CN219674287U - Gas-solid two-phase bipartite diversion mixing balance adjusting device - Google Patents
Gas-solid two-phase bipartite diversion mixing balance adjusting device Download PDFInfo
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- CN219674287U CN219674287U CN202320528089.3U CN202320528089U CN219674287U CN 219674287 U CN219674287 U CN 219674287U CN 202320528089 U CN202320528089 U CN 202320528089U CN 219674287 U CN219674287 U CN 219674287U
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- 239000007787 solid Substances 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 191
- 239000003245 coal Substances 0.000 claims abstract description 90
- 238000009792 diffusion process Methods 0.000 claims abstract description 16
- 239000002817 coal dust Substances 0.000 claims description 29
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 239000000203 mixture Substances 0.000 description 18
- 230000001276 controlling effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Abstract
The utility model discloses a gas-solid two-phase bi-division diversion mixing balance adjusting device, and relates to the technical field of adjusting and controlling devices. The device comprises a diffusion section, a powder quantity adjusting section and an air quantity adjusting section which are sequentially arranged, wherein the diffusion section comprises a powder inlet pipe, a first powder inlet pipe and a second powder inlet pipe are respectively communicated with the left side and the right side of a powder inlet of the powder inlet pipe, and the first powder inlet pipe and the second powder inlet pipe are respectively communicated with the powder quantity adjusting section; the powder quantity adjusting section is arranged in a circular ring shape and comprises a mixing part and an adjusting part, the mixing part is provided with a coal powder adjusting rod, and the coal powder adjusting rod is provided with a coal powder guide plate; the air quantity adjusting section comprises a powder outlet pipe, the powder outlet pipe is connected to an adjusting part of the powder quantity adjusting section, the powder outlet pipe comprises a powder outlet pipe inlet, the powder inlet pipe is periodically shielded when the pulverized coal guide plate rotates, an air quantity adjusting rod is rotatably arranged on the powder outlet pipe, and an air quantity adjusting plate is arranged on the air quantity adjusting rod. The utility model provides a mixing balance adjusting device for pulverized coal and air through a pulverized coal guide plate and an air quantity adjusting plate.
Description
Technical Field
The utility model relates to the technical field of adjusting and controlling devices, in particular to a gas-solid two-phase binary diversion mixing balance adjusting device.
Background
The thermal power plant needs to burn coal to generate electricity, the coal needs to be crushed before the coal is supplied to a boiler of the power plant, and then the crushed mixture of the coal dust and air is introduced into the boiler to burn. The imbalance of coal dust and air introduced into the boiler in the existing equipment easily causes more potential safety hazards such as large smoke temperature deviation and steam temperature deviation at the outlet of a hearth, large pipe wall deviation and the like.
At present, research on equipment for equalizing and regulating coal dust is started in China by the same party, for example, the authorized bulletin number is: CN 104864403B, named as a pulverized coal balance adjusting device for a boiler, is only aimed at adjusting the balance of pulverized coal, and does not provide a corresponding device for balancing the co-mixing of pulverized coal and air.
Therefore, in order to solve the above technical problems, a new technical solution is needed to solve the technical problem of mixing equalization of pulverized coal and air. In particular to a gas-solid two-phase binary diversion mixing balance adjusting device.
Disclosure of Invention
The utility model provides a gas-solid two-phase diversion mixing balance adjusting device for solving the technical problem of unbalanced pulverized coal and air quantity provided in the existing boiler coal supply device in the market.
The technical scheme is as follows for realizing the purpose: a gas-solid two-phase bipartite diversion mixing balance adjusting device is characterized in that: comprises a diffusion section, a powder quantity adjusting section and an air quantity adjusting section which are sequentially arranged;
the diffusion section comprises a powder inlet pipe, the left side and the right side of a powder inlet of the powder inlet pipe are respectively communicated with a first powder inlet pipe and a second powder inlet pipe, and the first powder inlet pipe and the second powder inlet pipe are respectively communicated with the powder amount regulating section;
the powder amount adjusting section is arranged in a circular ring shape and comprises a mixing part and an adjusting part, wherein a coal powder adjusting rod is arranged on the mixing part, and a coal powder guide plate is arranged on the coal powder adjusting rod;
the air quantity adjusting section comprises a powder outlet pipe, the powder outlet pipe is connected with an adjusting part of the powder quantity adjusting section, the powder outlet pipe comprises a powder outlet pipe inlet, the powder outlet pipe inlet is periodically shielded when the pulverized coal guide plate rotates, an air quantity adjusting rod is rotatably arranged on the powder outlet pipe, and an air quantity adjusting plate is arranged on the air quantity adjusting rod.
Preferably, the mixing part and the adjusting part of the powder amount adjusting section are uniformly distributed at intervals, the first powder inlet pipe and the second powder inlet pipe are respectively communicated with the mixing part, and the inlet of the powder outlet pipe is communicated with the adjusting part.
Preferably, each group of the pulverized coal adjusting rods comprises a first pulverized coal adjusting rod and a second pulverized coal adjusting rod, each group of the pulverized coal guide plates comprises a first pulverized coal guide plate and a second pulverized coal guide plate, the first pulverized coal adjusting rods are provided with the first pulverized coal guide plates, the second pulverized coal adjusting rods are provided with the second pulverized coal guide plates, and the left side and the right side of the inlet of the powder outlet pipe are periodically shielded when the first pulverized coal guide plates and the second pulverized coal guide plates rotate.
Preferably, the first coal dust adjusting rod and the second coal dust adjusting rod are respectively arranged on the mixing part.
Preferably, two sides of the powder amount adjusting section are respectively provided with a plurality of groups of powder inlet pipes and powder outlet pipes, and the quantity of the powder inlet pipes is consistent with that of the powder outlet pipes.
Preferably, the number relationship among the powder outlet pipes, the mixing parts and the pulverized coal adjusting rods is that when the number of the powder outlet pipes is n, the number of the mixing parts is n, the pulverized coal adjusting rods are n groups, and the pulverized coal adjusting rods of each group are annularly distributed at intervals of 360/n angles along the circle center of the powder amount adjusting section.
Preferably, the powder inlet pipe and the powder outlet pipe are provided with 6 groups.
Preferably, the air volume adjusting rod comprises a first air volume adjusting rod and a second air volume adjusting rod, the first air volume adjusting rod is provided with a first air volume adjusting plate, and the second air volume adjusting rod is provided with a second air volume adjusting plate.
The utility model has the beneficial effects that:
according to the utility model, the mixture of the supplied air and the pulverized coal is dispersed in the mixing part of the powder quantity adjusting section through the diffusion section, so that the air and the pulverized coal provided by the outside are fully mixed in the mixing part, the original flow direction is changed, namely, turbulence is carried out in the mixing part, the opening size of the inlet of the powder outlet pipe is controlled through the pulverized coal guide plate, the mixed and disturbed air pulverized coal mixture is discharged outwards from the inlet of the powder outlet pipe, the powder outlet pipe is also provided with the air quantity adjusting plate, and the resistance size of the opening of the powder outlet pipe is controlled through rotating the air quantity adjusting plate, so that the flow speed of the air is adjusted. The mixture throughput of the coal powder and the air is regulated and controlled through the coal powder guide plate, and the air quantity is regulated through the air quantity regulating plate, so that the balance of the coal powder and the air quantity of the coal powder outlet is controlled.
The pulverized coal guide plates are uniformly distributed on the powder amount adjusting section at intervals, each group of pulverized coal guide plates comprises two guide plates, and the opening size of the inlet of the powder outlet pipe is jointly controlled through the two guide plates, so that the throughput of the mixture of pulverized coal and air is conveniently and accurately controlled.
Drawings
Fig. 1 is a schematic overall perspective view of the present utility model.
Fig. 2 is a schematic structural view of an air quantity adjusting section of the present utility model.
Fig. 3 is a schematic view of the diffuser structure of the present utility model.
Fig. 4 is a schematic overall elevational view of the present utility model.
Fig. 5 is a schematic cross-sectional view of fig. 4 at C-C.
Fig. 6 is a schematic view of the internal cross-sectional structure of the present utility model.
Wherein:
1-a diffusion section; 11-a first powder inlet pipe; 12-a powder inlet; 13-a separator; 14-a second powder inlet pipe; 2-a powder amount adjusting section; 21-a mixing section; 22-a first coal dust adjusting rod; 23-a second coal dust adjusting rod; 24-an adjusting part; 25-a first coal dust guide plate; 26-a second coal dust guide plate; 3-an air quantity adjusting section; 31-a first air quantity adjusting rod; 32-a second air quantity adjusting rod; 33, a powder outlet; 331-a branch pipe inlet; 34-a first air quantity adjusting plate; 35-a second air quantity adjusting plate.
Description of the embodiments
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, as the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used for convenience in describing the present utility model and simplifying the description based on the azimuth or positional relationship shown in the drawings, it should not be construed as limiting the present utility model, but rather should indicate or imply that the devices or elements referred to must have a specific azimuth, be constructed and operated in a specific azimuth. Furthermore, the terms "first," "second," "third," and the like, as used herein, are used for descriptive purposes only and are not to be construed as indicating or implying any relative importance.
In the description of the present utility model, it should be noted that unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 3, a gas-solid two-phase bi-component diversion mixing balance adjusting device comprises a diffusion section 1, a powder amount adjusting section 2 and a wind amount adjusting section 3 which are sequentially arranged. The outside of the diffusion section is annular, the inside of the diffusion section is hollow, the diffusion section and the air volume adjusting section are respectively arranged on two sides of the powder volume adjusting section, and the diffusion section and the air volume adjusting section are respectively distributed in an annular mode along the circumferential direction of the powder volume adjusting section and are communicated with the inside of the powder volume adjusting section. The diffusion section is an inlet end of air and pulverized coal, and the air and the pulverized coal are mixed in the powder quantity adjusting section and then discharged through the air quantity adjusting section.
As shown in fig. 3, the diffusion section 1 comprises a powder inlet pipe, a partition plate 13 is arranged in the middle of a powder inlet 12 of the powder inlet pipe, a first powder inlet pipe 11 and a second powder inlet pipe 14 are respectively communicated with the left side and the right side of the partition plate, the first powder inlet pipe 11 and the second powder inlet pipe 14 are respectively communicated with the powder amount adjusting section 2, and the first powder inlet pipe 11 and the second powder inlet pipe 14 are connected with a mixing part 21 of the powder amount adjusting section. The mixture of air and coal dust enters through two channels at the powder inlet pipe, and is diffused to the mixing part of the powder amount adjusting section through the first powder inlet pipe 11 and the second powder inlet pipe 14 respectively. The first powder inlet pipe 11 and the second powder inlet pipe 14 are arranged in a splayed shape and are communicated with the mixing part of the powder amount adjusting section. When the mixture of air and coal powder enters the powder quantity regulating section from the first powder inlet pipe, the flowing direction of the mixture flows around the annular direction of the powder quantity regulating section or flows out from the inlet of the powder outlet pipe. When the mixture of air and coal dust enters the same from the second powder inlet pipe, but the flow direction in the powder quantity adjusting section is opposite to the flow direction of the first powder inlet pipe, the arrangement ensures that when the first powder inlet pipe and the second powder inlet pipe simultaneously feed the mixture of air and coal dust, the mixture of air and coal dust is disturbed and mixed in the powder quantity adjusting section, so that the mixture of air and coal dust entering from the powder inlet pipe is prevented from being directly discharged from the outlet end.
As shown in fig. 4 and 5, the powder amount adjusting section 2 is in a ring shape, the powder amount adjusting section 2 includes a mixing portion 21 and an adjusting portion 24, a coal powder adjusting rod is disposed on the mixing portion 21, and a coal powder guide plate is disposed on the coal powder adjusting rod. The mixing part 21 and the adjusting part 24 of the powder amount adjusting section 2 are uniformly and alternately arranged, the first powder inlet pipe 11 and the second powder inlet pipe 14 are respectively communicated with the mixing part 21, and the powder outlet pipe inlet 331 of the powder outlet pipe is communicated with the adjusting part 24.
The two sides of the powder amount adjusting section 2 are respectively provided with a plurality of groups of powder inlet pipes and powder outlet pipes, and the quantity of the powder inlet pipes is consistent with that of the powder outlet pipes. The number relation of the powder outlet pipes, the mixing parts 21 and the pulverized coal adjusting rods is that when the number of the powder outlet pipes is n, the number of the mixing parts 21 is n, the pulverized coal adjusting rods are n groups, and the pulverized coal adjusting rods of each group are annularly distributed at intervals of 360/n angles along the circle center of the powder amount adjusting section. In this embodiment, six groups of powder inlet pipes and powder outlet pipes are preferable, wherein each group of powder inlet pipes comprises a first powder inlet pipe and a second powder inlet pipe. The corresponding powder amount adjusting section also comprises six groups of mixing parts and adjusting parts, each group of powder inlet pipes are communicated with the mixing parts, and the powder outlet of each group of powder outlet pipes is arranged on the adjusting part. Each group of pulverized coal guide plates are arranged on the mixing part.
The air quantity adjusting section 3 comprises a powder outlet pipe, the powder outlet pipe is connected with the adjusting part of the powder quantity adjusting section 2, the powder outlet pipe comprises a powder outlet pipe inlet 331, the pulverized coal guide plate periodically shields the outside of the powder outlet pipe inlet 331 during rotation, an air quantity adjusting rod is rotatably arranged on the powder outlet pipe, and an air quantity adjusting plate is arranged on the air quantity adjusting rod.
As shown in fig. 5, a first pulverized coal adjustment lever 22 and a second pulverized coal adjustment lever 23 are provided on the mixing section 21, respectively. Each group of the pulverized coal adjusting rods comprises a first pulverized coal adjusting rod 22 and a second pulverized coal adjusting rod 23, each group of the pulverized coal guide plates comprises a first pulverized coal guide plate 25 and a second pulverized coal guide plate 26, the first pulverized coal adjusting rods 22 are provided with the first pulverized coal guide plates 25, the second pulverized coal adjusting rods 23 are provided with the second pulverized coal guide plates 26, and the left side and the right side of the inlet 331 of the powder outlet pipe are periodically shielded when the first pulverized coal guide plates 25 and the second pulverized coal guide plates 26 rotate.
As shown in fig. 5 and 6, the amount of pulverized coal is adjusted by rotating the first pulverized coal adjusting lever 22 and the second pulverized coal adjusting lever 23, thereby controlling the areas of the first pulverized coal deflector 25 and the second pulverized coal deflector 26 that are shielded on the inlet 331 of the discharge pipe, and thus controlling the dosage of the mixture of pulverized coal and air passing through the inlet of the discharge pipe.
As shown in fig. 2 and 6, the air volume adjusting lever includes a first air volume adjusting lever 31 and a second air volume adjusting lever 32, the first air volume adjusting lever 31 is provided with a first air volume adjusting plate 34, and the second air volume adjusting lever 32 is provided with a second air volume adjusting plate 35. When the air flow control device is used, the first air flow regulating rod and the second air flow regulating rod are rotated, so that the unfolding area of the first air flow regulating plate and the second air flow regulating plate in the powder outlet 33 is controlled, the resistance born by the mixture of air and coal dust at the powder outlet is controlled, and the air flow at the outlet is regulated.
The utility model divides the mixture of air and coal powder through the diffusion section and performs turbulent flow mixing in the powder amount adjusting section, controls the opening size at the inlet of the powder outlet pipe by controlling the rotation of the coal powder adjusting rod, and then finely adjusts the flowing amount of the powder outlet of the single powder outlet pipe by the air quantity adjusting rod so as to control the discharge amount of the air coal powder mixture of each powder outlet pipe.
When the primary adjustment is performed, the discharge amount of the air pulverized coal mixture discharged by each powder outlet pipe is detected by the detection device, then the rotation positions of the first guide plate and the second guide plate are controlled by manually adjusting the first pulverized coal adjusting rod and the second pulverized coal adjusting rod according to the detection result of the detection device, meanwhile, the flow resistance of the powder outlet pipes is finely adjusted by the air quantity adjusting rod, and the discharge amount of the adjusted pulverized coal mixture is detected by the detection device again. And finally, adjusting the outlet quantity of each powder outlet pipe.
The above embodiments are only for illustrating the present utility model, not for limiting the present utility model, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present utility model, and therefore, all equivalent technical solutions are also within the scope of the present utility model, and the scope of the present utility model is defined by the claims.
Claims (8)
1. A gas-solid two-phase bipartite diversion mixing balance adjusting device is characterized in that: comprises a diffusion section (1), a powder quantity adjusting section (2) and a wind quantity adjusting section (3) which are sequentially arranged;
the diffusion section (1) comprises a powder inlet pipe, a first powder inlet pipe (11) and a second powder inlet pipe (14) are respectively communicated with the left side and the right side of a powder inlet port (12) of the powder inlet pipe, and the first powder inlet pipe (11) and the second powder inlet pipe (14) are respectively communicated with the powder amount regulating section (2);
the powder amount adjusting section (2) is arranged in a circular ring shape, the powder amount adjusting section (2) comprises a mixing part (21) and an adjusting part (24), a coal powder adjusting rod is arranged on the mixing part (21), and a coal powder guide plate is arranged on the coal powder adjusting rod;
the air quantity adjusting section (3) comprises a powder outlet pipe, the powder outlet pipe is connected with an adjusting part of the powder quantity adjusting section (2), the powder outlet pipe comprises a powder outlet pipe inlet (331), the pulverized coal guide plate periodically shields the outside of the powder outlet pipe inlet (331) when rotating, an air quantity adjusting rod is rotationally arranged on the powder outlet pipe, and an air quantity adjusting plate is arranged on the air quantity adjusting rod.
2. The gas-solid two-phase diversion mixing balance adjusting device according to claim 1, wherein: mixing part (21) and adjusting part (24) of powder volume adjusting section (2) evenly spaced apart setting, first advance powder pipe (11) and second advance powder pipe (14) respectively with mixing part (21) intercommunication, go out powder pipe's play powder pipe entry (331) with adjusting part (24) intercommunication.
3. The gas-solid two-phase diversion mixing balance adjusting device according to claim 2, wherein: each group of coal dust adjusting rods comprises a first coal dust adjusting rod (22) and a second coal dust adjusting rod (23), each group of coal dust guiding plates comprises a first coal dust guiding plate (25) and a second coal dust guiding plate (26), the first coal dust adjusting rods (22) are provided with the first coal dust guiding plates (25), the second coal dust adjusting rods (23) are provided with the second coal dust guiding plates (26), and the first coal dust guiding plates (25) and the second coal dust guiding plates (26) are periodically shielded at the left side and the right side of the inlet (331) of the powder outlet pipe during rotation.
4. The gas-solid two-phase diversion mixing balance adjusting device according to claim 3, wherein: the first coal dust adjusting rod (22) and the second coal dust adjusting rod (23) are respectively arranged on the mixing part (21).
5. The gas-solid two-phase binary flow guide mixing balance adjusting device according to any one of claims 1 to 4, wherein: the two sides of the powder amount adjusting section (2) are respectively provided with a plurality of groups of powder inlet pipes and powder outlet pipes, and the quantity of the powder inlet pipes is consistent with that of the powder outlet pipes.
6. The gas-solid two-phase diversion mixing balance adjustment device according to claim 5, wherein: the number relation of the powder outlet pipes, the mixing parts (21) and the pulverized coal adjusting rods is that when the number of the powder outlet pipes is n, the number of the mixing parts (21) is n, the pulverized coal adjusting rods are n groups, and the pulverized coal adjusting rods of each group are annularly distributed at intervals of 360/n angles along the circle center of the powder quantity adjusting section.
7. The gas-solid two-phase diversion mixing balance adjusting device according to claim 6, wherein: the powder inlet pipe and the powder outlet pipe are provided with 6 groups.
8. The gas-solid two-phase diversion mixing balance adjusting device according to claim 1, wherein: the air volume adjusting rod comprises a first air volume adjusting rod (31) and a second air volume adjusting rod (32), a first air volume adjusting plate (34) is arranged on the first air volume adjusting rod (31), and a second air volume adjusting plate (35) is arranged on the second air volume adjusting rod (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528089.3U CN219674287U (en) | 2023-03-17 | 2023-03-17 | Gas-solid two-phase bipartite diversion mixing balance adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320528089.3U CN219674287U (en) | 2023-03-17 | 2023-03-17 | Gas-solid two-phase bipartite diversion mixing balance adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219674287U true CN219674287U (en) | 2023-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320528089.3U Active CN219674287U (en) | 2023-03-17 | 2023-03-17 | Gas-solid two-phase bipartite diversion mixing balance adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219674287U (en) |
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2023
- 2023-03-17 CN CN202320528089.3U patent/CN219674287U/en active Active
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