CN211330712U - Thermal desorption fluidized bed furnace for soil remediation - Google Patents
Thermal desorption fluidized bed furnace for soil remediation Download PDFInfo
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- CN211330712U CN211330712U CN201921764229.7U CN201921764229U CN211330712U CN 211330712 U CN211330712 U CN 211330712U CN 201921764229 U CN201921764229 U CN 201921764229U CN 211330712 U CN211330712 U CN 211330712U
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Abstract
The utility model provides a be used for prosthetic thermal desorption fluidized bed furnace of soil, be used for prosthetic thermal desorption fluidized bed furnace of soil include: the device comprises an outer furnace body and an inner furnace body which are nested at intervals, wherein a soil introducing port and a soil leading-out port are formed in the side wall of the inner furnace body, and a discharging port is formed in the side wall of the outer furnace body; the distribution impeller is positioned right below the feeding hole and used for distributing the soil to be treated from the feeding hole; the thermal desorption fluidized bed furnace comprises a wind disc with ventilation holes, wherein the interior of the thermal desorption fluidized bed furnace is limited by the wind disc to form a soil treatment channel, and the soil treatment channel sequentially passes through a soil introducing port and a soil outlet from a feeding port to enter and exit the inner furnace body until reaching the discharging port. Above-mentioned a thermal desorption fluidized bed furnace for soil remediation, through arranging impeller and wind dish, makes the soil granule disperse through centrifugal force to make soil be in the boiling state and transfer heat rapidly through the hot-blast messenger soil of bottom, reach the effect of thermal desorption, simplified the structure, reduced the energy consumption, the reliability is higher.
Description
Technical Field
The utility model relates to a soil restoration technical field especially relates to a thermal desorption fluidized bed furnace for soil remediation.
Background
Thermal desorption is used as a non-combustion technology, the pollutant treatment range is wide, equipment is movable, the repaired soil can be reused, particularly, the chlorine-containing organic matters can be treated in a non-oxidative combustion mode, dioxin can be prevented from being generated, and the method is widely used for repairing the soil polluted by the organic pollutants.
Thermal desorption is a process in which organic contaminants in the soil are heated to a sufficient temperature by direct or indirect heat exchange under vacuum or while carrier gas is introduced, so that the organic contaminants are volatilized or separated from the contaminated medium and enter a gas treatment system.
Traditional thermal desorption device includes equipment such as condensing system, cooling tower, conveyer belt, and the structure is complicated, the energy consumption is higher, and the reliability is not enough.
SUMMERY OF THE UTILITY MODEL
To further simplifying thermal desorption device structure, reduce the problem of energy consumption, this application provides a thermal desorption fluidized bed furnace for soil remediation, makes the soil granule disperse through centrifugal force to the high temperature flue gas through the bottom makes soil be in the boiling state and conducts heat rapidly, reaches the effect of thermal desorption, has simplified the structure, has reduced the energy consumption.
A thermal desorption boiling furnace for soil remediation, thermal desorption boiling furnace for soil remediation include:
the device comprises an outer furnace body and an inner furnace body which are nested at intervals, wherein the bottom of each furnace body is provided with a hot air inlet, the top of each furnace body is provided with a hot air outlet, the hot air outlet of the outer furnace body is also used as a feeding hole for feeding soil to be treated, the side wall of the inner furnace body is provided with a soil introducing port and a soil guiding port, and the side wall of the outer furnace body is provided with a discharging hole;
the distribution impeller is positioned right below the feeding hole and used for distributing the soil to be treated from the feeding hole;
the air plate is provided with a plurality of positions and is respectively fixed in the inner furnace body and between the outer wall of the inner furnace body and the inner wall of the outer furnace body, the inside of the thermal desorption boiling furnace is limited by the air plate to form a soil treatment channel, and the soil treatment channel is formed by sequentially passing through the soil introducing port and the soil leading-out port from the feeding port to the inner furnace body until reaching the discharging port.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, the distribution impeller is installed at the top of the inner furnace body, and the thermal desorption fluidized bed furnace further includes:
the driving mechanism is arranged in the inner furnace body and is positioned at the bottom of the inner furnace body;
and one end of the transmission shaft is used as an input end and connected with the driving mechanism, and the other end of the transmission shaft is used as an output end and extends upwards through the inner furnace body and is connected with the distribution impeller.
Optionally, a protective sleeve is further arranged in the inner furnace body, and the driving mechanism and the transmission shaft are both arranged in the protective sleeve and isolated from the soil treatment channel.
Optionally, the top end of the protective sleeve extends out of the inner furnace body, and the distribution impeller is mounted at the top end of the protective sleeve.
Optionally, the feed inlet, the soil introducing port, the soil discharging port and the discharge port are sequentially arranged from high to low.
Optionally, the soil introducing port, the soil discharging port and the discharging port are respectively arranged at intervals along the circumferential direction of the furnace body.
Optionally, the wind plate includes:
the first air disc is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body and used for guiding the soil to be treated from the feeding hole to enter the inner furnace body through the soil introducing port;
the second air disc is fixedly connected in the inner furnace body and used for guiding the soil to be treated from the soil introducing port to be discharged out of the inner furnace body through the soil outlet;
and the third air disc is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body and is used for guiding the soil to be treated from the soil guide outlet to be discharged out of the thermal desorption boiling furnace through the discharge port.
Optionally, the first wind disk is annularly arranged between the outer wall of the inner furnace body and the inner wall of the outer furnace body, and gradually decreases inwards along the radial direction, and the inner edge of the first wind disk is in butt joint with the soil introducing port.
Optionally, the second air plate is horizontally arranged in the inner furnace body, or gradually decreases outwards along the radial direction to form a second guide inclined plane;
the outer edge of the second wind disk is in butt joint with the soil guide outlet.
Optionally, the third wind disk is annularly arranged between the outer wall of the inner furnace body and the inner wall of the outer furnace body and gradually decreases along the radial direction, the inner edge of the third wind disk is in butt joint with the soil guide outlet, and the outer edge of the third wind disk is in butt joint with the discharge outlet.
Above-mentioned a thermal desorption fluidized bed furnace for soil remediation, through arranging impeller and wind dish, makes the soil granule disperse through centrifugal force to make soil be in the boiling state and transfer heat rapidly through the hot-blast messenger soil of bottom, reach the effect of thermal desorption, simplified the structure, reduced the energy consumption, the reliability is higher.
Drawings
Fig. 1 is a schematic view of a thermal desorption fluidized bed furnace for soil remediation according to an embodiment of the present invention.
The reference numerals in the figures are illustrated as follows:
1. an outer furnace body; 2. an inner furnace body; 3. a feed inlet; 4. a soil introducing port; 5. a soil outlet; 6. a discharge port; 7. a cloth impeller; 8. a drive mechanism; 9. a drive shaft; 10. a protective sleeve; 11. a first wind plate; 12. A second wind plate; 13. and a third air plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic view of a thermal desorption boiling furnace for soil remediation according to an embodiment of the present invention.
The embodiment provides a thermal desorption fluidized bed furnace for soil restoration, a thermal desorption fluidized bed furnace for soil restoration includes outer furnace body 1 and interior furnace body 2 that the interval is nested, and each furnace body bottom all has hot-blast entry, and the top has hot-blast export, and wherein the hot-blast export of outer furnace body 1 still is as the feed inlet 3 that drops into pending soil, and soil introducing port 4 and soil export 5 have been seted up to the lateral wall of interior furnace body, and discharge gate 6 has been seted up to the lateral wall of outer furnace body 1. It can be understood that the shape and the distance between the outer furnace body 1 and the inner furnace body 2 can be set according to the actual process requirements, for example, the cross sections of the outer furnace body 1 and the inner furnace body 2 can be circular, oval or rectangular, and the like, and are arranged at intervals radially inside and outside.
In this embodiment, the thermal desorption boiling furnace for soil remediation further comprises a distribution impeller 7 located directly below the feed port 3 for distributing the soil to be treated from the feed port 3. It can be understood that the cloth impeller 7 drives the falling soil to be treated through rotation, and the soil to be treated is scattered in the inner furnace body 2, and meanwhile, the cloth impeller also has a certain shearing and crushing effect, so that the soil to be treated is heated more sufficiently, and the thermal desorption effect is better. Specifically, the cloth impeller 7 is not limited in structure, and only needs to achieve the effect of scattering the soil to be treated, for example, the cloth impeller 7 may be a closed impeller, a semi-open impeller, an open impeller, or the like.
In this embodiment, the thermal desorption boiling furnace for soil remediation further comprises an air disc with air penetration holes, the air disc is provided with a plurality of positions and is respectively fixed in the inner furnace body and between the outer wall of the inner furnace body and the inner wall of the outer furnace body 1, the interior of the thermal desorption boiling furnace is limited by the air disc to form a soil treatment channel, and the soil treatment channel is sequentially fed into and discharged from the inner furnace body from the feeding port 3 to the discharging port 6 through the soil introducing port 4 and the soil leading-out port 5. It can be understood that the air disk forms a soil treatment channel, so that soil to be treated enters and exits the inner furnace body from the feeding hole 3 through the soil introducing hole 4 and the soil leading-out hole 5 in sequence, is fully heated, and is subjected to thermal desorption until the thermal desorption is completed and reaches the discharging hole 6.
Above-mentioned a thermal desorption fluidized bed furnace for soil remediation, through arranging impeller and wind dish, makes the soil granule disperse through centrifugal force to make soil be in the boiling state and transfer heat rapidly through the hot-blast messenger soil of bottom, reach the effect of thermal desorption, simplified the structure, reduced the energy consumption, the reliability is higher.
In order to rotate the distribution impeller 7 to spread the soil to be treated, in other embodiments, the thermal desorption boiling furnace for soil remediation further comprises a driving mechanism 8 and a transmission shaft 9. It can be understood that the cloth impeller 7 is installed at the top of the inner furnace body, the driving mechanism 8 is arranged in the inner furnace body and is positioned at the bottom of the inner furnace body, the cloth impeller 7 is connected with the driving mechanism 8 through the transmission shaft 9, one end of the transmission shaft 9 is used as an input end to be connected with the driving mechanism 8, and the other end is used as an output end to extend upwards through the inner furnace body and is connected with the cloth impeller 7. Specifically, the driver drives the transmission shaft 9, and the distribution impeller 7 starts to rotate under the drive of the transmission shaft 9 to spread the soil to be treated. It will be appreciated that the drive mechanism 8 may be any type of drive device, such as an electric motor, etc., and only needs to achieve the effect of driving the cloth impeller 7 to rotate via the drive shaft 9.
In order to prevent the driving mechanism 8 from being damaged due to heating and over-high temperature, in a preferred embodiment, a protective cover 10 is further arranged in the inner furnace body, and the driving mechanism 8 and the transmission shaft 9 are arranged in the protective cover 10 and isolated from the soil treatment channel. It will be appreciated that the protective sleeve 10 may be formed from a thermally insulating material such as fiberglass, asbestos, rock wool, silicate, or the like.
The length and shape of the protective sleeve 10 can be set correspondingly according to the shape of the thermal desorption boiling furnace, and certainly to protect the cloth impeller 7, in a preferred embodiment, the top end of the protective sleeve 10 extends out of the inner furnace body, and the cloth impeller 7 is installed at the top end of the protective sleeve 10.
The hot air inlets at the bottoms of the outer furnace body 1 and the inner furnace body 2 can be of a straight-through open structure and are directly butted with a flue gas source, or the bottoms of the outer furnace body 1 and the inner furnace body 2 adopt a closed structure, the flue gas source is communicated to the insides of the furnace bodies in the lateral directions of the outer furnace body 1 and the inner furnace body 2 through pipelines, the driving mechanism 8 can also be arranged outside the thermal desorption boiling furnace, the heat-resisting requirement can be reduced, the service life is prolonged, and the bottom of the transmission shaft 9.
In order to ensure that the soil to be treated has sufficient reaction time and is fully heated to achieve a good thermal desorption effect, in a preferred embodiment, the feeding port 3, the soil introducing port 4, the soil leading-out port 5 and the discharging port 6 are sequentially arranged from high to low, so that the soil moves along the soil treatment channel under the action of gravity without being controlled by additional equipment. It can be understood that the soil to be treated enters from the feeding port 3, is scattered into the outer furnace body 1 through the distribution impeller 7 to be heated for thermal desorption, enters the inner furnace body 2 from the soil introducing port 4 through the soil treatment channel to be heated for the second time, returns to the outer furnace body 1 from the soil leading-out port 5, and leaves the thermal desorption fluidized bed furnace from the discharging port 6.
The specific positions and numbers of the soil inlet 4, the soil outlet 5 and the discharge port 6 are not strictly limited, but in order to ensure that the soil to be treated can pass through the complete thermal desorption treatment process along the soil treatment channel and leave the thermal desorption fluidized bed furnace from the discharge port 6, in a preferred embodiment, the soil inlet 4, the soil outlet 5 and the discharge port 6 are respectively arranged at intervals along the circumferential direction of the furnace body.
In other embodiments, the winddisks include a first winddisk 11, a second winddisk 12, and a third winddisk 13.
The first air disc 11 is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body 1 and is used for guiding soil to be treated from the feeding hole 3 to enter the inner furnace body 2 through the soil introducing hole 4;
the second air disc 12 is fixedly connected in the inner furnace body 2 and is used for guiding the soil to be treated from the soil inlet 4 to be discharged out of the inner furnace body 2 through the soil outlet 5;
the third air plate 13 is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body 1 and used for guiding the soil to be treated from the soil outlet 5 to be discharged out of the thermal desorption boiling furnace through the discharge hole 6.
In order to ensure that the soil to be treated can move along the soil treatment channel under the action of gravity, and accurately enter and exit the inner furnace body 2 and leave the thermal desorption boiling furnace, in a preferred embodiment, the first air disk 11 is annularly distributed between the outer wall of the inner furnace body and the inner wall of the outer furnace body 1 and gradually lowers inwards along the radial direction, and the inner edge of the first air disk 11 is butted with the soil introducing port 4;
the second air disk 12 is horizontally arranged in the inner furnace body, and the outer edge of the second air disk 12 is in butt joint with the soil outlet 5;
the third air disk 13 is annularly distributed between the outer wall of the inner furnace body and the inner wall of the outer furnace body 1 and gradually decreases outwards along the radial direction, the inner edge of the third air disk 13 is in butt joint with the soil outlet 5, and the outer edge of the third air disk 13 is in butt joint with the discharge hole 6.
In other embodiments, the second wind disk 12 is annularly arranged between the protective cover 10 and the inner wall of the inner furnace body 2, and gradually decreases radially outwards to form a guiding inclined plane, so that the soil to be treated can be smoothly discharged out of the inner furnace body 2 through the soil outlet 5 under the action of gravity.
Above-mentioned a thermal desorption fluidized bed furnace for soil remediation, through arranging impeller and wind dish, makes the soil granule disperse through centrifugal force to make soil be in the boiling state and transfer heat rapidly through the hot-blast messenger soil of bottom, reach the effect of thermal desorption, simplified the structure, reduced the energy consumption, the reliability is higher.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A thermal desorption fluidized bed furnace for soil remediation, a characterized in that, a thermal desorption fluidized bed furnace for soil remediation include:
the device comprises an outer furnace body and an inner furnace body which are nested at intervals, wherein the bottom of each furnace body is provided with a hot air inlet, the top of each furnace body is provided with a hot air outlet, the hot air outlet of the outer furnace body is also used as a feeding hole for feeding soil to be treated, the side wall of the inner furnace body is provided with a soil introducing port and a soil guiding port, and the side wall of the outer furnace body is provided with a discharging hole;
the distribution impeller is positioned right below the feeding hole and used for distributing the soil to be treated from the feeding hole;
the air plate is provided with a plurality of positions and is respectively fixed in the inner furnace body and between the outer wall of the inner furnace body and the inner wall of the outer furnace body, the inside of the thermal desorption boiling furnace is limited by the air plate to form a soil treatment channel, and the soil treatment channel is formed by sequentially passing through the soil introducing port and the soil leading-out port from the feeding port to the inner furnace body until reaching the discharging port.
2. The thermal desorption boiling furnace for soil remediation as claimed in claim 1, wherein the distribution impeller is mounted on the top of the inner furnace body, the thermal desorption boiling furnace further comprising:
the driving mechanism is arranged in the inner furnace body and is positioned at the bottom of the inner furnace body;
and one end of the transmission shaft is used as an input end and connected with the driving mechanism, and the other end of the transmission shaft is used as an output end and extends upwards through the inner furnace body and is connected with the distribution impeller.
3. The thermal desorption boiling furnace for soil remediation as claimed in claim 2, wherein a shield is further disposed in the inner furnace body, and the driving mechanism and the transmission shaft are disposed in the shield and isolated from the soil treatment passage.
4. The thermal desorption boiling furnace for soil remediation as claimed in claim 3, wherein the top end of the protective sleeve extends out of the inner furnace body, and the distribution impeller is mounted on the top end of the protective sleeve.
5. The thermal desorption boiling furnace for soil remediation as claimed in any one of claims 1 to 4, wherein the feed inlet, the soil introduction port, the soil discharge port and the discharge port are arranged in sequence from high to low.
6. The thermal desorption boiling furnace for soil remediation as claimed in any one of claims 1 to 4, wherein the soil inlet, the soil outlet and the discharge port are arranged in plurality at intervals along the circumferential direction of the furnace body.
7. The thermal desorption boiling furnace for soil remediation as claimed in any one of claims 1 to 4, wherein the wind disk comprises:
the first air disc is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body and used for guiding the soil to be treated from the feeding hole to enter the inner furnace body through the soil introducing port;
the second air disc is fixedly connected in the inner furnace body and used for guiding the soil to be treated from the soil introducing port to be discharged out of the inner furnace body through the soil outlet;
and the third air disc is fixedly connected between the outer wall of the inner furnace body and the inner wall of the outer furnace body and is used for guiding the soil to be treated from the soil guide outlet to be discharged out of the thermal desorption boiling furnace through the discharge port.
8. The thermal desorption boiling furnace for soil remediation as claimed in claim 7, wherein the first wind disk is annularly distributed between the outer wall of the inner furnace body and the inner wall of the outer furnace body and gradually decreases inwards in the radial direction, and the inner edge of the first wind disk is in butt joint with the soil introduction port.
9. The thermal desorption boiling furnace for soil remediation as claimed in claim 7, wherein the second air disk is horizontally arranged in the inner furnace body or gradually decreases outwards along a radial direction to form a second guide slope;
the outer edge of the second wind disk is in butt joint with the soil guide outlet.
10. The thermal desorption boiling furnace for soil remediation as claimed in claim 7, wherein the third wind disk is annularly arranged between the outer wall of the inner furnace body and the inner wall of the outer furnace body and gradually decreases outwards in the radial direction, the inner edge of the third wind disk is in butt joint with the soil outlet, and the outer edge of the third wind disk is in butt joint with the discharge hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201921764229.7U CN211330712U (en) | 2019-10-21 | 2019-10-21 | Thermal desorption fluidized bed furnace for soil remediation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921764229.7U CN211330712U (en) | 2019-10-21 | 2019-10-21 | Thermal desorption fluidized bed furnace for soil remediation |
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| CN211330712U true CN211330712U (en) | 2020-08-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916600A (en) * | 2021-03-04 | 2021-06-08 | 东南大学 | Vertical soil thermal desorption device of inside and outside heating and dead weight unloading |
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2019
- 2019-10-21 CN CN201921764229.7U patent/CN211330712U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112916600A (en) * | 2021-03-04 | 2021-06-08 | 东南大学 | Vertical soil thermal desorption device of inside and outside heating and dead weight unloading |
| CN112916600B (en) * | 2021-03-04 | 2022-06-07 | 东南大学 | Vertical soil thermal desorption device of inside and outside heating and dead weight unloading |
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