CN209156712U - Utilize the system of the purifying organic polluted soil of heat transfer original position thermal desorption - Google Patents
Utilize the system of the purifying organic polluted soil of heat transfer original position thermal desorption Download PDFInfo
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- CN209156712U CN209156712U CN201821782323.0U CN201821782323U CN209156712U CN 209156712 U CN209156712 U CN 209156712U CN 201821782323 U CN201821782323 U CN 201821782323U CN 209156712 U CN209156712 U CN 209156712U
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Abstract
The utility model relates to a kind of system using the purifying organic polluted soil of heat transfer original position thermal desorption, heating unit and air injection unit be it is multiple, the two is alternately plugged in organic polluted soil, and collector unit is set above the two；Heating unit is made of electrically heated rod and casing, and the air inlet of air injection unit is connected by pipeline with the air outlet of positive pressure fan；Collector unit connects the air inlet of negative-pressure air fan by pipeline, and negative-pressure air fan, burning clean unit and positive pressure fan are connected with heat exchange unit respectively.The utility model can realize organic polluted soil original position high-efficient purification, reliable for operation, and investment operating cost is low, long service life, and secondary pollution is not present.
Description
Technical field
The utility model relates to organic polluted soil recovery technique field more particularly to a kind of utilization heat transfer in-situ heat are de-
The system of attached purifying organic polluted soil.
Background technique
With the continuous improvement of city industrialization level, the organic chemical industries such as bulk petroleum chemical industry, coal chemical industry enterprise is constantly emerging
It rises, in these enterprise production process, a large amount of poisonous and harmful chemicals inevitably enter soil environment, cause the dirt of soil
Dye；Pollutant in soil enters human body by approach such as food, breathings and threatens health of human body；Therefore to contaminated soil into
Row, which is repaired, becomes imperative.
The soil restoring technology mainly used at present is that dystopy burns recovery technique: digging up contaminated soil and puts
Enter and carries out high temperature incineration in incinerator.But that there are rehabilitation costs is high, energy consumption is high, freight volume is big etc. lacks for this soil restoring technology
Point is especially unsuitable for the reparation of larger area organic polluted soil.Occurs thermal desorption technology in situ in recent years, but there is also all
More disadvantages such as collect organic pollutant using extraction device, and extraction device operation a period of time just will appear gas port obstruction shadow
It rehearses with musical accompaniment gas；Although contaminated soil surface is sealed up for safekeeping with cement inhibits escaping but causing new pollution to soil for organic pollutant；Soil
Earth deep layer does underground passage method and not only increases project cost and construct extremely difficult.
Summary of the invention
The utility model provide a kind of system using the purifying organic polluted soil of heat transfer original position thermal desorption, it can be achieved that
Organic polluted soil original position high-efficient purification, reliable for operation, investment operating cost is low, long service life, and secondary dirt is not present
Dye.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
Using the system of the purifying organic polluted soil of heat transfer original position thermal desorption, including by heating unit, collector unit, negative
The circulating purification system that pressure fan, heat exchange unit, burning clean unit, positive pressure fan and air injection unit form；It is described to add
Hot cell and air injection unit be it is multiple, the two alternately is plugged in organic polluted soil, heating unit and air injection
The top of unit and organic polluted soil flush are simultaneously equipped with sieve, the top of heating unit and air injection unit on it
If collector unit, collector unit is cover structure, in the bottom end insertion organic polluted soil of side and by heating unit and sky
Gas injection unit is trapped among wherein；Heating unit is made of electrically heated rod and casing, and electrically heated rod protrudes into casing correspondingly；
The air inlet of air injection unit is connected by pipeline with the air outlet of positive pressure fan；Collector unit connects negative pressure wind by pipeline
The air inlet of the air inlet of machine, negative-pressure air fan is connected by pipeline with the first medium feeder connection of heat exchange unit, heat exchange unit
First medium channel outlet by pipeline connect burning clean unit combustion air inlet, the purified gas for the clean unit that burns
Body outlet is connected by pipeline with the second medium feeder connection of heat exchange unit, the second medium channel outlet connection of heat exchange unit
Gas emission pipe；The third medium channel entrance of heat exchange unit is connected with atmosphere, the third medium channel outlet of heat exchange unit
The air inlet of positive pressure fan is connected by pipeline.
Gap is equipped between the electrically heated rod and casing；It is enclosed construction at the top and bottom of casing；The side of casing
Wall and bottom uniformly open up multiple through-holes.
The air injection unit is cylindrical body, and top is enclosed construction, and bottom is uncovered structure, and top passes through pipeline
Connect the air outlet of positive pressure fan；The side wall of air injection unit opens up the through-hole that multiple apertures are sequentially increased from top to bottom.
Gas-water separation unit is additionally provided on pipeline between the negative-pressure air fan and heat exchange unit.
The collector unit is the air-suction cover with regular shape；The positive pressure fan, negative-pressure air fan configure variable-frequency electric
Machine.
Multistage set of heat exchange tubes is equipped with inside the heat exchange unit, form set of heat exchange tubes every heat exchanger tube periphery be equipped with it is scattered
Hot fin.
The burning clean unit is using natural gas or liquefied gas as fuel.
Depth in the bottom end insertion organic polluted soil of the collector unit side is 50~100cm.
Compared with prior art, the utility model has the beneficial effects that
1) heating unit and air injection unit can accelerate organic contamination in soil using the structure type being alternately arranged
The diffusion velocity of object is conducive to pollutant precipitation；
2) electrically heated rod makes soil be rapidly heated to organic pollutant boiling temperature by heat exchange pattern, is conducive to organic
The quick precipitation of pollutant；
3) form that heating unit uses electrically heated rod to combine with casing facilitates organic gas and passes through leading on casing
Gap between hole and casing and electrically heated rod, which is realized, collects；
4) collector unit uses the form of monoblock type air-suction cover, is not only simple in structure, is advantageously implemented to volatile matter gas
Efficient collection, and can effectively avoid it is conventional using extraction tube when obstructing problem；The sidewall bottom of collector unit is embedded to
Certain depth inside organic polluted soil, can be effectively reduced outside air intrusion volume, while avoid collecting escaping for gas；
5) the organic polluted soil surface in collector unit is equipped with sieve, increases subsequent set after effectivelying prevent dust to be sucked away
Received shipment row burden；
6) gas-water separation unit can effectively remove the moisture collected in gas, increase the calorific value for collecting gas, drop simultaneously
Low energy expenditure；
7) heat exchange unit use multistage set of heat exchange tubes, efficiently use burning waste gas heat, while reduce equipment, fuel at
This；
8) structure type of air injection unit is conducive to preheated air and is directly entered in the organic polluted soil of deep layer, in advance
Hot-air is spread from bottom to top in organic polluted soil, is accelerated the conversion desorption of organic contaminants in soil, is increased pollution
Object diffusion velocity helps quickly to collect；
9) gas is collected using method for high temperature combustion processing, while meeting combustion tail gas qualified discharge, guarantee is not generated
Secondary pollution.
Detailed description of the invention
Fig. 1 is a kind of knot of system using the purifying organic polluted soil of heat transfer original position thermal desorption described in the utility model
Structure schematic diagram.
In figure: the combustion of 1. heating unit, 2. collector unit, 3. negative-pressure air fan, 4. gas-water separation unit, 5. heat exchange unit 6.
Burning 7. 11. casing of positive 8. air injection unit of pressure fan 9. pipeline, 10. electrically heated rod of clean unit, 12. sieve 13. has
Machine contaminated soil
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, the system described in the utility model using the purifying organic polluted soil of heat transfer original position thermal desorption, packet
It includes by heating unit 1, collector unit 2, negative-pressure air fan 3, heat exchange unit 5, burning clean unit 6, positive pressure fan 7 and air injection
The circulating purification system that unit 8 forms；The heating unit 1 and air injection unit 8 be it is multiple, the two alternately has been plugged in
In machine contaminated soil 13, the top of heating unit 1 and air injection unit 8 and 13 flush of organic polluted soil and on it
Equipped with sieve 12, the top of heating unit 1 and air injection unit 8 sets collector unit 2, and collector unit 2 is cover structure, side
It is trapped among wherein in the bottom end insertion organic polluted soil 13 on side and by heating unit 1 and air injection unit 8；Heating unit 1 by
Electrically heated rod 10 and casing 11 form, and electrically heated rod 10 is protruded into correspondingly in casing 11；The air inlet of air injection unit 8
It is connected by pipeline 9 with the air outlet of positive pressure fan 7；Collector unit 2 connects the air inlet of negative-pressure air fan 3, negative pressure by pipeline 9
The air inlet of blower 3 is connected by pipeline 9 with the first medium feeder connection of heat exchange unit 5, and the first medium of heat exchange unit 5 is logical
Road outlet connects the combustion air inlet of burning clean unit 6 by pipeline 9, and the purified gas outlet of burning clean unit 6 is logical
Piping 9 is connected with the second medium feeder connection of heat exchange unit 5, and the second medium channel outlet of heat exchange unit 5 connects gas
Discharge tube；The third medium channel entrance of heat exchange unit 5 is connected with atmosphere, and the third medium channel outlet of heat exchange unit 5 is logical
Piping 9 connects the air inlet of positive pressure fan 7.
Gap is equipped between the electrically heated rod 10 and casing 11；The top and bottom of casing 11 are enclosed construction；Set
The side wall of pipe 11 and bottom uniformly open up multiple through-holes.
The air injection unit 8 is cylindrical body, and top is enclosed construction, and bottom is uncovered structure, and top passes through pipe
Road 9 connects the air outlet of positive pressure fan 7；It is logical to open up that multiple apertures are sequentially increased from top to bottom for the side wall of air injection unit 8
Hole.
Gas-water separation unit 4 is additionally provided on pipeline 9 between the negative-pressure air fan 3 and heat exchange unit 5.
The collector unit 2 is the air-suction cover with regular shape；The positive pressure fan 7, negative-pressure air fan 3 configure frequency conversion
Motor.
Multistage set of heat exchange tubes is equipped with inside the heat exchange unit 5, every heat exchanger tube periphery for forming set of heat exchange tubes is equipped with
Radiated rib.
The burning clean unit 6 is using natural gas or liquefied gas as fuel.
Depth in the bottom end insertion organic polluted soil 13 of 2 side of collector unit is 50~100cm.
The course of work of system described in the utility model using the purifying organic polluted soil of heat transfer original position thermal desorption
Include the following steps:
1) size according to area, is multiple processing units by organic polluted soil region division, and each processing unit is all provided with
Set the heating unit 1 and air injection unit 8 of 2 corresponding number of collector unit；
2) after system starting, the heat that electrically heated rod 10 generates in heating unit 1 is transmitted to organic contamination by casing 11
In soil 13, while being conducted from the hot-air after the heating of heat exchange unit 5 by air injection unit 8 into organic polluted soil 13
Heat, under the collective effect of the two, the volatile matter in organic polluted soil 13 is constantly precipitated, and is collected by collector unit 2；
3) under the swabbing action of negative-pressure air fan 3, the gas that collector unit 2 is collected enters heat exchange unit 5, enters after heating
The clean unit 6 that burns carries out high-temp combustion, the gas and room that the tail gas after burning is collected in heat exchange unit 5 with collector unit 2
Outer atmosphere exchanges heat, and discharges after detection is up to standard；
4) after outside atmosphere is heated up by heat exchange unit 5, air injection unit 8 is entered under the action of positive pressure fan 7；It follows
In ring purification system, positive pressure fan 7 and negative-pressure air fan 3 are adjusted jointly, make collector unit 2 be in relative pressure -50~-
The micro-vacuum state of 100Pa, and suction force is generated to the organic polluted soil of lower section 13；
5) circulating purification system continuous work realizes the high-efficient purification to organic polluted soil 13.
When water content in organic polluted soil 13 >=10%, gas-water separation unit 4 is set in 5 upstream of heat exchange unit, is used
Moisture in the gas collected by removal collector unit 2.
When use system described in the utility model carries out organic contamination compared with the lesser region of light or contaminated soil area
When reparation, heat exchange unit 5, positive pressure fan 7, air injection unit 8 can be cancelled, collect gas through burning 6 high temperature of clean unit combustion
Burn up to standard in line, heat does not recycle.
A kind of system using the purifying organic polluted soil of heat transfer original position thermal desorption described in the utility model not only can be real
Existing contaminated soil original position high-efficient purification, and invest that operating cost is low, and equipment is reliable for operation, tail gas qualified discharge, service life
It is long, secondary pollution is not present.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (8)
1. utilizing the system of the purifying organic polluted soil of heat transfer original position thermal desorption, which is characterized in that including by heating unit, receipts
Collect the circulating purification system of unit, negative-pressure air fan, heat exchange unit, burning clean unit, positive pressure fan and air injection unit composition
System；The heating unit and air injection unit be it is multiple, the two alternately is plugged in organic polluted soil, heating unit and
The top of air injection unit and organic polluted soil flush are simultaneously equipped with sieve on it, and heating unit and air injection are single
The top of member sets collector unit, and collector unit is cover structure, and the bottom end of side is inserted into organic polluted soil and will heating
Unit and air injection unit are trapped among wherein；Heating unit is made of electrically heated rod and casing, and electrically heated rod is stretched correspondingly
Enter in casing；The air inlet of air injection unit is connected by pipeline with the air outlet of positive pressure fan；Collector unit passes through pipeline
The air inlet of negative-pressure air fan is connected, the air inlet of negative-pressure air fan passes through the first medium feeder connection phase of pipeline and heat exchange unit
Even, the first medium channel outlet of heat exchange unit connects the combustion air inlet of burning clean unit, burning purification by pipeline
The purified gas outlet of unit is connected by pipeline with the second medium feeder connection of heat exchange unit, the second medium of heat exchange unit
Channel outlet connects gas emission pipe；The third medium channel entrance of heat exchange unit is connected with atmosphere, the third of heat exchange unit
Medium channel exports the air inlet that positive pressure fan is connected by pipeline.
2. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In equipped with gap between the electrically heated rod and casing；It is enclosed construction at the top and bottom of casing；The side wall of casing and bottom
Portion uniformly opens up multiple through-holes.
3. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In the air injection unit is cylindrical body, and top is enclosed construction, and bottom is uncovered structure, and top is connected by pipeline
The air outlet of positive pressure fan；The side wall of air injection unit opens up the through-hole that multiple apertures are sequentially increased from top to bottom.
4. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In being additionally provided with gas-water separation unit on the pipeline between the negative-pressure air fan and heat exchange unit.
5. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In the collector unit is the air-suction cover with regular shape；The positive pressure fan, negative-pressure air fan configure variable-frequency motor.
6. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In equipped with multistage set of heat exchange tubes inside the heat exchange unit, every heat exchanger tube periphery for forming set of heat exchange tubes is equipped with cooling fin
Piece.
7. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In the burning clean unit is using natural gas or liquefied gas as fuel.
8. the system according to claim 1 using the purifying organic polluted soil of heat transfer original position thermal desorption, feature exist
In the depth in the bottom end insertion organic polluted soil of the collector unit side is 50~100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782323.0U CN209156712U (en) | 2018-10-31 | 2018-10-31 | Utilize the system of the purifying organic polluted soil of heat transfer original position thermal desorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821782323.0U CN209156712U (en) | 2018-10-31 | 2018-10-31 | Utilize the system of the purifying organic polluted soil of heat transfer original position thermal desorption |
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| Publication Number | Publication Date |
|---|---|
| CN209156712U true CN209156712U (en) | 2019-07-26 |
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| CN201821782323.0U Active CN209156712U (en) | 2018-10-31 | 2018-10-31 | Utilize the system of the purifying organic polluted soil of heat transfer original position thermal desorption |
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| CN (1) | CN209156712U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248911A (en) * | 2018-10-31 | 2019-01-22 | 中冶焦耐(大连)工程技术有限公司 | Utilize the system and method for the purifying organic polluted soil of heat transfer original position thermal desorption |
| AT526266A1 (en) * | 2022-07-07 | 2024-01-15 | Gm Remediation Systems Gmbh | Heating device for insertion into a well shaft for heating a soil layer contaminated with pollutants in order to clean this soil layer |
-
2018
- 2018-10-31 CN CN201821782323.0U patent/CN209156712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109248911A (en) * | 2018-10-31 | 2019-01-22 | 中冶焦耐(大连)工程技术有限公司 | Utilize the system and method for the purifying organic polluted soil of heat transfer original position thermal desorption |
| AT526266A1 (en) * | 2022-07-07 | 2024-01-15 | Gm Remediation Systems Gmbh | Heating device for insertion into a well shaft for heating a soil layer contaminated with pollutants in order to clean this soil layer |
| AT526266B1 (en) * | 2022-07-07 | 2024-03-15 | Gm Remediation Systems Gmbh | Heating device for insertion into a well shaft for heating a soil layer contaminated with pollutants in order to clean this soil layer |
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