CN216480950U - Coal dropping pipe dehumidification fluidizing device - Google Patents
Coal dropping pipe dehumidification fluidizing device Download PDFInfo
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- CN216480950U CN216480950U CN202123018998.2U CN202123018998U CN216480950U CN 216480950 U CN216480950 U CN 216480950U CN 202123018998 U CN202123018998 U CN 202123018998U CN 216480950 U CN216480950 U CN 216480950U
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Abstract
The utility model relates to a coal breakage pipe dehumidification fluidizer. The coal dropping pipe dehumidifying and fluidizing device comprises a flash tank, a heat exchanger, a drying box and a fluidizer; the heat exchanger comprises a shell, wherein an inlet and a heat exchange coil pipe of which the outlet extends out of the shell are arranged in the shell, a first air inlet pipe used for being connected with an external high-pressure air pipeline is arranged at the upper end of the shell, and a first air outlet pipe is arranged at the lower end of the shell; a steam outlet pipe is arranged on the flash tank and is connected with an inlet of the heat exchange coil through a first connecting pipe; the drying box comprises a box body, a pore plate for dividing the interior of the box body into an upper cavity and a lower cavity is arranged in the box body, a drying agent is arranged in the upper cavity, a second air inlet pipe communicated with the upper cavity is arranged at the upper end of the box body, a second air outlet pipe communicated with the lower cavity is arranged at the lower end of the box body, and the second air inlet pipe is connected with the first air outlet pipe through a second connecting pipe. Compared with the prior art, the utility model provides a coal breakage pipe receive the coal quality to influence the problem that causes the jam, effectively improve defeated coal breakage pipe steady operation.
Description
Technical Field
The utility model belongs to the technical field of the sediment jar, concretely relates to coal breakage pipe dehumidification fluidizer.
Background
The transfer of the coal as fired is generally accomplished through a coal drop tube between the coal feeder and the fluidized bed boiler inlet. Due to the combustion characteristics of the fluidized bed boiler, the coal as fired is generally low-grade coal with a low heat value, even coal gangue containing partial argillaceous substances, and the humidity is generally high. When the water content is more than 10%, the fluidity of the coal as fired is reduced, the viscosity is increased, when the coal reaches the fire entrance under the action of gravity, the raw coal is quickly evaporated to dryness at the fire entrance pipeline opening and is bonded on the pipe wall under the action of high-temperature coal particles and flue gas in the boiler, and the blockage is gradually formed along with the increase of the coal amount entering the boiler. Once the coal blockage fault occurs, the coal blockage fault is difficult to dredge, and great potential safety hazard is generated on the whole unit.
The traditional anti-blocking method is as follows: 1. laying special materials on the inner side of the coal dropping pipe to reduce the friction coefficient of the inner surface, but the cost is too high, the replacement is difficult, and the flow cross section of the pipeline is reduced; 2. the blockage is blown through by using an air cannon, but large-area blowing cannot be realized, and the blockage is intermittently blown by using the air cannon, so that the negative pressure fluctuation of a hearth and unstable combustion can be caused; 3. the vibrator is adopted to vibrate the blocked part, but the damage to the coal dropping pipe is large, and the effect on the coal with large viscosity is common.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a coal breakage pipe dehumidification fluidizer to solve current coal breakage pipe and use traditional method to prevent stifled poor technical problem of effect.
The utility model discloses a coal breakage pipe dehumidification fluidizing device's technical scheme is:
a coal dropping pipe dehumidification fluidizing device comprises a flash tank, a heat exchanger, a drying box and a fluidizer;
the heat exchanger comprises a shell, wherein an inlet and a heat exchange coil pipe of which the outlet extends out of the outer side of the shell are arranged in the shell, a first air inlet pipe for connecting with an external high-pressure air pipeline is arranged at the upper end of the shell, and a first air outlet pipe is arranged at the lower end of the shell;
a steam outlet pipe is arranged on the flash tank and is connected with an inlet of the heat exchange coil pipe through a first connecting pipe;
the drying box comprises a box body, a pore plate for dividing the interior of the box body into an upper cavity and a lower cavity is arranged in the box body, a drying agent is arranged in the upper cavity, a second air inlet pipe communicated with the upper cavity is arranged at the upper end of the box body, a second air outlet pipe communicated with the lower cavity is arranged at the lower end of the box body, and the second air inlet pipe is connected with the first air outlet pipe through a second connecting pipe;
the fluidizer is used for being installed on the inner wall of the coal dropping pipe, and an air inlet of the fluidizer is connected with the second air outlet pipe through a third connecting pipe.
As a further improvement to the above technical scheme, the inlet and the outlet of the heat exchange coil extend out to the same side of the shell, and the inlet of the heat exchange coil is positioned on the upper side of the outlet of the heat exchange coil.
As a further improvement on the technical scheme, a water tank is arranged at the bottom of the heat exchanger, a water outlet pipe is connected to an outlet of the heat exchange coil pipe, the lower end of the water outlet pipe extends into the water tank, a water return pipe is arranged at the bottom of the water tank, a water feeding pipe is arranged on the flash tank, the water return pipe is connected with the water feeding pipe, and a water pump is arranged on the water return pipe.
As a further improvement to the technical scheme, the water return pipe is connected with the water adding pipe through a three-way joint, and the other joint of the three-way joint is connected with an external water pipe.
As a further improvement to the above technical solution, the third connecting pipe is a rubber hose.
As a further improvement to the technical scheme, the water outlet pipe is provided with a stop valve.
The utility model provides a coal breakage pipe dehumidification fluidizer compares in prior art, and its beneficial effect lies in:
the utility model discloses a when coal breakage pipe dehumidification fluidizer used, the flash tank would add the water flash fast to the flash tank and be vapor. The water vapor flows into the first connecting pipe through the steam outlet pipe, and the water vapor in the first connecting pipe enters the heat exchange coil in the heat exchanger. External high-pressure air enters the heat exchanger through the second air inlet pipe, and heat exchange is performed through the high-temperature heat exchange pipe, high-temperature high-pressure air is formed after the low-temperature high-pressure air exchanges heat with the high-temperature heat exchange coil, the high-temperature high-pressure air passes through the second air outlet pipe, the second connecting pipe enters the drying box, the high-temperature high-pressure air enters the fluidizer through the third connecting pipe after being dried by the drying agent, the high-temperature high-pressure air blows off coal adhered to the inner wall of the coal breakage pipe, the humidity of the coal is reduced, the mobility of the coal is improved, the coal is prevented from being adhered to the coal breakage pipe, and the coal blockage of the coal breakage pipe is avoided. Compared with the prior art, the utility model discloses a coal breakage pipe dehumidification fluidizer has solved the problem that the coal breakage pipe caused the jam by the influence of coal quality, effectively improves defeated coal breakage pipe steady operation.
The utility model discloses an among the coal breakage pipe dehumidification fluidizing device, set up the outlet pipe through the export at heat exchange coil, steam condensate water in the heat exchange coil after the heat transfer to the water tank in, the water pump in with the water tank water pump income to the flash tank, realized water cyclic utilization.
Drawings
FIG. 1 is a schematic structural view of a coal dropping pipe dehumidifying and fluidizing device of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
in the figure: 1. a flash tank; 2. a vapor outlet pipe; 3. a water feeding pipe; 4. a three-way joint; 5. a first connecting pipe; 6. a housing; 7. a heat exchange coil; 8. a first intake pipe; 9. a first air outlet pipe; 10. a second connecting pipe; 11. a water outlet pipe; 12. a stop valve; 13. a water tank; 14. a water return pipe; 15. a water pump; 16. a box body; 17. an orifice plate; 18. a desiccant; 19. a second air outlet pipe; 20. a third connecting pipe; 21. a fluidizer; 22. a coal dropping pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:
the utility model discloses a coal breakage pipe dehumidification fluidizing device's embodiment, as shown in fig. 1, fig. 2, fig. 3, including flash tank 1, heat exchanger, drying cabinet and fluidizer 21.
In this embodiment, the heat exchanger includes casing 6, installs heat exchange coil 7 in the casing 6, and heat exchange coil 7's import and export all stretch out to the outside of casing 6, and heat exchange coil 7's import and export stretch out to same one side of casing 6. The first intake pipe 8 of upper end fixedly connected with of casing 6, first intake pipe 8 is vertical arranges, and the lower extreme of first intake pipe 8 stretches into to inside casing 6, and the upper end of first intake pipe 8 is used for being connected with external high-pressure air pipeline, the first outlet duct 9 of the lower extreme fixedly connected with of casing 6, and first outlet duct 9 is vertical arranges, and the upper end of first outlet duct 9 stretches into to inside casing 6.
In this embodiment, flash tank 1 is located one side of heat exchanger, and flash tank 1 has steam outlet pipe 2 on being close to the side of heat exchanger, and steam outlet pipe 2 passes through the access connection of first connecting pipe 5 with heat transfer coil 7. It should be noted that the flash tank 1 in the present embodiment has the same structure as the flash tank 1 in the prior art, and the specific structure of the flash tank 1 will not be described here.
In this embodiment, the drying cabinet is located the heat exchanger and keeps away from one side of flash tank 1, and the drying cabinet includes box 16, and fixedly connected with will in the box 16 inside divide into the orifice plate 17 of cavity and lower cavity, orifice plate 17 horizontal arrangement, the lateral surface of orifice plate 17 and 16 inner walls welded fastening of box. A drying agent 18 is arranged in the upper cavity, the upper end of the box body 16 is fixedly connected with a second air inlet pipe communicated with the upper cavity, the lower end of the box body 16 is provided with a second air outlet pipe 19 communicated with the lower cavity, and the second air inlet pipe is connected with a first air outlet pipe 9 at the lower end of the heat exchanger through a second connecting pipe 10;
in this embodiment, the fluidizer 21 is installed on the inner wall of the coal dropping pipe 22, and the air inlet of the fluidizer 21 is connected with the second air outlet pipe 19 through a third connecting pipe 20.
In this embodiment, a water tank 13 is arranged on the lower side of the heat exchanger, a water outlet pipe 11 is connected to an outlet of the heat exchange coil 7, the lower end of the water outlet pipe 11 extends into the water tank 13, a water return pipe 14 is fixedly connected to the bottom of the water tank 13, a water feeding pipe 3 is arranged on the flash tank 1, the water return pipe 14 is connected to the water feeding pipe 3, and a water pump 15 is installed on the water return pipe 14.
In this embodiment, the water return pipe 14 is connected to the water feeding pipe 3 through a three-way joint 4, another joint of the three-way joint 4 is connected to an external water pipe, the third connecting pipe 20 is a rubber hose, and the water outlet pipe 11 is provided with a stop valve 12.
The utility model provides a coal breakage pipe dehumidification fluidizing device has following advantage:
the utility model discloses a when coal breakage pipe dehumidification fluidizing device used, flash tank 1 will add the water flash distillation fast to in flash tank 1 and be vapor. The water vapor flows into the first connecting pipe 5 through the steam outlet pipe 2, and the water vapor in the first connecting pipe 5 enters the heat exchange coil 7 in the heat exchanger. Outside high-pressure air enters the heat exchanger through the second air inlet pipe, and in the heat exchange tube heat transfer of high temperature, form high-temperature high-pressure air after microthermal high-pressure air exchanges heat with high temperature heat exchange coil 7, high-temperature high-pressure air passes through second outlet duct 19, second connecting pipe 10 enters into to the drying cabinet, high-temperature high-pressure air passes through third connecting pipe 20 and gets into to fluidizer 21 in after 18 drying agent, high-temperature high-pressure air will glue the coal blow off on the coal breakage pipe inner wall, and the humidity of coal has been reduced, the mobility of coal has been improved, the coal has been avoided bonding on the coal breakage pipe, thereby the coal jam coal breakage pipe has been avoided. Compared with the prior art, the utility model discloses a coal breakage pipe dehumidification fluidizer has solved the problem that the coal breakage pipe caused the jam by the influence of coal quality, effectively improves defeated coal breakage pipe steady operation.
The utility model discloses an among the coal breakage pipe dehumidification fluidizing device, set up outlet pipe 11 through the export at heat exchange coil 7, the steam condensate in the heat exchange coil 7 after the heat transfer becomes water to flow into to water tank 13 in, water pump 15 is with water pump 15 in the water tank 13 income to flash tank 1 in, has realized water cyclic utilization.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A coal dropping pipe dehumidification fluidizing device is characterized by comprising a flash tank, a heat exchanger, a drying box and a fluidizer;
the heat exchanger comprises a shell, wherein an inlet and a heat exchange coil pipe of which the outlet extends out of the outer side of the shell are arranged in the shell, a first air inlet pipe for connecting with an external high-pressure air pipeline is arranged at the upper end of the shell, and a first air outlet pipe is arranged at the lower end of the shell;
a steam outlet pipe is arranged on the flash tank and is connected with an inlet of the heat exchange coil through a first connecting pipe;
the drying box comprises a box body, a pore plate for dividing the interior of the box body into an upper cavity and a lower cavity is arranged in the box body, a drying agent is arranged in the upper cavity, a second air inlet pipe communicated with the upper cavity is arranged at the upper end of the box body, a second air outlet pipe communicated with the lower cavity is arranged at the lower end of the box body, and the second air inlet pipe is connected with the first air outlet pipe through a second connecting pipe;
the fluidization device is used for being installed on the inner wall of the coal dropping pipe, and an air inlet of the fluidization device is connected with the second air outlet pipe through a third connecting pipe.
2. The coal drop tube dehumidifying and fluidizing device according to claim 1, wherein an inlet and an outlet of the heat exchange coil extend to the same side of the housing, and the inlet of the heat exchange coil is located on the upper side of the outlet of the heat exchange coil.
3. The coal drop tube dehumidifying and fluidizing device according to claim 2, wherein a water tank is arranged at the bottom of the heat exchanger, a water outlet pipe is connected to the outlet of the heat exchange coil, the lower end of the water outlet pipe extends into the water tank, a water return pipe is arranged at the bottom of the water tank, a water feeding pipe is arranged on the flash tank, the water return pipe is connected with the water feeding pipe, and a water pump is arranged on the water return pipe.
4. The coal drop dehumidifying and fluidizing device according to claim 3, wherein the water return pipe is connected to the water supply pipe through a three-way joint, and the other joint of the three-way joint is connected to an external water pipe.
5. The coal drop tube dehumidifying and fluidizing device of claim 1 wherein the third connecting tube is a rubber hose.
6. The coal drop tube dehumidifying and fluidizing device according to claim 3, wherein a stop valve is provided on the water outlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123018998.2U CN216480950U (en) | 2021-12-03 | 2021-12-03 | Coal dropping pipe dehumidification fluidizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123018998.2U CN216480950U (en) | 2021-12-03 | 2021-12-03 | Coal dropping pipe dehumidification fluidizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216480950U true CN216480950U (en) | 2022-05-10 |
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ID=81402164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123018998.2U Active CN216480950U (en) | 2021-12-03 | 2021-12-03 | Coal dropping pipe dehumidification fluidizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216480950U (en) |
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2021
- 2021-12-03 CN CN202123018998.2U patent/CN216480950U/en active Active
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