CN204345626U - The anti-stream slag slag feeding device of a kind of barrel slag cooler - Google Patents
The anti-stream slag slag feeding device of a kind of barrel slag cooler Download PDFInfo
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- CN204345626U CN204345626U CN201420694317.5U CN201420694317U CN204345626U CN 204345626 U CN204345626 U CN 204345626U CN 201420694317 U CN201420694317 U CN 201420694317U CN 204345626 U CN204345626 U CN 204345626U
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Abstract
The utility model relates to the anti-stream slag slag feeding device of a kind of barrel slag cooler, comprise the slag input cylinder that a transverse horizontal is placed, the upper end of described slag input cylinder is provided with slag inlet, the uncovered formation slag notch of left-hand end, is in axial direction provided with one with the helical axis of drum rotating in described slag input cylinder; It is outer and be provided with bearing block that one end of described helical axis is fixedly connected with cylinder, the other end stretches out described slag input cylinder; The slag notch side plug-in type of described slag input cylinder is arranged on the end plate of described cylinder.The anti-stream slag slag feeding device of the utility model barrel slag cooler, stream slag phenomenon is there is when can prevent CFBB Hot slag from entering barrel slag cooler, the uncontrollable warm sludge of flow being entered barrel slag cooler by gravity flow can be become conditional, that flow is controlled mode enters in cylinder, once there is stream slag phenomenon, there is auto-lock function, effective control warm sludge enters in cylinder, anti-fluid stopping slag, avoids the harm that stream slag brings.
Description
Technical field
The utility model belongs to thermal power plant barrel slag cooler technical field, is specifically related to the anti-stream slag slag feeding device of a kind of barrel slag cooler.
Background technology
Thermal power plant circulating fluidized-bed boiler ash temperatures as high more than 1000 DEG C, carries out without cooling device the process that cools, and cools or carry to store to transport all cannot realize.Therefore, generally adopt now barrel slag cooler first warm sludge to be cooled to low temperature (general less than 150 DEG C), and then be transported to storage facilities by conveying equipment, last entrucking transport.
Barrel slag cooler at present more adopts direct slag input mode, namely the warm sludge that boiler slag removal mouth is discharged is undertaken cooling being discharged into conveying equipment again by utilizing the self gravitation of warm sludge and mobility directly to enter under the effect of boiler pressure-fired after in cylinder after expansion joint, valve and pipeline, and the passage that is warm sludge enters cylinder does not have the measure that warm sludge can be hindered to flow.Pressure-fired (about 10kPa) in boiler hearth of circulating fluidized bed, the mobility of warm sludge is very good again, when boiler operatiopn is not steady, warm sludge granularity is partially thin or when using the explosive broken fuel such as brown coal, the warm sludge (molten steel as fusing) that mobile performance is fabulous is very easy to flow directly to barrel slag cooler from boiler slag removal mouth without cooling under furnace pressure effect and exports even conveying equipment, this phenomenon is called " stream slag " or " slag gravity flow " (for convenience of description, being below referred to as stream slag).
Stream slag is the improper phenomenon that thermal power plant CFBB occurs, and does not have omen, do not have rule during generation before generation, uncontrollable, very harmful after occurring.Not only there is potential safety hazard in stream slag phenomenon, also damage barrel slag cooler and conveying equipment and electrical control equipment, the more important thing is that a large amount of warm sludge flows out causes boiler bed thickness of feed layer to reduce rapidly, affect bed pressure, time serious, boiler can only reduce load, and generated energy reduces, power plant economic benefit reduces, even have to blowing out, can not generate electricity, therefore power plant can sustain a great loss.
The root that stream slag phenomenon occurs, at boiler, shows barrel slag cooler, and power plant and barrel slag cooler manufacturer are all in the method for making great efforts to seek to solve stream slag for many years, produce little effect.
Summary of the invention
The purpose of this utility model is solve above-mentioned technical problem and provide a kind of barrel slag cooler anti-stream slag slag feeding device.
For achieving the above object, the utility model adopts following technical scheme:
The anti-stream slag slag feeding device of a kind of barrel slag cooler, comprise the slag input cylinder that a transverse horizontal is placed, the upper end of described slag input cylinder is provided with slag inlet, the uncovered formation slag notch of left-hand end, is in axial direction provided with one with the helical axis of drum rotating in described slag input cylinder; It is outer and be provided with bearing block that one end of described helical axis is fixedly connected with cylinder, the other end stretches out described slag input cylinder; The slag notch side plug-in type of described slag input cylinder is arranged on the end plate of described cylinder.
Described end plate is provided with slag input cylinder installing hole, and described slag input cylinder is arranged on described end plate by described slag input cylinder installing hole, and the gap between described slag input cylinder and described slag input cylinder installing hole is sealed by the first sealing device; Described slag input cylinder right-hand end has helical axis installing hole, and the described helical axis other end stretches out through described helical axis installing hole, and the gap between described helical axis installing hole and helical axis is sealed by the second sealing device.
Gap uniformity between the inwall of the helical blade on described helical axis and described slag input cylinder.
Described helical axis is water-cooling spiral axle, and described water-cooling spiral axle connects rotating water joint.
Described slag input cylinder is a cooling jacket, and described cooling jacket connects low-temperature receiver by pipeline.
Described cooling jacket is cooling water jecket.
The anti-stream slag slag feeding device of the utility model barrel slag cooler, stream slag phenomenon is there is when can prevent CFBB Hot slag from entering barrel slag cooler, the uncontrollable warm sludge of flow being entered barrel slag cooler by gravity flow can be become conditional, that flow is controlled mode enters in cylinder, once there is stream slag phenomenon, the present invention has auto-lock function, effective control warm sludge enters in cylinder, thus anti-fluid stopping slag, avoid the harm that stream slag brings.
Accompanying drawing explanation
Figure 1 shows that the structural representation of the anti-stream slag slag feeding device of a kind of barrel slag cooler that the utility model embodiment provides.
Detailed description of the invention
Below, in conjunction with example, substantive distinguishing features of the present utility model and advantage are further described, but the utility model is not limited to listed embodiment.
Shown in Figure 1, figure 1 show the structure of the anti-stream slag slag feeding device of a kind of barrel slag cooler that the invention embodiment provides.For convenience of explanation, illustrate only the part relevant with the invention embodiment.
Refer to Fig. 1, the anti-stream slag slag feeding device of a kind of barrel slag cooler, comprise the slag input cylinder 3 that a transverse horizontal is placed, the upper end of described slag input cylinder has slag input hole, on this slag input hole, welding manner is provided with slag inlet 1, the uncovered formation slag notch of left-hand end, is in axial direction provided with one with the helical axis 2 of drum rotating in described slag input cylinder 3; It is outer and be provided with bearing block 4 that one end (left-hand end) of described helical axis 2 is fixedly connected with cylinder 8, the other end (right-hand end) stretches out described slag input cylinder 2; The slag notch side plug-in type of described slag input cylinder 2 is arranged on the end plate 9 of described cylinder 8, does not rotate with described cylinder 8.
Wherein, described end plate 9 is provided with slag input cylinder installing hole, and described slag input cylinder is arranged on described end plate by described slag input cylinder installing hole, and the gap between described slag input cylinder and described slag input cylinder installing hole is sealed by the first sealing device 6; Described slag input cylinder right-hand end has helical axis installing hole, and the described helical axis other end stretches out through described helical axis installing hole, and the gap between described helical axis installing hole and helical axis is sealed by the second sealing device 7.
It should be noted that, described first sealing device 6, second sealing device 7 can be mechanical seal, packing seal, combination sealing etc., and concrete sealing means is not limit.
Preferably, the helical blade on described helical axis 2 and the gap uniformity between the inwall of described slag input cylinder 2.
It should be noted that, described spiral shaft vane can adopt continous way, also can adopt intermittent type, and described spiral shaft vane can be dentation solid construction, can be also hollow-core construction, specifically not limit.
As the another embodiment of the invention, described helical axis 2 is water-cooling spiral axle, and described water-cooling spiral axle connects rotating water joint 5, and the warm sludge material carried out flowing through for passing into cooling water in rotary course in rotating shaft 2 once cools.Described rotating water joint can adopt Bidirectional rotating water joint, also can adopt single direction rotation water swivel.
It should be noted that, when needs cool rotating shaft 2, except employing water cooling mode, described helical axis 2 also can adopt air cooling mode to cool.
As the another embodiment of the invention, described slag input cylinder 3 is a cooling jacket, and described cooling jacket connects low-temperature receiver by pipeline.By slag input cylinder is designed to cooling jacket, can cool in rear feeding cylinder to the warm sludge material flow through.Described cooling jacket can adopt water-cooling pattern to cool, and air cooling way also can be adopted to cool.
Preferably, described cooling jacket is cooling water jecket, adopts water cooling mode cooling, water-cooling jacket non rotating, adopts fixing water pipe head to connect cooling water source.
Slag inlet 1 connects boiler slag removal mouth by other device, warm sludge enters slag input cylinder 3 by slag inlet 1, drum rotating, drives helical axis 2 to rotate, on helical axis 2, helical blade promotion warm sludge enters in cylinder 8 and cools, then is transported to outlet discharge by cylinder 8 internal helical blades.
When warm sludge flow increases, namely improve cylinder 8 rotating speed, thus improve helical axis 2 rotating speed, accelerate warm sludge and enter in cylinder.Warm sludge flow hour, then reduce rotating speed.Thus, just can control helical axis 2 rotating speed by cylinder 8 rotating speed, thus control warm sludge flow, make warm sludge certainly can not be advanced into cylinder, but enter cylinder with limitation, controllably.
Once there is stream slag, namely close down cylinder 8, helical axis 2 stops thereupon, and namely the helical blade on it plays the effect of gate, stops warm sludge to enter in cylinder.Although still have gap between helical blade and slag input cylinder 3 inwall, but gap is very little, and play the effect of slag envelope there is not the original lime-ash flowed before slag simultaneously, the warm sludge that can flow in cylinder after stall is few, can not pour in and form stream slag, stream slag scope control before the slag inlet that can not work the mischief, thus reach the stream slag phenomenon occurred in cylinder preventing from working the mischief.
If continue to start barrel slag cooler (must until boiler operatiopn stable after), cylinder 8 rotarily drives helical axis 2 and rotates, continuing to promote lime-ash enters in cylinder, due to extruding and the disturbance of helical blade, also can broken may the lime-ash of coking, solve the problem of the bed clinkering not adopting the improper stoppage in transit of this device boiler to cause, be kill two birds with one stone simultaneously.
Due to warm sludge temperature higher (the highest can be large more than 1000 DEG C), and chiseling property of mill strong (having gangue composition), helical axis, helical blade and slag input cylinder all adopt antiwear heat resisting material to make, as can stainless steel material be used, or carbon steel, cast steel, cast iron and composite.
The invention changes the slag input mode of present barrel slag cooler, namely warm sludge is uncontrollably entered in cylinder to change into by gravity and mobility voluntarily and enter with limitation, controllably, when there is stream slag, water-cooling spiral axial screw blade can stop that warm sludge pours in cylinder, anti-fluid stopping slag phenomenon occurs within the scope of cylinder, thus reduce the harm of flowing slag and barrel slag cooler and conveying equipment thereafter being caused, reduce the economic loss that thermal power plant is brought because of stream slag.
The above is only the preferred embodiment of the invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the protection domain of the invention.
Claims (8)
1. the anti-stream slag slag feeding device of barrel slag cooler, it is characterized in that, comprise the slag input cylinder that a transverse horizontal is placed, the upper end of described slag input cylinder is provided with slag inlet, the uncovered formation slag notch of left-hand end, is in axial direction provided with one with the helical axis of drum rotating in described slag input cylinder; It is outer and be provided with bearing block that one end of described helical axis is fixedly connected with cylinder, the other end stretches out described slag input cylinder; The slag notch side plug-in type of described slag input cylinder is arranged on the end plate of described cylinder.
2. the anti-stream slag slag feeding device of barrel slag cooler according to claim 1, it is characterized in that, described end plate is provided with slag input cylinder installing hole, described slag input cylinder is arranged on described end plate by described slag input cylinder installing hole, and the gap between described slag input cylinder and described slag input cylinder installing hole is sealed by the first sealing device; Described slag input cylinder right-hand end has helical axis installing hole, and the described helical axis other end stretches out through described helical axis installing hole, and the gap between described helical axis installing hole and helical axis is sealed by the second sealing device.
3. the anti-stream slag slag feeding device of barrel slag cooler according to claim 2, is characterized in that, the gap uniformity between the inwall of the helical blade on described helical axis and described slag input cylinder.
4. the anti-stream slag slag feeding device of barrel slag cooler according to any one of claim 1 ~ 3, it is characterized in that, described helical axis is water-cooling spiral axle, and described water-cooling spiral axle connects rotating water joint.
5. the anti-stream slag slag feeding device of barrel slag cooler according to claim 4, it is characterized in that, described slag input cylinder is a cooling jacket, and described cooling jacket connects low-temperature receiver by pipeline.
6. the anti-stream slag slag feeding device of barrel slag cooler according to claim 5, it is characterized in that, described cooling jacket is cooling water jecket.
7. the anti-stream slag slag feeding device of barrel slag cooler according to any one of claim 1 ~ 3, it is characterized in that, described slag input cylinder is a cooling jacket, and described cooling jacket connects low-temperature receiver by pipeline.
8. the anti-stream slag slag feeding device of barrel slag cooler according to claim 7, it is characterized in that, described cooling jacket is cooling water jecket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694317.5U CN204345626U (en) | 2014-11-19 | 2014-11-19 | The anti-stream slag slag feeding device of a kind of barrel slag cooler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420694317.5U CN204345626U (en) | 2014-11-19 | 2014-11-19 | The anti-stream slag slag feeding device of a kind of barrel slag cooler |
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| CN204345626U true CN204345626U (en) | 2015-05-20 |
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| CN201420694317.5U Expired - Fee Related CN204345626U (en) | 2014-11-19 | 2014-11-19 | The anti-stream slag slag feeding device of a kind of barrel slag cooler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613467A (en) * | 2014-11-19 | 2015-05-13 | 青岛松灵电力环保设备有限公司 | Anti-slag flowing slag feeding device for roller slag cooler |
| CN105180162A (en) * | 2015-09-16 | 2015-12-23 | 青岛松灵电力环保设备有限公司 | Multi-groove labyrinth ring sealing device of slag cooling machine |
| CN114525155A (en) * | 2022-02-11 | 2022-05-24 | 安徽科达洁能股份有限公司 | Slag cooler for fluidized bed gasification furnace |
-
2014
- 2014-11-19 CN CN201420694317.5U patent/CN204345626U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613467A (en) * | 2014-11-19 | 2015-05-13 | 青岛松灵电力环保设备有限公司 | Anti-slag flowing slag feeding device for roller slag cooler |
| CN105180162A (en) * | 2015-09-16 | 2015-12-23 | 青岛松灵电力环保设备有限公司 | Multi-groove labyrinth ring sealing device of slag cooling machine |
| CN114525155A (en) * | 2022-02-11 | 2022-05-24 | 安徽科达洁能股份有限公司 | Slag cooler for fluidized bed gasification furnace |
| CN114525155B (en) * | 2022-02-11 | 2024-04-09 | 安徽科达洁能股份有限公司 | Slag cooler for fluidized bed gasifier |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20211119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |