CN210023237U - Thermal desorption-solidification stabilization integrated treatment system - Google Patents
Thermal desorption-solidification stabilization integrated treatment system Download PDFInfo
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- CN210023237U CN210023237U CN201920707568.5U CN201920707568U CN210023237U CN 210023237 U CN210023237 U CN 210023237U CN 201920707568 U CN201920707568 U CN 201920707568U CN 210023237 U CN210023237 U CN 210023237U
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- rotary kiln
- thermal desorption
- kiln
- processing system
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Abstract
The utility model provides a thermal desorption-solidification stabilization integrated treatment system, which comprises a rotary kiln and an outer barrel, wherein the rotary kiln is transversely arranged and can be driven by at least one rotating motor to rotate; the head end of the rotary kiln is provided with a feed inlet for soil to enter, and the tail end of the rotary kiln is annularly provided with a plurality of inner kiln discharge outlets; the outer cylinder is arranged around the tail end of the rotary kiln, two ends of the outer cylinder are rotatably and hermetically connected with the outer peripheral side of the rotary kiln, so that a treatment space is formed between the outer cylinder and the rotary kiln, one end of the treatment space is a feeding end, the feeding end is connected with a discharge port of the rotary kiln, the other end of the treatment space is a discharge end, and the discharge end is provided with an outer discharge port; a plurality of stirring teeth are arranged on the outer wall of the rotary kiln within the length range corresponding to the treatment space. Because the rotary kiln and the outer barrel of the utility model adopt a ring sleeve structure, the occupied area can be obviously reduced, and the secondary pollution problem caused by the polluted soil in the multiple transportation process is avoided.
Description
Technical Field
The utility model relates to a thermal desorption and solidification stabilization integrated processing system.
Background
Aiming at the organic pollutant and heavy metal combined polluted soil, a thermal desorption technology and a solidification and stabilization technology are required to be adopted for combined remediation, but in this way, on one hand, the occupied area of equipment is large, and on the other hand, secondary pollution is easily generated in the soil transfer process.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a thermal desorption-integrative processing system of solidification stabilization reduces area to avoid polluting the secondary pollution problem that soil produced in the multiple transportation process.
In order to achieve the above object, the utility model adopts the following technical scheme:
a thermal desorption-solidification stabilization integrated processing system is characterized by comprising:
the rotary kiln is transversely arranged and can be driven by at least one rotary motor to rotate; the head end of the rotary kiln is provided with a feed inlet for soil to enter, and the tail end of the rotary kiln is annularly provided with a plurality of inner kiln discharge outlets;
the outer barrel is arranged around the tail end of the rotary kiln, a chemical feeding port is formed in the outer barrel, two ends of the outer barrel are rotatably and hermetically connected with the outer peripheral side of the rotary kiln, a treatment space is formed between the outer barrel and the rotary kiln, one end of the treatment space is a feeding end, the feeding end is connected with an inner kiln discharge port of the rotary kiln, the other end of the treatment space is a discharge end, and the discharge end is provided with an outer discharge port; a plurality of stirring teeth are arranged on the outer wall of the rotary kiln within the length range corresponding to the treatment space.
The thermal desorption-solidification stabilization integrated processing system comprises: the dosing port comprises a solid medicament dosing port and a medicament sprayer.
The thermal desorption-solidification stabilization integrated processing system comprises: still include the isolation cabin, the isolation cabin is sealed parcel at the interior kiln discharge gate department of the tail end of rotary kiln annularly, is equipped with the isolation discharge gate in the below of isolation cabin, is equipped with the air lock at the isolation discharge gate department.
The thermal desorption-solidification stabilization integrated processing system comprises: the discharge end is closer to the feed inlet of the rotary kiln than the feed end.
The thermal desorption-solidification stabilization integrated processing system comprises: and a burner is arranged inside or outside the rotary kiln.
The thermal desorption-solidification stabilization integrated processing system comprises: the rotary kiln is characterized in that a plurality of lifting plates are arranged on the inner wall of the rotary kiln, and the lifting plates are obliquely arranged.
The thermal desorption-solidification stabilization integrated processing system comprises: the tail end of the rotary kiln is provided with a kiln tail cover which is connected with an inner kiln tail gas treatment channel and is used for purifying the pollution gas generated in the rotary kiln.
The thermal desorption-solidification stabilization integrated processing system comprises: the outer barrel is further connected with a tail gas treatment extraction pipe, and the tail gas treatment extraction pipe is connected to a dust remover.
The thermal desorption-solidification stabilization integrated processing system comprises: the outer wall of the rotary kiln in the length range corresponding to the treatment space is also wrapped with heat insulation materials.
Because the rotary kiln and the outer barrel of the utility model adopt a ring sleeve structure, the occupied area can be obviously reduced, and the secondary pollution problem caused by the polluted soil in the multiple transportation process is avoided.
Drawings
Fig. 1 is a front view of the thermal desorption-solidification stabilization integrated treatment system provided by the present invention;
fig. 2 is a side view of the thermal desorption-solidification stabilization integrated processing system provided by the present invention;
fig. 3 is an enlarged schematic view of a coupling position of the rotary kiln and the outer tub.
Description of reference numerals: a bracket 1; a rotary kiln 2; a rotating electrical machine 3; a gas pipeline 4; a burner 5; a feed inlet 6; a conveyor 7; a material raising plate 8; a discharge hole 9 of the internal kiln; a kiln tail cover 10; an inner kiln tail gas treatment channel 11; an isolation capsule 12; isolating the discharge port 13; an air lock 14; an outer cylinder 15; a stirring tooth 16; a solid chemical feed port 17; a medicine sprayer 18; a tail gas treatment extraction pipe 19; an outer discharge port 20.
Detailed Description
Some specific embodiments of the invention will be described in detail below, by way of example and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale.
As shown in fig. 1, 2 and 3, the utility model provides a thermal desorption-solidification stabilization integrated processing system, which comprises:
a bracket 1;
the rotary kiln 2 is transversely arranged, can rotate by being erected on the bracket 1 through at least two rotating devices (such as bearings), and can rotate by being driven by at least one rotating motor 3; a burner 5 communicated with a gas pipeline 4 is arranged inside the head end of the rotary kiln 2, a feed inlet 6 is arranged above the head end, contaminated soil enters the rotary kiln 2 from the feed inlet 6 through a feed conveyor 7, a plurality of lifting blades 8 are arranged on the inner wall of the rotary kiln 2, so that the soil entering the rotary kiln 2 is uniformly stirred and moves towards the tail end in the rotation process of the rotary kiln 2, and in the moving process, the contaminated soil completes thermal desorption work under the action of high-temperature airflow generated by the burner 5; a plurality of inner kiln discharge holes 9 are formed in the ring side of the tail end of the rotary kiln 2, and the soil subjected to thermal desorption can be discharged out of the rotary kiln 2 through the inner kiln discharge holes 9; the tail end of the rotary kiln 2 is also provided with a kiln tail cover 10, and the kiln tail cover 10 is connected with an inner kiln tail gas treatment channel 11 which can purify the pollution gas generated in the rotary kiln 2;
the isolation cabin 12 is annularly and hermetically wrapped at the inner kiln discharge port 9 at the tail end of the rotary kiln 2, an isolation discharge port 13 is arranged below the isolation cabin 12, and an air lock 14 is arranged at the isolation discharge port 13 to prevent flue gas and pollutant gas generated in the rotary kiln 2 from leaking out of the rotary kiln 2 from the inner kiln discharge port 9;
an outer cylinder 15 fixed on the support 1 and arranged around the tail end of the rotary kiln 2 to wrap the isolation cabin 12, wherein the head end and the tail end of the outer cylinder 15 are rotatably and hermetically connected with the outer periphery of the rotary kiln 2 (typically, a scale type sealing structure can be adopted), so that a processing space is formed between the outer cylinder 15 and the rotary kiln 2, an isolation discharge port 13 of the isolation cabin 12 corresponds to the tail end of the outer cylinder 15 and is communicated with the processing space, soil subjected to thermal desorption processing in the rotary kiln 2 enters the isolation cabin 12 from the inner kiln discharge port 9 and then enters the processing space, a plurality of stirring teeth 16 are arranged on the outer wall of the rotary kiln 2 within the length range corresponding to the processing space, and the stirring teeth 16 stir the soil entering the processing space and enable the soil to move to the head end of the outer cylinder 15 along with the rotation of the rotary kiln 2, still be equipped with solid medicament charge door 17, medicament sprinkler 18 and tail gas on urceolus 15 and handle and take out tub 19, solid medicament and liquid medicament pass through respectively solid medicament charge door 17 and medicament sprinkler 18 get into the treatment space, carry out solidification stabilization with the soil in the treatment space and handle, gas such as dust, vapor that produce in the solidification stabilization handle by tail gas treatment takes out tub 19 and discharges to the dust remover so that carry out purification treatment, and the soil after solidification stabilization handle by outer discharge opening 20 that the head end below of urceolus 15 was established discharges urceolus 15.
In order to promote the soil to smoothly advance in the rotary kiln 2 and the treatment space, the material raising plate 8 is inclined, and the soil can advance in the rotary kiln 2 according to a set direction by matching with the rotation direction control of the rotary kiln 2.
In addition, sometimes it is necessary to cool the soil entering the treatment space, the chemical sprayer 18 sprays water into the treatment space, and in order to prevent heat loss in the rotary kiln 2 caused by thermal contact between the sprayed water and the rotary kiln 2, an insulating material (not shown) is further wrapped on the outer wall of the rotary kiln 2 within the length range corresponding to the treatment space, so as to reduce energy loss of the system.
A horizontal stirrer (not shown) may be further provided below the outlet port 20 to perform further stirring treatment if necessary.
When the utility model is used, the burner 5 is firstly started, the rotary kiln 2 is preheated, then the polluted soil after pretreatment is sent into the rotary kiln 2 by the feeding conveyor 7, the heated area of the soil is increased by the action of the lifting blade 8, the soil is fully heated, and simultaneously the soil is lifted to move towards the discharge hole 9 of the inner kiln; soil enters the isolation cabin 12 after thermal desorption treatment and then enters the treatment space, the stirring teeth 16 are installed on the outer side of the rotary kiln 2, when the rotary kiln 2 is started, the stirring teeth 16 also rotate, the soil is loosened under the action of the stirring teeth 16, meanwhile, the medicament sprayer 18 is started to spray medicaments (the medicament sprayer 18 can also spray water liquid according to needs to reduce the temperature of the soil after thermal desorption treatment), solid medicaments can be added from the solid medicament feed inlet 6 above, and the soil is solidified and stabilized in the loosening process.
Because the rotary kiln 2 and the outer cylinder 15 of the utility model adopt a ring sleeve structure, the occupied area can be obviously reduced, and the secondary pollution problem caused by the polluted soil in the multiple transportation process is avoided.
Use the utility model provides an integrative processing system of thermal desorption-solidification stabilization can handle organic matter and heavy metal combined pollution soil, also can handle organic matter pollution soil alone and need thermal desorption technique and chemical oxidation technique etc. soil through the repairing technology joint processing of adding the medicament, for example when handling VOCs, SVOCs combined pollution soil, can take low temperature thermal desorption technique to get rid of and carry out chemical oxidation after the VOCs and handle SVOCs to reduce the consumption of the energy.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A thermal desorption-solidification stabilization integrated processing system is characterized by comprising:
the rotary kiln is transversely arranged and can be driven by at least one rotary motor to rotate; the head end of the rotary kiln is provided with a feed inlet for soil to enter, and the tail end of the rotary kiln is annularly provided with a plurality of inner kiln discharge outlets;
the outer barrel is arranged around the tail end of the rotary kiln, a chemical feeding port is formed in the outer barrel, two ends of the outer barrel are rotatably and hermetically connected with the outer peripheral side of the rotary kiln, a treatment space is formed between the outer barrel and the rotary kiln, one end of the treatment space is a feeding end, the feeding end is connected with an inner kiln discharge port of the rotary kiln, the other end of the treatment space is a discharge end, and the discharge end is provided with an outer discharge port; a plurality of stirring teeth are arranged on the outer wall of the rotary kiln within the length range corresponding to the treatment space.
2. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the dosing port comprises a solid medicament dosing port and a medicament sprayer.
3. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: still include the isolation cabin, the isolation cabin is sealed parcel at the interior kiln discharge gate department of the tail end of rotary kiln annularly, is equipped with the isolation discharge gate in the below of isolation cabin, is equipped with the air lock at the isolation discharge gate department.
4. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the discharge end is closer to the feed inlet of the rotary kiln than the feed end.
5. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: and a burner is arranged inside or outside the rotary kiln.
6. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the rotary kiln is characterized in that a plurality of lifting plates are arranged on the inner wall of the rotary kiln, and the lifting plates are obliquely arranged.
7. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the tail end of the rotary kiln is provided with a kiln tail cover which is connected with an inner kiln tail gas treatment channel and is used for purifying the pollution gas generated in the rotary kiln.
8. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the outer barrel is further connected with a tail gas treatment extraction pipe, and the tail gas treatment extraction pipe is connected to a dust remover.
9. The thermal desorption-solidification stabilization integrated processing system according to claim 1, wherein: the outer wall of the rotary kiln in the length range corresponding to the treatment space is also wrapped with heat insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707568.5U CN210023237U (en) | 2019-05-16 | 2019-05-16 | Thermal desorption-solidification stabilization integrated treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707568.5U CN210023237U (en) | 2019-05-16 | 2019-05-16 | Thermal desorption-solidification stabilization integrated treatment system |
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| Publication Number | Publication Date |
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| CN210023237U true CN210023237U (en) | 2020-02-07 |
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| CN201920707568.5U Active CN210023237U (en) | 2019-05-16 | 2019-05-16 | Thermal desorption-solidification stabilization integrated treatment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090857A (en) * | 2019-05-16 | 2019-08-06 | 中科鼎实环境工程有限公司 | Thermal desorption-solidification and stabilization one processing system |
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2019
- 2019-05-16 CN CN201920707568.5U patent/CN210023237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110090857A (en) * | 2019-05-16 | 2019-08-06 | 中科鼎实环境工程有限公司 | Thermal desorption-solidification and stabilization one processing system |
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Address after: No. 46, Keji Road, economic development zone, Miyun District, Beijing 101500 Patentee after: ZHONGKE DINGSHI ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: 100028, No. 3, building 6, North Fourth Ring Road East, Sun Palace, Chaoyang District, Beijing Patentee before: ZHONGKE DINGSHI ENVIRONMENTAL ENGINEERING Co.,Ltd. |