Automatic chemical feeding device for power plant boiler feed water

Abstract

The invention discloses a power plant boiler feed water automatic dosing device, and relates to the field of dosing devices.The power plant boiler feed water automatic dosing device comprises a stirring barrel, a feeding hopper is arranged on the top face of the stirring barrel, and a PLC is arranged on the outer circle wall face of the stirring barrel; through mutual cooperative use of a stirring barrel, a cover plate, a preliminary mixing bin, a first fixing hole, a first connecting pipe, a rotating mixing barrel and a bearing, the effect of dissolving medicine powder can be achieved, caked medicine powder can fall off through a feeding hopper with the side wall almost perpendicular to the side wall, medicine blocks are crushed into small blocks through rotation of a micro auger, and the medicine powder is more uniform. The medicine powder is continuously turned over in the rotary mixing barrel, the caking condition is further eliminated, meanwhile, water is added into the medicine powder, the medicine powder is turned over to make full contact with the water, heating is matched, the dissolving speed is higher, the dissolving effect is better, then the medicine powder is added into the water in the stirring barrel, and the situation that precipitation occurs due to the fact that the medicine powder is not dissolved in time is avoided; and meanwhile, the dissolving effect is ensured, and the device is relatively practical.

Description

Technical Field

[0001] The invention relates to the technical field of dosing devices, in particular to an automatic dosing device for boiler water supply in a power plant. Background Art

[0002] During the operation of industrial boilers, in order to ensure the safe operation of the boiler, the water quality of the boiler feed water needs to be controlled. In order to make the water quality of the boiler feed water meet the water quality requirements of relevant standards and regulations, it is necessary to add chemicals to the boiler feed water to prevent scaling and corrosion inside the boiler.

[0003] For example, the Chinese patent with publication number CN117722668A proposes a steam boiler dosing device and dosing method. In this patent, the medicine is stored in a medicine barrel, and the falling of the medicine is controlled by an electromagnetic valve. However, during the long-term storage of the medicine in the medicine barrel, the medicine may clump due to various reasons, making it difficult to fall from the inside of the medicine barrel. At the same time, after the medicine falls into the dosing box, the clumped medicine will sink to the bottom and be difficult to stir, thereby slowing down the dissolution rate and taking a long time to prepare the medicine solution. Therefore, it is necessary to propose an automatic dosing device for boiler water supply in a power plant to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide an automatic dosing device for boiler water supply in a power plant to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic dosing device for boiler water supply in a power plant, comprising: a stirring barrel, a feed hopper is arranged on the top surface of the stirring barrel, a PLC controller and a water pump are arranged on the outer circular wall surface of the stirring barrel, and also comprises a dissolving component for dissolving powder, the dissolving component is arranged inside the stirring barrel, and the dissolving component comprises: a cover plate, which is fixedly mounted on the top surface of the stirring barrel.

[0006] As a further scheme of the present invention, the dissolving component also includes a preliminary mixing bin fixedly mounted on the bottom surface of the cover plate, the inner circular wall surface of the feed hopper discharge pipe is fixedly sleeved with a first connecting pipe, the top surface of the cover plate is provided with a first fixing hole, the inner circular wall surface of the first fixing hole is fixedly sleeved with the first connecting pipe, a rotating mixing barrel is arranged inside the preliminary mixing bin, a first circular through hole is provided on one side of the preliminary mixing bin, a bearing is fixedly sleeved on the inner circular wall surface of the first circular through hole, a first gear is fixedly sleeved on the outer circular wall surface of the bearing, a second circular through hole is provided on the top surface of the cover plate, a stirring frame is movably sleeved on the inner circular wall surface of the second circular through hole, a face gear is fixedly sleeved on the outer circular wall surface of the stirring frame, and the face gear is connected to the first A gear is meshed, the first connecting pipe is movably connected with the rotating mixing drum, a plurality of flap plates are fixedly installed inside the rotating mixing drum, a plurality of second fixed holes are provided on the outer circular wall of the rotating mixing drum, a third circular through hole is provided on one side of the preliminary mixing bin, an electric heating rod is fixedly connected to the inner circular wall of the third circular through hole, a fourth circular through hole is provided on one side of the preliminary mixing bin, an electromagnetic valve is fixedly connected to the inner circular wall of the fourth circular through hole, the electromagnetic valve is electrically connected to the PLC controller, a supporting hole is provided on the top surface of the cover plate, a second connecting pipe is fixedly connected to the inner circular wall of the supporting hole, a flow valve is fixedly connected to the outer circular wall of the second connecting pipe, and a fixed pipe is fixedly connected to the inner circular wall of the flow valve.

[0007] As a further solution of the present invention, a third fixing hole is opened on one side of the feed hopper, and a micro-auger is movably sleeved on the inner circular wall of the third fixing hole. A first driving mechanism is fixedly installed on one side of the feed hopper, and a driving motor of the first driving mechanism is electrically connected to the PLC controller, and one end of a driving shaft of the first driving mechanism is fixedly installed on the micro-auger.

[0008] As a further solution of the present invention, a second driving mechanism is fixedly mounted on the top surface of the cover plate, a bottom surface of a driving shaft of the second driving mechanism is fixedly mounted on the stirring frame, and a driving motor of the second driving mechanism is electrically connected to the PLC controller.

[0009] As a further solution of the present invention, connecting holes are respectively provided on the bottom surface of the mixing barrel and the outer circular wall surface of the mixing barrel, and a third connecting pipe is fixedly connected to the inner circular wall surface of the connecting hole at the bottom, and the third connecting pipe is fixedly connected to the water inlet of the water pump, and a water inlet pipe is fixedly connected to the inner circular wall surface of the connecting hole at the top.

[0010] As a further solution of the present invention, a rectangular through hole is opened on one side of the feed hopper, and a glass is fixedly sleeved inside the rectangular through hole.

[0011] As a further solution of the present invention, a support frame is fixedly installed on the top surface of the cover plate, and the support frame is fixedly sleeved with the fixed pipe. A plurality of first support plates are fixedly installed on the top surface of the cover plate, and the first support plates are fixedly installed with the feed hopper.

[0012] As a further solution of the present invention, a limiting ring is fixedly installed on the inner bottom surface of the mixing barrel, and the limiting ring is movably connected to the mixing frame.

[0013] As a further solution of the present invention, a second support plate is fixedly mounted on the outer circumferential wall surface of the mixing barrel, and the second support plate is fixedly mounted to the PLC controller.

[0014] As a further solution of the present invention, a bin vibrator is fixedly installed on one side of the feed hopper, and the bin vibrator is electrically connected to the PLC controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The medicine powder can be dissolved by cooperating with each other through the provided stirring barrel, the feeding hopper, the cover plate, the preliminary mixing bin, the first fixing hole, the first connecting pipe, the rotating mixing cylinder and the bearing. The agglomerated medicine powder can fall through the nearly vertical feeding hopper on the side wall, and the medicine blocks are crushed into small pieces through the rotation of the micro-auger. The medicine powder is constantly turned over inside the rotating mixing cylinder to further eliminate the agglomeration. At the same time, water is added to the medicine powder and the medicine powder is turned over to make it fully contact with the water. The heating is combined to make the dissolution speed faster and the dissolution effect better. Then the medicine powder is added to the water inside the stirring barrel to avoid the situation of precipitation due to failure to dissolve in time, which greatly shortens the preparation time of the medicine solution and ensures the dissolution effect. It is more practical.

[0017] In addition, by setting up the first driving mechanism, starting the first driving mechanism to drive the micro-auger to rotate can control the downward flow of the powder inside the feed hopper, so as to control the amount of powder added, and by setting up the bin vibrator, starting the bin vibrator to vibrate one side of the feed hopper to prevent blockage inside the feed hopper, and then, the amount of powder inside the feed hopper can be observed through the glass, so that the powder can be added in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the feed hopper of the present invention;

[0020] Figure 3 It is a schematic diagram of the cover plate structure of the present invention;

[0021] Figure 4 For the present invention Figure 2Schematic diagram of the local structure of A;

[0022] Figure 5 For the present invention Figure 3 Schematic diagram of the local structure of B;

[0023] Figure 6 It is a schematic diagram of the structure of the warehouse vibrator of the present invention;

[0024] Figure 7 It is a schematic diagram of the second fixing hole structure of the present invention.

[0025] In the figure: 1. mixing barrel; 2. feed hopper; 3. cover plate; 4. preliminary mixing bin; 5. first fixing hole; 6. first connecting pipe; 7. rotating mixing barrel; 8. bearing; 9. first gear; 10. stirring frame; 11. face gear; 12. flip plate; 13. second fixing hole; 14. electric heating rod; 15. solenoid valve; 16. second connecting pipe; 17. flow valve; 18. fixed pipe; 19. first driving mechanism; 20. micro auger; 21. second driving mechanism; 22. water pump; 23. third connecting pipe; 24. water inlet pipe; 25. glass; 26. support frame; 27. first supporting plate; 28. limit ring; 29. ​​second supporting plate; 30. bin vibrator; 31. supporting hole; 32. third fixing hole; 33. connecting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figure 1-Figure 7As shown, the present invention provides a technical solution: an automatic dosing device for boiler water supply in a power plant, comprising a stirring barrel 1, a feeding hopper 2 is arranged on the top surface of the stirring barrel 1, a PLC controller and a water pump 22 are arranged on the outer circumferential wall surface of the stirring barrel 1, and a dissolving component for dissolving the powder is arranged inside the stirring barrel 1, and the dissolving component comprises: a cover plate 3, the cover plate 3 is fixedly mounted on the top surface of the stirring barrel 1, the dissolving component also comprises a preliminary mixing bin 4 fixedly mounted on the bottom surface of the cover plate 3, a first connecting pipe 6 is fixedly sleeved on the inner circumferential wall surface of the discharge pipe of the feeding hopper 2, a first fixing hole 5 is opened on the top surface of the cover plate 3, the inner circumferential wall surface of the first fixing hole 5 is fixedly sleeved with the first connecting pipe 6, a rotating mixing barrel 7 is arranged inside the preliminary mixing bin 4, a first circular through hole is opened on one side of the preliminary mixing bin 4, a bearing 8 is fixedly sleeved on the inner circumferential wall surface of the first circular through hole, a first gear 9 is fixedly sleeved on the outer circumferential wall surface of the bearing 8, and a first circular through hole is opened on the top surface of the cover plate 3. A second circular through hole, the inner circular wall of the second circular through hole is movably sleeved with a stirring frame 10, the outer circular wall of the stirring frame 10 is fixedly sleeved with a face gear 11, the face gear 11 is meshed with the first gear 9, the first connecting pipe 6 is movably sleeved with the rotating mixing barrel 7, a plurality of flip plates 12 are fixedly installed inside the rotating mixing barrel 7, a plurality of second fixed holes 13 are provided on the outer circular wall of the rotating mixing barrel 7, a third circular through hole is provided on one side of the preliminary mixing bin 4, an electric heating rod 14 is fixedly sleeved on the inner circular wall of the third circular through hole, a fourth circular through hole is provided on one side of the preliminary mixing bin 4, a solenoid valve 15 is fixedly sleeved on the inner circular wall of the fourth circular through hole, the solenoid valve 15 is electrically connected to the PLC controller, a supporting hole 31 is provided on the top surface of the cover plate 3, the inner circular wall of the supporting hole 31 is fixedly sleeved with a second connecting pipe 16, the outer circular wall of the second connecting pipe 16 is fixedly sleeved with a flow valve 17, and the inner circular wall of the flow valve 17 is fixedly sleeved with a fixed pipe 18.

[0028] It should be noted that when the user needs to make medicine, at this time, the user adds the powder into the feed hopper 2, connects the fixed pipe 18 with the water inlet pipe, thereby injecting water into the mixing barrel 1 through the water inlet pipe 24, and starts the first driving mechanism 19 to drive the micro-auger 20 to rotate so that the powder in the feed hopper 2 is pushed to flow to the left and downward into the first connecting pipe 6. In addition, the slope of the internal inclined surface of the feed hopper 2 is large, so that the powder has sufficient falling force. At the same time, when the powder is agglomerated, the micro-auger 20 can grind the powder, so that the powder enters the rotating mixing drum 7. Then, the driving motor of the second driving mechanism 21 drives the stirring frame 10 to drive the face gear 11 to rotate, so that the first gear 9 rotates and drives the rotating mixing drum 7 to rotate under the support of the bearing 8, thereby the powder is rotated by the provided flip plate 12. The powder is turned over so that it breaks under the action of gravity, and the water inlet pipe of the fixed pipe 18 is started to flow water downward to the outer wall of the rotating mixing drum 7 through the flow valve 17 and the second connecting pipe 16, so that the water flows into the interior of the preliminary mixing bin 4 and enters the interior of the rotating mixing drum 7 through the second fixed hole 13, so that the water flow and the powder are tumbled and stirred, so that the powder and water are quickly and fully mixed. At the same time, the electric heating rod 14 is started to heat the water inside the preliminary mixing bin 4 to make the powder dissolve faster, and then, the water volume is metered through the flow valve 17. After reaching a certain amount of water, the water supply to the fixed pipe 18 is stopped, so that the powder is continuously stirred and can be fully mixed, and then, the solenoid valve 15 is started to make the medicine inside the preliminary mixing bin 4 flow into the water inside the mixing barrel 1, and is stirred and mixed through the set stirring frame 10, so that the medicine is mixed with the water entering the boiler.

[0029] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a third fixing hole 32 is opened on one side of the feed hopper 2, and a micro-auger 20 is movably sleeved on the inner wall of the third fixing hole 32. A first driving mechanism 19 is fixedly installed on one side of the feed hopper 2. The first driving mechanism 19 includes a driving motor and a first mounting plate for fixing the driving motor. The driving motor of the first driving mechanism 19 is electrically connected to the PLC controller, and one end of the driving shaft of the first driving mechanism 19 is fixedly installed with the micro-auger 20. A second driving mechanism 21 is fixedly installed on the top surface of the cover plate 3. The second driving mechanism 21 , including a driving motor and a second mounting plate for fixing the driving motor, the bottom surface of the driving shaft of the second driving mechanism 21 is fixedly installed with the stirring frame 10, the driving motor of the second driving mechanism 21 is electrically connected with the PLC controller, the bottom surface of the stirring barrel 1 and the outer circular wall surface of the stirring barrel 1 are respectively provided with connecting holes 33, the inner circular wall surface of the connecting hole 33 at the bottom is fixedly sleeved with a third connecting pipe 23, the third connecting pipe 23 is fixedly sleeved with the water inlet of the water pump 22, and the inner circular wall surface of the connecting hole 33 at the top is fixedly sleeved with a water inlet pipe 24.

[0030] It should be noted that, by setting up the first driving mechanism 19, starting the first driving mechanism 19 to drive the micro-auger 20 to rotate can control the downward flow of the powder inside the feed hopper 2, so as to control the amount of powder added, and by setting up the bin vibrator 30, starting the bin vibrator 30 to vibrate one side of the feed hopper 2 to prevent blockage inside the feed hopper 2, and then, the amount of powder inside the feed hopper 2 can be observed through the glass 25, and the powder can be added in time.

[0031] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 As shown, a rectangular through hole is opened on one side of the feed hopper 2, and a glass 25 is fixedly sleeved inside the rectangular through hole, a support frame 26 is fixedly installed on the top surface of the cover plate 3, and the support frame 26 is fixedly sleeved with the fixed tube 18, a plurality of first support plates 27 are fixedly installed on the top surface of the cover plate 3, and the first support plates 27 are fixedly installed with the feed hopper 2, a limit ring 28 is fixedly installed on the inner bottom surface of the mixing barrel 1, and the limit ring 28 is movably sleeved with the mixing frame 10, a second support plate 29 is fixedly installed on the outer circular wall surface of the mixing barrel 1, and the second support plate 29 is fixedly installed with the PLC controller, and a bin vibrator 30 is fixedly installed on one side of the feed hopper 2, and the bin vibrator 30 is electrically connected with the PLC controller.

[0032] It should be noted that, through the setting of the limiting ring 28 , when the stirring frame 10 is rotating, the setting of the stirring frame 10 supports the limiting ring 28 to prevent the stirring frame 10 from tilting.

[0033] It should be noted that when the present invention is in use, through the provided stirring barrel 1, when the user needs to add medicine to the boiler water supply pipe, then, at this time, the boiler water inlet pipe is connected to the water pump 22 through the provided water pump 22, the water inlet pipe 24 is connected to the water inlet pipe, and the powder is added to the inside of the feed hopper 2, and the fixed pipe 18 is connected to the water inlet pipe, so that water is injected into the stirring barrel 1 through the water inlet pipe 24, and the first driving mechanism 19 is started to drive the micro-auger 20 to rotate so that the powder in the feed hopper 2 is pushed to flow to the left and downward into the inside of the first connecting pipe 6, and the slope of the internal slope of the feed hopper 2 is large, so that the powder The falling force is sufficient. At the same time, when the medicine powder is agglomerated, the medicine powder can be crushed by the micro-auger 20, so that the medicine powder enters the interior of the rotating mixing drum 7, and then, the driving motor of the second driving mechanism 21 drives the stirring frame 10 to drive the face gear 11 to rotate so that the first gear 9 rotates and drives the rotating mixing drum 7 to rotate under the support of the bearing 8, so that the medicine powder is flipped by the set flip plate 12, so that the medicine powder is broken under the action of gravity, and the water inlet pipe of the fixed pipe 18 is started to flow water downward to the outer wall of the rotating mixing drum 7 through the flow valve 17 and the second connecting pipe 16, so that the water flow enters the interior of the preliminary mixing bin 4 and passes through The second fixed hole 13 enters the interior of the rotating mixing barrel 7, so that the water flow and the powder are tumbled and stirred, so that the powder and water are quickly and fully mixed. At the same time, the electric heating rod 14 is started to heat the water inside the preliminary mixing chamber 4, so that the powder dissolves faster. Then, the water volume is measured through the flow valve 17. After reaching a certain water volume, the water supply to the fixed pipe 18 is stopped, so that the powder is continuously stirred and fully mixed. Then, the electromagnetic valve 15 is started to make the medicine inside the preliminary mixing chamber 4 flow into the water inside the mixing barrel 1, and is stirred through the set stirring frame 10. After the medicine is mixed with the water entering the boiler, the water pump 22 is started to stir the mixing barrel 1 through the third connecting pipe 23. The disinfectant in the mixing barrel 1 is sucked and pumped into the boiler pipe for disinfection, thereby achieving the comprehensive effect of dissolving the powder. The agglomerated powder can fall through the nearly vertical feed hopper 2 on the side wall, and the powder is crushed into small pieces by the rotation of the micro-auger 20. The powder is constantly turned inside the rotating mixing barrel 7 to further eliminate the agglomeration. At the same time, water is added to the powder and the powder is tumbled to make it fully contact with the water. The heating is combined to make the dissolution speed faster and the dissolution effect better. Then the powder is added to the water inside the mixing barrel 1 to avoid precipitation due to untimely dissolution, which greatly shortens the preparation time of the medicine solution and ensures the dissolution effect. It is more practical.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. An automatic dosing device for boiler water supply in a power plant, comprising a mixing barrel (1), a feed hopper (2) being arranged on the top surface of the mixing barrel (1), a PLC controller and a water pump (22) being arranged on the outer circumferential wall surface of the mixing barrel (1), characterized in that: It also comprises a dissolving component for dissolving the medicine powder, the dissolving component being arranged inside the stirring barrel (1), the dissolving component comprising: a cover plate (3), the cover plate (3) being fixedly mounted on the top surface of the stirring barrel (1).

2. The automatic dosing device for boiler water supply in a power plant according to claim 1, characterized in that: The dissolving component also includes a preliminary mixing bin (4) fixedly mounted on the bottom surface of the cover plate (3); a first connecting pipe (6) is fixedly sleeved on the inner circumferential wall surface of the discharge pipe of the feed hopper (2); a first fixing hole (5) is provided on the top surface of the cover plate (3); the inner circumferential wall surface of the first fixing hole (5) is fixedly sleeved on the first connecting pipe (6); a rotating mixing barrel (7) is arranged inside the preliminary mixing bin (4); a first circular through hole is provided on one side of the preliminary mixing bin (4); a bearing (8) is fixedly sleeved on the inner circumferential wall surface of the first circular through hole; a first gear (9) is fixedly sleeved on the outer circumferential wall surface of the bearing (8); a second circular through hole is provided on the top surface of the cover plate (3); a stirring frame (10) is movably sleeved on the inner circumferential wall surface of the second circular through hole; a face gear (11) is fixedly sleeved on the outer circumferential wall surface of the stirring frame (10); the face gear (11) meshes with the first gear (9); The first connecting pipe (6) is movably connected to the rotating mixing barrel (7), a plurality of flaps (12) are fixedly installed inside the rotating mixing barrel (7), a plurality of second fixing holes (13) are provided on the outer circular wall surface of the rotating mixing barrel (7), a third circular through hole is provided on one side of the preliminary mixing chamber (4), an electric heating rod (14) is fixedly connected to the inner circular wall surface of the third circular through hole, a fourth circular through hole is provided on one side of the preliminary mixing chamber (4), an electromagnetic valve (15) is fixedly connected to the inner circular wall surface of the fourth circular through hole, the electromagnetic valve (15) is electrically connected to the PLC controller, a supporting hole (31) is provided on the top surface of the cover plate (3), a second connecting pipe (16) is fixedly connected to the inner circular wall surface of the supporting hole (31), a flow valve (17) is fixedly connected to the outer circular wall surface of the second connecting pipe (16), and a fixed pipe (18) is fixedly connected to the inner circular wall surface of the flow valve (17).

3. The automatic dosing device for boiler water supply in a power plant according to claim 1 is characterized by: A third fixing hole (32) is provided on one side of the feed hopper (2), and a micro-auger (20) is movably sleeved on the inner circular wall of the third fixing hole (32). A first driving mechanism (19) is fixedly installed on one side of the feed hopper (2), and a driving motor of the first driving mechanism (19) is electrically connected to the PLC controller, and one end of the driving shaft of the first driving mechanism (19) is fixedly installed on the micro-auger (20).

4. The automatic dosing device for boiler water supply in a power plant according to claim 2, characterized in that: A second driving mechanism (21) is fixedly mounted on the top surface of the cover plate (3); the bottom surface of the driving shaft of the second driving mechanism (21) is fixedly mounted on the stirring frame (10); and the driving motor of the second driving mechanism (21) is electrically connected to the PLC controller.

5. The automatic dosing device for boiler water supply in a power plant according to claim 3 is characterized by: The bottom surface of the mixing barrel (1) and the outer circumferential wall surface of the mixing barrel (1) are respectively provided with connection holes (33); the inner circumferential wall surface of the connection hole (33) at the bottom is fixedly sleeved with a third connection pipe (23); the third connection pipe (23) is fixedly sleeved with the water inlet of the water pump (22); and the inner circumferential wall surface of the connection hole (33) at the top is fixedly sleeved with a water inlet pipe (24).

6. The automatic dosing device for boiler water supply in a power plant according to claim 1, characterized in that: A rectangular through hole is provided on one side of the feed hopper (2), and a glass (25) is fixedly sleeved inside the rectangular through hole.

7. The automatic dosing device for boiler water supply in a power plant according to claim 2, characterized in that: A support frame (26) is fixedly mounted on the top surface of the cover plate (3), and the support frame (26) is fixedly sleeved with the fixed pipe (18). A plurality of first support plates (27) are fixedly mounted on the top surface of the cover plate (3), and the first support plates (27) are fixedly mounted with the feed hopper (2).

8. The automatic dosing device for boiler water supply in a power plant according to claim 2, characterized in that: A limiting ring (28) is fixedly mounted on the inner bottom surface of the stirring barrel (1), and the limiting ring (28) is movably sleeved with the stirring frame (10).

9. The automatic dosing device for boiler water supply in a power plant according to claim 1, characterized in that: A second support plate (29) is fixedly mounted on the outer circular wall surface of the mixing barrel (1), and the second support plate (29) is fixedly mounted on the PLC controller.

10. The automatic dosing device for boiler water supply in a power plant according to claim 1, characterized in that: A bin vibrator (30) is fixedly mounted on one side of the feed hopper (2), and the bin vibrator (30) is electrically connected to the PLC controller.

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