An integrated device for promoting crystal growth

Abstract

The invention relates to the technical field of ammonia desulfurization, and in particular to an integrated device for promoting crystal growth, comprising a desulfurization crystallization tower, a steam generator is arranged on one side outer wall of the desulfurization crystallization tower, a steam transmission end of the steam generator is connected to a first steam transmission pipe, and one end of the first steam transmission pipe runs through the interior of the desulfurization crystallization tower, a discharge port is through-connected on the bottom outer wall of the desulfurization crystallization tower, and a slurry crystallization tank is arranged on one side outer wall of the desulfurization crystallization tower; in the ammonia desulfurization process of the invention, the waste gas is desulfurized in the desulfurization tower, and the solution is concentrated and concentrated in the desulfurization tower by using high-temperature steam as a heat source, so that the slurry in the desulfurization tower is crystallized and precipitated; in the process, a feed pump is operated to pump the slurry with fine crystals in the desulfurization tower into the slurry crystallization tank, and the fine crystal slurry is crystallized by separating a part of the solvent in the slurry crystallization tank in combination with slow stirring, thereby increasing the crystallization; the crystallization inside the tower and outside the tower are combined to effectively increase the crystallization.

Description

Technical Field

[0001] The invention relates to the technical field of ammonia desulfurization, and in particular to an integrated device for promoting crystal growth. Background Art

[0002] Ammonia desulfurization is an efficient and environmentally friendly flue gas desulfurization technology. The research and application of ammonia desulfurization technology has a long history. Initially, people found that ammonia has good absorption properties for sulfur dioxide, and ammonia and sulfur dioxide can react quickly and effectively. Based on this chemical property, they began to explore its application in the field of flue gas desulfurization. The early ammonia desulfurization process was relatively simple, and there were problems such as poor control of ammonia escape and insufficient system operation stability. However, with the continuous progress of chemical technology and automation control technology, ammonia desulfurization technology has made great progress in process optimization and equipment improvement. Ammonia desulfurization crystallization is a key link in the ammonia flue gas desulfurization process. In ammonia desulfurization, sulfur dioxide in the flue gas reacts with ammonia water to form ammonium sulfite, which is converted into ammonium sulfate under oxidation. When the ammonium sulfate solution reaches saturation, the water continues to evaporate or the temperature is lowered, and the ammonium sulfate in the solution will crystallize out.

[0003] At present, ammonia-based desulfurization crystallization is often carried out through a desulfurization tower, which uses the heat of the original flue gas to concentrate the solution in the desulfurization tower. There are problems such as large changes in the physical properties of the slurry in the tower, ammonium sulfate is not easy to crystallize, and the crystal particles are small. When the crystal particles are small and cannot be separated by a centrifuge, replacement treatment can only be carried out, which increases energy consumption and processing procedures, and is not conducive to the implementation of ammonia-based desulfurization.

[0004] In order to solve the above problems, the present invention proposes an integrated device for promoting crystal growth. Summary of the invention

[0005] (1) Technical issues to be resolved

[0006] The purpose of the present invention is to overcome the problems in the prior art that ammonia desulfurization crystallization is often carried out through a desulfurization tower, and the heat of the original flue gas is used to concentrate the solution in the desulfurization tower. There are problems such as large changes in the physical properties of the slurry in the tower, ammonium sulfate is not easy to crystallize, and the crystal particles are small. In order to meet the actual needs, an integrated device for promoting crystal growth is provided to solve the above technical problems.

[0007] (2) Technical solution

[0008] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is:

[0009] An integrated device for promoting crystal growth comprises a desulfurization crystallization tower, a steam generator is arranged on one side outer wall of the desulfurization crystallization tower, a steam delivery end of the steam generator is connected to a first steam delivery pipe, and one end of the first steam delivery pipe passes through the interior of the desulfurization crystallization tower, a discharge port is connected through the bottom outer wall of the desulfurization crystallization tower, a slurry crystallization tank is arranged on one side outer wall of the desulfurization crystallization tower, a feed pump is installed on one side outer wall of the discharge port, a suction end of the feed pump is connected to a suction pipe, and one end of the suction pipe is connected through the interior of the discharge port, a pumping end of the feed pump is connected to a pumping pipe, and one end of the pumping pipe is connected through the interior of the slurry crystallization tank, a particle screen fine component is arranged in the middle of the pumping pipe, and a linkage stirring crystallization component is arranged on the top inner wall of the slurry crystallization tank.

[0010] Preferably, the particle screening component includes a cylindrical tank connected to the middle outer wall of the pump pipe, a screening cylinder is inserted inside the cylindrical tank, a top cover is provided on the top outer wall of the cylindrical tank, an internal thread is provided on the bottom inner wall of the top cover, an external thread is provided on the top outer wall of the cylindrical tank, and a linkage sealing and anti-blocking component is provided on the top outer wall of the top cover.

[0011] Preferably, the linked stirring crystallization assembly includes a turbine disk fixed on the outer wall of the top of the slurry crystallization tank, the turbine disk is connected to a rotating tube for internal rotation, the rotating tube is located on the outer wall of one end of the turbine disk and is fitted with a turbine impeller, the rotating tube passes through the outer wall of one end of the turbine disk and is fitted with a first bevel gear, a mounting plate is fixed on the outer wall of one side of the top of the turbine disk, a motor is embedded and installed on the outer wall of one side of the mounting plate, a second bevel gear is fixed to one end of the output shaft of the motor, the first bevel gear and the second bevel gear are meshed and connected, a curved pipe is connected through the outer wall of one side of the turbine disk, and the curved pipe It is rotatably connected to the end of the rotating tube, and the rotatable connection is installed with a first rotating joint. A second steam pipe is connected through the outer wall of the other side of the turbine disc, and one end of the second steam pipe is connected to the steam supply end of the steam generator. A strip plate is fixed on the inner wall of the bottom end of the slurry crystallization tank, and the end of the rotating tube is rotatably connected to the middle part of the strip plate. The end of the rotating tube that passes through the outside of the strip plate is rotatably connected to the exhaust pipe, and a second rotating joint is installed at the rotatable connection. The outer wall of the rotating tube that passes through one end of the slurry crystallization tank is distributed and connected with a folded coil, and a stirring impeller is distributed and fixed on the outer wall of the rotating tube located between the folded coils.

[0012] Preferably, the linked sealing and anti-blocking assembly includes a through inner groove opened on the top inner wall of the top cover, the top inner wall of the through inner groove is filled with an air bag, a holding plate is provided on the inner wall of the through inner groove below the air bag, and a sealing gasket is fittedly connected to the top outer wall of the holding plate, the exhaust pipe passes through the through inner groove at one end and is connected to the interior of the air bag, a pressure relief pipe is connected to the top outer wall of the air bag, a pressure relief valve is mounted on the outer wall of the pressure relief pipe passing through one end of the outside of the top cover, a second turbine is fixed on the top outer wall of the top cover, one end of the pressure relief pipe passes through the interior of the second turbine, a return steam pipe is connected to the outer wall on the other side of the second turbine, and the other end of the return steam pipe is connected to the interior of the steam generator, a stirring shaft is rotatably installed on the top inner wall of the top cover, and the stirring shaft and the second turbine are coaxially connected, and the stirring shaft passes through the inner end of the screen cylinder and cleaning brushes are fixed on the outer walls on both sides.

[0013] Preferably, the holding plate is provided with a through hole corresponding to the stirring shaft.

[0014] Preferably, the top end of the screen cylinder is inserted into the through inner groove, and the top end of the screen cylinder is in contact with the bottom outer wall of the sealing gasket.

[0015] Preferably, the bristles of the cleaning brush are soft, and both sides of the cleaning brush are in contact with and connected to the inner wall of the screen cylinder.

[0016] Preferably, bearings are embedded and installed at the rotating connection between the rotating tube and the slurry crystallization tank and the strip plate.

[0017] Preferably, the rotating tube and the folded coil are both heat-conducting copper tubes.

[0018] Preferably, an annular groove is provided on the bottom outer wall of the screen cylinder, and an annular protrusion is fixed on the bottom inner wall of the cylinder tank.

[0019] (3) Beneficial effects:

[0020] A. This integrated device for promoting crystal growth, during the ammonia desulfurization process, the exhaust gas is desulfurized in the desulfurization tower, and the high-temperature steam is used as a heat source to concentrate the solution in the desulfurization tower, so that the slurry in the desulfurization tower is crystallized and precipitated. During the process, the feed pump works to pump the slurry with fine crystals in the desulfurization tower into the slurry crystallization tank, and the fine crystal slurry in the slurry crystallization tank separates a part of the solvent and is slowly stirred to increase the crystallization; the combination of crystallization inside and outside the tower plays an effective role in increasing the crystallization.

[0021] B. Through the setting of the particle screen fine component and the linkage stirring crystallization component, the slurry with crystals is screened through the screen cylinder inside the cylinder tank during the pumping process, so that the small particle crystals and slurry that cannot be separated by the centrifuge are input into the slurry crystallization tank through the pump material pipe, thereby ensuring the size of the crystal particles and facilitating the subsequent crystal separation. After the fine crystal slurry is input into the slurry crystallization tank, the motor is controlled to work, and the cooperation of the second bevel gear and the first bevel gear will drive the rotating tube to rotate, thereby driving the turbine impeller to rotate, and the centrifugal force generated is used to suck hot steam through the second steam transmission pipe, and is input into the rotating tube and the folding coil through the elbow and the first rotary joint. The high-temperature steam is used as the heat source to re-crystallize the fine crystal slurry in the slurry crystallization tank. The rotation of the rotating tube also drives the folding coil and the stirring impeller to rotate, and the fine crystal slurry in the slurry crystallization tank is slowly stirred, so that the slurry in the slurry crystallization tank is fully heated, which is beneficial to the separation of the slurry solvent in the slurry crystallization tank and the increase of crystallization.

[0022] C. Through the setting of the linkage sealing anti-blocking component, the hot steam in the above-mentioned rotating tube is discharged through the second rotating joint and the exhaust pipe, and the discharged steam is input into the airbag. The airbag expands in the through inner groove and drives the holding plate to move downward, so that the sealing gasket at the bottom of the holding plate fits tightly above the screen cylinder, thereby ensuring the tight installation of the screen cylinder. When the air pressure in the airbag reaches the threshold of the pressure relief valve, the excess steam is discharged through the pressure relief pipe and input into the second turbine, and discharged through the return steam pipe and refluxed into the steam generator, realizing steam circulation and playing a role in reducing energy consumption. The circulation of steam in the second turbine will drive the second turbine and the stirring shaft to rotate, thereby driving the cleaning brush to circulate inside the screen cylinder, playing a role in cleaning the inner wall of the screen cylinder, effectively avoiding the occurrence of blockage of the screen cylinder, and facilitating the pumping of the crystal slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an integrated device for promoting crystal growth according to the present invention;

[0024] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 3 It is a schematic diagram of a three-dimensional cross-section structure of a cylinder tank and a top cover in an integrated device for promoting crystal growth of the present invention;

[0026] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 5 It is a schematic diagram of a three-dimensional cross-section structure of the top of a slurry crystallization tank in an integrated device for promoting crystal growth of the present invention;

[0028] Figure 6 It is a schematic diagram of a three-dimensional cross-section structure of the middle part of a slurry crystallization tank in an integrated device for promoting crystal growth of the present invention;

[0029] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0030] The reference numerals are as follows:

[0031] 1. Desulfurization crystallization tower; 2. Steam generator; 3. First steam transmission pipe; 4. Discharge port; 5. Slurry crystallization tank; 6. Feed pump; 7. Suction pipe; 8. Pump pipe; 9. Particle screen fine assembly; 10. Linkage stirring crystallization assembly; 11. Linkage sealing anti-blocking assembly; 12. Annular groove; 13. Annular convex block;

[0032] 901, cylinder; 902, screen cylinder; 903, top cover; 904, internal thread; 905, external thread;

[0033] 101, turbine disc; 102, rotating tube; 103, turbine impeller; 104, first bevel gear; 105, mounting plate; 106, motor; 107, second bevel gear; 108, elbow; 109, first rotary joint; 1010, second steam transmission pipe; 1011, strip plate; 1012, exhaust pipe; 1013, second rotary joint; 1014, folding coil; 1015, stirring impeller;

[0034] 111. Through inner groove; 112. Air bag; 113. Holding plate; 114. Sealing gasket; 115. Pressure relief pipe; 116. Pressure relief valve; 117. Second turbine; 118. Steam return pipe; 119. Agitator shaft; 1110. Cleaning brush. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] The following is combined with Figure 1-7 The present invention is further described with examples:

[0037] In this embodiment, Figure 1-7As shown, an integrated device for promoting crystal growth includes a desulfurization crystallization tower 1, a steam generator 2 is arranged on one side outer wall of the desulfurization crystallization tower 1, a steam delivery end of the steam generator 2 is connected to a first steam delivery pipe 3, and one end of the first steam delivery pipe 3 runs through the interior of the desulfurization crystallization tower 1, a discharge port 4 is connected through the bottom outer wall of the desulfurization crystallization tower 1, a slurry crystallization tank 5 is arranged on one side outer wall of the desulfurization crystallization tower 1, a feed pump 6 is installed on one side outer wall of the discharge port 4, a suction end of the feed pump 6 is connected to a suction pipe 7, and one end of the suction pipe 7 is connected through the interior of the discharge port 4, a pumping end of the feed pump 6 is connected to a pumping pipe 8, and one end of the pumping pipe 8 is connected through the slurry crystallization tank 5, a particle screen fine component 9 is arranged in the middle of the pumping pipe 8, and a linkage stirring crystallization component 10 is arranged on the top inner wall of the slurry crystallization tank 5. During the ammonia desulfurization process, the exhaust gas is desulfurized in the desulfurization crystallization tower 1, and the hot steam generated by the steam generator 2 is input into the desulfurization crystallization tower 1 through the first steam transmission pipe 3. The high-temperature steam is used as a heat source to realize the concentration and enrichment of the solution in the desulfurization crystallization tower 1, so that the slurry in the desulfurization crystallization tower 1 is crystallized and precipitated. During the process, the feeding pump 6 works to pump out the slurry with fine crystals in the desulfurization crystallization tower 1 through the suction pipe 7, and inputs it into the slurry crystallization tank 5 through the pumping pipe 8. The fine crystal slurry is slowly stirred in the slurry crystallization tank 5 to increase the crystallization.

[0038] Furthermore, the particle screening component 9 includes a barrel 901 which is connected to the outer wall of the middle part of the pumping pipe 8, a screening cylinder 902 is inserted inside the barrel 901, a top cover 903 is provided on the top outer wall of the barrel 901, an internal thread 904 is provided on the bottom inner wall of the top cover 903, an external thread 905 is provided on the top outer wall of the top of the barrel 901, and a linkage sealing anti-blocking component 11 is provided on the top outer wall of the top cover 903. In the process of the above-mentioned slurry with crystals being input into the slurry crystallization tank 5 through the pumping pipe 8, the slurry passes through the barrel 901 in the middle part of the pumping pipe 8, and is screened by the screening cylinder 902 inside the barrel 901, so that large particle crystals that can be separated by the centrifuge later are blocked in the discharge port 4 and discharged directly later, so that small particle crystals and slurry that cannot be separated by the centrifuge are input into the slurry crystallization tank 5 through the pumping pipe 8, which can ensure the size of the crystal particles and facilitate the subsequent separation of crystals.

[0039] Furthermore, an annular groove 12 is provided on the bottom outer wall of the screen cylinder 902, and an annular protrusion 13 is fixed on the bottom inner wall of the barrel 901. When the screen cylinder 902 is inserted into the barrel 901, the annular groove 12 at the bottom of the screen cylinder 902 is clamped on the annular protrusion 13 at the bottom of the barrel 901, so as to ensure that the screen cylinder 902 is installed firmly. Later, with the cooperation of the internal thread 904 and the external thread 905, the top cover 903 can be opened on the barrel 901, so that the screen cylinder 902 can be cleaned and replaced.

[0040] In this embodiment, refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The linkage stirring crystallization assembly 10 includes a turbine disk 101 fixed on the outer wall of the top of the slurry crystallization tank 5, the turbine disk 101 is internally connected to a rotating tube 102, the rotating tube 102 is located on the outer wall of one end of the turbine disk 101, and a turbine impeller 103 is fixedly mounted on the outer wall of the rotating tube 102, and the rotating tube 102 runs through the outer wall of one end of the turbine disk 101, and a first bevel gear 104 is fixedly mounted on the outer wall, a mounting plate 105 is fixed on the outer wall of one side of the top of the turbine disk 101, and a motor 106 is inlaid and installed on the outer wall of one side of the mounting plate 105, and a second bevel gear 107 is fixed on one end of the output shaft of the motor 106, and the first bevel gear 104 and the second bevel gear 107 are fixed on the first bevel gear 104 and the second bevel gear 107. The bevel gear 107 is meshed and connected. A bend pipe 108 is connected through the outer wall of one side of the turbine disk 101. The bend pipe 108 is rotatably connected to the end of the rotating tube 102, and a first rotary joint 109 is installed on the rotatable connection. A second steam pipe 1010 is connected through the outer wall of the other side of the turbine disk 101. One end of the second steam pipe 1010 is connected to the steam supply end of the steam generator 2. A strip plate 1011 is fixed on the inner wall of the bottom end of the slurry crystallization tank 5. The end of the rotating tube 102 is rotatably connected to the middle of the strip plate 1011. The end of the rotating tube 102 that passes through the outside of the strip plate 1011 is rotatably connected to the exhaust pipe 1012, and the rotatable connection is installed. A second rotary joint 1013 is installed, and a rotating tube 102 is distributed on the outer wall of one end of the slurry crystallization tank 5 and is connected with a folding coil 1014. A stirring impeller 1015 is distributed and fixed on the outer wall of the rotating tube 102 located between the folding coils 1014. After the fine crystal slurry is input into the slurry crystallization tank 5 through the pumping pipe 8, the control motor 106 drives the second bevel gear 107 to rotate. Under the cooperation of the second bevel gear 107 and the first bevel gear 104, the rotating tube 102 is driven to rotate, thereby driving the turbine impeller 103 in the turbine disc 101 to rotate, and the centrifugal force generated is transmitted through the second input The steam pipe 1010 is used to suck the hot steam generated by the steam generator 2. The hot steam is input into the rotating tube 102 through the elbow 108 and the first rotary joint 109, that is, input into the folding coil 1014 inside the slurry crystallization tank 5. The high-temperature steam is used as a heat source to re-crystallize the fine crystal slurry in the slurry crystallization tank 5. The rotation of the rotating tube 102 also drives the folding coil 1014 and the stirring impeller 1015 to rotate. The stirring impeller 1015 slowly stirs the fine crystal slurry in the slurry crystallization tank 5, so that the slurry in the slurry crystallization tank 5 is fully heated, which is beneficial to the separation of the slurry solvent in the slurry crystallization tank 5 and is beneficial to increasing the crystallization.

[0041] Furthermore, bearings are embedded and installed at the rotating connection between the rotating tube 102 and the slurry crystallization tank 5 and the strip plate 1011. The setting of the bearings makes the rotating tube 102, the folded coil 1014 and the stirring impeller 1015 rotate more smoothly.

[0042] Furthermore, the rotating tube 102 and the folded coil 1014 are both heat-conducting copper tubes, which are beneficial to heat conduction in the slurry crystallization tank 5 and improve the crystallization efficiency.

[0043] In this embodiment, refer to Figure 1 , Figure 2 and Figure 3 The linkage sealing and anti-blocking assembly 11 includes a through inner groove 111 opened on the top inner wall of the top cover 903, and the top inner wall of the through inner groove 111 is filled with an air bag 112. A holding plate 113 is provided on the inner wall of the through inner groove 111 below the air bag 112, and a sealing gasket 114 is attached to the top outer wall of the holding plate 113. One end of the exhaust pipe 1012 passes through the through inner groove 111 and is connected to the inside of the air bag 112. A pressure relief pipe 115 is connected on the top outer wall of the air bag 112, and the pressure relief pipe 115 passes through the top inner wall of the top cover 903. A pressure relief valve 116 is mounted on the outer wall of one end of the cover 903, a second turbine 117 is fixed on the top outer wall of the top cover 903, one end of the pressure relief pipe 115 passes through the inside of the second turbine 117, a return steam pipe 118 is connected to the outer wall of the other side of the second turbine 117, and the other end of the return steam pipe 118 is connected to the inside of the steam generator 2, a stirring shaft 119 is rotatably mounted on the top inner wall of the top cover 903, and the stirring shaft 119 is coaxially connected to the second turbine 117, and the stirring shaft 119 passes through the two ends of the inner end of the screen cylinder 902. A cleaning brush 1110 is fixed on the side outer wall. The high-temperature steam is input into the rotating tube 102 and then discharged at the exhaust pipe 1012 through the second rotating joint 1013. The discharged high-temperature steam is input into the airbag 112. The airbag 112 expands in the through inner groove 111 and drives the holding plate 113 to move downward, so that the sealing gasket 114 at the bottom of the holding plate 113 fits tightly above the screen cylinder 902, thereby ensuring that the screen cylinder 902 is installed tightly. When the air pressure in the airbag 112 reaches the threshold of the pressure relief valve 116, the pressure relief valve 116 is used to release the pressure relief valve 116. The remaining steam is discharged through the pressure relief pipe 115 and input into the second turbine 117, and is discharged through the return steam pipe 118 and flows back into the steam generator 2, thereby realizing steam circulation and reducing energy consumption. During the circulation of steam in the second turbine 117, the steam will drive the second turbine 117 and the stirring shaft 119 to rotate, thereby driving the cleaning brush 1110 to circulate inside the screen cylinder 902, thereby cleaning the inner wall of the screen cylinder 902, effectively avoiding the occurrence of blockage problems in the screen cylinder 902, and facilitating the pumping of the crystal slurry.

[0044] Furthermore, a through hole is provided in the pressing plate 113 corresponding to the stirring shaft 119 , and the provision of the through hole does not affect the pressing and lifting of the pressing plate 113 .

[0045] Furthermore, the top of the screen cylinder 902 is inserted into the through inner groove 111, and the top of the screen cylinder 902 is in contact with the bottom outer wall of the sealing gasket 114, so that the sealing gasket 114 at the bottom of the holding plate 113 fits tightly on the top of the screen cylinder 902, thereby ensuring that the screen cylinder 902 is installed tightly.

[0046] Furthermore, the bristles of the cleaning brush 1110 are soft, and both sides of the cleaning brush 1110 are in contact and connected with the inner wall of the screen cylinder 902, which is beneficial to the cleaning of the inner wall of the screen cylinder 902.

[0047] Working principle: When the present invention is in use, during the use of the integrated device for promoting crystal growth, during the ammonia desulfurization process, the exhaust gas is desulfurized in the desulfurization crystallization tower 1, and the hot steam generated by the steam generator 2 is input into the desulfurization crystallization tower 1 through the first steam pipe 3. The high-temperature steam is used as a heat source to achieve concentration and enrichment of the solution in the desulfurization crystallization tower 1, so that the slurry in the desulfurization crystallization tower 1 is crystallized and precipitated. During the process, the feed pump 6 works to pump out the slurry with fine crystals in the desulfurization crystallization tower 1 through the suction pipe 7, and input it into the slurry crystallization tank 5 through the pump pipe 8. The slurry passes through the barrel 901 in the middle of the pump pipe 8, and is screened by the screen barrel 902 inside the barrel 901, so that large particles that can be separated by the centrifuge in the later stage can be crystallized. The small particles that cannot be separated by the centrifuge and the slurry are blocked in the discharge port 4 and discharged directly in the later stage, so that the small particles of crystal and slurry that cannot be separated by the centrifuge are input into the slurry crystallization tank 5 through the pumping pipe 8, which can ensure the size of the crystal particles and facilitate the subsequent separation of crystals. Then the motor 106 is controlled to work and drive the second bevel gear 107 to rotate. Under the cooperation of the second bevel gear 107 and the first bevel gear 104, the rotating tube 102 will be driven to rotate, thereby driving the turbine impeller 103 in the turbine disc 101 to rotate. The centrifugal force generated is used to suck the hot steam generated by the steam generator 2 through the second steam transmission pipe 1010. The hot steam is input into the rotating tube 102 through the elbow 108 and the first rotary joint 109, that is, input into the folded coil inside the slurry crystallization tank 5. 1014, high-temperature steam is used as a heat source to perform re-crystallization of fine crystal slurry in the slurry crystallization tank 5. During the rotation of the rotating tube 102, the folded coil 1014 and the stirring impeller 1015 are also driven to rotate. The stirring impeller 1015 slowly stirs the fine crystal slurry in the slurry crystallization tank 5, so that the slurry in the slurry crystallization tank 5 is fully heated, which is beneficial to the separation of the slurry solvent in the slurry crystallization tank 5 and the increase of crystallization. After the high-temperature steam is input into the rotating tube 102, it is discharged at the exhaust pipe 1012 through the second rotary joint 1013. The discharged high-temperature steam is input into the airbag 112. The airbag 112 expands in the through inner groove 111 and drives the holding plate 113 to move downward, so that the bottom of the holding plate 113 The sealing gasket 114 fits tightly on the top of the screen cylinder 902 to ensure that the screen cylinder 902 is installed tightly. When the air pressure in the airbag 112 reaches the threshold of the pressure relief valve 116, the excess steam is discharged through the pressure relief pipe 115 and input into the second turbine 117, and discharged through the return steam pipe 118 and refluxed into the steam generator 2, thereby realizing steam circulation and reducing energy consumption. During the circulation of steam in the second turbine 117, the steam will drive the second turbine 117 and the stirring shaft 119 to rotate, thereby driving the cleaning brush 1110 to circulate inside the screen cylinder 902, thereby cleaning the inner wall of the screen cylinder 902, effectively avoiding the occurrence of blockage problems in the screen cylinder 902, and facilitating the pumping of the crystal slurry.

[0048] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An integrated device for promoting crystal growth, characterized in that: The invention comprises a desulfurization crystallization tower (1), wherein a steam generator (2) is arranged on one side outer wall of the desulfurization crystallization tower (1), a steam transmission end of the steam generator (2) is connected to a first steam transmission pipe (3), and one end of the first steam transmission pipe (3) passes through the interior of the desulfurization crystallization tower (1), a discharge port (4) is connected through the bottom outer wall of the desulfurization crystallization tower (1), a slurry crystallization tank (5) is arranged on one side outer wall of the desulfurization crystallization tower (1), and one side outer wall of the discharge port (4) A feed pump (6) is installed on the feed pump (6), the feed suction end of the feed pump (6) is connected to a feed suction pipe (7), and one end of the feed suction pipe (7) is connected to the inside of the discharge port (4), the feed pump end of the feed pump (6) is connected to a feed pump pipe (8), and one end of the feed pump pipe (8) is connected to the inside of the slurry crystallization tank (5), a particle screen component (9) is arranged in the middle of the feed pump pipe (8), and a linkage stirring crystallization component (10) is arranged on the top inner wall of the slurry crystallization tank (5); The particle screening component (9) comprises a barrel (901) connected to the outer wall of the middle part of the pump pipe (8), a screening barrel (902) is inserted into the barrel (901), a top cover (903) is arranged on the top outer wall of the barrel (901), an inner wall of the bottom of the top cover (903) is provided with an internal thread (904), an outer wall of the top end of the barrel (901) is provided with an external thread (905), and a linkage sealing anti-blocking component (11) is arranged on the top outer wall of the top cover (903); The linked stirring crystallization assembly (10) comprises a turbine disc (101) fixed on the outer wall of the top of the slurry crystallization tank (5); the turbine disc (101) is rotatably connected to a rotating tube (102) inside; a turbine impeller (103) is fixedly mounted on the outer wall of the rotating tube (102) located at one end inside the turbine disc (101); a first bevel gear (104) is fixedly mounted on the outer wall of the rotating tube (102) passing through the outer wall of one end outside the turbine disc (101); a mounting plate (105) is fixedly mounted on the outer wall of one side of the top of the turbine disc (101); a motor (106) is embedded and mounted on the outer wall of one side of the mounting plate (105); a second bevel gear (107) is fixedly mounted on one end of the output shaft of the motor (106); the first bevel gear (104) and the second bevel gear (107) are meshingly connected; a curved tube (108) is connected through the outer wall of one side of the turbine disc (101); the curved tube (108) and The end of the rotating tube (102) is rotatably connected, and a first rotating joint (109) is installed on the rotatable connection. A second steam transmission pipe (1010) is connected through the outer wall of the other side of the turbine disc (101), and one end of the second steam transmission pipe (1010) is connected to the steam transmission end of the steam generator (2). A strip plate (1011) is fixed on the inner wall of the bottom end of the slurry crystallization tank (5). The end of the rotating tube (102) is rotatably connected to the middle of the strip plate (1011). The end of the rotating tube (102) that passes through the outside of the strip plate (1011) is rotatably connected to an exhaust pipe (1012), and a second rotating joint (1013) is installed at the rotatable connection. A folding coil (1014) is distributed and connected on the outer wall of one end of the rotating tube (102) that passes through the inside of the slurry crystallization tank (5). A stirring impeller (1015) is distributed and fixed on the outer wall of the rotating tube (102) located between the folding coils (1014).

2. The integrated crystal growth promoting device according to claim 1, characterized in that: The linkage sealing and anti-blocking component (11) comprises a through inner groove (111) provided on the top inner wall of the top cover (903); the top inner wall of the through inner groove (111) is filled with an air bag (112); a holding plate (113) is provided on the inner wall of the through inner groove (111) below the air bag (112); a sealing gasket (114) is fitted and connected to the top outer wall of the holding plate (113); one end of the exhaust pipe (1012) passes through the through inner groove (111) and is connected to the inside of the air bag (112); a pressure relief pipe (115) is connected to the top outer wall of the air bag (112); the pressure relief pipe (115) passes through the outer wall of the top cover (903); A pressure relief valve (116) is mounted on the outer wall of one end of the top cover (903); a second turbine (117) is fixed on the top outer wall of the top cover (903); one end of the pressure relief pipe (115) passes through the interior of the second turbine (117); a steam return pipe (118) passes through the outer wall of the other side of the second turbine (117); and the other end of the steam return pipe (118) is connected to the interior of the steam generator (2); a stirring shaft (119) is rotatably mounted on the inner wall of the top of the top cover (903); the stirring shaft (119) and the second turbine (117) are coaxially connected; and cleaning brushes (1110) are fixed on the outer walls of both sides of the stirring shaft (119) passing through one end of the interior of the screen cylinder (902).

3. An integrated device for promoting crystal growth as claimed in claim 2, characterized in that: The holding plate (113) is provided with a through hole corresponding to the stirring shaft (119).

4. The integrated crystal growth promoting device according to claim 2, characterized in that: The top end of the screen cylinder (902) is inserted into the through inner groove (111), and the top end of the screen cylinder (902) is in contact with the bottom outer wall of the sealing gasket (114).

5. The integrated crystal growth promoting device according to claim 2, characterized in that: The bristles of the cleaning brush (1110) are soft, and both sides of the cleaning brush (1110) are in contact with and connected to the inner wall of the screen cylinder (902).

6. The integrated crystal growth promoting device according to claim 1, characterized in that: The rotating connection between the rotating tube (102) and the slurry crystallization tank (5) and the strip plate (1011) is inlaid with bearings.

7. The integrated crystal growth promoting device according to claim 1, characterized in that: The rotating tube (102) and the folded coil (1014) are both heat-conducting copper tubes.

8. The integrated crystal growth promoting device according to claim 1, characterized in that: An annular groove (12) is provided on the bottom outer wall of the screen cylinder (902), and an annular protrusion (13) is fixed on the bottom inner wall of the cylinder tank (901).

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