Wind powder adjusting device for boiler coal pulverizing system

Abstract

The utility model discloses an air pulverized coal adjusting device for a boiler pulverizing system, which belongs to the technical field of boilers and comprises a protective shell, an adjusting bin is fixedly connected to the side face of the protective shell, and a bearing is fixedly connected to the surface of the adjusting bin so that a first rotating shaft can penetrate through the adjusting bin. The air and powder adjusting device comprises a first rotating shaft, the bottom end of the first rotating shaft is fixedly connected with a threaded column, the surface of the threaded column is sleeved with a threaded cap, the surface of the threaded cap is fixedly connected with a connecting block, and one end of the connecting block is fixedly connected with a movable plate. In the process that a worker uses the device to adjust wind powder, the worker only needs to drive a first rotating shaft to rotate through a rotary knob, a threaded cap can drive a transmission rack on the surface of a movable plate to move through a connecting block, and therefore the worker can conveniently adjust the angle of an adjusting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, and more specifically, to an air-powder regulating device for a boiler pulverizing system. Background Art

[0002] The boiler pulverizing system is an important part of thermal power plants and industrial boilers. Its performance is directly related to the combustion efficiency, economy, and environmental protection emission level of the boiler. As the core link of the pulverizing system, air-powder regulation aims to optimize the combustion process by precisely controlling parameters such as the air-powder ratio, flow rate, and fineness of pulverized coal, and improve the overall operation efficiency and stability of the boiler. The air-powder pipeline is a pipeline system for air transportation and distribution. The pulverizing system is responsible for grinding raw coal into pulverized coal with qualified fineness, and the air-powder pipeline is responsible for transporting it to the boiler for combustion. Currently, it is necessary for staff to adjust the flow rate of the air-powder pipeline. However, the existing devices are not convenient for staff to adjust and control the flow rate of air-powder, and it is not convenient for staff to connect and fix the device to the air-powder pipeline. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide an air-powder regulating device for a boiler pulverizing system, which has the characteristics of being convenient for adjusting and controlling the flow rate of air-powder, and being convenient for connecting and fixing the device to the air-powder pipeline.

[0005] (2) Technical Solutions

[0006] To achieve the above purpose, the utility model provides an air-powder regulating device for a boiler pulverizing system, including a protective shell. A regulating chamber is fixedly connected to the side of the protective shell. A bearing is fixedly connected to the surface of the regulating chamber so that a first rotating shaft passes through its interior. A threaded column is fixedly connected to the bottom end of the first rotating shaft. A threaded nut is sleeved on the surface of the threaded column. A connecting block is fixedly connected to the surface of the threaded nut. One end of the connecting block is fixedly connected to a movable plate. A transmission rack is fixedly connected to the surface of the movable plate. A bearing is fixedly connected to the interior of the protective shell so that a third rotating shaft passes through its interior. The third rotating shaft passes through the interior of the regulating chamber. A transmission gear is fixedly connected to the surface of the third rotating shaft. A regulating plate is fixedly connected to the surface of the third rotating shaft. A fixed pipe is fixedly connected to the surface of the protective shell. A connecting head is fixedly connected to one end of the fixed pipe. A connecting pipe passes through the interior of the connecting head. A first fixing plate is fixedly connected to the surface of the connecting head. A second fixing plate is fixedly connected to the surface of the connecting pipe. A limiting groove is fixedly connected to the surface of the first fixing plate. A limiting rod passes through the interior of the limiting groove. A spring is sleeved on the surface of the limiting rod. A clamping block is fixedly connected to one end of the limiting rod.

[0007] When using the air-powder regulating device for the boiler pulverizing system of this technical solution, by driving the first rotating shaft to rotate through the knob, the threaded nut can drive the transmission rack on the surface of the movable plate through the connecting block, which is convenient for adjusting the angle of the adjusting plate. And with the cooperation of the transmission rack and the transmission gear, the transmission rack can drive the adjusting plates on the surfaces of multiple third rotating shafts to rotate through the transmission gear, so as to adjust and control the flow rate of the air-powder. At the same time, with the cooperation of the limiting rod and the spring, the clamping block can be closely attached to the inside of the clamping groove, which is convenient for connecting and fixing the device to the pipeline.

[0008] Further, a bearing is fixedly connected inside the adjusting bin so that a second rotating shaft passes through it, and the second rotating shaft is fixedly connected to the threaded column.

[0009] Further, a knob is fixedly connected to the top end of the first rotating shaft, a slider is fixedly connected to the surface of the movable plate, and a sliding groove is opened inside the adjusting bin.

[0010] Further, the slider is movably connected inside the sliding groove, and there are two groups of both the sliding groove and the slider, and they are symmetrically arranged inside the adjusting bin.

[0011] Further, a clamping groove is opened on the surface of the second fixing plate, the clamping block is clamped inside the clamping groove, and the connecting pipe and the connecting head are fixedly connected by threads.

[0012] Further, there are multiple groups of both the third rotating shaft and the adjusting plate, and they are evenly arranged inside the protective shell, and the transmission gear meshes with the transmission rack.

[0013] (3) Beneficial effects

[0014] To sum up, the present utility model has the following beneficial effects:

[0015] 1. For the air-powder regulating device for the boiler pulverizing system, by setting the threaded column and the threaded nut, when the staff uses the device to adjust the air-powder, the staff only needs to drive the first rotating shaft to rotate through the knob, and the threaded nut can drive the transmission rack on the surface of the movable plate through the connecting block, so as to facilitate the staff to adjust the angle of the adjusting plate;

[0016] 2. For the air-powder regulating device for the boiler pulverizing system, by setting the transmission rack and the transmission gear, when the staff uses the device to adjust the air-powder, with the cooperation of the transmission rack and the transmission gear, the transmission rack can drive the adjusting plates on the surfaces of multiple third rotating shafts to rotate through the transmission gear, so as to achieve the effect of adjusting and controlling the flow rate of the air-powder;

[0017] 3. The air powder regulating device for the boiler coal pulverizing system is provided with a limiting rod and a spring. When the staff uses the device to regulate the air powder, the staff only needs to insert the connecting pipe into the inside of the connector. With the cooperation of the limiting rod and the spring, the clamping block can be closely attached to the inside of the clamping groove, so as to facilitate the connection and fixation of the device and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for description in the specific embodiments or the prior art. Obviously, the drawings described below are only one embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 is a three-dimensional sectional structural schematic diagram of the present invention;

[0021] Figure 3 is a three-dimensional structural schematic diagram of the connector in the present invention;

[0022] Figure 4 is a three-dimensional structural schematic diagram of the threaded column in the present invention.

[0023] The reference numerals in the drawings are:

[0024] 1. Protective shell; 2. Adjustment chamber; 3. First rotating shaft; 4. Threaded column; 5. Threaded nut; 6. Second rotating shaft; 7. Knob; 8. Connecting block; 9. Movable plate; 10. Driving rack; 11. Slide block; 12. Slide groove; 13. Third rotating shaft; 14. Driving gear; 15. Fixed pipe; 16. Connector; 17. Connecting pipe; 18. First fixing plate; 19. Limiting groove; 20. Second fixing plate; 21. Clamping groove; 22. Limiting rod; 23. Spring; 24. Clamping block; 25. Adjustment plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the technical solutions in the specific embodiments of the present invention are clearly and completely described below to further illustrate the present invention. Obviously, the described specific embodiments are only a part of the embodiments of the present invention, rather than all the styles.

[0026] Example:

[0027] The following combines the attached Figures 1-4A further detailed description of the present utility model will be given.

[0028] Please refer to Figures 1-4 , the present utility model provides a technical solution: a wind and powder regulating device for a boiler pulverizing system, including a protective shell 1, a regulating bin 2 is fixedly connected to the side of the protective shell 1, and bearings are fixedly connected to the surface of the regulating bin 2 so that a first rotating shaft 3 penetrates through it. A threaded column 4 is fixedly connected to the bottom end of the first rotating shaft 3, and a threaded nut 5 is sleeved on the surface of the threaded column 4. By setting the threaded column 4 and the threaded nut 5, only by driving the first rotating shaft 3 to rotate through a knob 7, the threaded nut 5 can drive a transmission rack 10 on the surface of a movable plate 9 through a connecting block 8, facilitating the staff to adjust the angle of an adjusting plate 25. A connecting block 8 is fixedly connected to the surface of the threaded nut 5, one end of the connecting block 8 is fixedly connected to a movable plate 9, and a transmission rack 10 is fixedly connected to the surface of the movable plate 9. Bearings are fixedly connected to the inside of the protective shell 1 so that a third rotating shaft 13 penetrates through it. The third rotating shaft 13 penetrates through the inside of the regulating bin 2, and a transmission gear 14 is fixedly connected to the surface of the third rotating shaft 13. By setting the transmission rack 10 and the transmission gear 14, under the cooperation of the transmission rack 10 and the transmission gear 14, the transmission rack 10 can drive adjusting plates 25 on the surfaces of multiple third rotating shafts 13 to rotate through the transmission gear 14, achieving the effect of adjusting and controlling the flow rate of wind and powder. An adjusting plate 25 is fixedly connected to the surface of the third rotating shaft 13. A fixed pipe 15 is fixedly connected to the surface of the protective shell 1, a connecting head 16 is fixedly connected to one end of the fixed pipe 15, a connecting pipe 17 penetrates through the inside of the connecting head 16, a first fixing plate 18 is fixedly connected to the surface of the connecting head 16, a second fixing plate 20 is fixedly connected to the surface of the connecting pipe 17, a limiting groove 19 is fixedly connected to the surface of the first fixing plate 18, a limiting rod 22 penetrates through the inside of the limiting groove 19, and a spring 23 is sleeved on the surface of the limiting rod 22. By setting the limiting rod 22 and the spring 23, only by inserting the connecting pipe into the inside of the connecting head 16, under the cooperation of the limiting rod 22 and the spring 23, a clamping block 24 can be tightly attached to the inside of a clamping groove 21, facilitating the connection and fixation of the device and the pipeline. A clamping block 24 is fixedly connected to one end of the limiting rod 22.

[0029] Specifically, bearings are fixedly connected to the inside of the regulating bin 2 so that a second rotating shaft 6 penetrates through it, and the second rotating shaft 6 is fixedly connected to the threaded column 4.

[0030] Specifically, a knob 7 is fixedly connected to the top end of the first rotating shaft 3, a slider 11 is fixedly connected to the surface of the movable plate 9, and a sliding groove 12 is opened inside the regulating bin 2.

[0031] Specifically, the slider 11 is movably connected to the inside of the sliding groove 12, and there are two groups of both the sliding groove 12 and the slider 11, and they are symmetrically arranged inside the regulating bin 2.

[0032] By adopting the above technical solution, with the cooperation of the sliding groove 12 and the slider 11, the threaded nut 5 can drive the movable plate 9 to move directionally inside the adjustment bin 2 through the connecting block 8, avoiding the deviation of the movable plate 9 during the movement process.

[0033] Specifically, a clamping groove 21 is formed on the surface of the second fixing plate 20, the clamping block 24 is clamped inside the clamping groove 21, and the connecting pipe 17 and the connecting head 16 are fixedly connected by threads.

[0034] Specifically, there are multiple groups of the third rotating shafts 13 and the adjusting plates 25, and they are evenly arranged inside the protective shell 1, and the transmission gears 14 are engaged with the transmission racks 10.

[0035] The working principle of the present utility model is as follows: when the present utility model is in use, first move the device to a suitable position, and then detect the integrity of the device. When the staff uses the device to adjust the air powder, first the staff passes the connecting pipe 17 through the inside of the connecting head 16, and with the cooperation of the limiting rod 22 and the spring 23, the clamping block 24 can be closely attached to the inside of the clamping groove 21, so as to facilitate the connection and fixation of the device and the pipeline. Then the staff drives the first rotating shaft 3 to rotate through the knob 7. At the same time, the first rotating shaft 3 drives the threaded nut 5 to move through the threaded column 4, and the threaded nut 5 drives the movable plate 9 to move through the connecting block 8, so that the transmission rack 10 on the surface of the movable plate 9 moves directionally inside the adjustment bin 2, thus facilitating the staff to adjust the angle of the adjusting plate 25. And with the cooperation of the transmission rack 10 and the transmission gear 14, the transmission rack 10 drives the adjusting plates 25 on the surfaces of multiple groups of the third rotating shafts 13 to rotate through the transmission gear 14, thereby completing the process of adjusting the flow rate of the air powder.

[0036] This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. An air-powder regulating device for a boiler pulverizing system, comprising a protective shell (1), characterized in that: The side of the protective shell (1) is fixedly connected to an adjusting chamber (2), the surface of the adjusting chamber (2) is fixedly connected to a bearing so that a first rotating shaft (3) is passed through the inside thereof, the bottom end of the first rotating shaft (3) is fixedly connected to a threaded column (4), the surface of the threaded column (4) is sleeved with a threaded cap (5), the surface of the threaded cap (5) is fixedly connected to a connecting block (8), one end of the connecting block (8) is fixedly connected to a movable plate (9), the surface of the movable plate (9) is fixedly connected to a transmission rack (10), the interior of the protective shell (1) is fixedly connected to a bearing so that a third rotating shaft (13) is passed through the inside of the adjusting chamber (2), the surface of the third rotating shaft (13) is fixedly connected to a transmission rack (10), and the third rotating shaft (13) is passed through the inside of the adjusting chamber (2). The protective shell (1) is provided with a fixing tube (15) fixedly connected to the surface of the third rotating shaft (13), a connecting head (16) fixedly connected to one end of the fixing tube (15), a connecting tube (17) is passed through the interior of the connecting head (16), a first fixing plate (18) is fixedly connected to the surface of the connecting head (16), a second fixing plate (20) is fixedly connected to the surface of the connecting tube (17), a limiting groove (19) fixedly connected to the surface of the first fixing plate (18), a limiting rod (22) is passed through the interior of the limiting groove (19), a spring (23) is sleeved on the surface of the limiting rod (22), and a clamping block (24) is fixedly connected to one end of the limiting rod (22).

2. The air-powder regulating device for a boiler pulverizing system according to claim 1, characterized in that: The inside of the regulating chamber (2) is fixedly connected with a bearing so that a second rotating shaft (6) is passed through the inside of the regulating chamber, and the second rotating shaft (6) is fixedly connected to the threaded column (4).

3. The air-powder regulating device for a boiler pulverizing system according to claim 1, characterized in that: The top end of the first rotating shaft (3) is fixedly connected to a knob (7), the surface of the movable plate (9) is fixedly connected to a slider (11), and a sliding groove (12) is provided inside the regulating chamber (2).

4. The air-powder regulating device for a boiler pulverizing system according to claim 3 is characterized in that: The slider (11) is movably connected inside the slide groove (12), and there are two groups of the slide groove (12) and the slider (11), which are symmetrically arranged inside the adjustment chamber (2).

5. The air-powder regulating device for a boiler pulverizing system according to claim 1, characterized in that: A clamping groove (21) is provided on the surface of the second fixing plate (20), the clamping block (24) is clamped inside the clamping groove (21), and the connecting pipe (17) and the connecting head (16) are fixedly connected by threads.

6. The air-powder regulating device for a boiler pulverizing system according to claim 1, characterized in that: The third rotating shaft (13) and the adjusting plate (25) are provided in multiple groups and are evenly arranged inside the protective shell (1), and the transmission gear (14) and the transmission rack (10) are meshed with each other.

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