Stirrer for power plant desulfurization device

Abstract

The invention relates to a stirrer for a desulfurization device in a power plant, which belongs to the technical field of desulfurization stirring and comprises a driving shaft, one end of the driving shaft is connected with a driving source, and the stirrer is characterized in that the other end of the driving shaft is provided with a stirring mechanism; the stirring mechanism comprises a mounting ring and two first stirring rods, the mounting ring sleeves the driving shaft, the mounting ring is fixedly connected with the driving shaft, the two first stirring rods are symmetrically arranged on the two sides of the mounting ring, the axis of each first stirring rod is perpendicular to and intersects with the axis of the driving shaft, one end of each first stirring rod is fixedly arranged on the mounting ring, and the other end of each first stirring rod is fixedly arranged on the driving shaft. According to the invention, through reciprocating lifting of the lifting disc in the adsorption tube, the adsorption tube sucks and discharges reaction liquid in a reciprocating manner, so that the stirring direction of the reaction liquid is increased, the stirring uniformity of the reaction liquid is improved, and solid substances in the reaction liquid can be prevented from precipitating; the reaction liquid stirring effect is improved.

Description

Technical Field

[0001] This invention relates to an agitator for a power plant desulfurization device, belonging to the field of desulfurization agitation technology. Background Technology

[0002] During the operation of thermal power plants, a large amount of coal is consumed, resulting in a significant amount of emissions. Since coal contains sulfur, its combustion produces sulfur dioxide and other byproducts, causing air pollution. Therefore, desulfurization devices are needed to treat the gases before they are released. The agitator in the desulfurization device is used to mix and stir the reaction liquid to promote the uniformity and efficiency of the desulfurization reaction.

[0003] Chinese utility model patent CN213286627U discloses an electromagnetic drive agitator for a desulfurization device, comprising a permanent magnet direct drive motor, a coupling sleeve, an agitator sleeve, and a main shaft. The coupling sleeve is detachably installed at the working end of the permanent magnet direct drive motor, and the agitator sleeve is detachably installed at the end of the coupling sleeve. The main shaft is rotatably disposed inside the agitator sleeve, with one end connected to the inside of the coupling sleeve and the other end rotatably extending outward through both sides of the end of the agitator sleeve. An agitator impeller is provided at the extended end of the main shaft. An anti-vibration mechanism and a guiding mechanism are provided at the end of the main shaft located inside the agitator sleeve. This device can prevent the main shaft of the electromagnetic drive agitator from vibrating during rotation, reducing later maintenance costs and improving service life and agitation effect. However, in the prior art, the agitator impeller structure is simple, resulting in a single agitation direction for the reaction liquid, affecting the uniformity of the reaction liquid agitation.

[0004] Therefore, a stirrer is needed for power plant desulfurization equipment to improve the uniformity of the reaction liquid. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a stirrer for a power plant desulfurization device to improve the uniformity of stirring of reaction liquid in order to overcome the shortcomings of the prior art.

[0006] The technical solution adopted by the present invention to solve the above problems is: a stirrer for a power plant desulfurization device, comprising a drive shaft, one end of which is connected to a drive source, characterized in that: a stirring mechanism is provided at the other end of the drive shaft; The stirring mechanism includes a mounting ring and two first stirring rods. The mounting ring is sleeved on the drive shaft and is fixedly connected to the drive shaft. The two first stirring rods are symmetrically arranged on both sides of the mounting ring. The axis of the first stirring rod is perpendicular to and intersects the axis of the drive shaft. One end of the first stirring rod is fixedly mounted on the mounting ring, and the other end of the first stirring rod is provided with a second stirring rod. An adsorption tube is provided below the drive shaft. The adsorption tube is coaxially arranged with the drive shaft. Both second stirring rods are fixedly connected to the adsorption tube. A lifting plate is provided inside the adsorption tube. The lifting plate is slidably and sealingly connected to the adsorption tube. A lifting assembly is provided on the lifting plate. The lifting assembly is used to realize the reciprocating lifting of the lifting plate.

[0007] Preferably, the drive source is a motor, and the output end of the motor is connected to the drive shaft via a coupling.

[0008] Preferably, the lifting assembly includes a magnet, an electromagnet, and two sliders. The two sliders are fitted one-to-one on the first stirring rod. The sliders and the lifting plate are hinged by a connecting rod. The connecting rod is arranged at an angle. The electromagnet and the magnet are distributed vertically opposite each other between the drive shaft and the adsorption tube. The electromagnet is fixedly connected to the drive shaft, and the magnet is fixedly connected to the lifting plate.

[0009] Preferably, a conduit is fixedly provided on the second stirring rod, the conduit being parallel to the first stirring rod, and a push rod is fixedly provided on the slider, the push rod being coaxially arranged with the conduit, one end of the push rod being inserted into the conduit, and the push rod being slidably and sealingly connected with the conduit.

[0010] Preferably, the end of the conduit away from the push rod is rotatably connected to a rotating tube. The rotating tube has three ports. One port of the rotating tube is sleeved on the conduit, and the other two ports of the rotating tube are discharge ends. The reverse thrust generated when the reaction liquid is discharged through the discharge end of the rotating tube drives the rotating tube to rotate around the axis of the conduit.

[0011] Preferably, the rotating tube includes a sleeve section, a rotating section, and two right-angle bends. The sleeve section is coaxially arranged with the conduit, and one end of the sleeve section is sleeved on the conduit. The middle part of the rotating section is connected to the other end of the sleeve section, and the rotating section is perpendicular to the sleeve section. The two right-angle bends are respectively located at both ends of the rotating section. The direction in which the reaction liquid is discharged from the right-angle bends is perpendicular to both the sleeve section and the rotating section, and the direction in which the reaction liquid is discharged from the two right-angle bends is opposite.

[0012] Preferably, the sleeve section, the rotating section, and the two right-angle bends are integrally formed.

[0013] Preferably, the sleeve section is provided with a through hole, a first one-way valve is installed in the through hole, and a second one-way valve is installed in both right-angle bend sections.

[0014] Preferably, a positioning ring is fixedly sleeved on the drive shaft, the top of the mounting ring fits against the bottom of the positioning ring, and a locking ring fits against the bottom of the mounting ring. The locking ring is locked to the drive shaft by a locking screw.

[0015] Preferably, the bottom of the positioning ring is provided with a groove, and the top of the mounting ring is provided with a protrusion, the protrusion matching the groove and being inserted into the groove.

[0016] Compared with the prior art, the advantages of the present invention are as follows: This invention discloses a stirrer for a power plant desulfurization device. By reciprocating the lifting plate within the adsorption tube, the adsorption tube repeatedly draws in and discharges the reaction liquid. This not only increases the stirring direction of the reaction liquid and improves its uniformity, but also prevents the precipitation of solids within the reaction liquid, thus enhancing the stirring effect. Furthermore, the reciprocating drawing in and discharge of the reaction liquid and the rotation of the rotating tube further increase the stirring direction of the reaction liquid, thereby further improving its uniformity. Attached Figure Description

[0017] Figure 1 This is a perspective view of a stirrer for a power plant desulfurization device according to the present invention; Figure 2 This is a front view of an agitator for a power plant desulfurization device according to the present invention; Figure 3 This is a left view of an agitator for a power plant desulfurization device according to the present invention; Figure 4 A schematic diagram of the connection structure of the drive shaft, mounting ring, first stirring rod, second stirring rod, adsorption tube and conduit; Figure 5 for Figure 4 Enlarged view of part A; Figure 6 This is a schematic diagram of the positioning ring structure; Figure 7 This is a schematic diagram of the mounting ring structure; Figure 8 This is a schematic diagram of the connection structure between the lifting platform and the lifting assembly; Figure 9 This is a schematic diagram of the rotating tube.

[0018] in: 1. Drive shaft; 2. Stirring mechanism; 3. Motor; 4. Coupling. Mounting ring 201, first stirring rod 202, second stirring rod 203, adsorption tube 204, lifting plate 205, lifting assembly 206, positioning ring 207, groove 208, protrusion 209, locking ring 210, locking screw 211. Magnetic block 2061, electromagnet 2062, slider 2063, connecting rod 2064, guide tube 2065, push rod 2066, rotating tube 2067; 20671 sleeve section, 20672 rotating pipe section, 20673 right-angle bend pipe section, 20674 through hole. Detailed Implementation

[0019] like Figures 1 to 9 As shown, a stirrer for a power plant desulfurization device in this embodiment includes a drive shaft 1. One end of the drive shaft 1 is connected to a drive source, and the other end of the drive shaft 1 is provided with a stirring mechanism 2. Here, the drive source is a motor 3, and the output end of the motor 3 is connected to the drive shaft 1 through a coupling 4. The stirring mechanism 2 includes a mounting ring 201 and two first stirring rods 202. The mounting ring 201 is sleeved on the drive shaft 1 and is fixedly connected to the drive shaft 1. The two first stirring rods 202 are symmetrically arranged on both sides of the mounting ring 201. The axis of the first stirring rod 202 is perpendicular to and intersects the axis of the drive shaft 1. One end of the first stirring rod 202 is fixedly mounted on the mounting ring 201, and the other end of the first stirring rod 202 is provided with a second stirring rod 203. An adsorption tube 204 is provided below the drive shaft 1. The adsorption tube 204 is coaxially arranged with the drive shaft 1. Both second stirring rods 203 are fixedly connected to the adsorption tube 204. A lifting plate 205 is provided inside the adsorption tube 204. The lifting plate 205 is slidably and sealedly connected to the adsorption tube 204. A lifting assembly 206 is provided on the lifting plate 205. The lifting assembly 206 is used to realize the reciprocating lifting of the lifting plate 205. The lifting assembly 206 includes a magnet 2061, an electromagnet 2062, and two sliders 2063. The two sliders 2063 are fitted one-to-one on the first stirring rod 202. The sliders 2063 and the lifting plate 205 are hinged by a connecting rod 2064. The connecting rod 2064 is arranged at an angle. The electromagnet 2062 and the magnet 2061 are distributed vertically opposite each other between the drive shaft 1 and the adsorption tube 204. The electromagnet 2062 is fixedly connected to the drive shaft 1, and the magnet 2061 is fixedly connected to the lifting plate 205. During operation, motor 3 starts, and its output drives drive shaft 1 to rotate synchronously via coupling 4. The rotation of drive shaft 1, through mounting ring 201, sequentially drives the first stirring rod 202 and the second stirring rod 203 to rotate, thus achieving stirring of the reaction liquid. Additionally, during the rotation of the first stirring rod 202, the slider 2063 moves away from mounting ring 201 under centrifugal force. The movement of slider 2063, through connecting rod 2064, causes lifting plate 205 to rise within adsorption tube 204. The rise of lifting plate 205 causes magnet block 2061 to rise synchronously. In effect, the electric... When the magnet 2062 is intermittently energized, the electromagnet 2062 generates a mutual repulsion force between the electromagnet 2062 and the magnet block 2061, causing the magnet block 2061 to drive the lifting plate 205 down and the slider 2063 to move in the opposite direction. When the electromagnet 2062 is de-energized, the slider 2063 moves away from the mounting ring 201 again under the action of centrifugal force, that is, the lifting plate 205 rises again. This process is repeated to realize the reciprocating lifting of the lifting plate 205 in the adsorption tube 204, and at the same time realize the reciprocating movement of the slider 2063 on the first stirring rod 202. During the ascent of the lifting plate 205, the reaction liquid is drawn in from the bottom of the adsorption tube 204. During the descent of the lifting plate 205, the reaction liquid in the adsorption tube 204 is discharged from the bottom of the adsorption tube 204. This increases the stirring direction of the reaction liquid, improves the uniformity of the stirring, and when the reaction liquid is drawn in from the bottom of the adsorption tube 204, it is easy to simultaneously draw in the solids at the bottom of the reaction liquid. This can prevent the solids in the reaction liquid from settling and improve the stirring effect of the reaction liquid. A positioning ring 207 is fixedly sleeved on the drive shaft 1. The bottom of the positioning ring 207 is provided with a groove 208. The top of the mounting ring 201 is provided with a protrusion 209. The protrusion 209 matches the groove 208 and is inserted into the groove 208. The top of the mounting ring 201 is in contact with the bottom of the positioning ring 207. A locking ring 210 is in contact with the bottom of the mounting ring 201. The locking ring 210 is locked to the drive shaft 1 by a locking screw 211. A conduit 2065 is fixedly mounted on the second stirring rod 203. The conduit 2065 is parallel to the first stirring rod 202. A push rod 2066 is fixedly mounted on the slider 2063. The push rod 2066 is coaxially arranged with the conduit 2065. One end of the push rod 2066 is inserted into the conduit 2065. The push rod 2066 and the conduit 2065 are slidably and sealed together. During the reciprocating movement of the slider 2063, the push rod 2066 is driven to reciprocate within the conduit 2065, thereby causing the conduit 2065 to circulate and draw in and discharge the reaction liquid. In this way, the stirring direction of the reaction liquid is further increased, that is, the stirring effect of the reaction liquid is further improved. The end of the conduit 2065 away from the push rod 2066 is rotatably connected to a rotating tube 2067. The rotating tube 2067 is provided with three ports. One port of the rotating tube 2067 is sleeved on the conduit 2065, and the other two ports of the rotating tube 2067 are discharge ends. When the reaction liquid is discharged through the discharge end of the rotating tube 2067, the reverse thrust generated drives the rotating tube 2067 to rotate around the axis of the conduit 2065. The rotating tube 2067 includes a sleeve section 20671, a rotating section 20672, and two right-angle bend sections 20673. The sleeve section 20671, the rotating section 20672, and the two right-angle bend sections 20673 are integrally formed. The sleeve section 20671 is coaxially arranged with the conduit 2065. One end of the sleeve section 20671 is sleeved on the conduit 2065. The middle part of the rotating section 20672 is connected to the other end of the sleeve section 20671. The rotating section 20672 is perpendicular to the sleeve section 20671. The two right-angle bend sections 20673 are respectively arranged at both ends of the rotating section 20672. The direction in which the right-angle bend sections 20673 discharge the reaction liquid is perpendicular to the sleeve section 20671 and the rotating section 20672, respectively. The directions in which the two right-angle bend sections 20673 discharge the reaction liquid are opposite. When the conduit 2065 draws in the reaction liquid, the reaction liquid first enters the rotating section 20672 from the right-angle bend section 20673. The reaction liquid in the rotating section 20672 then enters the conduit 2065 from the sleeve section 20671. When the conduit 2065 discharges the reaction liquid, it first enters the sleeve section 20671. The reaction liquid in the sleeve section 20671 then exits sequentially from the rotating section 20672 and the two right-angle bend sections 20673. When the right-angle bend section 20673 discharges the reaction liquid, it generates a reverse thrust, which causes the sleeve section 20671 to rotate around the axis of the conduit 2065, thus realizing the overall rotation of the rotating tube 2067. In this way, the stirring direction of the reaction liquid is increased again, thereby further improving the stirring effect of the reaction liquid. The sleeve section 20671 is provided with a through hole 20674, and a first check valve (not shown in the figure) is installed in the through hole 20674. Both right-angle bend sections 20673 are equipped with second check valves (not shown in the figure). When the conduit 2065 draws in the reaction liquid, the one-way characteristic of the second check valve ensures that the reaction liquid can only enter the sleeve section 20671 through the through hole 20674. When the conduit 2065 discharges the reaction liquid, the one-way characteristic of the second check valve ensures that the reaction liquid in the sleeve section 20671 cannot be discharged from the through hole 20674, but can only be discharged from the right-angle bend section 20673. In summary, by the reciprocating movement of the lifting plate 205 within the adsorption tube 204, the adsorption tube 204 reciprocates in sucking up and discharging the reaction liquid. This not only increases the stirring direction of the reaction liquid and improves the uniformity of stirring, but also prevents the precipitation of solids within the reaction liquid, thus enhancing the stirring effect. Furthermore, the reciprocating suction and discharge of the reaction liquid and the rotation of the rotating tube 2067 further increase the stirring direction of the reaction liquid, thereby further improving the uniformity of stirring.

[0020] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. A stirrer for a power plant desulfurization device, comprising a drive shaft (1), one end of which is connected to a drive source, characterized in that: A stirring mechanism (2) is provided at the other end of the drive shaft (1); The stirring mechanism (2) includes a mounting ring (201) and two first stirring rods (202). The mounting ring (201) is sleeved on the drive shaft (1) and is fixedly connected to the drive shaft (1). The two first stirring rods (202) are symmetrically arranged on both sides of the mounting ring (201). The axis of the first stirring rod (202) is perpendicular to and intersects the axis of the drive shaft (1). One end of the first stirring rod (202) is fixedly mounted on the mounting ring (201), and the other end of the first stirring rod (202) is provided with a second stirring rod. A stirring rod (203) is provided below the drive shaft (1), and an adsorption tube (204) is provided below the drive shaft (1). The adsorption tube (204) is coaxially arranged with the drive shaft (1). Two second stirring rods (203) are fixedly connected to the adsorption tube (204). A lifting plate (205) is provided inside the adsorption tube (204). The lifting plate (205) is slidably and sealedly connected to the adsorption tube (204). A lifting assembly (206) is provided on the lifting plate (205). The lifting assembly (206) is used to realize the reciprocating lifting of the lifting plate (205).

2. The agitator for a power plant desulfurization device according to claim 1, characterized in that: The driving source is a motor (3), and the output end of the motor (3) is connected to the drive shaft (1) through a coupling (4).

3. The agitator for a power plant desulfurization device according to claim 1, characterized in that: The lifting assembly (206) includes a magnet (2061), an electromagnet (2062), and two sliders (2063). The two sliders (2063) are fitted one-to-one on the first stirring rod (202). The sliders (2063) and the lifting plate (205) are hinged by a connecting rod (2064). The connecting rod (2064) is arranged at an angle. The electromagnet (2062) and the magnet (2061) are distributed vertically opposite each other between the drive shaft (1) and the adsorption tube (204). The electromagnet (2062) is fixedly connected to the drive shaft (1), and the magnet (2061) is fixedly connected to the lifting plate (205).

4. The agitator for a power plant desulfurization device according to claim 3, characterized in that: A conduit (2065) is fixedly provided on the second stirring rod (203). The conduit (2065) is parallel to the first stirring rod (202). A push rod (2066) is fixedly provided on the slider (2063). The push rod (2066) is coaxially arranged with the conduit (2065). One end of the push rod (2066) is inserted into the conduit (2065). The push rod (2066) and the conduit (2065) are slidably and sealed together.

5. The agitator for a power plant desulfurization device according to claim 4, characterized in that: The end of the conduit (2065) away from the push rod (2066) is rotatably connected to a rotating tube (2067). The rotating tube (2067) has three ports. One port of the rotating tube (2067) is sleeved on the conduit (2065), and the other two ports of the rotating tube (2067) are discharge ends. When the reaction liquid is discharged through the discharge end of the rotating tube (2067), the reverse thrust generated drives the rotating tube (2067) to rotate around the axis of the conduit (2065).

6. The agitator for a power plant desulfurization device according to claim 5, characterized in that: The rotating tube (2067) includes a sleeve section (20671), a rotating tube section (20672), and two right-angle bend sections (20673). The sleeve section (20671) is coaxially arranged with the conduit (2065). One end of the sleeve section (20671) is sleeved on the conduit (2065). The middle part of the rotating tube section (20672) is connected to the other end of the sleeve section (20671). The rotating tube section (20672) is perpendicular to the sleeve section (20671). The two right-angle bend sections (20673) are respectively arranged at both ends of the rotating tube section (20672). The direction in which the right-angle bend sections (20673) discharge the reaction liquid is perpendicular to the sleeve section (20671) and the rotating tube section (20672), respectively. The directions in which the two right-angle bend sections (20673) discharge the reaction liquid are opposite.

7. The agitator for a power plant desulfurization device according to claim 6, characterized in that: The sleeve section (20671), the rotating section (20672), and the two right-angle bend sections (20673) are integrally formed structures.

8. The agitator for a power plant desulfurization device according to claim 1, characterized in that: The sleeve section (20671) is provided with a through hole (20674), and a first check valve is installed in the through hole (20674). Both right-angle bend sections (20673) are equipped with second check valves.

9. The agitator for a power plant desulfurization device according to claim 1, characterized in that: A positioning ring (207) is fixedly sleeved on the drive shaft (1). The top of the mounting ring (201) is in contact with the bottom of the positioning ring (207). A locking ring (210) is in contact with the bottom of the mounting ring (201). The locking ring (210) is locked to the drive shaft (1) by a locking screw (211).

10. The agitator for a power plant desulfurization device according to claim 9, characterized in that: The bottom of the positioning ring (207) is provided with a groove (208), and the top of the mounting ring (201) is provided with a protrusion (209). The protrusion (209) matches the groove (208) and is inserted into the groove (208).

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