CN214891144U - Bed material adding device of circulating fluidized bed - Google Patents
Bed material adding device of circulating fluidized bed Download PDFInfo
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- CN214891144U CN214891144U CN202121434982.7U CN202121434982U CN214891144U CN 214891144 U CN214891144 U CN 214891144U CN 202121434982 U CN202121434982 U CN 202121434982U CN 214891144 U CN214891144 U CN 214891144U
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- venturi
- bed material
- circulating fluidized
- fluidized bed
- compressed air
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Abstract
The utility model provides a circulating fluidized bed material adds device, includes venturi and power device, power device provides power for venturi, be equipped with the pan feeding mouth on the venturi, the pan feeding mouth supplies bed material to get into venturi, venturi will absorb and carry through the bed material that the pan feeding mouth got into under power device's the power effect. The utility model discloses simple structure reduces intensity of labour and the cost of labor of artifical interpolation bed material by a wide margin, and pollution abatement reduces the risk of machinery and electrical injury, reduces the quality requirement to operating personnel.
Description
Technical Field
The utility model relates to a pneumatic conveying material field, especially a circulating fluidized bed material adds device.
Background
Circulating fluidized bed material addition is a common practice for circulating fluidized bed boilers. The addition of bed material is usually done manually or mechanically. The manual bed material adding needs to convey the sorted bed materials to a boiler manhole platform manually or through hoisting equipment, and the bed materials are added into the circulating fluidized bed boiler manually. The manual addition of bed materials is time-consuming and labor-consuming, the efficiency is low, and the environment pollution is large. The mechanical device generally adopts an auger or a belt to convey the sorted bed materials into the boiler, the mechanical device needs enough equipment installation space, a power supply and a control system need to be configured, the system is complex, and needs higher quality personnel to operate, and meanwhile, the equipment purchase cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a circulating fluidized bed material interpolation device, simple structure reduces intensity of labour and the cost of labor that the manual work added the bed material by a wide margin, and pollution abatement reduces the risk of machinery and electrical injury, reduces the quality requirement to operating personnel.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a circulating fluidized bed material adds device, includes venturi and power device, power device provides power for venturi, be equipped with the pan feeding mouth on the venturi, the pan feeding mouth supplies bed material to get into venturi, venturi will absorb and carry through the bed material that the pan feeding mouth got into under power device's the power effect.
Further, the power device is a compressed air spray pipe.
Further, the compressed air spray pipe is arranged in the Venturi pipe.
Further, the compressed air nozzle is concentric with the venturi.
Furthermore, a valve for controlling the switch of the compressed air is arranged on the compressed air spray pipe.
Further, the pan feeding mouth is equipped with the hopper, the hopper is used for storing bed material.
Further, a screen is arranged above the hopper, and the screen is used for setting sorting bed materials according to the particle size requirement.
Furthermore, the diffusion end of the Venturi tube is connected with a steel wire mesh rubber tube, and the outlet end of the steel wire mesh rubber tube is connected with the inlet hole of the circulating fluidized bed boiler.
Furthermore, supporting legs are arranged at the bottoms of the Venturi tube and the power device and used for keeping the ground clearance.
The utility model has the advantages that:
the structure is simple, no rotating or moving mechanism is provided, and the operation is safe; the labor intensity of manual adding of bed materials can be greatly reduced, the labor cost caused by manual adding of the bed materials is greatly reduced, the working efficiency of adding the bed materials is improved, and dust and pollution caused by sprinkling of the manual adding of the bed materials are reduced; or the risk of mechanical and electrical injury possibly caused by adding bed materials by machinery is reduced, the quality requirement on operators is reduced, the equipment purchase cost is saved, and the field installation space is saved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a screen construction;
FIG. 3 is a three-view illustration of the hopper;
FIG. 4 is a view of the venturi structure;
fig. 5 is a view showing the structure of the compressed air nozzle.
In the figure, 1-screen mesh, 2-hopper, 3-venturi tube, 4-compressed air nozzle, 5-valve, 6-concentricity maintaining reinforcing rib, 7-steel wire mesh rubber tube, 8-high pressure rubber tube, 9-supporting leg, 10-hoop, 11-circulating fluidized bed boiler inlet hole and 21-hoop groove.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
The first embodiment is as follows:
as shown in fig. 1-5, a circulating fluidized bed material adds device, including venturi 3 and power device, power device provides power for venturi 3, be equipped with the pan feeding mouth on the venturi 3, the pan feeding mouth supplies bed material to get into venturi 3, venturi 3 will absorb and carry through the bed material that the pan feeding mouth got into under power device's the power effect.
Preferably, the power device is a compressed air nozzle 4.
Preferably, said compressed air nozzle 4 is arranged inside the venturi tube 3.
Preferably, the compressed air nozzle 4 is concentric with the venturi tube 3.
The compressed air nozzle 4 penetrates through the negative pressure end plate of the Venturi tube 3 and is fixed in the center of the Venturi tube 3.
A concentricity maintaining reinforcing rib 6 is arranged in the venturi tube 3, and the concentricity maintaining reinforcing rib 6 is used for maintaining the concentricity of the venturi tube 3 and the spray pipe.
The compressed air nozzle 4 is in the same plane with the throat of the venturi tube 3.
Preferably, a valve 5 for controlling the on-off of the compressed air is arranged on the compressed air spray pipe 4.
The air inlet end of the compressed air nozzle 4 is connected with compressed air through a high-pressure rubber pipe 8.
One end of the compressed air spray pipe 4 connected with the high-pressure rubber pipe 8 is provided with a clamp groove 21, so that the compressed air spray pipe 4 is conveniently connected with the high-pressure rubber pipe 8.
Preferably, the feeding port is provided with a hopper 2, and the hopper 2 is used for storing bed materials.
The negative pressure section of the Venturi tube 3 is cut to form a feeding opening, and the feeding opening is welded with the hopper 2.
The venturi tube 3 is welded at the center of the lower end plate of the hopper 2.
Preferably, a screen mesh 1 is arranged above the hopper 2, and the screen mesh 1 is used for setting sorting bed materials according to the requirement of particle size.
The screen mesh 1 is connected with the feed inlet of the hopper 2. The screen 1 is fixed on the hopper 2. The hopper 2 is made of steel plates by welding.
The bed materials of the circulating fluidized bed are added into the screen mesh 1 manually or mechanically, the bed materials with unqualified large particles are sorted out, and the bed materials with qualified particle size enter the hopper 2.
Preferably, the diffusion end of the venturi tube 3 is connected with a steel wire mesh rubber tube 7, and the outlet end of the steel wire mesh rubber tube 7 is connected with a circulating fluidized bed boiler inlet hole 11 at a high position.
The venturi tube 3 is connected with the steel wire mesh rubber tube 7 through a hoop 10. One end of the venturi tube 3 connected with the steel wire mesh rubber tube 7 is provided with a clamp groove 21, so that the venturi tube 3 is conveniently connected with the steel wire mesh rubber tube 7.
The steel wire mesh rubber pipe 7 is used for conveying bed materials.
The central opening of the end plate of the Venturi tube 3 is punched by a drilling machine, and the center is aligned with the diffuser tube.
Preferably, the venturi tube 3 and the bottom of the power device are provided with legs 9, and the legs 9 are used for keeping the ground clearance.
And a valve 5 is opened, the compressed air generates negative pressure at the throat part of the Venturi tube 3 through the compressed air spray pipe 4 to suck the bed materials into the throat part and form positive pressure at the diffusion section to send the bed materials to the high circulating fluidized bed boiler inlet hole 11.
The compressed air nozzle 4 is connected with compressed air through a valve 5 and a high-pressure rubber hose 8, and the outlet end of the steel wire mesh rubber hose 7 is connected with a circulating fluidized bed boiler inlet hole 11 at a high position. The bed materials of the circulating fluidized bed are added into the screen mesh 1 manually or mechanically (such as a loader), the bed materials with unqualified large particles are sorted out, and the bed materials with qualified particle sizes enter the hopper 2. And a valve 5 of a compressed air spray pipe 4 is opened, the compressed air generates negative pressure at the throat part of the Venturi pipe 3 through the compressed air spray pipe 4 to suck the bed materials into the throat part and form positive pressure at a diffusion section to convey the bed materials to a circulating fluidized bed boiler inlet hole 11 at a high position.
The bed material is sorted by screen 1 and conveyed by the power provided by compressed air to the elevated circulating fluidized bed boiler inlet 11. The structure is simple, no rotating or moving mechanism is provided, and the operation is safe; the labor intensity of manual adding of bed materials can be greatly reduced, the labor cost caused by manual adding of the bed materials is greatly reduced, the working efficiency of adding the bed materials is improved, and dust and pollution caused by sprinkling of the manual adding of the bed materials are reduced; or the risk of mechanical and electrical injury possibly caused by adding bed materials by machinery is reduced, the quality requirement on operators is reduced, the equipment purchase cost is saved, and the field installation space is saved.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (9)
1. A bed material adding device of a circulating fluidized bed is characterized in that: including venturi and power device, power device provides power for venturi, be equipped with the pan feeding mouth on the venturi, the pan feeding mouth supplies bed material to get into venturi, venturi will absorb and carry through the bed material that the pan feeding mouth got into under power device's power.
2. The circulating fluidized bed material adding apparatus according to claim 1, wherein: the power device is a compressed air spray pipe.
3. The circulating fluidized bed material adding apparatus according to claim 2, wherein: the compressed air spray pipe is arranged in the Venturi tube.
4. A circulating fluidized bed material adding apparatus according to claim 3, wherein: the compressed air nozzle is concentric with the venturi.
5. A circulating fluidized bed material adding apparatus according to any one of claims 2 to 4, wherein: and a valve for controlling the switch of the compressed air is arranged on the compressed air spray pipe.
6. The circulating fluidized bed material adding apparatus according to claim 1, wherein: the pan feeding mouth is equipped with the hopper, the hopper is used for saving bed material.
7. The circulating fluidized bed material adding apparatus according to claim 6, wherein: a screen is arranged above the hopper, and the screen is used for setting sorting bed materials according to the particle size requirement.
8. A circulating fluidized bed material adding apparatus according to claim 1 or 2, characterized in that: the diffusion end of the Venturi tube is connected with a steel wire mesh rubber tube, and the outlet end of the steel wire mesh rubber tube is connected with the inlet hole of the circulating fluidized bed boiler.
9. A circulating fluidized bed material adding apparatus according to claim 1 or 2, characterized in that: and supporting legs are arranged at the bottoms of the Venturi tube and the power device and are used for keeping the ground clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434982.7U CN214891144U (en) | 2021-06-24 | 2021-06-24 | Bed material adding device of circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121434982.7U CN214891144U (en) | 2021-06-24 | 2021-06-24 | Bed material adding device of circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214891144U true CN214891144U (en) | 2021-11-26 |
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ID=78906482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121434982.7U Active CN214891144U (en) | 2021-06-24 | 2021-06-24 | Bed material adding device of circulating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214891144U (en) |
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2021
- 2021-06-24 CN CN202121434982.7U patent/CN214891144U/en active Active
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