CN214581039U - Slag-flowing-preventing device for boiler - Google Patents
Slag-flowing-preventing device for boiler Download PDFInfo
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- CN214581039U CN214581039U CN202120703202.8U CN202120703202U CN214581039U CN 214581039 U CN214581039 U CN 214581039U CN 202120703202 U CN202120703202 U CN 202120703202U CN 214581039 U CN214581039 U CN 214581039U
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Abstract
The utility model discloses a boiler slag-flow prevention device, the boiler slag-flow prevention device comprises a fixed shell and a rotary table, the rotary table is rotatably connected in the fixed shell, the rotary table comprises a bottom plate, a central tube and a separation baffle, the bottom plate is in a circular plate shape, the outer edge of the bottom plate is rotatably connected with the inner wall of the fixed shell, a central through hole is arranged at the central position of the bottom plate, a fixed tube is fixedly sleeved in the central through hole, a plurality of separation baffles are arranged on the circumference of the outer side of the fixed tube at equal intervals, the bottom end of the separation baffle is fixedly connected with the upper end surface of the bottom plate, one side of the separation baffle, which is close to the fixed tube, is fixedly connected with the fixed tube, and the top end of the fixed tube is connected with a rotating assembly; the slag inlet is formed in the side wall of the fixed shell and communicated with a slag outlet pipeline of the boiler through the slag inlet, the slag outlet is formed in the side wall of the fixed shell and communicated with a slag inlet pipeline of the slag cooler through the slag outlet, and the slag inlet and the slag outlet are both located above the outer edge of the bottom plate.
Description
Technical Field
The utility model relates to an electric power field especially relates to a slag-flow prevention device of boiler.
Background
The temperature of the boiler ash of the circulating fluidized bed in the thermal power plant is up to more than 1000 ℃, the cooling treatment is carried out without cooling equipment, and the cooling or the conveying, the storage and the transportation can not be realized. Therefore, at present, the roller slag cooler is generally adopted to cool the hot slag to a low temperature (generally below 150 ℃), then the hot slag is conveyed to the storage equipment through the conveying equipment, and finally the hot slag is loaded and transported.
At present, a roller slag cooler mostly adopts a direct slag feeding mode, namely, hot slag discharged from a slag discharge port of a boiler passes through an expansion joint, a valve and a pipeline, directly enters a roller under the action of micro-positive pressure of the boiler by utilizing the self gravity and the fluidity of the hot slag, is cooled and then is discharged to conveying equipment, namely, a channel for the hot slag to enter the roller has no measure which can block the flow of the hot slag. The circulating fluidized bed boiler has the advantages that micro-positive pressure (about 10 kPa) is arranged in a hearth, the flowability of hot slag is very good, when the boiler is not stably operated, the granularity of the hot slag is fine or the boiler is fired by explosive fuels such as lignite and the like, the hot slag with the excellent flowability (like molten steel) can easily flow to an outlet of a roller slag cooler or even conveying equipment directly from a slag discharge port of the boiler without cooling under the action of the pressure of the hearth, and the phenomenon is called 'slag flowing'.
The slag flow is an abnormal phenomenon generated by a circulating fluidized bed boiler of a thermal power plant, has no sign before generation, has no rule during generation, cannot be controlled after generation, and is extremely harmful. The slag flowing phenomenon has potential safety hazards, the roller slag cooler, the conveying equipment and the electrical control equipment are damaged, more importantly, the thickness of a material layer of a boiler bed is rapidly reduced due to the outflow of a large amount of hot slag, the bed pressure is influenced, the load of the boiler can be reduced only when the boiler is serious, the generated energy is reduced, the economic benefit of a power plant is reduced, even the boiler has to be shut down, the power plant cannot generate electricity, and the power plant can suffer great loss.
The slag flowing phenomenon is caused in a boiler and is reflected in a roller slag cooler, and power plants and roller slag cooler manufacturers strive to find a method for solving the slag flowing phenomenon for many years, so that the effect is very little. Therefore, there is a need to develop a slag-flowing prevention device to solve the above problems.
Disclosure of Invention
The utility model aims at the above problem, provide a boiler slag-flow prevention device with simple structure and convenient use.
In order to realize the purpose, the technical scheme of the utility model is that:
a boiler slag-flow-preventing device comprises a fixed shell and a rotary disc, wherein the rotary disc is rotatably connected in the fixed shell and comprises a bottom plate, a central pipe and a spacing partition plate, the bottom plate is in a circular plate shape, the outer edge of the bottom plate is rotatably connected with the inner side wall of the fixed shell, the outer edge of the bottom plate is kept in a sealing state with the inner side wall of the fixed shell, a central through hole is formed in the central position of the bottom plate, a fixed pipe is fixedly sleeved in the central through hole, a plurality of spacing partition plates are arranged on the circumference of the outer side of the fixed pipe at equal intervals, the bottom end of each spacing partition plate is fixedly connected with the upper end face of the bottom plate, one side of each spacing partition plate, which is close to the fixed pipe, is fixedly connected with the fixed pipe, and the top end of the fixed pipe is connected with a rotating assembly; the slag inlet is formed in the side wall of the fixed shell and communicated with a slag outlet pipeline of the boiler through the slag inlet, the slag outlet is formed in the side wall of the fixed shell and communicated with a slag inlet pipeline of the slag cooler through the slag outlet, and the slag inlet and the slag outlet are both located above the outer edge of the bottom plate.
Further, the rotating assembly comprises a rotating motor and a hollow pipe, the rotating motor is fixedly connected to the top end of the fixed shell, the rotating motor is connected with the top end of the hollow pipe through a coupler, the bottom end of the hollow pipe penetrates through the end wall of the top end of the fixed shell and then is fixedly connected with the top end of the fixed pipe, and the hollow pipe is communicated with the fixed pipe.
Further, a water cooling assembly is arranged below the rotary table and comprises a liquid storage box body, a water cooling cavity is formed by enclosing the lower end face of the bottom plate and the inner side wall of the fixed shell, cooling liquid is arranged in the water cooling cavity, a liquid outlet hole and a liquid inlet hole are respectively formed in the side face of the water cooling cavity, the liquid outlet hole is communicated with the liquid storage box body through a liquid outlet pipeline, a water pump is arranged in the liquid storage box body, and the water pump is communicated with the liquid inlet hole through a liquid inlet pipeline.
Furthermore, an air cooling assembly is arranged above the rotary table and comprises a fan, the fan is fixedly connected to the inner side wall of the fixed shell, and the air outlet direction of the fan faces the upper end of the rotary table; the top end of the fixed shell is provided with an air outlet and is communicated with one end of an air cooling pipeline through the air outlet, and the other end of the air cooling pipeline is communicated with the water-cooled cavity; and a plurality of air inlet holes are formed in the side wall of the hollow pipe.
Furthermore, the height of one side of the bottom plate close to the central through hole is higher than that of the outer edge of the bottom plate.
Furthermore, the slag inlet pipeline of the slag cooler is arranged in an inclined manner, and the higher end of the slag inlet pipeline of the slag cooler is fixedly connected with the outer side wall of the fixed shell.
Compared with the prior art, the utility model has the advantages and positive effect be:
the utility model discloses carrying out the during operation, the high temperature material that comes out from the boiler slag discharging pipeline gets into in the sediment region that deposits of bottom plate and two adjacent backplate formation from advancing the slag notch, then constantly rotatory through rotating assembly control carousel, the high temperature material in the sediment region removes thereupon, when this sediment region rotation of depositing reaches the slag notch position, the high temperature material in the sediment region then flows to the cold sediment machine from the slag notch and advances the slag pipeline in, thereby realized controlling the velocity of flow of high temperature material, the emergence of flowing slag phenomenon has been avoided, the work security of boiler and transportation equipment has been improved, the phenomenon of blowing out has been avoided appearing simultaneously, the economic benefits of having ensured the power plant is not influenced, the boiler operation of giving the power plant has brought the facility.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of a connection structure of the stationary housing and the turntable.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by a person of ordinary skill in the art without creative efforts shall be included in the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the present embodiment discloses a slag-flow-preventing device for a boiler, which includes a fixed casing 1 and a rotary table, wherein the rotary table is rotatably connected in the fixed casing 1;
the turntable comprises a bottom plate 2, a central pipe 3 and a spacing baffle plate 4, wherein the bottom plate 2 is in a circular plate shape, the outer edge of the bottom plate 2 is rotatably connected with the inner side wall of the fixed shell 1, the outer edge of the bottom plate 2 and the inner side wall of the fixed shell 1 are kept in a sealed state, a central through hole is formed in the center of the bottom plate 2, the height of one side, close to the central through hole, of the bottom plate 2 is higher than that of the outer edge of the bottom plate 2, namely the bottom plate 2 is in a state of high middle and low edge, and high-temperature materials are conveniently discharged from the slag outlet 102; a fixed pipe 3 is fixedly sleeved in the central through hole, a plurality of partition plates 4 are arranged on the periphery of the outer side of the fixed pipe 3 at equal intervals, the bottom ends of the partition plates 4 are fixedly connected with the upper end face of the bottom plate 2, one side of each partition plate 4, which is close to the fixed pipe 3, is fixedly connected with the fixed pipe 3, and the connection positions among the bottom plate 2, the partition plates 4 and the fixed pipe 3 are kept in a sealed state; the top end of the fixed tube 3 is connected with the rotating component;
the rotating assembly comprises a rotating motor 5 and a hollow pipe 6, the rotating motor 5 is fixedly connected to the top end of the fixed shell, the rotating motor 5 is connected with the top end of the hollow pipe 6 through a coupler, the bottom end of the hollow pipe 6 penetrates through the end wall of the top end of the fixed shell and then is fixedly connected with the top end of the fixed pipe 3, and the hollow pipe 6 is communicated with the fixed pipe 3.
A slag inlet 101 is formed in the side wall of the fixed shell 1 and is communicated with a boiler slag outlet pipeline 13 through the slag inlet 101, a slag outlet 102 is formed in the side wall of the fixed shell 1 and is communicated with a slag cooler slag inlet pipeline 8 through the slag outlet 102, the slag cooler slag inlet pipeline 8 is arranged in an inclined manner, and the higher end of the slag cooler slag inlet pipeline 8 is fixedly connected with the outer side wall of the fixed shell 1; the slag inlet 101 and the slag outlet 102 are both positioned above the outer edge of the bottom plate 2.
The carousel below is provided with water-cooling assembly, and water-cooling assembly includes liquid storage tank 10, terminal surface and 1 inside wall of fixed casing enclose constitution water-cooling cavity 103 under 2 of bottom plate, are provided with the coolant liquid in the water-cooling cavity 103, and water-cooling cavity 103 side is provided with out liquid hole 105, feed liquor hole 106 respectively, and it is linked together with liquid storage tank 10 through going out liquid pipeline 9 to go out liquid hole 105, is provided with water pump 11 in the liquid storage tank 10, and water pump 11 is linked together through feed liquor pipeline 12 and feed liquor hole 106.
The water-cooling assembly can make the coolant liquid in the water-cooling cavity contact with the lower end face of the bottom plate, so that the material can be cooled when the high-temperature material is transported by the rotary table, the coolant liquid is circulated through the liquid storage box body, the temperature of the coolant liquid in the water-cooling cavity is reduced, and the cooling effect of the water-cooling assembly on the high-temperature material is improved.
An air cooling assembly is arranged above the rotary table and comprises a fan 7, the fan 7 is fixedly connected to the inner side wall of the fixed shell 1, and the air outlet direction of the fan 7 faces the upper end of the rotary table; the top end of the fixed shell 1 is provided with an air outlet 104 and communicated with one end of an air cooling pipeline 14 through the air outlet 104, and the other end of the air cooling pipeline 14 is communicated with a water cooling cavity 103; the side wall of the hollow pipe 6 is provided with a plurality of air inlet holes 601.
Carry out the operation of blowing to the carousel top through the fan, carry out the heat dissipation operation to high temperature material, the hot-blast cooling that produces is cooled down in getting into the water-cooling cavity through forced air cooling pipeline, then enters into the inside top of fixed casing through fixed pipe, hollow tube, fresh air inlet, has realized cold wind's circulation operation, and its easy operation, convenient and fast have further reduced high temperature material's temperature, have improved the utility model discloses an effect of use.
The utility model discloses carrying out the during operation, the high temperature material that comes out from the boiler slag discharging pipeline gets into in the sediment region that deposits of bottom plate and two adjacent backplate formation from advancing the slag notch, then constantly rotatory through rotating assembly control carousel, the high temperature material in the sediment region removes thereupon, when this sediment region rotation of depositing reaches the slag notch position, the high temperature material in the sediment region then flows to the cold sediment machine from the slag notch and advances the slag pipeline in, thereby realized controlling the velocity of flow of high temperature material, the emergence of flowing slag phenomenon has been avoided, the work security of boiler and transportation equipment has been improved, the phenomenon of blowing out has been avoided appearing simultaneously, the economic benefits of having ensured the power plant is not influenced, the boiler operation of giving the power plant has brought the facility.
Claims (6)
1. The utility model provides a boiler prevents flowing slag device which characterized in that: the boiler slag-flow-preventing device comprises a fixed shell and a rotary disc, the rotary disc is rotatably connected in the fixed shell and comprises a bottom plate, a central pipe and a spacing partition plate, the bottom plate is in a circular plate shape, the outer edge of the bottom plate is rotatably connected with the inner side wall of the fixed shell, the outer edge of the bottom plate is kept in a sealing state with the inner side wall of the fixed shell, a central through hole is formed in the central position of the bottom plate, a fixed pipe is fixedly sleeved in the central through hole, a plurality of spacing partition plates are arranged on the circumference of the outer side of the fixed pipe at equal intervals, the bottom end of each spacing partition plate is fixedly connected with the upper end face of the bottom plate, one side of each spacing partition plate, which is close to the fixed pipe, is fixedly connected with the fixed pipe, and the top end of the fixed pipe is connected with a rotating assembly; the slag inlet is formed in the side wall of the fixed shell and communicated with a slag outlet pipeline of the boiler through the slag inlet, the slag outlet is formed in the side wall of the fixed shell and communicated with a slag inlet pipeline of the slag cooler through the slag outlet, and the slag inlet and the slag outlet are both located above the outer edge of the bottom plate.
2. The boiler slag-flow prevention device of claim 1, wherein: the rotating assembly comprises a rotating motor and a hollow pipe, the rotating motor is fixedly connected to the top end of the fixed shell, the rotating motor is connected with the top end of the hollow pipe through a coupler, the bottom end of the hollow pipe penetrates through the end wall of the top end of the fixed shell and then is fixedly connected with the top end of the fixed pipe, and the hollow pipe is communicated with the fixed pipe.
3. The boiler slag-flow prevention device of claim 2, wherein: the rotary table is characterized in that a water cooling assembly is arranged below the rotary table and comprises a liquid storage box body, a water cooling cavity is formed by enclosing the lower end face of the bottom plate and the inner side wall of the fixed shell, cooling liquid is arranged in the water cooling cavity, a liquid outlet hole and a liquid inlet hole are respectively formed in the side face of the water cooling cavity, the liquid outlet hole is communicated with the liquid storage box body through a liquid outlet pipeline, a water pump is arranged in the liquid storage box body, and the water pump is communicated with the liquid inlet hole through a liquid inlet pipeline.
4. The boiler slag-flow prevention device of claim 3, wherein: an air cooling assembly is arranged above the rotary table and comprises a fan, the fan is fixedly connected to the inner side wall of the fixed shell, and the air outlet direction of the fan faces the upper end of the rotary table; the top end of the fixed shell is provided with an air outlet and is communicated with one end of an air cooling pipeline through the air outlet, and the other end of the air cooling pipeline is communicated with the water-cooled cavity; and a plurality of air inlet holes are formed in the side wall of the hollow pipe.
5. The boiler slag-flow prevention device of claim 4, wherein: the height of one side of the bottom plate, which is close to the central through hole, is higher than that of the outer edge of the bottom plate.
6. The boiler slag-flow prevention device of claim 5, wherein: slag cooler slag inlet pipe is the slope form setting, the higher one end of slag cooler slag inlet pipe and fixed casing lateral wall fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120703202.8U CN214581039U (en) | 2021-04-07 | 2021-04-07 | Slag-flowing-preventing device for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120703202.8U CN214581039U (en) | 2021-04-07 | 2021-04-07 | Slag-flowing-preventing device for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214581039U true CN214581039U (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120703202.8U Active CN214581039U (en) | 2021-04-07 | 2021-04-07 | Slag-flowing-preventing device for boiler |
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| Country | Link |
|---|---|
| CN (1) | CN214581039U (en) |
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2021
- 2021-04-07 CN CN202120703202.8U patent/CN214581039U/en active Active
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