CN206276717U - A kind of system of utilization bagasse repairing organic heavy-metal composite pollution soil - Google Patents
A kind of system of utilization bagasse repairing organic heavy-metal composite pollution soil Download PDFInfo
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- CN206276717U CN206276717U CN201621245070.4U CN201621245070U CN206276717U CN 206276717 U CN206276717 U CN 206276717U CN 201621245070 U CN201621245070 U CN 201621245070U CN 206276717 U CN206276717 U CN 206276717U
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Abstract
The utility model discloses the system using bagasse repairing organic heavy-metal composite pollution soil.The system includes that, without heat carrier heat accumulating type rotating bed, soil cooling device, described to include thermal desorption annular furnace, regenerative gas radiant tube without heat carrier heat accumulating type rotating bed, the regenerative gas radiant tube is located on the furnace wall of the thermal desorption annular furnace；The thermal desorption annular furnace includes dry section and pyrolysis zone；It is described that without being provided with heat carrier heat accumulating type rotating bed, mixture inlet, soil are exported, high-temperature oil gas are exported, exhanst gas outlet；Wherein, the high-temperature oil gas outlet is located at pyrolysis zone top；The soil cooling device includes soil outlet after soil entrance, condensing water inlet, cooling, and the soil entrance is connected with the soil outlet without heat carrier heat accumulating type rotating bed.The utility model can both realize the recycling of heat, and the purpose of energy-saving and emission-reduction is can reach again, it is adaptable to the repair process of various soil types.
Description
Technical field
The utility model is related to technical field of soil remediation, more particularly to a kind of using bagasse repairing organic-huge sum of money
The system for belonging to combined contamination soil.
Background technology
In recent years, with the fast development and the adjustment of industrial pattern of Urbanization in China, most big and medium-sized cities are old
The enterprises removes such as large quantities of chemical industry, smelting, the plating in city or closing, because these business equipments are outmoded, Industrial " three Waste " treatment
Technology imperfection, causes to have left large stretch of heavily contaminated place.There is the heavy metal of high concentration mostly and have in these heavily contaminated places
The combined pollution of machine thing.
Soil Fl, refers to during two or more pollutant coexists in soil, while the concentration of pollutant
More than national standard of soil environment quality or reached influence soil environment quality level.The form of soil Fl is various more
Sample, including the pollution of organic combined pollution, inorganic compounding and the pollution of organic and inorganic compounding etc..
In soil, water environment, single pollution is little, and overwhelming majority pollution is caused by multiple pollutant matter coexists
Combined pollution.But the environmental effect of Single Pollution thing is pertained only to mostly about research both at home and abroad, to multiple pollutant matter institute shape
Into environment combined pollution effect and its mechanism understanding it is also far from enough.There is pole in nature in organic pollution and heavy metal
Big difference, causes the research for carrying out combined pollution effect and mechanism between organic pollution and heavy metal also to there is certain difficulty
Degree.
For combined contamination soil, spininess heavy metal and organic matter carry out soil remediation treatment respectively.At present, can use
The chemical restoration such as chemical leaching method and hot-fixing realizes the removing of combined pollutant in contaminated soil simultaneously.Wherein, adopt
When using chemical leaching method, because heavy metal differs greatly with organic matter, single eluant, eluent elutes heavy metal and organic matter at the same time
When, there is certain limitation, also there is certain requirement to soil property, and eluent needs further treatment.When using thermal desorption skill
During art, the volatile mercury of volatility and half volatile organic contaminant and part, arsenic can be effectively removed, but most of weights
Metal cannot be removed.And biological prosthetic processing cost is low, it is adaptable to the organic matter of large area-heavy-metal contaminated soil reparation, but
It is long processing period, has certain requirement to the condition of soil, is mostly used for the soil of low concentration pollution.
To sum up, the ripe application technology that can be used for organic matter-heavy-metal composite pollution soil remediation is lacked at present, it is external
The combined pollution of research is repaired and generally requires to be combined two or more technology simultaneously, exist processing cost it is high,
The problem of complexity of constructing, it is difficult to carry out large-scale promotion.
Prior art one discloses a kind of method of eluting and renovating soil with heavy metal-organic matter combined pollution, its leacheate
Can remediating heavy metal-organic compound contaminated simultaneously soil, but leacheate is single, can only complexing moiety heavy metal, to having
The washout rate of organic pollutants is than relatively low, and leacheate consumption is big, and the waste liquid after drip washing still needs to further treatment.
Prior art two discloses a kind of dystopy thermal desorption processing method of contaminated soil, and the method is for volatility and half
The clearance of volatile organic matter can be stablized more than 95%, but heavy metal contaminated soil (except mercury) cannot be repaired.
Utility model content
In view of the problem that prior art is present, the utility model aims to provide a kind of using bagasse repairing organic-weight
The system of metal combined contamination soil.The technology that the utility model solves organic pollution and heavy metal pollution reparation simultaneously is asked
Topic, technological process is simple, is swift in response.
The utility model provides a kind of system of use bagasse repairing organic-heavy-metal composite pollution soil, described
System is included without heat carrier heat accumulating type rotating bed, soil cooling device；
It is described to include thermal desorption annular furnace, regenerative gas radiant tube, the heat accumulating type without heat carrier heat accumulating type rotating bed
Gas fired radiant tubes is located on the furnace wall of the thermal desorption annular furnace；The thermal desorption annular furnace includes dry section and pyrolysis zone；
It is described that without being provided with heat carrier heat accumulating type rotating bed, mixture inlet, soil are exported, high-temperature oil gas are exported, flue gas
Outlet；Wherein, the high-temperature oil gas outlet is located at pyrolysis zone top；
The soil cooling device include soil entrance, condensing water inlet, cooling after soil outlet, the soil entrance with
The soil outlet connection without heat carrier heat accumulating type rotating bed.
Further, the regenerative gas radiant tube has a high-temperature oil gas entrance, the high-temperature oil gas entrance with it is described
The high-temperature oil gas outlet connection that pyrolysis zone top is set.
Further, the soil cooling device is indirect water-cooling but device.
In above-mentioned system, contaminated soil pretreatment unit is further included, the contaminated soil pretreatment unit includes broken
Crushing device, rotary screen；
The contaminated soil pretreatment unit has contaminated soil feed(raw material)inlet, bagasse entrance, mixture outlet, described
Mixture outlet is connected with the mixture inlet without heat carrier heat accumulating type rotating bed.
In above-mentioned system, smoke eliminator is further included, mesoporous silicon substrate boiling is provided with the smoke eliminator
Stone adsorption reaction area；
The smoke eliminator includes smoke inlet, condensation-water drain, purifying smoke outlet；
The smoke inlet is connected with the exhanst gas outlet without heat carrier heat accumulating type rotating bed.
The utility model can be realized being processed while crops bagasse and organic matter-heavy-metal composite pollution soil, profit
The high-temperature oil gas for producing are pyrolyzed as the fuel of regenerative gas radiant tube with bagasse, realize the recycling of resource.
During bagasse and organic matter-heavy-metal composite pollution soil are pyrolyzed in thermal desorption stove, relative material
Bed is static.Flue gas in regenerative gas radiant tube is completely isolated with atmosphere in thermal desorption stove, it is to avoid product it is secondary
Pollution.
The utility model had both realized the recycling of heat, and the purpose of energy-saving and emission-reduction is can reach again, it is adaptable to various soil
The repair process of earth type.
Brief description of the drawings
Fig. 1 is the schematic flow sheet with bagasse repairing organic-heavy-metal composite pollution soil in the utility model.
Fig. 2 is the system schematic with bagasse repairing organic-heavy-metal composite pollution soil in the utility model.
Reference in accompanying drawing is as follows：
1st, contaminated soil pretreatment unit；2nd, without heat carrier heat accumulating type rotating bed；3rd, soil cooling device；4th, gas cleaning
Device.
Specific embodiment
Below in conjunction with drawings and Examples, specific embodiment of the present utility model is described in more details, with
Just scheme of the present utility model and the advantage of its various aspects be better understood when.However, specific implementations described below
Mode and embodiment are only descriptive purposes, rather than to limitation of the present utility model.
The utility model provides a kind of system of use bagasse repairing organic-heavy-metal composite pollution soil.Such as Fig. 2
Shown, the system includes contaminated soil pretreatment unit 1, net without heat carrier heat accumulating type rotating bed 2, soil cooling device 3, flue gas
Makeup puts 4.The annexation of each device is as follows in the system：
Contaminated soil pretreatment unit 1 includes breaker, rotary screen.Contaminated soil pretreatment unit 1 has Polluted Soil
Earth feed(raw material)inlet, bagasse entrance, mixture outlet.
Without heat carrier heat accumulating type rotating bed 2 there are mixture inlet, soil outlet, high-temperature oil gas outlet, high-temperature oil gas to enter
Mouth, exhanst gas outlet.Wherein, mixture inlet is connected with the mixture outlet of contaminated soil pretreatment unit 1, high-temperature oil gas outlet
It is connected with high-temperature oil gas entrance.The drawing mechanism that soil exit uses is double helix discharging machine.
Include thermal desorption annular furnace, regenerative gas radiant tube, distribution device, discharging without heat carrier heat accumulating type rotating bed 2
Device.Wherein, thermal desorption annular furnace is rotatable annular furnace, also, regenerative gas radiant tube is arranged on thermal desorption stove
On annular furnace wall, the thermal desorption reaction as soil by way of burn combustible gas is with heat radiation provides heat, in radiant tube
Atmosphere completely cuts off with without the atmosphere in heat carrier heat accumulating type rotating bed 2.
Thermal desorption annular furnace includes two regions：Dry section and pyrolysis zone.The temperature of dry section is 80~150 DEG C, is used for
Moisture in contaminated soil is dried.The temperature of pyrolysis zone is 300~800 DEG C, and it is anti-that thermal desorption occurs for contaminated soil
Should, it is main reaction region.Wherein, high-temperature oil gas outlet is arranged on the body of heater top of thermal desorption annular furnace, and near pyrolysis zone, is used for
The high-temperature oil gas mixture that collection is volatilized.
Soil cooling device 3 is the double helix drawing mechanism with jacket pipe, is indirect water-cooling but device, between soil passes through
Feeding stock ground or backfill or outward transport landfill after water receiving is cold.Soil cooling device 3 include soil entrance, condensing water inlet,
Soil outlet after cooling.Wherein, soil entrance is connected with the soil outlet without heat carrier heat accumulating type rotating bed 2.
Smoke eliminator 4 includes smoke inlet, condensation-water drain, purifying smoke outlet.Wherein, smoke inlet with without heat
The exhanst gas outlet connection of carrier heat accumulating type rotating bed 2, condensation-water drain is connected with the condensing water inlet of soil cooling device 3.
Also, mesoporous silicon substrate zeolite adsorption reaction zone is provided with smoke eliminator 4, mesoporous silicon substrate zeolite therein is used
Pollutant in flue gas is adsorbed, realizes the qualified discharge of flue gas.
As shown in figure 1, to be shown with the flow of bagasse repairing organic-heavy-metal composite pollution soil in the utility model
It is intended to.The technical solution of the utility model comprises the following steps：
(1) contaminated soil pretreatment
Contaminated soil is transported in the breaker in contaminated soil pretreatment unit 1 through contaminated soil feed(raw material)inlet
Row is broken, while filter out bulk inorganic matter therein through rotary screen, such as brick, stone, big part glass metal product, by dirt
Soil block of the dye soil breaking into the ㎝ of particle diameter ＜ 5.
Then, via bagasse entrance to adding bagasse in contaminated soil, and machine is carried out to contaminated soil and bagasse
Tool is mixed, the blended thing outlet discharge of the mixture for obtaining.
(2) the thermal desorption of contaminated soil
The mixture of above-mentioned steps discharge is sent into without in heat carrier heat accumulating type rotating bed 2 via mixture inlet.Mixture
In bagasse under the high temperature action of pyrolysis zone, occur pyrolysis charring reaction, the sugarcane charcoal for being generated structure charge,
In the presence of oxygen-containing functional group, hydroxyl complexing chelating, the heavy metal in absorption contaminated soil.Meanwhile, the hot conditions of pyrolysis zone
Stabilization/the immobilization of heavy metal can be promoted.The time of thermal desorption reaction is 30~60min.
In thermal desorption course of reaction, there is pyrolysis charring reaction in bagasse, can also generate volatile matter, and it can be changed into oil gas
Mixed with the volatile organic contaminant that thermal desorption goes out, rotated without heat carrier heat accumulating type via high-temperature oil gas outlet discharge
Bed 2.
Above-mentioned high-temperature oil gas mixture, can be via high-temperature oil gas entrance feeding without the storage in heat carrier heat accumulating type rotating bed 2
In hot type gas fired radiant tubes.It can carry out burning heat production as fuel in regenerative gas radiant tube, be without heat carrier accumulation of heat
There is thermal desorption reaction in formula revolving bed 2 and heat is provided.The flue gas of combustion reaction generation is discharged via exhanst gas outlet.
By the high temperature cleaning soil after thermal desorption and heavy metals immobilization, revolved without heat carrier heat accumulating type through soil outlet discharge
Rotated bed 2.
(3) soil cooling
During above-mentioned high temperature cleaning soil is via soil entrance feeding soil cooling device 3, wherein in the presence of condensed water
Room temperature is cooled to indirectly, and via soil outlet discharge after cooling.Can go out stock ground into soil after soil discharge after cooling,
Or backfill or outward transport landfill.So as to realize the reparation of organic matter-heavy-metal composite pollution soil.
(4) gas cleaning
The above-mentioned flue gas discharged through regenerative gas radiant tube, via in smoke inlet feeding smoke eliminator 4.Flue gas
In pollutant removed wherein, be purified flue gas, and exported via purifying smoke and discharge, realize the row up to standard of tail gas
Put.
During pollutant removing in flue gas, water vapor condensation therein is water.The condensed water is via condensation-water drain
Discharge, and soil cooling device 3 sent into by condensing water inlet, for cooling down high-temperature cleaning soil.
Embodiment
The present embodiment is directed to organic matter and heavy-metal composite pollution thing, and voluntarily configuration contains heavy metal lead, cadmium and organic
Thing benzanthracene, the composite analogy contaminated soil of phenol are subjects, carry out contaminated soil remediation treatment experiment.
In the present embodiment, the parameter that contaminated soil carries out thermal desorption treatment is：Treating capacity is 20t/d, dry section temperature is
110 DEG C, pyrolysis zone temperature is 500 DEG C, and the thermal desorption time is 45min.The content of organic matter in soil is determined after thermal desorption reaction
And the leaching concentration of heavy metal.
Organic removal rate and leaching rate of heavy metals in the contaminated soil of table 1
Can be obtained by table 1, the utility model can utilize bagasse, realize a huge sum of money in organic matter-heavy-metal composite pollution soil
Removed while category and Organic Pollution, and removal efficiency is high, it is easy to operate.
It should be noted that each embodiment above by reference to described by accompanying drawing is only used to illustrate the utility model rather than limit
Scope of the present utility model is made, it will be understood by those within the art that, do not departing from spirit of the present utility model and model
The modification carried out to the utility model on the premise of enclosing or equivalent, all should cover within the scope of the utility model.
Additionally, signified outer unless the context, the word for occurring in the singular includes plural form, and vice versa.In addition, removing non-specifically
Explanation, then all or part of of any embodiment can combine all or part of of any other embodiment and use.
Claims (5)
1. a kind of system of use bagasse repairing organic-heavy-metal composite pollution soil, it is characterised in that the system includes
Without heat carrier heat accumulating type rotating bed, soil cooling device；
It is described to include thermal desorption annular furnace, regenerative gas radiant tube, the regenerative gas without heat carrier heat accumulating type rotating bed
Radiant tube is located on the furnace wall of the thermal desorption annular furnace；The thermal desorption annular furnace includes dry section and pyrolysis zone；
It is described that without being provided with heat carrier heat accumulating type rotating bed, mixture inlet, soil are exported, high-temperature oil gas are exported, flue gas goes out
Mouthful；Wherein, the high-temperature oil gas outlet is located at pyrolysis zone top；
The soil cooling device include soil entrance, condensing water inlet, cooling after soil outlet, the soil entrance with it is described
Soil outlet connection without heat carrier heat accumulating type rotating bed.
2. system according to claim 1, it is characterised in that there are the regenerative gas radiant tube high-temperature oil gas to enter
Mouthful, the high-temperature oil gas outlet that the high-temperature oil gas entrance is set with pyrolysis zone top is connected.
3. system according to claim 1, it is characterised in that the soil cooling device is indirect water-cooling but device.
4. system according to claim 1, it is characterised in that further include contaminated soil pretreatment unit, the pollution
Soil pretreatment unit includes breaker, rotary screen；
The contaminated soil pretreatment unit has contaminated soil feed(raw material)inlet, bagasse entrance, mixture outlet, the mixing
Thing outlet is connected with the mixture inlet without heat carrier heat accumulating type rotating bed.
5. system according to claim 1, it is characterised in that further include smoke eliminator, gas cleaning dress
Mesoporous silicon substrate zeolite adsorption reaction zone is centered；
The smoke eliminator includes smoke inlet, condensation-water drain, purifying smoke outlet；
The smoke inlet is connected with the exhanst gas outlet without heat carrier heat accumulating type rotating bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245070.4U CN206276717U (en) | 2016-11-14 | 2016-11-14 | A kind of system of utilization bagasse repairing organic heavy-metal composite pollution soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621245070.4U CN206276717U (en) | 2016-11-14 | 2016-11-14 | A kind of system of utilization bagasse repairing organic heavy-metal composite pollution soil |
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| Publication Number | Publication Date |
|---|---|
| CN206276717U true CN206276717U (en) | 2017-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621245070.4U Expired - Fee Related CN206276717U (en) | 2016-11-14 | 2016-11-14 | A kind of system of utilization bagasse repairing organic heavy-metal composite pollution soil |
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| CN (1) | CN206276717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746181A (en) * | 2018-08-22 | 2018-11-06 | 苏州三体智能科技有限公司 | A kind of soil remediation equipment and its working method |
-
2016
- 2016-11-14 CN CN201621245070.4U patent/CN206276717U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108746181A (en) * | 2018-08-22 | 2018-11-06 | 苏州三体智能科技有限公司 | A kind of soil remediation equipment and its working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: System for utilize bagasse to restore organic matter heavy metal combined pollution soil Effective date of registration: 20180322 Granted publication date: 20170627 Pledgee: The Bank of Beijing Limited by Share Ltd. Anwar Road Branch Pledgor: Shenwu Technology Group Co.,Ltd. Registration number: 2018990000210 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190121 Granted publication date: 20170627 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220921 Granted publication date: 20170627 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170627 |