CN109294686A - The processing method of mud decrement charing recycling - Google Patents
The processing method of mud decrement charing recycling Download PDFInfo
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- CN109294686A CN109294686A CN201811464920.3A CN201811464920A CN109294686A CN 109294686 A CN109294686 A CN 109294686A CN 201811464920 A CN201811464920 A CN 201811464920A CN 109294686 A CN109294686 A CN 109294686A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
- B01D2257/2064—Chlorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Sludge (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses the processing methods of mud decrement charing recycling, method and step is as follows: (1) dry: the moisture content for receiving the sludge in storehouse to sludge is measured, and then the sludge in sludge reception storehouse is delivered in sludge dryer by sludge delivery pump and is dried to sludge；(2) aoxidize: through sludge dryer, treated that sludge transported by sludge conveyer that oxidation processes are carried out into external-heating revolving oxidation furnace；(3) carbonize: the sludge after oxidation-treated is transported by bucket chain conveyor carries out charing process into external-heating revolving retort；(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated to get active carbon.The present invention handles sludge, is realized resource utilization, and absorbent charcoal material specific surface area obtained is greater than 500 ㎡/g, the adsorption effect of active carbon is good using the process of " drying+oxidation+charing+activation+finished product preparation ".
Description
Technical field
The present invention relates to technical field of sludge treatment more particularly to the processing methods of mud decrement charing recycling.
Background technique
With the fast development of urbanization and national economy, municipal sewage and Industrial Waste Water Treatments rate are continuously improved, sludge
Generation and its quantity sharply increase.If processing mode is improper, will cause that treated, sludge shale is unstable, easily to environment meeting
Cause serious secondary pollution；Resource in sludge is not utilized, does not meet the target of sustainable development.
Traditional specific resistance to filtration technology includes landfill, abandons sea, burning, aerobic compost, anaerobic digestion and agricultural etc., all
It can realize to a certain degree the minimizing of sludge and innoxious, but some shortcomings are also individually present.
Major technique has the dehydration of sludge high-drying degree, sludge hydrolytic desiccation, sludge carbonization, sludge heat drying etc. at present.Sludge
After high mass dryness fraction dehydration, dewatered sludge mainly uses land-fill method, needs largely to fill land used there is still a need for further disposition.Sludge
After hydrolyzing desiccation, after dewatered sludge shale meets relevant pollutant catabolic gene standard, it can be used for afforestation or agricultural, but product
Market acceptance is low, causes largely to overstock.Sludge carbonization technology is that charing sludge is made in sludge, can be used for using pyrolysis oven
Burning or land use, but charing sludge calorific value is generally lower, is not suitable for burning, and the heavy metal index for carbonizing sludge may surpass
Mark, is not suitable for land use.
Summary of the invention
Technical problems based on background technology, the invention proposes the treatment process sides of mud decrement charing recycling
Method is handled sludge using the process of " prepared by drying+oxidation+charing+activation+finished product ", realizes resource utilization, this
Invention can also improve the specific surface area of sludge preparing active carbon, greatly improve adsorption effect.
The processing method of mud decrement charing recycling proposed by the present invention, method and step are as follows:
(1) dry: the moisture content for receiving the sludge in storehouse to sludge is measured, and then passes through sludge delivery pump for sludge
Sludge in reception storehouse, which is delivered in sludge dryer, dries sludge；Sludge in the step refer generally to moisture content≤
The excess sludge that 85% municipal sludge or biochemical treatment of industrial wastewater stage generate, is also possible to belong to general industry solid waste
The mixture of a variety of sludge；When sludge moisture content be greater than 85%, first sludge is stood, remove supernatant, make sludge
Moisture content is lower than after 85%, then is transported to sludge and receives in storehouse, can also be in other way by the aqueous of sludge
Rate is reduced to 85% or less；
(2) it aoxidizes: being transported by sludge conveyer to external-heating revolving oxidation furnace through sludge dryer treated sludge
Middle carry out oxidation processes；The oxidation of sludge occurs mainly in the surface of mud granule under normal circumstances, for dehydration is further dried
Process is discharged with gas, oxidation stage, which carries out pre-oxidation treatment without sludge, can accelerate the efficiency of subsequent activation reaction, improve most
The absorption property of finished product active carbon；The heat source of external-heating revolving oxidation furnace comes from natural gas or diesel fuel burner, passes through outer heat
Formula turns round the material in the outer cylinder heating rotary cylinder of oxidation furnace, after system operation, high temperature of the heat source in exhaust treatment system
Flue gas；
(3) carbonize: the sludge after oxidation-treated is transported by bucket chain conveyor to carry out into external-heating revolving retort
Charing process, the material after charing are cooled to 120-150 DEG C through heat exchanger, then transport to screening plant and sieved, on sieve
Material enters carbonized material feed bin, and undersize material enters the feed system back-mixing before drying equipment；The stage be equivalent to sludge into
Row low temperature distillation or pyrolytic process.It will treated that material carries out in the absence of air conditions by external-heating revolving oxidation furnace
Heat temperature raising reduces non-carbon element, so that the material after charing process meets the needs of activation stage；
(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated, and is activated
The spiral discharging cooler of treated the activated furnace bottom of material carries out material to be cooled to 60-80 DEG C while discharging,
Material after cooling is delivered to active carbon finished products processing unit and is sieved, and the bulky grain material on sieve, which enters crushing device, to carry out brokenly
It is broken, screening is then re-started again, is sieved qualified material and is entered the storage of product feed bin；Activated media is vapor, activation furnace
Interior to be equipped with multiple burners, the fuel that burner combustion uses is natural gas or diesel oil, and material and water after charing process steam
Gas generates activated material and tail gas in reaction in furnace, and the Secondary Air being sent into blower is mixed and burned in furnace, what burner generated
Heat a part that heat and fuel gas generate is by direct convection current to material, and a part is by resistance to furnace wall and burner hearth
Fiery material radiation, re-radiation pass to material.
Preferably, the tail gas in the external-heating revolving oxidation furnace, external-heating revolving retort and activation furnace passes through flue gas
For pipeline to exhaust treatment system, the exhaust treatment system includes waste heat boiler, dry desulfurization device, bag-type dust dress
It sets, air-introduced machine and chimney.
Preferably, the steaming that the heat source of sludge dryer generates in the step (1) for waste heat boiler in exhaust treatment system
Vapour.
Preferably, sludge is pre-oxidized using hot-air in the step (2), controls the temperature of material in oxidation furnace
At 180-220 DEG C, material is in oxidation residing time in furnace 2-3h.
Preferably, the temperature of the hot-air is 260-300 DEG C, and carries out heating through heat exchanger by normal temperature air and be made.
Preferably, the temperature of charing process is 400-500 DEG C in the step (3), when stop of the material in retort
Between be 15-60min.
Preferably, the heating rate of material is 10-15 DEG C/min in the external-heating revolving retort.
Preferably, the temperature in the step (4) in activation furnace is 900-1000 DEG C, when stop of the material in activation furnace
Between be 10-14h.
Preferably, moisture percentage in sewage sludge is whole for drying in 20-30% so that treated for the sludge dryer in the step (1)
Point.
Compared with prior art, the beneficial effects of the present invention are: the application uses the work of " drying+oxidation+charing+activation "
Skill handles sludge, realizes the decrement charing and recycling of sludge；Material is carried out using hot-air in oxidation process
Pre-oxidation can accelerate the efficiency of subsequent priming reaction, and hot-air is exchanged heat by the material exported in carbonisation,
Resource is saved；The tail gas that external-heating revolving oxidation furnace, external-heating revolving retort and activation furnace generate enters vent gas treatment system
On the one hand system, the heat source that exhaust treatment system generates are used as the heat source of sludge dryer, on the one hand aoxidize as external-heating revolving
The heat source of furnace realizes making full use of for heat source, economizes on resources, reduces production cost；The ratio of active carbon made from the application
Surface area can be used for wastewater treatment in 500 ㎡/g or more, the active carbon, to phenols, the COD in waste watercrRemoval rate is high, can be with
For waste gas treatment process, there is higher removal rate to pernicious gases such as sulfur dioxide, carbon tetrachloride, benzene.
Detailed description of the invention
Fig. 1 is the process flow chart for the processing method that mud decrement proposed by the present invention carbonizes recycling.
In figure: 1- sludge receives storehouse, 2- sludge delivery pump, 3- sludge dryer, 4- sludge conveyer, 5- external-heating revolving
Oxidation furnace, 6- bucket chain conveyor, 7- external-heating revolving retort, 8- cooler, 9- screening plant, 10- carbonized material feed bin, 11-
Conveyer, 12- activation furnace, 13- active carbon finished products processing unit, 14- exhaust treatment system, 15- air, 16- oxidation hot-air,
17- tail gas.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
With reference to Fig. 1, mud decrement carbonizes the processing method of recycling, and method and step is as follows:
Embodiment 1
(1) it dries: the municipal sludge that moisture content is 80% being delivered to sludge and receives storehouse, it then will by sludge delivery pump
The sludge that sludge receives in storehouse is delivered in sludge dryer and dries to sludge；
(2) it aoxidizes: when the moisture content through sludge dryer treated sludge is down to 30%, being transported by sludge conveyer
Oxidation processes are carried out into external-heating revolving oxidation furnace, control the temperature of material in oxidation furnace at 200 DEG C, material is in oxidation furnace
Residence time 3h pre-oxidizes material using 280 DEG C of hot-air in oxidation process；
(3) carbonize: the sludge after oxidation-treated is transported by bucket chain conveyor to carry out into external-heating revolving retort
Charing process, the temperature for processing of talking are 450 DEG C, and residence time of the material in retort is 40min, the material warp after charing
Heat exchanger is cooled to 140 DEG C, then transports to screening plant and is sieved, and the material after screening enters carbonized material feed bin；
(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated, and is activated
Temperature in furnace is 950 DEG C, and residence time of the material in activation furnace is 12h, the activated furnace bottom of material after activation processing
Spiral discharging cooler, be cooled to 70 DEG C to material while discharging, material after cooling be delivered to active carbon at
Product processing unit is sieved, and the bulky grain material on sieve enters crushing device and is crushed, and then re-starts screening again, screening
Qualified material enters the storage of product feed bin, when needing packaging operation, is sent according to required packing specification to packaging unit and is carried out
Packaging operation.
The specific surface area of the resulting granular activated carbon of the present embodiment is 730 ㎡/g, is significantly better than common sludge active carbon
Specific surface area (100-200 ㎡/g).
Embodiment 2
(1) it dries: the municipal sludge that moisture content is 75% being delivered to sludge and receives storehouse, it then will by sludge delivery pump
The sludge that sludge receives in storehouse is delivered in sludge dryer and dries to sludge；
(2) it aoxidizes: when the moisture content through sludge dryer treated sludge is down to 30%, being transported by sludge conveyer
Oxidation processes are carried out into external-heating revolving oxidation furnace, control the temperature of material in oxidation furnace at 180 DEG C, material is in oxidation furnace
Residence time 2h pre-oxidizes material using 260 DEG C of hot-air in oxidation process；
(3) carbonize: the sludge after oxidation-treated is transported by bucket chain conveyor to carry out into external-heating revolving retort
Charing process, the temperature for processing of talking are 400 DEG C, and residence time of the material in retort is 15min, the material warp after charing
Heat exchanger is cooled to 120 DEG C, then transports to screening plant and is sieved, and the material after screening enters carbonized material feed bin；
(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated, and is activated
Temperature in furnace is 900 DEG C, and residence time of the material in activation furnace is 10h, the activated furnace bottom of material after activation processing
Spiral discharging cooler, be cooled to 60 DEG C to material while discharging, material after cooling be delivered to active carbon at
Product processing unit is sieved, and the bulky grain material on sieve enters crushing device and is crushed, and then re-starts screening again, screening
Qualified material enters the storage of product feed bin, when needing packaging operation, is sent according to required packing specification to packaging unit and is carried out
Packaging operation.
The specific surface area of the resulting granular activated carbon of the present embodiment is 513 ㎡/g, is significantly better than common sludge active carbon
Specific surface area (100-200 ㎡/g).
Embodiment 3
(1) it dries: the municipal sludge that moisture content is 82% being delivered to sludge and receives storehouse, it then will by sludge delivery pump
The sludge that sludge receives in storehouse is delivered in sludge dryer and dries to sludge；
(2) it aoxidizes: when the moisture content through sludge dryer treated sludge is down to 30%, being transported by sludge conveyer
Oxidation processes are carried out into external-heating revolving oxidation furnace, control the temperature of material in oxidation furnace at 220 DEG C, material is in oxidation furnace
Residence time 3h pre-oxidizes material using 300 DEG C of hot-air in oxidation process；
(3) carbonize: the sludge after oxidation-treated is transported by bucket chain conveyor to carry out into external-heating revolving retort
Charing process, the temperature for processing of talking are 500 DEG C, and residence time of the material in retort is 60min, the material warp after charing
Heat exchanger is cooled to 150 DEG C, then transports to screening plant and is sieved, and the material after screening enters carbonized material feed bin；
(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated, and is activated
Temperature in furnace is 1000 DEG C, and residence time of the material in activation furnace is 14h, the activated furnace bottom of material after activation processing
Spiral discharging cooler, be cooled to 80 DEG C to material while discharging, material after cooling be delivered to active carbon at
Product processing unit is sieved, and the bulky grain material on sieve enters crushing device and is crushed, and then re-starts screening again, screening
Qualified material enters the storage of product feed bin, when needing packaging operation, is sent according to required packing specification to packaging unit and is carried out
Packaging operation.
The specific surface area of the resulting granular activated carbon of the present embodiment is 685 ㎡/g, is significantly better than common sludge active carbon
Specific surface area (100-200 ㎡/g).
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. the processing method of mud decrement charing recycling, which is characterized in that method and step is as follows:
(1) dry: the moisture content for receiving the sludge in storehouse to sludge is measured, and is then received sludge by sludge delivery pump
Sludge in storehouse is delivered in sludge dryer and dries to sludge；
(2) aoxidize: through sludge dryer treated sludge by sludge conveyer transport into external-heating revolving oxidation furnace into
Row oxidation processes；
(3) carbonize: the sludge after oxidation-treated, which is transported by bucket chain conveyor into external-heating revolving retort, to be carbonized
Processing, the material after charing are cooled to 120-150 DEG C through heat exchanger, then transport to screening plant and sieved, on-the-sieve material
Into carbonized material feed bin, undersize material enters the feed system back-mixing before drying equipment；
(4) activate: the material in carbonized material feed bin, which is transported through charing material conveyer to activation furnace, to be activated, and is activated
The spiral discharging cooler of the activated furnace bottom of material afterwards carries out material while discharging to be cooled to 60-80 DEG C, cooling
Material afterwards is delivered to active carbon finished products processing unit and is sieved, and the bulky grain material on sieve enters crushing device and is crushed,
Then screening is re-started again, is sieved qualified material and is entered the storage of product feed bin.
2. the processing method of mud decrement charing recycling according to claim 1, which is characterized in that the outer heat
Tail gas in formula revolution oxidation furnace, external-heating revolving retort and activation furnace is delivered to exhaust treatment system by flue,
The exhaust treatment system includes waste heat boiler, dry desulfurization device, bag-type dust collector, air-introduced machine and chimney.
3. the processing method of mud decrement charing recycling according to claim 2, which is characterized in that the step
(1) heat source of sludge dryer is the steam that waste heat boiler generates in exhaust treatment system in.
4. the processing method of mud decrement charing recycling according to claim 2, which is characterized in that the step
(2) sludge is pre-oxidized in using hot-air, controls the temperature of material in external-heating revolving oxidation furnace at 180-220 DEG C,
Material residence time 2-3h in external-heating revolving oxidation furnace.
5. the processing method of mud decrement charing recycling according to claim 4, which is characterized in that the heat is empty
The temperature of gas is 260-300 DEG C, and carries out heating through heat exchanger by normal temperature air and be made.
6. the processing method of mud decrement charing recycling according to claim 2, which is characterized in that the step
(3) temperature of charing process is 400-500 DEG C in, and residence time of the material in external-heating revolving retort is 15-60min,
The sieve pore 0.5-1.0mm of screening plant.
7. the processing method of mud decrement charing recycling according to claim 6, which is characterized in that the outer heat
The heating rate that formula turns round material in retort is 10-15 DEG C/min.
8. the processing method of mud decrement charing recycling according to claim 2, which is characterized in that the step
(4) temperature in activation furnace is 900-1000 DEG C, and residence time of the material in activation furnace is 10-14h；The step (4)
In the sieve pore of finished activated charcoal screening be 2-4mm.
9. the processing method of mud decrement charing recycling according to claim 2, which is characterized in that the step
(1) sludge dryer in is drying terminal in 20-30% with treated moisture percentage in sewage sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811464920.3A CN109294686A (en) | 2018-12-03 | 2018-12-03 | The processing method of mud decrement charing recycling |
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| CN201811464920.3A CN109294686A (en) | 2018-12-03 | 2018-12-03 | The processing method of mud decrement charing recycling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104646A (en) * | 2019-04-15 | 2019-08-09 | 光大环保技术研究院（南京）有限公司 | A kind of utilization of resources system and method for active carbon preparation |
| CN114368750A (en) * | 2021-11-25 | 2022-04-19 | 安徽久泰新材料科技有限公司 | Process for preparing activated carbon by adopting landscaping deleted substances |
| CN116282338A (en) * | 2023-04-27 | 2023-06-23 | 东华工程科技股份有限公司 | Chemical wastewater treatment agent and preparation method thereof |
-
2018
- 2018-12-03 CN CN201811464920.3A patent/CN109294686A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104646A (en) * | 2019-04-15 | 2019-08-09 | 光大环保技术研究院（南京）有限公司 | A kind of utilization of resources system and method for active carbon preparation |
| CN114368750A (en) * | 2021-11-25 | 2022-04-19 | 安徽久泰新材料科技有限公司 | Process for preparing activated carbon by adopting landscaping deleted substances |
| CN116282338A (en) * | 2023-04-27 | 2023-06-23 | 东华工程科技股份有限公司 | Chemical wastewater treatment agent and preparation method thereof |
| CN116282338B (en) * | 2023-04-27 | 2023-08-22 | 东华工程科技股份有限公司 | Chemical wastewater treatment agent and preparation method thereof |
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