CN203484406U - Multi-heat source shaft interval-heating thermal desorption device for repairing soil polluted by organic matter - Google Patents
Multi-heat source shaft interval-heating thermal desorption device for repairing soil polluted by organic matter Download PDFInfo
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- CN203484406U CN203484406U CN201320599444.2U CN201320599444U CN203484406U CN 203484406 U CN203484406 U CN 203484406U CN 201320599444 U CN201320599444 U CN 201320599444U CN 203484406 U CN203484406 U CN 203484406U
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- 239000002689 soil Substances 0.000 title claims abstract description 64
- 238000003795 desorption Methods 0.000 title claims abstract description 39
- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 239000005416 organic matter Substances 0.000 title abstract 4
- 239000012159 carrier gas Substances 0.000 claims abstract description 18
- 239000000969 carrier Substances 0.000 claims description 15
- 239000011368 organic material Substances 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 229910052571 earthenware Inorganic materials 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 6
- 239000010908 plant waste Substances 0.000 claims description 6
- 239000002912 waste gas Substances 0.000 claims description 6
- 239000000295 fuel oil Substances 0.000 claims description 3
- 230000001737 promoting Effects 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 7
- 230000004301 light adaptation Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000011261 inert gas Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005067 remediation Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000505 pernicious Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 244000052616 bacterial pathogens Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005500 petroleum industry Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the field of environment protection and aims to provide a multi-heat source shaft interval-heating thermal desorption device for repairing soil polluted by organic matter. An interval-heating thermal desorption device of the device is a jacket heating furnace; an outer drum is provided with a soil inlet, a soil outlet device, a first multi-heat source inlet and a first multi-heat source outlet; an inner drum is provided with a carrier gas inlet and a carrier gas outlet; a hollow shaft rotary shaft with a jacket structure is formed by an outer shaft sleeve and a hollow inner shaft sleeve. The multi-heat source shaft interval-heating thermal desorption device is particularly suitable for repairing the soil polluted by organic matter, particularly the soil fields polluted by high-concentration and multi-component organic pollutants and is good in adaptation to multiple heat sources, so the comprehensive utilization efficiency of the heat sources is improved; the device is larger in soil treating capacity in unit time and is particularly suitable for sandy polluted soil. For the soil polluted by the organic matter, more than 99.9% of organic pollutant removal efficiency is realized.
Description
Technical field
The utility model relates to a set of organic pollution contaminated soil prosthetic device, by indirect-heating thermal desorption system, by organic contaminants in soil desorption out, belongs to field of Environment Protection.
Background technology
China has a large amount of soil to suffer organic pollution pollution, and pollutant kind comprises the pesticide of agricultural production use, the Polychlorinated biphenyls of power industry use and petroleum industry accident draining etc.Along with the progressively understanding of the public to organic contamination substance environment and health hazard, exigence economy and effective ways are processed these toxicants.
The recovery technique of main organic pollution contaminated soil has biological restoration, chemistry reparation, physics reparation etc.Biological restoration mostly is original position reparation, its investment is little, operating cost is low, operating condition is gentle, little to environmental disturbances, but the biological restoration cycle is long, and is limited to plant or microbe species, only can process the organic pollution of some particular types, and can only be applied under low concentration condition; Physics reparation or chemistry reparation mostly are showering, and initial outlay is large, operating cost is higher, but repairing efficiency is short, and are applicable to various types of organic pollutions and high density pollution place.Comparatively speaking, physics reparation or chemistry reparation have applicability widely, are specially adapted to high concentration, multicomponent organic contamination contaminated site.
In numerous physics reparations or chemical recovery technique, thermal desorption is to generally acknowledge the mature and reliable technology of processing organic material contaminated soil, is to be widely used in one of Organic Pollution site remediation technology most.Thermal desorption technology has good adaptability to different organic pollutant categories and concentration, and the speed of simultaneously repairing is fast, and the cycle is short.According to mode of heating, thermal desorption technology can be divided into directly-heated type and indirect-heating two classes.Directly-heated type technology thermal source directly contacts with contaminated soil, and heat transfer efficiency is high, and disposal ability is large, but produce, needs in a large number the further pernicious gas of processing; Indirect-heating technology thermal source discord contaminated material directly contacts, and heat transfer efficiency is lower, but needs the pernicious gas amount of processing few, is specially adapted to high toxicity organic material contaminated soil and processes.
But still there is following defect in current indirect thermal desorption technology: thermal desorption device complex structure, construction cost is high, operation operation inconvenience; Heat transfer efficiency is low, and efficiency of energy utilization is low; Not good to various heating sources adaptability, can not make full use of the low taste energy.Soil suitability to differing texture is poor, and soil bonding phenomenon easily occurs in thermal desorption process.
Utility model content
The technical problems to be solved in the utility model is, overcomes deficiency of the prior art, provides a kind of many thermals source for organic material contaminated soil reparation to have between centers hot type thermal desorption device.
For technical solution problem, solution of the present utility model is:
Provide a kind of many thermals source for organic material contaminated soil reparation to have between centers hot type thermal desorption device, comprise thermal desorption device; This thermal desorption device is indirect-heating thermal desorption device, is jacket type heating furnace;
Indirect-heating thermal desorption device comprises inner core and the urceolus that horizontal direction is arranged, arranges that fin is used for promoting conducting heat on the outer wall of inner core; On the top of outer cylinder front end, be provided with the soil charging aperture that accesses in inner core, in the bottom of interior tube rear end, be provided with out earthenware; The top of tube rear end is provided with for passing into the entrance of thermal source more than first of heat carrier, being provided with the outlet of thermal source more than first in the bottom of outer cylinder front end outside; In the bottom of inner core front end, be provided with carrier gas inlet for passing into carrier gas, on the top of interior tube rear end, be provided with carrier gas outlet; Heat carrier is the circulation path in chuck and the soil movement opposite direction in inner core outer tube, and the circulation path of carrier gas in inner core is all identical with the soil movement direction in inner core;
On the center line of inner core, be provided with hollow turning cylinder, by outer shaft and hollow internal axle sleeve, form and in jacket type structure, have shaft type gyroaxis in vain; In one end of hollow turning cylinder, be provided with thermal source more than second outlet and for passing into the entrance of thermal source more than second of heat carrier; The outlet of thermal source more than second and the entrance of thermal source more than second join with outer shaft or internal axle sleeve respectively, and the selection of its mounting means makes the flow direction of heat carrier in outer shaft and the soil movement opposite direction in inner core.
In the utility model, described in go out earthenware lower end conveyer is set, humidifier is established in the top of conveyer.
In the utility model, described many thermals source entrance is connected to the outlet of fuel oil high-temperature flue gas, waste heat boiler waste gas outlet or boiler of power plant waste gas outlet.
Compared with prior art, the beneficial effects of the utility model are:
Many thermals source for organic material contaminated soil reparation of the present utility model have between centers hot type thermal desorption device, by indirect, soil is carried out to thermal desorption, can effectively process organic pollution contaminated soil, be specially adapted to high concentration, plurality of organic pollutants contaminated soil site remediation; Good to various heating sources adaptability, and can select suitable thermal source according to the physicochemical property of target organic pollution, improved the comprehensive utilization ratio of thermal source; Adopt indirect-heating thermal desorption device, reduced the exhaust gas volumn that needs processing; Employing has the inner tank theca structural design of fin, and many thermals source and the incorgruous motion of soil, promoted the heat exchange of many thermals source and soil simultaneously, increased heat transfer efficiency; Employing has shaft type rotating shaft, and unit interval soil treatment ability is large, and is specially adapted to chiltern contaminated soil.For organic pollution contaminated soil, this device can be realized more than 99.9% organic pollutant removal efficiency.Many thermals source of organic material contaminated soil reparation of the present utility model have between centers hot type thermal desorption device, it needs the technology such as smoke treatment amount is few, organic pollutant removal thorough, operating cost is burned low by 30～60%, can cost-effective processing organic pollution contaminated soil.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present utility model.
Reference numeral in figure: 1 soil charging aperture, 2 urceolus, 3 inner cores, 4 motors, 5 hollow turning cylinders, thermal source entrance more than 6 first, the outlet of thermal source more than 7 first, 8 carrier gas inlets, 9 carrier gas outlets, 10 go out earthenware, 11 conveyers, 12 humidifiers, 13 fins, thermal source entrance more than 14 second, the outlet of thermal source more than 15 second.
The specific embodiment
With reference to above-mentioned accompanying drawing, technology contents of the present utility model is described in detail.
Many thermals source for organic material contaminated soil reparation have between centers hot type thermal desorption device, comprise thermal desorption device; This thermal desorption device is indirect-heating thermal desorption device, is jacket type heating furnace;
Indirect-heating thermal desorption device comprises inner core 3 and the urceolus 2 that horizontal direction is arranged, arranges that fin 13 conducts heat for promoting on the outer wall of inner core 3; On the top of urceolus 2 front ends, be provided with the soil charging aperture 1 that accesses in inner core 3, in the bottom of urceolus 2 rear ends, be provided with out earthenware 10; The lower end that goes out earthenware 10 arranges conveyer 11, and humidifier 12 is established in the top of conveyer 11.
On the top of urceolus 2 rear ends, be provided with the entrance of thermal source more than first 6 for passing into heat carrier, in the bottom of urceolus 2 front ends, be provided with the outlet of thermal source more than first 7; In the bottom of inner core 3 front ends, be provided with carrier gas inlet 8 for passing into carrier gas, on the top of inner core 3 rear ends, be provided with carrier gas outlet 9; The circulation path of heat carrier in inner core 3 external jackets and the soil movement opposite direction in inner core 3, the circulation path of carrier gas in inner core 3 is identical with the soil movement direction in inner core 3.
On the center line of inner core 3, be provided with hollow turning cylinder 5, by outer shaft and hollow internal axle sleeve, form and in jacket type structure, have shaft type gyroaxis in vain; In one end of hollow turning cylinder 5, be provided with thermal source more than second outlet 15 and for passing into the entrance of thermal source more than second 14 of heat carrier; The outlet 15 of thermal source more than second and the entrance of thermal source more than second 14 join with outer shaft or internal axle sleeve respectively, and the selection of its mounting means makes the flow direction of heat carrier in outer shaft and the soil movement opposite direction in inner core.
The entrance of thermal source more than first 6 and the entrance of thermal source more than second 14 are connected to respectively the outlet of fuel oil high-temperature flue gas, waste heat boiler waste gas outlet or boiler of power plant waste gas outlet.
In the utility model, utilize aforementioned means to realize the method that organic material contaminated soil is repaired, comprise the following steps:
Organic material contaminated soil enters inner core 3 from soil charging aperture 1 with fixed rate;
From many thermals source entrance 6, introduce high-temperature flue gas, waste heat boiler waste gas or the boiler of power plant waste gas of 300～1300 ℃ to the chuck between inner core 3 and urceolus 2, the circulation path of heat carrier in chuck and the soil movement opposite direction in inner core 3; From carrier gas inlet 8, introduce inert gas and enter inner core 3, the circulation path of carrier gas in inner core 3 is identical with the soil movement direction in inner core 3; From the entrance of thermal source more than second 14, introduce high-temperature flue gas, waste heat boiler waste gas or the boiler of power plant waste gas of 300～1300 ℃ to hollow turning cylinder 5, the flow direction of heat carrier in outer shaft and the soil movement opposite direction in inner core;
Soil is heated to 220～600 ℃ in inner core 3, and contained organic pollutants out and by inert gas is carried by desorption; After thermal desorption is processed, more than 99.9% organic pollution by desorption out, discharge by going out earthenware 10, and by conveyer 11, discharged after humidifier 12 work of water sprinkling for better material moisture by clean soil;
Heat carrier leaves many thermals source to be had after between centers hot type thermal desorption device, enters residual heat using device recovery waste heat or directly discharge; The inert gas that is carrying organic pollution enters vent gas treatment facility and processes;
Described thermal source more than first, thermal source more than second are respectively any one in high-temperature flue gas, waste heat boiler waste gas or the boiler of power plant waste gas of 300～1300 ℃; The summation of thermal source more than first and the consumption of thermal source more than second and the relation between soil treatment amount represent with following formula:
Wherein, M
many thermals sourcebe the consumption per hour of thermal source more than first and thermal source more than second, M
soilfor the shaftless indirect-heating thermal desorption of many thermals source per hour device is processed soil amount, C
soilfor specific heat capacity is held, Δ T
soilfor the temperature value that soil raises in indirect-heating thermal desorption device, Q
many thermals sourcefor the calorific value of every kilogram of many thermals source, η
heatfor the complex heat transfer efficiency of many thermals source to soil.
After above process, organic contaminants in soil is all effectively controlled, and reaches good soil remediation effect.
Finally, note also that, what more than enumerate is only a specific embodiment of the present utility model.Obviously, this is bright is not limited to above embodiment, can also have a lot of distortion.Those of ordinary skill in the art can, from all distortion that the disclosed content of the utility model directly derives or association goes out, all should think protection domain of the present utility model.
Claims (3)
1. the many thermals source for organic material contaminated soil reparation have between centers hot type thermal desorption device, comprise thermal desorption device, it is characterized in that, this thermal desorption device is indirect-heating thermal desorption device, are jacket type heating furnace;
This indirect-heating thermal desorption device comprises inner core and the urceolus that horizontal direction is arranged, arranges that fin is used for promoting conducting heat on the outer wall of inner core; On the top of outer cylinder front end, be provided with the soil charging aperture that accesses in inner core, in the bottom of interior tube rear end, be provided with out earthenware; The top of tube rear end is provided with for passing into the entrance of thermal source more than first of heat carrier, being provided with the outlet of thermal source more than first in the bottom of outer cylinder front end outside; In the bottom of inner core front end, be provided with carrier gas inlet for passing into carrier gas, on the top of interior tube rear end, be provided with carrier gas outlet; Heat carrier is the circulation path in chuck and the soil movement opposite direction in inner core outer tube, and the circulation path of carrier gas in inner core is all identical with the soil movement direction in inner core;
On the center line of inner core, be provided with hollow turning cylinder, by outer shaft and hollow internal axle sleeve, form and in jacket type structure, have shaft type gyroaxis in vain; In one end of hollow turning cylinder, be provided with thermal source more than second outlet and for passing into the entrance of thermal source more than second of heat carrier; The outlet of thermal source more than second and the entrance of thermal source more than second join with outer shaft or internal axle sleeve respectively, and the selection of its mounting means makes the flow direction of heat carrier in outer shaft and the soil movement opposite direction in inner core.
2. device according to claim 1, is characterized in that, described in go out earthenware lower end conveyer is set, humidifier is established in the top of conveyer.
3. device according to claim 1, is characterized in that, the described entrance of thermal source more than first and the entrance of thermal source more than second are connected to respectively the outlet of fuel oil high-temperature flue gas, waste heat boiler waste gas outlet or boiler of power plant waste gas outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599444.2U CN203484406U (en) | 2013-09-25 | 2013-09-25 | Multi-heat source shaft interval-heating thermal desorption device for repairing soil polluted by organic matter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320599444.2U CN203484406U (en) | 2013-09-25 | 2013-09-25 | Multi-heat source shaft interval-heating thermal desorption device for repairing soil polluted by organic matter |
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| CN203484406U true CN203484406U (en) | 2014-03-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506378A (en) * | 2013-09-25 | 2014-01-15 | 浙江大学 | Multi-heat source and shaft intervallic heating type thermal desorption device for organic pollutant contaminated soil repair |
| CN104353663A (en) * | 2014-09-30 | 2015-02-18 | 杭州大地环保工程有限公司 | Soil thermal desorption treatment system with discharge dust removal function |
| WO2016173448A1 (en) * | 2015-04-27 | 2016-11-03 | 沈逍江 | Two-section auger indirect thermal desorption device |
-
2013
- 2013-09-25 CN CN201320599444.2U patent/CN203484406U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103506378A (en) * | 2013-09-25 | 2014-01-15 | 浙江大学 | Multi-heat source and shaft intervallic heating type thermal desorption device for organic pollutant contaminated soil repair |
| CN103506378B (en) * | 2013-09-25 | 2016-01-13 | 浙江大学 | Multi-heat source for organic material contaminated soil reparation has between centers hot type thermal desorption device |
| CN104353663A (en) * | 2014-09-30 | 2015-02-18 | 杭州大地环保工程有限公司 | Soil thermal desorption treatment system with discharge dust removal function |
| WO2016173448A1 (en) * | 2015-04-27 | 2016-11-03 | 沈逍江 | Two-section auger indirect thermal desorption device |
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