CN108275859A - A kind of continuous greasy filth environment-friendly treating process - Google Patents
A kind of continuous greasy filth environment-friendly treating process Download PDFInfo
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- CN108275859A CN108275859A CN201810064280.0A CN201810064280A CN108275859A CN 108275859 A CN108275859 A CN 108275859A CN 201810064280 A CN201810064280 A CN 201810064280A CN 108275859 A CN108275859 A CN 108275859A
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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
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
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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
-
- 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
-
- 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
-
- 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
-
- 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
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The present invention relates to oil-sludge treatment technical fields, disclose a kind of continuous greasy filth environment-friendly treating process.The continuous greasy filth environment-friendly treating process utilizes second-time burning method, twice combustion processing is carried out to pyrolysis waste residue and pyrolysis gas, prevent greasy filth that may be pyrolyzed incomplete problem in pyrolytic process, the pyrolysis not exclusively remaining chemical substance of institute is subjected to burning processing, environmental protection treatment is carried out to tail gas caused by greasy filth simultaneously, it prevents from subsequently discharging the pollution to environment, to substantially increase the using effect of the continuous greasy filth environment-friendly treating process.
Description
Technical field
The present invention relates to oil-sludge treatment technical field, specially a kind of continuous greasy filth environment-friendly treating process.
Background technology
Oily sludge refers to the sludge for being mixed into the mink cell focuses such as crude oil, various product oils, residual oil.Oily sludge is not nature
It is inherently present, but has with crude oil, product oil since oilfield exploitation, petroleum refining process, transport, use, storage etc. are various
Pass it is industrial, civilian, personal etc., caused by the reasons such as various accidents, misoperation, outmoded, the damaged, corrosion of equipment crude oil, at
Product oil run, drip, leak, leak to ground, deposit to ocean, lake, river bed, mix and are formed with soil, water etc.
Oil, Tu Heshui, or even the mixture of other pollutants such as it is blended with.Oily sludge is harmful, has to plant, aqueous bio
Evil, skin, eyes and respiratory apparatus can be stimulated by evaporating aerial oil gas, and soil is made to lose the function of plant growth, processing
It is difficult with repairing, it is one of the major pollutants of oil and petrochemical industry.
Chinese patent CN106746419A is related to a kind of oily sludge scale pyrolysis treatment systems, as shown in Figure 1, packet
Charging Pre-sorting unit is included, is used for carrying out postsearch screening and separation of solid and liquid to oily sludge, desiccation pyrolysis unit is used for oil-containing
Sludge carries out desiccation and pyrolytic reaction, dedusting condensing unit, be used for pyrolysis gas mixture caused by desiccation pyrolysis unit into
Row dedusting and condensation, effluent processing unit, effluent processing unit receive the isolate of other units and are handled respectively.
Can minimizing, stabilisation, innoxious, recycling finally be realized to the solids such as oily sludge or solid-liquid mixing class offal treatment
It utilizes.
As Fig. 2, Chinese patent CN106957136 A provide a kind of processing method of oily sludge, oily sludge heated
It stirs, is separated by solid-liquid separation after standing, obtains greasy filth and oily liq；Oily liq is passed through sewage disposal system and carries out grease
The oil of separation is carried out purification by liquid extraction by separation；It is quenched that medicament progress is added into greasy filth, carries out deep dehydration again after quenched, obtains
To dewatered greasy filth and filtrate, filtrate is carried out to the operation of water-oil separating again；Dewatered greasy filth is subjected to drying and other treatment, heat
Solve charing process.Processing method of the present invention is simple and effective, realizes the minimizing of oily sludge, innoxious, recycling place
Reason, and whole processing technology flow operations floor space is smaller, cost of investment is low.
When handling oily sludge, prior art flow is complicated, while being also difficult to carry out more oily sludge
The processing of environmental protection.For this purpose, we have proposed a kind of continuous greasy filth environment-friendly treating process to solve the above problems.
Invention content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the present invention provides a kind of continuous greasy filth environment-friendly treating process, have using second-time burning
Method and the advantages of carry out environmental protection discharge to tail gas, solves complicated to oil-sludge treatment flow in the prior art and environmental-protecting performance
Poor problem.
（Two）Technical solution
Above-mentioned using second-time burning method and to the purpose of the environmentally friendly discharge of tail gas progress to realize, the present invention provides following technical side
Case：A kind of continuous greasy filth environment-friendly treating process, includes the following steps：
1）Oily sludge is recycled, the oily sludge recycled is placed into dehydrating tower, and it is de- to carry out machinery to oily sludge
Water；2）By step 1）Oily sludge after middle carry out mechanical dehydration is placed into heating tower, and heated solvent is put into heating tower,
Heated solvent is blended in heating tower with oily sludge and carries out heating work, until the moisture in completely out greasy filth；3）It will step
Rapid 2）In greasy filth carry out greasy filth pyrolysis, greasy filth pyrolysis include first pyrolysis and second pyrolysis, first be pyrolyzed absolute pressure
For hundred pas of 750-850, temperature is 100-150 DEG C, and the absolute pressure of the second pyrolysis is less than 4,500 pas, and temperature is 150-300 DEG C, is obtained
To pyrolysis waste residue and pyrogenic steam；
4）Pyrolysis waste residue and pyrogenic steam are put into combustion chamber, carry out the burning processing of first time, and burning time is 10-30 points
Clock；5）By step 4）In pyrolysis waste residue and pyrogenic steam cooling after ten minutes, carry out second-time burning in a combustion chamber, burn
Time is 5-15 minutes；6）By step 5）In pyrolysis waste residue be sent into pyrolysis waste residue output device carry out after being cooled to 75 DEG C or less
It sends out；
7）By step 5）In pyrogenic steam carry out cooling treatment, obtain cooling gas；
8）Cooling gas is fed through in reverse-flow alkali liquid washing tower, cooling gas is contacted using alkali wash water, gained
Alkali cleaning tail gas is sent out from the top of reverse-flow alkali liquid washing tower, and gained alkali wash water is exported from the alkali wash water of reverse-flow alkali liquid washing tower
It sends out；
9）The alkali cleaning tail gas of gained and acid solution, oxidant and ferrous ion are subjected to catalysis oxidation under the action of nickel-base catalyst
Reaction；
10）By step 6）In pyrolysis waste residue filled, by step 9）In tail gas react it is up to standard after discharged.
Preferably, step 1）In oily sludge carried out the sampling of online composition and measured, calculate crude oil OL, water W, silt particle
SR contents；Determine colloid JZ, the asphalitine LZ and paraffin SL ratios in the main ingredient that crude oil includes, it is described online at
It includes being measured twice at the top and bottom of oily sludge that part sampling, which measures, its ratio is calculated according to precipitation status；Wherein OL+W+SR=
100%, OL=JZ+LZ+SL；Each component ratio note that top sampling in the wherein described online composition sampling measurement determines
For：OL1, W1, SR1, JZ1, LZ1, SL1, each component ratio that bottom sampling determines are denoted as：OL2、W2、SR2、JZ2、
LZ2, SL2, the ratio after top and bottom measurement is comprehensive are estimated as：
OL=（OL1+OL2）/2,W=（W1+W2）/ 2, SR=（SR1+SR2）/2；
Preferably, the step 2）Greasy filth temperature after middle preheating is 250-400 DEG C.
Preferably, the step 2）In greasy filth the heated solvent in solid phase is isolated in extraction and separation tower, to heating
Solvent is recycled, and is recycled in heating tower.
Preferably, step 2）In the sampling of heated solvent SO ratios and the composition measure in OL and W it is related, it is specific public
Formula is as follows：SO=（kOL+pW）* V, wherein k are solvent parameters, and p is dilution parameters, and V is greasy filth volume；Consider the moisture content in greasy filth
Dehydration can be preferably realized with the ratio of crude oil.
Preferably, the step 3）In the first pyrolysis time be 1-3 hour, the second pyrolysis time be 3-6 hours.
Preferably, the step 9）In oxidant be hydrogen peroxide.
Preferably, the step 9）In time of catalytic oxidation be 20-40 seconds, liquid air volume ratio is（5-15）：
1, the temperature of the catalytic oxidation is 30-60 DEG C, and the acid solution is hydrochloric acid or oxalic acid, the oxidant and ferrous ion
Molar ratio be 1：（2-8）.
Preferably, the step 4）In first time ignition temperature be 300-500 DEG C.
Preferably, the step 5）In second of ignition temperature be 500-800 DEG C.
（Three）Advantageous effect
Compared with prior art, the present invention provides a kind of continuous greasy filth environment-friendly treating process, has following advantageous effect：
The continuous greasy filth environment-friendly treating process carries out twice combustion using second-time burning method to pyrolysis waste residue and pyrolysis gas
Processing, and accurately control burning time, it is therefore prevented that greasy filth may be pyrolyzed incomplete problem in pyrolytic process, will be pyrolyzed
Not exclusively the remaining chemical substance of institute carries out burning processing, while carrying out environmental protection treatment to tail gas caused by greasy filth, after preventing
Pollution of the continuous discharge to environment is conducive to extensive to substantially increase the using effect of continuous greasy filth environment-friendly treating process
Popularization.
Description of the drawings
Fig. 1 is a kind of oily sludge scale pyrolysis treatment systems schematic diagram；
Fig. 2 is a kind of processing method schematic diagram of oily sludge；
Fig. 3 is implementing procedure figure of the present invention.
Specific implementation mode
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment 1
A kind of continuous greasy filth environment-friendly treating process, as shown in figure 3, including the following steps：
1）Oily sludge is recycled, the oily sludge recycled is placed into dehydrating tower, and it is de- to carry out machinery to oily sludge
Water；
2）By step 1）Oily sludge after middle carry out mechanical dehydration is placed into heating tower, and into heating tower, input heating is molten
Agent, heated solvent are blended in heating tower with oily sludge and carry out heating work, until the moisture in completely out greasy filth, preheating
Greasy filth temperature afterwards be 250-400 DEG C, greasy filth isolates the heated solvent in solid phase in extraction and separation tower, to heated solvent into
Row recycling, recycles in heating tower；
3）By step 2）In greasy filth carry out greasy filth pyrolysis, greasy filth pyrolysis include first pyrolysis and second pyrolysis, first be pyrolyzed
Absolute pressure be hundred pas of 750-850, temperature is 100-150 DEG C, and the absolute pressure of the second pyrolysis is less than 4,500 pas, and temperature is
150-300 DEG C, pyrolysis waste residue and pyrogenic steam are obtained, the first pyrolysis time is 1-3 hours, and the second pyrolysis time is that 3-6 is small
When；
4）Pyrolysis waste residue and pyrogenic steam are put into combustion chamber, carry out the burning processing of first time, and burning time is 10-30 points
Clock, first time ignition temperature are 300-500 DEG C；
5）By step 4）In pyrolysis waste residue and pyrogenic steam cooling after ten minutes, carry out second-time burning in a combustion chamber, fire
It is 5-15 minutes to burn the time, and second of ignition temperature is 500-800 DEG C；
6）By step 5）In pyrolysis waste residue be sent into submittings after pyrolysis waste residue output device be cooled to 75 DEG C or less；
7）By step 5）In pyrogenic steam carry out cooling treatment, obtain cooling gas；
8）Cooling gas is fed through in reverse-flow alkali liquid washing tower, cooling gas is contacted using alkali wash water, gained
Alkali cleaning tail gas is sent out from the top of reverse-flow alkali liquid washing tower, and gained alkali wash water is exported from the alkali wash water of reverse-flow alkali liquid washing tower
It sends out；
9）The alkali cleaning tail gas of gained and acid solution, oxidant and ferrous ion are subjected to catalysis oxidation under the action of nickel-base catalyst
Reaction, oxidant are hydrogen peroxide, and the time of catalytic oxidation is 20-40 seconds, and liquid air volume ratio is（5-15）：1, catalysis oxidation
The temperature of reaction is 30-60 DEG C, and acid solution be hydrochloric acid or oxalic acid, and the molar ratio of oxidant and ferrous ion is 1：（2-8）；
10）By step 6）In pyrolysis waste residue filled, by step 9）In tail gas react it is up to standard after discharged.
Embodiment 2
A kind of continuous greasy filth environment-friendly treating process, includes the following steps：
1）Oily sludge is recycled, the oily sludge recycled is placed into dehydrating tower, and it is de- to carry out machinery to oily sludge
Water；
2）By step 1）Oily sludge after middle carry out mechanical dehydration is placed into heating tower, and into heating tower, input heating is molten
Agent, heated solvent are blended in heating tower with oily sludge and carry out heating work, until the moisture in completely out greasy filth；
3）By step 2）In greasy filth carry out greasy filth pyrolysis, greasy filth pyrolysis include first pyrolysis and second pyrolysis, first be pyrolyzed
Absolute pressure be hundred pas of 750-850, temperature is 100-150 DEG C, and the absolute pressure of the second pyrolysis is less than 4,500 pas, and temperature is
150-300 DEG C, obtain pyrolysis waste residue and pyrogenic steam；
4）Pyrolysis waste residue and pyrogenic steam are put into combustion chamber, carry out the burning processing of first time；
5）By step 4）In pyrolysis waste residue and pyrogenic steam cooling after ten minutes, carry out second-time burning in a combustion chamber；
6）By step 5）In pyrolysis waste residue be sent into submittings after pyrolysis waste residue output device be cooled to 75 DEG C or less；
7）By step 5）In pyrogenic steam carry out cooling treatment, obtain cooling gas；
8）Cooling gas is fed through in reverse-flow alkali liquid washing tower, cooling gas is contacted using alkali wash water, gained
Alkali cleaning tail gas is sent out from the top of reverse-flow alkali liquid washing tower, and gained alkali wash water is exported from the alkali wash water of reverse-flow alkali liquid washing tower
It sends out；
9）The alkali cleaning tail gas of gained and acid solution, oxidant and ferrous ion are subjected to catalysis oxidation under the action of nickel-base catalyst
Reaction；
10）By step 6）In pyrolysis waste residue filled, by step 9）In tail gas react it is up to standard after discharged.
Preferably, step 1）In oily sludge carried out the sampling of online composition and measured, calculate crude oil OL, water W, silt particle
SR contents；Determine colloid JZ, the asphalitine LZ and paraffin SL ratios in the main ingredient that crude oil includes, it is described online at
It includes being measured twice at the top and bottom of oily sludge that part sampling, which measures, its ratio is calculated according to precipitation status；Wherein OL+W+SR=
100%, OL=JZ+LZ+SL；Each component ratio note that top sampling in the wherein described online composition sampling measurement determines
For：OL1, W1, SR1, JZ1, LZ1, SL1, each component ratio that bottom sampling determines are denoted as：OL2、W2、SR2、JZ2、
LZ2, SL2, the ratio after top and bottom measurement is comprehensive are estimated as：
OL=（OL1+OL2）/2,W=（W1+W2）/ 2, SR=（SR1+SR2）/2；
Preferably, the step 2）Greasy filth temperature after middle preheating is 250-400 DEG C.
Preferably, the step 2）In greasy filth the heated solvent in solid phase is isolated in extraction and separation tower, to heating
Solvent is recycled, and is recycled in heating tower.
Preferably, step 2）In the sampling of heated solvent SO ratios and the composition measure in OL it is related, specific formula
It is as follows：SO=（kOL+pW）* V, wherein k are solvent parameters, and p is dilution parameters, and V is greasy filth volume.
Preferably, the step 3）In the first pyrolysis time be 1-3 hour, the second pyrolysis time be 3-6 hours.
The step 4）In burning processing preferably when in heating tower air humidity be less than threshold value RH when stop burning, add
Air humidity is measured using high temperature resistant hygrometer in thermal tower；
The step step 5）In burning processing preferably when harmful gas concentration be less than threshold value HG when stop burning；Harmful gas
Bulk concentration is measured using SO2 or firedamp sensor；
Preferably, the step 9）In oxidant be hydrogen peroxide.
Preferably, the step 9）In time of catalytic oxidation be 20-40 seconds, liquid air volume ratio is（5-15）：
1, the temperature of the catalytic oxidation is 30-60 DEG C, and the acid solution is hydrochloric acid or oxalic acid, the oxidant and ferrous ion
Molar ratio be 1：（2-8）.
Preferably, the step 10）In reaction it is up to standard refer to that the concentration that is measured using harmful gas sensor is less than can
Discharge standard, the harmful gas sensor include the gas sensors such as CO, NO2, SO2, NH3, CH4.
Preferably, the step 4）In first time ignition temperature be 300-500 DEG C.
Preferably, the step 5）In second of ignition temperature be 500-800 DEG C.
Embodiment 3
A kind of continuous greasy filth environment-friendly treating process, includes the following steps：
1）Oily sludge is recycled, the oily sludge recycled is placed into dehydrating tower, and it is de- to carry out machinery to oily sludge
Water；
2）By step 1）Oily sludge after middle carry out mechanical dehydration is placed into heating tower, and into heating tower, input heating is molten
Agent, heated solvent are blended in heating tower with oily sludge and carry out heating work, until the moisture in completely out greasy filth；
3）By step 2）In greasy filth carry out greasy filth pyrolysis, greasy filth pyrolysis include first pyrolysis and second pyrolysis, first be pyrolyzed
Absolute pressure be hundred pas of 750-850, temperature is 100-150 DEG C, and the absolute pressure of the second pyrolysis is less than 4,500 pas, and temperature is
150-300 DEG C, obtain pyrolysis waste residue and pyrogenic steam；
4）Pyrolysis waste residue and pyrogenic steam are put into combustion chamber, carry out the burning processing of first time；
5）By step 4）In pyrolysis waste residue and pyrogenic steam cooling after ten minutes, carry out second-time burning in a combustion chamber；
6）By step 5）In pyrolysis waste residue be sent into submittings after pyrolysis waste residue output device be cooled to 75 DEG C or less；
7）By step 5）In pyrogenic steam carry out cooling treatment, obtain cooling gas；
8）Cooling gas is fed through in reverse-flow alkali liquid washing tower, cooling gas is contacted using alkali wash water, gained
Alkali cleaning tail gas is sent out from the top of reverse-flow alkali liquid washing tower, and gained alkali wash water is exported from the alkali wash water of reverse-flow alkali liquid washing tower
It sends out；
9）The alkali cleaning tail gas of gained and acid solution, oxidant and ferrous ion are subjected to catalysis oxidation under the action of nickel-base catalyst
Reaction；
10）By step 6）In pyrolysis waste residue filled, by step 9）In tail gas react it is up to standard after discharged.
Preferably, step 1）In oily sludge carried out the sampling of online composition and measured, calculate crude oil OL, water W, silt particle
SR contents；Determine colloid JZ, the asphalitine LZ and paraffin SL ratios in the main ingredient that crude oil includes, it is described online at
It includes being measured twice at the top and bottom of oily sludge that part sampling, which measures, its ratio is calculated according to precipitation status；Wherein OL+W+SR=
100%, OL=JZ+LZ+SL；Each component ratio note that top sampling in the wherein described online composition sampling measurement determines
For：OL1, W1, SR1, JZ1, LZ1, SL1, each component ratio that bottom sampling determines are denoted as：OL2、W2、SR2、JZ2、
LZ2, SL2, the ratio after top and bottom measurement is comprehensive are estimated as：
OL=（OL1+OL2）/ 2, W=（W1+W2）/ 2, SR=（SR1+SR2）/2；
Preferably, the step 2）Greasy filth temperature after middle preheating is 250-400 DEG C.
Preferably, the step 2）In greasy filth the heated solvent in solid phase is isolated in extraction and separation tower, to heating
Solvent is recycled, and is recycled in heating tower.
Preferably, step 2）In the sampling of heated solvent SO ratios and the composition measure in OL it is related, specific formula
It is as follows：SO=（kOL+pW）* V, wherein k are solvent parameters, and p is dilution parameters, and V is greasy filth volume.
The step 5）In burning processing preferably when harmful gas concentration be less than threshold value HG when stop burning；Harmful gas
Bulk concentration is measured using SO2 or firedamp sensor；
Preferably, the step 10）In reaction it is up to standard refer to that the concentration that is measured using harmful gas sensor is less than and can be discharged
Standard, the harmful gas sensor include the gas sensors such as CO, NO2, SO2, NH3, CH4.
Preferably, above-mentioned to be used for step 5）With step 10）In each harmful gas sensor gathered data by data
Acquisition module is sent after unifying gathered data to controller processing, and controller can also control mechanical dehydration, oil in each step
The processes such as the online Determination of composition of mud, pyrolysis and burning realize the automatic operating of greasy filth environmental protection treatment, accurately control each step
Implementation.
The beneficial effects of the invention are as follows：The continuous greasy filth environment-friendly treating process, using second-time burning method, to pyrolysis waste residue with
And pyrolysis gas carries out twice combustion processing, it is therefore prevented that greasy filth may be pyrolyzed incomplete problem in pyrolytic process, will be hot
The solution not exclusively remaining chemical substance of institute carries out burning processing, while carrying out environmental protection treatment to tail gas caused by greasy filth, prevents
Pollution of the follow-up discharge to environment is conducive to big to substantially increase the using effect of the continuous greasy filth environment-friendly treating process
The popularization of scale.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of continuous greasy filth environment-friendly treating process, which is characterized in that include the following steps：
1）Oily sludge is recycled, the oily sludge recycled is placed into dehydrating tower, and it is de- to carry out machinery to oily sludge
Water；
2）By step 1）Oily sludge after middle carry out mechanical dehydration is placed into heating tower, and into heating tower, input heating is molten
Agent, heated solvent are blended in heating tower with oily sludge and carry out heating work, until the moisture in completely out greasy filth；
3）By step 2）In greasy filth carry out greasy filth pyrolysis, greasy filth pyrolysis include first pyrolysis and second pyrolysis, first be pyrolyzed
Absolute pressure be hundred pas of 750-850, temperature is 100-150 DEG C, and the absolute pressure of the second pyrolysis is less than 4,500 pas, and temperature is
150-300 DEG C, obtain pyrolysis waste residue and pyrogenic steam；
4）Pyrolysis waste residue and pyrogenic steam are put into combustion chamber, carry out the burning processing of first time, and burning time is 10-30 points
Clock；
5）By step 4）In pyrolysis waste residue and pyrogenic steam cooling after ten minutes, carry out second-time burning in a combustion chamber, fire
It is 5-15 minutes to burn the time；
6）By step 5）In pyrolysis waste residue be sent into submittings after pyrolysis waste residue output device be cooled to 75 DEG C or less；
7）By step 5）In pyrogenic steam carry out cooling treatment, obtain cooling gas；
8）Cooling gas is fed through in reverse-flow alkali liquid washing tower, cooling gas is contacted using alkali wash water, gained
Alkali cleaning tail gas is sent out from the top of reverse-flow alkali liquid washing tower, and gained alkali wash water is exported from the alkali wash water of reverse-flow alkali liquid washing tower
It sends out；
9）The alkali cleaning tail gas of gained and acid solution, oxidant and ferrous ion are subjected to catalysis oxidation under the action of nickel-base catalyst
Reaction；
10）By step 6）In pyrolysis waste residue filled, by step 9）In tail gas react it is up to standard after discharged.
2. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 2）Middle preheating
Greasy filth temperature afterwards is 250-400 DEG C.
3. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 2）In oil
Mud isolates the heated solvent in solid phase in extraction and separation tower, is recycled to heated solvent, is recycled in heating tower
It uses.
4. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 3）In first
Pyrolysis time is 1-3 hours, and the second pyrolysis time is 3-6 hours.
5. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 9）In oxygen
Agent is hydrogen peroxide.
6. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 9）In urge
The time of oxidation is 20-40 seconds, and liquid air volume ratio is（5-15）：1, the temperature of the catalytic oxidation is 30-60
DEG C, the acid solution is hydrochloric acid or oxalic acid, and the molar ratio of the oxidant and ferrous ion is 1：（2-8）.
7. according to a kind of continuous greasy filth environment-friendly treating process of claim 1-6 any one of them, which is characterized in that the step
4）In first time ignition temperature be 300-500 DEG C.
8. according to a kind of continuous greasy filth environment-friendly treating process of claim 1-7 any one of them, which is characterized in that the step
5）In second of ignition temperature be 500-800 DEG C.
9. a kind of continuous greasy filth environment-friendly treating process according to claim 1, which is characterized in that the step 1）In contain
Greasy dirt has carried out online composition sampling and has measured, and calculates crude oil OL, water W, silt particle SR contents；Determine the master that crude oil includes
Colloid JZ, the asphalitine LZ in composition and paraffin SL ratios are wanted, it includes at the top of oily sludge that the online composition sampling, which measures,
It is measured twice with bottom.
10. a kind of continuous greasy filth environment-friendly treating process according to claim 9, which is characterized in that the step 2）In
Heated solvent SO ratios and the relationship of crude oil OL and moisture content W in composition sampling measurement are：SO=（kOL+pW）* V,
Wherein k is solvent parameter, and p is dilution parameters, and V is greasy filth volume.
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| CN110054383A (en) * | 2019-05-10 | 2019-07-26 | 马平 | The pyrolysis processing method of oily sludge |
| CN110763719A (en) * | 2019-11-14 | 2020-02-07 | 西南石油大学 | Experimental device and method for thermal cracking of thickened oil into coke in-situ combustion process |
| CN111268884A (en) * | 2020-03-31 | 2020-06-12 | 浙江科茂环境科技有限公司 | Oil sludge treatment system and method |
| TWI765079B (en) * | 2018-07-31 | 2022-05-21 | 張偉民 | Method for treating crude oil tank bottom sludge |
| CN114751614A (en) * | 2022-05-17 | 2022-07-15 | 大庆中林绿源生物环保有限公司 | Technology for treating loose modified pyrolytic oil sludge |
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