CN107999529A - A kind of rotary kiln thermal desorption device for being evenly heated material - Google Patents
A kind of rotary kiln thermal desorption device for being evenly heated material Download PDFInfo
- Publication number
- CN107999529A CN107999529A CN201711359818.2A CN201711359818A CN107999529A CN 107999529 A CN107999529 A CN 107999529A CN 201711359818 A CN201711359818 A CN 201711359818A CN 107999529 A CN107999529 A CN 107999529A
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- China
- Prior art keywords
- kiln body
- kiln
- thermal desorption
- rotary kiln
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/06—Reclamation of contaminated soil thermally
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The present invention relates to soil remediation industry in field of environment protection, is a kind of rotary kiln thermal desorption device for being evenly heated material, is made of fixed section kiln body, rotation section kiln body, burner apparatus, supporting rollern device, insulation of furnace wall and sealing device；The device is, according to demand of processing quantity, will to be divided into some sections along its length for the rotary kiln that thermal desorption is handled, formed by two kinds of structure alternate combinations of rotation section kiln body and fixed section kiln body；The rotation section kiln body uses the design structure of conventional rotary kiln；One or more burner apparatus are installed in each described fixed section kiln body, for material in heating kiln；Rotate the double containment form that the sealing of section kiln body and fixed section kiln body between the two is kept the temperature using sealing hoop plate and labyrinth.The temperature unevenness in kiln between material is reduced maximizing of the present invention, expeditiously completes purification and reparation to contaminated soil.
Description
Technical field
The present invention relates to soil remediation industry in field of environment protection, is that one kind is suitable for dystopy direct-type thermal desorption renovation technique
Rotary kiln thermal desorption device.
Background technology
Dystopy direct-type thermal desorption renovation technique is a kind of effective means repaired for organic polluted soil, its base
Present principles are：Material is made by heating（Contaminated soil）In pollutant in the form of the gas phase of fugitive constituent from soil surface or hole
Middle desorption comes out.The difference of thermal desorption renovation technique and incineration disposal is：（1）The ignition temperature that incineration disposal needs is extremely
Less more than 850 DEG C；（2）And thermal desorption temperature only needs the hot volatilization temperature or slightly higher for reaching pollutant itself.
The organic pollution that can detect in the soil at present, its hot volatilization temperature is substantially at 100 DEG C~600 DEG C, highest temperature
It is low relative to the required temperature of incineration disposal no more than 750 DEG C, so the soil of processing isodose, thermal desorption processes ratio
The energy substance of burning process consumption is many less.
At present, dystopy direct-type thermal desorption recovery technique is applied very extensive in soil remediation industry.As a kind of thing
Restorative procedure is managed, it has the advantages that technological process is simple, treatment effeciency is high and repairing efficiency is short, is that a kind of processing organic matter is dirty
One of recovery technique of mature and reliable of soil, and it is also lash-up recovering prediction scheme to tackle some paroxysmal organic pollution accidents
Preference.
The content of the invention
Rotary kiln device described in the present invention, is exactly the core equipment in dystopy direct-type thermal desorption renovation technique,
It can make material（Contaminated soil）Along on the length stroke of whole rotary kiln equably by heat source（Burner apparatus）Heat and protect
Temperature, i.e., can reach the optimal gas phase temperature range of thermal desorption demand rapidly in first segment fixed section kiln body, then be fired by insulation
Burner maintains this section of temperature range, the time requirement until meeting thermal desorption.
The present invention maximally solves the problems, such as in kiln material in the poor temperature uniformity at each time point, makes waving in soil
The pollutants such as hair property organic matter, semi-volatile organic matter, chlorophenol, dioxin/furans, oil, mercury divide rapidly from soil
Separate out and, expeditiously complete the purification and reparation to contaminated soil.
Conventional direct-type thermal desorption system is broadly divided into two parts：（1）It is heating unit,（2）It is tail gas treating unit.This
It is as follows to invent the concrete technical scheme proposed：A kind of rotary kiln thermal desorption device for being evenly heated material, is to belong to first
Equipment in the heating unit divided, it is protected by fixed section kiln body, rotation section kiln body, burner apparatus, supporting rollern device, kiln body
Gentle sealing device is formed, be the rotary kiln that will be handled for thermal desorption according to demand of processing quantity, if being divided into along its length
Dry section, is formed by two kinds of structure alternate combinations of rotation section kiln body and fixed section kiln body；The rotation section kiln body is turned round using conventional
The design structure of kiln；One or more burner apparatus are installed in each described fixed section kiln body, in heating kiln
Material；Rotate the double containment form that the sealing of section kiln body and fixed section kiln body between the two is kept the temperature using sealing hoop plate and labyrinth.
Further, the rotation section kiln body is oriented around mounting axis（Clockwise or counterclockwise）Rotation, inside is equipped with anti-
Stifled scraper plate, and certain inclination angle is carried during installation, material can be promoted not stop to overturn in kiln body, and moved to stroke directions.
Further, the fixed section kiln body is along the circumferential direction being provided with one or more burner apparatus, as thing
Heat source needed for material heating or insulation.And thermocouple is installed in kiln body, real-time display and material temperature in kiln can be recorded on DCS
Degree.
Further, the supporting rollern device is with supporting kiln body and the drive rotating function of kiln body.
Further, the insulation of furnace wall and sealing device are to be securely attached to rotation section kiln body and fixed section kiln body
Together, it can prevent harmful high-temperature flue gas in kiln from leaking out.
Further, the burner uses the fuel such as natural gas or diesel oil, and close to the burner master at material inlet end
If heated material to corresponding gasification temperature, the main application of remaining burner is used for insulation.
The purpose of the present invention：Conventional rotary kiln thermal desorption device is solved, material can have stroke directions to be evenly heated in kiln
The shortcomings that.Because the burner apparatus of conventional rotary kiln is mounted in feed end or discharge end.Material is whole from discharging is fed to
In flow, the temperature requirement that only can be only achieved pollutant by improving the power of burner and Thermal desorption is completed from soil, energy
Source utilization rate is low.
Rotary kiln thermal desorption device described in the present invention can make material（Contaminated soil）Along the length of whole rotary kiln
Spend on stroke equably by heat source（Burner apparatus）Heated, material is quickly reached and maintain the optimal of thermal desorption demand
On temperature spot, the temperature unevenness between material in kiln is reduced maximizing, make volatile organic matter in soil, half
The pollutants such as volatile organic matter, chlorophenol, dioxin/furans, oil are rapidly separated out from soil, expeditiously complete
The reparation of paired contaminated soil.
Brief description of the drawings
Fig. 1 direct-type rotary kiln thermal desorption device outline drawings.
Fig. 2 rotary kiln thermal desorption profiles.
Fig. 3 Temperature-time axis characteristic distribution illustrates comparison diagram.
Embodiment
A kind of rotary kiln thermal desorption device for being evenly heated material described in the invention, embodiment explanation
For：
As shown in Figure 1 and Figure 2, the present invention by fixed section kiln body 1, rotation section kiln body 2, burner apparatus 3, supporting rollern device 4,
Insulation of furnace wall 5 and sealing device 6 are formed.It will be used for the rotary kiln of thermal desorption processing according to demand of processing quantity, along its length
Some sections are divided into, i.e., is formed by 1 two kinds of structure alternate combinations of rotation section kiln body 2 and fixed section kiln body.
Section kiln body 2 is rotated to orient around mounting axis（Clockwise or counterclockwise）Rotation, inside is equipped with anti-blocking scraper plate, and installs
When carry certain inclination angle, material can be promoted not stop to overturn in kiln body, and moved to stroke directions.
Fixed section kiln body 1 is along the circumferential direction being provided with one or more burner apparatus 7, heats or keeps the temperature as material
Required heat source.And thermocouple 8 is installed in kiln body, real-time display and temperature of charge in kiln can be recorded on DCS.
Supporting rollern device 4 is with supporting kiln body with driving the rotating function of kiln body.
Insulation of furnace wall 5 and sealing device 6 will can be prevented together with rotation section kiln body is closely attached with fixed section kiln body
Harmful high-temperature flue gas in kiln leaks out.
Burner 7 is using fuel such as natural gas or diesel oil, and the burner close to material inlet end is mainly heated material
To corresponding gasification temperature, the main application of remaining burner is used for insulation.
The advantage of the invention is that：It can make material（Contaminated soil）On along the length stroke of whole rotary kiln equably by
Heat source（Burner apparatus）Heated, material is quickly reached and maintain on the optimum temperature point of thermal desorption demand, can be most
Bigization ground reduces the temperature unevenness in kiln between material, makes volatile organic matter, semi-volatile organic matter, the chlorine in soil
The pollutants such as substituting phenol, dioxin/furans, oil are rapidly separated out from soil, expeditiously complete to contaminated soil
Repair.By taking volatile organic matter as an example, " the Temperature-time axis characteristic distribution schematic diagram " of thermal desorption processing, such as Fig. 3.
The present invention implementation and from the limitation of examples detailed above.Other are any without departing from essence of the present invention and under having plenty of
Change, modification, replacement, combination, the simplification made, should be equivalent substitute mode, are included in protection scope of the present invention
Within.
Claims (7)
1. a kind of rotary kiln thermal desorption device for being evenly heated material, is filled by fixed section kiln body, rotation section kiln body, burner
Put, supporting rollern device, insulation of furnace wall and sealing device are formed；It is characterized in that：It is the rotary kiln that will be handled for thermal desorption
According to demand of processing quantity, some sections are divided into along its length, by two kinds of structure alternate groups of rotation section kiln body and fixed section kiln body
Conjunction forms；The rotation section kiln body uses the design structure of conventional rotary kiln；It is provided with each described fixed section kiln body
One or more burner apparatus, for material in heating kiln；The sealing of rotation section kiln body and fixed section kiln body between the two is adopted
The double containment form kept the temperature with sealing hoop plate and labyrinth.
A kind of 2. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 1, it is characterised in that：Pass through dirt
The heat volatilization of thing itself is contaminated, temperature of charge is lifted into the corresponding gas phase temperature section of pollutant volatilization and is promoted in soil
Polluter, parses from material.
A kind of 3. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 2, it is characterised in that：The gas
Phase temperature is at 150 DEG C~750 DEG C.
A kind of 4. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 2, it is characterised in that：The soil
Polluter in earth includes volatile organic matter, semi-volatile organic matter, chlorophenol, dioxin/furans and oil.
A kind of 5. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 1, it is characterised in that：The kiln
For body around mounting axis directional-rotation, inside is equipped with anti-blocking scraper plate, and carries certain inclination angle during installation, can promote material in kiln body
Do not stop to overturn, and moved to stroke directions.
A kind of 6. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 1, it is characterised in that：In the section
One or more burner apparatus are along the circumferential direction installed in kiln body, required heat source is heated or kept the temperature as material.
A kind of 7. rotary kiln thermal desorption device for being evenly heated material as claimed in claim 5, it is characterised in that：In kiln body
On be provided with and real-time display and the thermocouple of temperature of charge in kiln can be recorded on DCS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711359818.2A CN107999529A (en) | 2017-12-18 | 2017-12-18 | A kind of rotary kiln thermal desorption device for being evenly heated material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711359818.2A CN107999529A (en) | 2017-12-18 | 2017-12-18 | A kind of rotary kiln thermal desorption device for being evenly heated material |
Publications (1)
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| CN107999529A true CN107999529A (en) | 2018-05-08 |
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| CN201711359818.2A Pending CN107999529A (en) | 2017-12-18 | 2017-12-18 | A kind of rotary kiln thermal desorption device for being evenly heated material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817062A (en) * | 2018-06-28 | 2018-11-16 | 上海环境工程设计研究院有限公司 | Indirect thermal desorption device for organic polluted soil showering |
| CN112238134A (en) * | 2020-09-23 | 2021-01-19 | 刘俊燕 | Soil remediation thermal desorption barrel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178540A (en) * | 1994-12-20 | 1996-07-12 | Tokyo Gas Co Ltd | Continuous processing device in rotary kiln |
| CN201811564U (en) * | 2010-09-15 | 2011-04-27 | 吉林吉恩镍业股份有限公司 | Multi-section high-temperature reducing rotary kiln |
| CN201819540U (en) * | 2010-09-21 | 2011-05-04 | 吉林吉恩镍业股份有限公司 | Fixed temperature-regulating kiln of multi-section high temperature reduction rotary kiln |
| CN102183141A (en) * | 2011-04-26 | 2011-09-14 | 内蒙古超牌高岭土有限公司 | Rotary kiln and production system thereof |
| CN102954685A (en) * | 2011-08-29 | 2013-03-06 | 攀钢集团有限公司 | Sectioned type rotary pit |
| CN203323546U (en) * | 2012-11-01 | 2013-12-04 | 张广林 | Sectional type rotary kiln |
| CN204234456U (en) * | 2014-11-24 | 2015-04-01 | 北京北宇机械设备有限公司 | Multi-stage oven soil repair system |
| CN207857530U (en) * | 2017-12-18 | 2018-09-14 | 上海康恒环境股份有限公司 | A kind of rotary kiln thermal desorption device being evenly heated material |
-
2017
- 2017-12-18 CN CN201711359818.2A patent/CN107999529A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08178540A (en) * | 1994-12-20 | 1996-07-12 | Tokyo Gas Co Ltd | Continuous processing device in rotary kiln |
| CN201811564U (en) * | 2010-09-15 | 2011-04-27 | 吉林吉恩镍业股份有限公司 | Multi-section high-temperature reducing rotary kiln |
| CN201819540U (en) * | 2010-09-21 | 2011-05-04 | 吉林吉恩镍业股份有限公司 | Fixed temperature-regulating kiln of multi-section high temperature reduction rotary kiln |
| CN102183141A (en) * | 2011-04-26 | 2011-09-14 | 内蒙古超牌高岭土有限公司 | Rotary kiln and production system thereof |
| CN102954685A (en) * | 2011-08-29 | 2013-03-06 | 攀钢集团有限公司 | Sectioned type rotary pit |
| CN203323546U (en) * | 2012-11-01 | 2013-12-04 | 张广林 | Sectional type rotary kiln |
| CN204234456U (en) * | 2014-11-24 | 2015-04-01 | 北京北宇机械设备有限公司 | Multi-stage oven soil repair system |
| CN207857530U (en) * | 2017-12-18 | 2018-09-14 | 上海康恒环境股份有限公司 | A kind of rotary kiln thermal desorption device being evenly heated material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817062A (en) * | 2018-06-28 | 2018-11-16 | 上海环境工程设计研究院有限公司 | Indirect thermal desorption device for organic polluted soil showering |
| CN112238134A (en) * | 2020-09-23 | 2021-01-19 | 刘俊燕 | Soil remediation thermal desorption barrel |
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