A comprehensive utilization equipment for phosphogypsum

Abstract

The invention discloses a phosphogypsum comprehensive utilization device, relates to the technical field of phosphogypsum processing, and comprises: a machine body, wherein the machine body consists of a precipitation chamber and a crystallization chamber, the precipitation chamber is located above the crystallization chamber, a stirring component is arranged in the precipitation chamber, a crystallization component is arranged in the crystallization chamber, the precipitation chamber is connected with the crystallization chamber, phosphogypsum and acid solution are transported to the precipitation chamber through a feed port, and then the stirring component immediately stirs the phosphogypsum and the acid solution to make them fully react and dissolve, after a period of reaction, a controller controls the stirring component to stop, and at this time, the insoluble matter and undissolved phosphogypsum in the precipitation chamber are waited for precipitation, and then the solution is transported to the crystallization chamber, after the solution is transported to the crystallization chamber, the controller controls the crystallization component to evaporate and crystallize the solution, and finally the superphosphate produced by the crystallization is output through a crystallization port, while the insoluble matter and undissolved phosphogypsum are output through a discharge port.

Description

Technical Field

[0001] The invention relates to the technical field of phosphogypsum processing, in particular to a phosphogypsum comprehensive utilization device. Background Art

[0002] Phosphogypsum is an industrial waste residue generated during the production of wet phosphoric acid. The soluble phosphorus, fluorine and other impurities in phosphogypsum have adverse effects on the performance of phosphogypsum building materials, such as prolonged gypsum setting time, reduced hardened body strength, loose crystal structure, etc., and its high moisture content leads to poor quality, low added value and short market transportation radius of phosphogypsum building materials. In addition, almost all impurities in phosphogypsum enter the solid product, resulting in fine particles of the obtained calcium carbonate product, poor purity and whiteness, low added value, and difficult to use on a large scale.

[0003] In the process of preparing superphosphate from existing phosphogypsum, the steps of dissolution, precipitation and crystallization are usually adopted. However, in the process of crystallization, the solution is usually placed in a container for crystallization in large quantities, which makes the crystallization time longer and reduces the efficiency of crystallization. Summary of the invention

[0004] The object of the present invention is to provide a phosphogypsum comprehensive utilization device to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A phosphogypsum comprehensive utilization device comprises: a machine body, wherein the machine body consists of a precipitation chamber and a crystallization chamber, wherein the precipitation chamber is located above the crystallization chamber, wherein a stirring assembly is arranged in the precipitation chamber, wherein a crystallization assembly is arranged in the crystallization chamber, wherein the precipitation chamber is connected to the crystallization chamber, wherein a feed port and a discharge port are arranged in the precipitation chamber, and wherein a crystallization port is arranged in the crystallization chamber.

[0007] The phosphogypsum and acid solution are transported to the precipitation chamber through the feed port, and then the controller controls the stirring component to start, and the stirring component immediately stirs the phosphogypsum and the acid solution to allow them to fully react and dissolve. After a period of reaction, the controller controls the stirring component to stop, and then wait for the insoluble matter and undissolved phosphogypsum in the precipitation chamber to precipitate, and then the solution is transported to the crystallization chamber. After the solution is transported to the crystallization chamber, the controller controls the crystallization component to start, and the crystallization component immediately evaporates and crystallizes the solution. Finally, the superphosphate produced by the crystallization is output through the crystallization port, and the insoluble matter and undissolved phosphogypsum are output through the discharge port.

[0008] Preferably, a conical block is provided on one side of the precipitation chamber close to the crystallization chamber, and the stirring assembly comprises: a rotating column, which passes through the precipitation chamber and the crystallization chamber in sequence, a No. 1 motor is provided on the top of the body, and the driving shaft of the No. 1 motor is connected to the rotating column, and a plurality of rotating plates are provided on one side of the rotating column located in the precipitation chamber.

[0009] Preferably, the rotating plate consists of a fixed plate and a sliding plate, the fixed plate is connected to the rotating column, a sliding groove is arranged on the fixed plate, a slider is arranged on the sliding plate, the sliding plate is slidingly connected to the sliding groove through the slider, the fixed plate and the sliding plate are both grid plates, and an electromagnetic spring is arranged between the bottom of the slider and the sliding groove.

[0010] Preferably, a delivery pipe is provided inside the rotating column, an input port is provided at one end of the delivery pipe close to the precipitation chamber, an output port is provided at one side of the delivery pipe close to the crystallization chamber, and a plurality of connecting channels are provided between the precipitation chamber and the crystallization chamber, one end of the connecting channel is connected to the output port of the delivery pipe, and the other end of the connecting channel is connected to the crystallization chamber.

[0011] Preferably, a cam is provided on one side of the rotating column close to the crystallization chamber, and a plurality of rotating groups are provided on the top of the crystallization chamber. The rotating groups are composed of a support plate and a rotating shaft. A torsion spring is provided on the rotating shaft, and an impact rod is connected to the rotating shaft.

[0012] The phosphogypsum and acid solution are input into the precipitation chamber through the feed port. The electromagnetic spring in the slide is first controlled to be energized. After the electromagnetic spring is energized, it is attracted, so that the sliding plate moves along the slide to the side close to the conical block, and then the sliding plate contacts the conical block. Then the controller controls the No. 1 motor to start, and the driving shaft of the No. 1 motor drives the rotating column to rotate. During the rotation of the rotating column, the rotating column drives the rotating plate to rotate, so that the fixed plate and the sliding plate make a revolution around the axis of the rotating column. Since the fixed plate and the sliding plate are both grid plates, the phosphogypsum and the acid solution are stirred in the gap between the fixed plate and the sliding plate. When the rotating plate rotates, the heat generated by the electromagnetic spring being energized will also be transferred to the precipitation chamber, which accelerates the speed of the dissolution reaction of the phosphogypsum and the acid solution.

[0013] During the dissolution reaction stage, the crystallization plate is in a closed state, and during the rotation of the rotating column, the rotating column drives the cam to rotate. When the cam rotates, it encounters the impact rod, and the cam pushes the impact rod. The side of the impact rod close to the cam deflects toward the rotating ring, and the side of the impact rod away from the cam deflects toward the side away from the crystallization plate. Since a torsion spring is provided on the rotating shaft of the rotating group, when the cam is detached from the impact rod, the impact rod is reset under the action of the torsion spring. During the resetting process, the impact rod is under the influence of the torsion spring force, and the end of the impact rod close to the crystallization plate hits the crystallization plate. The vibration generated by the impact is transmitted to the precipitation chamber through the machine body, further promoting the dissolution reaction of phosphogypsum and acid solution, and improving the rate of the dissolution reaction of phosphogypsum and acid solution. The quality of the dissolution reaction of phosphogypsum and acid solution is improved by combining vibration with heating.

[0014] When the dissolution reaction is completed, the controller controls the electromagnetic spring in the slide to cut off the power. At this time, the electromagnetic spring loses its magnetic attraction after being powered off, and then the electromagnetic spring resets under the action of elastic force, and the electromagnetic spring drives the slider to move to the side away from the conical block, and the slider drives the sliding plate to separate from the conical block, so that the sliding plate shrinks into the fixed plate, and then the insoluble matter and undissolved phosphogypsum are precipitated on the side of the precipitation chamber close to the conical block, so that the stratification height of the solution is at the same height as the input port of the conveying pipe, avoiding the subsequent solid matter from being transported to the crystallization chamber during the solution transportation process, thereby affecting the crystallization quality.

[0015] Preferably, the crystallization assembly includes: a rotating ring, which is rotatably connected to the machine body, a No. 2 motor is arranged in the machine body, a transmission wheel is arranged on the driving shaft of the No. 2 motor, the transmission wheel is in friction contact with the outer wall of the rotating ring, a plurality of water flow grooves are arranged on the inner wall of the rotating ring, the water flow grooves are connected with the connecting channel, and an electromagnetic valve and a flow sensor are arranged in the water flow groove.

[0016] Preferably, a plurality of rotating grooves are provided at the bottom of the water flow trough, a crystallization plate is rotatably connected in the rotating groove, the crystallization plate is rotatably connected to the rotating groove, a plurality of the crystallization plates are combined into a semi-elliptical cavity, a sealing strip is provided between two adjacent crystallization plates, and an electric heating wire is provided in the crystallization plate.

[0017] Preferably, a plurality of impact grooves are provided on the inner wall of the crystallization chamber, the impact grooves correspond to the crystallization plates one by one, electromagnets are provided in the impact grooves, and magnets are provided in the crystallization plates.

[0018] In the precipitation stage, the controller controls the No. 1 motor to stop, so that the rotating column stops rotating, and the cam also stops pushing the impact rod. After a period of precipitation, the solution and the insoluble substances and the undissolved phosphogypsum are separated into layers, and the controller controls the input port to open. The solution in the precipitation chamber is then transported to the delivery pipe through the input port, flows from the output port to the connecting channel through the delivery pipe, and is transported to the flow tank through the connecting channel. At this time, the controller controls the electromagnet in the impact tank to pass reverse electricity, so that the electromagnet in the impact tank has the same magnetic pole on the opposite side of the magnet in the crystallization plate, and then the electromagnet and the magnet repel each other, so that the crystallization plate is in a state of contact with each other, forming a closed semi-elliptical cavity;

[0019] Then the controller first controls the electromagnetic valve in the water flow tank to open, and the flow sensor monitors the flow of the output solution. When the flow reaches the specified flow, the controller controls the electromagnetic valve to close, and the solution flows along the side of the crystallization plate. Then the controller controls the No. 2 motor to start, and the driving shaft of the No. 2 motor drives the transmission wheel to rotate. The transmission wheel is in friction contact with the rotating ring, so that the rotating ring rotates under the action of the transmission wheel. While the rotating ring rotates, the controller controls the electric heating wire to energize. During the rotation of the rotating ring, several crystallization plates are driven to rotate. When the crystallization plate rotates, the solution is driven to rotate. The solution is adsorbed on the inner wall of the crystallization plate under the action of centrifugal force. Since the electric heating wire generates heat, the temperature on the inner wall of the crystallization plate increases, and then the solution adsorbed on the crystallization plate is quickly evaporated and crystallized. Then, by inputting the solution in small amounts and multiple times, the evaporation and crystallization time of the solution is shortened, and the efficiency of superphosphate crystallization is improved.

[0020] When the crystallization is completed, the controller first controls the No. 2 motor to stop, and then controls the electromagnet in the impact groove to pass positive electricity, so that the magnetic poles of the electromagnet and the magnet on the opposite side are opposite, and then the electromagnet attracts the crystallization plate, and then the crystallization plate hits the impact groove, and then the vibration generated by the collision shakes off the superphosphate on the inner wall of the crystallization plate, and the superphosphate crystals are output through the crystallization port, and the vibration will also be transmitted to the precipitation chamber through the body, further precipitating the insoluble matter and undissolved phosphogypsum, improving the solution stratification effect and the precipitation effect.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. In the dissolution reaction stage, the crystallization plate is in a closed state, and during the rotation of the rotating column, the rotating column drives the cam to rotate. When the cam rotates, it encounters the impact rod, and the cam pushes the impact rod. The side of the impact rod close to the cam deflects toward the rotating ring, and the side of the impact rod away from the cam deflects toward the side away from the crystallization plate. Since a torsion spring is provided on the rotating shaft of the rotating group, when the cam is detached from the impact rod, the impact rod is reset under the action of the torsion spring. During the resetting process, the impact rod is under the influence of the torsion spring force, and the end of the impact rod close to the crystallization plate hits the crystallization plate. The vibration generated by the impact is transmitted to the precipitation chamber through the machine body, which further promotes the dissolution reaction of phosphogypsum and acid solution, increases the rate of the dissolution reaction of phosphogypsum and acid solution, and improves the quality of the dissolution reaction of phosphogypsum and acid solution by combining vibration and heating.

[0023] 2. When the crystallization is completed, the controller first controls the No. 2 motor to stop, and then controls the electromagnet in the impact groove to pass positive electricity. The magnetic poles of the electromagnet and the magnet on the opposite side are opposite, and the electromagnet attracts the crystallization plate, and the crystallization plate hits the impact groove. The vibration generated by the impact shakes off the superphosphate on the inner wall of the crystallization plate, and the superphosphate crystals are output through the crystallization port, and the vibration will also be transmitted to the precipitation chamber through the body, further precipitating the insoluble matter and undissolved phosphogypsum, improving the solution stratification effect and the precipitation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the internal structure of the present invention;

[0025] Figure 2 It is an internal front view of the present invention;

[0026] Figure 3 It is a schematic diagram of the structure when the crystal plate is in a closed state;

[0027] Figure 4 It is a structural schematic diagram when the crystallization plate is in an open state;

[0028] Figure 5 It is a schematic diagram of the structure of the impact rod when viewed from above;

[0029] Figure 6 is a schematic diagram of the structure of the rotating plate;

[0030] Figure 7 for Figure 6 The enlarged view of point A in the middle;

[0031] Figure 8 It is a schematic diagram of the structure of the rotating group and the impact rod;

[0032] In the figure: 1, machine body; 11, precipitation chamber; 12, crystallization chamber; 13, cone block; 14, connecting channel;

[0033] 2. stirring assembly; 21. rotating column; 22. rotating plate; 23. fixed plate; 24. sliding plate; 25. conveying pipe; 26. cam; 27. rotating group; 28. impact rod;

[0034] 3. Crystallization assembly; 31. Rotating ring; 32. Water flow trough; 33. Crystallization plate; 34. Impact trough. DETAILED DESCRIPTION

[0035] 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.

[0036] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution for comprehensive utilization equipment of phosphogypsum, including: a body 1, wherein the body 1 is composed of a precipitation chamber 11 and a crystallization chamber 12, wherein the precipitation chamber 11 is located above the crystallization chamber 12, wherein a stirring component 2 is arranged in the precipitation chamber 11, wherein a crystallization component 3 is arranged in the crystallization chamber 12, wherein the precipitation chamber 11 is connected to the crystallization chamber 12, wherein a feed port and a discharge port are arranged in the precipitation chamber 11, wherein a crystallization port is arranged in the crystallization chamber 12.

[0037] As a specific embodiment of the present invention, a conical block 13 is provided on one side of the precipitation chamber 11 close to the crystallization chamber 12, and the stirring assembly 2 includes: a rotating column 21, and the rotating column 21 passes through the precipitation chamber 11 and the crystallization chamber 12 in sequence. A No. 1 motor is provided on the top of the body 1, and the driving shaft of the No. 1 motor is connected to the rotating column 21. A plurality of rotating plates 22 are provided on one side of the rotating column 21 located in the precipitation chamber 11.

[0038] As a specific embodiment of the present invention, the rotating plate 22 is composed of a fixed plate 23 and a sliding plate 24, the fixed plate 23 is connected to the rotating column 21, a sliding groove is provided on the fixed plate 23, a slider is provided on the sliding plate 24, the sliding plate 24 is slidably connected to the sliding groove through the slider, the fixed plate 23 and the sliding plate 24 are both grid plates, and an electromagnetic spring is provided between the bottom of the slider and the sliding groove.

[0039] As a specific embodiment of the present invention, a delivery pipe 25 is arranged inside the rotating column 21, an input port is arranged at one end of the delivery pipe 25 close to the precipitation chamber 11, an output port is arranged at one side of the delivery pipe 25 close to the crystallization chamber 12, and a plurality of connecting channels 14 are arranged between the precipitation chamber 11 and the crystallization chamber 12, one end of the connecting channel 14 is connected to the output port of the delivery pipe 25, and the other end of the connecting channel 14 is connected to the crystallization chamber 12.

[0040] As a specific embodiment of the present invention, a cam 26 is provided on the side of the rotating column 21 close to the crystallization chamber 12, and a plurality of rotating groups 27 are provided on the top of the crystallization chamber 12. The rotating group 27 is composed of a support plate and a rotating shaft. A torsion spring is provided on the rotating shaft, and an impact rod 28 is connected to the rotating shaft.

[0041] As a specific embodiment of the present invention, the crystallization component 3 includes: a rotating ring 31, the rotating ring 31 is rotatably connected to the body 1, a No. 2 motor is arranged in the body 1, a transmission wheel is arranged on the driving shaft of the No. 2 motor, the transmission wheel is in friction contact with the outer wall of the rotating ring 31, a plurality of water flow grooves 32 are arranged on the inner wall of the rotating ring 31, the water flow grooves 32 are connected to the connecting channel 14, and an electromagnetic valve and a flow sensor are arranged in the water flow groove 32.

[0042] As a specific embodiment of the present invention, a plurality of rotating grooves are provided at the bottom of the water flow groove 32, and a crystallization plate 33 is rotatably connected in the rotating groove. The crystallization plate 33 is rotatably connected to the rotating groove. A plurality of the crystallization plates 33 are combined into a semi-elliptical cavity, a sealing strip is provided between two adjacent crystallization plates 33, and an electric heating wire is provided in the crystallization plate 33.

[0043] As a specific embodiment of the present invention, a plurality of impact grooves 34 are provided on the inner wall of the crystallization chamber 12 , and the impact grooves 34 correspond to the crystallization plates 33 one by one. An electromagnet is provided in the impact groove 34 , and a magnet is provided in the crystallization plate 33 .

[0044] Working principle of the present invention:

[0045] The phosphogypsum and acid solution are input into the precipitation chamber 11 through the feed port. The electromagnetic spring in the chute is first controlled to be energized. After the electromagnetic spring is energized, it is attracted, so that the sliding plate 24 moves along the chute to the side close to the conical block 13, and then the sliding plate 24 contacts the conical block 13. Then the controller controls the No. 1 motor to start, and the driving shaft of the No. 1 motor drives the rotating column 21 to rotate. During the rotation of the rotating column 21, the rotating column 21 drives the rotating plate 22 to rotate, so that the fixed plate 23 and the sliding plate 24 revolve around the axis of the rotating column 21. Since the fixed plate 23 and the sliding plate 24 are both grid plates, the phosphogypsum and the acid solution are stirred in the gap between the fixed plate 23 and the sliding plate 24; while the rotating plate 22 rotates, the heat generated by the energization of the electromagnetic spring will also be transferred to the precipitation chamber 11, accelerating the speed of the dissolution reaction of the phosphogypsum and the acid solution;

[0046] During the dissolution reaction stage, the crystallization plate 33 is in a closed state, and during the rotation of the rotating column 21, the rotating column 21 drives the cam 26 to rotate. When the cam 26 rotates, it encounters the impact rod 28, and the cam 26 pushes the impact rod 28. The side of the impact rod 28 close to the cam 26 deflects toward the rotating ring 31, and the side of the impact rod 28 away from the cam 26 deflects toward the side away from the crystallization plate 33. Since a torsion spring is provided on the rotating shaft of the rotating group 27, when the cam 26 is separated from the impact rod 28, the impact rod 28 is reset under the action of the torsion spring. During the resetting process, under the influence of the torsion spring force, the impact rod 28 has an end close to the crystallization plate 33 that impacts the crystallization plate 33. The vibration generated by the impact is transmitted to the precipitation chamber 11 through the machine body 1, further promoting the dissolution reaction of the phosphogypsum and the acid solution.

[0047] When the dissolution reaction is finished, the controller controls the electromagnetic spring in the chute to be powered off. At this time, the electromagnetic spring loses its magnetic attraction after being powered off. Then, the electromagnetic spring is reset under the action of elastic force, and the electromagnetic spring drives the slider to move to the side away from the conical block 13, and the slider drives the sliding plate 24 to separate from the conical block 13, so that the sliding plate 24 shrinks into the fixed plate 23, and then the insoluble matter and the undissolved phosphogypsum are precipitated on the side of the precipitation chamber 11 close to the conical block 13, so that the stratification height of the solution is at the same height as the input port of the conveying pipe 25, thereby avoiding the subsequent solid matter being conveyed to the crystallization chamber 12 during the solution conveying process, thereby affecting the crystallization quality;

[0048] In the precipitation stage, the controller controls the No. 1 motor to stop, so that the rotating column 21 stops rotating, and the cam 26 also stops pushing the impact rod 28. After a period of precipitation, the solution and the insoluble substances and the undissolved phosphogypsum are separated into layers. The controller controls the input port to open, and the solution in the precipitation chamber 11 is then transported to the delivery pipe 25 through the input port, flows from the output port to the connecting channel 14 through the delivery pipe 25, and is transported to the water flow channel 32 through the connecting channel 14. At this time, the controller controls the electromagnet in the impact groove 34 to pass reverse electricity, so that the electromagnet in the impact groove 34 and the magnet in the crystallization plate 33 have the same magnetic pole on the opposite side, and then the electromagnet and the magnet repel each other, so that the crystallization plate 33 is in a state of contact with each other, forming a closed semi-elliptical cavity;

[0049] Then the controller first controls the electromagnetic valve in the water flow tank 32 to open, and the flow sensor monitors the flow of the output solution. When the flow reaches the specified flow, the controller controls the electromagnetic valve to close, and the solution flows along the side of the crystallization plate 33. Then the controller controls the No. 2 motor to start, and the driving shaft of the No. 2 motor drives the transmission wheel to rotate. The transmission wheel and the rotating ring 31 are in friction contact, so that the rotating ring 31 rotates under the action of the transmission wheel. While the rotating ring 31 rotates, the controller controls the electric heating wire to energize. During the rotation of the rotating ring 31, several crystallization plates 33 are driven to rotate. When the crystallization plate 33 rotates, the solution is driven to rotate. The solution is adsorbed on the inner wall of the crystallization plate 33 under the action of centrifugal force. Because the electric heating wire generates heat, the temperature on the inner wall of the crystallization plate 33 increases, and then the solution adsorbed on the crystallization plate 33 is quickly evaporated and crystallized, and then the time for evaporation and crystallization of the solution is shortened by inputting the solution in small amounts and multiple times.

[0050] When the crystallization is completed, the controller first controls the No. 2 motor to stop, and then controls the electromagnet in the impact groove 34 to pass positive electricity, so that the magnetic poles of the electromagnet and the magnet on the opposite side are opposite, and then the electromagnet attracts the crystallization plate 33, and then the crystallization plate 33 hits the impact groove 34, and then the vibration generated by the collision shakes off the superphosphate on the inner wall of the crystallization plate 33, and the superphosphate crystals are output through the crystallization port, and the vibration will also be transmitted to the precipitation chamber 11 through the body 1, so as to further precipitate the insoluble matter and undissolved phosphogypsum.

[0051] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A phosphogypsum comprehensive utilization device, characterized in that: include: A machine body (1), the machine body (1) comprising a precipitation chamber (11) and a crystallization chamber (12), the precipitation chamber (11) being located above the crystallization chamber (12), a stirring assembly (2) being arranged in the precipitation chamber (11), a crystallization assembly (3) being arranged in the crystallization chamber (12), the precipitation chamber (11) being connected to the crystallization chamber (12), a feed inlet and a discharge inlet being arranged in the precipitation chamber (11), and a crystallization inlet being arranged in the crystallization chamber (12); A conical block (13) is arranged on one side of the precipitation chamber (11) close to the crystallization chamber (12); the stirring assembly (2) comprises: a rotating column (21), the rotating column (21) sequentially passing through the precipitation chamber (11) and the crystallization chamber (12); a No. 1 motor is arranged on the top of the machine body (1); a driving shaft of the No. 1 motor is connected to the rotating column (21); and a plurality of rotating plates (22) are arranged on one side of the rotating column (21) located in the precipitation chamber (11); The rotating plate (22) is composed of a fixed plate (23) and a sliding plate (24), the fixed plate (23) is connected to the rotating column (21), a sliding groove is arranged on the fixed plate (23), a sliding block is arranged on the sliding plate (24), the sliding plate (24) is slidably connected to the sliding groove via the sliding block, the fixed plate (23) and the sliding plate (24) are both grid plates, and an electromagnetic spring is arranged between the bottom of the sliding block and the sliding groove; A cam (26) is arranged on one side of the rotating column (21) close to the crystallization chamber (12); a plurality of rotating groups (27) are arranged on the top of the crystallization chamber (12); the rotating groups (27) are composed of a support plate and a rotating shaft; a torsion spring is arranged on the rotating shaft; and a striking rod (28) is connected to the rotating shaft; A plurality of impact grooves (34) are arranged on the inner wall of the crystallization chamber (12), the impact grooves (34) correspond one to one with the crystallization plate (33), an electromagnet is arranged in the impact groove (34), and a magnet is arranged in the crystallization plate (33).

2. The phosphogypsum comprehensive utilization equipment according to claim 1, characterized in that: A delivery pipe (25) is arranged inside the rotating column (21); an input port is arranged at one end of the delivery pipe (25) close to the precipitation chamber (11); an output port is arranged at one side of the delivery pipe (25) close to the crystallization chamber (12); a plurality of connecting channels (14) are arranged between the precipitation chamber (11) and the crystallization chamber (12); one end of the connecting channel (14) is connected to the output port of the delivery pipe (25); and the other end of the connecting channel (14) is connected to the crystallization chamber (12).

3. The phosphogypsum comprehensive utilization equipment according to claim 1, characterized in that: The crystallization assembly (3) comprises: a rotating ring (31), the rotating ring (31) is rotatably connected to the machine body (1), a No. 2 motor is arranged inside the machine body (1), a transmission wheel is arranged on the driving shaft of the No. 2 motor, the transmission wheel is in frictional contact with the outer wall of the rotating ring (31), a plurality of water flow grooves (32) are arranged on the inner wall of the rotating ring (31), the water flow grooves (32) are connected to the connecting channel (14), and a solenoid valve and a flow sensor are arranged inside the water flow groove (32).

4. The phosphogypsum comprehensive utilization equipment according to claim 3, characterized in that: A plurality of rotating grooves are arranged at the bottom of the water flow groove (32), a crystallization plate (33) is rotatably connected in the rotating groove, the crystallization plate (33) is rotatably connected to the rotating groove, a plurality of the crystallization plates (33) are combined into a semi-elliptical cavity, a sealing strip is arranged between two adjacent crystallization plates (33), and an electric heating wire is arranged in the crystallization plate (33).

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