Stirring method and stirring equipment for producing ammonium sulfate using carbonized ammonia water and phosphogypsum

Abstract

The invention discloses a stirring method and a stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum, and relates to the field of stirring technology. The stirring device comprises a reaction tank, a stirring motor, a mounting frame, a liquid pump and a discharging mechanism, wherein the mounting frame is arranged above the reaction tank. Compared with the existing stirring device, the invention is provided with a spiral tube, and a liquid with a certain temperature is transported into the spiral tube through an external infusion system. The temperature in the reaction tank is ensured to be constant by the liquid with temperature in the spiral tube, so as to ensure the reaction speed of the carbonized ammonia water and the phosphogypsum on the one hand, and to ensure that calcium carbonate impurities with larger particle sizes can be produced when the carbonized ammonia water and the phosphogypsum react on the other hand. The invention is also provided with a rotating component and a sliding sleeve, and the sliding sleeve is driven by the rotating component to perform a spiral motion along the spiral tube, and the surface of the spiral tube can be cleaned by a cleaning block in the sliding sleeve, so as to avoid the subsequent temperature control performance of the spiral tube being affected.

Description

Technical Field

[0001] The invention relates to the technical field of stirring, in particular to a stirring method and stirring equipment for producing ammonium sulfate by utilizing carbonized ammonia water and phosphogypsum. Background Art

[0002] Phosphogypsum is a by-product of the phosphoric acid production process and is usually regarded as a waste. However, if the phosphogypsum is properly treated and reacted with carbonated ammonia water, it can be converted into valuable ammonium sulfate, thereby achieving efficient utilization of resources and reducing waste accumulation.

[0003] At present, the method of producing ammonium sulfate from carbonized ammonia water and phosphogypsum is usually to place the two in a reinforced concrete reaction tank for stirring reaction. At the same time, in order to ensure the appropriate reaction temperature, some stirring equipment will also be equipped with a temperature control system. However, in the actual working process, the carbonized ammonia water and phosphogypsum will not only produce ammonium sulfate but also calcium carbonate impurities. However, these impurities are easily accumulated on the temperature control system, thereby affecting the temperature control performance of the temperature control system. Finally, after the reaction of the carbonized ammonia water and phosphogypsum is completed, it is usually necessary to use liquid pumps and other equipment to pump the ammonium sulfate in the reaction tank to the next process. However, at present, a small amount of calcium carbonate impurities are often pumped away together with the ammonium sulfate during the pumping process. These calcium carbonate impurities are easily attached to the inside of the liquid pump, affecting the normal operation of the liquid pump. If a filter is directly set at the liquid inlet end of the liquid pump, the filter needs to be manually cleaned every once in a while, thereby reducing work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a stirring method and a stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum, the stirring device comprising a reaction tank, a stirring motor, a mounting frame, a liquid pump and a discharging mechanism, the mounting frame is arranged above the reaction tank, the discharging mechanism is arranged at the lower end of the reaction tank, the liquid pump is arranged below the reaction tank, the liquid pump is connected with the discharging mechanism through a discharge pipe, two groups of stirring motors are arranged, the two groups of stirring motors are relatively arranged on the left and right sides above the mounting frame, and a group of stirring shafts are arranged below each group of stirring motors. When the carbonized ammonia water and the phosphogypsum are placed in the reaction tank, the stirring shaft is controlled to rotate by the stirring motor, and the carbonized ammonia water and the phosphogypsum are stirred by the stirring shaft to accelerate the carbonization of the carbonized ammonia water and the phosphogypsum. The reaction rate is controlled by a group of spiral tubes disposed on the outer side of each group of the stirring shafts, and the two groups of the spiral tubes are connected by a connecting tube, wherein one group of the spiral tubes is connected to the outlet end of an external liquid infusion system through a liquid inlet tube, and the other group of the spiral tubes is connected to the inlet end of an external liquid infusion system through a liquid outlet tube. When the carbonized ammonia water and phosphogypsum are stirred, the present invention transports a liquid with a certain temperature into the two groups of spiral tubes through the external liquid infusion system, and the temperature of the liquid is adjusted by the staff according to the temperature in the reaction tank. The temperature in the reaction tank is ensured to be constant by the liquid with temperature in the two groups of spiral tubes, so as to ensure the reaction rate of the carbonized ammonia water and the phosphogypsum on the one hand, and to ensure that calcium carbonate impurities with a larger particle size can be produced when the carbonized ammonia water and the phosphogypsum react on the other hand, so as to facilitate subsequent treatment.

[0006] Furthermore, each group of the spiral tubes is provided with a group of sliding sleeves, and each group of the sliding sleeves is provided inside a group of cleaning blocks. The stirring device also includes a mounting plate, and two groups of the mounting plates are provided. The two groups of mounting plates are relatively arranged on the left and right sides below the mounting frame. A group of rotating components is provided inside each group of the mounting plates, and each group of the sliding sleeves is connected to a group of rotating components through a multi-section telescopic rod. After the work of the present invention is completed, the staff can drive the sliding sleeve to perform spiral motion along the spiral tube through the rotating component. During the movement of the sliding sleeve, the cleaning block can clean the surface of the spiral tube to prevent calcium carbonate impurities produced during the reaction of carbonized ammonia water and phosphogypsum from adhering to the spiral tube, thereby affecting the subsequent temperature control performance of the spiral tube.

[0007] Furthermore, a through groove is provided inside the sliding sleeve, the cleaning block is arranged at the middle position inside the through groove, and a group of thermometers are provided at both ends of the through groove. The thermometers in the present invention and other components arranged in the reaction tank are all made of anti-corrosion materials. During the operation of the present invention, the staff can move the sliding sleeve to any position of the spiral tube through the rotating component from time to time, and use the thermometer to detect whether the heat emitted from the spiral tube to the outside is qualified, so as to facilitate the staff to clean the surface of the spiral tube in time through the cleaning block.

[0008] Furthermore, the rotating assembly includes a second electromagnet, a third transmission gear, a fourth transmission gear, a linkage disk, an internal gear and a fixed ring, the linkage disk is fixedly mounted on the stirring shaft, the second electromagnet is arranged below the linkage disk, the third transmission gear is fixedly mounted on the outside of the second electromagnet, the third transmission gear is connected to the internal gear through the fourth transmission gear, the fixed ring is arranged below the internal gear, and the multi-section telescopic rod is fixedly mounted on the fixed ring. During normal stirring of carbonized ammonia water and phosphogypsum by the present invention, the second electromagnet is in a non-opening state, and the second electromagnet and the linkage disk do not interfere with each other. When the staff needs the sleeve to perform a spiral motion along the spiral tube, the second electromagnet is turned on, and a group of magnetic fields that attract the linkage disk are generated by the second electromagnet, so that the second electromagnet and the linkage disk are fixed together. At this time, the stirring motor can drive the linkage disk and the second electromagnet to rotate synchronously through the stirring shaft. Finally, under the transmission action of the third transmission gear, the fourth transmission gear and the internal gear, the multi-section telescopic rod will carry the sleeve to perform a spiral motion along the spiral tube, and the surface of the spiral tube is cleaned by the cleaning block in the sleeve.

[0009] Furthermore, the rotating assembly also includes a first electromagnet, a first transmission gear and a second transmission gear. The first electromagnet is arranged above the linkage disk, the first transmission gear is fixedly mounted on the outside of the first electromagnet, and the first transmission gear is connected to the internal gear through two sets of second transmission gears. If the staff needs the sleeve to make a reciprocating lifting spiral motion along the spiral tube, the first electromagnet and the second electromagnet can be turned on alternately (that is, when the second electromagnet is turned on, the first electromagnet is in a closed state; when the first electromagnet is turned on, the second electromagnet is in a closed state). Through the above technical scheme, the rotation direction of the internal gear and the fixed ring can be changed as needed, so as to ensure that the multi-section telescopic rod carries the sleeve to make a lifting spiral motion along the spiral tube. Finally, the present invention does not need to frequently change the rotation direction of the stirring motor on the basis of realizing the lifting spiral motion of the sleeve along the spiral tube, thereby avoiding frequent starting and stopping of the stirring motor when changing the rotation direction, thereby affecting the service life of the stirring motor.

[0010] Further, the discharging mechanism includes a first discharging frame, a second discharging frame, a fixed disk and a driving assembly, the first discharging frame is arranged above the fixed disk, the second discharging frame is arranged inside the first discharging frame, the first discharging frame is provided with a discharging hole, the second discharging frame is provided with a filter hole, a through hole is provided at the middle position of the fixed disk, the through hole is aligned with the drain pipe, an arc frame, a first groove and a second groove are provided inside the fixed disk, one end of the arc frame is provided in the first groove, and the other end of the arc frame is provided In the second groove, one end of the arc frame located in the second groove is fixedly connected to the second discharging rack. When the carbonized ammonia water and phosphogypsum are stirred, the first discharging rack blocks the filter holes on the second discharging rack. When the reaction of the carbonized ammonia water and the phosphogypsum is completed, the arc frame is controlled by the driving component to move in the first groove and the second groove until the discharging holes on the first discharging rack are aligned with the filter holes on the second discharging rack. At this time, the calcium carbonate impurities generated by the reaction of the carbonized ammonia water and the phosphogypsum are intercepted by the filter holes, thereby ensuring that the ammonium sulfate is smoothly transported to the next process by the liquid pump.

[0011] Furthermore, the driving component includes a liquid storage rack, the interior of which is provided with a third electromagnet, a compression plate and a liquid storage tank, the compression plate has a permanent magnet at one end close to the third electromagnet, the liquid storage tank is connected to the first groove through a conduit, hydraulic oil is provided in the liquid storage tank, and an annular spring is provided in the second groove. When the reaction of carbonized ammonia water and phosphogypsum is completed, the third electromagnet is turned on, and the third electromagnet generates a set of magnetic fields that repel the permanent magnet on the compression plate, and the hydraulic oil in the liquid storage tank is squeezed into the first groove through the compression plate. Under the action of the hydraulic pressure, the arc frame rotates with the second discharging rack until the discharging hole on the first discharging rack is aligned with the filter hole on the second discharging rack, so as to facilitate the ammonium sulfate to be transported to the next process by the liquid pump. The liquid pump in the present invention When extracting ammonium sulfate, the staff can close and then restart the third electromagnet at irregular intervals. When the third electromagnet is closed, under the action of the annular spring, the arc frame will reset the second discharging rack with it. During the resetting process of the second discharging rack, the first discharging rack will scrape away the calcium carbonate impurities accumulated on the filter holes, thereby avoiding clogging of the filter holes on the second discharging rack. Finally, if the liquid pump in the present invention fails, or the ammonium sulfate in the reaction tank cannot be normally transported away due to power outages and other reasons, under the action of the annular spring, the arc frame will automatically reset the second discharging rack with it, cutting off the channel for the ammonium sulfate in the reaction tank to flow out of the outside world, thereby reducing the risk of ammonium sulfate leakage and facilitating the staff to discharge the ammonium sulfate in the liquid pump and subsequent maintenance.

[0012] A stirring method used in a stirring device for producing ammonium sulfate using carbonized ammonia water and phosphogypsum, the stirring method comprising the following steps:

[0013] S1: transporting carbonized ammonia water and phosphogypsum into the reaction tank;

[0014] S2: Turn on the stirring motor to stir the carbonized ammonia water and phosphogypsum through the stirring shaft;

[0015] S3: After the reaction of carbonized ammonia water and phosphogypsum is completed, the produced ammonium sulfate is transported to the next process through a liquid pump.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the current stirring equipment, the present invention is provided with a spiral tube. When stirring carbonized ammonia water and phosphogypsum, a liquid with a certain temperature is transported into the spiral tube through an external infusion system. The temperature of the liquid is adjusted by the staff according to the temperature in the reaction tank. The temperature in the reaction tank is ensured to be constant by the liquid with temperature in the spiral tube. On the one hand, the speed of the reaction of carbonized ammonia water and phosphogypsum is ensured. On the other hand, it is ensured that larger particle size calcium carbonate impurities can be produced when carbonized ammonia water and phosphogypsum react, so as to facilitate subsequent treatment. The present invention is also provided with a rotating component and a sliding sleeve. The sliding sleeve is driven by the rotating component to make a spiral motion along the spiral tube. During the movement of the sliding sleeve, The cleaning block in the sleeve can clean the surface of the spiral tube to prevent the calcium carbonate impurities generated during the reaction of carbonized ammonia water and phosphogypsum from adhering to the spiral tube, thereby affecting the subsequent temperature control performance of the spiral tube. In addition, the rotating assembly in the present invention can ensure that the multi-section telescopic rod carries the sleeve to perform a lifting spiral motion along the spiral tube without changing the rotation direction of the stirring motor, thereby avoiding frequent starting and stopping of the stirring motor when the rotation direction is changed, thereby affecting the service life of the stirring motor. The present invention is also provided with a discharging mechanism. When the reaction of carbonized ammonia water and phosphogypsum is completed, the calcium carbonate impurities generated during the reaction of carbonized ammonia water and phosphogypsum are intercepted by the discharging mechanism, thereby ensuring that the ammonium sulfate is smoothly transported to the next process by the liquid pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the reaction tank of the present invention;

[0019] Figure 3 It is a schematic diagram of the spiral tube structure of the present invention;

[0020] Figure 4 It is a schematic diagram of the internal structure of the installation disk of the present invention;

[0021] Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the middle BB part;

[0022] Figure 6 For the present invention Figure 4 Schematic diagram of the structure of the middle AA section;

[0023] Figure 7 It is a schematic diagram of the internal structure of the sliding sleeve of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the discharging mechanism of the present invention;

[0025] Fig. 9 It is a schematic structural diagram of the first discharging rack of the present invention;

[0026] Fig.10 It is a schematic structural diagram of the second discharging rack of the present invention;

[0027] Fig.11 It is a schematic diagram of the fixed disk structure of the present invention;

[0028] Fig.12 It is a schematic diagram of the internal structure of the fixed disk of the present invention.

[0029] In the figure: 1, reaction tank; 2, stirring motor; 21, stirring shaft; 3, mounting plate; 31, first electromagnet; 311, first transmission gear; 312, second transmission gear; 32, second electromagnet; 321, third transmission gear; 322, fourth transmission gear; 33, linkage plate; 34, internal gear; 35, fixed ring; 4, mounting frame; 5, liquid pump; 51, discharge pipe; 6, spiral pipe; 61, liquid inlet pipe; 62, liquid outlet pipe; 63, connecting pipe; 64, sliding sleeve; 641, cleaning block; 642, temperature detector; 65, multi-section telescopic rod; 7, discharging mechanism; 71, first discharging rack; 711, discharging hole; 72, second discharging rack; 721, filter hole; 73, fixed plate; 731, arc frame; 732, first groove; 733, second groove; 74, liquid storage rack; 741, third electromagnet; 742, compression plate. DETAILED DESCRIPTION

[0030] 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.

[0031] Example: Figure 1-Figure 3As shown, the present invention provides a technical solution, a stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum, the stirring device comprising a reaction tank 1, a stirring motor 2, a mounting frame 4, a liquid pump 5 and a discharging mechanism 7, the mounting frame 4 is arranged above the reaction tank 1, the discharging mechanism 7 is arranged at the lower end of the reaction tank 1, the liquid pump 5 is arranged below the reaction tank 1, the liquid pump 5 is connected to the discharging mechanism 7 through a discharge pipe 51, the stirring motor 2 is provided with two groups, the two groups of stirring motors 2 are relatively arranged on the left and right sides above the mounting frame 4, and a group of stirring shafts 21 are arranged below each group of stirring motors 2. When the carbonized ammonia water and the phosphogypsum are placed in the reaction tank 1, the stirring motor 2 controls the stirring shaft 21 to rotate, and the carbonized ammonia water and the phosphogypsum are stirred by the stirring shaft 21 to accelerate the reaction of the carbonized ammonia water and the phosphogypsum. In order to adjust the speed, a group of spiral tubes 6 are arranged on the outside of each group of stirring shafts 21, and the two groups of spiral tubes 6 are connected by a connecting tube 63, wherein one group of spiral tubes 6 is connected to the outlet end of the external infusion system through a liquid inlet pipe 61, and the other group of spiral tubes 6 is connected to the inlet end of the external infusion system through a liquid outlet pipe 62. When the present invention stirs the carbonized ammonia water and the phosphogypsum, a liquid with a certain temperature is transported into the two groups of spiral tubes 6 through the external infusion system, and the temperature of the liquid is adjusted by the staff according to the temperature in the reaction tank 1. The temperature in the reaction tank 1 is ensured to be constant by the liquid with temperature in the two groups of spiral tubes 6, so as to ensure the reaction speed of the carbonized ammonia water and the phosphogypsum on the one hand, and to ensure that the calcium carbonate impurities with a larger particle size can be produced when the carbonized ammonia water reacts with the phosphogypsum on the other hand, so as to facilitate the subsequent treatment.

[0032] like Figure 2-Figure 4 , Figure 7 As shown, each group of spiral tubes 6 is provided with a group of sliding sleeves 64, and each group of sliding sleeves 64 is provided with a group of cleaning blocks 641 inside. The stirring device also includes a mounting plate 3, and two groups of mounting plates 3 are provided. The two groups of mounting plates 3 are relatively arranged on the left and right sides below the mounting frame 4, and each group of mounting plates 3 is provided with a group of rotating components inside. Each group of sliding sleeves 64 is connected to a group of rotating components through a multi-section telescopic rod 65. After the work of the present invention is completed, the staff can drive the sliding sleeve 64 to perform spiral motion along the spiral tube 6 through the rotating component. During the movement of the sliding sleeve 64, the cleaning block 641 can be used to clean the surface of the spiral tube 6 to prevent the calcium carbonate impurities produced during the reaction of carbonized ammonia water and phosphogypsum from adhering to the spiral tube 6, thereby affecting the subsequent temperature control performance of the spiral tube 6.

[0033] like Figure 7As shown, a through groove is provided inside the sliding sleeve 64, a cleaning block 641 is provided at the middle position inside the through groove, and a group of thermometers 642 are provided at both ends of the through groove. The thermometers 642 in the present invention and other components provided in the reaction tank 1 are all made of anti-corrosion materials. During the operation of the present invention, the staff can move the sliding sleeve 64 to any position of the spiral tube 6 through the rotating component from time to time, and use the thermometer 642 to detect whether the heat emitted to the outside by the spiral tube 6 is qualified, so as to facilitate the staff to clean the surface of the spiral tube 6 through the cleaning block 641 in time.

[0034] like Figure 4 , Figure 5 As shown, the rotating assembly includes a second electromagnet 32, a third transmission gear 321, a fourth transmission gear 322, a linkage disk 33, an internal gear 34 and a fixed ring 35. The linkage disk 33 is fixedly mounted on the stirring shaft 21. The second electromagnet 32 ​​is arranged below the linkage disk 33. The third transmission gear 321 is fixedly mounted on the outer side of the second electromagnet 32. The third transmission gear 321 is connected to the internal gear 34 through the fourth transmission gear 322. The fixed ring 35 is arranged below the internal gear 34. The multi-section telescopic rod 65 is fixedly mounted on the fixed ring 35. When the carbonized ammonia water and phosphogypsum are normally stirred, the second electromagnet 32 ​​is in a non-open state, and the second The electromagnet 32 ​​and the linkage disk 33 do not interfere with each other. When the staff needs the sleeve 64 to make a spiral motion along the spiral tube 6, the second electromagnet 32 ​​is turned on, and a set of magnetic fields that attract the linkage disk 33 are generated by the second electromagnet 32, so that the second electromagnet 32 ​​and the linkage disk 33 are fixed together. At this time, the stirring motor 2 can drive the linkage disk 33 and the second electromagnet 32 ​​to rotate synchronously through the stirring shaft 21. Finally, under the transmission action of the third transmission gear 321, the fourth transmission gear 322 and the internal gear 34, the multi-section telescopic rod 65 will carry the sleeve 64 to make a spiral motion along the spiral tube 6, and the surface of the spiral tube 6 is cleaned by the cleaning block 641 in the sleeve 64.

[0035] like Figure 4 , Figure 6As shown, the rotating assembly also includes a first electromagnet 31, a first transmission gear 311 and a second transmission gear 312. The first electromagnet 31 is arranged above the linkage disk 33, and the first transmission gear 311 is fixedly installed on the outer side of the first electromagnet 31. The first transmission gear 311 is connected to the inner gear 34 through two sets of second transmission gears 312. If the staff needs the sleeve 64 to perform a reciprocating lifting spiral motion along the spiral tube 6, the first electromagnet 31 and the second electromagnet 32 ​​can be alternately turned on (that is, when the second electromagnet 32 ​​is turned on, the first electromagnet 31 is in a closed state; when the first electromagnet 31 is turned on, the second electromagnet 32 ​​is in a closed state). Through the above technical solution, the rotation direction of the inner gear 34 and the fixed ring 35 can be changed as needed, so as to ensure that the multi-section telescopic rod 65 carries the sleeve 64 to perform a lifting spiral motion along the spiral tube 6. Finally, the present invention does not need to frequently change the rotation direction of the stirring motor 2 on the basis of realizing the lifting spiral motion of the sleeve 64 along the spiral tube 6, so as to avoid frequent start and stop of the stirring motor 2 when changing the rotation direction, thereby affecting the service life of the stirring motor 2.

[0036] like Figure 8-Figure 12 As shown, the discharging mechanism 7 includes a first discharging frame 71, a second discharging frame 72, a fixed plate 73 and a driving assembly. The first discharging frame 71 is arranged above the fixed plate 73, and the second discharging frame 72 is arranged inside the first discharging frame 71. The first discharging frame 71 is provided with a discharging hole 711, and the second discharging frame 72 is provided with a filter hole 721. A through hole is provided at the middle position of the fixed plate 73, and the through hole is aligned with the drain pipe 51. The fixed plate 73 is provided with an arc frame 731, a first groove 732 and a second groove 733. One end of the arc frame 731 is arranged in the first groove 732, and the other end of the arc frame 731 is arranged in the second groove 733. 33, one end of the arc frame 731 located in the second groove 733 is fixedly connected to the second discharging frame 72. When the carbonized ammonia water and phosphogypsum are stirred, the first discharging frame 71 blocks the filter hole 721 on the second discharging frame 72. When the reaction of the carbonized ammonia water and the phosphogypsum is completed, the arc frame 731 is controlled by the driving component to move in the first groove 732 and the second groove 733 until the discharging hole 711 on the first discharging frame 71 is aligned with the filter hole 721 on the second discharging frame 72. At this time, the calcium carbonate impurities generated when the carbonized ammonia water reacts with the phosphogypsum are retained by the filter hole 721, thereby ensuring that the ammonium sulfate is smoothly transported to the next process by the liquid pump 5.

[0037] like Figure 8-Figure 12As shown, the driving component includes a liquid storage rack 74, and the liquid storage rack 74 is provided with a third electromagnet 741, a compression plate 742 and a liquid storage tank. The compression plate 742 has a permanent magnet at one end close to the third electromagnet 741. The liquid storage tank is connected to the first groove 732 through a conduit. Hydraulic oil is arranged in the liquid storage tank. An annular spring is arranged in the second groove 733. When the reaction of carbonized ammonia water and phosphogypsum is completed, the third electromagnet 741 is turned on, and the third electromagnet 741 will generate a group of magnetic fields that repel the permanent magnet on the compression plate 742. The hydraulic oil in the liquid storage tank is squeezed into the first groove 732 through the compression plate 742. Under the action of the hydraulic pressure, the arc frame 731 rotates with the second discharging rack 72 until the discharging hole 711 on the first discharging rack 71 is aligned with the filter hole 721 on the second discharging rack 72, so as to facilitate the ammonium sulfate to be transported to the next process by the liquid pump 5. When the liquid pump 5 is extracting ammonium sulfate, the staff can occasionally close and then restart the third electromagnet 741. When the third electromagnet 741 is closed, under the action of the annular spring, the arc frame 731 will reset the second discharging rack 72. During the resetting process of the second discharging rack 72, the first discharging rack 71 will scrape away the calcium carbonate impurities accumulated on the filter holes 721, so as to avoid the filter holes 721 on the second discharging rack 72 from being blocked. Finally, if the liquid pump 5 in the present invention fails, or the ammonium sulfate in the reaction tank 1 cannot be normally transported away due to power outages or other reasons, under the action of the annular spring, the arc frame 731 will automatically reset the second discharging rack 72 with the second discharging rack 72, cutting off the channel for the ammonium sulfate in the reaction tank 1 to flow out of the outside, thereby reducing the risk of ammonium sulfate leakage and facilitating the staff to discharge the ammonium sulfate in the liquid pump 5 and subsequent maintenance.

[0038] A stirring method used in a stirring device for producing ammonium sulfate using carbonized ammonia water and phosphogypsum, the stirring method comprising the following steps:

[0039] S1: transporting carbonized ammonia water and phosphogypsum into reaction tank 1;

[0040] S2: Turn on the stirring motor 2 to stir the carbonized ammonia water and phosphogypsum through the stirring shaft 21;

[0041] S3: After the reaction of the carbonized ammonia water and the phosphogypsum is completed, the produced ammonium sulfate is transported to the next process through the liquid pump 5.

[0042] The working principle of the present invention is as follows: before working, the carbonized ammonia water and the phosphogypsum are placed in the reaction tank 1. During working, the stirring motor 2 is turned on, and the stirring shaft 21 is controlled to rotate by the stirring motor 2. The carbonized ammonia water and the phosphogypsum are stirred by the stirring shaft 21 to accelerate the reaction rate of the carbonized ammonia water and the phosphogypsum. Finally, when the carbonized ammonia water and the phosphogypsum are stirred, a liquid with a certain temperature is transported into the two groups of spiral tubes 6 through the external infusion system. The temperature of the liquid is adjusted by the staff according to the temperature in the reaction tank 1. The temperature in the reaction tank 1 is ensured to be constant by the liquid with temperature in the two groups of spiral tubes 6. When the reaction of the carbonized ammonia water and the phosphogypsum is finished, the arc frame 73 is controlled by the driving component. The first groove 732 and the second groove 733 are moved until the discharge hole 711 on the first discharge rack 71 is aligned with the filter hole 721 on the second discharge rack 72. At this time, the calcium carbonate impurities produced by the reaction of the carbonized ammonia water and the phosphogypsum are intercepted by the filter hole 721, so as to ensure that the ammonium sulfate is smoothly transported to the next process by the liquid pump 5. When the ammonium sulfate is discharged, the sliding sleeve 64 is driven by the rotating component to perform a spiral motion along the spiral tube 6. During the movement of the sliding sleeve 64, the cleaning block 641 can clean the surface of the spiral tube 6 to prevent the calcium carbonate impurities produced in the reaction of the carbonized ammonia water and the phosphogypsum from adhering to the spiral tube 6 and affecting the subsequent temperature control performance of the spiral tube 6.

[0043] 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. The embodiments should therefore be considered exemplary and non-limiting, 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 stirring device for producing ammonium sulfate using carbonized ammonia water and phosphogypsum, characterized in that: The stirring device comprises a reaction tank (1), a stirring motor (2), a mounting frame (4), a liquid pump (5) and a discharge mechanism (7), wherein the mounting frame (4) is arranged above the reaction tank (1), the discharge mechanism (7) is arranged at the lower end of the reaction tank (1), the liquid pump (5) is arranged below the reaction tank (1), and the liquid pump (5) is connected to the discharge mechanism (7) through a discharge pipe (51), and the stirring motor (2) is provided in two groups, and the two groups of stirring motors (2) are arranged on the left and right sides above the mounting frame (4) relative to each other, a group of stirring shafts (21) is arranged below each group of stirring motors (2), and a group of spiral tubes (6) is arranged on the outside of each group of stirring shafts (21), and the two groups of spiral tubes (6) are connected through a connecting pipe (63), one group of the spiral tubes (6) is connected to the outlet end of an external infusion system through a liquid inlet pipe (61), and the other group of the spiral tubes (6) is connected to the inlet end of an external infusion system through a liquid outlet pipe (62); Each group of the spiral tubes (6) is provided with a group of sliding sleeves (64), and each group of the sliding sleeves (64) is provided with a group of cleaning blocks (641) inside. The stirring device further comprises a mounting plate (3), and two groups of the mounting plates (3) are provided. The two groups of the mounting plates (3) are relatively arranged on the left and right sides below the mounting frame (4), and each group of the mounting plates (3) is provided with a group of rotating components inside. Each group of the sliding sleeves (64) is connected to a group of rotating components via a multi-section telescopic rod (65); The rotating assembly comprises a second electromagnet (32), a third transmission gear (321), a fourth transmission gear (322), a linkage disk (33), an internal gear (34) and a fixed ring (35); the linkage disk (33) is fixedly mounted on the stirring shaft (21); the second electromagnet (32) is arranged below the linkage disk (33); the third transmission gear (321) is fixedly mounted on the outside of the second electromagnet (32); the third transmission gear (321) is connected to the internal gear (34) via the fourth transmission gear (322); the fixed ring (35) is arranged below the internal gear (34); and the multi-section telescopic rod (65) is fixedly mounted on the fixed ring (35).

2. The stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum according to claim 1, characterized in that: A through slot is provided inside the sliding sleeve (64), the cleaning block (641) is arranged at a middle position inside the through slot, and a group of temperature measuring devices (642) are provided at both ends of the through slot.

3. The stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum according to claim 1, characterized in that: The rotating assembly further comprises a first electromagnet (31), a first transmission gear (311) and a second transmission gear (312); the first electromagnet (31) is arranged above the linkage disk (33); the first transmission gear (311) is fixedly mounted on the outside of the first electromagnet (31); and the first transmission gear (311) is connected to the internal gear (34) via two sets of second transmission gears (312).

4. The stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum according to claim 1, characterized in that: The discharging mechanism (7) comprises a first discharging frame (71), a second discharging frame (72), a fixed plate (73) and a driving assembly, wherein the first discharging frame (71) is arranged above the fixed plate (73), the second discharging frame (72) is arranged inside the first discharging frame (71), the first discharging frame (71) is provided with a discharging hole (711), the second discharging frame (72) is provided with a filter hole (721), a through hole is provided at a middle position of the fixed plate (73), and the through hole is aligned with the drain pipe (51). An arc frame (731), a first groove (732) and a second groove (733) are arranged inside the fixed plate (73); one end of the arc frame (731) is arranged in the first groove (732), and the other end of the arc frame (731) is arranged in the second groove (733); one end of the arc frame (731) located in the second groove (733) is fixedly connected to the second discharging frame (72); the arc frame (731) is controlled to move in the first groove (732) and the second groove (733) by the driving component.

5. The stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum according to claim 4, characterized in that: The driving assembly comprises a liquid storage rack (74), wherein a third electromagnet (741), a compression plate (742) and a liquid storage tank are arranged inside the liquid storage rack (74), wherein one end of the compression plate (742) close to the third electromagnet (741) has a permanent magnet, the liquid storage tank is connected to the first groove (732), and an annular spring is arranged inside the second groove (733).

6. The stirring method used in the stirring device for producing ammonium sulfate by using carbonized ammonia water and phosphogypsum according to claim 1, characterized in that: The stirring method comprises the following steps: S1: transporting carbonized ammonia water and phosphogypsum into a reaction tank (1); S2: Turn on the stirring motor (2) to stir the carbonized ammonia water and phosphogypsum via the stirring shaft (21); S3: After the reaction of the carbonized ammonia water and the phosphogypsum is completed, the produced ammonium sulfate is transported to the next process via the liquid pump (5).

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