CN203048756U - Integrated type dual-fluidized bed sludge drying combustion device - Google Patents
Integrated type dual-fluidized bed sludge drying combustion device Download PDFInfo
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- CN203048756U CN203048756U CN 201320001445 CN201320001445U CN203048756U CN 203048756 U CN203048756 U CN 203048756U CN 201320001445 CN201320001445 CN 201320001445 CN 201320001445 U CN201320001445 U CN 201320001445U CN 203048756 U CN203048756 U CN 203048756U
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- Prior art keywords
- sludge
- fluidization
- mud
- moisture
- sludge drying
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- 239000010802 sludge Substances 0.000 title claims abstract description 59
- 238000001035 drying Methods 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 31
- 238000005243 fluidization Methods 0.000 claims abstract description 45
- 239000002245 particle Substances 0.000 claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 9
- 239000003517 fume Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 5
- 238000002203 pretreatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses an integrated type dual-fluidized bed sludge drying combustion device. The integrated type dual-fluidized bed sludge drying combustion device comprises a high-moisture sludge fluidization dehydrating device, a low-moisture sludge fluidization combustion device and an inertia separator, wherein a sludge overflow tube and a sludge drying exhaust steam guide tube are connected between the high-moisture sludge fluidization dehydrating device and the low-moisture sludge fluidization combustion device; a high-temperature flue gas exhaust tube is connected between the low-moisture sludge fluidization combustion device and the inertia separator; and a high-temperature separated particle return tube is connected between the high-moisture sludge fluidization dehydrating device and the inertia separator. According to the integrated type dual-fluidized bed sludge drying combustion device, heat of high-temperature small particles generated by sludge incineration is directly used for wet sludge drying, organic gas generated in the drying process enters the upper part of an incinerator, and the dried sludge enters the lower part of the incinerator, so that the temperature of the sludge is ensured for ignition and combustion; when the heat value of the sludge is sufficiently utilized, so that the toxic and harmful gas is treated at the high temperature, and the pollutant discharge is enabled to reach the standards, and therefore, the resources are sufficiently utilized.
Description
Technical field
The utility model relates to the energy and environment field, relates in particular to the double-fluidized-bed sludge drying combustion unit of a kind of integrated form.
Background technology
At present, burning is to handle the highly effective method of waste, and for mud, burning can maximize and reach minimizing, innoxious and resource utilization.Fluidized-bed sludge incineration is a kind of method of typical processing sludge incineration, 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 big, and the technical process complexity, disconnect, be 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, though 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 needs consumes energy; System is many, and a procedure becomes 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 collection sludge drying and burning are one, the high temperature small-particle direct heating dewatered sludge that utilizes sludge incineration to produce.Rational in infrastructure, operation is simple, reaches taking full advantage of of resource simultaneously, and the consumes energy cost is little, also is convenient to control and operation.
Summary of the invention
The purpose of this utility model is at the deficiency in sludge drying and the burning process, provides a kind of integrated form double-fluidized-bed sludge drying combustion unit.
The purpose of this utility model is achieved through the following technical solutions: the double-fluidized-bed sludge drying combustion unit of a kind of integrated form, and it comprises high-moisture mud fluidization dewatering unit, low moisture mud fluidization combustion unit and inertial separator; Wherein, high-moisture mud 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 high temperature separating particles 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 high temperature separating particles loopback interface tube; Connect the weary gas thrust-augmenting nozzle of mud upflow tube and sludge drying between described high-moisture mud 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 high temperature separating particles loopback pipe between high-moisture mud fluidization dewatering unit and the inertial separator.
The beneficial effects of the utility model are: the double-fluidized-bed sludge anhydration burning device of the utility model integrated form, and equipment is simple, and total system does not have mechanical component, is convenient to 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; Utilize the wet mud of high temperature small-particle direct heating mummification of sludge incineration generation, reach the maximum utilizationization of resource; Reduce facility investment and the energy, manpower consumption; The sludge stream fluidized-bed incineration is stable, the temperature height, evenly.
Description of drawings
Fig. 1 is schematic process flow diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
Among the figure, high-moisture mud 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, high temperature separating particles 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 the utility model integrated form comprises high-moisture mud fluidization dewatering unit 1, low moisture mud fluidization combustion unit 2 and inertial separator 3; wherein; high-moisture mud 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 high temperature separating particles 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 high temperature separating particles loopback interface tube.
Connect the weary gas thrust-augmenting nozzle 5 of mud upflow tube 4 and sludge drying between high-moisture mud 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 high temperature separating particles loopback pipe 7 between high-moisture mud fluidization dewatering unit 1 and the inertial separator 3.Described high-moisture mud fluidization dewatering unit 1 and low moisture mud fluidization combustion unit 2 are fluidized-bed structure.
Working process of the present utility model is as follows: the mud that will wet is sent into high-moisture mud fluidization desiccation apparatus 1 from the wet mud material inlet at high-moisture mud fluidization desiccation apparatus 1 top, and the air outlet in high-moisture mud fluidization desiccation apparatus 1 bottom feeds dry wind, wet mud carries out the fluidisation mummification in high-moisture mud 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 feeds wind of burning simultaneously, and the sludge stream fluidized-bed incineration is stable, the temperature height, 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 total system does not have mechanical component, is convenient to 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 bigger remains, and send into 1 pair of wet mud of high-moisture mud fluidization desiccation apparatus by a high temperature separation loopback pipe 7 and carry out the fluidisation mummification, utilize the wet mud of high temperature small-particle direct heating mummification of sludge incineration generation, reach the maximum utilizationization 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 utility model 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 utility model does not need auxiliary fuel, can guarantee the steady running of system, and temperature is at 850 ℃ in the incinerator, and mud reaches more than 90% through subtracting capacity behind the anhydration and incineration.
Claims (1)
1. the double-fluidized-bed sludge drying combustion unit of integrated form is characterized in that, it comprises high-moisture mud fluidization dewatering unit (1), low moisture mud fluidization combustion unit (2) and inertial separator (3); Wherein, high-moisture mud 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 high temperature separating particles 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 high temperature separating particles loopback interface tube; Connect the weary gas thrust-augmenting nozzle (5) of mud upflow tube (4) and sludge drying between described high-moisture mud 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 high temperature separating particles loopback pipe (7) between high-moisture mud fluidization dewatering unit (1) and the inertial separator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001445 CN203048756U (en) | 2013-01-05 | 2013-01-05 | Integrated type dual-fluidized bed sludge drying combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320001445 CN203048756U (en) | 2013-01-05 | 2013-01-05 | Integrated type dual-fluidized bed sludge drying combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203048756U true CN203048756U (en) | 2013-07-10 |
Family
ID=48731733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320001445 Expired - Lifetime CN203048756U (en) | 2013-01-05 | 2013-01-05 | Integrated type dual-fluidized bed sludge drying combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203048756U (en) |
-
2013
- 2013-01-05 CN CN 201320001445 patent/CN203048756U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |