CN110845115A - Municipal sludge dewatering mummification incineration disposal integration system - Google Patents
Municipal sludge dewatering mummification incineration disposal integration system Download PDFInfo
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- CN110845115A CN110845115A CN201911215599.XA CN201911215599A CN110845115A CN 110845115 A CN110845115 A CN 110845115A CN 201911215599 A CN201911215599 A CN 201911215599A CN 110845115 A CN110845115 A CN 110845115A
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- drying
- sludge
- dewatering
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- 239000010802 sludge Substances 0.000 title claims abstract description 78
- 230000010354 integration Effects 0.000 title claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 50
- 238000009833 condensation Methods 0.000 claims abstract description 14
- 230000005494 condensation Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007790 solid phase Substances 0.000 claims abstract description 11
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- 230000018044 dehydration Effects 0.000 claims abstract description 7
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000007791 liquid phase Substances 0.000 claims abstract description 4
- 239000012071 phase Substances 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000004332 deodorization Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000029087 digestion Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- -1 bacterial bodies Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000011899 heat drying method Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The utility model provides a municipal administration sludge dewatering mummification incineration disposal integration system which characterized in that: the sludge dewatering and drying integrated machine comprises a sludge concentration tank (1), wherein the output end of the sludge concentration tank (1) is connected to a centrifugal dewatering and drying integrated machine (2), the liquid-phase outlet end of the centrifugal dewatering and drying integrated machine (2) is connected to a filtrate tank (4), and the solid-phase outlet end of the centrifugal dewatering and drying integrated machine is connected to a cyclone separator (5); the gas phase outlet end of cyclone (5) is connected to circulating fan (6), dry powder helical channel (7) are connected to the solid phase outlet end of cyclone (5), the output of circulating fan (6) is connected to venturi condensation scrubber (9) and dry media blender (10), the output of filtrate pond (4) is connected to the shower water input of venturi condensation scrubber (9), dry media blender (10) are connected to centrifugal dehydration drying all-in-one machine (2). The invention realizes the maximum reduction of the sludge, carries out drying and incineration treatment on the sludge, avoids secondary pollution of the sludge to the environment and realizes harmless and resource utilization of the sludge.
Description
Technical Field
The invention belongs to the technical field of environmental protection, and particularly relates to a municipal sludge dewatering, drying and incinerating integrated system which is used for reducing and harmlessly treating municipal sludge and protecting the environment.
Background
With the rapid development of national economy, the industrialization process of China is also accelerated, but as the industrial structure of China belongs to a rough production mode, the economic development is caused while expensive environmental cost is paid. Especially, the degree of urbanization is continuously improved, the treatment capacity, the treatment rate and the treatment degree of sewage in cities are continuously improved, and the yield of sludge generated by urban sewage treatment is greatly increased, wherein the yield of municipal sludge is increased particularly rapidly. Municipal sludge is an extremely complex heterogeneous body consisting of organic fragments, bacterial bodies, inorganic particles, colloids and the like, and contains a large amount of water, refractory organic matters, heavy metals, salts, pathogen microorganisms, parasitic ova and the like, and the random discharge and stacking of a large amount of untreated sludge can cause more serious secondary pollution to the environment.
At present, municipal sludge is treated by landfill, so that a large amount of precious land resources are occupied, and the sludge contains a large amount of harmful substances, which easily causes secondary pollution to land and underground water resources; on the other hand, the municipal sludge also has certain organic matters and heat value, belongs to a resource capable of being recycled, and is wasted due to the fact that the resource is directly buried.
Disclosure of Invention
The invention aims to provide a municipal sludge dewatering, drying and incinerating integrated system aiming at the defect that the existing municipal sludge is easy to cause secondary pollution to the environment by adopting direct landfill, and the municipal sludge dewatering, drying and incinerating integrated system is used for carrying out centrifugal dewatering, drying and incinerating treatment on the municipal sludge, so that the municipal sludge is harmless, and the pollution of the municipal sludge to the environment is avoided.
Technical scheme
In order to achieve the technical purpose, the invention provides a municipal sludge dewatering, drying and incinerating treatment integrated system which is characterized in that: the sludge dewatering and drying integrated machine comprises a sludge concentration tank, wherein the output end of the sludge concentration tank is connected to a centrifugal dewatering and drying integrated machine, a sludge feeding pump is arranged on a connecting pipeline of the sludge concentration tank and the centrifugal dewatering and drying integrated machine, the liquid-phase outlet end of the centrifugal dewatering and drying integrated machine is connected to a filtrate tank, and the solid-phase outlet end of the centrifugal dewatering and drying integrated machine is connected to a cyclone separator; the gas phase outlet end of cyclone is connected to circulating fan, dry powder helical channel is connected to cyclone's solid phase outlet end to utilize dry powder helical channel to transport the solid phase thing to the rotary kiln, circulating fan's output is connected to venturi condensation scrubber and dry media mixer, the output in filtrate pond is connected to venturi condensation scrubber's spray water input, venturi condensation scrubber's gas output end is connected to the exhaust-gas fan, the output of exhaust-gas fan is connected to the chimney, venturi condensation scrubber's liquid output returns water processing system, dry media mixer is connected to the dry all-in-one of centrifugal dehydration.
Furthermore, a deodorization device is arranged on a connecting pipeline of the waste gas fan and the chimney.
Furthermore, the input end of the rotary kiln is provided with a hot blast stove, the output end of the rotary kiln is provided with a second combustion chamber, and the second combustion chamber is connected to the drying medium mixer.
Advantageous effects
According to the municipal sludge dewatering, drying and incinerating integrated system provided by the invention, the anaerobic digestion process of sludge is utilized to reduce the residual sludge, the volume can be reduced by 75-80%, the maximum reduction of sludge is realized, the sludge drying cost is reduced, meanwhile, the sludge drying and incinerating treatment is carried out, the secondary pollution of sludge to the environment is avoided, and the harmless and resource utilization of sludge is realized.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further explained below with reference to the figures and examples.
Examples
As shown in the attached drawing 1, the municipal sludge dewatering, drying and incinerating integrated system comprises a sludge concentration tank 1, wherein the output end of the sludge concentration tank 1 is connected to a centrifugal dewatering and drying integrated machine 2, a sludge feeding pump 3 is arranged on a connecting pipeline of the sludge concentration tank 1 and the centrifugal dewatering and drying integrated machine 2, the liquid phase outlet end of the centrifugal dewatering and drying integrated machine 2 is connected to a filtrate tank 4, and the solid phase outlet end of the centrifugal dewatering and drying integrated machine 2 is connected to a cyclone separator 5; the gas phase outlet end of the cyclone separator 5 is connected to a circulating fan 6, the solid phase outlet end of the cyclone separator 5 is connected with a dry powder spiral channel 7, solid phase objects are conveyed to a rotary kiln 8 by utilizing the dry powder spiral channel 7, the output end of the circulating fan 6 is connected to a Venturi condensation scrubber 9 and a dry medium mixer 10, the output end of the filtrate tank 4 is connected to the spray water input end of the Venturi condensation scrubber 9, the gas output end of the Venturi condensation scrubber 9 is connected to a waste gas fan 11, the output end of the waste gas fan 11 is connected to a chimney 12, and a deodorizing device 13 is arranged on a connecting pipeline of the waste gas fan 11 and the chimney 12. The liquid output end of the Venturi condensation scrubber 9 returns to the water treatment system, and the drying medium mixer 10 is connected to the centrifugal dehydration and drying all-in-one machine 2. The input end of the rotary kiln 8 is provided with a hot blast stove 14, the output end is provided with a second combustion chamber 15, and the second combustion chamber 15 is connected to the drying medium mixer 10.
According to the invention, the anaerobic digestion process of sludge is utilized to carry out the first-step reduction on the excess sludge, and organic matters in the municipal sludge are fully utilized to generate usable biogas, so that the dehydration property of the subsequent sludge is improved; the generated methane is used as a heat source for sludge heat drying incineration, so that the defect of high sludge drying cost can be greatly overcome; and secondly, a sludge dewatering and drying integrated machine is adopted as equipment for further and greatly reducing the sludge, and the mechanical dewatering and heat drying technologies of the sludge are organically combined together. The mechanical dehydration of the sludge is to separate the absorbed water and capillary water in the sludge by adopting high-efficiency centrifugal dehydration, and simultaneously disperse the dehydrated sludge cake into sludge particles with larger specific surface area by combining a special structure with strong centrifugal force action. The heat drying of the sludge is to dry the sludge by utilizing heat energy, reduce the water content of the sludge, kill pathogens and parasites by utilizing the high-temperature sterilization effect, accelerate the drying of the sludge, avoid the secondary pollution of the sludge to the environment and realize the harmless and resource utilization of the sludge. Because of adopting the contact type heat drying method with higher heat transfer efficiency and granulating the sludge, the drying efficiency of the technology is higher, and compared with other heat drying modes, the technology saves more energy. Meanwhile, the volume reduction of the dried sludge is particularly obvious, the volume can be reduced by 75-80%, and the maximum reduction of the sludge is realized; the filtrate after centrifugal sedimentation is used as water for cooling and dust removal, so that the temperature of the product and the waste gas is reduced to be below a specified range, and the consumption of tap water is saved; finally, the heat carried by the cooled waste water can also provide temperature guarantee required by the process for the digestion process, and the waste heat is fully utilized.
Claims (4)
1. The utility model provides a municipal administration sludge dewatering mummification incineration disposal integration system which characterized in that: the sludge dewatering and drying integrated machine comprises a sludge concentration tank (1), wherein the output end of the sludge concentration tank (1) is connected to a centrifugal dewatering and drying integrated machine (2), a sludge feeding pump (3) is arranged on a connecting pipeline of the sludge concentration tank (1) and the centrifugal dewatering and drying integrated machine (2), the liquid-phase outlet end of the centrifugal dewatering and drying integrated machine (2) is connected to a filtrate tank (4), and the solid-phase outlet end of the centrifugal dewatering and drying integrated machine is connected to a cyclone separator (5); the gas phase outlet end of the cyclone separator (5) is connected to a circulating fan (6), the solid phase outlet end of the cyclone separator (5) is connected with a dry powder spiral channel (7), and the solid phase is transported to a rotary kiln (8) by a dry powder spiral channel (7), the output end of the circulating fan (6) is connected to a Venturi condensation scrubber (9) and a dry medium mixer (10), the output end of the filtrate tank (4) is connected to the spray water input end of the Venturi condensation scrubber (9), the gas output end of the Venturi condensation scrubber (9) is connected to a waste gas fan (11), the output end of the waste gas fan (11) is connected to a chimney (12), the liquid output end of the Venturi condensation scrubber (9) returns to the water treatment system, the drying medium mixer (10) is connected to the centrifugal dehydration and drying all-in-one machine (2).
2. The integrated municipal sludge dewatering, drying and incinerating system according to claim 1, wherein the integrated municipal sludge dewatering, drying and incinerating system comprises: and a deodorization device (13) is arranged on a connecting pipeline of the waste gas fan (11) and the chimney (12).
3. The integrated municipal sludge dewatering, drying and incinerating system according to claim 1, wherein the integrated municipal sludge dewatering, drying and incinerating system comprises: the input end of the rotary kiln (8) is provided with a hot blast stove (14), the output end of the rotary kiln is provided with a second combustion chamber (15), and the second combustion chamber (15) is connected to the drying medium mixer (10).
4. The integrated municipal sludge dewatering, drying and incinerating system according to claim 1, wherein the integrated municipal sludge dewatering, drying and incinerating system comprises: the solid output end of the second combustion chamber (15) is connected to a slag discharging tank (17) through an ash conveying screw (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911215599.XA CN110845115A (en) | 2019-12-02 | 2019-12-02 | Municipal sludge dewatering mummification incineration disposal integration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911215599.XA CN110845115A (en) | 2019-12-02 | 2019-12-02 | Municipal sludge dewatering mummification incineration disposal integration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110845115A true CN110845115A (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911215599.XA Pending CN110845115A (en) | 2019-12-02 | 2019-12-02 | Municipal sludge dewatering mummification incineration disposal integration system |
Country Status (1)
| Country | Link |
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| CN (1) | CN110845115A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190413A (en) * | 2011-03-24 | 2011-09-21 | 华新环境工程有限公司 | Method of integratedly utilizing sludge pretreatment and cement kiln, and system thereof |
| CN203513455U (en) * | 2013-10-11 | 2014-04-02 | 河北泰泽环保科技有限公司 | Sludge drying and incineration system |
| CN204298210U (en) * | 2014-11-10 | 2015-04-29 | 上海市离心机械研究所有限公司 | A kind of for municipal sludge advanced treatment system |
| CN211620340U (en) * | 2019-12-02 | 2020-10-02 | 上海市离心机械研究所有限公司 | Municipal sludge dewatering mummification incineration disposal integration system |
-
2019
- 2019-12-02 CN CN201911215599.XA patent/CN110845115A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190413A (en) * | 2011-03-24 | 2011-09-21 | 华新环境工程有限公司 | Method of integratedly utilizing sludge pretreatment and cement kiln, and system thereof |
| CN203513455U (en) * | 2013-10-11 | 2014-04-02 | 河北泰泽环保科技有限公司 | Sludge drying and incineration system |
| CN204298210U (en) * | 2014-11-10 | 2015-04-29 | 上海市离心机械研究所有限公司 | A kind of for municipal sludge advanced treatment system |
| CN211620340U (en) * | 2019-12-02 | 2020-10-02 | 上海市离心机械研究所有限公司 | Municipal sludge dewatering mummification incineration disposal integration system |
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