CN111237776A - Sludge drying and incinerating closed cycle device - Google Patents
Sludge drying and incinerating closed cycle device Download PDFInfo
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- CN111237776A CN111237776A CN202010018199.6A CN202010018199A CN111237776A CN 111237776 A CN111237776 A CN 111237776A CN 202010018199 A CN202010018199 A CN 202010018199A CN 111237776 A CN111237776 A CN 111237776A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/10—Supplementary heating arrangements using auxiliary fuel
- F23G2204/101—Supplementary heating arrangements using auxiliary fuel solid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/101—Baghouse type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/102—Intercepting solids by filters electrostatic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention provides a sludge drying and incinerating closed-loop circulating device which comprises a sludge incinerating device, a sludge drying closed-loop circulating device and a flue gas purifying device, wherein the sludge drying closed-loop circulating device comprises a dryer, a separator, a first electrostatic dust collector, a cooling and dehumidifying tower, a second induced draft fan and a heat exchanger which are sequentially connected together, the sludge incinerating device comprises an air blower, an incinerator and a high-temperature dust collector which are sequentially connected together, the flue gas purifying device comprises a second electrostatic dust collector, a bag-type dust collector, a desulfurizing tower, a first induced draft fan, a white removing device and a chimney which are sequentially connected together, and the high-temperature dust collector is connected with the second electrostatic dust collector through the heat exchanger. The closed circulation device for sludge drying and incineration has the advantages of reasonable structure, stable operation, high heat utilization rate, realization of zero gas emission by adopting closed circulation for sludge drying, solving of the problem of odor leakage during sludge drying, and improvement of environmental protection during operation.
Description
Technical Field
The invention relates to the field of sludge incineration treatment, in particular to a sludge drying and incinerating closed cycle device.
Background
In the sludge drying and incinerating process, sludge is dried firstly and then the sludge is incinerated, gas generated in the sludge drying process is generally directly discharged to the external environment, but the gas in the sludge drying process contains some bacterial particles and is accompanied with odor, the direct discharge can cause the surrounding air to be polluted, the sludge combustion process generally directly discharges the generated smoke directly into the air after the smoke is treated by the smoke purification device, so that the heat in the smoke can not be effectively utilized, and the energy is wasted.
Disclosure of Invention
The invention aims to provide a sludge drying and incinerating closed-loop circulating device, which solves one or more of the existing technical problems.
The invention provides a sludge drying and incinerating closed-loop circulating device which comprises a sludge incinerating device, a sludge drying closed-loop circulating device and a flue gas purifying device, wherein the sludge drying closed-loop circulating device comprises a dryer, a separator, a first electrostatic dust collector, a cooling and dehumidifying tower and a heat exchanger which are sequentially connected together, the heat exchanger is connected with the dryer, the separator, the first electrostatic dust collector and the heat exchanger are all connected with the sludge incinerating device, the heat exchanger is connected with the flue gas purifying device, and the flue gas purifying device is connected with the sludge incinerating device.
In certain embodiments, the dryer is coupled to a wet sludge feeder.
In some embodiments, the sludge incineration apparatus includes a blower connected to the incinerator, an incinerator connected to the dryer, a separator, and a first electrostatic precipitator, the incinerator connected to the high temperature precipitator, and the high temperature precipitator connected to the heat exchanger.
In certain embodiments, the incinerator and high temperature dust remover are both connected to an ash cooler.
In certain embodiments, a plate heat exchanger is provided between the heat exchanger and the flue gas cleaning device.
In some embodiments, the flue gas purification device comprises a dust removal device, a desulfurization tower, a de-whitening device and a first induced draft fan, the heat exchanger is connected with the dust removal device, the dust removal device is connected with the desulfurization tower, the desulfurization tower is connected with the de-whitening device through the first induced draft fan, the plate heat exchanger is connected with an air blower in the sludge incineration device through the de-whitening device, and the de-whitening device is connected with a chimney for smoke discharge.
In some embodiments, the dust removing device comprises a second electrostatic dust remover and a bag-type dust remover, the heat exchanger is connected with the second electrostatic dust remover, the second electrostatic dust remover is connected with the bag-type dust remover, and the bag-type dust remover is connected with the desulfurizing tower.
In certain embodiments, the cooling dehumidification tower is connected with a demister through a second induced draft fan, and the demister is connected with the heat exchanger.
In some embodiments, the cooling dehumidification tower is connected with a water circulation device, the water circulation device comprises a cooling component, a water-water heat exchanger, a first circulation pump and a second circulation pump, a first circulation pipe is arranged between a water inlet and a water outlet of the cooling dehumidification tower, the water-water heat exchanger is arranged on the first circulation pipe, the second circulation pump is arranged on the first circulation pipe between the water-water heat exchanger and the cooling dehumidification tower, the water-water heat exchanger is provided with a second circulation pipe, the first circulation pump and the cooling component are arranged on the second circulation pipe, and the cooling component comprises a water cooling tower and a condensate water tank.
The sludge drying and incinerating closed cycle device has the advantages that:
1. the structure is reasonable, the operation is stable, the utilization rate of energy is improved, and the environmental protection performance of the sludge drying and incinerating closed-loop circulating device during operation is ensured;
2. the air flow generated during the sludge drying separation can be recycled, and the outside air is not required to be introduced into the sludge drying closed-loop circulating device too much, so that the leakage probability of odor-containing gas generated by decomposition in the sludge drying process is effectively reduced, the pollution of pollutants generated during the drying separation to the external environment is reduced, meanwhile, the circulation ensures that the oxygen content is not increased in the drying process, and the possibility of deflagration of the sludge in the drying process is eliminated;
3. the heat in the flue gas generated by the incineration of the sludge incineration device is subjected to heat exchange with the air flow recycled during the anhydration separation by using the heat exchanger, so that the recycled air flow can be heated and then guided into the dryer to work, the utilization rate of the heat generated by the incineration of the sludge incineration device is effectively improved, the resource waste is avoided, meanwhile, the plate heat exchanger is added, so that the heat in the flue gas provides hot air for the whitening device, the hot air which is used for completing the function is circulated into the incinerator for utilization, the effective utilization rate of resources is further improved, and the running cost of the sludge anhydration incineration closed-loop circulation device can be reduced by 50% compared with the cost of an equivalent sludge anhydration incineration device;
4. after the heat exchange is finished, a flue gas purification device is arranged to purify flue gas generated by the sludge incineration device during incineration, so that the cleanliness of the flue gas is effectively ensured, and the influence of the flue gas on the surrounding environment is reduced;
5. the cooling and dehumidifying tower is connected with a closed water circulation device, so that the influence of the operation of the sludge drying and incinerating closed circulation device on the surrounding environment is further reduced.
Drawings
Fig. 1 is a schematic structural diagram of a sludge drying and incinerating closed-loop circulation device in one embodiment of the invention.
Detailed Description
As shown in figure 1, the invention provides a sludge drying and incinerating closed-loop circulating device, which comprises a sludge incinerating device, a sludge drying closed-loop circulating device, a plate heat exchanger 7 and a flue gas purifying device,
the sludge drying closed cycle device comprises a dryer 2, a separator 3, a first electrostatic dust collector 4, a cooling and dehumidifying tower 5 and a heat exchanger 8,
the sludge incineration device comprises a blower 601, an incinerator 602 and a high-temperature dust remover 603, the blower 601 is connected with the incinerator 602,
the flue gas purification device comprises a dust removal device, a desulfurizing tower 902, a de-whitening device 903 and a first induced draft fan 904, the dust removal device comprises a second electrostatic dust remover 905 and a bag-type dust remover 901,
the first feed inlet of the dryer 2 is connected with the wet sludge feeder 1, the first air outlet of the dryer 2 is connected with the second air inlet of the separator 3, the second air outlet of the separator 3 is connected with the third air inlet of the first electrostatic dust collector 4, the first discharge outlet of the dryer 2, the second discharge outlet of the separator 3 and the third discharge outlet of the first electrostatic dust collector 4 are connected with the incinerator 602, the third air outlet of the first electrostatic dust collector 4 is connected with the fourth air inlet of the cooling dehumidification tower 5, the fourth air outlet of the cooling dehumidification tower 5 is connected with the heat exchanger 8 through the second induced draft fan 12, a demister is arranged between the second induced draft fan 12 and the heat exchanger 8, the heat exchanger 8 is connected with the dryer 2, so that the cooled and dehumidified gas is applied to the dryer 2 again to form a closed sludge drying circulation device, wherein the separator 3 is a cyclone separator, the heat exchanger 8 adopts a high-temperature heat exchanger;
the cooling dehumidification tower 5 is connected with a water circulation device, the water circulation device comprises a cooling component, a water-water heat exchanger 113, a first circulating pump 114 and a second circulating pump 115, a first circulating pipe is arranged between a water inlet and a water outlet of the cooling dehumidification tower 5, the water-water heat exchanger 113 is arranged on the first circulating pipe, the second circulating pump 115 is arranged on the first circulating pipe between the water-water heat exchanger 113 and the cooling dehumidification tower 5, the water-water heat exchanger 113 is provided with a second circulating pipe, the first circulating pump 114 and the cooling component are arranged on the second circulating pipe, the cooling component is composed of a water cooling tower 111 and a water condensation tank 112, wherein the first circulating pump 114 is a clear water circulating pump, clear water in the water condensation tank 112 is introduced into the water-water heat exchanger 113 to exchange heat with the condensed water, the temperature of the condensed water is reduced, and meanwhile, the clear water after heat exchange is guided by the first circulating pump to, then returning to the condensation tank again; the cooled condensed water is guided into the cooling and dehumidifying tower 5 under the action of the second circulating pump 115 to cool the gas introduced into the cooling and dehumidifying tower 5, and the cooled condensed water enters the water-water heat exchanger 113 under the guide of the circulation body through a pipeline to exchange heat so as to be conveniently recycled;
the incinerator 602 and the high-temperature dust remover 603 are both connected with an ash cooler 604, an air blower 601 is arranged on the incinerator 602, gas containing oxygen is provided for the incinerator 602 through the air blower 601, the incinerator 602 is connected with the high-temperature dust remover 603, the high-temperature dust remover 603 is connected with the plate heat exchanger 7 through a heat exchanger 8, the plate heat exchanger 7 is connected with a second electrostatic dust remover 905, an auxiliary air inlet and an auxiliary air outlet are arranged on the plate heat exchanger 7, outside air is introduced through the auxiliary air inlet, the auxiliary air outlet is connected with a de-whitening device 903, the heat exchanger 8 exchanges heat with the gas entering the heat exchanger 8 through a second induced draft fan 12 by utilizing the heat contained in the flue gas discharged by the high-temperature dust remover 603, then the flue gas is introduced into the plate heat exchanger 7, then the flue gas is introduced into the second electrostatic dust remover 905 through the plate heat exchanger 7, and, the plate heat exchanger 7 is used for further utilizing heat contained in the flue gas, the heat acts on air to generate hot air, the hot air is discharged into the de-whitening device 903 through the auxiliary air outlet to provide the required hot air for the de-whitening device 903, wherein the de-pinning of the incinerator 602 is performed by adopting SNCR;
the second electrostatic dust collector 905 is connected with a bag-type dust collector 901, the bag-type dust collector 901 is connected with a desulfurizing tower 902, the desulfurizing tower 902 is connected with a de-whitening device 903 through a first induced draft fan 904, the de-whitening device 903 is connected with an air blower 601, hot air heated by a plate heat exchanger 7 and supplied to the de-whitening device 903 is further guided into an incinerator 602 through the air blower 601, and the residual heat in the air is further utilized while the oxygen-containing gas is not supplied to the incinerator 6; the de-whitening device 903 is connected with a chimney 10 for smoke discharge, and the smoke which is de-whitened and reaches the standard is discharged through the chimney 10 by the de-whitening device 903.
The sludge drying and incinerating closed cycle device comprises two functions of sludge drying treatment and sludge incinerating treatment, and the specific treatment process is as follows:
sludge incineration treatment: the incinerator 602 is ignited by natural gas, biomass is used as auxiliary fuel to heat to 850-. The flue gas is removed in an incinerator 602, the ash residue after high-temperature incineration is separated by a high-temperature dust remover 603, then the flue gas with the temperature of 850-,
the plate heat exchanger 7 exchanges heat with introduced air by using flue gas subjected to high-temperature dust removal, so that the introduced air is heated to 150 ℃, the air heated to 150 ℃ is introduced into a de-whitening device 903 through a rear air blower 601, the desulfurized flue gas is heated to more than 100 ℃ to achieve a de-whitening effect, and the air subjected to de-whitening at 90-100 ℃ is introduced into the incinerator 602 under the action of the air blower 601 to form heat recycling;
sludge drying treatment: in a heat exchanger 8, utilizing 850-900 ℃ high-temperature flue gas which is generated by an incinerator 602 and treated by a high-temperature dust remover 603, heating the gas in a sludge drying closed-loop circulating device to 500-550 ℃ to be used as a sludge drying medium, then placing a second induced draft fan 12 to introduce the 500-550 ℃ gas into a rotary boiling dryer 2 (wet sludge is transported to a sludge storage workshop by a special storage and transportation vehicle, then is transported to a wet sludge feeder 1 by a grab bucket, and then is transported into the dryer 2 by a double helix for heat and mass transfer), and reducing the temperature of the gas to 150 ℃; after the sludge is dried and graded to reach the standard, gas-solid separation is carried out on the dry sludge through a separator 3, the temperature of gas is reduced to 90-120 ℃, then 10% of fine dust is separated and trapped through a first electrostatic dust collector 4, the temperature of the gas is reduced to 85-95 ℃, then evaporated moisture in the sludge is condensed through a cooling and dehumidifying tower 5, then the gas is demisted through a demister, the temperature of the demisted gas is reduced to 35-45 ℃, and then the gas reduced to 35-45 ℃ is introduced into a heat exchanger 8 again to exchange heat to 500-550 ℃ for recycling.
The foregoing is only a preferred form of the invention and it should be noted that several similar variations and modifications could be made by one skilled in the art without departing from the inventive concept and these should also be considered within the scope of the invention.
Claims (9)
1. The utility model provides a sludge drying burns closed cycle device, a serial communication port, including sludge incineration device, sludge drying closed cycle device and flue gas purification device, including desiccator (2) that link together in proper order among the sludge drying closed cycle device, separator (3), first electrostatic precipitator (4), cooling dehumidification tower (5), heat exchanger (8), and heat exchanger (8) are connected with desiccator (2), separator (3), first electrostatic precipitator (4) and heat exchanger (8) all link to each other with sludge incineration device, heat exchanger (8) link to each other with flue gas purification device, flue gas purification device is connected with sludge incineration device.
2. The sludge drying incineration closed cycle device according to claim 1, wherein the dryer (2) is connected with a wet sludge feeder (1).
3. The sludge drying incineration closed-loop circulation device according to claim 1, wherein the sludge incineration device comprises a blower (601), an incinerator (602) and a high-temperature dust remover (603), the blower (601) is connected with the incinerator (602), the dryer (2), the separator (3) and the first electrostatic dust remover (4) are connected with the incinerator (602), the incinerator (602) is connected with the high-temperature dust remover (603), and the high-temperature dust remover (603) is connected with the heat exchanger (8).
4. The sludge drying incineration closed cycle apparatus according to claim 3, wherein the incinerator (602) and the high temperature dust remover (603) are connected to an ash cooler (604).
5. The sludge drying incineration closed cycle device according to claim 1, wherein a plate heat exchanger (7) is arranged between the heat exchanger (8) and the flue gas purification device.
6. The sludge drying and incinerating closed-loop circulating device according to claim 5, wherein the flue gas purification device comprises a dust removal device, a desulfurizing tower (902), a de-whitening device (903) and a first induced draft fan (904), the heat exchanger (8) is connected with the dust removal device, the dust removal device is connected with the desulfurizing tower (902), the desulfurizing tower (902) is connected with the de-whitening device (903) through the first induced draft fan (904), the plate heat exchanger (7) is connected with an air blower (601) in the sludge incinerating device through the de-whitening device (903), and the de-whitening device (903) is connected with a chimney (10) for smoke exhaust.
7. The sludge drying incineration closed-loop circulation device according to claim 6, wherein the dust removal device comprises a second electrostatic dust collector (905) and a bag-type dust collector (901), the heat exchanger (8) is connected with the second electrostatic dust collector (905), the second electrostatic dust collector (905) is connected with the bag-type dust collector (901), and the bag-type dust collector (901) is connected with the desulfurizing tower (902).
8. The closed cycle device for sludge drying and incineration as claimed in claim 1, wherein the cooling and dehumidifying tower (5) is connected with a demister through a second induced draft fan (12), and the demister is connected with the heat exchanger (8).
9. The sludge drying and incinerating closed-loop circulating device according to claim 1 or 8, wherein the cooling and dehumidifying tower (5) is connected with a water circulating device, the water circulating device comprises a cooling component, a water-water heat exchanger (113), a first circulating pump (114) and a second circulating pump (115), a first circulating pipe is arranged between a water inlet and a water outlet of the cooling and dehumidifying tower (5), the water-water heat exchanger (113) is arranged on the first circulating pipe, the second circulating pump (115) is arranged on the first circulating pipe between the water-water heat exchanger (113) and the cooling and dehumidifying tower (5), the water-water heat exchanger (113) is provided with a second circulating pipe, the first circulating pump (114) and the cooling component are arranged on the second circulating pipe, and the cooling component is composed of a water cooling tower (111) and a condensate water pool (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018199.6A CN111237776A (en) | 2020-01-08 | 2020-01-08 | Sludge drying and incinerating closed cycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010018199.6A CN111237776A (en) | 2020-01-08 | 2020-01-08 | Sludge drying and incinerating closed cycle device |
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| Publication Number | Publication Date |
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| CN111237776A true CN111237776A (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010018199.6A Pending CN111237776A (en) | 2020-01-08 | 2020-01-08 | Sludge drying and incinerating closed cycle device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111678152A (en) * | 2020-06-29 | 2020-09-18 | 山东龙之源节能环保科技有限公司 | Indirect sludge drying and incinerating system and drying and incinerating method thereof |
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2020
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