CN102419091A - Fluidized bed combustion boiler and anti-blocking device for discharging pipe of fluidized bed combustion boiler - Google Patents
Fluidized bed combustion boiler and anti-blocking device for discharging pipe of fluidized bed combustion boiler Download PDFInfo
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- CN102419091A CN102419091A CN2011104248515A CN201110424851A CN102419091A CN 102419091 A CN102419091 A CN 102419091A CN 2011104248515 A CN2011104248515 A CN 2011104248515A CN 201110424851 A CN201110424851 A CN 201110424851A CN 102419091 A CN102419091 A CN 102419091A
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Abstract
The invention provides a fluidized bed combustion boiler and an anti-blocking device for a discharging pipe of the fluidized bed combustion boiler. The anti-blocking device comprises an air pipe and an air guide element, wherein the air pipe comprises a first end and a second end; the first end of the air pipe is connected with an air source; at least one part of the air guide element is arranged in a chute; the air guide element comprises an air inlet end and an air outlet end; the air inlet end is connected with the second end of the air pipe; and the air outlet end is arranged towards the outlet direction of the chute. Air flow is introduced into the chute of the discharging pipe, an air curtain is formed at the bottom of the chute, and materials quickly flow into a drying rotary drum under the actions of gravity and the air curtain when falling into the chute, so that the problem that the pipe is blocked by stacked materials because the materials are heated and adhered on the chute after contacting the chute is solved.
Description
Technical field
The present invention relates to the fluidized bed furnace field, more specifically, relate to the anti-block apparatus of a kind of fluidized bed furnace and tremie pipe thereof.
Background technology
The tremie pipe of fluidized bed furnace of the prior art has oblique tremie pipe and segmentation tremie pipe two forms.
Fig. 1 shows the partial schematic diagram of the fluidized bed furnace with oblique tremie pipe.Fluidized bed furnace among Fig. 1 adopts a tremie pipe 130 that becomes 60 ° of angles with horizontal plane, and material flows in the drying roller 300 by deadweight.But tremie pipe 130 is easy to generate the problem of plugging.
Fig. 2 shows the partial schematic diagram of the fluidized bed furnace with segmented tremie pipe.Tremie pipe 130 comprises straight tube 131 and skewed slot 132, and wherein, straight tube 131 is built in the body of wall of fluidized bed furnace, and skewed slot 132 becomes 60 ° of angles to be installed in the inside of fluidized bed furnace with horizontal plane.Material falls into skewed slot 132 by deadweight by straight tube 131, is flowed in the drying roller 300 by skewed slot 132 then.Straight tube 131 not with material generation direct friction, have long service life; Skewed slot 132 directly contacts with material, easy abrasion, however the problem of plugging takes place in skewed slot 132 easily, in case the plugging problem takes place, just needs manual work to dredge.
Summary of the invention
The present invention aims to provide the anti-block apparatus of a kind of fluidized bed furnace and tremie pipe thereof, with the problem of the tremie pipe plugging that solves prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, a kind of anti-block apparatus of tremie pipe of fluidized bed furnace is provided, tremie pipe comprises straight tube and the skewed slot that is arranged on the straight tube below, anti-block apparatus comprises: airduct, airduct comprise first end and second end; First end of airduct is connected with source of the gas; The wind-guiding element, at least a portion of wind-guiding element is arranged in the skewed slot, and the wind-guiding element comprises air intake and outlet air end, and air intake is connected with second end of airduct, and outlet air end is towards the Way out setting of skewed slot.
Further, the wind-guiding element is tubular, and the area of the air intake of the wind-guiding element of tubular is greater than the area of the outlet air end of the wind-guiding element of tubular.
Further, the end face of air intake has circular open, and the end face of outlet air end has arc opening.
Further, the radius of circular open is less than the radius of arc opening.
Further, the opened gap of arc opening is the 2-6 millimeter.
Further, the sidewall of wind-guiding element comprises top and curved bottom.
Further, be connected through transition face between top and the curved bottom.
Further, anti-block apparatus also comprises the control valve that is arranged on the airduct.
According to another aspect of the present invention, a kind of fluidized bed furnace is provided, has comprised tremie pipe and anti-block apparatus, this anti-block apparatus is above-mentioned anti-block apparatus.
Further, fluidized bed furnace also comprises blower fan and isobaric bellows, and blower fan is connected with the inlet of isobaric bellows, and the outlet of isobaric bellows is connected with the air intake of the wind-guiding element of anti-block apparatus.
The present invention feeds air-flow in the skewed slot of tremie pipe; Air curtain is formed on the bottom at skewed slot, after material falls into skewed slot, under the effect of gravity and air curtain; Flow in the drying roller rapidly; Thereby after having avoided material and skewed slot contacting, be bonded on the skewed slot, thereby cause solid accumulation to cause the problem of plugging owing to being heated.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the partial schematic diagram with fluidized bed furnace of oblique tremie pipe of the prior art;
Fig. 2 has schematically shown the partial schematic diagram with fluidized bed furnace of segmented tremie pipe of the prior art;
Fig. 3 has schematically shown the structural representation of the fluidized bed furnace with the anti-block apparatus among the present invention;
Fig. 4 has schematically shown the enlarged drawing of A portion among Fig. 3;
Fig. 5 has schematically shown the perspective view of wind-guiding element; And
The installation that Fig. 6 has schematically shown between wind-guiding element and skewed slot, the airduct concerns sketch map.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, a kind of anti-block apparatus of tremie pipe of fluidized bed furnace is provided.Like Fig. 3 and shown in Figure 4, the tremie pipe 130 of fluidized bed furnace comprises straight tube 131 and the skewed slot 132 that is arranged on straight tube 131 belows.Anti-block apparatus comprises airduct 210 and wind-guiding element 230.Airduct 210 comprises first end and second end; First end of airduct 210 is connected with source of the gas.At least a portion of wind-guiding element 230 is arranged in the skewed slot 132, and wind-guiding element 230 comprises air intake 232 and outlet air end 233, and air intake 232 is connected with second end of airduct 210, and outlet air end 233 is towards the Way out setting of skewed slot 132.
Please refer to Fig. 3, material is being dropped on the skewed slot 132 by straight tube 131 under the effect of self, is flowed in the drying roller 300 by skewed slot 132 then.From the air-flow of airduct 210, behind wind-guiding element 230, form even a, air curtain at a high speed in the bottom of skewed slot 132.After material falls into skewed slot 132 by straight tube 131; Under the effect of gravity and air curtain, flow into rapidly in the drying roller 300, thereby after having avoided material and skewed slot 132 contacting; Be bonded in owing to being heated on the skewed slot 132, thereby cause solid accumulation to cause the problem of plugging.Adopt the anti-block apparatus among the present invention, can significantly reduce the frequency that plugging takes place, alleviate labor cleaning's workload, this anti-block apparatus also has characteristics simple in structure, easy to maintenance.
As illustrated in Figures 5 and 6, wind-guiding element 230 is tubular, and the area of air intake 232 is greater than the area of outlet air end 233.Adopt the wind-guiding element of this structure, can accelerate flow velocity, make material (for example damp sand) before contacting, just brought into drying roller 300, thereby reached better blocking-proof result by air-flow with skewed slot 132 by the air-flow of wind-guiding element 230 outputs.
Preferably, the end face of air intake 232 has circular open, and the end face of outlet air end 233 has arc opening.Preferably, the radius of circular open is less than the radius of arc opening.Preferably, the opened gap of arc opening is the 2-6 millimeter.Preferably, the center of circle of arc opening overlaps with the center of circle of skewed slot.Owing to adopted above-mentioned structure, can make the flow velocity at velocity ratio air intake 232 places that export by outlet air end 233 increase 6～17 times, thereby can obtain the effect of better drying.
Preferably, the sidewall of wind-guiding element 230 comprises top 234 and curved bottom 231, and preferably, top 234 is arc-shaped bends.Further, be connected through transition face 235 between top 234 and the curved bottom 231, can be so that get into the air-flow of air intake 232 from outlet air end 233 ejections under the very little situation of the pressure loss.
Preferably, anti-block apparatus also comprises the control valve 220 that is arranged on the airduct 210.Preferably, control valve 220 is butterfly valves.Whether can control bubbling air in the down fold through control valve 220.
As second aspect of the present invention, a kind of fluidized bed furnace is provided.Please combine Fig. 3, this fluidized bed furnace comprises tremie pipe and anti-block apparatus, and this anti-block apparatus is the anti-block apparatus 200 among above-mentioned each embodiment.Preferably, fluidized bed furnace also comprises blower fan 110 and isobaric bellows 120, and blower fan 110 is connected with the inlet of isobaric bellows 120, and the outlet of isobaric bellows 120 is connected with the air intake 232 of the wind-guiding element 230 of anti-block apparatus.
When fluidized bed furnace is started working; Open blower fan 110; So that be full of the formation malleation in isobaric bellows 120 and the fluidized bed furnace 100; Open control valve 220 then, be blown into skewed slot 132 with wind-guiding element 230, thereby form even a, air curtain at a high speed in the bottom of skewed slot 132 so that the air communication that blower fan 110 produces is crossed airduct 210.After material falls into skewed slot 132 by straight tube 131; Under the effect of gravity and air curtain, flow into rapidly in the drying roller 300, thereby after having avoided material and skewed slot 132 contacting; Be bonded in owing to being heated on the skewed slot 132, thereby cause solid accumulation to cause the problem of plugging.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the anti-block apparatus of the tremie pipe of a fluidized bed furnace, said tremie pipe (130) comprise straight tube (131) and are arranged on the skewed slot (132) of said straight tube (131) below, it is characterized in that said anti-block apparatus comprises:
Airduct (210), said airduct (210) comprises first end and second end; First end of said airduct (210) is connected with source of the gas;
Wind-guiding element (230); At least a portion of said wind-guiding element (230) is arranged in the said skewed slot (132); Said wind-guiding element (230) comprises air intake (232) and outlet air end (233); Said air intake (232) is connected with second end of said airduct (210), and said outlet air end (233) is towards the Way out setting of said skewed slot (132).
2. anti-block apparatus according to claim 1 is characterized in that, said wind-guiding element (230) is tubular, and the area of the air intake (232) of the wind-guiding element (230) of said tubular is greater than the area of the outlet air end (233) of the wind-guiding element (230) of said tubular.
3. anti-block apparatus according to claim 2 is characterized in that, the end face of said air intake (232) has circular open, and the end face of said outlet air end (233) has arc opening.
4. anti-block apparatus according to claim 3 is characterized in that the radius of said circular open is less than the radius of said arc opening.
5. anti-block apparatus according to claim 3 is characterized in that, the opened gap of said arc opening is the 2-6 millimeter.
6. anti-block apparatus according to claim 3 is characterized in that, the sidewall of said wind-guiding element (230) comprises top (234) and curved bottom (231).
7. anti-block apparatus according to claim 6 is characterized in that, is connected through transition face (235) between said top (234) and the said curved bottom (231).
8. according to each described anti-block apparatus among the claim 1-7, it is characterized in that said anti-block apparatus also comprises the control valve (220) that is arranged on the said airduct (210).
9. a fluidized bed furnace comprises tremie pipe and anti-block apparatus, it is characterized in that, said anti-block apparatus is each described anti-block apparatus (200) among the claim 1-8.
10. fluidized bed furnace according to claim 9; It is characterized in that; Said fluidized bed furnace also comprises blower fan (110) and isobaric bellows (120); Said blower fan (110) is connected with the inlet of said isobaric bellows (120), and the outlet of said isobaric bellows (120) is connected with the air intake (232) of the wind-guiding element (230) of said anti-block apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110424851 CN102419091B (en) | 2011-12-16 | 2011-12-16 | Boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110424851 CN102419091B (en) | 2011-12-16 | 2011-12-16 | Boiler |
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| Publication Number | Publication Date |
|---|---|
| CN102419091A true CN102419091A (en) | 2012-04-18 |
| CN102419091B CN102419091B (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110424851 Active CN102419091B (en) | 2011-12-16 | 2011-12-16 | Boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332522A (en) * | 2017-01-20 | 2018-07-27 | 中联重科股份有限公司 | Drying equipment and Wet sand drying system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62116731A (en) * | 1985-12-06 | 1987-05-28 | Furukawa Mining Co Ltd | Method and furnace for fluidized roasting of copper sulfide ore |
| CN2634299Y (en) * | 2003-07-17 | 2004-08-18 | 吕雪峰 | Double stage separation cleaner fluidized bed coal burning hot air furnace |
| CN201110715Y (en) * | 2007-08-24 | 2008-09-03 | 江西铜业集团公司 | Fluidized bed furnace blanking hopper deposit-proof apparatus |
| CN201212771Y (en) * | 2008-04-30 | 2009-03-25 | 中国恩菲工程技术有限公司 | Boiling stove |
| CN202350508U (en) * | 2011-12-16 | 2012-07-25 | 中联重科股份有限公司 | Fluidized bed furnace and anti-blocking device of feeding tube thereof |
-
2011
- 2011-12-16 CN CN 201110424851 patent/CN102419091B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62116731A (en) * | 1985-12-06 | 1987-05-28 | Furukawa Mining Co Ltd | Method and furnace for fluidized roasting of copper sulfide ore |
| CN2634299Y (en) * | 2003-07-17 | 2004-08-18 | 吕雪峰 | Double stage separation cleaner fluidized bed coal burning hot air furnace |
| CN201110715Y (en) * | 2007-08-24 | 2008-09-03 | 江西铜业集团公司 | Fluidized bed furnace blanking hopper deposit-proof apparatus |
| CN201212771Y (en) * | 2008-04-30 | 2009-03-25 | 中国恩菲工程技术有限公司 | Boiling stove |
| CN202350508U (en) * | 2011-12-16 | 2012-07-25 | 中联重科股份有限公司 | Fluidized bed furnace and anti-blocking device of feeding tube thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李桂宁: "沸腾炉燃料管结渣堵塞的解决方法", 《水泥》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332522A (en) * | 2017-01-20 | 2018-07-27 | 中联重科股份有限公司 | Drying equipment and Wet sand drying system |
| CN108332522B (en) * | 2017-01-20 | 2019-09-10 | 中联重科股份有限公司 | Drying equipment and Wet sand drying system |
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| Publication number | Publication date |
|---|---|
| CN102419091B (en) | 2013-08-07 |
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Address after: 415907, Hunan, Hanshou hi tech Industrial Park, Changde Huang Fu neighborhood committee, No. 1, Union Road Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee before: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |