Desulfurization stirrer for thermal power plant

Abstract

The invention discloses a desulfurization stirrer for a thermal power plant, and relates to the technical field of stirrers for power plants, the desulfurization stirrer comprises a stirring box, the top end of the stirring box is provided with a fixing plate, one side of the top end of the fixing plate is rotatably provided with a double-thread screw, the two sides of the double-thread screw are both provided with clamping plates in a threaded mode, and one end of the double-thread screw is fixedly provided with a worm wheel. A driving motor is arranged in the middle of the top end of the stirring box, a fixing ring is installed at the bottom end of the driving motor, and the bottom end of the fixing ring is in sealing contact with the middle of the top end of the fixing plate; according to the stirrer disclosed by the invention, the fixing ring fixed at the lower part of the driving motor can be fixed through the relative movement between the two clamping plates, namely, the whole stirrer is fixedly mounted, so that the mounting is more convenient and quicker, the dismounting can be completed by directly and reversely rotating the double-thread screw during dismounting, and the stirrer can be cleaned and maintained.

Description

Technical Field

[0001] The invention relates to the technical field of agitators for power plants, in particular to a desulfurization agitator for thermal power plants. Background Art

[0002] The waste gas generated by thermal power plants during power generation contains a variety of acidic gases and dust produced by combustion. Direct emission will seriously pollute the atmospheric environment and have adverse effects on the ecosystem and human health. Therefore, in actual operation, the waste gas generated by thermal power plants is often treated and can only be discharged after meeting environmental protection standards.

[0003] At present, the general method of waste gas treatment is to pass the waste gas into the desulfurization treatment liquid for treatment, so that the acidic components in the waste gas react with the alkaline desulfurization liquid to generate neutral or precipitable compounds to reduce the pollution to the atmospheric environment. In order to facilitate the contact between the flue gas and the desulfurization and dust removal liquid, stirring is usually performed by setting a stirring device; however, the existing agitator installation method mainly relies on multiple bolts for fixing, which leads to a major problem of the stirring device: low installation efficiency, inconvenient disassembly, cleaning and maintenance.

[0004] In addition, the agitator will produce vibration and noise during actual use, which will affect the physical and mental health of workers, production efficiency and equipment safety. Summary of the invention

[0005] In response to the above problems, the present application provides a desulfurization agitator for a thermal power plant, which solves the problem of low installation efficiency of the agitator during the waste gas treatment process of the thermal power plant and difficulty in disassembly during cleaning and maintenance.

[0006] To achieve the purpose of this application, this application provides the following technical solutions:

[0007] A desulfurization agitator for a thermal power plant comprises a mixing box, a fixed plate is provided at the top of the mixing box, a double-headed screw is rotatably mounted on one side of the top of the fixed plate, clamping plates are threadedly mounted on both sides of the double-headed screw, a worm wheel is fixedly mounted on one end of the double-headed screw, a worm is rotatably mounted on one side of the top of the fixed plate, the worm wheel and the worm are meshingly connected, a driving motor is provided in the middle of the top of the mixing box, a fixing ring is installed at the bottom end of the driving motor, the bottom end of the fixing ring is in sealing contact with the middle of the top of the fixing plate, the top of the fixing ring is in sealing contact with the lower part of the clamping plate, and a stirring rod is installed in the middle of the bottom end of the fixing ring.

[0008] In a possible implementation, four evenly distributed first shells are fixedly installed on the top of the mixing box, four evenly distributed second springs are fixedly installed on the top of the mixing box, the outer surfaces of the four first shells are slidably sleeved with a second shell, the tops of the four second shells are fixedly installed on the bottom end of a fixed plate, the inner upper surfaces of the four second shells are fixedly installed with first springs, the bottom ends of the four first springs are fixedly installed on the top of the first shell, the inner upper surfaces of the four second shells are fixedly installed with sliding rods, the middle parts of the four sliding rods slide through the first shell, and the lower parts of the four sliding rods are slidably clamped in the middle part of the first shell.

[0009] In a possible implementation, a rubber shock-absorbing pad is fixedly mounted at the middle of the top end of the mixing box, and a middle of the bottom end of the fixing plate is fixedly mounted on the top of the rubber shock-absorbing pad.

[0010] In a possible implementation, a handle is fixedly mounted on the top end of the worm.

[0011] In a possible implementation, a limiting rod is fixedly mounted on the top end of one side of the fixing plate away from the double-headed screw, and one side of the two clamping plates are slidably clamped on the outer surface of the limiting rod.

[0012] In a possible implementation, two symmetrically distributed sliders are fixedly mounted on the outer surfaces of the four first shells, two mirror-distributed slide grooves are provided on the inner walls of the four second shells, and the multiple sliders are slidably clamped inside the slide grooves.

[0013] In a possible implementation, a sliding guide rail is provided on the stirring rod, and the sliding guide rail is fixedly mounted on the outside of the stirring rod and extends along the length direction of the stirring rod; the stirring rod is also provided with a stirring blade, and the stirring blade is mounted on a blade bracket, and the blade bracket is movably connected to the sliding guide rail; a third spring is provided on the sliding guide rail, one end of the third spring is connected to the blade bracket, and the other end is fixed to one end of the sliding guide rail close to the fixed ring, and the third spring is used to provide a floating rebound force for the blade bracket so that the stirring blade is reset after the floating ends.

[0014] In a possible implementation, the agitator also includes a control unit, a sensor device, a drive device and a friction device; the sensor device is used to monitor the operating status data of the mixing box and send it to the control unit; the sensor device includes a position sensor, and the position sensor is installed on the sliding guide rail and the blade bracket; the operating status data of the mixing box includes: the floating condition of the mixing blade; the control unit is used to receive the operating status data of the mixing box, calculate the friction force required between the sliding guide rail and the friction device, and then generate a control signal; and send the control signal to the drive device; the friction device is connected to the sliding guide rail; the drive device is used to receive the control signal, one end of the drive device is connected to the sliding guide rail, and the other end of the drive device is connected to the friction device, and is used to control the friction device to adjust the friction force according to the control signal.

[0015] In a possible implementation, limiting devices are provided at both ends of the sliding guide rail to prevent the blade bracket from sliding out of the sliding guide rail; the limiting devices are stop blocks or sliding limiting grooves.

[0016] In a possible implementation, the sensor device also includes a force sensor and a fluid sensor; the force sensor is installed between the friction device and the sliding guide rail to monitor the force condition of the sliding guide rail; the fluid sensor is fixedly connected to the inner side wall of the mixing box to monitor the characteristics of the fluid.

[0017] Beneficial effects: The desulfurization agitator for a thermal power plant provided in the present application can fix the fixing ring fixed on the lower part of the driving motor by relative movement between two clamping plates, that is, the agitator is fixedly installed as a whole, making installation more convenient and quick. When disassembling, the disassembly can be completed by directly rotating the double-headed screw in the opposite direction, so that the agitator can be cleaned and maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

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

[0020] Figure 2 It is a schematic diagram of the structure after splitting in the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0023] Figure 5 For the present invention Figure 3 The enlarged view of point B in the middle;

[0024] Figure 6 It is a schematic diagram of a partial cross-sectional structure of the present invention;

[0025] Figure 7 For the present invention Figure 2 Simplified schematic diagram of the local structure.

[0026] In the figure: 1. mixing box; 2. fixing plate; 21. rubber shock-absorbing pad; 22. double-headed screw; 23. worm gear; 24. worm; 241. handle; 25. clamping plate; 26. limit rod; 3. first shell; 31. second shell; 32. sliding rod; 33. first spring; 34. second spring; 35. slider; 36. slide groove; 4. driving motor; 41. fixing ring; 42. stirring rod; 43. blade bracket; 44. stirring blade; 5. sliding guide rail; 51. third spring; 52. limit device, 53. friction device, 54. driving device. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not 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 one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.

[0029] The inventors of the present invention have found that at present, thermal power plants usually treat exhaust gas by passing the exhaust gas into a treatment liquid. During the treatment process, in order to increase the contact efficiency between the exhaust gas and the desulfurization and dust removal liquid, a stirring device is usually used for stirring. However, the existing installation method of the agitator mainly relies on multiple bolts for fixing, which leads to low installation efficiency and inconvenience in disassembly, cleaning and maintenance. Based on this, in the embodiment of the present invention provided by the inventor, the two clamping plates are relatively moved to fix the fixing ring fixed to the lower part of the drive motor, that is, the agitator is fixedly installed as a whole, making the installation more convenient and quick, and the disassembly can be completed by directly rotating the double-headed screw in the opposite direction during disassembly, so that the agitator can be cleaned and maintained.

[0030] Combine the following Figures 1 to 7 The embodiments shown describe the technical solution of the present invention:

[0031] Reference Figure 1-Figure 7 As shown, the present invention provides a desulfurization agitator for a thermal power plant, including a mixing box 1, a fixed plate 2 is provided at the top of the mixing box 1, a double-headed screw 22 is rotatably installed on one side of the top of the fixed plate 2, clamping plates 25 are threadedly installed on both sides of the double-headed screw 22, a worm gear 23 is fixedly installed at one end of the double-headed screw 22, a worm 24 is rotatably installed on one side of the top of the fixed plate 2, the worm gear 23 is meshingly connected with the worm 24, a driving motor 4 is provided in the middle of the top of the mixing box 1, a fixing ring 41 is installed at the bottom end of the driving motor 4, the bottom end of the fixing ring 41 is in sealing contact with the middle of the top of the fixing plate 2, the top of the fixing ring 41 is in sealing contact with the lower part of the clamping plate 25, and a stirring rod 42 is installed in the middle of the bottom end of the fixing ring 41.

[0032] In the embodiment of the present application, a worm 24 and a worm wheel 23 are provided, wherein the worm wheel 23 and the worm 24 structure have a self-locking function, so that the double-headed screw 22 will not rotate by itself, causing the clamping plate 25 to loosen. At the same time, the two clamping plates are relatively moved to fix the fixing ring 41 fixed at the lower part of the driving motor 4, that is, the agitator is fixedly installed as a whole, making the installation more convenient and quick. When disassembling, the double-headed screw 22 can be directly rotated in the opposite direction to complete the disassembly, so that the agitator can be cleaned and maintained.

[0033] As a feasible implementation, the top of the mixing box 1 of the embodiment of the present application is fixedly mounted with four evenly distributed first shells 3, the top of the mixing box 1 is fixedly mounted with four evenly distributed second springs 34, the outer surfaces of the four first shells 3 are slidably sleeved with second shells 31, the tops of the four second shells 31 are fixedly mounted on the bottom end of the fixed plate 2, the inner upper surfaces of the four second shells 31 are fixedly mounted with first springs 33, the bottom ends of the four first springs 33 are fixedly mounted on the top end of the first shell 3, the inner upper surfaces of the four second shells 31 are fixedly mounted with sliding rods 32, the middle parts of the four sliding rods 32 are slidably penetrated through the first shell 3, and the lower parts of the four sliding rods 32 are slidably clamped in the middle part of the first shell 3. In a possible implementation, a rubber shock-absorbing pad 21 is fixedly mounted in the middle part of the top end of the mixing box 1, and the middle part of the bottom end of the fixed plate 2 is fixedly mounted on the top end of the rubber shock-absorbing pad 21.

[0034] In the embodiment of the present application, the vibration buffering capacity and operation stability of the stirring device are greatly improved through the design of a multi-layer spring shock-absorbing and sliding support structure, which not only protects the internal components of the equipment, but also improves the durability and stability of the equipment. It helps to ensure a better operating environment and equipment reliability in the desulfurization process. At the same time, by arranging a rubber shock-absorbing pad 21 in the agitator 1, it can effectively absorb and buffer the vibration generated when the drive motor 4 is running, thereby reducing the noise transmitted to the stirring box 1 and the surrounding environment. This design not only helps to improve the comfort of the working environment, but also reduces the wear of the equipment due to long-term vibration. At the same time, the fixed plate 2 and the stirring box 1 are directly sealed, which can prevent external dust, moisture or other impurities from entering the stirring box, thereby ensuring the cleanliness of the stirring process and the normal operation of the equipment.

[0035] In a possible implementation manner, a handle 241 is fixedly installed on the top of the worm 24 , and the handle 241 is provided, and the worm 24 is driven to rotate by rotating the handle 241 .

[0036] In a possible implementation, a limiting rod 26 is fixedly installed on the top of one side of the fixing plate 2 away from the double-headed screw 22 , and one side of the two clamping plates 25 are both slidably clamped on the outer surface of the limiting rod 26 .

[0037] In the embodiment of the present application, by setting a limit rod 26, the other sides of the two clamping plates 25 are slidably installed on the outer surface of the limit rod 26, so that when the double-headed screw 22 rotates, the limit rod 26 is used to limit the clamping plates 25, which will drive them to move relative to or away from each other.

[0038] In a possible implementation, two symmetrically distributed sliders 35 are fixedly mounted on the outer surfaces of the four first shells 3, and two mirror-distributed slide grooves 36 are provided on the inner walls of the four second shells 31. The multiple sliders 35 are slidably clamped inside the slide grooves 36.

[0039] In the embodiment of the present application, by setting a slider 35 and a slide groove 36, when the second shell 31 moves up and down on the outside of the first shell 3, the slider 35 slides inside the slide groove 36 to ensure the stability of the second shell 31 during the up and down movement and avoid vibration or displacement.

[0040] As a feasible implementation mode, a sliding guide rail 5 is provided on the stirring rod 42 of the embodiment of the present application, and the sliding guide rail 5 is fixedly installed on the outside of the stirring rod 42 and extends along the length direction of the stirring rod 42; a stirring blade 44 is also provided on the stirring rod 42, and the stirring blade 44 is installed on the blade bracket 43, and the blade bracket 43 is movably connected to the sliding guide rail 5; a third spring 51 is provided on the sliding guide rail 5, one end of the third spring 51 is connected to the blade bracket 43, and the other end is fixed to one end of the sliding guide rail 5 close to the fixed ring 41, and the third spring 51 is used to provide a floating rebound force for the blade bracket 43, so that the stirring blade 44 can be reset after the floating ends.

[0041] In the embodiment of the present application, the sliding guide 5 is installed on the outside of the stirring rod 42 and extends along the length direction of the stirring rod 42. The sliding guide 5 can be made of a metal material with high hardness to ensure wear resistance and stability in long-term use. The sliding guide 5 extends along the length direction of the stirring rod 42, and the blade bracket 43 is connected to the sliding guide 5 through a slider or a slide groove, so that the blade bracket 43 can move in the up and down direction under the guidance of the sliding guide 5. The stirring blade 44 is installed on the blade bracket 43, and the stirring blade 44 can float up and down through the blade bracket 43 through the connection between the stirring blade 44 and the blade bracket 43. The fluid sedimentation is reduced and the stirring is more uniform. In order to provide a floating rebound force to the blade bracket 43, a third spring 51 is installed on the sliding guide 5, one end of the third spring 51 is connected to the blade bracket 43, and the other end is fixed to one end of the sliding guide 5 close to the fixed ring 41. The stirring blade 44 can float during the stirring process and can automatically return to the initial position after the floating ends.

[0042] During the stretching process of the third spring 51, the stirring blade 44 floats up and down through the sliding guide rail 5 under the effect of fluid resistance on the stirring blade 44. When the blade bracket 43 floats downward, the stretching of the third spring 51 gradually increases; when the blade bracket 43 moves upward, the stretching of the third spring 51 gradually decreases until it returns to the initial state.

[0043] Rebound process of the third spring 51: After the floating process is over, when the fluid resistance decreases, the stretching of the third spring 51 is gradually released, and the third spring 51 begins to rebound, pushing the blade bracket 43 back to its original position. The rebound force helps the blade bracket 43 to re-enter its working position, ensuring that the stirring blade 44 continues to work effectively.

[0044] By adopting the above technical solution, through the cooperation of the sliding guide rail 5 and the third spring 51, the stirring blade 44 can float up and down, thereby reducing the sedimentation of the fluid during the stirring process, thereby making the stirring more uniform.

[0045] In a possible embodiment, the agitator also includes a control unit, a sensor device, a drive device 54 and a friction device 53; the sensor device is used to monitor the operating status data of the mixing box 1 and send it to the control unit; the sensor device includes a position sensor, and the position sensor is installed on the sliding guide rail 5 and the blade bracket 43; the operating status data of the mixing box 1 includes: the floating condition of the mixing blade 44; the control unit is used to receive the operating status data of the mixing box 1, calculate the friction force required between the sliding guide rail 5 and the friction device 53, and then generate a control signal; and send the control signal to the drive device 54; the friction device 53 is connected to the sliding guide rail 5; the drive device 54 is used to receive the control signal, one end of the drive device 54 is connected to the sliding guide rail 5, and the other end of the drive device 54 is connected to the friction device 53, and is used to control the friction device 53 to adjust the friction force according to the control signal.

[0046] In the embodiment of the present application, it is considered that the third spring 51 may not be sufficient to support the stretching and rebounding of the third spring 51 only by relying on fluid resistance. In order to make the stretching and rebounding of the third spring 51 more controllable, a control unit, a position sensor device, a drive device 54, and a friction device 53 are added. By installing a position sensor on the sliding guide rail 5 and the blade bracket 43, it is used to monitor the floating condition of the stirring blade 44 and send it to the control unit. The control unit performs real-time calculations based on the data collected by the position sensor. For example, if the blade sinks, the calculation result is to increase the friction force to prevent the blade from sinking quickly; if the blade floats, the calculation result is to reduce the friction force to avoid excessive resistance during the rebound process. After the analysis and calculation are completed, the control unit generates a control signal based on the analysis result and sends it to the drive device 54, instructing the drive device 54 to adjust the contact pressure of the friction device 53, increase or reduce the friction force, thereby controlling the stretching and rebound degree of the third spring 51. The drive device 54 can be, for example, an electric actuator or a pneumatic actuator. In a possible embodiment, the sensor device, the drive device 54, and the friction device 53 can be made of corrosion-resistant materials.

[0047] Through the above technical solution, by using the control unit and the drive device 54 to control the friction device 53 to adjust the friction force, combined with the real-time feedback of the sensor data, the intelligent adjustment of the friction force can be achieved. The control unit can automatically adjust the friction force according to factors such as the floating condition of the blade to ensure the balance of the stretching and rebound processes without manual intervention. The use of electric actuators or pneumatic actuators can accurately control the compression force of the friction device 53 to ensure real-time adjustment of the friction force.

[0048] In a possible implementation manner, limiting devices 52 are provided at both ends of the sliding guide rail 5 to prevent the blade bracket 43 from sliding out of the sliding guide rail 5; the limiting devices 52 are stop blocks or sliding limiting grooves.

[0049] By adopting the above technical solution, the floating range of the blade bracket 43 can be effectively limited to prevent it from sliding out of the guide rail, thereby improving the stability and safety of the equipment.

[0050] In a possible embodiment, the sensor device also includes a force sensor and a fluid sensor; the force sensor is installed between the friction device 53 and the sliding guide rail 5 to monitor the force condition of the sliding guide rail 5; the fluid sensor is fixedly connected to the inner side wall of the mixing box 1 to monitor the characteristics of the fluid.

[0051] In the embodiment of the present application, a force sensor and a fluid sensor are also included. The force sensor is used to obtain the contact pressure between the friction element and the sliding guide rail 5 to determine whether the current friction force meets the requirements. If the pressure does not meet the requirements, is too large or too small, it will be fed back to the control unit, and the control unit will resend the control signal to the drive device 54, and the drive device 54 controls the friction device 53 to adjust the friction force. The fluid sensor is used to monitor the flow state of the fluid, determine whether the viscosity of the fluid changes, whether the flow rate is too fast, etc. The control unit calculates the resistance of the fluid to the stirring blade 44 based on the viscosity, flow rate and other characteristics of the fluid, and then sends a control signal to the drive device 54 to control the friction device 53 to adjust the friction force.

[0052] By adopting the above technical solution and setting a force sensor and a fluid sensor, the friction force can be controlled more accurately to ensure that the stirring blade 44 can float smoothly under the action of the fluid resistance and avoid excessive resistance when rebounding.

[0053] Working principle: The working principle of the agitator in this application can be divided into three steps: fixed installation, vibration buffering, and stirring movement. The following is a detailed introduction to each step:

[0054] Fixed installation: Place the fixing ring 41 at the middle of the top of the fixing plate 2, so that the driving motor 4 is connected to the mixing box 1 through the fixing ring 41. By turning the handle 241, the rotation drives the worm 24 to rotate. The worm 24 is meshed and connected with the worm wheel 23. When the worm 24 rotates, the worm wheel 23 is driven to rotate. The worm wheel 23 is fixedly installed at one end of the double-headed screw 22, and the rotation of the worm wheel 23 drives the double-headed screw 22 to rotate. As the double-headed screw 22 rotates, the two clamping plates 25 threadedly connected to the double-headed screw 22 move relative to each other along the thread. Through the thread action of the double-headed screw 22, the lower part of the clamping plate 25 is in sealing contact with the top of the fixing ring 41, and the fixing ring 41 is firmly fixed on the fixing plate 2, thereby stabilizing the position of the driving motor 4. In addition, a limit rod 26 is installed on the side of the fixing plate 2 away from the double-headed screw 22, and the movement of the clamping plate 25 is guided by the limit rod 26, so that it remains stable during the installation and disassembly process, avoids deviation, and helps to reduce noise and unnecessary vibration. This design is easier to install and remove. The clamping plate 25 can be loosened by simply rotating the handle 241 in the opposite direction, thereby achieving quick maintenance and cleaning.

[0055] Vibration buffering: During the use of the agitator, the drive motor 4 will generate vibration when it is running, and the vibration will be transmitted to the mixing box 1 through the fixing ring 41 and the fixing plate 2. The rubber shock-absorbing pad 21 installed on the top of the mixing box 1 can effectively absorb and buffer the vibration, reduce the transmission of vibration to the mixing box 1 and the surrounding environment, and reduce the noise of the equipment. The vibration generated when the drive motor 4 is running is transmitted to the multi-layer spring system along the fixing plate 2. The second shell 31 slides on the outer surface of the first shell 3 under vibration, compressing the first spring 33 located between the first shell 3 and the second shell 31. The sliding rod 32 moves downward in the first shell, further compressing the second spring 34. Under the interaction between the first spring 33 and the second spring 34, the fixing plate 2 is buffered, the vibration is buffered and dispersed step by step, and the vibration energy is gradually weakened, thereby greatly reducing the amount of vibration transmitted to the mixing box 1. In addition, a slider 35 is installed on the outer surface of the first shell 3, and a slide groove 36 is provided on the inner wall of the second shell 31. When the second housing 31 moves up and down outside the first housing 3, the slider 35 slides in the slide groove 36 to ensure the stability of the second housing 31 during the up and down movement and avoid vibration or deviation. The multi-layer shock-absorbing structure in this design ensures that the agitator can operate stably at different vibration frequencies and effectively protects the drive motor 4 and other parts of the agitator.

[0056] Stirring process: When the agitator is started, the sensor device monitors the operating status data of the stirring box in real time. If the viscosity of the fluid is high, resulting in increased fluid resistance, the control unit sends a signal to the drive device 54, and the drive device 54 controls the friction device 53 to increase friction to help the third spring 51 stretch better; conversely, when the viscosity of the fluid is low, the system will reduce friction to reduce resistance during rebound. The control unit sends a signal to the drive device 54 according to the floating speed of the blade, the force of the sliding guide rail 5 and the state of the fluid, and the drive device 54 controls the friction device 53 to adjust the magnitude of the friction. The control unit can increase friction when the stirring blade 44 sinks to ensure that the third spring 51 stretches, and reduce friction during rebound to ensure that the stirring blade 44 can recover smoothly. Thereby, the fluid does not settle and the stirring is more uniform.

[0057] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and methods can be implemented in other ways. For example, the module embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, modules or units, which can be electrical, mechanical or other forms.

[0058] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.

Claims

1. A desulfurization agitator for a thermal power plant, comprising a stirring box, characterized in that: The top of the mixing box (1) is provided with a fixed plate (2), one side of the top of the fixed plate (2) is rotatably mounted with a double-headed screw (22), both sides of the double-headed screw (22) are threadedly mounted with clamping plates (25), one end of the double-headed screw (22) is fixedly mounted with a worm wheel (23), one side of the top of the fixed plate (2) is rotatably mounted with a worm wheel (24), the worm wheel (23) is meshingly connected with the worm wheel (24), the middle part of the top of the mixing box (1) is provided with a driving motor (4), the bottom end of the driving motor (4) is mounted with a fixing ring (41), the bottom end of the fixing ring (41) is in sealing contact with the middle part of the top of the fixing plate (2), the top end of the fixing ring (41) is in sealing contact with the lower part of the clamping plate (25), and the middle part of the bottom end of the fixing ring (41) is mounted with a stirring rod (42).

2. A desulfurization agitator for a thermal power plant as claimed in claim 1, characterized in that: Four evenly distributed first shells (3) are fixedly mounted on the top of the mixing box (1), and four evenly distributed second springs (34) are fixedly mounted on the top of the mixing box (1). The outer surfaces of the four first shells (3) are slidably sleeved with second shells (31). The tops of the four second shells (31) are fixedly mounted on the bottom of the fixed plate (2). The inner upper surfaces of the four second shells (31) are fixedly mounted with first springs (33). The bottom ends of the four first springs (33) are fixedly mounted on the top of the first shell (3). The inner upper surfaces of the four second shells (31) are fixedly mounted with sliding rods (32). The middle parts of the four sliding rods (32) slide through the first shell (3), and the lower parts of the four sliding rods (32) slide and are clamped in the middle of the first shell (3).

3. A desulfurization agitator for a thermal power plant as claimed in claim 1, characterized in that: A rubber shock-absorbing pad (21) is fixedly mounted in the middle of the top end of the mixing box (1), and a middle of the bottom end of the fixing plate (2) is fixedly mounted on the top end of the rubber shock-absorbing pad (21).

4. A desulfurization agitator for a thermal power plant as claimed in claim 1, characterized in that: A handle (241) is fixedly mounted on the top end of the worm (24).

5. A desulfurization agitator for a thermal power plant as claimed in claim 1, characterized in that: A limiting rod (26) is fixedly mounted on the top end of one side of the fixing plate (2) away from the double-headed screw (22), and one side of the two clamping plates (25) is slidably clamped on the outer surface of the limiting rod (26).

6. A desulfurization agitator for a thermal power plant as claimed in claim 2, characterized in that: Two symmetrically distributed sliding blocks (35) are fixedly mounted on the outer surfaces of the four first shells (3), and two mirror-distributed sliding grooves (36) are provided on the inner walls of the four second shells (31), and the plurality of sliding blocks (35) are slidably mounted inside the sliding grooves (36).

7. A desulfurization agitator for a thermal power plant as claimed in claim 1, characterized in that: The stirring rod (42) is provided with a sliding guide rail (5), the sliding guide rail (5) is fixedly mounted on the outside of the stirring rod (42) and extends along the length direction of the stirring rod (42); the stirring rod (42) is also provided with a stirring blade (44), the stirring blade (44) is mounted on a blade bracket (43), and the blade bracket (43) is movably connected to the sliding guide rail (5); A third spring (51) is provided on the sliding guide rail (5), one end of the third spring (51) is connected to the blade bracket (43), and the other end is fixed to one end of the sliding guide rail (5) close to the fixing ring (41). The third spring (51) is used to provide a floating rebound force for the blade bracket (43) so that the stirring blade (44) is reset after the floating ends.

8. A desulfurization agitator for a thermal power plant as claimed in claim 7, characterized in that: The stirrer also includes a control unit, a sensor device, a drive device (54) and a friction device (53); The sensor device is used to monitor the operating status data of the mixing box (1) and send it to the control unit; the sensor device comprises a position sensor, and the position sensor is installed on the sliding guide rail (5) and the blade bracket (43); The operating status data of the mixing box (1) include: the floating status of the mixing blade (44); The control unit is used to receive the operating status data of the mixing box (1), calculate the friction force required by the sliding guide rail (5) and the friction device (53), and then generate a control signal; and send the control signal to the driving device (54); The friction device (53) is connected to the sliding guide rail (5); the driving device (54) is used to receive a control signal, one end of the driving device (54) is connected to the sliding guide rail (5), and the other end of the driving device (54) is connected to the friction device (53), and is used to control the friction device (53) to adjust the friction force according to the control signal.

9. A desulfurization agitator for a thermal power plant as claimed in claim 7, characterized in that: Limiting devices (52) are provided at both ends of the sliding guide rail (5) for preventing the blade bracket (43) from sliding out of the sliding guide rail (5); the limiting devices (52) are stop blocks or sliding limiting grooves.

10. A desulfurization agitator for a thermal power plant as claimed in claim 8, characterized in that: The sensor device also includes a force sensor and a fluid sensor; The force sensor is installed between the friction device (53) and the sliding guide rail (5) and is used to monitor the force condition of the sliding guide rail (5); The fluid sensor is fixedly connected to the inner side wall of the stirring box (1) and is used to monitor the characteristics of the fluid.

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