Purification device for efficient defluorination and dephosphorization of phosphogypsum

Abstract

The purification device comprises a first box body, a reciprocating motion device is arranged on the outer wall of one side of the first box body, one end of the reciprocating motion device is fixedly connected with one end of a transverse rod, and the other end of the transverse rod is rotationally connected with one end of a vertical rod through a rotating shaft; the other end of the vertical rod is rotationally connected with one end of a screen through a rotating shaft, and the other end of the screen is rotationally connected with the inner wall of the first box through a rotating shaft. According to the purification device for efficient defluorination and dephosphorization of ardealite, through structures such as the first box body, the feeding opening, the frame body, the first gear motor, a guide rail, a first guide rod, a second guide rod, a cross rod, a vertical rod, a supporting frame, a guide groove and a discharging opening, swinging of a screen is achieved, the treatment process is accelerated, calcium hydroxide raw materials are evenly discharged, the raw materials are not prone to being stacked together, and the service life of the raw materials is prolonged. And the treatment effect is not affected, large-particle raw materials obtained through screening are convenient to collect, and the screen is not prone to being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of purification treatment, and in particular to a purification device for efficient defluorination and dephosphorization of phosphogypsum. Background Art

[0002] Phosphogypsum is a byproduct containing phosphorus and sulfur, usually produced during the processing of phosphate ores. It is produced in phosphate fertilizer production, industrial processing and other processes, and often contains harmful heavy metals and radioactive elements. Phosphogypsum is usually off-white or light yellow in powder or granular form. Phosphogypsum is usually regarded as a waste, but it can also be turned into a resource through proper treatment and utilization. Phosphogypsum has a variety of uses, such as construction materials, soil conditioners, raw materials for cement production, etc. However, since it contains phosphorus and sulfur, as well as potential radioactive elements and heavy metals, it is very important to treat and purify phosphogypsum. For the treatment of phosphogypsum, common methods include defluorination and dephosphorization purification treatment, resource utilization, recycling, etc.

[0003] At present, when phosphogypsum is subjected to defluorination and phosphorus removal purification treatment, chemical precipitation method, ion exchange method, crystallization method, biological adsorption method and membrane separation technology are mostly used. Although the above treatment methods can effectively purify the fluoride and phosphate ions in phosphogypsum. However, the existing purification device is too single in functionality. For example, when using the chemical precipitation method, most of the gypsum solution and calcium hydroxide are directly put into the sedimentation tank for a period of precipitation to obtain the treated solution. This purification treatment efficiency is slow, and the staff is required to clean the sediment inside the sedimentation tank later. The purification effect of the biological adsorption method is slower, the contact area between the solution and the biological adsorbent is small, and the contact time is short, which easily leads to poor purification effect of phosphate ions and fluoride in the phosphogypsum solution. In addition, when the current purification device is used, the calcium hydroxide raw material is not evenly fed, so that the raw materials are easy to pile up together, affecting the treatment effect, and the processed raw materials with larger particles are not easy to collect, the screen is easy to clog, and the applicability is poor. Summary of the invention

[0004] The object of the present invention is to provide a purification device for efficient defluorination and dephosphorization of phosphogypsum to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a purification device for efficient defluorination and dephosphorization of phosphogypsum, comprising a first box, wherein a reciprocating motion device is provided on one side outer wall of the first box;

[0006] One end of the reciprocating motion device is fixedly connected to one end of a horizontal rod, the other end of the horizontal rod is rotatably connected to one end of a vertical rod via a rotating shaft, the other end of the vertical rod is rotatably connected to one end of a screen via a rotating shaft, and the other end of the screen is rotatably connected to the inner wall of the first box body via a rotating shaft;

[0007] A feed port is provided on one side of the top of the first box body, a discharge port is provided on one side of the outer wall of the first box body, a second box body is provided on one side of the first box body, and a third box body is provided on one side of the second box body;

[0008] A second suction fan is connected to the right inner cavity of the second box body, the right side of the second suction fan passes through the inner cavity of the third box body and extends into the middle inner cavity of the third box body, a nozzle is installed at the top of the inner cavity of the second box body, and a water pump is installed at the top of the center position of the second box body, one end of the water pump is connected with the nozzle pipe, and the other end of the water pump is connected with one end of a water pipe, the water pipe passes through the right top outer wall of the second box body and extends into the right bottom of the inner cavity of the third box body, an inlet valve is screwed on the right top outer wall of the third box body, a discharge valve is screwed on the right center outer wall of the third box body, and a water outlet valve is screwed on the right bottom outer wall of the third box body, and the bottom end of the connection between the second box body and the third box body is connected.

[0009] Preferably, the reciprocating motion device comprises a frame, a first reduction motor, a gear, a guide rail, a first guide rod, a second guide rod and a crossbar;

[0010] A frame is provided on one side outer wall of the first box body, and a first reduction motor is bolted to the outer wall of the frame. A gear is provided at the output end of the first reduction motor through the frame, and a guide rail is meshed on the outer wall of the gear. The top end of the guide rail is fixedly connected to a first guide rod, and the bottom end of the guide rail is fixedly connected to a second guide rod, and the top end of the inner outer wall of the guide rail is fixedly connected to one end of the cross bar.

[0011] Preferably, the gear is a half gear, and the inner wall of the guide rail is provided with teeth, and the inner wall of the guide rail is meshed with the gear through the teeth.

[0012] Preferably, the cross-sections of the first guide rod and the second guide rod are polygonal, and the cross-sections are at least triangular.

[0013] Preferably, the outer wall of the screen is provided with a supporting frame.

[0014] Preferably, the screen is arranged obliquely, and a lower end of the screen passes through the first box body and communicates with the outside.

[0015] Preferably, a material guide trough is provided at the lower end of the screen that passes through the first box body, and the material guide trough is fixedly connected to the first box body.

[0016] Preferably, one side of the second suction fan extends into the inner cavity of the third box body through a conduit.

[0017] Preferably, a material guiding pipe is provided on one side of the first box body, the first box body is connected with the second box body through the material guiding pipe, a material guiding pump is provided on the outer side of the material guiding pipe, and the material guiding pump is fixedly connected to the first box body.

[0018] Preferably, the first box, the second box and the third box are all rectangular boxes.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The purification device for efficient defluorination and dephosphorization of phosphogypsum realizes the swing of the screen through the first box body, the feed inlet, the frame body, the first reduction motor, the guide rail, the first guide rod, the second guide rod, the cross bar, the vertical bar, the support frame, the guide trough, the discharge port and other structures, so as to accelerate the processing process, and the calcium hydroxide raw material is discharged evenly, so that the raw materials are not easy to pile up together, and the processing effect is not affected. The raw materials with larger particles screened out are easy to collect, and the screen is not easy to be blocked.

[0021] 2. The purification device for efficient defluorination and phosphorus removal of phosphogypsum achieves full mixing of raw materials and treatment agent through structures such as the material guide pipe, the material guide pump, the second box, the nozzle, the water pump, the water pipe, the second suction fan, the conduit, the third box, the water inlet valve, the discharge valve, the water outlet valve, the gear, the screen and the like, so that the treatment effect is more ideal, the treatment agent can be repeatedly used, and the treatment agent is easy to replace, the structure is simple, and the beneficial effect is obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a front cross-sectional view of the present invention;

[0024] Figure 3 It is a front view of the present invention;

[0025] Figure 4 It is a right side cross-sectional view of the frame structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the screen structure of the present invention.

[0027] In the figure: 1. first box body, 2. feed port, 3. frame body, 4. first reduction motor, 5. guide rail, 6. first guide rod, 7. second guide rod, 8. cross bar, 9. vertical rod, 10. support frame, 11. material guide trough, 12. discharge port, 13. material guide pipe, 14. material guide pump, 15. second box body, 16. nozzle, 17. water pump, 18. water pipe, 19. second suction fan, 20. conduit, 21. third box body, 22. water inlet valve, 23. discharge valve, 24. water outlet valve, 25. gear, 26. screen. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-5 , the present invention provides a technical solution: a purification device for efficient defluorination and dephosphorization of phosphogypsum, comprising a first box body 1, and a reciprocating motion device is arranged on one side outer wall of the first box body 1;

[0030] One end of the reciprocating motion device is fixedly connected to one end of a cross bar 8, and the other end of the cross bar 8 is rotatably connected to one end of a vertical bar 9 through a rotating shaft, and the other end of the vertical bar 9 is rotatably connected to one end of a screen 26 through a rotating shaft. The guide rail 5 reciprocates up and down through the cross bar 8 and the vertical bar 9 to vibrate the screen 26, and the other end of the screen 26 is rotatably connected to the inner wall of the first box body 1 through a rotating shaft. A support frame 10 is provided on the outer wall of the screen 26, and the screen 26 is tilted, and the lower end of the screen 26 passes through the first box body 1 and is connected to the outside, and a material guide trough 11 is provided at the lower end of the screen 26 that passes through the first box body 1, and the material guide trough 11 is fixedly connected to the first box body 1;

[0031] A feed port 2 is provided on one side of the top of the first box body 1, a discharge port 12 is provided on one side of the outer wall of the first box body 1, a second box body 15 is provided on one side of the first box body 1, and a third box body 21 is provided on one side of the second box body 15. The first box body 1, the second box body 15 and the third box body 21 are all rectangular boxes;

[0032] A second suction fan 19 is clamped in the right inner cavity of the second box 15. One side of the second suction fan 19 extends into the inner cavity of the third box 21 through a conduit 20. The right side of the second suction fan 19 passes through the inner cavity of the third box 21 and extends into the middle inner cavity of the third box 21. A nozzle 16 is installed at the top of the inner cavity of the second box 15. Filtered water is sprayed to the material through the nozzle 16 to dissolve fluorine and phosphorus in the phosphogypsum in the liquid filler filtrate. A water pump 17 is installed at the top of the center of the second box 15. The water pump 17 sucks filtered water with a liquid filler catalyst inside the third box 21. One end of the water pump 17 is connected to the nozzle 16. The water pump 1 The other end of the pipe 7 is connected to one end of a water pipe 18, the water pipe 18 passes through the outer wall of the right top end of the second box body 15, and extends into the bottom of the right inner cavity of the third box body 21. The outer wall of the right top end of the third box body 21 is screwed with an inlet valve 22, and liquid filler is added to the water inlet valve 22. A small amount of phosphorus and fluorine in the liquid is adsorbed by the filler. A discharge valve 23 is screwed on the outer wall at the right center position of the third box body 21, and the filtered phosphogypsum is discharged through the discharge valve 23, and the fluorine and phosphorus in the phosphogypsum can be recycled. A water outlet valve 24 is screwed on the outer wall of the right bottom end of the third box body 21, and the bottom end of the connection between the second box body 15 and the third box body 21 is connected.

[0033] As a preferred solution, further, the reciprocating motion device includes a frame 3, a first reduction motor 4, a gear 25, a guide rail 5, a first guide rod 6, a second guide rod 7 and a crossbar 8;

[0034] A frame 3 is provided on the outer wall of one side of the first box body 1, and the outer wall of the frame body 3 is bolted with a first reduction motor 4. The first reduction motor 4 rotates clockwise, and a gear 25 is provided on the output end of the first reduction motor 4 through the frame body 3. The first reduction motor 4 drives the gear 25 to rotate clockwise. The gear 25 is a half gear. The inner wall of the guide rail 5 is provided with teeth, and the inner wall of the guide rail 5 is meshed with the gear 25 through the teeth. The gear 25 rotates clockwise to drive the guide rail 5 to reciprocate up and down. The outer wall of the gear 25 is meshed with the guide rail 5. The top end of the guide rail 5 is fixedly connected with a first guide rod 6, and the bottom end of the guide rail 5 is fixedly connected with a second guide rod 7. The cross-sections of the first guide rod 6 and the second guide rod 7 are polygonal, and the cross-sections are at least triangular. The top end of the inner outer wall of the guide rail 5 is fixedly connected to one end of the cross bar 8. The guide rail 5 reciprocates up and down through the cross bar 8 and the vertical bar 9 to cause the screen 26 to vibrate.

[0035] As a preferred solution, further, a material guide pipe 13 is provided on one side of the first box body 1, and the first box body 1 is connected with the second box body 15 through the material guide pipe 13. A material guide pump 14 is provided on the outer side of the material guide pipe 13, and the material guide pump 14 is fixedly connected to the first box body 1. When the material guide pump 14 is started, the liquid is drawn into the interior of the material guide pipe 13 and enters the interior of the second box body 15. The second box body 15 can perform a heating function for heating treatment. At the same time, liquid filler is added to the water inlet valve 22, and a small amount of phosphorus and fluorine in the liquid is adsorbed by the filler.

[0036] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0037] When in use, the phosphogypsum solution is transported from the feed port 2 into the interior of the first box body 1 (sedimentation tank), and at the same time, an appropriate amount of calcium hydroxide is put into the interior of the first box body 1 (sedimentation tank). The raw materials will fall on the surface of the screen 26 through the feed port 2. The screen 26 can screen the raw materials. The raw materials with larger particles will be discharged through the guide trough 11 for easy collection. The raw materials that meet the particle size will be discharged downward through the screen 26. At this time, the first reduction motor 4 is rotated clockwise, and the first reduction motor 4 drives the gear 25 to rotate clockwise. The clockwise rotation of the gear 25 drives the guide rail 5 to reciprocate up and down. The reciprocating movement of the guide rail 5 causes the screen 26 to vibrate through the cross bar 8 and the vertical bar 9, thereby preventing the screen 26 from being blocked, thereby improving the processing efficiency. At the same time, the guide pump 14 is started so that the liquid is The liquid is drawn into the feed guide pipe 13 and enters the second box 15. The second box 15 can perform a heating function to perform a heating treatment. At the same time, a liquid filler is added to the water inlet valve 22. A small amount of phosphorus and fluorine in the liquid is adsorbed by the filler. At this time, the water pump 17 sucks filtered water with a liquid filler catalyst into the third box 21, and sprays the filtered water to the material through the nozzle 16 to dissolve the fluorine and phosphorus in the phosphogypsum in the liquid filler filtrate. Since the second box 15 is connected to the bottom of the third box 21, the liquid filler filtered water can be recycled to filter the fluorine and phosphorus in the phosphogypsum, saving the liquid filler filtrate, so that the fluorine and phosphorus in the phosphogypsum are fully absorbed, and the filtered phosphogypsum is discharged through the discharge valve 23, which can be recycled to filter the fluorine and phosphorus in the phosphogypsum. The structure is simple and reasonable, and the beneficial effect is obvious.

[0038] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly specified and limited, the terms "snapping", "axial connection", "plug-in", "welding", "screwing" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A purification device for efficient defluorination and dephosphorization of phosphogypsum, comprising a first housing (1), characterized in that: A reciprocating motion device is provided on one side outer wall of the first box body (1); One end of the reciprocating motion device is fixedly connected to one end of a cross bar (8), the other end of the cross bar (8) is rotatably connected to one end of a vertical bar (9) via a rotating shaft, the other end of the vertical bar (9) is rotatably connected to one end of a screen (26) via a rotating shaft, and the other end of the screen (26) is rotatably connected to the inner wall of the first box body (1) via a rotating shaft; A feed port (2) is provided on one side of the top of the first box body (1), a discharge port (12) is provided on one side of the outer wall of the first box body (1), a second box body (15) is provided on one side of the first box body (1), and a third box body (21) is provided on one side of the second box body (15); The right inner cavity of the second box (15) is clamped with a second suction fan (19), the right side of the second suction fan (19) passes through the inner cavity of the third box (21) and extends into the middle inner cavity of the third box (21), a nozzle (16) is installed at the top of the inner cavity of the second box (15), a water pump (17) is installed at the top of the center position of the second box (15), one end of the water pump (17) is pipe-connected to the nozzle (16), and the other end of the water pump (17) is pipe-connected to a water pipe (18). ), the water pipe (18) penetrates the outer wall of the right top end of the second box body (15) and extends into the bottom of the right inner cavity of the third box body (21); the outer wall of the right top end of the third box body (21) is screwed with a water inlet valve (22); the outer wall of the right center position of the third box body (21) is screwed with a discharge valve (23); the outer wall of the right bottom end of the third box body (21) is screwed with a water outlet valve (24); the bottom ends of the connection between the second box body (15) and the third box body (21) are connected.

2. A purification device for efficient defluorination and dephosphorization of phosphogypsum according to claim 1, characterized in that: The reciprocating motion device comprises a frame (3), a first reduction motor (4), a gear (25), a guide rail (5), a first guide rod (6), a second guide rod (7) and a crossbar (8); A frame (3) is provided on one side outer wall of the first box body (1), and a first reduction motor (4) is bolted to the outer wall of the frame body (3); a gear (25) is provided at the output end of the first reduction motor (4) passing through the frame body (3); a guide rail (5) is meshed with the outer wall of the gear (25); a first guide rod (6) is fixedly connected to the top end of the guide rail (5); a second guide rod (7) is fixedly connected to the bottom end of the guide rail (5); and the top end of the inner outer wall of the guide rail (5) is fixedly connected to one end of the cross bar (8).

3. A purification device for efficient defluorination and dephosphorization of phosphogypsum according to claim 2, characterized in that: The gear (25) is a half gear, and the inner wall of the guide rail (5) is provided with teeth, and the inner wall of the guide rail (5) is meshed with the gear (25) through the teeth.

4. A purification device for efficient defluorination and dephosphorization of phosphogypsum according to claim 2, characterized in that: The cross-sections of the first guide rod (6) and the second guide rod (7) are polygonal, and the cross-sections are at least triangular.

5. The purification device for efficient defluorination and phosphorus removal of phosphogypsum according to claim 1, characterized in that: The outer wall of the screen (26) is provided with a supporting frame (10).

6. The purification device for efficient defluorination and phosphorus removal of phosphogypsum according to claim 1, characterized in that: The screen (26) is arranged at an angle, and the lower end of the screen (26) passes through the first box (1) and communicates with the outside.

7. A purification device for efficient defluorination and dephosphorization of phosphogypsum according to claim 6, characterized in that: A material guide trough (11) is provided at the lower end of the screen (26) penetrating through the first box body (1), and the material guide trough (11) is fixedly connected to the first box body (1).

8. The purification device for efficient defluorination and phosphorus removal of phosphogypsum according to claim 1, characterized in that: One side of the second suction fan (19) extends into the inner cavity of the third box body (21) through a conduit (20).

9. The purification device for efficient defluorination and phosphorus removal of phosphogypsum according to claim 1, characterized in that: A material guide pipe (13) is provided on one side of the first box body (1), and the first box body (1) is connected to the second box body (15) through the material guide pipe (13). A material guide pump (14) is provided on the outside of the material guide pipe (13), and the material guide pump (14) is fixedly connected to the first box body (1).

10. The purification device for efficient defluorination and phosphorus removal of phosphogypsum according to claim 1, characterized in that: The first box (1), the second box (15) and the third box (21) are all rectangular boxes.

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