CN103058487A - Integrated double-fluidized-bed sludge drying combustion apparatus - Google Patents
Integrated double-fluidized-bed sludge drying combustion apparatus Download PDFInfo
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- CN103058487A CN103058487A CN2013100007171A CN201310000717A CN103058487A CN 103058487 A CN103058487 A CN 103058487A CN 2013100007171 A CN2013100007171 A CN 2013100007171A CN 201310000717 A CN201310000717 A CN 201310000717A CN 103058487 A CN103058487 A CN 103058487A
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Abstract
The invention discloses an integrated double-fluidized-bed sludge drying combustion apparatus which comprises a high-moisture sludge fluidization dehydration device, a low-moisture sludge fluidization combustion apparatus and an inertial separator. A sludge overflow pipe and a sludge drying exhaust gas diversion pipe are connected between the high-moisture sludge fluidization dehydration device and the low-moisture sludge fluidization combustion apparatus; a high temperature flue gas exhaust pipe is connected between the low-moisture sludge fluidization combustion apparatus and the inertial separator; and a high temperature separated particle return pipe is connected between the high-moisture sludge fluidization dehydration device and the inertial separator. According to the invention, heat of small high-temperature particles generated in the sludge incinerating process is directly used for drying wet sludge, organic gas generated in the drying process enters the upper part of an incinerator and dried sludge enters the lower part of the incinerator so as to ensure temperature ignition and combustion of the sludge, and thus, when a heat value in the sludge is sufficiently utilized, toxic and harmful gas is subjected to high temperature treatment, conformance to standards of pollution emission is guaranteed and resources are sufficiently utilized.
Description
Technical field
The present invention relates to the energy and environment field, relate in particular to the double-fluidized-bed sludge drying combustion unit of a kind of integrated form.
Background technology
At present, burning is to process the highly effective method of waste, and for mud, burning can maximize and reach minimizing, innoxious and resource utilization.Fluidized-bed sludge incineration is the method that a kind of typical lignin-sludge burns, and before sludge incineration, be through the pre-treatment of mud, purpose is to reduce the water ratio of mud.The special sludge drying machine equipment of the general employing of the pre-treatment of present domestic mud, again pretreated mud being delivered to burning facility burns, so, equipment both expensive not only, consuming needs pretreated energy cost large, and technical process is complicated, disconnects, and is not easy to operation and control.The sludge anhydration burning equipment integrating of latest domestic is that sludge drying machine and sludge incineration fluidized-bed are connected as a single entity, the high-temperature flue gas heating thermal oil or the steam that utilize sludge incineration to produce, recycling thermal oil or steam heating dewatered sludge, although saved the needed electric energy of dewatered sludge, reached resource and taken full advantage of.But, still there are many problems, such as: the both expensive of sludge drying machine equipment itself; The thermal oil recycle system need to consume the energy; System is a many procedure complicated is not easy to red-tape operati etc.
In sum, be necessary to develop the system of a kind of sludge drying and burning integral, and double-fluidized-bed system integrates sludge drying and burning, the high temperature small-particle direct heating dewatered sludge that utilizes sludge incineration to produce.Rational in infrastructure, operation is simple, reaches simultaneously taking full advantage of of resource, and consumption energy cost is little, also is convenient to control and operation.
Summary of the invention
The object of the invention is to for the deficiency in sludge drying and the burning process, provide a kind of integrated form double-fluidized-bed sludge drying combustion unit.
The objective of the invention is to be achieved through the following technical solutions: the double-fluidized-bed sludge drying combustion unit of a kind of integrated form, it comprises high moisture sluge fluidization dewatering unit, low moisture mud fluidization combustion unit and inertial separator; Wherein, high moisture sluge fluidization dewatering unit top has wet mud material inlet and the weary conductance stream of sludge drying interface tube, and side wall upper part has mud upflow tube interface, and lower sidewall has separating at high temperature particle loopback interface tube, and the bottom has air outlet; The top of low moisture mud fluidization combustion unit has the fume emission interface tube, and side wall upper part has the weary conductance stream of sludge drying interface tube, and lower sidewall has mud upflow tube interface, and the bottom has air outlet; The top of inertial separator has the high-temperature flue gas discharge outlet, and sidewall has the fume emission interface tube, and the bottom has separating at high temperature particle loopback interface tube; Connect mud upflow tube and the weary gas thrust-augmenting nozzle of sludge drying between described high moisture sluge fluidization dewatering unit and the low moisture mud fluidization combustion unit; Connect the high-temperature flue gas vent pipe between low moisture mud fluidization combustion unit and the inertial separator; Connect separating at high temperature particle loopback pipe between high moisture sluge fluidization dewatering unit and the inertial separator.
The invention has the beneficial effects as follows: the double-fluidized-bed sludge anhydration burning device of integrated form of the present invention, equipment is simple, and whole system does not have mechanical component, convenient operation and control; Wet mud feed, high temperature small-particle backheat, a wind apparatus are automatic control, save to consume and manpower; Wet mud fluidisation mummification in fluidized-bed is heated evenly stable; The wet mud of the high temperature small-particle direct heating mummification that utilizes sludge incineration to produce reaches the maximum utilization of resource; Reduce facility investment and the energy, manpower consumption; The sludge stream fluidized-bed incineration is stable, and temperature is high, evenly.
Description of drawings
Fig. 1 is schematic process flow diagram of the present invention;
Fig. 2 is structural representation of the present invention;
Among the figure, high moisture sluge fluidization dewatering unit 1, low moisture mud fluidization combustion unit 2, inertial separator 3, mud upflow tube 4, the weary gas thrust-augmenting nozzle 5 of sludge drying, high-temperature flue gas vent pipe 6, separating at high temperature particle loopback pipe 7, wet mud feed 8, a dry wind 9, wind 10 of burning, high-temperature flue gas 11.
Embodiment
As shown in Figure 2; the double-fluidized-bed sludge drying combustion unit of integrated form of the present invention comprises high moisture sluge fluidization dewatering unit 1, low moisture mud fluidization combustion unit 2 and inertial separator 3; wherein; high moisture sluge fluidization dewatering unit 1 top has wet mud material inlet and the weary conductance stream of sludge drying interface tube; side wall upper part has mud upflow tube interface; lower sidewall has separating at high temperature particle loopback interface tube, and the bottom has air outlet.The top of low moisture mud fluidization combustion unit 2 has the fume emission interface tube, and side wall upper part has the weary conductance stream of sludge drying interface tube, and lower sidewall has mud upflow tube interface, and the bottom has air outlet.The top of inertial separator 3 has the high-temperature flue gas discharge outlet, and sidewall has the fume emission interface tube, and the bottom has separating at high temperature particle loopback interface tube.
Connect mud upflow tube 4 and the weary gas thrust-augmenting nozzle 5 of sludge drying between high moisture sluge fluidization dewatering unit 1 and the low moisture mud fluidization combustion unit 2.Connect high-temperature flue gas vent pipe 6 between low moisture mud fluidization combustion unit 2 and the inertial separator 3.Connect separating at high temperature particle loopback pipe 7 between high moisture sluge fluidization dewatering unit 1 and the inertial separator 3.Described high moisture sluge fluidization dewatering unit 1 and low moisture mud fluidization combustion unit 2 are fluidized-bed structure.
Working process of the present invention is as follows: the mud that will wet is sent into high moisture sluge fluidization desiccation apparatus 1 from the wet mud material inlet at high moisture sluge fluidization desiccation apparatus 1 top, and the air outlet in high moisture sluge fluidization desiccation apparatus 1 bottom passes into dry wind, wet mud carries out the fluidisation mummification in high moisture sluge fluidization dewatering unit 1, be heated evenly stable.Mud after the mummification enters low moisture mud fluidization combustion unit 2 by mud upflow tube 4 and carries out fluidized incineration, and the air outlet in low moisture mud fluidization combustion unit 2 bottoms passes into wind of burning simultaneously, and the sludge stream fluidized-bed incineration is stable, and temperature is high, evenly; The weary gas of the sludge drying that produces after the mummification enters low moisture mud fluidization combustion unit 2 by the weary gas thrust-augmenting nozzle 5 of sludge drying, and equipment is simple, and whole system does not have mechanical component, convenient operation and control.The flue gas that sludge incineration produces is discharged body of heater by high-temperature flue gas vent pipe 6.Discharge the body of heater flue gas and enter inertial separator 3, the mud that particle is larger remains, and send into 1 pair of wet mud of high moisture sluge fluidization desiccation apparatus by a separating at high temperature loopback pipe 7 and carry out the fluidisation mummification, the wet mud of the high temperature small-particle direct heating mummification that utilizes sludge incineration to produce reaches the maximum utilization of resource; High-temperature flue gas 11 is discharged by the high-temperature flue gas discharge outlet.
The short grained heat of high temperature that in the present invention sludge incineration is produced is directly used in wet sludge anhydration, the organic gas that produces in the drying process enters incinerator top by pipe connecting, and the mud after the mummification catches fire and burns by the temperature that upflow tube enters the bottom assurance mud of incinerator, in the calorific value in taking full advantage of mud, make toxic and harmful through pyroprocessing, guarantee that disposal of pollutants is up to standard, resource is fully used.When mud as received basis calorific value 1000kJ/kg, the present invention does not need auxiliary fuel, can guarantee the Systems balanth operation, and temperature is at 850 ℃ in the incinerator, and mud reaches more than 90% through subtracting capacity behind the anhydration and incineration.
Claims (2)
1. the double-fluidized-bed sludge drying combustion unit of integrated form is characterized in that, it comprises high moisture sluge fluidization dewatering unit (1), low moisture mud fluidization combustion unit (2) and inertial separator (3) etc.; Wherein, high moisture sluge fluidization dewatering unit (1) top has wet mud material inlet and the weary conductance stream of sludge drying interface tube, and side wall upper part has mud upflow tube interface, and lower sidewall has separating at high temperature particle loopback interface tube, and the bottom has air outlet; The top of low moisture mud fluidization combustion unit (2) has the fume emission interface tube, and side wall upper part has the weary conductance stream of sludge drying interface tube, and lower sidewall has mud upflow tube interface, and the bottom has air outlet; The top of inertial separator (3) has the high-temperature flue gas discharge outlet, and sidewall has the fume emission interface tube, and the bottom has separating at high temperature particle loopback interface tube.
2. the double-fluidized-bed sludge drying combustion unit of integrated form according to claim 1, it is characterized in that, connect mud upflow tube (4) and the weary gas thrust-augmenting nozzle of sludge drying (5) between described high moisture sluge fluidization dewatering unit (1) and the low moisture mud fluidization combustion unit (2); Connect high-temperature flue gas vent pipe (6) between low moisture mud fluidization combustion unit (2) and the inertial separator (3); Connect separating at high temperature particle loopback pipe (7) between high moisture sluge fluidization dewatering unit (1) and the inertial separator (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100007171A CN103058487A (en) | 2013-01-05 | 2013-01-05 | Integrated double-fluidized-bed sludge drying combustion apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100007171A CN103058487A (en) | 2013-01-05 | 2013-01-05 | Integrated double-fluidized-bed sludge drying combustion apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884013A (en) * | 2014-03-26 | 2014-06-25 | 东方电气集团东方锅炉股份有限公司 | Combustion method and device of coupled environment-friendly fluidized bed boiler |
| CN114370642A (en) * | 2021-12-21 | 2022-04-19 | 光大环境科技（中国）有限公司 | Double fluidized bed sludge drying and incineration system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039519A (en) * | 2000-07-27 | 2002-02-06 | Mitsubishi Heavy Ind Ltd | External circulation type fluidized bed furnace and method for processing waste using the furnace |
| JP2006207947A (en) * | 2005-01-28 | 2006-08-10 | Ishikawajima Harima Heavy Ind Co Ltd | Combustion method and device for wet waste |
| CN201545774U (en) * | 2009-11-18 | 2010-08-11 | 轻工业环境保护研究所 | Sludge desiccation and incineration treatment device |
-
2013
- 2013-01-05 CN CN2013100007171A patent/CN103058487A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002039519A (en) * | 2000-07-27 | 2002-02-06 | Mitsubishi Heavy Ind Ltd | External circulation type fluidized bed furnace and method for processing waste using the furnace |
| JP2006207947A (en) * | 2005-01-28 | 2006-08-10 | Ishikawajima Harima Heavy Ind Co Ltd | Combustion method and device for wet waste |
| CN201545774U (en) * | 2009-11-18 | 2010-08-11 | 轻工业环境保护研究所 | Sludge desiccation and incineration treatment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103884013A (en) * | 2014-03-26 | 2014-06-25 | 东方电气集团东方锅炉股份有限公司 | Combustion method and device of coupled environment-friendly fluidized bed boiler |
| CN114370642A (en) * | 2021-12-21 | 2022-04-19 | 光大环境科技（中国）有限公司 | Double fluidized bed sludge drying and incineration system |
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Application publication date: 20130424 |