CN221500886U - Sludge drying and incinerating system - Google Patents
Sludge drying and incinerating system Download PDFInfo
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- CN221500886U CN221500886U CN202323326982.7U CN202323326982U CN221500886U CN 221500886 U CN221500886 U CN 221500886U CN 202323326982 U CN202323326982 U CN 202323326982U CN 221500886 U CN221500886 U CN 221500886U
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- 239000010802 sludge Substances 0.000 title claims abstract description 91
- 238000001035 drying Methods 0.000 title claims abstract description 50
- 238000005243 fluidization Methods 0.000 claims abstract description 66
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000003546 flue gas Substances 0.000 claims abstract description 55
- 239000000428 dust Substances 0.000 claims abstract description 53
- 238000002485 combustion reaction Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 4
- 238000006303 photolysis reaction Methods 0.000 claims description 3
- 230000015843 photosynthesis, light reaction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 15
- 239000004744 fabric Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 239000010881 fly ash Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000000630 rising effect Effects 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a sludge drying and incinerating system, which comprises a sludge bin, wherein the sludge bin is communicated with a drying furnace, and the drying furnace comprises a primary fluidization machine, a dryer and a lifting channel for connecting the primary fluidization machine and the dryer; the first-stage fluidization machine is communicated with the bottom end of the first pipeline, the flue gas recirculation fan is arranged on the first pipeline, the flue gas recirculation fan inputs first-stage fluidization wind into the first-stage fluidization machine, and the top end of the first pipeline is communicated with the middle part of the seventh pipeline; the dryer is communicated with an exhaust port of the incinerator, and a cyclone separator is arranged between the dryer and the incinerator; the outlet of the top end of the drying furnace is communicated with one side of a bag-type dust remover, the other side of the bag-type dust remover is communicated with one end of an environment-friendly device, and the other end of the environment-friendly device is communicated with an induced draft fan through a seventh pipeline; the bottom outlet of the bag-type dust remover is communicated with the feed inlet of the incinerator; the system can realize the cyclic utilization of heat energy in the sludge drying and incinerating process, is environment-friendly and energy-saving, and reduces the operation cost.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment, and particularly relates to a high-efficiency clean sludge drying and incinerating system.
Background
At present, the requirements of China on harmless disposal rate of municipal domestic sludge are higher and higher, although the promotion of cement kiln cooperative incineration and domestic garbage cooperative incineration treatment of sludge is promoted, the problems of increasing the coking rate of an original incineration system, aggravating the treatment load of smoke pollutants and the like caused by traditional cooperative sludge drying incineration are solved in the face of sludge treatment projects with smaller treatment capacity, and the heat energy of the traditional conventional sludge drying incineration integral system cannot be reasonably and effectively utilized, so that the operation management cost is increased.
Disclosure of utility model
The utility model aims to provide a sludge drying and incinerating system which is convenient for drying and incinerating small batches of sludge and realizes the recycling of heat energy in the sludge drying and incinerating process so as to reduce the operation management cost.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
The sludge drying and incinerating system comprises a sludge bin, wherein the sludge bin is communicated with a drying furnace, and the drying furnace comprises a primary fluidization machine, a dryer and a lifting channel for connecting the primary fluidization machine and the dryer; the first-stage fluidization machine is communicated with the bottom end of the first pipeline, the flue gas recirculation fan is arranged on the first pipeline, the flue gas recirculation fan inputs first-stage fluidization wind into the first-stage fluidization machine, and the top end of the first pipeline is communicated with the middle part of the seventh pipeline; the dryer is communicated with an exhaust port of the incinerator, and a cyclone separator is arranged between the dryer and the incinerator; the outlet of the top end of the drying furnace is communicated with one side of a bag-type dust remover, the other side of the bag-type dust remover is communicated with one end of an environment-friendly device, and the other end of the environment-friendly device is communicated with an induced draft fan through a seventh pipeline; the bottom outlet of the bag-type dust collector is communicated with the feed inlet of the incinerator.
Further, a first spiral conveying device is arranged at the outlet of the sludge bin, one end of the first spiral conveying device is communicated with the sludge bin, and the other end of the first spiral conveying device is communicated with a wet sludge feeding hole on the primary fluidization machine.
Further, a primary fluidization air inlet is arranged at the bottom of the primary fluidization machine, and the position of a wet sludge feeding port on the primary fluidization machine is higher than that of the primary fluidization air inlet; the first-stage fluidization air inlet is communicated with the bottom end of the first pipeline, the flue gas recirculation fan is arranged on the first pipeline, and the top end of the first pipeline is communicated with the middle of the seventh pipeline.
Further, one side of the dryer is communicated with one end of a second pipeline, the other end of the second pipeline is communicated with an outlet at the upper part of the incinerator, and high-temperature flue gas generated by combustion of the incinerator enters the dryer through the second pipeline.
Further, the top outlet of the drying furnace is communicated with one end of a third pipeline, the other end of the third pipeline is communicated with one side of a bag-type dust remover, the other side of the bag-type dust remover is connected with a fourth pipeline, and the bottom outlet of the bag-type dust remover is connected with the top end of a fifth pipeline.
Further, a second spiral conveying device is arranged at the bottom outlet of the fifth pipeline, the second spiral conveying device and the first spiral conveying device have the same structure, one end of the second spiral conveying device is communicated with the bottom outlet of the fifth pipeline, the other end of the second spiral conveying device is communicated with the incinerator, and the second spiral conveying device conveys small granular sludge discharged from the bag-type dust collector into the incinerator for incineration.
Further, the left end of the fourth pipeline is communicated with the bag-type dust collector, the middle part of the fourth pipeline is communicated with the top end of a sixth pipeline, the bottom end of the sixth pipeline is communicated with a heat exchange device of a primary air system, the primary air system comprises the heat exchange device and a primary air fan, and the primary air fan is communicated with the incinerator; the right end of the fourth pipeline is communicated with the environment-friendly device.
Further, the environment-friendly device is a water scrubber, an alkaline scrubber or a UV photolysis waste gas purifying device.
Further, the environment-friendly device is communicated with the induced draft fan through a seventh pipeline, the left end of the seventh pipeline is communicated with the environment-friendly device, the middle of the seventh pipeline is communicated with the top end of the first pipeline, the bottom end of the first pipeline is communicated with the primary fluidization machine, and the right end of the seventh pipeline is communicated with the induced draft fan.
The beneficial effects of the utility model are as follows:
1. The utility model is suitable for small-scale sludge drying and incinerating projects with high water content, and the utility model utilizes fans with different functions to supplement air, thereby improving the drying and burning efficiency of sludge in a drying and burning system; according to the utility model, the primary fluidization air is conveyed into the primary fluidization machine through the flue gas recirculation fan, and is accelerated to 40m/s, so that wet sludge in the primary fluidization machine is in a fluidized bed state of high-speed operation, and the drying efficiency of the wet sludge is improved; according to the utility model, the primary air fan is used for conveying sufficient air required by fuel combustion into the incinerator, so that the small-particle sludge is fully combusted in the incinerator, the combustion efficiency of the small-particle sludge is improved, and the generation of harmful gases such as NO X、SOX in the combustion process can be fully reduced.
2. In the utility model, the small granular sludge captured by the bag-type dust collector is sent into the incinerator for combustion, on one hand, the sludge is fully treated, and on the other hand, the small granular sludge is used as fuel in the incinerator, and hot flue gas generated by the incinerator is used as secondary fluidization air for secondary fluidization and drying of the sludge, so that the recycling of the sludge and heat energy is realized, and the energy conservation and the environmental protection are realized.
3. In the utility model, the high-temperature hot flue gas at 150 ℃ discharged from the bag-type dust collector heats the air sucked by the primary air blower, and the heated air enters the incinerator for combustion, so that the combustion of the small granular sludge in the incinerator is more sufficient, the recycling of the high-temperature hot flue gas discharged from the bag-type dust collector is realized, the energy conservation is realized, and meanwhile, the generation of harmful gases such as NO X、SOX and the like in the combustion process can be reduced by the sufficient combustion of the small granular sludge, so that the system is more environment-friendly.
4. In the utility model, the flue gas exhausted from the environment-friendly device flows into the primary fluidization machine to be used as primary fluidization wind of wet sludge, so that the recycling of the flue gas exhausted from the environment-friendly device is realized, and the system is more energy-saving and environment-friendly.
5. The flue gas discharged from the drying furnace is discharged into the atmosphere after being purified by the cloth bag dust remover and the double layers of the environment-friendly device, thereby being beneficial to environmental protection.
6. The spiral conveying device disclosed by the utility model is not easy to harden when conveying wet sludge, has good conveying fly ash tightness, and can effectively reduce the dust concentration in the air; compared with conventional belt conveying and scraper conveying, the spiral conveying system can effectively prevent the problems of odor leakage, wet sludge sticking and conveying equipment and the like in the conveying process.
Drawings
Fig. 1 is a schematic overall view of the present utility model.
FIG. 2 is an enlarged view of a portion of the connection of the sludge silo of the present utility model to the kiln.
Wherein: a sludge bin 1; a drying furnace 2; a primary fluidizer 21; a rising channel 22; a dryer 23; an induced draft fan 3; a flue gas recirculation fan 4; a first screw conveyor 5; a first conduit 6; a second pipe 7; an incinerator 8; a third conduit 9; a bag-type dust collector 10; a fourth pipe 11; a fifth pipe 12; a cyclone 13, a sixth conduit 14; an environmental protection device 15; a heat exchange device 16; a primary air blower 17; seventh conduit 18.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
As shown in fig. 1, the sludge to be treated is located in a sludge bin 1, the sludge bin 1 is used for storing incoming sludge, an arch breaking device is arranged in the sludge bin 1, and the arch breaking device in the sludge bin 1 can effectively prevent the sludge from bridging or hardening in the bin so as to be blocked.
The drying furnace 2 comprises a primary fluidization machine 21, a rising channel 22 and a dryer 23, wherein the rising channel 22 is connected with the primary fluidization machine 21 and the dryer 23, the dryer 23 is positioned above the primary fluidization machine 21, and the dryer 23 is used for carrying out secondary fluidization drying on sludge; the bottom end of the rising channel 22 is communicated with the primary fluidization machine 21, and the top end of the rising channel 22 is communicated with the dryer 23.
The exit of mud feed bin 1 is provided with first screw conveyer 5, and first screw conveyer 5 one end and mud feed bin 1 intercommunication, the wet mud feed inlet intercommunication on the first screw conveyer 5 other end and the one-level fluidization machine 21 is interior with the wet mud of mud feed bin 1 through first screw conveyer 5 transport to one-level fluidization machine 21.
The bottom of the primary fluidization machine 21 is provided with a primary fluidization air inlet, and the position of a wet sludge feed inlet on the primary fluidization machine 21 is higher than that of the primary fluidization air inlet; the primary fluidization air inlet is communicated with the bottom end of the first pipeline 6, the flue gas recirculation fan 4 is arranged on the first pipeline 6, and the top end of the first pipeline 6 is communicated with the middle part of the seventh pipeline 18.
The flue gas recirculation fan 4 introduces primary fluidization air into the primary fluidization machine 21, the flue gas recirculation fan 4 increases the primary fluidization air to speed up to 40m/s, the primary fluidization air enters the primary fluidization machine 21 through the primary fluidization air inlet, wet sludge forms a fluidized bed state which runs at high speed in the primary fluidization machine 21 under the action of the primary fluidization air in the process of falling from the wet sludge feed inlet, and the primary fluidization air can effectively cut and break up the agglomerated sludge, so that the heat exchange area of the sludge is increased; the fluidized-bed sludge running at high speed enters the dryer 23 along the ascending channel 22 by the primary fluidization wind.
In the dryer 23, secondary fluidized drying of the sludge is achieved by feeding secondary fluidized air, which is 1000 ℃ high-temperature flue gas discharged from the incinerator 8, into the dryer 23.
One side of the dryer 23 is communicated with one end of the second pipeline 7, the other end of the second pipeline 7 is communicated with an outlet at the upper part of the incinerator 8, high-temperature flue gas generated by combustion of the incinerator enters the dryer 23 through the second pipeline 7, the 1000 ℃ high-temperature flue gas from the top of the incinerator 8 carries out secondary fluidized drying on the fluidized bed-state sludge in the dryer 23, and the sludge is thoroughly dried in the dryer 23 through high-temperature heat exchange, so that the sludge is formed into fine particles; the sludge which is formed into small particles in the dryer 23 is discharged along with the flue gas at the top outlet of the drying furnace 2; the top outlet of the drying furnace 2 is communicated with one end of a third pipeline 9, the other end of the third pipeline 9 is communicated with one side of a bag-type dust remover 10, a fourth pipeline 11 is connected to the other side of the bag-type dust remover 10, and the bottom outlet of the bag-type dust remover 10 is connected with the top end of a fifth pipeline 12.
The small-particle sludge and flue gas in the dryer 23 enter a cloth bag dust remover 10 along a third pipeline 9, the cloth bag dust remover is used for capturing the sludge particles discharged from the outlet of the top end of the drying furnace, a pulse soot blower can be arranged in the cloth bag dust remover 10, the small-particle sludge attached to the cloth bag is blown off, and the large-area attachment of the small-particle sludge to the cloth bag is prevented from causing the blockage of the cloth bag, so that the operation of a system induced draft fan is influenced; the sludge in the small particle state is discharged from the bottom outlet of the bag-type dust collector 10 along the fifth pipeline 12, a second spiral conveying device is arranged at the bottom outlet of the fifth pipeline 12, the second spiral conveying device and the first spiral conveying device 5 have the same structure, one end of the second spiral conveying device is communicated with the bottom outlet of the fifth pipeline 12, the other end of the second spiral conveying device is communicated with the incinerator 8, the second spiral conveying device conveys the small particle sludge discharged from the bag-type dust collector 10 into the incinerator 8 for incineration, and flue gas generated by the incineration of the small particle sludge in the incinerator 8 is conveyed from the second pipeline 7 into the dryer 23 to serve as secondary fluidization wind required by secondary fluidization and drying of the sludge.
The second pipeline 7 is provided with a cyclone separator 13, and high-temperature flue gas discharged from the incinerator 8 is purified by the cyclone separator 13 and then enters a dryer 23 to be used as secondary fluidization wind required by secondary fluidization drying of sludge; the cyclone separator 13 performs cyclone separation on the high-temperature hot flue gas, captures fly ash in the high-temperature hot flue gas, and prevents the fly ash from entering the dryer 23 to be coked.
When the high-temperature hot flue gas discharged from the incinerator 8 passes through the cyclone separator 13, the cyclone separator 13 separates out solid particles in the high-temperature hot flue gas, the solid particles separated by the cyclone separator 13 enter a dust hopper of the cyclone separator and are periodically recycled by workers, in the actual use process, a spiral conveying device can be arranged at an outlet of the dust hopper of the cyclone separator, the solid particles separated by the cyclone separator 13 are conveyed to a fly ash collecting device through the spiral conveying device, and the workers can periodically clean the fly ash collecting device; the high-temperature flue gas purified by the cyclone separator 13 enters the dryer 23 along the second pipeline 7 to be used as secondary fluidization wind required by secondary fluidization drying of the sludge.
The sludge and the flue gas with small particles in the dryer 23 enter the bag-type dust remover 10 along the third pipeline 9, the high-temperature flue gas purified by the bag-type dust remover 10 flows along the fourth pipeline 11, the left end of the fourth pipeline 11 is communicated with the bag-type dust remover 10, the middle part of the fourth pipeline 11 is communicated with the top end of the sixth pipeline 14, and the right end of the fourth pipeline 11 is communicated with the environment-friendly device; the temperature of the high-temperature flue gas purified by the bag-type dust collector 10 is about 150 ℃, and the high-temperature flue gas purified by the bag-type dust collector 10 flows into the sixth pipeline 14 along one part of the fourth pipeline 11, and flows into the environment-friendly device 15 along the other part.
The high-temperature hot flue gas purified by the bag-type dust collector 10 flows into the sixth pipeline 14 along the fourth pipeline 11, the bottom end of the sixth pipeline 14 is communicated with the heat exchange device 16 of the primary air system, the primary air system comprises the heat exchange device 16 and the primary air fan 17, the primary air fan 17 is communicated with the incinerator 8, and sufficient air required by combustion of fuel in the incinerator is conveyed into the incinerator 8 through the primary air fan 17, so that small-particle sludge is fully combusted in the incinerator 8 to reduce generation of harmful gases such as NO X、SOX and the like. The high-temperature flue gas flowing out of the bag-type dust collector 10 flows to a primary air system through a sixth pipeline 14, and the high-temperature flue gas flowing out of the bag-type dust collector 10 is mixed with primary air sucked by a primary air fan 17 through the primary air system. The energy of high-temperature hot flue gas flowing out of the bag-type dust collector 10 is recycled again by the primary air system through a waste heat utilization principle, the high-temperature hot flue gas flowing out of the bag-type dust collector 10 is mixed with primary air sucked by the primary air blower 17 through the heat exchange device 16, and then the primary air sucked by the primary air blower 17 is heated by the high-temperature hot flue gas flowing out of the bag-type dust collector 10, and the primary air is sent into the incinerator 8 after being heated, so that the combustion efficiency of small granular sludge in the incinerator 8 is improved; meanwhile, after the flue gas flowing out of the bag-type dust collector 10 is mixed with primary air sucked by the primary air blower 17, the primary air blower 17 is sent into the incinerator to burn, so that the gas exhausted from the bag-type dust collector 10 is recycled.
The high-temperature flue gas purified by the bag-type dust collector 10 flows into the environment-friendly device 15 along the fourth pipeline 11, the environment-friendly device 15 can be a water washing tower, an alkaline washing tower, or purifying equipment such as UV photolysis waste gas, the high-temperature flue gas discharged from the bag-type dust collector 10 contains ammonia gas, hydrogen sulfide and the like, the ammonia gas is dissolved in water, the hydrogen sulfide can react with alkaline liquid, therefore, after the high-temperature flue gas purified by the bag-type dust collector 10 flows into the environment-friendly device 15, the environment-friendly device 15 is purified again in the environment-friendly device 15, the environment-friendly device 15 is communicated with the induced draft fan 3 through a seventh pipeline 18, the left end of the seventh pipeline 18 is communicated with the environment-friendly device 15, the middle part of the seventh pipeline 18 is communicated with the top end of the first pipeline 6, the bottom end of the first pipeline 6 is communicated with the primary fluidizer 21, and the right end of the seventh pipeline 18 is communicated with the induced fan 3.
After the high-temperature flue gas purified by the bag-type dust collector 10 flows into the environment-friendly device 15, the flue gas is purified again in the environment-friendly device 15, a part of the flue gas discharged from the environment-friendly device 15 is discharged to the induced draft fan 3 along the seventh pipeline 18, and the other part of the flue gas discharged from the environment-friendly device 15 flows into the first pipeline 6 communicated with the middle part of the seventh pipeline 18.
In actual engineering, the exhaust port of the induced draft fan 3 is connected with a chimney, and the flue gas discharged from the environmental protection device 15 is discharged to the induced draft fan 3 along a seventh pipeline 18 and then is discharged from the chimney connected with the exhaust port of the induced draft fan; the induced draft fan 13 is used for exhausting air to form a system micro negative pressure, so that flame generated in the sludge burning process of the incinerator can be prevented from overflowing, and operators can be burned.
The gas discharged from the drying furnace 2 is firstly dedusted by a bag-type dust remover 10, and then purified by waste gas purifying equipment such as a water washing tower, an alkaline washing tower and the like which are included in an environment-friendly device 15, so that the flue gas discharged from the drying furnace 2 is purified and reaches the standard and then discharged.
The other part of the flue gas discharged from the environmental protection device 15 flows into the first pipeline 6 communicated with the middle part of the seventh pipeline 18, flows into the primary fluidization machine 21 along the first pipeline 6 to be used as primary fluidization wind of wet sludge, and realizes recycling of the flue gas discharged from the environmental protection device 15.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model and is not intended to limit the utility model, but rather the present utility model is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be readily apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The utility model provides a sludge drying burns system, includes mud feed bin (1), its characterized in that: the sludge bin (1) is communicated with the drying furnace (2), and the drying furnace (2) comprises a primary fluidization machine (21), a dryer (23) and a lifting channel (22) for connecting the primary fluidization machine (21) and the dryer (23); the first-stage fluidization machine (21) is communicated with the bottom end of the first pipeline (6), the flue gas recirculation fan (4) is arranged on the first pipeline (6), the flue gas recirculation fan (4) inputs first-stage fluidization wind into the first-stage fluidization machine (21), and the top end of the first pipeline (6) is communicated with the middle part of the seventh pipeline (18); the dryer (23) is communicated with an exhaust port of the incinerator (8), and a cyclone separator (13) is arranged between the dryer (23) and the incinerator (8); the top end outlet of the drying furnace (2) is communicated with one side of the bag-type dust remover (10), the other side of the bag-type dust remover (10) is communicated with one end of the environment-friendly device (15), and the other end of the environment-friendly device (15) is communicated with the induced draft fan (3) through a seventh pipeline (18); the bottom outlet of the bag-type dust collector (10) is communicated with the feed inlet of the incinerator (8).
2. A sludge drying incineration system according to claim 1, characterised in that: the outlet of the sludge bin (1) is provided with a first spiral conveying device (5), one end of the first spiral conveying device (5) is communicated with the sludge bin (1), and the other end of the first spiral conveying device is communicated with a wet sludge feeding hole on the primary fluidization machine (21).
3. A sludge drying incineration system according to claim 1, characterised in that: the bottom of the primary fluidization machine (21) is provided with a primary fluidization air inlet, and the position of a wet sludge feed inlet on the primary fluidization machine (21) is higher than that of the primary fluidization air inlet; the primary fluidization air inlet is communicated with the bottom end of the first pipeline (6), the flue gas recirculation fan (4) is arranged on the first pipeline (6), and the top end of the first pipeline (6) is communicated with the middle of the seventh pipeline (18).
4. A sludge drying incineration system according to claim 1, characterised in that: one side of the dryer (23) is communicated with one end of a second pipeline (7), the other end of the second pipeline (7) is communicated with an outlet at the upper part of the incinerator (8), and high-temperature flue gas generated by combustion of the incinerator enters the dryer (23) through the second pipeline (7).
5. A sludge drying incineration system according to claim 1, characterised in that: the top outlet of the drying furnace (2) is communicated with one end of a third pipeline (9), the other end of the third pipeline (9) is communicated with one side of a bag-type dust remover (10), a fourth pipeline (11) is connected to the other side of the bag-type dust remover (10), and the bottom outlet of the bag-type dust remover (10) is connected with the top end of a fifth pipeline (12).
6. A sludge drying incineration system according to claim 5, characterised in that: the bottom outlet of the fifth pipeline (12) is provided with a second spiral conveying device, the second spiral conveying device and the first spiral conveying device (5) have the same structure, one end of the second spiral conveying device is communicated with the bottom outlet of the fifth pipeline (12), the other end of the second spiral conveying device is communicated with the incinerator (8), and the second spiral conveying device conveys small granular sludge discharged from the bag-type dust collector (10) into the incinerator (8) for incineration.
7. A sludge drying incineration system according to claim 5, characterised in that: the left end of the fourth pipeline (11) is communicated with the bag-type dust collector (10), the middle part of the fourth pipeline (11) is communicated with the top end of the sixth pipeline (14), the bottom end of the sixth pipeline (14) is communicated with a heat exchange device (16) of a primary air system, the primary air system comprises the heat exchange device (16) and a primary air fan (17), and the primary air fan (17) is communicated with the incinerator (8); the right end of the fourth pipeline (11) is communicated with the environment-friendly device (15).
8. A sludge drying incineration system according to claim 1, characterised in that: the environment-friendly device (15) is a water scrubber, an alkaline scrubber or a UV photolysis waste gas purifying device.
9. A sludge drying incineration system according to claim 1, characterised in that: the environment-friendly device (15) is communicated with the induced draft fan (3) through a seventh pipeline (18), the left end of the seventh pipeline (18) is communicated with the environment-friendly device (15), the middle of the seventh pipeline (18) is communicated with the top end of the first pipeline (6), the bottom end of the first pipeline (6) is communicated with the primary fluidization machine (21), and the right end of the seventh pipeline (18) is communicated with the induced draft fan (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323326982.7U CN221500886U (en) | 2023-12-07 | 2023-12-07 | Sludge drying and incinerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323326982.7U CN221500886U (en) | 2023-12-07 | 2023-12-07 | Sludge drying and incinerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221500886U true CN221500886U (en) | 2024-08-09 |
Family
ID=92142384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323326982.7U Active CN221500886U (en) | 2023-12-07 | 2023-12-07 | Sludge drying and incinerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221500886U (en) |
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2023
- 2023-12-07 CN CN202323326982.7U patent/CN221500886U/en active Active
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