CN209555152U - A kind of pretreatment unit of oily sludge - Google Patents
A kind of pretreatment unit of oily sludge Download PDFInfo
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- CN209555152U CN209555152U CN201920033108.9U CN201920033108U CN209555152U CN 209555152 U CN209555152 U CN 209555152U CN 201920033108 U CN201920033108 U CN 201920033108U CN 209555152 U CN209555152 U CN 209555152U
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- wash tank
- oily sludge
- pretreatment unit
- auger
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Abstract
The utility model discloses a kind of pretreatment units of oily sludge, including hot wash tank and the feed hopper of hot wash tank top is set, the feed hopper lower part is connected with grid basket, and heating coil is provided in hot wash tank, and penetration heat cleaning of evaporator bottom level is equipped with auger；Material in hot wash tank is pumped into high speed agitator by screw rod and is demulsified.The utility model washes oily sludge by the way that the hot water of medicament is added, reduce the viscosity of oily sludge, efficiently separate crude oil with solid particle, and it is demulsified by high speed agitator to the mixed solution after removing solid phase, it realizes preliminary water-oil separating, reduces the processing load of subsequent processing link.The utility model can realize continuous feed and discharging of the oily sludge in pretreatment unit, efficiently separate the impurity in oily sludge, ensure that the normal operation of subsequent process equipment can greatly improve subsequent technique to the treatment effect of oily sludge by hot wash and demulsification.
Description
Technical field
The utility model relates to disposal of oily sludge field more particularly to it is a kind of using chemico-heating wash method to oily sludge into
The pretreated device of row.
Background technique
Oily sludge refers to that petroleum is being exploited, refining, in production and processing and transportational process, due to being mixed into soil and other
Classes of compounds and cause wherein petroleum component that cannot be used effectively and a kind of complicated composition formed and the danger for polluting environment
Dangerous waste.It is mainly organized as moisture, clay particle, chemical agent, organic matter, microorganism and its metabolite and mineral oil
Deng, wherein moisture content be 10-50%, oil content 10-40%, slag-containing rate 10-30%.And the exploitation with the world to petroleum
Measure growing day by day, the yield of oily sludge also shows an increasing trend year by year.According to statistics, China's Daqing oil field is generated every year containing greasy dirt
Mud is 140,000 sides, and Shengli Oil Field is 100,000 tons or more, and being deposited in Oil Field there are also a large amount of oily sludge of former years generation does not have
It is processed.So a large amount of oily sludge is not only bulky, and can occupy a large amount of arable lands, and to surrounding soil, water body and
Air will all pollute.Oily sludge generates during long-term stack with foul gas, also contains a large amount of cause of disease
Bacterium, helminth (ovum), the heavy metals such as Yi Jitong, zinc, cadmium, mercury, and have a large amount of salt, Polychlorinated biphenyls, dioxin and radiation
The poisonous and harmful substances difficult to degrade such as property nucleic, seriously pollute local environment, endanger human health, therefore urgently effectively located
Reason.
Since the harm of oily sludge is great, according to " National Hazard waste register " (2018 editions), oily sludge is arranged
Enter the waste classification of HW08 waste mineral oil Yu the waste containing mineral oil, thus disposal of oily sludge be Environment protection of oil field with it is sustainable
The major issue of development is generally handled from minimizing, innoxious and three research directions of recycling, common processing at present
Method includes incineration method, and solvent extraction, bioanalysis, pyrogenic process, oily sludge is quenched, and chemico-heating wash method and oily sludge are comprehensive
It utilizes.It wherein comprehensively utilizes and paves the way including the use of oily sludge, brickmaking, and production honeycomb briquette etc., in addition to some of the above routine
Processing method, there are also ground till, oily sludge solidification method, chemical demulsification method, solid-liquid isolation methods and land fill etc..It is external
There are also oily sludge low temperature pyrogenation technologies, and using the method etc. of solvent and low-frequency sound wave separation greasy filth.Wherein chemico-heating wash
The advantages such as method has treatment conditions mild, and treatment effeciency is high, and processing speed is fast obtain a large amount of promotion and application in recent years.
Chemico-heating wash method is sufficiently mixed by the way that certain chemical agent and oily sludge is added, and is increased to one
The further viscosity reduction of temperature is determined, to realize the processing side for separating and recycling a kind of Chemical Physics of oil in oily sludge and combine
Method.Oily sludge is generally collectively constituted by oil-in-water, Water-In-Oil and suspended solid, belongs to the colloidal dispersion of multiphase, composition compared with
For complexity.Since oily sludge particle surface adsorbs like charges, repel between each other, it is in addition fully emulsified, it is extremely difficult to it is de- steady, make
Oily, water is obtained, mud three-phase is difficult to separate.
Utility model content
In view of the problems of the existing technology, the purpose of this utility model is that the principle based on chemico-heating wash method provides one kind
The pretreatment unit of oily sludge realizes the removal of impurities of oily sludge, takes off steady, viscosity reduction, demulsification, and to carry out greasy filth in follow-up equipment
Separation and recycling lay the foundation.
To achieve the above object, technical solutions of the utility model are as follows:
Including hot wash tank and the feed hopper of hot wash tank top is arranged in a kind of pretreatment unit of oily sludge, it is described into
Hopper lower part is connected with grid basket, and heating coil is provided in hot wash tank, and penetration heat cleaning of evaporator bottom level is equipped with auger；
Material in hot wash tank is pumped into high speed agitator by screw rod and is demulsified.
Further, drug-feeding tube is installed, interval is laid with several into medicine on drug-feeding tube on the inner sidewall of the feed hopper
Mouthful.
Further, the bottom wall of the hot wash tank is the arc surface to match with the auger.
Further, the grid basket is rotatable is connected to below the feed hopper, and is immersed in inside the hot wash tank
Liquid in.
Further, the outer wall of the hot wash tank is provided with insulating layer, is internally provided with temperature sensor in hot wash tank.
Further, direction of rotation is installed and the first helical blade and second that outer diameter is all different on the auger
Helical blade.
Further, the minimum point of the auger and the spacing of the hot wash pot bottom are 1-3cm.
Further, the spacing of the highest point of the auger and grid basket bottom is 5-10cm.
Further, the top side detachable of the hot wash tank is equipped with arch top cover, and the feed hopper is set to arch top cover
Center opening on.
Further, the high speed agitator is horizontal mixer, is horizontally installed with mixing blade in high speed agitator.
The utility model intercepts the impurity entered in pretreatment unit in oily sludge by grid basket, reduces
Impurity stirs the risk of interferences of subsequent process equipment into the oily sludge in hot wash tank by the medicament being added in lower part helical
It washes under the action of mixing, and oily sludge mixed liquor is heated repeatedly by heating coil, reduce the viscous of oily sludge
Degree, efficiently separates crude oil with solid particle, mixes oily sludge and medicament adequately by the effect of hot wash tank
It closes, becomes the fluid of homogeneous, the injection of greasy filth mixed liquor is extracted by the discharge port of the curved bottom of hot wash tank using screw pump
High speed agitator further carries out high-speed stirred demulsification to mixed solution, reduces petroleum component in the attachment on silt surface, after making
Continuous oil-water separation is more efficient.The utility model has structure simple, and compact layout is energy saving, and processing cost is cheap
The advantages that, it can be achieved that continuous feed and discharging of the oily sludge in pretreatment unit, efficiently separate the impurity in oily sludge,
Ensure that the normal operation of subsequent process equipment can greatly improve subsequent technique to the place of oily sludge by hot wash and demulsification
Manage effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the pretreatment unit of the oily sludge in embodiment；
Fig. 2 is the top view of the pretreatment unit of the oily sludge in embodiment；
Fig. 3 is the structural schematic diagram of the auger in embodiment；
Fig. 4 is the heating coil structural schematic diagram in embodiment.
In figure: 1 hot wash tank；2 arch top covers；3 feed hoppers；4 grid baskets；5 grid basket motors；6 feeding openings；7 augers；
The first helical blade of 7a；The second helical blade of 7b；8 auger motors；9 auger speed reducers；10 heating coils；11 is thermally conductive
Oil pump；12 heat-conducting oil furnaces；13 screw pumps；14 high speed agitators；15 discharge gates；16 control cabinets.
Specific embodiment
For the design philosophy for clearly demonstrating the utility model, the utility model is illustrated below with reference to example.
Embodiment
As shown in Figs. 1-2, the pretreatment unit of one of the utility model oily sludge includes that hot wash tank 1 and setting exist
The feed hopper 3 at 1 top of hot wash tank, the underface of feed hopper 3 are provided with grid basket 4, are arranged apart from 1 inner sidewall 5-10cm of hot wash tank
There is the back-shaped heating coil 10 heated to material in tank, bottom level is equipped with auger 7 in penetration heat cleaning of evaporator 1；Hot wash tank 1
Interior material is sent into high speed agitator 14 by screw pump 13 and is demulsified to material.
The feed hopper 3 that oily sludge is sent into opened type by stacking point by digging machine or bucket elevator by the present embodiment,
Feed hopper 3 is set in 2 center opening of arch top cover of 1 top side detachable of hot wash tank installation, is equipped in the lower section of feed hopper 3
Grid basket 4, grid basket 4 are the bucket type basket for the grid composition that gap is 1-2cm, and the width of grid is 1-3cm, and grid basket 4
It can be driven and be rotated by grid basket motor 5, revolving speed controls between 50-100r/min.Grid basket 4 is immersed in hot wash tank 1
In hot water containing chemical agent.After material enters feed hopper 3, grid basket 4 is fallen into, then starts grid basket 4 and starts to rotate,
Under the influence of centrifugal force, greasy filth is constantly washed away by the hot water in tank containing medicament into hot wash tank 1 in basket, miscellaneous in greasy filth
Matter (such as polybag, gloves, stone, iron filings etc.) remains in grid basket 4, and then periodic cleaning can remove.The present embodiment
Middle grid basket 4 is specifically 2cm by width, and the grid that gap is 2cm is constituted, revolving speed 80r/min.
It is close on the inner sidewall of feed hopper 3, drug-feeding tube is installed, interval is laid with several feeding openings 6 on drug-feeding tube, uses
Greasy filth in feed hopper is rinsed in conveying high-pressure medicament, falls into it in grid basket of lower section.Specifically, the present embodiment
In feeding opening 6 be round tube that three internal diameters stretched out on drug-feeding tube are 20mm, dosing is delivered medication by dosing pump
Guan Hou forms high speed jet in 6 position of feeding opening, can be rinsed to greasy filth in feed hopper 3, with anti-clogging.Pass through grid basket 4
The greasy filth in hot wash tank 1 is continuously entered, is constantly mixed under the action of 1 bottom horizontal spiral of hot wash tank stirring 7, and by into medicine
The chemical agents that mouth 6 is continuously replenished, so that oily sludge under the action of stirring and medicament, constantly disperses, constitutes stable stream
Change state, mutually effective and silt carries out initial gross separation by the oil in oily sludge.In the present embodiment, 1 section of hot wash tank is upper
Half portion is divided into rectangle, and bottom is the arc surface to match with auger 7, entire body section be it is U-shaped, this kind of set-up mode can increase
Strong buffering of the greasy filth in infall process, it is significantly more efficient to separate oily phase from greasy filth.Hot wash tank 1 in the present embodiment
For carbon steel material, it can also be glass steel material, the corrosion resistance of hot wash tank 1 can be enhanced, extend hot wash tank 1 uses the longevity
Life.
Referring to Fig. 3, helicoid direction of rotation is installed on the auger 7 in the present embodiment and outer diameter is all different
One helical blade 7a and the second helical blade 7b, specifically, two helical blades are a positive and a negative both direction, the first spiral
Outer diameter of the outer diameter of blade 7a less than the second helical blade 7b.Between the minimum point of auger 7 and the curved bottom of hot wash tank 1
Spacing be 2cm, spacing between highest point and the bottom of grid basket 4 is 8cm, and auger 7 is by being arranged outside hot wash tank 1
Rotation is realized in auger motor 8 and auger speed reducer 9 cooperation in portion.The purpose of this kind setting on the one hand spiral shell in order to prevent
Rotation stirring 7 generates friction with 1 bottom wall of hot wash tank, on the other hand ensure that the sedimentation spacing of oily sludge, so that stirring is more filled
Point, it prevents from forming dead angle.Oily sludge also will form the preliminary dispersion of oily phase and solid phase after preliminary hot wash, in infall process,
Guarantee later separation effect.It is mounted on the horizontal forward-reverse spiral blade of 1 bottom of hot wash tank, after removing impurity by grid basket 4
Greasy filth and chemical agent carry out being sufficiently mixed stirring, and the double helix blade shape of the stirring can guarantee in material in transportational process
In not only without dead angle, and low energy consumption, and mixing efficiency is high.The revolving speed general control of auger 7 is in 0-100r/min, in this reality
Applying specific revolving speed in example is 80r/min, and auger revolving speed can be adjusted on demand.
Referring to fig. 4, the heating coil 10 in the present embodiment is the back-shaped heating coil 10 apart from hot wash tank inner sidewall 10cm,
By the constantly injection of Heat-transfer Oil Pump 11 and the conduction oil after the heating of heat-conducting oil furnace 12 in it, so constantly by the heat of conduction oil
Greasy filth mixed solution is passed to, its heating is made.Specifically, heat-conducting oil furnace adds the conduction oil of heating by Heat-transfer Oil Pump injection
Hot coil heats solution in hot wash tank, and conduction oil is in Heat-transfer Oil Pump 11, heating coil 10 and heat-conducting oil furnace 12
Between internal circulation.The temperature of mixed solution passes through control cabinet by the temperature sensor real-time monitoring being arranged inside hot wash tank 1
16 can set required temperature and heating speed, and the outer wall of hot wash tank 1 is provided with insulating layer, can effectively prevent heat loss, section
The general thermal insulating material such as rock wool in the prior art or polyurethane foam can be selected in about energy consumption, the insulating layer in the utility model
Material.Under normal operating conditions, for hot water temperature's control in hot wash tank 1 at 50-80 DEG C, the temperature of conduction oil is 250-280
DEG C, the flow of Heat-transfer Oil Pump 11 is 5-10m3/h.According to work needed for live actual treatment amount and different types of oily sludge
Skill requirement, can be adjusted the parameters such as above-mentioned temperature and flow, however it is not limited to which above-mentioned range, which is not described herein again.Adding
In addition to being passed through conduction oil in hot coil 10, it can be also passed through low pressure steam or high-temperature-hot-water, by steam or hot water to hot wash
Material is heated in tank 1.Except of course that using the form of heating coil 10, can be also directly passed through into hot wash tank 1 steam or
Person's hot water mixes steam or hot water with material in tank, to promote the temperature of mixed solution.What is be arranged in hot wash tank 1 adds
Uniform to greasy filth mixed solution in container, stable, quick add may be implemented in hot coil 10 and the heat medium being wherein passed through
Heat adjusts the flow of Heat-transfer Oil Pump 11 to greasy filth in container by control cabinet 16 by temperature sensor Real-time Feedback temperature
The control of mixed solution temperature.
After the greasy filth mixed solution heating and stirring time in hot wash tank 1 reaching preset value, it will be added by screw pump 13
Fluidisation state greasy filth mixed solution after heat injects high speed agitator 14, and high speed agitator 14 can not only promote greasy filth and chemical agent
Abundant reaction, moreover it is possible to water-oil separating is made by the powerful centrifugal force of high-speed stirred, have efficient demulsification, by demulsification
Mixed solution afterwards enters subsequent process by discharge gate 15.High speed agitator 14 in the present embodiment is cylindric
Horizontal mixer, multiple groups mixing blade is horizontally installed in high speed agitator 14, and the revolving speed of blender is 1500r/min, this reality
It is not limited to above-mentioned revolving speed with the high speed agitator in novel, can be needed according to scene specifically to adjust the size of revolving speed.
It is further illustrated below for the treatment process of oily sludge in the present invention:
Oily sludge is in specific treatment process, first by digging machine or bucket elevator (with specific reference to live item
Depending on part) it is sent into feed hopper 3, it is washed away in the medicament of feeding opening 6 and enters grid basket 4 under gravity, grid basket motor 5 drives
Grid basket 4 rotates, and in hot wash tank 1 under the sluicing of chemical agent, greasy filth is constantly washed into hot wash tank 1 in grid basket 4,
Starting be installed on 1 bottom of hot wash tank horizontal spiral stirring 7, by hot wash tank 1 greasy filth and chemical agent be sufficiently mixed stirring,
Start Heat-transfer Oil Pump 11, transmitting heat by back-shaped heating coil 10 makes greasy filth mixed solution heat up, and sets by control cabinet 16
Required temperature simultaneously controls 11 flow of Heat-transfer Oil Pump to adjust temperature raising speed, condition (reaction time, the temperature) in hot wash tank 1
After reaching pre-provisioning request, greasy filth mixed solution injection high speed agitator 14 in hot wash tank 1 is demulsified by starting screw pump 13, and
Greasy filth mixed solution after the discharge demulsification of its discharge gate 15.
The heat source of heat-conducting oil furnace 12 uses electric heating type or combustion heating type, depending on oil field condition.Heat source
By the heat-conducting oil heating in heat-conducting oil furnace 12 to 250-280 DEG C, by Heat-transfer Oil Pump 11 be injected into back-shaped in hot wash tank 1 plus
Hot coil 10, after heat exchange, the lower conduction oil of temperature is recycled into heat-conducting oil furnace 12 to be heated again by heat source, is so followed
Ring is reciprocal, until the solution in hot wash tank 1 is increased to set temperature.
In order to realize continuous feed and discharging, after condition (reaction time, temperature) reaches requirement in hot wash tank 1, open
Blow-off valve starts screw pump 13 and extracts greasy filth mixed solution out, and constantly adds new oily sludge and enter from feed hopper 3, and keep
The flow Q of material disengaging is identical, then the dischargeable capacity V/ flow Q of residence time T=hot wash tank 1 of the material in hot wash tank 1, leads to
Control flow Q is crossed to adjust the size of residence time T.
It is needing to illustrate in addition, heating coil is in addition to back-shaped coil pipe, can also be the snake installed on hot wash tank inner sidewall
Shape coil pipe, or using forms such as electrical heating；The identical helical blade in the same direction of outer diameter can also be used in auger, needs to meet
Horizontal transport requirement etc. of the solid-phase material in hot wash pot bottom.
It needs exist for being important to note that, the pretreatment unit of the oily sludge of the utility model can realize continuous feed and go out
Material, greatly improves the treatment effeciency of subsequent oily sludge, effectively save processing time and cost, has in disposal of oily sludge field
There is high practical value.
Finally, it will be appreciated that embodiment of above is merely to illustrate that the principles of the present invention and uses
Illustrative embodiments, however the utility model is not limited thereto.For those of ordinary skills, it is not departing from
In the case where the principles of the present invention and essence, various changes and modifications can be made therein, these variations and modifications are also considered as this
The protection scope of utility model.
Claims (10)
1. a kind of pretreatment unit of oily sludge, which is characterized in that including hot wash tank and be arranged in the charging of hot wash tank top
Bucket, the feed hopper lower part are connected with grid basket, heating coil are provided in hot wash tank, and penetration heat cleaning of evaporator bottom level is equipped with
Auger；Material in hot wash tank is pumped into high speed agitator by screw rod and is demulsified.
2. pretreatment unit as described in claim 1, which is characterized in that be equipped on the inner sidewall of the feed hopper into medicine
It manages, interval is laid with several feeding openings on drug-feeding tube.
3. pretreatment unit as described in claim 1, which is characterized in that the bottom wall of the hot wash tank be and the auger
The arc surface to match.
4. pretreatment unit as described in claim 1, which is characterized in that the grid basket is rotatable to be connected to the charging
Bucket lower section, and be immersed in the liquid inside the hot wash tank.
5. pretreatment unit as claimed in claim 4, which is characterized in that the outer wall of the hot wash tank is provided with insulating layer, In
Hot wash tank is internally provided with temperature sensor.
6. pretreatment unit as claimed in claim 3, which is characterized in that be equipped with direction of rotation and outer on the auger
The first helical blade and the second helical blade that diameter is all different.
7. pretreatment unit as claimed in claim 3, which is characterized in that the minimum point of the auger and the hot wash tank
The spacing of bottom is 1-3cm.
8. pretreatment unit as claimed in claim 3, which is characterized in that the highest point of the auger and the grid basket
The spacing of bottom is 5-10cm.
9. pretreatment unit as claimed in claim 2, which is characterized in that the top side detachable of the hot wash tank is equipped with arch
Top cover, the feed hopper are set in the center opening of arch top cover.
10. pretreatment unit as described in claim 1, which is characterized in that the high speed agitator is horizontal mixer, high speed
Mixing blade is horizontally installed in blender.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920033108.9U CN209555152U (en) | 2019-01-09 | 2019-01-09 | A kind of pretreatment unit of oily sludge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920033108.9U CN209555152U (en) | 2019-01-09 | 2019-01-09 | A kind of pretreatment unit of oily sludge |
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| CN209555152U true CN209555152U (en) | 2019-10-29 |
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ID=68305690
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402136A (en) * | 2021-06-17 | 2021-09-17 | 浙江宜可欧环保科技有限公司 | Oily sludge screening and hot washing combined pretreatment method and device |
-
2019
- 2019-01-09 CN CN201920033108.9U patent/CN209555152U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113402136A (en) * | 2021-06-17 | 2021-09-17 | 浙江宜可欧环保科技有限公司 | Oily sludge screening and hot washing combined pretreatment method and device |
| CN113402136B (en) * | 2021-06-17 | 2023-10-24 | 浙江宜可欧环保科技有限公司 | Oil-containing sludge screening and heat washing combined pretreatment method and device |
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