CN202803741U - Soil remediation system - Google Patents
Soil remediation system Download PDFInfo
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- CN202803741U CN202803741U CN 201220518174 CN201220518174U CN202803741U CN 202803741 U CN202803741 U CN 202803741U CN 201220518174 CN201220518174 CN 201220518174 CN 201220518174 U CN201220518174 U CN 201220518174U CN 202803741 U CN202803741 U CN 202803741U
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- soil
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- preheating
- rotary kiln
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Abstract
The utility model discloses a soil remediation system which comprises a preheating device, a heating device, a heat recovering device and a heat transmission device, wherein the preheating device is used for preheating the polluted soil, the heating device is connected with the preheating device and used for heating the polluted soil performed with the preheating treatment and separating pollutants in the soil; and the heat recovering device is connected with the heating device for recovering the heat of the polluted soil heated by the heating device. The soil remediation system further comprises the heat transmission device, wherein the heat recovering device is communicated with the preheating device through the heat transmission device, so that the heat recovering device serves as the heat source of the preheating device. The soil remediation system effectively solves the problem of cost of the soil polluted by the heat remediation, is favorable for fast cooling of the soil and enables fast backfill of the soil to be easy.
Description
Technical field
The utility model relates to environmental protection technical field, relates in particular to a kind of soil repair system.
Background technology
Along with development and the industrialized gradually aggravation of society, increase gradually in the industrial pollution place.In order to guarantee the health of ecological environment and human body, the reparation of contaminated soil has become the problem that needs solution too impatient to wait in the contaminated site.
At present, the soil remediation technology comprise that burning, pyrolysis are analysed, Soil leaching, dystopy immobilization/stabilization technology and biodegradation etc.Wherein, China adopts incineration technology mostly when processing hazardous waste and contaminated soil.But burn the character of directly having destroyed soil itself, make soil lose original function, and energy consumption is higher, produce easily secondary pollution.Compare incineration technology, pyrolysis is analysed technology and has been subject to increasing attention by the pollutant that mode of heating separates in the soil.
For example, publication number is that the Chinese patent application of CN 101530858A discloses a kind of soil pollution thermal desorption restoration processing system, this system belongs to the soil remediation treatment system, comprise feed system, heat source system and control system, also comprise thermal desorption system and exhaust gas processing device, wherein thermal desorption system is comprised of air-introduced machine and Re Ti converter, and exhaust gas processing device is comprised of deduster and alkali liquor absorption tower.This utility model has only provided the technology of the multiple contaminated soil of a kind of hot repair.
In addition, the Chinese patent application of publication number CN 102284473A provides a kind of drum-type soil thermal desorption repair system, this drum-type soil thermal desorption repair system comprises the feed arrangement that is positioned at drum front end, the drawing mechanism that is positioned at the cylinder rear end, burner hearth, be arranged on burner hearth heat-insulation layer around the burner hearth, be arranged in burner hearth cylinder, be arranged on burner hearth bottom heating element heater, be used for driving transmission device that cylinder rotates and for the treatment of the tail gas treating unit of tail gas.
But in above-mentioned two technical schemes and the existing similar techniques, the cost that Soil Thermal is repaired is higher, especially when needs heat a large amount of soil, then needs a large amount of heats.In other words, to analyse technical costs higher in existing soil remediation pyrolysis.
In view of this, how effectively reducing the multiple cost of hot repair of contaminated soil, is the problem that those skilled in the art need solution badly.
The utility model content
The purpose of this utility model is to propose a kind of soil repair system, in the multiple process of effective solution contaminated soil hot repair, and the problem that heat cost is too high.
The utility model discloses a kind of soil repair system, comprise preheating device, heater and heat reclamation device.Wherein, preheating device is used for contaminated soil is carried out preheating; Heater is connected with described preheating device, and the contaminated soil for after the heating the pre-heat treatment separates the pollutant in the soil; Heat reclamation device is connected with described heater, reclaims the heat through the contaminated soil of described heater heating; And described soil repair system also comprises heat transfer apparatus, and described heat reclamation device is connected with described preheating device through described heat transfer apparatus, makes described heat reclamation device as the thermal source of described preheating device.
Further, in the above-mentioned soil repair system, described heater is rotary kiln, and described rotary kiln comprises the rotary kiln body, and an end of described rotary kiln body is provided with the rotary kiln charging aperture, and the other end is provided with the rotary kiln discharging opening; And described rotary kiln charging aperture is connected with described preheating device; Described rotary kiln discharging opening is connected with described heat reclamation device.
Further, in the above-mentioned soil repair system, described preheating device comprises the soil preheating channel, and, be used for the water back to described soil preheating channel heating; Described soil preheating channel is connected with described rotary kiln charging aperture; Described water back is wound in described soil preheating channel, and described water back is connected with described heat reclamation device through described heat transfer apparatus.
Further, in the above-mentioned soil repair system, described heat reclamation device comprises the soil tapping channel, and, be used for carrying out the first heat exchanging pipe that heat is transmitted with described soil tapping channel; Described soil tapping channel is connected with the discharging opening of described rotary kiln; Described the first heat exchanging pipe is wound in described soil tapping channel, and described the first heat exchanging pipe is connected with described water back through described heat transfer apparatus.
Further, in the above-mentioned soil repair system, described heat transfer apparatus comprise the heat conducting medium circulating pump, with the thermal conductance transmission pipeline of leading the medium circulation pump and being connected, and, be arranged at the heat conducting medium in the described thermal conductance transmission pipeline; And described water back is connected with described the first heat exchanging pipe through described thermal conductance transmission pipeline.
Further, in the above-mentioned soil repair system, in the described soil preheating channel, the feedstock direction of soil is opposite with the flow direction of described heat conducting medium.
Further, in the above-mentioned soil repair system, in the described soil tapping channel, the discharging direction of soil is opposite with the flow direction of described heat conducting medium.
Further, in the above-mentioned soil repair system, described water back uniform winding is in described soil preheating channel; And described the first heat exchanging pipe uniform winding is in described soil tapping channel.
Further, in the above-mentioned soil repair system, described heater also connects flue gas processing device, is provided with the second heat exchanging pipe in the described flue gas processing device; And described the second heat exchanging pipe is connected with described preheating device by described heat transfer apparatus.
The utility model has been given full play to the effect of the waste heat of the soil that is heated of isolating pollutant, and with the heat of the waste heat thermal source as the soil Heat Treatment, effectively reduces the Cost Problems of the multiple contaminated soil of hot repair; And, because soil after discharging, has carried out the recycling of heat, therefore, be conducive to the fast cooling of soil, be easy to the quickly stuffing of soil.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural principle block diagram of the utility model soil repair system;
Fig. 2 is the structural representation of the utility model soil repair system preferred embodiment.
Description of reference numerals
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
With reference to Fig. 1, Fig. 1 is the structural principle block diagram of the utility model soil repair system.
The utility model soil repair system comprises preheating device 100, heater 200, heat reclamation device 300 and heat transfer apparatus 400.Wherein, preheating device 100 is used for contaminated soil is carried out preheating; Heater 200 is connected with preheating device 100, and the contaminated soil for after the heating the pre-heat treatment separates the pollutant in the soil; Heat reclamation device 300 is connected with heater 200, reclaims the heat through the contaminated soil of heater 200 heating; And soil repair system also comprises heat transfer apparatus 400, and heat reclamation device 300 is connected with preheating device 100 through heat transfer apparatus 400, makes heat reclamation device 300 as the thermal source of preheating device 100.
As can be seen from Figure 1, the utility model has been given full play to the effect of the waste heat of the soil that is heated of isolating pollutant, and with the heat of the waste heat thermal source as the soil the pre-heat treatment, effectively reduces the Cost Problems of the multiple contaminated soil of hot repair; And, because soil after discharging, has carried out the recycling of heat, therefore, be conducive to the fast cooling of soil, be easy to the quickly stuffing of soil.
The soil repair system preferred embodiment
Below, in conjunction with Fig. 2, a preferred embodiment of the utility model soil repair system is described in detail.
Heater in the present embodiment is rotary kiln.Preheating device comprises soil preheating channel 5, and, be used for the water back 14 to 5 heating of soil preheating channel.Heat reclamation device comprises soil tapping channel 10, and is used for carrying out the first heat exchanging pipe 13 that heat is transmitted with soil tapping channel 10.Heat transfer apparatus comprise heat conducting medium circulating pump 2, with the thermal conductance transmission pipeline 1 of leading medium circulation pump 2 and being connected, and, be arranged at the heat conducting medium in the thermal conductance transmission pipeline 1; And water back 14 is connected with the first heat exchanging pipe 13 through thermal conductance transmission pipeline 1.
Rotary kiln comprises rotary kiln body 3, and an end of rotary kiln body 3 is provided with rotary kiln charging aperture 6, and the other end is provided with rotary kiln discharging opening 9; And rotary kiln charging aperture 3 is connected with soil preheating channel 5 in the preheating device; Rotary kiln discharging opening 9 is connected with soil tapping channel 10 in the heat reclamation device.
In the preheating device, water back 14 is wound in soil preheating channel 5, and preferably, water back 14 uniform winding are in soil preheating channel 5.And the thermal conductance transmission pipeline 1 of water back 14 in heat transfer apparatus is connected with the first heat exchanging pipe 13 in the heat reclamation device.Preferably, the soil preheating channel is domatic.In the present embodiment, soil preheating channel 5 is irony, water back 14 is wound in the soil preheating channel 5 of irony, directly do not contact with contaminated soil, such design, can effectively prevent from being detained contaminated soil on the water back 14, simultaneously, also can avoid the above-mentioned soil preheating channel 5 of contaminated soil corrosion.In the soil preheating channel 5, the feedstock direction of soil is opposite with the flow direction of heat conducting medium in the water back 14, its objective is, contaminated soil can be contacted with heat-exchange tube, obtains sufficient preheating.
In the heat reclamation device, the first heat exchanging pipe 13 is wound in soil tapping channel 10, and preferably, the first heat exchanging pipe 13 even cloth are wound in soil tapping channel 10.Realize reclaiming the waste heat of soil after repairing; And the first heat exchanging pipe 13 is connected with water back through heat transfer apparatus.Similar with above-mentioned preheating device, the first heat exchanging pipe 13 does not directly contact with repairing rear soil, and the flow direction and the discharging opposite direction of the first heat exchanging pipe 13 internal thermal exchange medias are to be easy to exchange heat.
In addition, in the embodiment shown in Figure 2, the tail gas treating unit for the treatment of tail gas is not shown, when reality was implemented, this processing unit was necessary.For a person skilled in the art, the vent gas treatment mode is known, and present embodiment does not repeat them here.
In addition, a part of heat exchanging pipe (the second heat exchanging pipe) also can be laid in the exhaust gas processing device, and then reclaims the heat of tail gas, and the fast reducing exhaust temperature, is beneficial to the processing of tail gas.In other words, with in the flue gas processing device that heater is connected be provided with the second heat exchanging pipe; This second heat exchanging pipe is connected with described preheating device by heat transfer apparatus.That is, the waste heat of flue gas also has been used as the thermal source of preheating device.
In the present embodiment, the waste heat of soil transfers to water back 14 through thermal conductance transmission pipeline 1 after the hot repair again, and then, water back 14 carries out heat exchange with soil preheating channel 5, to reach the purpose to pending soil preheating.The benefit of doing like this is:
The first, make soil before entering heater, carry out preheating, improved the contaminated soil moisture, reduce it is directly heated required heat.And the heat of the pre-heat treatment is the heat that in the past is wasted, thereby the soil repair system of employing present embodiment can effectively reduce the again cost of contaminated soil of hot repair
The second, because soil after the discharging, has carried out the recycling of heat from the rotary kiln discharging opening, therefore, be conducive to the fast cooling of soil, be easy to the quickly stuffing of soil.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. a soil repair system is characterized in that, comprising:
Preheating device is used for contaminated soil is carried out preheating;
Heater is connected with described preheating device, and the contaminated soil for after the heating the pre-heat treatment separates the pollutant in the soil;
Heat reclamation device is connected with described heater, reclaims the heat through the contaminated soil of described heater heating;
And described soil repair system also comprises heat transfer apparatus, and described heat reclamation device is connected with described preheating device through described heat transfer apparatus, makes described heat reclamation device as the thermal source of described preheating device.
2. soil repair system according to claim 1 is characterized in that,
Described heater is rotary kiln, and described rotary kiln comprises the rotary kiln body, and an end of described rotary kiln body is provided with the rotary kiln charging aperture, and the other end is provided with the rotary kiln discharging opening; And
Described rotary kiln charging aperture is connected with described preheating device;
Described rotary kiln discharging opening is connected with described heat reclamation device.
3. soil repair system according to claim 2 is characterized in that,
Described preheating device comprises the soil preheating channel, and, be used for the water back to described soil preheating channel heating;
Described soil preheating channel is connected with described rotary kiln charging aperture;
Described water back is wound in described soil preheating channel, and described water back is connected with described heat reclamation device through described heat transfer apparatus.
4. soil repair system according to claim 3 is characterized in that,
Described heat reclamation device comprises the soil tapping channel, and, be used for carrying out the first heat exchanging pipe that heat is transmitted with described soil tapping channel;
Described soil tapping channel is connected with the discharging opening of described rotary kiln;
Described the first heat exchanging pipe is wound in described soil tapping channel, and described the first heat exchanging pipe is connected with described water back through described heat transfer apparatus.
5. soil repair system according to claim 4 is characterized in that,
Described heat transfer apparatus comprise the heat conducting medium circulating pump, with the thermal conductance transmission pipeline of leading the medium circulation pump and being connected, and, be arranged at the heat conducting medium in the described thermal conductance transmission pipeline;
And described water back is connected with described the first heat exchanging pipe through described thermal conductance transmission pipeline.
6. soil repair system according to claim 5 is characterized in that,
In the described soil preheating channel, the feedstock direction of soil is opposite with the flow direction of described heat conducting medium.
7. soil repair system according to claim 6 is characterized in that,
In the described soil tapping channel, the discharging direction of soil is opposite with the flow direction of described heat conducting medium.
8. soil repair system according to claim 7 is characterized in that,
Described water back uniform winding is in described soil preheating channel; And
Described the first heat exchanging pipe uniform winding is in described soil tapping channel.
9. soil repair system according to claim 1 is characterized in that,
Described heater also connects flue gas processing device, is provided with the second heat exchanging pipe in the described flue gas processing device; And described the second heat exchanging pipe is connected with described preheating device by described heat transfer apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518174 CN202803741U (en) | 2012-10-10 | 2012-10-10 | Soil remediation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220518174 CN202803741U (en) | 2012-10-10 | 2012-10-10 | Soil remediation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202803741U true CN202803741U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220518174 Expired - Fee Related CN202803741U (en) | 2012-10-10 | 2012-10-10 | Soil remediation system |
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| CN (1) | CN202803741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873087A (en) * | 2012-10-10 | 2013-01-16 | 北京中科通用能源环保有限责任公司 | Soil repairing system and soil repairing method |
| CN112139231A (en) * | 2020-09-16 | 2020-12-29 | 山东大成环境修复有限公司 | System and method for low-temperature thermal desorption of volatile organic contaminated soil |
-
2012
- 2012-10-10 CN CN 201220518174 patent/CN202803741U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873087A (en) * | 2012-10-10 | 2013-01-16 | 北京中科通用能源环保有限责任公司 | Soil repairing system and soil repairing method |
| CN112139231A (en) * | 2020-09-16 | 2020-12-29 | 山东大成环境修复有限公司 | System and method for low-temperature thermal desorption of volatile organic contaminated soil |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20191010 |
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| CF01 | Termination of patent right due to non-payment of annual fee |