CN111675455A - Drying treatment technology for oil-containing sludge - Google Patents
Drying treatment technology for oil-containing sludge Download PDFInfo
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- CN111675455A CN111675455A CN202010418495.5A CN202010418495A CN111675455A CN 111675455 A CN111675455 A CN 111675455A CN 202010418495 A CN202010418495 A CN 202010418495A CN 111675455 A CN111675455 A CN 111675455A
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- sludge
- oily sludge
- drying treatment
- oil
- treatment technology
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- 239000010802 sludge Substances 0.000 title claims abstract description 84
- 238000001035 drying Methods 0.000 title claims abstract description 32
- 238000005516 engineering process Methods 0.000 title claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000701 coagulant Substances 0.000 claims description 9
- 238000004062 sedimentation Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 239000002250 absorbent Substances 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 6
- 239000012190 activator Substances 0.000 claims description 6
- 239000002781 deodorant agent Substances 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 6
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 235000011126 aluminium potassium sulphate Nutrition 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 3
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 150000008442 polyphenolic compounds Chemical class 0.000 claims description 3
- 235000013824 polyphenols Nutrition 0.000 claims description 3
- 229940050271 potassium alum Drugs 0.000 claims description 3
- GRLPQNLYRHEGIJ-UHFFFAOYSA-J potassium aluminium sulfate Chemical compound [Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRLPQNLYRHEGIJ-UHFFFAOYSA-J 0.000 claims description 3
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 235000011181 potassium carbonates Nutrition 0.000 claims description 3
- 235000010333 potassium nitrate Nutrition 0.000 claims description 3
- 239000004323 potassium nitrate Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 3
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 239000000052 vinegar Substances 0.000 claims description 3
- 235000021419 vinegar Nutrition 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 238000007873 sieving Methods 0.000 abstract 1
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthrene Natural products C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/148—Combined use of inorganic and organic substances, being added in the same treatment step
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention belongs to the technical field of sludge treatment, and discloses a drying treatment technology for oil-containing sludge. The drying treatment technology of the oil-containing sludge comprises the following steps: crushing sludge, crushing oily sludge by a sorting runner, filtering the sludge by using a sieve plate, and repeatedly crushing and sieving large solid matters under the sieve; the oily sludge is circularly crushed for a plurality of times until the oily sludge passes through the sieve plate; and step two, demulsifying the oily sludge, adding a demulsifier into the oily sludge crushed in the step one, and continuously stirring and mixing. This mummification processing technology of oiliness mud carries out many times broken filtration to mud, can the content of greatly reduced large granule filth, makes abundant preparation for subsequent improvement step, avoids the insufficient condition of improvement to this processing technology simplifies the processing procedure, easy operation, and the input cost is low, is fit for extensive popularization.
Description
Technical Field
The invention relates to the technical field of sludge treatment, in particular to a drying treatment technology of oil-containing sludge.
Background
The oily (hydrocarbon-containing) sludge is huge in volume, if the oily (hydrocarbon-containing) sludge is directly discharged without treatment, not only a large amount of cultivated land is occupied, but also the surrounding soil, water and air are polluted, along with the generation of malodorous gases, the sludge contains a large amount of pathogenic bacteria, parasites (eggs), heavy metals such as copper, zinc, chromium, mercury and the like, salts, toxic substances with malodor such as benzene series, phenols, polychlorinated biphenyl, dioxin, anthracene, pyrene and the like, and refractory toxic substances such as radioactive nuclide and the like. The land filling can cause serious pollution to underground water and serious damage to natural original ecology such as grain crops, trees, vegetation and the like.
The oily sludge usually has a large amount of large-particle dirt, and the existence of the large-particle dirt seriously affects the drying treatment of the oily sludge, for example, in the improvement process, because the existence of large particles, the mixing of a modifying agent and the dirt is difficult to realize, and the improvement effect is affected, so how to realize high-efficiency sludge drying treatment is a problem which needs to be solved urgently.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a drying treatment technology for oil-containing sludge, which can efficiently carry out drying treatment on sludge and repeatedly and greatly improve the sludge modification effect.
The invention provides the following technical scheme: the drying treatment technology of the oily sludge comprises the following steps:
step one, carrying out crushing treatment on sludge,
the separation runner is used for crushing the oily sludge, the sieve plate is used for filtering the sludge, and large solid matters under the sieve are repeatedly crushed and sieved; the oily sludge is circularly crushed for a plurality of times until the oily sludge passes through the sieve plate.
Step two, demulsifying the oil-containing sludge,
and (3) adding a demulsifier into the oily sludge crushed in the step one, continuously stirring and mixing, introducing the oily sludge into a sedimentation tank after demulsification is finished, adding a coagulant for sedimentation, and discharging the upper-layer waste oil and accumulated water to obtain bottom sludge after sedimentation is finished.
Step three, carrying out purification treatment on the oily sludge,
measuring the water content of sludge to be treated of the oil-containing sludge, preparing a modifying agent according to the parts by weight, conveying the oil-containing sludge into a drying tank, stirring the sludge, adding the modifying agent according to the proportion of 1:4 while stirring, heating the drying tank, and keeping the temperature of the drying tank between 200 ℃ and 250 ℃.
And step four, sampling the sludge in the step three, stopping heating when the water content is less than or equal to 5 percent and the oil content is less than or equal to 0.5 percent, and introducing the dried sludge into a granulator to be processed into sludge granules.
And (5) finishing drying treatment.
Preferably, the addition amount of the demulsifier is 20-60 g/L, and the demulsification time is 12-25 minutes.
Preferably, the demulsifier adopts calcium chloride or polymeric aluminum ferric sulfate.
Preferably, the modifier comprises 70 parts of curing agent, 40 parts of calorific value regulator, 5 parts of alkaline activator, 4 parts of oil absorbent, 22 parts of surfactant, 15 parts of moisture regulator and 15 parts of deodorant.
Preferably, the oil absorbent component is one or more of modified zeolite, modified diatomite, modified straw fiber, sodium lignosulfonate and calcium lignosulfonate, and the alkali activator is one or more of sodium carbonate, sodium hydroxide, potassium carbonate, alum and potassium nitrate.
Preferably, the moisture regulator is one or more of zeolite, diatomite or activated carbon powder, and the deodorant is one or more of wood vinegar or plant polyphenol.
Preferably, the surfactant is one or more of sodium dodecyl sulfate, fatty alcohol-polyoxyethylene ether, sodium carboxymethylcellulose or propylene glycol methyl ether acetate.
Preferably, the coagulant is aluminum polysilicate, ferric polysilicate or aluminum polysilicate ferric, the addition amount of the coagulant is 20-40mg/L, the stirring time is 10-30min, and the precipitation time is 30-60 min.
By adopting the technical scheme, the invention has the beneficial effects that:
this mummification processing technology of oiliness mud carries out many times broken filtration to mud, can the content of greatly reduced large granule filth, makes abundant preparation for subsequent improvement step, avoids the insufficient condition of improvement to this processing technology simplifies the processing procedure, easy operation, and the input cost is low, is fit for extensive popularization.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
A drying treatment technology of oily sludge comprises the following steps:
step one, carrying out crushing treatment on sludge,
the separation runner is used for crushing the oily sludge, the sieve plate is used for filtering the sludge, and large solid matters under the sieve are repeatedly crushed and sieved; the oily sludge is circularly crushed for a plurality of times until the oily sludge passes through the sieve plate.
Step two, demulsifying the oil-containing sludge,
and (3) adding a demulsifier into the oily sludge crushed in the step one, continuously stirring and mixing, introducing the oily sludge into a sedimentation tank after demulsification is finished, adding a coagulant for sedimentation, and discharging the upper-layer waste oil and accumulated water to obtain bottom sludge after sedimentation is finished.
Step three, carrying out purification treatment on the oily sludge,
measuring the water content of sludge to be treated of the oil-containing sludge, preparing a modifying agent according to the parts by weight, conveying the oil-containing sludge into a drying tank, stirring the sludge, adding the modifying agent according to the proportion of 1:4 while stirring, heating the drying tank, and keeping the temperature of the drying tank between 200 ℃ and 250 ℃.
And step four, sampling the sludge in the step three, stopping heating when the water content is less than or equal to 5 percent and the oil content is less than or equal to 0.5 percent, and introducing the dried sludge into a granulator to be processed into sludge granules.
And (5) finishing drying treatment.
The addition amount of the demulsifier is 20-60 g/L, and the demulsification time is 12-25 minutes.
The demulsifier adopts calcium chloride or polymeric aluminum ferric sulfate.
The modifier comprises 70 parts of curing agent, 40 parts of heat value regulator, 5 parts of alkaline activator, 4 parts of oil absorbent, 22 parts of surfactant, 15 parts of moisture regulator and 15 parts of deodorant.
The oil absorbent is one or more of modified zeolite, modified diatomite, modified straw fiber, sodium lignosulfonate or calcium lignosulfonate, and the alkali activator is one or more of sodium carbonate, sodium hydroxide, potassium carbonate, alum or potassium nitrate.
The moisture regulator is one or more of zeolite, diatomaceous earth or activated carbon powder, and the deodorant is one or more of wood vinegar liquid or plant polyphenol.
The surfactant is one or more of sodium dodecyl sulfate, fatty alcohol-polyoxyethylene ether, sodium carboxymethylcellulose or propylene glycol methyl ether acetate.
The coagulant is aluminum polysilicate, ferric polysilicate or aluminum ferric polysilicate, the addition amount of the coagulant is 20-40mg/L, the stirring time is 10-30min, and the precipitation time is 30-60 min.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A drying treatment technology of oily sludge is characterized in that: the drying treatment technology comprises the following steps:
step one, carrying out crushing treatment on sludge,
the separation runner is used for crushing the oily sludge, the sieve plate is used for filtering the sludge, and large solid matters under the sieve are repeatedly crushed and sieved; the oily sludge is circularly crushed for a plurality of times until the oily sludge passes through the sieve plate;
step two, demulsifying the oil-containing sludge,
adding a demulsifier into the crushed oily sludge obtained in the step one, continuously stirring and mixing, introducing the oily sludge into a sedimentation tank after demulsification is completed, adding a coagulant for sedimentation, and discharging upper-layer waste oil and accumulated water to obtain bottom sludge after sedimentation is completed;
step three, carrying out purification treatment on the oily sludge,
measuring the water content of sludge to be treated of the oil-containing sludge, preparing a modifying agent according to the parts by weight, conveying the oil-containing sludge into a drying tank, stirring the sludge, adding the modifying agent according to the proportion of 1:4 while stirring, heating the drying tank, and keeping the temperature of the drying tank between 200 ℃ and 250 ℃.
Step four, sampling the sludge in the step three, stopping heating when the water content is less than or equal to 5 percent and the oil content is less than or equal to 0.5 percent, and introducing the sludge which is dried into a granulator to be processed into sludge particles;
and (5) finishing drying treatment.
2. The drying treatment technology of the oily sludge according to claim 1, which is characterized in that: the addition amount of the demulsifier is 20-60 g/L, and the demulsification time is 12-25 minutes.
3. The drying treatment technology of the oily sludge according to claim 1, which is characterized in that: the demulsifier adopts calcium chloride or polymeric aluminum ferric sulfate.
4. The drying treatment technology of the oily sludge according to claim 1, which is characterized in that: the modifier comprises 70 parts of a curing agent, 40 parts of a heat value regulator, 5 parts of an alkaline activator, 4 parts of an oil absorbent, 22 parts of a surfactant, 15 parts of a moisture regulator and 15 parts of a deodorant.
5. The drying treatment technology of the oily sludge according to claim 4, which is characterized in that: the oil absorbent is prepared by compounding one or more of modified zeolite, modified diatomite, modified straw fiber, sodium lignosulfonate and calcium lignosulfonate, and the alkali activator is one or more of sodium carbonate, sodium hydroxide, potassium carbonate, alum and potassium nitrate.
6. The drying treatment technology of the oily sludge according to claim 4, which is characterized in that: the moisture regulator is one or more of zeolite, diatomite or activated carbon powder, and the deodorant is one or more of wood vinegar or plant polyphenol.
7. The drying treatment technology of the oily sludge according to claim 4, which is characterized in that: the surfactant is one or more of sodium dodecyl sulfate, fatty alcohol-polyoxyethylene ether, sodium carboxymethylcellulose or propylene glycol methyl ether acetate.
8. The drying treatment technology of the oily sludge according to claim 1, which is characterized in that: the coagulant is aluminum polysilicate, ferric polysilicate or aluminum ferric polysilicate, the addition amount of the coagulant is 20-40mg/L, the stirring time is 10-30min, and the precipitation time is 30-60 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418495.5A CN111675455A (en) | 2020-05-18 | 2020-05-18 | Drying treatment technology for oil-containing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010418495.5A CN111675455A (en) | 2020-05-18 | 2020-05-18 | Drying treatment technology for oil-containing sludge |
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| Publication Number | Publication Date |
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| CN111675455A true CN111675455A (en) | 2020-09-18 |
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| CN202010418495.5A Pending CN111675455A (en) | 2020-05-18 | 2020-05-18 | Drying treatment technology for oil-containing sludge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114128592A (en) * | 2021-12-02 | 2022-03-04 | 青岛润森生态建设工程有限公司 | Soil matrix for mountain restoration and preparation method and application thereof |
| CN115072907A (en) * | 2022-07-22 | 2022-09-20 | 天津开放大学 | Trace sediment treatment method for industrial oily wastewater |
| CN115583780A (en) * | 2022-10-13 | 2023-01-10 | 山东京阳科技股份有限公司 | Oily sludge treatment method |
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| CN106630545A (en) * | 2017-02-06 | 2017-05-10 | 天津市环境保护技术开发中心设计所 | Drying treatment method of oil-containing sludge |
| CN107162359A (en) * | 2017-05-31 | 2017-09-15 | 北京朗清源节能环保科技有限公司 | Process for treating oil-containing sludge |
| WO2020029653A1 (en) * | 2018-08-04 | 2020-02-13 | 盘锦宁泰能源科技有限公司 | Intelligent oil sludge treatment apparatus and treatment process |
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2020
- 2020-05-18 CN CN202010418495.5A patent/CN111675455A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106630545A (en) * | 2017-02-06 | 2017-05-10 | 天津市环境保护技术开发中心设计所 | Drying treatment method of oil-containing sludge |
| CN107162359A (en) * | 2017-05-31 | 2017-09-15 | 北京朗清源节能环保科技有限公司 | Process for treating oil-containing sludge |
| WO2020029653A1 (en) * | 2018-08-04 | 2020-02-13 | 盘锦宁泰能源科技有限公司 | Intelligent oil sludge treatment apparatus and treatment process |
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| CN114128592A (en) * | 2021-12-02 | 2022-03-04 | 青岛润森生态建设工程有限公司 | Soil matrix for mountain restoration and preparation method and application thereof |
| CN114128592B (en) * | 2021-12-02 | 2022-10-25 | 青岛润森生态环境科技有限公司 | Soil matrix for mountain restoration and preparation method and application thereof |
| CN115072907A (en) * | 2022-07-22 | 2022-09-20 | 天津开放大学 | Trace sediment treatment method for industrial oily wastewater |
| CN115583780A (en) * | 2022-10-13 | 2023-01-10 | 山东京阳科技股份有限公司 | Oily sludge treatment method |
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