CN103884015A - Circulating fluidized bed garbage sludge incinerator - Google Patents
Circulating fluidized bed garbage sludge incinerator Download PDFInfo
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- CN103884015A CN103884015A CN201410104298.0A CN201410104298A CN103884015A CN 103884015 A CN103884015 A CN 103884015A CN 201410104298 A CN201410104298 A CN 201410104298A CN 103884015 A CN103884015 A CN 103884015A
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- fluidized bed
- sludge incinerator
- fluidized
- combustion boiler
- type air
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Abstract
The invention discloses a circulating fluidized bed garbage sludge incinerator. The incinerator is characterized in that a countercurrent dry pyrolysis feeder (2) is arranged on a fluidized bed boiler (1), a high-temperature air bellow (13) is arranged at the bottom of the fluidized bed boiler (1), a cooling slag discharge device (14) is arranged on the lower portion of the high-temperature air bellow (13), a heat preservation type air preheater (8) is connected with the top of the fluidized bed boiler (1), the inlet position of the high-temperature air bellow (13) is connected with a primary air fan (12), an air suction opening of the primary air fan (12) is connected to the heat preservation type air preheater (8), and a coiler superheater (6) and a coiler economizer (7) are arranged in the heat preservation type air preheater (8). The circulating fluidized bed garbage sludge incinerator can be suitable for burning high-moisture garbage sludge, the burning efficiency is high, little auxiliary fuel is added, running is stable, the system resistance is small, the energy consumption is low, and the safety running rate is high.
Description
Technical field
The present invention relates to a kind of recirculating fluidized bed rubbish sludge incinerator, belong to environmental technology field.
Background technology
Recirculating fluidized bed is all widely used in burning city domestic garbage and sludge incineration etc. at present.But the problems such as it is large all to have system and device investment, and the heat transmission equipment in flue blocks up ash, seriously corroded, and operation troubles is many, and SR is large, and energy consumption is high, and technological operation is difficult in maintenance.Its main cause is that the unreasonable and supporting subsidiary engine of burning process exists defect, makes system high to the moisture of raw materials and fuel; Volume, calorific value, volatile matter change inadaptable greatly.
Summary of the invention
The object of the invention is to, a kind of recirculating fluidized bed rubbish sludge incinerator is provided.It can adapt to the rubbish sludge incineration of high-moisture, and efficiency of combustion is high, adds auxiliary fuel few; Stable; SR is little, and energy consumption is low; Safe operation rate is high.
Technical scheme of the present invention: recirculating fluidized bed rubbish sludge incinerator, be characterized in: comprise that fluidized-bed combustion boiler is provided with counter-current drying pyrolysis dispenser, fluidized-bed combustion boiler bottom is provided with high temperature bellows, high temperature bellows bottom is provided with cooling slag-discharging device, and fluidized-bed combustion boiler top is connected with heat preserving type air preheater; The import department of described high temperature bellows is connected with primary air fan; The air entry of primary air fan is connected to heat preserving type air preheater; In described heat preserving type air preheater, be provided with coiled pipe superheater and loop economizer.
In above-mentioned recirculating fluidized bed rubbish sludge incinerator, on described fluidized-bed combustion boiler, be also provided with auxiliary fuel supply system.
In aforesaid recirculating fluidized bed rubbish sludge incinerator, in described high temperature bellows, be provided with automatic combustion machine and air distribution plate.
In aforesaid recirculating fluidized bed rubbish sludge incinerator, described counter-current drying pyrolysis dispenser comprises that screw feeder is connected with the reflux dewatering overfire air device that is connected to screw feeder porch, and the air outlet of reflux dewatering overfire air device is connected into fluidized-bed combustion boiler.Reflux dewatering overfire air device is extracted the hot-air in fluidized-bed combustion boiler again enter fluidized-bed combustion boiler out, makes hot-air and material countercurrent movement, therefore can carry out dry thermal cracking to material.
In aforesaid recirculating fluidized bed rubbish sludge incinerator, described heat preserving type air preheater comprises the concave-board of internal layer and is enclosed in the heat-insulation layer outside concave-board.It between concave-board and heat-insulation layer, is air heat district.Flue gas is discharged from concave-board inner side, in discharge process, the air in air heat district is heated.
Compared with prior art, rubbish sludge incinerator of the present invention has improved combustion rate.Adopt recirculating fluidized bed rubbish sludge incinerator of the present invention, can adapt to the rubbish sludge incineration of high-moisture, add auxiliary fuel few; Stable; SR reduces, Energy Intensity Reduction 10%; Safe operation rate improves 2%.Recirculating fluidized bed rubbish sludge incinerator of the present invention can be used for burning city domestic garbage, sludge of sewage treatment plant and dirty phosphorous chemical industry phosphorus mud and burns phosphoric acid product processed.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic cross-section of heat preserving type air preheater of the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated, but not as the foundation to the present invention's restriction.
Embodiment.Recirculating fluidized bed rubbish sludge incinerator, as shown in Figure 1, comprise that fluidized-bed combustion boiler 1 is provided with counter-current drying pyrolysis dispenser 2, fluidized-bed combustion boiler 1 bottom is provided with high temperature bellows 13, high temperature bellows 13 bottoms are provided with cooling slag-discharging device 14, and fluidized-bed combustion boiler 1 top is connected with heat preserving type air preheater 8; The import department of described high temperature bellows 13 is connected with primary air fan 12; The air entry of primary air fan 12 is connected to heat preserving type air preheater 8; In described heat preserving type air preheater 8, be provided with coiled pipe superheater 6 and loop economizer 7.On described fluidized-bed combustion boiler 1, be also provided with auxiliary fuel supply system 11.In described high temperature bellows 13, be provided with automatic combustion machine 4 and air distribution plate 5.Described counter-current drying pyrolysis dispenser 2 comprises that screw feeder is connected with the reflux dewatering overfire air device 3 that is connected to screw feeder porch, and the air outlet of reflux dewatering overfire air device 3 is connected into fluidized-bed combustion boiler 1.Described heat preserving type air preheater 8 comprises the concave-board 17 of internal layer and is enclosed in the heat-insulation layer 15 outside concave-board, as shown in Figure 2.
Operation principle of the present invention: when use, rubbish mud material is lowered to fluidized-bed combustion boiler 1 in the propelling of counter-current drying pyrolysis batcher 2, counter-current drying pyrogen material under the effect of reflux dewatering overfire air device 3; The import of primary air fan 12 is connected with heat preserving type air preheater 8 by high temperature smoke pipe 9, and air enters high temperature bellows 13 after heating; In the time of ignition trigger, open automatic combustion machine 4; Regulate at need auxiliary charging gear 11 in burning; Burner hearth first by carrying out heat exchange with horizontal superheater 6 and horizontal economizer and heat preserving type air preheater 8 after fluidized-bed combustion boiler 1 heat exchange in high-temperature flue; The slag of burning discharges according to blast.
Claims (5)
1. recirculating fluidized bed rubbish sludge incinerator, it is characterized in that: comprise that fluidized-bed combustion boiler (1) is provided with counter-current drying pyrolysis dispenser (2), fluidized-bed combustion boiler (1) bottom is provided with high temperature bellows (13), high temperature bellows (13) bottom is provided with cooling slag-discharging device (14), and fluidized-bed combustion boiler (1) top is connected with heat preserving type air preheater (8); The import department of described high temperature bellows (13) is connected with primary air fan (12); The air entry of primary air fan (12) is connected to heat preserving type air preheater (8); In described heat preserving type air preheater (8), be provided with coiled pipe superheater (6) and loop economizer (7).
2. recirculating fluidized bed rubbish sludge incinerator according to claim 1, is characterized in that: on described fluidized-bed combustion boiler (1), be also provided with auxiliary fuel supply system (11).
3. recirculating fluidized bed rubbish sludge incinerator according to claim 1, is characterized in that: in described high temperature bellows (13), be provided with automatic combustion machine (4) and air distribution plate (5).
4. recirculating fluidized bed rubbish sludge incinerator according to claim 1, it is characterized in that: described counter-current drying pyrolysis dispenser (2) comprises that screw feeder is connected with the reflux dewatering overfire air device (3) that is connected to screw feeder porch, and the air outlet of reflux dewatering overfire air device (3) is connected into fluidized-bed combustion boiler (1).
5. recirculating fluidized bed rubbish sludge incinerator according to claim 2, is characterized in that: described heat preserving type air preheater (8) comprises the concave-board (17) of internal layer and is enclosed in the heat-insulation layer (15) outside concave-board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104298.0A CN103884015B (en) | 2014-03-20 | 2014-03-20 | Recirculating fluidized bed garbage sludge incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410104298.0A CN103884015B (en) | 2014-03-20 | 2014-03-20 | Recirculating fluidized bed garbage sludge incinerator |
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| Publication Number | Publication Date |
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| CN103884015A true CN103884015A (en) | 2014-06-25 |
| CN103884015B CN103884015B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410104298.0A Active CN103884015B (en) | 2014-03-20 | 2014-03-20 | Recirculating fluidized bed garbage sludge incinerator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669961A (en) * | 2005-03-14 | 2005-09-21 | 常州市排水管理处 | Sludge burning treatment method and system |
| CN201437986U (en) * | 2009-06-12 | 2010-04-14 | 浙江大学 | Special waste fluidized bed incinerator |
| CN101706108A (en) * | 2009-11-08 | 2010-05-12 | 无锡华光锅炉股份有限公司 | Structure for arranging heating surfaces in tail flue of garbage incinerator of circulating fluid bed |
| CN102887619A (en) * | 2012-11-02 | 2013-01-23 | 张开晓 | Water-containing sludge treatment method |
| CN203489257U (en) * | 2013-09-27 | 2014-03-19 | 长沙科汇节能技术有限公司 | Circulating fluidized bed boiler with coal gangue with low heating value as fuel |
| CN203744269U (en) * | 2014-03-20 | 2014-07-30 | 湖州荣恒不锈钢有限公司 | Rubbish and sludge incinerator of circulating fluidized bed |
-
2014
- 2014-03-20 CN CN201410104298.0A patent/CN103884015B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1669961A (en) * | 2005-03-14 | 2005-09-21 | 常州市排水管理处 | Sludge burning treatment method and system |
| CN201437986U (en) * | 2009-06-12 | 2010-04-14 | 浙江大学 | Special waste fluidized bed incinerator |
| CN101706108A (en) * | 2009-11-08 | 2010-05-12 | 无锡华光锅炉股份有限公司 | Structure for arranging heating surfaces in tail flue of garbage incinerator of circulating fluid bed |
| CN102887619A (en) * | 2012-11-02 | 2013-01-23 | 张开晓 | Water-containing sludge treatment method |
| CN203489257U (en) * | 2013-09-27 | 2014-03-19 | 长沙科汇节能技术有限公司 | Circulating fluidized bed boiler with coal gangue with low heating value as fuel |
| CN203744269U (en) * | 2014-03-20 | 2014-07-30 | 湖州荣恒不锈钢有限公司 | Rubbish and sludge incinerator of circulating fluidized bed |
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| Publication number | Publication date |
|---|---|
| CN103884015B (en) | 2016-01-06 |
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Inventor after: Yuan Xiaoping Inventor before: Yang Min |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 550003 Guizhou City, Guiyang province Yunyan District Granville Road, building 116-123, No. 1, building 1, unit 9, No. 3 Patentee after: Guiyang universal environmental protection energy saving Technology Co., Ltd. Address before: 313012 Zhejiang Province, Huzhou city Nanxun District Shuanglin Zhen Zhen Xi Dou Cun Zhao Jie Patentee before: Huzhou Rong Heng corrosion-resistant steel Co., Ltd |