Concentration and crystallization device capable of reducing chloride ion concentration

Abstract

The invention relates to the technical field of ammonia desulfurization, in particular to a concentration and crystallization device capable of reducing chloride ion concentration, comprising: a desulfurization tower used for removing sulfur element in raw flue gas and connected with equipment for generating flue gas through a pipeline; the crystallization chlorine reduction tower is mounted on one side of the desulfurization tower and is connected with the pipeline through a gas inlet pipe; the fan is mounted in the gas inlet pipe and is used for sucking a part of raw flue gas into the crystallization chlorine reduction tower; the crystallization storage tank is mounted on one side of the crystallization chlorine-reducing tower and is connected with the crystallization chlorine-reducing tower through a connecting pipe; and the separation assembly is arranged in the crystallization storage tank and is used for driving the crystallization particles to quickly settle towards the bottom of the crystallization storage tank. According to the concentration and crystallization device provided by the invention, chloride ions in a desulfurization system and an ammonium sulfate product are reduced in a flue gas shunting manner, and a plurality of components such as the lifting plate, the transverse plate and the filter plate are matched, so that the filter plate is positioned on the outer side of the moving tank in the downward moving process of the lifting plate, and more crystals are driven to settle to the bottom of the crystal storage tank.

Description

Technical Field

[0001] The present invention relates to the technical field of ammonia desulfurization, and in particular to a concentration and crystallization device capable of reducing the concentration of chloride ions. Background Technology

[0002] Ammonia desulfurization is a high-efficiency and low-energy wet desulfurization method. After the flue gas passes through the dust collector to remove dust, it enters the pretreatment system to reduce the temperature of the flue gas to improve the desulfurization efficiency. The pretreated flue gas enters the desulfurization tower, and a series of sprayers are set up in the desulfurization tower to spray ammonia water. The flue gas fully contacts the ammonia water through the sprayer and reacts to generate ammonium sulfite and ammonium sulfate. The ammonium sulfate solution discharged from the bottom of the desulfurization tower is filtered, dried and other processes to finally obtain solid ammonium sulfate crystals.

[0003] Currently, there are problems such as solid wear in the concentration section, accumulated corrosion of chloride ions, and excessive chlorine content in the product in the field of ammonia desulfurization. The reason is that the flue gas and the solution are 100% in contact and mixed, causing all the chloride ions in the flue gas to enter the concentration section and the product, resulting in an increase in the chloride ion concentration in the concentration section and unqualified products. The common solutions in the current industry include: evaporation crystallization and spray drying. However, both of the above concepts have the problem of high energy consumption. Evaporation crystallization consumes 1.1 tons of low-pressure steam for evaporating 1 ton of water, and spray drying consumes 4.7 tons of low-pressure steam for evaporating 1 ton of water. The operating energy consumption problem limits the promotion and application of chlorine reduction technology. In order to minimize the energy consumption of the chloride ion control system, it is proposed to use part of the original flue gas heat to reduce the chloride ions in the desulfurization system and the product through flue gas diversion. This process basically does not increase steam consumption. In addition, the mixture of ammonium sulfate crystals and solution discharged from the crystallization chlorination tower will be pumped into the subsequent container through a pipeline for solid-liquid separation. An outlet is opened at a higher position of the container for solution discharge. The height of the end of the pipeline for the circulation of crystals and mixtures in the container also needs to be noted. If the height is high and close to the outlet, the mixture will flow toward the outlet due to the impact of water flow after entering the container, which is not conducive to the sedimentation of crystals; if the height is low and far from the outlet, but close to the crystal particles that have settled at the bottom of the container, the crystals that have settled at the bottom will float back into the solution due to the impact of water flow after the mixture enters, which is also not conducive to the sedimentation of crystals. SUMMARY OF THE INVENTION

[0004] Based on this, it is necessary to provide a concentrated crystallization device that can reduce the chloride ion concentration in the crystals and allow the crystal particles to settle quickly in response to the above technical problems.

[0005] The present invention provides a concentration crystallization device capable of reducing the concentration of chloride ions, comprising: The desulfurization tower is used to remove sulfur from the original flue gas and is connected to the equipment that generates flue gas through a pipeline; The crystallization chlorine reduction tower is installed on one side of the desulfurization tower and is connected to the pipeline through an inlet pipe; The fan is installed in the inlet pipe and is used to draw a part of the raw flue gas into the crystallization chlorine reduction tower; The crystallization storage tank is installed on one side of the crystallization chlorine reduction tower, and the two are connected through a connecting pipe; One end of the reflux pipe penetrates through the side wall of the crystallization storage tank, and the other end penetrates through the side wall of the crystallization chlorine reduction tower; The separation assembly is arranged in the crystallization storage tank and is used to drive the crystallization particles to quickly settle to the bottom of the crystallization storage tank.

[0006] In one embodiment, the separation assembly includes a lifting rod. The top of the lifting rod movably penetrates through the top of the crystallization storage tank. A fixing frame is fixedly arranged at the bottom of the lifting rod. A rotating rod is rotatably arranged on the fixing frame. A lifting plate is fixedly sleeved on the outer side of the rotating rod. A notch is formed in the center of the lifting plate. A plurality of cross plates are linearly arranged in the notch. A moving groove is formed in the cross plate. A filter plate is movably arranged in the moving groove. A plurality of filter holes are formed in the filter plate.

[0007] In one embodiment, a vertical groove is formed on one side of the fixing frame. The rotating rod movably penetrates through the vertical groove. A driving gear is movably clamped on the outer side of the part of the rotating rod located in the vertical groove. A circular ring is fixedly arranged on one side of the driving gear. A plurality of sawtooth grooves are annularly arranged on the circular ring. A sawtooth block is movably clamped in the sawtooth groove. A positioning spring is fixedly connected between the sawtooth block and the rotating rod.

[0008] In one embodiment, driving racks are fixedly arranged on both sides of the driving gear in the vertical groove. The ends of the two driving racks with teeth are just opposite, one is at the top and the other is at the bottom. One end of each of the two driving racks is fixedly connected to the inner wall of the crystallization storage tank. The driving racks are meshed and driven with the driving gear.

[0009] In one embodiment, a groove is formed on one side of the lifting plate. A plurality of vertical rods are rotatably arranged in the groove. The number of the vertical rods is the same as that of the cross plates. A sliding groove is formed on the inner wall of the lifting plate at the position of the groove. The sliding groove is communicated with the moving groove. A sliding plate is slidably arranged in the sliding groove. One end of the sliding plate is fixedly connected to the filter plate, and the other end is fixedly provided with a connecting rack. A moving rack is movably arranged in the groove. The vertical rod is located between the connecting rack and the moving rack and a rotating gear is fixedly arranged at the top. The rotating gear is meshed and driven with the connecting rack and the moving rack.

[0010] In one embodiment, the lifting plate is provided with a movable groove above the movable groove, a brush plate is movably provided in the movable groove, a limit rod is fixedly provided at one end of the brush plate, the limit rod is movably connected to the sliding groove, a limit plate is fixedly provided on the top of the sliding plate, a wave groove is provided on the limit plate, the limit rod is movably connected to the wave groove, and the top of the brush plate is connected to the inner wall of the movable groove via a reset spring.

[0011] In one embodiment, a cross bar is arranged in the groove for lateral symmetry and rotation, and two cross bars are located on both sides of the rotating rod. A cam is fixedly arranged at one end of the cross bar, and a movable frame is arranged on the outer side of the cam. Moving rods are fixedly arranged on both sides of the moving frame. A positioning frame is arranged on the outer side of the moving rod, and the positioning frame is fixedly connected to the inner wall of the groove, and one of the moving rods is fixedly connected to the moving rack on the same side.

[0012] In one embodiment, a positioning gear is movably sleeved on the outer side of the rotating rod, a cylinder is fixedly arranged on one side of the positioning gear, the cylinder is movably sleeved on the outer side of the rotating rod, and one end of the cylinder away from the positioning gear movably passes through one side of the lifting plate and is fixedly connected to the fixing frame.

[0013] In one embodiment, the crossbar is located on one side of the cam and is fixed with a driven gear, and the driven gear is meshed with the positioning gear for transmission.

[0014] In one embodiment, a cylinder is rotatably arranged on the top of the crystallization storage tank, a curved groove is provided on the cylinder, a positioning rod is slidably arranged in the curved groove, and one end of the positioning rod away from the cylinder is fixedly connected to the lifting rod.

[0015] The above-mentioned concentrated crystallization device capable of reducing the concentration of chloride ions realizes that the filter plate is located outside the moving tank during the downward movement of the lifting plate through the cooperation of the lifting plate, the horizontal plate, the filter plate and other components, which can increase the contact area with the crystals and drive more crystals to settle to the bottom of the crystallization storage tank; the filter holes can be cleaned through the cooperation of the limit rod, the wave groove and the brush plate and other components, which will not affect the circulation of the solution. Brief Description of the Figures

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the structure of the fan in the present invention; Figure 3 is a schematic diagram of the external structure of the crystallization storage tank in the present invention; Figure 4 is a schematic diagram of the internal structure of the crystallization storage tank in the present invention; Figure 5 is a schematic diagram of the structure of the lifting plate in the present invention; Figure 6 is a schematic diagram of the bottom structure of the lifting plate in the present invention; Figure 7 For Figure 6 Enlarged schematic diagram of part A; Figure 8 is a schematic diagram of the structure of the ring in the present invention; Figure 9 is a schematic diagram of the structure of the groove in the present invention; Figure 10 For Figure 9 Enlarged schematic diagram of part B; Figure 11 is a schematic diagram of the structure of the movable slot in the present invention; Figure 12 is a schematic diagram of the structure of the return spring in the present invention; Figure 13 is a schematic diagram of the structure of the cam in the present invention.

[0018] Reference Numbers: 1. Desulfurization tower; 2. Pipeline; 3. Crystallization dechlorination tower; 4. Air inlet pipe; 5. Fan; 6. Crystallization storage tank; 7. Connecting pipe; 8. Reflux pipe; 9. Separation assembly; 91. Lifting rod; 92. Fixed frame; 921. Vertical slot; 93. Rotating rod; 94. Lifting plate; 941. Groove; 942. Sliding slot; 943. Movable slot; 95. Notch; 96. Horizontal plate; 97. Moving slot; 98. Filter plate; 99. Filter hole; 10. Driving gear; 11. Ring; 111. Sawtooth groove; 12. Sawtooth block; 13. Positioning spring; 14. Driving rack; 15. Vertical rod; 16. Sliding plate; 17. Connecting rack; 18. Moving rack; 19. Rotating gear; 20. Brush plate; 21. Limiting rod; 22. Limiting plate; 221. Wave groove; 23. Reset spring; 24. Crossbar; 25. Cam; 26. Moving frame; 27. Moving rod; 28. Positioning frame; 29. ​​Positioning gear; 30. Cylinder; 31. Driven gear; 32. Column; 321. Curved groove; 33. Positioning rod. Specific implementation method

[0019] ​In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. 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.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0023] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0024] The following combination Figure 1-Figure 13 Describe a concentrating crystallization device capable of reducing the concentration of chloride ions of the present invention.

[0025] ​Figure 1-Figure 4 As shown, in one embodiment, it includes a desulfurization tower 1, a crystallization dechlorination tower 3, a fan 5, a crystallization storage tank 6 and a separation component 9.

[0026] Wherein, the desulfurization tower 1 is connected to the flue gas generating equipment through a pipeline 2; an air inlet pipe 4 is also connected between the crystallization dechlorination tower 3 and the pipeline 2, and a fan 5 is installed in the air inlet pipe 4, which can draw a part of the original flue gas into the crystallization dechlorination tower 3, and the crystallization storage tank 6 and the crystallization dechlorination tower 3 are connected by a connecting pipe 7, which is used to draw the mixture of crystals and solution into the crystallization storage tank 6 for separation, and the reflux pipe 8 connects the crystallization storage tank 6 and the crystallization dechlorination tower 3, and the separation component 9 is arranged in the crystallization storage tank 6 for the rapid sedimentation of crystals.

[0027] Specifically, the original flue gas enters the desulfurization tower 1 through the pipeline 2 for spraying and other operations to remove the sulfur element contained therein. In the prior art, the flue gas is 100% contacted and mixed with the solution, resulting in all the chloride ions in the flue gas entering the concentration section and the product, resulting in unqualified products. In this application, a part of the flue gas can be drawn into the crystallization dechlorination tower 3 through the fan 5, and the flue gas ratio is less than 50% of the original flue gas. Subsequently, the ammonium sulfate solution is drawn from the previous processing container into the crystallization dechlorination tower 3, which can effectively reduce the content of chloride ions in the crystals by more than 50%, and the generated The mixture of crystals and solution is pumped into the crystallization storage tank 6 through the connecting pipe 7. The crystals fall to the bottom of the crystallization storage tank 6 due to gravity, and the solution flows back to the crystallization dechlorination tower 3 through the reflux pipe 8. After the solid content in the crystallization storage tank reaches 20%, it is sent to the ammonium sulfate post-system for discharge. The crystals are subsequently processed by cyclones, centrifuges, dryers, packaging machines and other equipment to become ammonium sulfate products. After the mixture enters the crystallization storage tank 6, it is impacted by the water flow, and some crystals may not settle quickly. The separation component 9 can be used to accelerate the movement of the crystals to the bottom of the crystallization storage tank 6 and will not be discharged through the reflux pipe 8.

[0028] See Figure 4-Figure 6 and Figure 11-Figure 12 As shown, in this embodiment, the separation component 9 includes a lifting rod 91, the top of the lifting rod 91 movably penetrates the top of the crystallization storage tank 6, a fixed frame 92 is fixedly arranged at the bottom of the lifting rod 91, a rotating rod 93 is rotatably arranged on the fixed frame 92, a lifting plate 94 is fixedly sleeved on the outer side of the rotating rod 93, a notch 95 is opened at the center of the lifting plate 94, a plurality of horizontal plates 96 are linearly arranged in the notch 95, a movable groove 97 is opened in the horizontal plate 96, a filter plate 98 is movably arranged in the movable groove 97, and a plurality of filter holes 99 are opened on the filter plate 98.

[0029] Specifically, after the mixture enters the crystal storage tank 6, the lifting rod 91 moves up and down reciprocatingly. The lifting rod 91 moves up and down to drive the fixed frame 92, the rotating rod 93, the lifting plate 94, the cross plate 96 and the filter plate 98 to move up and down reciprocatingly. When the lifting plate 94 moves downward, the filter plate 98 is located outside the moving groove 97, blocking the notch 95. When the lifting plate 94 moves downward, it drives the crystals to move downward together. The filter hole 99 is for the solution to flow through, which can reduce the water resistance of the lifting plate 94 during the descent process. When the lifting plate 94 drops to the lowest point, the rotating rod 93 is rotated 90 degrees clockwise, and the lifting plate 94 also rotates accordingly, from horizontal to vertical. At the same time, the filter plate 98 Move to the moving groove 97, then keep the lifting plate 94 vertical and the filter plate 98 in the moving groove 97 and move upward, so that the crystals will not be driven to move upward during the rising process, and the contact area between the lifting plate 94 and the crystals will be reduced. In addition, the lifting plate 94 in the vertical state will not drive the mixture to produce large water flow fluctuations, reducing the impact on the crystal sedimentation. After the lifting plate 94 rises to the highest point, the rotating rod 93 and the lifting plate 94 are rotated 90 degrees clockwise again, and the lifting plate 94 becomes horizontal again. The filter plate 98 moves to the outside of the moving groove 97 again, and then keeps this state and moves downward, so that more crystals can be pushed to the bottom of the crystal storage tank 6 for deposition.

[0030] See Figure 6-Figure 8 As shown, in this embodiment, a vertical slot 921 is provided on one side of the fixing frame 92, and a rotating rod 93 movably penetrates the vertical slot 921. A driving gear 10 is movably connected to the outer side of the rotating rod 93 located in the vertical slot 921. A circular ring 11 is fixedly provided on one side of the driving gear 10. A sawtooth groove 111 is provided in an annular array on the circular ring 11. A sawtooth block 12 is movably connected to the sawtooth block 12 and a positioning spring 13 is fixedly connected between the sawtooth block 12 and the rotating rod 93.

[0031] Specifically, the fixing frame 92 moves downward to drive the driving gear 10 to move downward. When the driving gear 10 reaches the lowest point, it rotates 90 degrees clockwise, and the ring 11 also rotates together in the vertical groove 921. When rotating in this direction, the sawtooth groove 111 and the sawtooth block 12 are in a clamping state, and the ring 11 will drive the rotating rod 93 to rotate synchronously, and the lifting plate 94 will also turn from a horizontal state to a vertical state. Then, when moving upward, the driving gear 10 is rotated 90 degrees counterclockwise. When rotating in this direction, the sawtooth groove 111 is not clamped with the sawtooth block 12. During the rotation of the ring 11, the sawtooth block 12 and the positioning spring 13 will be squeezed downward, and the rotating rod 93 and the lifting plate 94 will not rotate, so the lifting plate 94 can be kept in a vertical state and move upward.

[0032] See Figure 6 and Figure 7As shown, in this embodiment, driving racks 14 are fixedly arranged on both sides of the driving gear 10 in the vertical slot 921, and the two driving racks 14 have one end of the rack just opposite, one at the top and one at the bottom. One end of the two driving racks 14 is fixedly connected to the inner wall of the crystallization storage tank 6, and the driving racks 14 are meshed with the driving gear 10 for transmission.

[0033] Specifically, when the fixed frame 92 moves downward, the driving gear 10 meshes with the driving rack 14 on one side, and the driving gear 10 rotates clockwise, which can drive the rotating rod 93 and the lifting plate 94 to rotate 90 degrees. Then, when moving upward, the driving gear 10 rotates counterclockwise under the action of the same driving rack 14, and the rotating rod 93 and the lifting plate 94 do not rotate. Then, when the fixed frame 92 moves upward and reaches the highest point, the driving gear 10 meshes with the driving rack 14 on the other side, and the driving gear 10 rotates 90 degrees clockwise again, and the rotating rod 93 and the lifting plate 94 rotate 90 degrees again, and the lifting plate 94 becomes horizontal again, which can increase the contact area with the crystal, and can drive more crystals to move downward. Then, during the downward movement, the driving gear 10 will mesh with the driving rack 14 on this side again, and the driving gear 10 rotates counterclockwise, and the rotating rod 93 and the lifting plate 94 remain unchanged.

[0034] See Figure 9-Figure 11 As shown, in this embodiment, a groove 941 is provided on one side of the lifting plate 94, and a plurality of vertical rods 15 are rotatably arranged in the groove 941. The number of the vertical rods 15 is the same as the number of the horizontal plate 96. The lifting plate 94 is provided with a sliding groove 942 on the inner wall of the groove 941. The sliding groove 942 is communicated with the moving groove 97. A sliding plate 16 is slidably arranged in the sliding groove 942. One end of the sliding plate 16 is fixedly connected to the filter plate 98, and a connecting rack 17 is fixedly arranged at the other end. A moving rack 18 is movably arranged in the groove 941. The vertical rod 15 is located between the connecting rack 17 and the moving rack 18, and a rotating gear 19 is fixedly arranged on the top. The rotating gear 19 is meshed with the connecting rack 17 and the moving rack 18 for transmission.

[0035] Specifically, when the lifting plate 94 moves downward to the lowest position, the moving rack 18 moves horizontally, and the movement of the moving rack 18 in the groove 941 drives the rotating gear 19 to rotate, thereby driving the connecting rack 17 and the sliding plate 16 to slide, and the sliding plate 16 slides along the sliding groove 942 to drive the filter plate 98 to move toward the moving groove 97, and then maintains this state and moves upward to the highest position, and moves the moving rack 18 in the reverse direction, and the moving rack 18 drives the rotating gear 19 to rotate in the reverse direction, thereby causing the connecting rack 17 and the sliding plate 16 to slide in the reverse direction, and the filter plate 98 will move to the outside of the moving groove 97 again, and then maintain this state and move downward, driving the crystals to settle to the bottom of the crystal storage tank 6, and the vertical rod 15 provides support for the rotating gear 19.

[0036] SeeFigure 10-Figure 12 As shown in the figure, in this embodiment, the lifting plate 94 is provided with a movable groove 943 above the movable groove 97, and a brush plate 20 is movably provided in the movable groove 943. A limit rod 21 is fixedly provided at one end of the brush plate 20, and the limit rod 21 is movably connected with the sliding groove 942. A limit plate 22 is fixedly provided on the top of the sliding plate 16, and a wave groove 221 is provided on the limit plate 22. The limit rod 21 is movably connected with the wave groove 221, and the top of the brush plate 20 is connected to the inner wall of the movable groove 943 through a reset spring 23.

[0037] Specifically, the sliding plate 16 slides along the sliding groove 942 to drive the filter plate 98 to move into the moving groove 97. The movement of the sliding plate 16 will also drive the limit plate 22 to move. During the movement of the limit plate 22, the limit rod 21 will be driven to move up and down through the action of the wave groove 221. The up and down reciprocating movement of the limit rod 21 will drive the brush plate 20 to move up and down along the movable groove 943. During the movement of the brush plate 20, the filter holes 99 on the filter plate 98 will be cleaned to prevent the filter holes 99 from being blocked by impurities in the mixture and to avoid affecting the passage of water. The reset spring 23 ensures the stability of the brush plate 20 during the up and down movement.

[0038] See Figure 10-Figure 11 and Figure 13 As shown, in this embodiment, a crossbar 24 is symmetrically rotated in the groove 941, and two crossbars 24 are located on both sides of the rotating rod 93. A cam 25 is fixedly arranged at one end of the crossbar 24, and a moving frame 26 is movably sleeved on the outer side of the cam 25. Moving rods 27 are fixedly arranged on both sides of the moving frame 26. A positioning frame 28 is movably sleeved on the outer side of the moving rod 27. The positioning frame 28 is fixedly connected to the inner wall of the groove 941, and one of the moving rods 27 is fixedly connected to the moving rack 18 on the same side.

[0039] ​​Specifically, when the fixing frame 92 moves to the highest or lowest position, the rotating rod 93 and the lifting plate 94 will both rotate 90 degrees clockwise. During this process, the cross bar 24 will rotate 180 degrees clockwise. The rotation of the cross bar 24 will drive the cam 25 to rotate. The rotation of the cam 25 will drive the moving frame 26 to move horizontally. The movement of the moving frame 26 will drive the moving rod 27 to move. The movement of the moving rod 27 will drive the moving rack 18 to move, thereby realizing the rotation of the rotating gear 19. The rotation of the rotating gear 19 will drive the connecting rack 17 to move, thereby realizing the lateral movement of the filter plate 98. During the movement of the plate 98, it will be cleaned by the brush plate 20. Then, when the rotating rod 93 rotates 90 degrees clockwise again, the cross bar 24 rotates 180 degrees clockwise. The cam 25 continues to rotate, which will drive the moving frame 26 to move in the opposite direction to the initial position. The moving rod 27 and the moving rack 18 will also move in the opposite direction, so that the filter plate 98 returns to the initial position, which can ensure that when the lifting plate 94 moves downward, the filter plate 98 is located outside the moving groove 97, and when the lifting plate 94 moves upward, the filter plate 98 is located inside the moving groove 97. The positioning frame 28 provides support for the movement of the moving rod 27.

[0040] See Figure 13 As shown in the figure, in this embodiment, a positioning gear 29 is movably sleeved on the outer side of the rotating rod 93, and a cylinder 30 is fixedly arranged on one side of the positioning gear 29. The cylinder 30 is movably sleeved on the outer side of the rotating rod 93, and the end of the cylinder 30 away from the positioning gear 29 movably penetrates one side of the lifting plate 94 and is fixedly connected to the fixing frame 92.

[0041] Specifically, when the driving gear 10 is meshed with the driving rack 14 to drive the driving gear 10 to rotate clockwise, the rotating rod 93 will also rotate accordingly, and the lifting plate 94 will also rotate accordingly. The cylinder 30 and the positioning gear 29 remain stationary. During the rotation of the lifting plate 94, the cross bar 24 is also rotated synchronously. The rotation of the cross bar 24 will drive the cam 25 to rotate, thereby realizing the movement of the moving frame 26, the moving rod 27, and the moving rack 18, and then realizing the change of the position of the filter plate 98.

[0042] See Figure 1 As shown in the figure, in this embodiment, the cross bar 24 is located on one side of the cam 25 and is fixedly sleeved with a driven gear 31, and the driven gear 31 is meshed with the positioning gear 29 for transmission.

[0043] Specifically, during the rotation of the lifting plate 94, the crossbar 24 and the driven gear 31 will be driven to revolve around the positioning gear 29, and the driven gear 31 will mesh with the positioning gear 29. During the revolution, the driven gear 31 will also rotate, thereby driving the crossbar 24 and the cam 25 to rotate to change the position of the filter plate 98.

[0044] See ​ ​​​​​As shown, in this embodiment, a cylinder 32 is rotatably provided at the top of the crystallization storage tank 6. A curved groove 321 is formed in the cylinder 32. A positioning rod 33 is slidably and fittingly arranged in the curved groove 321. One end of the positioning rod 33 away from the cylinder 32 is fixedly connected to the lifting rod 91.

[0045] Specifically, when the cylinder 32 is rotated, the rotation of the cylinder 32 drives the rotation of the curved groove 321, thereby driving the positioning rod 33 and the lifting rod 91 to move up and down. By controlling the rotation speed of the cylinder 32, the speed of the reciprocating up and down movement of the lifting rod 91 can be adjusted.

[0046] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0047] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A concentration crystallization device capable of reducing the concentration of chloride ions, characterized in that: include: The desulfurization tower is used to remove sulfur from the original flue gas and is connected to the equipment that generates the flue gas through a pipeline; A crystallization chlorine reduction tower is installed on one side of the desulfurization tower and is connected to the pipeline through an air inlet pipe; A fan, installed in the air inlet pipe, for drawing a portion of the original flue gas into the crystallization chlorine reduction tower; A crystallization storage tank is installed on one side of the crystallization chlorine reduction tower, and the two are connected by a connecting pipe; A reflux pipe, one end of which passes through the side wall of the crystallization storage tank, and the other end of which passes through the side wall of the crystallization chlorine-reducing tower; The separation component is arranged in the crystallization storage tank and is used to drive the crystal particles to quickly settle to the bottom of the crystallization storage tank.

2. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 1, characterized in that: The separation component includes a lifting rod, the top of which movably passes through the top of the crystallization storage tank, a fixed frame is fixedly provided at the bottom of the lifting rod, a rotating rod is rotatably provided on the fixed frame, a lifting plate is fixedly sleeved on the outer side of the rotating rod, a notch is provided at the center of the lifting plate, a plurality of horizontal plates are linearly arrayed in the notch, a movable groove is provided in the horizontal plate, a filter plate is movably provided in the movable groove, and a plurality of filter holes are provided on the filter plate.

3. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 2, characterized in that: A vertical slot is provided on one side of the fixing frame, and the rotating rod movably passes through the vertical slot. A driving gear is movably connected to the outer side of the rotating rod located in the vertical slot. A circular ring is fixedly provided on one side of the driving gear. A sawtooth groove is provided in an annular array on the circular ring. A sawtooth block is movably connected in the sawtooth groove. A positioning spring is fixedly connected between the sawtooth block and the rotating rod.

4. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 3, characterized in that: Drive racks are fixedly arranged on both sides of the drive gear in the vertical groove, and the two drive racks have one end of the racks exactly opposite to each other, one is located at the top and the other is located at the bottom. One end of the two drive racks is fixedly connected to the inner wall of the crystallization storage tank, and the drive racks are meshed with the drive gear for transmission.

5. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 2, characterized in that: A groove is provided on one side of the lifting plate, and a plurality of vertical rods are rotatably arranged in the groove, the number of the vertical rods is the same as the number of the horizontal plates, and a sliding groove is provided on the inner wall of the groove on which the lifting plate is located, and the sliding groove is communicated with the moving groove, and a sliding plate is slidably arranged in the sliding groove, one end of the sliding plate is fixedly connected to the filter plate, and the other end is fixedly provided with a connecting rack, and a moving rack is movably arranged in the groove, the vertical rod is located between the connecting rack and the moving rack, and a rotating gear is fixedly arranged on the top, and the rotating gear is meshed with the connecting rack and the moving rack for transmission.

6. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 5, characterized in that: The lifting plate is provided with a movable groove above the movable groove, a brush plate is movably arranged in the movable groove, a limiting rod is fixedly arranged at one end of the brush plate, the limiting rod is movably connected with the sliding groove, a limiting plate is fixedly arranged on the top of the sliding plate, a wave groove is provided on the limiting plate, the limiting rod is movably connected with the wave groove, and the top of the brush plate is connected to the inner wall of the movable groove by a reset spring.

7. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 5, characterized in that: A cross bar is arranged in the groove for laterally symmetrical rotation, and two cross bars are located on both sides of the rotating rod. A cam is fixedly arranged at one end of the cross bar, and a movable frame is provided on the movable sleeve outside the cam. Moving rods are fixedly arranged on both sides of the moving frame, and a positioning frame is provided on the movable sleeve outside the moving rod. The positioning frame is fixedly connected to the inner wall of the groove, and one of the moving rods is fixedly connected to the moving rack on the same side.

8. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 7, characterized in that: A positioning gear is movably sleeved on the outer side of the rotating rod, a cylinder is fixedly provided on one side of the positioning gear, the cylinder is movably sleeved on the outer side of the rotating rod, and one end of the cylinder away from the positioning gear movably passes through one side of the lifting plate and is fixedly connected to the fixing frame.

9. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 8, characterized in that: The cross bar is located on one side of the cam and is fixedly sleeved with a driven gear, and the driven gear is meshed with the positioning gear for transmission.

10. A concentration and crystallization device capable of reducing chloride ion concentration according to claim 2, characterized in that: A cylinder is rotatably arranged on the top of the crystallization storage tank, a curved groove is opened on the cylinder, a positioning rod is slidably arranged in the curved groove, and one end of the positioning rod away from the cylinder is fixedly connected to the lifting rod.

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