side wall of the box body 1. The water pump 12 is fixedly connected to two water suction pipes 13 respectively. One water suction pipe 13 is connected through the top of the box body 1, and the other water suction pipe 13 is connected through the bottom of the filter box 9. And the other side of the filter box 9 is fixedly connected to a sewage pipe 10. When the water pump 12 is started, the phosphoric acid in the filter box 9 is re-transported into the box body 1 through the water suction pipe 13, realizing the impurity removal treatment inside the box body 1.

[0037] In this technical solution, the impurity removal mechanism includes a cover plate 24. The cover plate 24 is rotatably connected to the top surface of the frame plate 3. The number of the cover plates 24 is two. When the cover plates 24 rotate, both of the two cover plates 24 are lapped on both sides of the cross plate 4, and the two cover plates 24 are symmetrically distributed on both sides of the bottom plate 14 and the guide rod 5. After the cover plate 24 is closed, its edge can be attached to the surfaces of the frame plate 3 and the cross plate 4, thereby realizing the sealing above the cover plate 24 and reducing the problem of excessive loss of phosphoric acid during sewage discharge.

[0038] In this technical solution, the traction mechanism includes a winding motor 21. The winding motor 21 is fixedly installed in the middle of the box body 1. The output end of the winding motor 21 is fixedly connected to a winding wheel 22. Two pulling ropes 23 with opposite winding directions are arranged on the surface of the winding wheel 22, and each pulling rope 23 is fixedly connected to the top of the cover plate 24. When the winding motor 21 works, it drives the winding wheel 22 to rotate, thereby winding the pulling rope 23 onto the surface of the winding wheel 22. The cover plate 24 is pulled by the pulling rope 23 to rotate towards the vertical position. At this time, the cover plate 24 is separated from the rotating rod 8. While resetting it, the plug 6 moves back into the communicating pipe 20 to realize sealing. At this time, an adsorbent is added through the feeding pipe 26 for impurity removal treatment.

[0039] In this technical solution, a guide wheel 25 is rotatably connected to the top of the box body 1. The pulling rope 23 is arranged on the surface of the guide wheel 25, and the pulling rope 23 is inserted through the top of the box body 1. A feeding pipe 26 is connected through the side wall of the box body 1. The smooth traction of the pulling rope 23 can be realized through the guide wheel 25, facilitating the rotation of the cover plate 24.

[0040] The present utility model is not limited to the above-described embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A comprehensive impurity removal device for wet-process phosphoric acid, characterized in that: include: A box body (1), the box body (1) is fixedly mounted on the top of the base (2), the interior of the box body (1) is fixedly connected to the frame plate (3), the middle of the frame plate (3) is fixedly connected to the transverse plate (4), and a blocking mechanism is provided in the middle of the transverse plate (4), and a mixing mechanism is fixedly mounted on the top of the box body (1); A filter box (9), the filter box (9) is fixedly connected to the bottom of the base (2), the interior of the filter box (9) is fixedly connected to the filter plate (11), one side of the filter plate (11) is provided with a reflux mechanism connected to the box body (1), and the interior of the box body (1) is provided with a debris removal mechanism, the debris removal mechanism is arranged above the frame plate (3), and the debris removal mechanism is transmission-connected to the traction mechanism.

2. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 1, characterized in that: The frame plate (3) is a square hollow structure. The frame plate (3) is located at the bottom of the box body (1). The bottom of the box body (1) located inside the frame plate (3) is rotatably connected to the rotating rod (8). The number of the rotating rods (8) is two, and the two rotating rods (8) are symmetrically distributed on both sides of the horizontal plate (4).

3. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 1, characterized in that: The blocking mechanism comprises a guide rod (5) and a connecting pipe (20); the guide rod (5) is inserted through the middle of the horizontal plate (4); the bottom of the guide rod (5) is fixedly connected to a blocking block (6); and the top of the blocking block (6) is fixedly connected to a connecting plate (7); the connecting pipe (20) is respectively connected through the middle of the box body (1) and the base (2), and the blocking block (6) extends to the inside of the connecting pipe (20).

4. A comprehensive impurity removal device for wet-process phosphoric acid as claimed in claim 2, characterized in that: The rotating rod (8) is a bent structure, the top of the rotating rod (8) extends above the frame plate (3), and the other end of the rotating rod (8) extends below the connecting plate (7).

5. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 1, characterized in that: The mixing mechanism comprises a bottom plate (14), the bottom plate (14) is fixedly connected to the inside of the box body (1), the top of the box body (1) and the bottom plate (14) are rotatably connected to two ends of a rotating shaft (15), the two ends of the rotating shaft (15) are fixedly connected to a stirring blade (16) and a fixed gear (17), and the transverse plate (4) is located between two cover plates (24).

6. A comprehensive impurity removal device for wet-process phosphoric acid as claimed in claim 5, characterized in that: A stirring motor (18) is fixedly mounted on the side wall of the box body (1), the output end of the stirring motor (18) is fixedly connected to an end face gear (19), and the end face gear (19) is meshingly connected to a fixed gear (17).

7. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 1, characterized in that: The reflux mechanism comprises a water pump (12) and a water pumping pipe (13); the water pump (12) is fixedly connected to the side wall of the box body (1); the water pump (12) is fixedly connected to two water pumping pipes (13), one of which is connected through the top of the box body (1); the other of which is connected through the bottom of the filter box (9); and the other side of the filter box (9) is fixedly connected to a sewage discharge pipe (10).

8. A comprehensive impurity removal device for wet-process phosphoric acid as claimed in claim 1, characterized in that: The impurity removal mechanism comprises a cover plate (24), the cover plate (24) being rotatably connected to the top surface of the frame plate (3), the number of the cover plates (24) being two, and when the cover plates (24) rotate, the two cover plates (24) are overlapped with both sides of the transverse plate (4), and the two cover plates (24) are symmetrically distributed on both sides of the bottom plate (14) and the guide rod (5).

9. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 1, characterized in that: The traction mechanism comprises a winding motor (21), the winding motor (21) is fixedly mounted to the middle of the box body (1), the output end of the winding motor (21) is fixedly connected to a winding wheel (22), the surface of the winding wheel (22) is provided with two pull ropes (23) with opposite winding directions, and each pull rope (23) is fixedly connected to the top of the cover plate (24).

10. A comprehensive impurity removal device for wet-process phosphoric acid according to claim 9, characterized in that: The top of the box body (1) is rotatably connected to a guide wheel (25), a pull rope (23) is provided on the surface of the guide wheel (25), and the pull rope (23) is inserted through the top of the box body (1), and a feeding pipe (26) is inserted through the side wall of the box body (1).

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