Sulfur waste gas recovery device for soda production

Abstract

The application discloses a sulfur waste gas recovery device for soda production and relates to the field of soda production. The application comprises a recovery box, a gas inlet pipe is fixedly connected to the top of the middle of the recovery box, a gas outlet pipe is fixedly connected to the top of the recovery box away from the gas inlet pipe, a driving motor rotates to drive a driving rotating rod to rotate, the driving rotating rod rotates to drive a driving gear to rotate, the driving gear rotates to drive a connecting gear ring to rotate through meshing, the connecting gear ring rotates to drive a connecting pipe to rotate, the connecting pipe rotates to drive an installation plate and an installation base plate to rotate, thereby driving a first threaded rod and a second threaded rod to perform circumferential motion, the circumferentially moving first threaded rod and second threaded rod drive a lifting ring to rotate around the connecting pipe through the limiting effect of a moving threaded block and a limiting frame, the lifting ring rotates to drive a recovery bent pipe to perform circumferential motion, the circumferentially rotating recovery bent pipe continuously changes the gas inlet position, so that the waste gas is more uniformly contacted with the solution, and the desulfurization efficiency is improved.

Description

[0001] Technical field of soda ash production

[0002] The present application relates to the field of soda ash production, and particularly relates to a sulfur waste gas recovery device for soda ash production. BACKGROUND

[0003] Soda ash (Soda Ash), the chemical name of which is sodium carbonate (Na2CO3), is an important inorganic chemical raw material, and is widely used in the fields of glass, detergents, chemical manufacturing and the like. The physical form of soda ash is white powder or granules, and soda ash is easily soluble in water. The aqueous solution is strongly alkaline. According to the density, soda ash is divided into light soda ash and heavy soda ash. The latter is more difficult to cake, and is also known as soda, alkali, alkali ash or washing soda. The evolution of soda ash production technology embodies the trend from high pollution to green. The future development direction focuses on reducing energy consumption, reducing carbon emissions and resource recycling.

[0004] At present, a large amount of sulfur-containing waste gas is generated in the production process of soda ash. The sulfur-containing waste gas is harmful to the human body and the environment. The treatment method for the sulfur-containing waste gas is to pass the waste gas into lime slurry for desulfurization. However, the conventional waste gas passing method is relatively fixed, which can cause excessive local reaction of the desulfurization solution, and the parts far away from the desulfurization solution are not desulfurized, thereby reducing the utilization rate of the desulfurization solution. SUMMARY

[0005] The present application aims at solving the problem that the conventional waste gas passing method is relatively fixed, which can cause excessive local reaction of the desulfurization solution and reduce the utilization rate of the desulfurization solution, and provides a sulfur waste gas recovery device for soda ash production.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a sulfur waste gas recovery device for soda ash production, comprising a recovery box, a gas inlet pipe is fixedly connected to the top of the middle part of the recovery box, a gas outlet pipe is fixedly connected to the top of the part far away from the gas inlet pipe of the recovery box, a driving motor is fixedly connected to the top of the middle part of the recovery box between the gas inlet pipe and the gas outlet pipe, a connecting pipe is rotatably connected to the inside of the recovery box, an adjusting mechanism is arranged on the outside of the connecting pipe, an installation plate is fixedly connected to the outer wall of the top of the connecting pipe, a lifting mechanism is arranged at the bottom of the installation plate, and the lifting mechanism comprises a lifting ring and a self-rotation mechanism arranged on the outside of the lifting ring.

[0007] As a further scheme of the present application: the lifting mechanism comprises a driving rotating rod fixedly connected to the output end of the driving motor, and the bottom end of the driving rotating rod is fixedly connected with a driving gear, the outer wall of the driving gear is meshingly connected with a connecting gear ring, and the inner wall of the connecting gear ring is fixedly connected with the outer wall of the top of the connecting pipe, the outer wall of the connecting pipe is fixedly connected with a limiting frame, three lifting rings are arranged on the outer side of the connecting pipe, the lifting ring at the bottom is fixedly connected with the limiting frame, and the other two lifting rings are slidingly connected in the limiting frame, the bottom of the lifting ring is fixedly connected with a corrugated hose, the other side of the corrugated hose is fixedly connected with the outer side of the connecting pipe, the outer wall of the connecting pipe away from the limiting frame is fixedly connected with a mounting bottom plate, and a lifting assembly is arranged between the mounting plate and the mounting bottom plate.

[0008] As a further scheme of the present application: the lifting assembly comprises a lifting motor fixedly connected to the top of the mounting plate, and the output end of the lifting motor is fixedly connected with a first threaded rod, the bottom end of the first threaded rod is fixedly connected with a second threaded rod, and the outer walls of the first threaded rod and the second threaded rod are respectively threadedly connected with two moving threaded blocks, one side of each of the two moving threaded blocks is fixedly connected with two lifting rings, the outer wall of the lifting ring is rotatably connected with a recovery elbow pipe, and the gas outlet of the recovery elbow pipe is fixedly connected with a fixed filter plate, the lengths of the three recovery elbow pipes are arranged in a ladder shape in the longitudinal direction, and the lengths also present a ladder shape.

[0009] As a further scheme of the present application: the lengths of the three recovery elbow pipes are arranged in the longitudinal direction, and the lengths of the three recovery elbow pipes decrease from bottom to top.

[0010] As a further scheme of the present application: the adjusting mechanism comprises an adjusting rod penetrating through the lifting ring and extending into the recovery elbow pipe, and the adjusting rod is slidingly connected with the lifting ring and the recovery elbow pipe, the outer wall of one side of the adjusting rod is fixedly connected with a plug, the top of the other side of the adjusting rod is fixedly connected with two connecting rods, and the top of each of the two connecting rods is fixedly connected with an adjusting filter plate, the inner side mesh of the adjusting filter plate is initially aligned with the inner side mesh of the fixed filter plate, and a rebound spring is arranged between the inner side of the adjusting rod and the outer wall of the connecting rod.

[0011] As a further scheme of the present application: the adjusting mechanism further comprises three adjusting plates fixedly connected to the outer wall of the connecting pipe, and the other side of the adjusting plate is movably abutted with one end of the adjusting rod, and one side of the adjusting plate is composed of a ladder-shaped ramp.

[0012] As a further scheme of the present application: the self-rotation mechanism comprises a self-rotation motor fixedly connected to the lifting ring near the top of the recycling bent pipe, and the output end of the self-rotation motor is fixedly connected with a self-rotation rod, and the outer wall of one end of the self-rotation rod is fixedly connected with a self-rotation gear, and the outer wall of the self-rotation gear is engaged with the outer wall of a connecting gear fixedly connected to the outer wall of the recycling bent pipe.

[0013] As a further scheme of the present application: the self-rotation mechanism further comprises a limiting ring arranged on the outer wall of one side of the recycling bent pipe, and a limiting groove is arranged in the interior of the lifting ring, and the inner wall of the limiting groove is rotationally connected with the outer wall of the limiting ring.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. By cooperating the limiting frame, the recycling bent pipe and other parts, the driving motor is started, the driving motor is rotated to drive the driving rotating rod to rotate, the driving rotating rod is rotated to drive the driving gear to rotate, the driving gear is rotated to drive the connecting gear ring to rotate through the meshing effect, the connecting gear ring is rotated to drive the connecting pipe to rotate, the connecting pipe is rotated to drive the mounting plate and the mounting base plate to rotate, so as to drive the first threaded rod and the second threaded rod to move in a circular manner, the first threaded rod and the second threaded rod moving in a circular manner drive the lifting ring to rotate around the connecting pipe through the limiting effect of the moving threaded block and the limiting frame, the lifting ring is rotated to drive the recycling bent pipe to move in a circular manner, the recycling bent pipe moving in a circular manner constantly changes the position of the gas inlet, so that each part of the solution has the opportunity to fully contact with the waste gas, the sulfur waste gas can be evenly distributed in the solution along the circumferential direction, the gas is prevented from being concentrated in a certain area and entering, so as to avoid the situation that the local desulfurization reaction is excessive and the reaction in other areas is insufficient, and the three recycling bent pipes discharge the gas from different directions, which further refines the distribution of the gas, so that the waste gas can more evenly contact with the solution, and the desulfurization efficiency is improved.

[0016] 2. By arranging the adjusting mechanism, the lifting motor is started, the lifting motor is rotated to drive the first threaded rod and the second threaded rod to rotate, through the 2:1 pitch arranged on the first threaded rod and the second threaded rod, the moving threaded block can be moved upward in an arithmetic progression, so as to drive the lifting ring to move upward in an arithmetic progression, the lifting ring moves upward to drive the recycling bent pipe to move upward, the distance between the three recycling bent pipes can be expanded in an arithmetic progression through the upward movement of the recycling bent pipe, so that the area where the waste gas is distributed in the solution can be expanded, because the bottom pipe discharges more gas, the high-concentration waste gas first enters the bottom of the solution to fully react with the desulfurizer, as the waste gas rises, the upper pipe gradually rises, so that the waste gas can contact with the desulfurizer in a larger space, the reaction area is prevented from being too concentrated at the bottom, which is beneficial to fully utilizing the desulfurizer at different positions in the solution, and the desulfurization efficiency is improved.

[0017] 3. By setting up a lifting assembly, the vertically moving recovery bending pipe drives the adjusting rod to move vertically. The vertical movement of the adjusting rod, through the elastic action of four sequentially increasing platforms and rebound springs set on the adjusting plate, drives the adjusting filter plate to move linearly. The linear movement of the adjusting filter plate can create a misalignment with the fixed filter plate, changing the size of the filter holes of the fixed filter plate, and controlling the speed at which the exhaust gas flows out of the fixed filter plate. Since the amount of exhaust gas entering from the bottom is large and the total amount of exhaust gas rising is large, reducing the diameter of the upper pipe can make the exhaust gas rise at a relatively uniform speed in the solution. This avoids the exhaust gas from passing through the upper solution area too quickly due to the upper pipe diameter being too large, which would not have enough time to fully react with the desulfurizing agent. In this way, the exhaust gas can have a suitable residence time in the solution at different heights, so as to fully contact and react with the desulfurizing agent, further improving the desulfurization effect.

[0018] 4. The self-rotating mechanism activates the self-rotating motor, which in turn drives the self-rotating rod. This rod, in turn, drives the self-rotating gear, which in turn drives the connecting gear through meshing. The connecting gear, through the limiting groove's action on the limiting ring, drives the recovery bending tube to rotate. This rotation of the recovery bending tube helps eliminate dead zones and flow deviations in the solution. During the circular rotation, areas where gas may be difficult to reach are eliminated; the self-rotation allows gas to better enter these dead zones and adjusts the gas flow direction, reducing flow deviations and ensuring that the desulfurizing agent in the solution fully participates in the reaction, thus improving the overall utilization rate of the solution. Furthermore, the circular rotation adds disturbance in various directions, allowing gas to enter the solution from different angles, resulting in more thorough gas-liquid contact and better mixing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the lifting mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the lifting mechanism of the present invention;

[0023] Figure 5 This is a cross-sectional view of the adjustment mechanism of the present invention;

[0024] Figure 6 For the present invention Figure 5 Enlarged view of the structure at point A in the middle;

[0025] Figure 7 For the present invention Figure 5 Enlarged view of the structure at point B in the middle;

[0026] Figure 8 isometric view of the adjusting filter plate of the present application;

[0027] Figure 9 schematic view of the self-communicating mechanism of the present application;

[0028] Figure 10 isometric view of the present application Figure 9 isometric view of the structure at C in the present application.

[0029] In the figure: 1, recycling box; 2, air inlet pipe; 3, air outlet pipe; 4, driving motor; 5, driving rotating rod; 6, driving gear; 7, connecting gear ring; 8, connecting pipe; 9, limiting frame; 10, mounting plate; 11, lifting motor; 12, first threaded rod; 13, moving threaded block; 14, second threaded rod; 15, mounting bottom plate; 16, lifting ring; 17, recycling bending pipe; 18, adjusting rod; 19, blocking block; 20, connecting rod; 21, adjusting filter plate; 22, fixed filter plate; 23, rebound spring; 24, corrugated hose; 25, adjusting plate; 26, self-rotation motor; 27, self-rotation rod; 28, self-rotation gear; 29, connecting gear; 30, limiting ring; 31, limiting groove. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art in the soda ash production field without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the field of soda production, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the present application.

[0032] Please refer to Figures 1-10 The embodiment provides a sulfur waste gas recovery device for soda production, which comprises a recovery box 1, a gas inlet pipe 2 fixedly connected to the top of the middle part of the recovery box 1, a gas outlet pipe 3 fixedly connected to the top of the recovery box 1 away from the gas inlet pipe 2, a drive motor 4 fixedly connected to the top of the recovery box 1 between the gas inlet pipe 2 and the gas outlet pipe 3, a connecting pipe 8 rotatably connected inside the recovery box 1, an adjusting mechanism arranged outside the connecting pipe 8, an installation plate 10 fixedly connected to the outer wall of the top of the connecting pipe 8, a lifting mechanism arranged at the bottom of the installation plate 10, the lifting mechanism comprising a lifting ring 16, a self-rotation mechanism arranged outside the lifting ring 16, the lifting mechanism comprising a drive rotating rod 5 fixedly connected to the output end of the drive motor 4, a drive gear 6 fixedly connected to the bottom end of the drive rotating rod 5, a connecting gear ring 7 meshingly connected to the outer wall of the drive gear 6, and the inner wall of the connecting gear ring 7 is fixedly connected to the outer wall of the top of the connecting pipe 8, a limiting frame 9 fixedly connected to the outer wall of the connecting pipe 8, three lifting rings 16 arranged outside the connecting pipe 8, the bottommost lifting ring 16 is fixedly connected to the limiting frame 9, and the other two lifting rings 16 are slidingly connected inside the limiting frame 9, a corrugated hose 24 fixedly connected to the bottom of the lifting ring 16, and the other side of the corrugated hose 24 is fixedly connected to the outside of the connecting pipe 8, an installation bottom plate 15 fixedly connected to the outer wall of the connecting pipe 8 away from the limiting frame 9, and a lifting assembly arranged between the installation plate 10 and the installation bottom plate 15.

[0033] In the process of producing soda ash by ammonia soda method, a large amount of sulfur-containing waste gas is generated, which enters the inside of the recovery tank 1 through the gas inlet pipe 2, and is desulfurized by the lime slurry arranged in the inside of the recovery tank 1. The gas after desulfurization can be discharged from the device through the gas outlet pipe 3. During desulfurization, the driving motor 4 is started, the driving motor 4 rotates to drive the driving rotating rod 5 to rotate, the driving rotating rod 5 rotates to drive the driving gear 6 to rotate, the driving gear 6 rotates to drive the connecting gear ring 7 to rotate through meshing, the connecting gear ring 7 rotates to drive the connecting pipe 8 to rotate, the connecting pipe 8 rotates to drive the mounting plate 10 and the mounting bottom plate 15 to rotate, so as to drive the first threaded rod 12 and the second threaded rod 14 to move in a circle. The first threaded rod 12 and the second threaded rod 14 moving in a circle drive the lifting ring 16 to rotate around the connecting pipe 8 through the movement of the threaded block 13 and the limiting effect of the limiting frame 9. The lifting ring 16 rotates to drive the recovery bent pipe 17 to move in a circle. The recovery bent pipe 17 rotating in a circle constantly changes the position of the gas entering, so that each part of the solution has the opportunity to fully contact with the waste gas, which can make the sulfur waste gas uniformly distributed in the solution along the circumferential direction, avoid the gas concentrated in a certain area, and cause the local desulfurization reaction to be excessive, while the other areas are insufficient. At the same time, the three recovery bent pipes 17 discharge gas from different directions, which further refines the distribution of the gas, so that the waste gas can more uniformly contact with the solution, and the desulfurization efficiency is improved;

[0034] The lengths of the three recovery bent pipes 17 are arranged in a ladder shape in the longitudinal direction, and the lengths are also in a ladder shape. The ladder arrangement makes the gas enter the solution at different heights, avoiding the gas concentrated in the same horizontal plane, which can make the waste gas uniformly distributed at different depths of the solution, and then fully contact with the desulfurizing agent. At the same time, the gas can cover a larger longitudinal range of the solution, improving the utilization rate of the solution;

[0035] Please refer to Figure 4 and Figure 5 In the specific implementation process, it is found that when the concentration of the sulfur-containing waste gas entering the desulfurization solution is relatively high, the three recovery bent pipes 17 are relatively fixed in position, which can cause the high-concentration waste gas in the middle and bottom to move up to the middle and upper layers before being completely desulfurized, affecting the desulfurization effect of the middle and upper layers. In order to solve the above problems, the following technical improvements are made;

[0036] The lifting assembly comprises a lifting motor 11 fixedly connected to the top of the mounting plate 10, and the output end of the lifting motor 11 is fixedly connected with a first threaded rod 12, the bottom end of the first threaded rod 12 is fixedly connected with a second threaded rod 14, and the outer walls of the first threaded rod 12 and the second threaded rod 14 are respectively threadedly connected with two moving threaded blocks 13, one side of the two moving threaded blocks 13 is respectively fixedly connected with two lifting rings 16, the outer wall of the lifting ring 16 is rotatably connected with a recovery elbow pipe 17, and the gas outlet of the recovery elbow pipe 17 is fixedly connected with a fixed filter plate 22, the lengths of the three recovery elbow pipes 17 are arranged in a ladder shape in the longitudinal direction, and the lengths are also in a ladder shape, the lengths of the three recovery elbow pipes 17 are arranged in the longitudinal direction, and the lengths of the three recovery elbow pipes 17 decrease from bottom to top, and the first threaded rod 12 and the second threaded rod 14 are specifically in a 2:1 pitch.

[0037] The lifting motor 11 is started, the lifting motor 11 is rotated to drive the first threaded rod 12 and the second threaded rod 14 to rotate, and through the 2:1 pitch of the first threaded rod 12 and the second threaded rod 14, the moving threaded block 13 can be driven to move upward in an arithmetic sequence, thereby driving the lifting ring 16 to move upward in an arithmetic sequence, the upward movement of the lifting ring 16 drives the upward movement of the recovery elbow pipe 17, and the upward movement of the recovery elbow pipe 17 can make the distance between the three recovery elbow pipes 17 expand in an arithmetic sequence, so that the area of the waste gas distributed in the solution is expanded, because the bottom pipe has more gas outlet, the high-concentration waste gas is first in the bottom of the solution to react with the desulfurizing agent, and as the waste gas rises, the upper pipe gradually rises, so that the waste gas can contact the desulfurizing agent in a larger space, avoiding the reaction area being too concentrated at the bottom, which is beneficial to fully utilize the desulfurizing agent at different positions in the solution and improve the desulfurization efficiency;

[0038] Please refer to Figures 6-8 In the specific implementation process, it is found that the size of the gas outlet does not change during the vertical movement of the recovery elbow pipe 17 according to the sulfur concentration of the waste gas, which can cause the gas flow to be too large when the distance between the recovery elbow pipes 17 decreases, and the lower layer of the gas outlet is not fully desulfurized, so that the waste gas quickly passes through the upper solution area and does not have time to react with the desulfurizing agent, in order to solve the above problems, the following technical improvement is made;

[0039] The adjusting mechanism comprises an adjusting rod 18 penetrating through the lifting ring 16 and extending into the inside of the recycling bent pipe 17, and the adjusting rod 18 is in sliding connection with the lifting ring 16 and the recycling bent pipe 17, the outer wall of one side of the recycling bent pipe 17 is fixedly connected with a plug 19, the top of the other side of the recycling bent pipe 17 is fixedly connected with two connecting rods 20, the top of the two connecting rods 20 is fixedly connected with an adjusting filter plate 21, the inside mesh of the adjusting filter plate 21 is initially aligned with the inside mesh of a fixed filter plate 22, a rebound spring 23 is arranged between the inside of the adjusting rod 18 and the outer wall of the connecting rod 20, and the adjusting mechanism further comprises three adjusting plates 25 fixedly connected to the outer wall of the connecting pipe 8, and the other side of the adjusting plate 25 is in movable abutment with one end of the adjusting rod 18, and one side of the adjusting plate 25 is composed of a stepped ramp.

[0040] The recycling bent pipe 17 in vertical movement drives the adjusting rod 18 to move vertically, the adjusting rod 18 moves vertically to drive the adjusting filter plate 21 to move linearly through the elastic action of the rebound spring 23 and the four platforms arranged in sequence and increasing with the adjusting plate 25, the adjusting filter plate 21 moves linearly to form a misalignment with the fixed filter plate 22, change the size of the filter hole of the fixed filter plate 22, and control the speed of the exhaust gas flowing out of the fixed filter plate 22, because the amount of exhaust gas introduced from the bottom is large, the total amount of rising exhaust gas is large, and the adjusting of the hole diameter of the upper pipe can make the rising speed of the exhaust gas in the solution relatively uniform, avoid the excessive hole diameter of the upper pipe, and cause the exhaust gas to pass through the upper solution area too quickly to react with the desulfurizing agent, by this way, the exhaust gas can have a suitable residence time in the solution at different heights, so as to fully contact and react with the desulfurizing agent, and further improve the desulfurization effect;

[0041] Please refer to Figure 9 and Figure 10 , it is found in the specific implementation process that there will be dead angles and flow deviation in the solution, and there may be some areas that are not easy to reach during the circumferential rotation, which will reduce the use effect of the desulfurization solution, in order to solve the above problems, the following technical improvements are made;

[0042] The self-rotation mechanism comprises a self-rotation motor 26 fixedly connected to the top of the recycling bent pipe 17 close to the lifting ring 16, the output end of the self-rotation motor 26 is fixedly connected with a self-rotation rod 27, the outer wall of one end of the self-rotation rod 27 is fixedly connected with a self-rotation gear 28, the outer wall of the self-rotation gear 28 is fixedly connected with a connecting gear 29, and the outer wall of the connecting gear 29 is in meshing connection with the outer wall of the self-rotation gear 28, and the self-rotation mechanism further comprises a limiting ring 30 arranged on the outer wall of one side of the recycling bent pipe 17, and a limiting groove 31 is arranged in the inside of the lifting ring 16, and the inner wall of the limiting groove 31 is in rotating connection with the outer wall of the limiting ring 30.

[0043] The self-rotation motor 26 is started, the self-rotation motor 26 rotates to drive the self-rotation rod 27 to rotate, the rotating self-rotation rod 27 drives the self-rotation gear 28 to rotate, the self-rotation gear 28 rotates to drive the connecting gear 29 to rotate through the meshing effect, the connecting gear 29 rotates to drive the recovery bent pipe 17 to rotate through the limiting effect of the limiting groove 31 on the limiting ring 30, the rotating recovery bent pipe 17 helps to eliminate the dead angle and the flow deviation phenomenon in the solution, in the process of circumferential rotation, there may be some areas that are not easy for gas to reach, and the self-rotation can make the gas better enter these dead angle areas, and also can adjust the flow direction of the gas, reduce the flow deviation, so that the desulfurizer in the solution can fully participate in the reaction, improve the overall utilization rate of the solution, and on the basis of the circumferential rotation, disturbance in each direction is increased. In this way, the gas can enter the solution from different angles, so that the gas-liquid contact is more sufficient, and the mixing effect is better.

[0044] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art in the field of soda ash production can make equivalent replacement or change within the technical range disclosed by the present application according to the technical scheme and the inventive concept of the present application, which should be covered in the protection scope of the present application.

Claims

1. A sulfur off-gas recovery device for soda production, characterized by, The utility model provides a recycling box, the recycling box (1) middle top fixedly connected with air inlet pipe (2), the recycling box (1) is away from air inlet pipe (2) top fixedly connected with air outlet pipe (3), the recycling box (1) is located in air inlet pipe (2) and air outlet pipe (3) top fixedly connected with drive motor (4) in the middle, the inside rotationally connected of recycling box (1) is connected with connecting pipe (8), the outside of connecting pipe (8) is provided with adjusting mechanism, the top outer wall of connecting pipe (8) is fixedly connected with mounting plate (10), the bottom of mounting plate (10) is provided with lifting mechanism, the lifting mechanism includes the rotation of ring (16), the outside of rotation of ring (16) is provided with autorotation mechanism; The lifting mechanism includes drive rotary lever (5) fixedly connected on the output end of drive motor (4), and the bottom end of drive rotary lever (5) is fixedly connected with drive gear (6), the outer wall of drive gear (6) is engagedly connected with connecting gear ring (7), and the inner wall of connecting gear ring (7) is fixedly connected with the outer wall of the top of connecting pipe (8), the outer wall of connecting pipe (8) is fixedly connected with limiting frame (9), the outside of connecting pipe (8) is provided with three rotation of ring (16), the rotation of ring (16) at the bottom is fixedly connected with limiting frame (9), and the other two rotation of ring (16) are slidably connected in the inside of limiting frame (9), the bottom of rotation of ring (16) is fixedly connected with corrugated hose (24), and the other side of corrugated hose (24) is fixedly connected on the outside of connecting pipe (8), the outer wall of connecting pipe (8) is fixedly connected with mounting bottom plate (15) away from limiting frame (9), and lifting assembly is arranged between mounting plate (10) and mounting bottom plate (15); The lifting assembly includes lifting motor (11) fixedly connected on the top of mounting plate (10), and the output end of lifting motor (11) is fixedly connected with first threaded rod (12), the bottom end of first threaded rod (12) is fixedly connected with second threaded rod (14), and the outer wall of first threaded rod (12) and second threaded rod (14) is respectively threadedly connected with two movable threaded blocks (13), one side of two movable threaded blocks (13) is respectively fixedly connected with two rotation of ring (16), the outer wall of rotation of ring (16) is rotatably connected with recycling elbow pipe (17), and the air outlet of recycling elbow pipe (17) is fixedly connected with fixed filter plate (22), the length of three recycling elbow pipes (17) is arranged in longitudinal direction and presents ladder type, and the length also presents ladder type. The adjusting mechanism comprises an adjusting rod (18) penetrating through the lifting ring (16) and extending into the inside of the recycling bent pipe (17), and the adjusting rod (18) is in sliding connection with the lifting ring (16) and the recycling bent pipe (17), the outer wall of one side of the adjusting rod (18) is fixedly connected with a plug block (19), the top of the adjusting rod (18) close to the other side of the recycling bent pipe (17) is fixedly connected with two connecting rods (20), the top of the two connecting rods (20) is fixedly connected with an adjusting filter plate (21), the inside mesh of the adjusting filter plate (21) is initially aligned with the inside mesh of a fixed filter plate (22), and a rebound spring (23) is mounted between the inside of the adjusting rod (18) and the outer wall of the connecting rod (20). The self-rotation mechanism comprises a self-rotation motor (26) fixedly connected to the top of the recycling bent pipe (17) close to the lifting ring (16), the output end of the self-rotation motor (26) is fixedly connected with a self-rotation rod (27), the outer wall of one end of the self-rotation rod (27) is fixedly connected with a self-rotation gear (28), the outer wall of the self-rotation gear (28) is in meshing connection with the outer wall of a connecting gear (29) fixedly connected to the outer wall of the recycling bent pipe (17).

2. The sulfur off-gas recovery device for soda production according to claim 1, characterized in that, The lengths of the three recycling bent pipes (17) are longitudinally arranged, and the lengths of the three recycling bent pipes (17) decrease from bottom to top.

3. The sulfur off-gas recovery device for soda production according to claim 1, characterized in that, The adjusting mechanism further comprises three adjusting plates (25) fixedly connected to the outer wall of the connecting pipe (8), the other side of the adjusting plate (25) is in movable abutment with one end of the adjusting rod (18), and one side of the adjusting plate (25) is composed of a stepped ramp.

4. The sulfur off-gas recovery device for soda production according to claim 1, characterized in that, The self-rotation mechanism further comprises a limiting ring (30) arranged on the outer wall of one side of the recycling bent pipe (17), and the inside of the lifting ring (16) is provided with a limiting groove (31), and the inner wall of the limiting groove (31) is in rotating connection with the outer wall of the limiting ring (30).

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