CN106904812A - It is a kind of to dry the process that oil-sand cures thin mine tailing - Google Patents
It is a kind of to dry the process that oil-sand cures thin mine tailing Download PDFInfo
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- CN106904812A CN106904812A CN201710190170.4A CN201710190170A CN106904812A CN 106904812 A CN106904812 A CN 106904812A CN 201710190170 A CN201710190170 A CN 201710190170A CN 106904812 A CN106904812 A CN 106904812A
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- sludge
- oil
- sand
- mine tailing
- raw material
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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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention discloses a kind of process for drying the oil-sand thin mine tailing of curing, is related to treatment oily mud in oil refinery, oil-sand to cure thin mine tailing and sludge of sewage treatment plant field.It is to be constituted with multilayer convolution many covering devices of the drying machine as essential building blocks, rotary shaft is vertically arranged with multilayer convolution dryer inner center, through the grid disk of the uniform stacking parallel arrangement perpendicular to rotary shaft, described grid disk is special construction, enable to be circled round conveying sludge by agitator thereon, therefore greasy filth, sludge be distributed on grid disk and be heated it is more uniform, so as to the drying stablized.The present invention is directly heated mode and is dried oil sand tailing, greasy filth, sludge using superheated steam, can recovery waste heat, realize the direct contact type dry technology of safe and stable operation, with larger practical value and be widely applied prospect.
Description
Technical field
The invention belongs to technical field of sludge treatment, and in particular to a kind of to dry the process that oil-sand cures thin mine tailing.
Background technology
All the time, extraction of the oil sand industry principal concern in oil-sand studies on asphaltene.As people are to environmental problem
The pollutions such as concern, mine tailing, waste water, the waste gas that oil sand industry is produced are increasingly becoming the key issue of restriction oil sand industry development.Cause
This, into 21 century, various oil-sand pollutant control technologies enter development.
Classified according to technological principle, existing oil sand tailing treatment technology can mainly be divided into following five major class：1) thing
Reason/mechanical treatment technology；2) natural treatment technology；3) chemical/biological recovery technique；4) mixture/joint processing technology；5) forever
Long memory technology；In the major class technical method of the above five, physical/mechanical treatment technology is still in research and application verification stage, not
Realize commercial size application.Other four classes technologies have certain commercial size application example, but in application process, exist
Certain problem.Problem such as following table present in existing commercialization tailings glass technology：
In sum, it is necessary to the drawbacks of overcoming traditional commerce tailings glass technology, a kind of new Treatment of Sludge is obtained
Technique, reaches effective use of energy sources, and the purpose for drying oil sand tailing, greasy filth, sludge is obtained with more economical process conditions.
The content of the invention
For the problem of above-mentioned background technology, the present invention discloses a kind of process for drying the oil-sand thin mine tailing of curing, relates to
And treatment oily mud in oil refinery, oil-sand cure thin mine tailing and sludge of sewage treatment plant field.Recovery waste heat, realizes safe and stable fortune
Capable direct contact type dry technology.Mode is directly heated using superheated steam and dries oil sand tailing, greasy filth, sludge.The side
Method specifically mainly includes that multilayer convolution drier structure unit is as follows：
One, multilayers convolution drying machine
The multilayer convolution drying machine is enclosed construction, and portion center is vertically arranged with rotary shaft in the inner, vertical solid
It is connected in the grid disk of the uniform stacking parallel arrangement of rotary shaft, described grid disk one end is pressed close to the inwall of multilayer convolution drying machine, separately
One end is free end, and the free end of the adjacent two layers grid disk is located at the relative both sides of rotary shaft；In the end of the free end
Weir is retained in being provided with vertical direction, and the space retained between the inwall of weir and multilayer convolution drying machine is overfall, grid
On disk symmetrical centered on rotary shaft and be uniformly distributed with the hole with agitator, the stirring flapwise rotary shaft direction is inclined
Oblique angle is acute angle.
It is former sludge to be provided with for technique described above scheme, on the side wall at the top of multilayer convolution drying machine
Material entrance, described sludge feed(raw material)inlet is connected by pipeline with sludge hopper.
In for technique described above scheme, the side relative with the sludge feed(raw material)inlet on multilayer convolution drying machine
On wall, high-temperature steam entrance is additionally provided with；Described high-temperature steam entrance is connected by pipeline with heat exchanger.
In for technique described above scheme, the multilayer convolution dry motor spindle be provided with dry sludge derive
Mouthful；The described sludge export mouth that dries is connected by pipeline with sludge storage tank is dried.
In for technique described above scheme, steam row is provided with the side wall that multilayer convolution dries motor spindle
Outlet；Described steam outlet is connected by pipeline, the successively bottom with cyclone separator and heat exchanger.
In for technique described above scheme, the heat exchanger top is provided with high-temperature steam entrance, and bottom is provided with
Reduced temperature steam outlet.
Two, technical process：
Pending mud raw material enters multilayer convolution drying machine by sludge hopper and sludge feed(raw material)inlet, and by rotation
The agitator for turning, after the superheated steam being passed through with high-temperature steam entrance is sufficiently mixed, in lasting whipping process downwards
Conveying, specifically, pending mud raw material is dried with the superheated steam directly contact of circulation, from upper strata agitator while dry
Dry one side is delivered to lower floor's agitator, is finally dried during sludge export mouth is expelled to and dries sludge storage tank from orlop, is done
Dry rear sludge, is drawn by air-introduced machine and dries sludge.Described sludge raw material transmission means in the horizontal direction is, with rotation
The rotation of rotating shaft is on ground floor grid disk to one end horizontal transport for setting retention weir.Described sludge raw material is in vertical direction
Transmission means is first to be conveyed to next grid disk by being vertically arranged overfall on ground floor grid disk；Weir of damming is prevented from
Sludge raw material on grid disk is thrown to multilayer and is circled round the machine wall of drying machine in rotary course because of centrifugal force because rotation produce from
The stop of mental and physical efforts and dam weir, agitator, sludge raw material by hole vertical downward movement, but will not go downwards to along overfall
Next layer of grid disk.
On the other hand, the setting purpose of the cyclone separator is entrained oil mud or oil-sand, rotation in trapping discharge steam
The greasy filth or oil-sand that wind separator bottom is trapped are entered and dry sludge storage tank；The setting purpose of heat exchanger is and high-temperature steam
Heat exchange, makes high-temperature steam reach multilayer convolution drying machine steam operating temperature, while the Low Temperature Steam of discharge temperature after heat exchange
Degree gets a promotion, and makes full use of steam thermal energy.
3rd, the characteristics of this technique
1) superheated steam directly heats mode advantage：Process stabilizing, and drying of the moisture content below 10% is to hold
Easily realize；With the safety of the directly contact of superheated steam, can prevent oil-containing mud sand from burning；Specific heat is big, efficiency high；For drying
Superheated steam, between drying machine and steam heater circulate, its process is simple simultaneously be easy to operation, it is not necessary to boiler, it is easy to
Maintenance.
2) multi-ply construction advantage：Internal grid disk is special construction so that can be circled round conveying by agitator thereon
Sludge, therefore greasy filth, sludge is distributed on grid disk and is heated more uniform, is not in adhesion of the sludge in heat-transfer area, and burn
Burnt failure, what can be stablized is dried.
3) oil gas, foul smell composition are decomposed：The water vapour containing oil gas, foul smell in drying process, by follow-up heat source furnace
Decomposition can be burned.Additionally, because being the operation under negative pressure, foul smell will not be leaked.
4) dry after greasy filth, sludge fuel value it is high：Make superheated steam (normal pressure) and sludge directly contact due to using
Mode, therefore, it is possible to retaining greasy filth, to stably obtain moisture content in sludge in the case of propellant composition dry below 10%
Dry sludge.
5) using low-temperature waste heat：Multilayer convolution drying system is one carries out dry system for a long time when sludge is stirred
System, therefore, it is possible to effectively utilize the low-temperature heat sources such as factory's used heat as drying source.
6) carrying capacity of environment is reduced：The discharge steam produced in dried process belongs to the evaporation moisture in sludge and partly leaks into
Air in system, therefore, it is possible to reduce the treatment load of the discharge steam containing foul smell composition.
Character of innovation of the invention is：
1) ensure that biomass fuel stabilization is supplied：By continuously receiving sewage sludge, it can be ensured that with higher
The biomass fuel stabilization of fuel value is supplied.
2) effective use of energy sources：During using factory's used heat (250~350 DEG C), future combat system can be effectively utilized, created
Go out the biomass fuel with new energy value.And then by using biomass fuel, to prevent global warming from contributing.
3) income is ensured：Taken by greasy filth, mud transaction, substitute traditional fossil fuel and cut down expense generation income.
4) by this technology, dehydration greasy filth (moisture content 80%) can be made and dries sludge (moisture content 10%).Obtain
Organic principle ratio (energy value) in solid matter is higher.
Brief description of the drawings
Fig. 1：Sewage disposal sludge fuel application schematic diagram, wherein：1st, multilayer convolution drying machine；2nd, sludge hopper；
3rd, sludge storage tank is dried；4th, cyclone separator；5th, heat exchanger.
Fig. 2：Multilayer convolution drying equipment internal structure sketch, wherein：101st, rotary shaft；102nd, agitator；103rd, grid disk；
104th, weir is retained；105th, overfall.
Specific embodiment
Following non-limiting examples can make one of ordinary skill in the art be more fully understood the present invention, but not with
Any mode limits the present invention.Any one skilled in the art in the technical scope of present disclosure, according to
Technical scheme and its inventive concept carry out equivalent or change belongs to protection category of the present invention.
Embodiment 1
The technique that oil-sand cures thin mine tailing is dried, is many covering device structures with multilayer convolution drying machine as essential building blocks
Into its concrete structure is as follows：
Including multilayer convolution drying machine 1, it is enclosed construction, and portion center is vertically arranged with rotary shaft 101 in the inner,
Through the grid disk 103 of the uniform stacking parallel arrangement perpendicular to rotary shaft 101, described one end of grid disk 103 and multilayer are circled round drying
The inwall of machine 1 is pressed close to, and the other end is free end, the free end end in be provided with vertical direction retention weir 104, and
Space between the inwall of retention weir 104 and multilayer convolution drying machine 1 is overfall 105, is with rotary shaft 101 on grid disk 103
Central Symmetry and be uniformly distributed with the hole with agitator 102, inclination angle from the agitator 102 to the direction of rotary shaft 101
It is acute angle.Sludge feed(raw material)inlet, described sludge feed(raw material)inlet are provided with the side wall at the top of multilayer convolution drying machine 1
It is connected with sludge hopper 2 by pipeline；On multilayer circles round drying machine 1 on the side wall relative with the sludge feed(raw material)inlet,
It is additionally provided with high-temperature steam entrance；Described high-temperature steam entrance is connected by pipeline with heat exchanger 5；It is dry in multilayer convolution
The bottom of dry machine 1 is provided with and dries sludge export mouth；The described sludge export mouth that dries is connected by pipeline with sludge storage tank 3 is dried
It is logical；Steam outlet is provided with the side wall of multilayer convolution drying machine 1 bottom；Described steam outlet is by pipe
Road, successively the bottom with cyclone separator 4 and heat exchanger 5 be connected；The top of the heat exchanger 5 is provided with high-temperature steam entrance, bottom
Portion is provided with reduced temperature steam outlet.
Embodiment 2
Dry the technical process that oil-sand cures thin mine tailing：
Pending mud raw material enters multilayer convolution drying machine 1 by sludge hopper 2 and sludge feed(raw material)inlet, and passes through
The agitator 102 of rotation, after the superheated steam being passed through with high-temperature steam entrance is sufficiently mixed, in lasting whipping process
Conveying downwards, specifically, pending mud raw material is dried with the superheated steam directly contact of circulation, from upper strata agitator
102 dry while be delivered to lower floor's agitator 102, finally dry sludge export mouth from orlop and are expelled to and dry sludge storage
In groove 3, sludge after being dried is drawn by air-introduced machine and dries sludge.The transmission in the horizontal direction of described sludge raw material
Mode is to retain one end horizontal transport on weir 104 to setting on ground floor grid disk 103 with the rotation of rotary shaft 101.It is described
Sludge raw material be in the transmission means of vertical direction, first it is downward by being vertically arranged overfall 105 on ground floor grid disk 103
One grid disk 103 is conveyed；Dam sludge raw material that weir is prevented from grid disk 103 in rotary course because centrifugal force throws to multilayer
Circle round the machine wall of drying machine 1, because the centrifugal force that produces of rotation and damming weir, the stop of agitator 102, sludge raw material will not be by
Hole vertical downward movement, but go downwards to next layer of grid disk 103 along overfall 105.
On the other hand, the setting purpose of the cyclone separator 4 is entrained oil mud or oil-sand, rotation in trapping discharge steam
The greasy filth or oil-sand that the bottom of wind separator 4 traps are entered and dry sludge storage tank 3；The setting purpose of heat exchanger 5 is and high temperature
Steam heat-exchanging, makes high-temperature steam reach the multilayer convolution steam operating temperature of drying machine 1, while the Low Temperature Steam of discharge is through heat exchange
Temperature gets a promotion afterwards, makes full use of steam thermal energy.
According to sludge from wastewater treatment plant method of inspection CJ/T 221-2005, moisture content is measured.By this hair
The bright technology, the pending dehydrated oil mud of moisture content 80% can be made into moisture content 10% dries sludge.It is thus obtained
Organic principle ratio (energy value) in solid matter is higher.
Claims (7)
- It is 1. a kind of to dry the process that oil-sand cures thin mine tailing, it is characterised in that：Methods described includes multilayer convolution drying machine Construction unit：The multilayer convolution drying machine is enclosed construction, and portion center is vertically arranged with rotary shaft in the inner, also vertical solid It is connected in the grid disk of the uniform stacking parallel arrangement of rotary shaft, described grid disk one end is pressed close to the inwall of multilayer convolution drying machine, separately One end is free end, and the free end of the adjacent two layers grid disk is located at the relative both sides of rotary shaft；In the end of the free end Weir is retained in being provided with vertical direction, and the space retained between the inwall of weir and multilayer convolution drying machine is overfall, grid On disk symmetrical centered on rotary shaft and be uniformly distributed with the hole with agitator, the stirring flapwise rotary shaft direction is inclined Oblique angle is acute angle.
- 2. the process that oil-sand cures thin mine tailing is dried according to claim 1, it is characterised in that：In multilayer convolution Sludge feed(raw material)inlet is provided with side wall at the top of drying machine, described sludge feed(raw material)inlet passes through pipeline and sludge hopper phase Even.
- 3. the process that oil-sand cures thin mine tailing is dried according to claim 1, it is characterised in that：In multilayer convolution drying On machine on the side wall relative with the sludge feed(raw material)inlet, high-temperature steam entrance is additionally provided with；Described high-temperature steam entrance leads to Pipeline is crossed to be connected with heat exchanger.
- 4. the process that oil-sand cures thin mine tailing is dried according to claim 1, it is characterised in that：In multilayer convolution Dry motor spindle and be provided with and dry sludge export mouth；The described sludge export mouth that dries is connected by pipeline with sludge storage tank is dried It is logical.
- 5. the process that oil-sand cures thin mine tailing is dried according to claim 1, it is characterised in that：In multilayer convolution Dry and be provided with steam outlet on the side wall of motor spindle；Described steam outlet passes through pipeline, successively with cyclone separator And the bottom connection of heat exchanger.
- 6. the process that oil-sand cures thin mine tailing is dried according to claim 1, it is characterised in that：The heat exchanger top High-temperature steam entrance is provided with, bottom is provided with reduced temperature steam outlet.
- It is 7. as claimed in claim 1 to dry the process that oil-sand cures thin mine tailing, it is characterised in that：Under methods described includes State technical process：Pending mud raw material enters multilayer convolution drying machine by sludge hopper and sludge feed(raw material)inlet, and by rotation Agitator, after the superheated steam being passed through with high-temperature steam entrance is sufficiently mixed, conveys downwards in lasting whipping process；Pending mud raw material is dried with the superheated steam directly contact of circulation, is dried from upper strata agitator while defeated Lower floor's agitator is delivered to, is finally dried during sludge export mouth is expelled to and dries sludge storage tank from orlop, sludge after being dried, Drawn by air-introduced machine and dry sludgeDescribed sludge raw material transmission means in the horizontal direction is, with the rotation of rotary shaft on ground floor grid disk to setting Put one end horizontal transport on retention weirDescribed sludge raw material transmission means in vertical direction is, first by being vertically arranged overfall on ground floor grid disk Conveyed to next grid disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710190170.4A CN106904812B (en) | 2017-03-27 | 2017-03-27 | Process method for drying oil sand mature fine tailings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710190170.4A CN106904812B (en) | 2017-03-27 | 2017-03-27 | Process method for drying oil sand mature fine tailings |
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| CN106904812B CN106904812B (en) | 2023-04-18 |
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| JPH05261201A (en) * | 1992-03-19 | 1993-10-12 | Kakiuchi:Kk | Method for drying high moisture material and equipment therefor |
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| JP2001201260A (en) * | 2000-01-19 | 2001-07-27 | Kono Plant Kogyo Kk | Method and apparatus for drying grain |
| CN101759344A (en) * | 2010-01-22 | 2010-06-30 | 西安长庆科技工程有限责任公司 | Oil field oil sludge drying treatment combined device and oil sludge drying treatment technique |
| CN101830624A (en) * | 2010-06-09 | 2010-09-15 | 山东天力干燥设备有限公司 | System and process for drying sludge blades |
| CN103043878A (en) * | 2011-10-13 | 2013-04-17 | 上海麦风微波设备有限公司 | Microwave energy-saving drying method and apparatus for sludge and coal slime |
| CN203683344U (en) * | 2014-01-08 | 2014-07-02 | 伟明环保设备有限公司 | Circular disk type sludge dryer |
| CN203904307U (en) * | 2014-06-13 | 2014-10-29 | 江西友尼宝农业科技开发有限公司 | Evaporation machine with top-end heating device |
| CN105254147A (en) * | 2015-10-21 | 2016-01-20 | 南昌航空大学 | Triple utilization device and method for exhaust steam waste heat produced during superheat steam drying of sludge |
| CN205373388U (en) * | 2016-03-04 | 2016-07-06 | 衢州市煜鑫农产品加工技术开发有限公司 | A screw feeder for hot air drying device |
-
2017
- 2017-03-27 CN CN201710190170.4A patent/CN106904812B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05261201A (en) * | 1992-03-19 | 1993-10-12 | Kakiuchi:Kk | Method for drying high moisture material and equipment therefor |
| CN2270952Y (en) * | 1996-06-21 | 1997-12-17 | 沈善明 | Deflecting trough plate type heating mixing dryer |
| JP2001201260A (en) * | 2000-01-19 | 2001-07-27 | Kono Plant Kogyo Kk | Method and apparatus for drying grain |
| CN101759344A (en) * | 2010-01-22 | 2010-06-30 | 西安长庆科技工程有限责任公司 | Oil field oil sludge drying treatment combined device and oil sludge drying treatment technique |
| CN101830624A (en) * | 2010-06-09 | 2010-09-15 | 山东天力干燥设备有限公司 | System and process for drying sludge blades |
| CN103043878A (en) * | 2011-10-13 | 2013-04-17 | 上海麦风微波设备有限公司 | Microwave energy-saving drying method and apparatus for sludge and coal slime |
| CN203683344U (en) * | 2014-01-08 | 2014-07-02 | 伟明环保设备有限公司 | Circular disk type sludge dryer |
| CN203904307U (en) * | 2014-06-13 | 2014-10-29 | 江西友尼宝农业科技开发有限公司 | Evaporation machine with top-end heating device |
| CN105254147A (en) * | 2015-10-21 | 2016-01-20 | 南昌航空大学 | Triple utilization device and method for exhaust steam waste heat produced during superheat steam drying of sludge |
| CN205373388U (en) * | 2016-03-04 | 2016-07-06 | 衢州市煜鑫农产品加工技术开发有限公司 | A screw feeder for hot air drying device |
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| CN106904812B (en) | 2023-04-18 |
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