CN211191401U - Soil thermal desorption equipment - Google Patents
Soil thermal desorption equipment Download PDFInfo
- Publication number
- CN211191401U CN211191401U CN201921935560.0U CN201921935560U CN211191401U CN 211191401 U CN211191401 U CN 211191401U CN 201921935560 U CN201921935560 U CN 201921935560U CN 211191401 U CN211191401 U CN 211191401U
- Authority
- CN
- China
- Prior art keywords
- chamber
- cooling
- heating
- preheating
- insulation plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a soil thermal desorption equipment: the device comprises a pyrolysis cylinder, wherein the pyrolysis cylinder sequentially comprises a preheating chamber, a heating chamber and a cooling chamber along the material running direction, and the preheating chamber, the heating chamber and the cooling chamber are sequentially and coaxially communicated; spaces among the preheating chamber, the heating chamber, the cooling chamber and the pyrolysis cylinder are sequentially separated by a heat insulation plate to form a preheating cavity, a heating cavity and a cooling cavity; a heating structure is arranged in the heating cavity, and a cooling structure is arranged in the cooling cavity; the screw shaft penetrates through the preheating chamber, the heating chamber and the cooling chamber in sequence, and transports materials along the preheating chamber to the cooling chamber; the soil is automatically conveyed to each soil treatment chamber through the spiral shaft for treatment, and the working efficiency of soil thermal desorption can be guaranteed after organic pollutants in the soil are fully filled in the soil and are volatilized and separated.
Description
Technical Field
The utility model relates to a soil pollution administers, especially relates to a soil thermal desorption equipment.
Background
In the method for removing organic matters in soil by using a thermal desorption method, the soil is generally directly put into a thermal desorption box to be fully heated, so that organic pollutants in the soil are heated and volatilized, and then the soil is taken out. However, although the desorption effect on soil is good, the efficiency of soil thermal desorption is low, and large-scale soil desorption is inconvenient.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects existing in the prior art, the utility model provides a soil thermal desorption device which can solve the problems.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses a soil thermal desorption equipment: the device comprises a pyrolysis cylinder, wherein the pyrolysis cylinder sequentially comprises a preheating chamber, a heating chamber and a cooling chamber along the material running direction, and the preheating chamber, the heating chamber and the cooling chamber are sequentially and coaxially communicated; spaces among the preheating chamber, the heating chamber, the cooling chamber and the pyrolysis cylinder are sequentially separated by a heat insulation plate to form a preheating cavity, a heating cavity and a cooling cavity; a heating structure is arranged in the heating cavity, and a cooling structure is arranged in the cooling cavity; the screw shaft penetrates through the preheating chamber, the heating chamber and the cooling chamber in sequence, and transports materials along the preheating chamber to the cooling chamber; the soil is automatically conveyed to each soil treatment chamber through the spiral shaft for treatment, and the working efficiency of soil thermal desorption can be guaranteed after organic pollutants in the soil are fully filled in the soil and are volatilized and separated.
Furthermore, the heating structure is an electric heating pipe which is spirally wound on the outer side wall of the heating chamber; the outer side wall of the heating chamber is closely attached with a heat insulation plate; the side wall of the heating chamber is made of a heat-conducting metal material; the method of heating the side wall of the heating chamber transfers heat to the soil in the heating chamber, so that the soil is heated and desorbed, and the structure is simple.
Furthermore, the heat insulation plate comprises a first heat insulation plate and a second heat insulation plate, the end part of the preheating chamber and the end part of the heating chamber are isolated by the first heat insulation plate, and the end part of the heating chamber and the end part of the cooling chamber are isolated by the second heat insulation plate; the thickness of the first temperature insulation plate is smaller than that of the second temperature insulation plate; the first heat insulation plate and the second heat insulation plate are made of heat insulation materials respectively, so that the temperature of the side wall of the heating chamber can be prevented from being transferred to the side wall of the preheating chamber and the side wall of the cooling chamber.
Furthermore, a plurality of heat conduction through holes are formed in the first heat insulation plate, and the heat conduction through holes are communicated with the preheating cavity and the heating cavity; preheating chamber lateral wall in the intracavity sets up to the heat conduction sheet metal, is used for preheating the indoor soil of preheating with the waste heat that electric heating pipe produced, and the soil of being convenient for like this transport in the heating chamber heats to desorption temperature rapidly, also makes the heat obtain make full use of simultaneously.
Furthermore, the cooling structure comprises a cooling box, the cooling box is arranged outside the cooling chamber in a coating mode, and cooling liquid which flows in a circulating mode is arranged in the cooling box; the soil in the cooling chamber is cooled through the cooling liquid, so that the soil can be discharged conveniently.
Furthermore, the spiral blade of the spiral shaft is matched with the inner cavity of the preheating chamber; the end part of the screw shaft, which is positioned on the pyrolysis cylinder body, is connected with a transmission motor, and the screw shaft is driven to rotate by the transmission motor; the soil is pushed to move by the helical blades.
Furthermore, a funnel-shaped feeding hole is formed in the preheating chamber, and a discharging pipe is arranged at the end part of the cooling chamber.
Has the advantages that: the utility model discloses a soil thermal desorption equipment, soil loop through preheating chamber, heating chamber and cooling chamber for organic matter in the soil can be heated and fully volatilize the separation, has realized thermal make full use of simultaneously, has improved soil thermal desorption efficiency.
Drawings
FIG. 1 is a schematic structural view of the soil thermal desorption apparatus of the present invention;
fig. 2 is a schematic partial sectional structure view of fig. 1 according to the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The soil thermal desorption equipment as shown in the attached figures 1-2 comprises: the device comprises a pyrolysis cylinder body 1, wherein a preheating chamber 2, a heating chamber 3 and a cooling chamber 4 are sequentially arranged in the pyrolysis cylinder body 1 along the material running direction, the preheating chamber 2, the heating chamber 3 and the cooling chamber 4 are arranged in a cylindrical shape, and the diameters of inner cavities of the preheating chamber 2, the heating chamber 3 and the cooling chamber 4 are equal; the preheating chamber 2, the heating chamber 3 and the cooling chamber 4 are sequentially and coaxially communicated; a funnel-shaped feed opening 22 is arranged at the end of the preheating chamber 2 far away from the heating chamber, and a discharge pipe 41 is arranged at the end of the cooling chamber 4 far away from the heating chamber. Spaces among the preheating chamber 2, the heating chamber 3, the cooling chamber 4 and the pyrolysis cylinder 1 are sequentially separated by a heat insulation plate 5 to form a preheating cavity 20, a heating cavity 30 and a cooling cavity 40; a heating structure is arranged in the heating cavity 30, and a cooling structure is arranged in the cooling cavity 40; therefore, the soil passes through the preheating chamber 2, the heating chamber 3 and the cooling chamber 4 in sequence, and the preheating chamber 2 and the heating chamber 3 gradually heat the soil, so that all parts of the soil can reach the thermal desorption temperature, and the full thermal desorption of organic matters is facilitated; and the cooling chamber 4 is arranged to rapidly cool the soil, so that the soil is discharged from the thermal desorption equipment. The device comprises a screw shaft 81, wherein the screw shaft 81 is sequentially arranged in a preheating chamber 2, a heating chamber 3 and a cooling chamber 4 in a penetrating manner, materials are conveyed towards the cooling chamber 4 along the preheating chamber 2, and continuous thermal desorption of soil is realized through a screw blade on the screw shaft 81, so that the working efficiency of thermal desorption of mass soil is improved.
The heating structure is an electric heating tube 6, and the heating principle and the circuit structure of the electric heating tube 6 are very conventional in the prior art and are not described herein. The electric heating pipe 6 is spirally wound on the outer side wall of the heating chamber 3; the outer side wall of the heating chamber 3 is closely provided with a heat insulation plate 31; thus, heat is transferred by contact with the outer wall of the heating chamber 3, so that the heat transfer efficiency is high. The side wall of the heating chamber 3 is made of heat-conducting metal material, such as metal iron.
The heat insulation plate 5 comprises a first heat insulation plate 51 and a second heat insulation plate 52, the end part of the preheating chamber 2 and the end part of the heating chamber 3 are isolated by the first heat insulation plate 51, and the end part of the heating chamber 3 and the end part of the cooling chamber 4 are isolated by the second heat insulation plate 52, so that the temperature of the side wall of the heating chamber 3 can be prevented from being transferred to the side wall of the preheating chamber 2 and the side wall of the cooling chamber 4, and meanwhile, the individual replacement and maintenance of each processing chamber are facilitated. The thickness of the first insulating plate 51 is less than the thickness of the second insulating plate 52, which ensures that heat in the heating chamber 30 is not transferred to the cooling chamber 40. The first thermal insulation board 51 and the second thermal insulation board 52 are made of thermal insulation material, such as asbestos material.
The first heat insulation plate 51 is provided with a plurality of heat conduction through holes 50, and the heat conduction through holes 50 are communicated with the preheating cavity 20 and the heating cavity 30; the side wall of the preheating chamber 2 in the preheating chamber 20 is provided with a heat conducting thin plate 21, which can be made of metal aluminum. A part of the heat of the electric heating tube 6 is propagated to the preheating chamber 20 through air, and the part of the heat is heated to the preheating chamber 2 through the heat conducting thin plate 21 to preheat the soil, so that the heat is fully utilized.
The cooling structure comprises a cooling box 7, the cooling box 7 is arranged outside the cooling chamber 4 in a coating mode, and cooling liquid which flows in a circulating mode is arranged in the cooling box 7; the soil in the cooling chamber 4 can be rapidly cooled by absorbing heat through the cooling liquid, so that the soil can be taken out conveniently. Meanwhile, an organic matter pyrolysis gas pipe 9 is arranged in the cooling chamber 4, and the pyrolysis gas is collected and centralized through the organic matter pyrolysis gas pipe 9.
The spiral shaft 81 is coaxially arranged in the preheating chamber 2, the heating chamber 3 and the cooling chamber 4, and the spiral blades of the spiral shaft 81 are matched with the inner cavities of the preheating chamber 2, the heating chamber 3 and the cooling chamber 4, so that continuous thermal desorption of soil can be realized through the spiral blades on the spiral shaft 81, and the working efficiency of large-batch thermal desorption of soil is improved; the end part of the screw shaft 81, which is positioned at the pyrolysis cylinder 1, is connected with a transmission motor 82, and the transmission motor 82 drives the screw shaft 81 to rotate.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. The soil thermal desorption equipment is characterized in that: the device comprises a pyrolysis cylinder body (1), wherein a preheating chamber (2), a heating chamber (3) and a cooling chamber (4) are sequentially arranged in the pyrolysis cylinder body (1) along the material running direction, and the preheating chamber (2), the heating chamber (3) and the cooling chamber (4) are sequentially and coaxially communicated; spaces among the preheating chamber (2), the heating chamber (3), the cooling chamber (4) and the pyrolysis cylinder (1) are separated by a heat insulation plate (5) in sequence to form a preheating cavity (20), a heating cavity (30) and a cooling cavity (40); a heating structure is arranged in the heating cavity (30), and a cooling structure is arranged in the cooling cavity (40); the screw shaft (81) is arranged in the preheating chamber (2), the heating chamber (3) and the cooling chamber (4) in a penetrating mode in sequence, and materials are conveyed to the cooling chamber (4) along the preheating chamber (2).
2. The soil thermal desorption apparatus of claim 1, wherein: the heating structure is an electric heating pipe (6), and the electric heating pipe (6) is spirally wound on the outer side wall of the heating chamber (3); the outer side wall of the heating chamber (3) is closely provided with a heat insulation plate (31); the side wall of the heating chamber (3) is made of heat-conducting metal.
3. The soil thermal desorption apparatus of claim 2, wherein: the heat insulation plate (5) comprises a first heat insulation plate (51) and a second heat insulation plate (52), the end part of the preheating chamber (2) and the end part of the heating chamber (3) are isolated by the first heat insulation plate (51), and the end part of the heating chamber (3) and the end part of the cooling chamber (4) are isolated by the second heat insulation plate (52); the thickness of the first thermal insulation plate (51) is smaller than that of the second thermal insulation plate (52); the first heat insulation plate (51) and the second heat insulation plate (52) are made of heat insulation materials respectively.
4. A soil thermal desorption apparatus according to claim 3 wherein: a plurality of heat conduction through holes (50) are formed in the first heat insulation plate (51), and the heat conduction through holes (50) are communicated with the preheating cavity (20) and the heating cavity (30); the side wall of the preheating chamber (2) in the preheating cavity (20) is provided with a heat-conducting thin plate (21).
5. The soil thermal desorption apparatus of claim 4, wherein: the cooling structure comprises a cooling box (7), the cooling box (7) is arranged outside the cooling chamber (4) in a coating mode, and cooling liquid flowing in a circulating mode is arranged in the cooling box (7).
6. The soil thermal desorption apparatus of claim 5, wherein: the spiral blades of the spiral shaft (81) are matched with the inner cavity of the preheating chamber (2); the end part of the screw shaft (81) positioned on the pyrolysis cylinder body (1) is connected with a transmission motor (82), and the screw shaft (81) is driven to rotate by the transmission motor (82).
7. The soil thermal desorption apparatus of claim 6, wherein: the preheating chamber (2) is provided with a funnel-shaped feeding hole (22), and the end part of the cooling chamber (4) is provided with a discharging pipe (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935560.0U CN211191401U (en) | 2019-11-11 | 2019-11-11 | Soil thermal desorption equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921935560.0U CN211191401U (en) | 2019-11-11 | 2019-11-11 | Soil thermal desorption equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211191401U true CN211191401U (en) | 2020-08-07 |
Family
ID=71850221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921935560.0U Active CN211191401U (en) | 2019-11-11 | 2019-11-11 | Soil thermal desorption equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211191401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893432A (en) * | 2021-03-04 | 2021-06-04 | 东南大学 | Vertical internal circulation soil thermal desorption device |
| CN113732038A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil heat treatment system and process |
-
2019
- 2019-11-11 CN CN201921935560.0U patent/CN211191401U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893432A (en) * | 2021-03-04 | 2021-06-04 | 东南大学 | Vertical internal circulation soil thermal desorption device |
| CN113732038A (en) * | 2021-09-13 | 2021-12-03 | 中冶节能环保有限责任公司 | Contaminated soil heat treatment system and process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211191401U (en) | Soil thermal desorption equipment | |
| CN103341486A (en) | Polluted soil electromagnetic thermal desorption system | |
| CN204440986U (en) | A kind of annelaing pot waste heat is used for the system that device for squeezing glue peels off scrap rubber | |
| CN112662409A (en) | Cracking conversion device for producing carbon and processing technology thereof | |
| CN218673141U (en) | Environment-friendly energy-saving high-temperature electric furnace | |
| CN210560254U (en) | Charcoal discharging device of biomass straw carbonization furnace | |
| CN203554798U (en) | A circuit board baking box with a heat energy recovery device | |
| CN212778596U (en) | Preheating equipment | |
| CN215002911U (en) | Ceramic roller high-temperature heating furnace | |
| CN212640379U (en) | High-temperature carbonization device for municipal domestic waste | |
| CN211170582U (en) | Double-layer roller carbonizing device | |
| CN204550368U (en) | A kind of sludge heat drying cooling integrated machine | |
| CN208667106U (en) | A kind of equipment using the high-purity artificial graphite of mesophase pitch carbonized stock continuous production | |
| CN209923258U (en) | Organic solid waste energy-saving drying and carbonizing integrated machine | |
| CN211041793U (en) | High-efficient sintering rapid cooling's bell jar stove | |
| CN205443032U (en) | Helical feeding device and float glass kiln | |
| CN206012013U (en) | A kind of electrode slurry bed of material drying unit | |
| CN215236741U (en) | Soil thermal desorption system | |
| CN218741374U (en) | Solvent-free adhesive preheating and automatic feeding device | |
| CN214250584U (en) | Quick cooling industrial furnace | |
| CN220380279U (en) | Silicon carbide processing cooling device | |
| CN210107987U (en) | Heat pipe type roller drying bin | |
| CN107083247A (en) | A kind of biomass pyrogenation gasification carbonizing apparatus | |
| CN220018116U (en) | Condensation-preventing rotary kiln | |
| CN217092095U (en) | Multistage dewatering device of menthol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |