A ring-shaped rotary dosing device for a boiler

Abstract

The application discloses a circular rotary medicine adding device for a boiler, which comprises a horizontal boiler body, an annular medicine adding bin is sleeved outside the boiler body, and the medicine adding bin is provided with an annular driving mechanism; the medicine adding bin and the boiler body are coaxial, and the medicine adding bin can rotate outside the boiler body under the action of the annular driving mechanism; a gap is left between the inner side end of the medicine adding bin and the outer side end surface of the boiler body; the upper end of the boiler body is provided with a medicine adding opening formed by two vertically upward protruding vertical plates; the vertical plates and the medicine adding opening are located in the gap, and a movable cover plate is embedded in the medicine adding opening. The technical scheme of the device realizes the medicine adding work of the boiler body through the annular medicine adding bin and the unit bin formed by the partition plate in the medicine adding bin, is very suitable for the horizontally placed boiler, and can reasonably utilize the external space.

Description

Technical Field

[0001] This invention relates to the field of boiler technology, and more specifically to a ring-shaped rotary dosing device for boilers. Background Technology

[0002] Existing dosing devices, such as the "Automatic Dosing Device for Power Plant Boiler Feedwater" disclosed in CN119393749A, the "Boiler Dosing Water Treatment Device" disclosed in CN117504647A, and the "External Large-Capacity Boiler Dosing System" disclosed in CN116617895A, all have a dosing structure installed at the upper end of the boiler. This existing technical design occupies a large amount of space and cannot make efficient use of space. In addition, it is basically designed for vertical boilers and cannot be applied to horizontal boilers.

[0003] In addition, in existing technologies, the types of drugs used for direct drug delivery are usually the same, and only the same type of drug can be placed in the same container. Furthermore, the dosage of drugs in existing technologies usually requires valve assembly design, rather than overall capacity design of the drug delivery chamber, resulting in an unreasonable overall structure.

[0004] Therefore, in order to solve the above-mentioned problems, it is necessary to develop a ring-shaped rotary dosing device with a reasonable structure that can be used in horizontal boilers and make reasonable use of the spare space of horizontal boilers. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a ring-shaped rotary dosing device for boilers; the technical solution is as follows:

[0006] A ring-shaped rotary dosing device for a boiler includes a horizontal boiler body. An annular dosing chamber is fitted around the outside of the boiler body. The dosing chamber is equipped with an annular drive mechanism. The dosing chamber and the boiler body are concentrically arranged. Under the action of the annular drive mechanism, the dosing chamber can rotate correspondingly outside the boiler body. A gap is left between the inner end of the dosing chamber and the outer end face of the boiler body. The upper end of the boiler body is formed by two vertically protruding plates to form a dosing port. The vertical plates and the dosing port are located within the gap. A movable cover plate is embedded in the dosing port.

[0007] The dosing chamber is further equipped with several partitions pointing towards the center of the boiler body. These partitions form several identical unit chambers within the dosing chamber. Each unit chamber contains the required powdered medicine, and each unit chamber has a dispensing port at its lower end. Each unit chamber also has a valve plate mechanism for opening and closing the dispensing port. The lower end face of the dispensing port and the upper end face of the dosing port are on the same circumference. When the dosing chamber rotates, causing the unit chamber to align with the dosing port at the upper end of the boiler body, the dispensing port is opened via the valve plate assembly. The cover plate at the dosing port is then moved to open the port, allowing the powdered medicine in the unit chamber to fall into the boiler body for dosing.

[0008] Furthermore, the annular plate on the outer wall of the dosing chamber is also provided with a hinged door panel corresponding to the position of each unit chamber. The hinged door panel can be opened and sealed closed, and the medicine powder is added to each unit chamber through the hinged door panel.

[0009] Furthermore, the hinged door panel is located in the middle of the annular plate of the dosing chamber, while two annular outer toothed rings are correspondingly provided on both sides.

[0010] The ring-shaped drive mechanism includes a drive motor and a drive gear mounted on the drive motor. The drive gear meshes with two external gear rings. Several sets of the drive motor and drive gear are evenly distributed outside the dosing chamber. The dosing chamber is supported and fixed by the drive gear and rotates accordingly. The dosing chamber is made of lightweight material.

[0011] Furthermore, the lower end of each unit compartment in the dosing chamber is set as a semi-circular structure, and the dosing port is set in the form of a strip at the bottom; and the dosing port is also set in the form of a strip, and the size of the dosing port is larger than the size of the dosing port. When the dosing port and the dosing port are aligned vertically, the dosing port covers the entire dosing port from below.

[0012] Furthermore, the valve plate assembly in the unit compartment includes a horizontally mounted rotating spindle and two rotating valve plates disposed on the rotating spindle; the rotating spindle is located at the center of the unit compartment, while the two rotating valve plates are respectively located on both sides of the dispensing port, and the rotating valve plates are pressed tightly against the semi-circular inner wall of the unit compartment, thus blocking the position of the dispensing port by the two rotating valve plates. When the rotating spindle rotates, the two rotating valve plates move away from the position of the dispensing port, and the dispensing port is opened.

[0013] Furthermore, a wear-resistant pressure pad is provided at the end of the rotary valve plate. When the rotary valve plate rotates with the main shaft, the wear-resistant pressure pad presses against the semi-circular inner wall.

[0014] Furthermore, a bearing is provided on the left end of the rotating spindle, which is mounted on the side wall of the unit compartment, while the right end of the rotating spindle extends out of the unit compartment, and a docking groove is also installed on the shaft end;

[0015] A linear moving mechanism is also installed at the upper end of the boiler body. The linear moving mechanism is positioned to the right of the chemical dosing port. A moving seat is installed on the linear moving mechanism, and a rotary motor is installed on the moving seat. A docking block is installed on the output shaft of the rotary motor, and the position of the docking block corresponds to that of the docking groove.

[0016] When the unit chamber rotates to the position where the dispensing port and the dosing port are aligned, the docking groove at the end of the rotating spindle also aligns with the position of the rotating motor. Under the action of the linear motion mechanism, the rotating motor is driven to move, causing the docking block to be inserted into the docking groove. This causes the rotating spindle to rotate via the rotating motor, which in turn drives the two rotating valve plates in the dosing chamber to rotate accordingly, thus closing and opening the dispensing port.

[0017] Furthermore, both the docking groove and the docking block are configured as hexagonal structures.

[0018] Furthermore, the movable seat is also equipped with a movable guide rail installed on the boiler body, and a connecting rod is provided at the front end of the movable seat. The other end of the connecting rod passes through the gap and is installed on the side wall of the cover plate. The cover plate is embedded in the vertical plate. When the movable seat drives the rotary motor to connect the docking block and the docking groove, the connecting rod drives the cover plate to move between the two vertical plates, thereby opening the chemical inlet and the chemical dosing port at the same time.

[0019] Beneficial Effects: The present invention has the following beneficial effects: The technical solution of this device realizes the injection of chemicals into the boiler body through a ring-shaped dosing chamber and unit chambers set by partitions within the dosing chamber. It is very suitable for horizontally placed boilers, which can make reasonable use of external space. The present invention realizes the opening and closing of the dosing port by setting the bottom of the unit chamber into a semi-circular structure and setting a rotating main shaft and a rotating valve plate at the dosing port. The docking slot and docking block are docked through a direct moving mechanism, realizing the control of the rotating main shaft and the rotating valve plate, and the dosing port cover can be opened in a linkage manner to realize the dosing. The rotating valve plate in the unit chamber also has the function of accelerating the dosing and preventing chemical residues. It can realize the complete injection of chemicals. On the one hand, it can realize the injection of different chemicals, and on the other hand, it can realize the quantitative addition of chemicals. The overall structure is a set-type installation on the outside of the horizontal boiler body, which effectively saves the installation space and position of the overall device, and the structure is more reasonable and ingenious. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present invention;

[0021] Figure 2 for Figure 1 Internal structure diagram;

[0022] Figure 3 for Figure 1 Right side view;

[0023] Figure 4 for Figure 2 Sectional view of AA;

[0024] Figure 5 for Figure 2 Diagram showing the connection between the middle docking block and the docking groove;

[0025] Figure 6 This is a structural diagram of the unit compartment in this invention;

[0026] Figure 7 for Figure 6 A schematic diagram showing the movement of two rotating valve plates inside the middle unit compartment;

[0027] The components include: boiler body 1, chemical dosing chamber 2, gap 3, vertical plate 4, chemical dosing port 5, cover plate 6, partition plate 7, unit compartment 8, chemical discharge port 9, hinged door panel 10, external gear ring 11, drive motor 12, drive gear 13, rotating spindle 14, rotating valve plate 15, wear-resistant pressure pad 16, bearing component 17, docking groove 18, linear movement mechanism 19, moving seat 20, rotating motor 21, docking block 22, moving guide rail 23, and connecting rod 24. Detailed Implementation

[0028] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention, and it should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0029] like Figure 1 As shown, an annular rotary dosing device for a boiler includes a horizontal boiler body 1. An annular dosing chamber 2 is fitted on the outside of the boiler body 1. The dosing chamber 2 is equipped with an annular drive mechanism. The dosing chamber 2 and the boiler body 1 are arranged concentrically. Under the action of the annular drive mechanism, the dosing chamber 2 can rotate correspondingly outside the boiler body 1. A gap 3 is left between the inner end of the dosing chamber 2 and the outer end face of the boiler body 1. The upper end of the boiler body 1 is formed by two vertically protruding vertical plates 4 to form a dosing port 5. The vertical plates 4 and the dosing port 5 are both located within the gap 3. A movable cover plate 6 is embedded in the dosing port 5.

[0030] The dosing chamber 2 is also equipped with several partitions 7 pointing to the center of the boiler body 1. The partitions 7 form several unit chambers 8 of the same size in the dosing chamber 2. Each unit chamber 8 is equipped with the required powdered medicine. Each unit chamber 8 has a dispensing port 9 at its lower end and a valve plate mechanism for opening and closing the dispensing port 9. The lower end face of the dispensing port 9 and the upper end face of the dosing port 5 are on the same circumference. When the dosing chamber 2 rotates and drives the unit chamber 8 so that the dispensing port 9 at the lower end of the unit chamber 8 corresponds to the dosing port 5 at the upper end of the boiler body 1, the dispensing port 9 is opened by the valve plate assembly. The cover plate 6 at the dosing port 5 is moved accordingly to open the dosing port 5, and the powdered medicine in the unit chamber 8 falls into the boiler body 1 to achieve dosing.

[0031] The outer wall of the dosing chamber 2 is also provided with a hinged door panel 10 corresponding to the position of each unit chamber 8. The hinged door panel 10 can be opened and sealed closed, and medicine powder is added to each unit chamber 8 through the hinged door panel 10.

[0032] The hinged door panel 10 is located in the middle of the annular plate of the dosing chamber 2, while two annular outer toothed rings 11 are correspondingly provided on both sides.

[0033] The annular drive mechanism includes a drive motor 12 and a drive gear 13 mounted on the drive motor 12. The drive gear 13 meshes with two external gear rings 11. Several sets of drive motor 12 and drive gear 13 are evenly distributed outside the dosing chamber 2. The dosing chamber 2 is supported and fixed by the drive gear 13 and drives the dosing chamber 2 to rotate accordingly. The dosing chamber 2 is made of lightweight material.

[0034] The lower end of each unit compartment 8 in the dosing compartment 2 is set as a semi-circular structure, and the dosing port 9 is set at the bottom in a strip shape; the dosing port 5 is also set in a strip shape, and the size of the dosing port 5 is larger than the size of the dosing port 9. When the dosing port and the dosing port 9 are aligned vertically, the dosing port covers the entire dosing port 9 from below.

[0035] The valve plate assembly inside the unit compartment 8 includes a horizontally mounted rotating spindle 14 and two rotating valve plates 15 mounted on the rotating spindle 14. The rotating spindle 14 is located at the center of the unit compartment 8, while the two rotating valve plates 15 are located on both sides of the drug dispensing port 9. The rotating valve plates 15 are pressed tightly against the semi-circular inner wall of the unit compartment 8, blocking the position of the drug dispensing port 9. When the rotating spindle 14 rotates, the two rotating valve plates 15 move away from the position of the drug dispensing port 9, and the drug dispensing port 9 is opened.

[0036] A wear-resistant pressure pad 16 is also provided at the end of the rotary valve plate 15. When the rotary valve plate 15 rotates with the rotary spindle 14, the wear-resistant pressure pad 16 presses against the semi-circular inner wall.

[0037] A bearing 17 is provided on the left end of the rotating spindle 14, and is installed on the side wall of the unit compartment 8 through the bearing 17. The right end of the rotating spindle 14 extends out of the unit compartment 8, and a docking groove 18 is also installed on the shaft end.

[0038] A linear moving mechanism 19 is also installed at the upper end of the boiler body 1. The linear moving mechanism 19 is positioned to the right of the chemical dosing port 5. A moving seat 20 is installed on the linear moving mechanism 19. A rotary motor 21 is installed on the moving seat 20. A docking block 22 is installed on the output shaft of the rotary motor 21. The docking block 22 corresponds to the docking groove 18.

[0039] When the unit chamber 8 rotates to the position where the dispensing port 9 corresponds to the position of the dosing port 5, the docking groove 18 at the end of the rotating main shaft 14 also corresponds to the position of the rotating motor 21. Under the action of the linear movement mechanism 19, the rotating motor 21 is driven to move, so that the docking block 22 is inserted into the docking groove 18. Thus, the rotating main shaft 14 is driven to rotate by the rotating motor 21, which in turn drives the two rotating valve plates 15 in the dosing chamber 2 to rotate accordingly, thereby realizing the closing and opening of the dispensing port 9.

[0040] Both the docking groove 18 and the docking block 22 are hexagonal structures. The movable seat 20 is also equipped with a movable guide rail 23 installed on the boiler body 1. A connecting rod 24 is also provided at the front end of the movable seat 20. The other end of the connecting rod 24 passes through the gap 3 and is installed on the side wall of the cover plate 6. The cover plate 6 is embedded in the vertical plate 4. When the movable seat 20 drives the rotary motor 21 to dock the docking block 22 with the docking groove 18, the connecting rod 24 drives the cover plate 6 to move between the two vertical plates 4, thereby opening the chemical inlet 9 and the chemical dosing port 5 at the same time.

[0041] The working process of this invention is as follows: In this invention, each unit chamber 8 of the dosing chamber 2 can be dosed through the hinged door plate 10 set on the outside. The drugs in each unit chamber 8 can be different, and the amount can also be different, so different drugs and different amounts of drugs can be added. The dosing chamber 2 itself is concentrically mounted on the outside of the boiler body 1. This invention is designed for horizontal boilers. If it is a vertical boiler, the technical solution of this invention is not suitable. The part of the hinged door plate 10 is used for adding drugs, and the positions on both sides of the hinged door plate 10 are empty. This invention makes good use of the positions on both sides to set two rows of annular external gear rings 11. In addition, a matching drive gear 13 and a drive motor 12 are set to drive the dosing chamber 2 to rotate accordingly. In this invention, the dosing chamber 2 can be fixed and supported by multiple externally set drive gears 13, such as Figure 3 As shown, the position of the dosing chamber 2 is ensured, and in this invention, the dosing chamber 2 can be made of a lightweight material, such as ceramic composite material, rigid foam plastic, etc., which is lightweight and easy to use.

[0042] The rotation angle of the drive motor 12 is controllable. After each rotation, the position of a unit compartment 8 is controlled to correspond with the position of the dosing port 5 at the top of the boiler body 1. The dosing port 5 itself is composed of two vertical plates 4, and a movable cover plate 6 is embedded inside. The vertical plates 4 and the cover plate 6 are located within the gap 3. The dosing port 9 of the unit compartment 8 and the dosing port 5 of the boiler body 1 are on the same circumference. Therefore, when the dosing port 5 and the dosing port 9 are rotated to the corresponding positions, the two ports are exactly connected. The connection and separation are achieved by rotation. Then the dosing port 5 and the dosing port 9 can be opened to add medicine.

[0043] Firstly, regarding the opening mechanism of the drug dispensing port 9, the internal space of the drug dispensing chamber 2 in this invention is formed into multiple unit chambers 8 by partitions 7. The lower end of each unit chamber 8 is designed in a semi-circular shape. This semi-circular design is crucial as it directly affects the opening and closing of the drug dispensing port 9. Due to the semi-circular structure, a rotating main shaft 14 can be directly positioned at the center. Two rotating valve plates 15 are mounted on the rotating main shaft 14. The position of the rotating valve plates 15 is very important, as they are located on both sides of the drug dispensing port 9, thus completely sealing off the drug dispensing port 9 and keeping it closed. The dispensing port can only be opened when the rotating valve plates 15 rotate away from the position of the drug dispensing port 9. The design of the drug dispensing port 5 is simply to embed a cover plate 6 inside the vertical plate 4.

[0044] When opening the drug inlet 9, it is necessary to rotate the mating groove 18 at the end of the main shaft 14 and the mating block 22 at the end of the output shaft of the rotary motor 21. When the direct moving mechanism drives the moving seat 20 to move, it will drive the rotary motor 21 to move, so that the mating groove 18 and the mating block 22 are mated. At this time, the rotary motor 21 can drive the rotating shaft and the rotating valve plate 15 to rotate. Figure 5 As shown, the movable seat 20 in this invention is also connected to the cover plate 6 via a connecting rod 24. During the movement of the movable seat 20, not only can the docking groove 18 and the docking block 22 be docked, but the cover plate 6 can also be pushed open and the dosing port 5 can be opened through the design of the connecting rod 24. The two form a linkage effect, which is very ingenious.

[0045] like Figure 7As shown, when the rotary motor 21 drives the rotary spindle 14 to rotate, the two rotary valve plates 15 move away from the position of the dosing port 9, and the dosing port 9 is opened accordingly. The medicine in the unit chamber 8 enters the dosing port 5 from the dosing port 9 and then falls into the boiler body 1. The rotary valve plates 15 can also rotate multiple times in the unit chamber 8 at the same time, which accelerates the dosing of the medicine in the unit chamber 8 and ensures that all the medicine in the unit chamber 8 falls into the boiler body 1 without any medicine residue. After the medicine is added, the two rotary valve plates 15 are controlled to return to their original positions, and the dosing port 9 is blocked accordingly. After the linear movement mechanism 19 returns to its original position, the cover plate 6 also returns to its original position to block the dosing port 5. The docking groove 18 and the docking block 22 are also separated accordingly without affecting the rotation of the dosing chamber 2.

[0046] In the above process, wear-resistant pressure pads 16 are provided at the ends of both rotary valve plates 15 of the present invention. The design of the wear-resistant pressure pads 16 is quite important. First, it can completely seal the drug outlet 9 to prevent leakage. Another important point is that the friction of the wear-resistant pressure pads 16 can fix the rotary valve plates 15 to the inner wall of the chamber. Because when the docking groove 18 is separated from the docking block 22, the rotary valve plates 15 are actually not controlled by any component. Without the design of the wear-resistant pressure pads 16, the rotary valve plates 15 would be unable to move freely. If the unit compartment 8 cannot be fixed in place, sealing will be impossible. However, with the design of the wear-resistant pressure pad 16, the rotating valve plate 15 can be completely fixed by the friction of the wear-resistant pressure pad 16. In addition, the present invention can also set limiting grooves on the inner wall of the compartment on both sides of the discharge port, corresponding to the position of the wear-resistant pressure block. When the rotating valve plate 15 is sealing the drug discharge port 9, it is located in the limiting groove, making the structure more stable. In addition, the friction between the rotating main shaft 14 and the side wall of the unit compartment 8 can be increased accordingly, so that the rotating main shaft 14 will not move arbitrarily. The structural design is very reasonable.

[0047] In addition, the size of the dosing port 5 in this invention is significantly larger than that of the dispensing port 9, such as... Figure 2 and Figure 5 As shown, this ensures that the medicine can completely enter the dosing port 5 and that no medicine will escape.

[0048] The above-described specific embodiments are merely preferred embodiments of this embodiment and are not intended to limit the implementation of this embodiment or the scope of the claims. All equivalent changes and modifications made based on the scope of patent protection of this embodiment should be included within the scope of the patent application of this embodiment.

Claims

1. A ring-shaped rotary dosing device for boilers, characterized in that: The boiler body (1) is horizontal. A ring-shaped dosing chamber (2) is fitted on the outside of the boiler body (1). The dosing chamber (2) is equipped with a ring-shaped drive mechanism. The dosing chamber (2) and the boiler body (1) are set in the same circle. Under the action of the ring-shaped drive mechanism, the dosing chamber (2) can rotate on the outside of the boiler body (1). A gap (3) is left between the inner end of the dosing chamber (2) and the outer end face of the boiler body (1). The upper end of the boiler body (1) is formed by two vertically upward protruding vertical plates (4) to form a dosing port (5). The vertical plates (4) and the dosing port (5) are both located in the gap (3). A movable cover plate (6) is embedded in the dosing port (5). The dosing chamber (2) is also equipped with several partitions (7) pointing towards the center of the boiler body (1). The partitions (7) form several unit chambers (8) of the same size in the dosing chamber (2). Each unit chamber (8) is equipped with the required powdered medicine. Each unit chamber (8) has a dispensing port (9) at its lower end. Each unit chamber (8) is equipped with a valve plate mechanism for opening and closing the dispensing port (9). The lower end face of the dosing chamber (2) and the upper end face of the dosing port (5) are on the same circumference. When the dosing chamber (2) rotates and drives the unit chamber (8) so that the dosing port (9) at the lower end of the unit chamber (8) corresponds to the dosing port (5) at the upper end of the boiler body (1), the dosing port (9) is opened by the valve plate assembly, and the cover plate (6) at the dosing port (5) is moved accordingly to open the dosing port (5). The drug powder in the unit chamber (8) falls into the boiler body (1) to realize the dosing.

2. The annular rotary dosing device for boilers according to claim 1, characterized in that: The outer wall of the drug delivery chamber (2) is also provided with a hinged door panel (10) corresponding to the position of each unit chamber (8). The hinged door panel (10) can be opened and sealed closed, and drug powder is added to each unit chamber (8) through the hinged door panel (10).

3. The annular rotary dosing device for boilers according to claim 2, characterized in that: The hinged door panel (10) is located in the middle of the annular plate of the dosing chamber (2), while two annular outer toothed rings (11) are correspondingly provided on both sides. The ring-shaped drive mechanism includes a drive motor (12) and a drive gear (13) mounted on the drive motor (12). The drive gear (13) meshes with two external gear rings (11). The combination of the drive motor (12) and the drive gear (13) is arranged in several groups and evenly distributed outside the dosing chamber (2). The dosing chamber (2) is supported and fixed by the drive gear (13) and the dosing chamber (2) is rotated accordingly. The dosing chamber (2) is made of lightweight material.

4. The annular rotary dosing device for boilers according to claim 1, characterized in that: The lower end of each unit compartment (8) in the dosing compartment (2) is set as a semi-circular structure, and the dosing port (9) is set in strip form at the bottom. The dosing port (5) is also set in strip form, and the size of the dosing port (5) is larger than the size of the dosing port (9). When the dosing port and the dosing port (9) are in the same vertical position, the dosing port covers the entire dosing port (9) from below.

5. A ring-shaped rotary dosing device for a boiler according to claim 4, characterized in that: The valve plate assembly in the unit compartment (8) includes a horizontally mounted rotating spindle (14) and two rotating valve plates (15) set on the rotating spindle (14). The rotating spindle (14) is located at the center of the unit compartment (8), while the two rotating valve plates (15) are located on both sides of the drug dispensing port (9). The rotating valve plates (15) are pressed tightly against the semi-circular inner wall of the unit compartment (8) to block the position of the drug dispensing port (9). When the rotating spindle (14) rotates, the two rotating valve plates (15) move away from the position of the drug dispensing port (9), and the drug dispensing port (9) is opened.

6. A ring-shaped rotary dosing device for a boiler according to claim 5, characterized in that: A wear-resistant pressure pad (16) is also provided at the end of the rotary valve plate (15). When the rotary valve plate (15) rotates with the rotary spindle (14), the wear-resistant pressure pad (16) presses against the semi-circular inner wall.

7. A ring-shaped rotary dosing device for a boiler according to claim 5, characterized in that: The left end of the rotating spindle (14) is provided with a bearing component (17), which is installed on the side wall of the unit compartment (8) through the bearing component (17), while the right end of the rotating spindle (14) extends out of the unit compartment (8), and a docking groove (18) is also installed at the shaft end. A linear moving mechanism (19) is also installed at the upper end of the boiler body (1). The linear moving mechanism (19) is positioned to the right of the dosing port (5). A moving seat (20) is installed on the linear moving mechanism (19). A rotary motor (21) is installed on the moving seat (20). A docking block (22) is installed on the output shaft of the rotary motor (21). The docking block (22) is positioned in relation to the docking groove (18). When the unit chamber (8) rotates to the position where the dispensing port (9) corresponds to the position of the dosing port (5), the docking groove (18) at the end of the rotating spindle (14) also corresponds to the position of the rotating motor (21). Under the action of the linear movement mechanism (19), the rotating motor (21) is driven to move, so that the docking block (22) is inserted into the docking groove (18), thereby driving the rotating spindle (14) to rotate through the rotating motor (21), and then driving the two rotating valve plates (15) in the dosing chamber (2) to rotate accordingly, so as to realize the closing and opening of the dispensing port (9).

8. A ring-shaped rotary dosing device for a boiler according to claim 7, characterized in that: Both the docking groove (18) and the docking block (22) are configured as hexagonal structures.

9. A ring-shaped rotary dosing device for a boiler according to claim 7, characterized in that: The movable seat (20) is also equipped with a movable guide rail (23) installed on the boiler body (1), and a connecting rod (24) is also provided at the front end of the movable seat (20). The other end of the connecting rod (24) passes through the gap (3) and is installed on the side wall of the cover plate (6). The cover plate (6) is embedded in the vertical plate (4). When the movable seat (20) drives the rotary motor (21) to realize the docking of the docking block (22) and the docking groove (18), the connecting rod (24) drives the cover plate (6) to move between the two vertical plates (4), thereby opening the dosing port (5) at the same time as opening the dosing port (9).

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