CN209849537U - Rotary indirect thermal desorption device and system - Google Patents
Rotary indirect thermal desorption device and system Download PDFInfo
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- CN209849537U CN209849537U CN201920224738.4U CN201920224738U CN209849537U CN 209849537 U CN209849537 U CN 209849537U CN 201920224738 U CN201920224738 U CN 201920224738U CN 209849537 U CN209849537 U CN 209849537U
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- rotary
- thermal desorption
- indirect thermal
- kiln
- rotary barrel
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- 238000003795 desorption Methods 0.000 title claims abstract description 40
- 239000000463 material Substances 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000008859 change Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 9
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 16
- 239000003344 environmental pollutant Substances 0.000 description 6
- 231100000719 pollutant Toxicity 0.000 description 6
- 239000002957 persistent organic pollutant Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- -1 phthalic acid ester Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 231100000378 teratogenic Toxicity 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
Abstract
The utility model discloses an indirect thermal desorption device of rotation and system, including the kiln head, the kiln tail, the rotary barrel body, the burning chamber, the feed inlet, the discharge gate, the chimney, the kiln head, the rotary barrel body, the kiln tail connects gradually, and the burning chamber cover is established on the rotary barrel body, and the chimney is established on the burning chamber, and the feed inlet is established on the kiln head, and the discharge gate is established on the kiln tail, still is equipped with the gas vent on the kiln head, and the bottom in burning chamber is equipped with a plurality of combustors, and the rotary barrel body carries out the subregion according to material on-the-way attribute change, and a plurality of flight on the rotary barrel inner wall is different according to the subregion, and flight and rotary barrel body inner wall welding angle are also different. A system containing the rotary indirect thermal desorption device is also disclosed. Has the advantages that: the heating temperature is high, the thermal desorption effect is good, the combustion of the non-condensable gas releases heat, and the energy is recycled.
Description
Technical Field
The utility model relates to a soil remediation field, concretely relates to indirect thermal desorption device of rotation and system.
Background
Due to the combustion of fossil fuels, petroleum leakage, the stacking of industrial sewage and sludge agricultural and industrial and agricultural solid wastes and the wide use of pesticides, various types of organic pollutants directly or indirectly enter the soil environment and are adsorbed by soil particles to remain in the soil for a long time. The organic matters of the polluted soil are divided into natural organic matters and artificially synthesized organic matters, usually the latter, such as phthalic acid ester, polycyclic aromatic hydrocarbon, organic chlorine, organic phosphorus pesticide and the like, and various organic matters are carcinogenic, teratogenic or mutagenic substances, so that the organic matters can not only reduce the yield of crops and even stop the yield of the crops, but also can enter a food chain through animals and plants to bring serious influence on the survival and health of the crops, and the restoration technology of the organic polluted soil is developed to become a hot point of the current domestic and foreign environmental protection research.
Traditional screw propulsion type indirect thermal desorption equipment, the handling capacity is little, heating temperature is low, the repair effect is unsatisfactory, therefore needs to develop a device for realizing the high-efficient restoration of organic contaminated soil urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's is not enough, provides an indirect thermal desorption device of rotation and system, is suitable for the material that the liquid content is lower, the looseness is higher, and the handling capacity is big, heating temperature is high, repair effect is good, realizes the high-efficient restoration of organic contaminated soil to satisfy the demand of energy retrieval and utilization.
The purpose of the utility model is achieved through the following technical measures: the utility model provides an indirect thermal desorption device of rotation, includes the kiln head, the kiln tail, and the rotary barrel body burns the chamber, and the feed inlet, the discharge gate, the chimney, the kiln head, the rotary barrel body, the kiln tail connects gradually, the burning chamber cover is established on the rotary barrel body, the chimney is established on the burning chamber, the feed inlet is established on the kiln head, the discharge gate is established on the kiln tail, still be equipped with the gas vent on the kiln head, the bottom in burning chamber is equipped with a plurality of combustors, the rotary barrel body carries out the subregion according to material on-the-way attribute change, and a plurality of flight on the rotary barrel inner wall is different according to the subregion, and flight and rotary barrel body inner wall welding angle are also different.
Furthermore, the kiln head, the rotary cylinder body and the kiln tail are connected to form an included angle with the horizontal plane, the included angle is 1-3 degrees, and the feeding hole is higher than the discharging hole.
Furthermore, the rotary cylinder is sequentially divided into a temperature rising section, an evaporation section and a dry material section from the kiln head to the kiln tail according to the on-way property change of the materials.
Furthermore, the shovelling plate is a metal bending plate, the height of the shovelling plate is 20-30 cm, and a V-shaped notch is formed in the middle of the upper end of the shovelling plate.
Furthermore, in the temperature rising section and the dry material section, the angle between the root of the shovelling plate and the tangent line in the rotating direction of the inner wall of the rotary cylinder body is 120-150 degrees.
Furthermore, in the evaporation section, the angle between the root of the shovelling plate and the tangent line in the rotating direction of the inner wall of the rotary cylinder body is 60-90 degrees.
Furthermore, a partition plate used for prolonging the smoke stroke is arranged at the front end of the combustion cavity in the axial direction.
A rotary indirect thermal desorption system comprises a rotary indirect thermal desorption device, a hopper, an air lock, a discharge jacket screw, a ceramic filter, a tube type condenser, an oil-water separator, a buffer oil tank, a buffer water tank, a demisting device, a high pressure fan, a flame arrester and a burner, the hopper and the airlock are connected in sequence and then connected with a feed inlet of the rotary indirect thermal desorption device, an exhaust port of the rotary indirect thermal desorption device is connected with the ceramic filter, the tubular condenser, the demisting device, the high-pressure fan, the flame arrester and the burner in sequence, the burner is arranged at the bottom of the front end of a combustion chamber of the rotary indirect thermal desorption device, the inlet of the oil-water separator is connected with the tube-still condenser, the outlet of the oil-water separator is respectively connected with the buffer oil tank and the buffer water tank, and the discharge port of the rotary indirect thermal desorption device is spirally connected with the discharge jacket.
Furthermore, the defogging device is a three-level defogging device, which is respectively a first-level defogger, a second-level defogger and a third-level defogger, wherein a plurality of baffle plates are arranged in the first-level defogger, a plurality of corrugated plates are arranged in the second-level defogger, and a fiber layer is arranged in the third-level defogger.
Compared with the prior art, the beneficial effects of the utility model are that: 1. the heating temperature and uniformity of the plurality of burners which are horizontally and uniformly arranged are ensured; 2. the shoveling plates designed in a segmented manner realize effective turning of the polluted soil and rapid diffusion and release of pollutant steam; 3. the three-stage demisting ensures the combustion stability and environmental protection of the non-condensable gas; 4. the configuration of the burner fully burns the non-condensable gas and releases heat, thereby realizing the recycling of energy.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of a rotary indirect thermal desorption device.
Fig. 2 is a schematic structural view of a shoveling plate.
FIG. 3 is a schematic view of the angle of the weld between the shovelling plates in the temperature rising section and the drying material section.
FIG. 4 is a schematic view of the angle of welding of the shovelling plates in the evaporation zone
FIG. 5 is a schematic view showing the distribution of shovelling plates on the inner wall of the rotary cylinder.
Fig. 6 is a schematic structural diagram of a rotary indirect thermal desorption system.
FIG. 7 is a schematic view of a burner.
The system comprises a kiln head 1, a kiln tail 2, a rotary cylinder 3, a combustion chamber 4, a chimney 5, a partition plate 6, a feed inlet 7, a discharge outlet 8, an exhaust outlet 9, a combustor 10, a shovelling plate 20, a root 21, a gap 22, a burner 30, a noncondensable gas channel 31, an air channel 32, a hopper 41, an air lock 42, a discharge jacket spiral 43, a ceramic filter 44, a shell and tube condenser 45, an oil-water separator 46, a buffer oil tank 47, a buffer water tank 48, a first-stage demister 49, a second-stage demister 50, a third-stage demister 51, a high-pressure fan 52 and a flame arrester 53.
Detailed Description
As shown in figure 1, a rotary indirect thermal desorption device comprises a kiln head 1, a kiln tail 2, a rotary cylinder 3 and a fixed combustion chamber 4, wherein the kiln head 1 is provided with a feed inlet 7 and an exhaust outlet 9, the kiln tail 2 is provided with a discharge outlet 8, the bottom of the combustion chamber 4 is provided with a plurality of burners 10, a chimney 5 is arranged at the top of the front end of the combustion chamber 4, in the initial starting stage of the device, high-temperature flue gas and heat are provided by the plurality of burners 10 horizontally and uniformly distributed at the bottom of the combustion chamber 4, organic contaminated soil enters the kiln head 1 and the rotary cylinder 3 through the feed inlet 7, a straight line formed by connecting the kiln head 1, the rotary cylinder 3 and the kiln tail 2 forms an included angle with a horizontal plane, the angle is 1-3 degrees, the feed inlet 7 is higher than the discharge outlet 8, the condition that the soil in the cylinder has a certain axial flow velocity when the rotary cylinder 3 rotates around a central axis is ensured, and the, finally discharged from a discharge port 8; the front section of the combustion chamber 4 is provided with a partition plate 6 for prolonging the smoke stroke in the axial direction, so that the smoke channel around the rotary cylinder 3 is separated, and the smoke of the front-end combustor 10 is prevented from being directly discharged from the chimney 5 upwards to form a short circuit to influence the heat exchange efficiency.
The inner wall of the rotary cylinder 3 is welded with a plurality of shovelling plates 20, the shovelling plates 20 are metal bent plates, the height of each shovelling plate 20 is 20-30 cm, the middle of the upper end of each shovelling plate 20 is provided with a V-shaped notch 22, the root 21 of each shovelling plate 20 is welded with the inner wall of the rotary cylinder 3, and the specific structure of each shovelling plate 20 is shown in fig. 2. And the partition design is carried out according to the variation of the material along the path attribute, and the specific scheme is as follows: to material intensification and thermal desorption process in the rotary barrel 3, equally divide rotary barrel 3 into temperature rise section, evaporation zone and drier section along the axial: the temperature of the material in the temperature rising section rises from the ambient temperature to the temperature of the superheated steam of about 130 ℃, and the gasification amount and the heat absorption strength of the material in the temperature rising section are small; a large amount of water and a part of organic pollutants in the evaporation section are evaporated, the gasification amount and the heat absorption intensity in the stage are the maximum, and the overall temperature rise rate of the material is reduced; and (3) continuously heating the materials in the dry material section to the final treatment temperature (400-500 ℃), completely evaporating the residual organic pollutants in the stage, minimizing the gasification amount and the heat absorption strength, and accelerating the overall heating rate. Therefore, aiming at the characteristic of the temperature rise section, the tangential included angle between the root 21 of the shovelling plate and the wall of the rotary cylinder 3 is an obtuse angle, which is usually 120-150 degrees, as shown in fig. 3; aiming at the characteristics of the evaporation section, the tangential included angle between the root 21 of the shovelling plate and the wall of the rotary cylinder 3 is an acute angle, which is usually 60-90 degrees, as shown in figure 4; in the dry material section and the temperature rising section, the welding angles of the shoveling plates 20 are the same, and the welding angles of the shoveling plates in the three sections are calculated in the clockwise direction. The number of the shovelling plates 20 in each of the heating section, the evaporation section and the drying section is 6, and the 6 shovelling plates 20 are uniformly distributed in the circumferential direction of the inner wall of the rotary cylinder 3, as shown in fig. 5. The shovelling plate 20 in the temperature rising section is beneficial to increasing the paving area of the material and ensuring a certain turning degree; the shovelling plates 20 in the evaporation section are beneficial to improving the material turning degree and forming a material curtain, so that the steam in the particle layer can be promoted to quickly escape; the shovelling plate 20 in the dry material section can promote a small amount of organic pollutant steam remained in the material to diffuse out on one hand, and can avoid excessive dust raising on the other hand.
A rotary indirect thermal desorption system comprises a rotary indirect thermal desorption device, a hopper 41, an air lock 42, a discharge jacket spiral 43, a ceramic filter 44, a tubular condenser 45, an oil-water separator 46, a buffer oil tank 47, a buffer water tank 48, a primary demister 49, a secondary demister 50, a tertiary demister 51, a high-pressure fan 52, a flame arrester 53 and the like, and is shown in figure 6. The specific implementation mode is as follows: organic contaminated soil enters a rotary indirect thermal desorption device from a hopper 41 through an air lock 42, the soil which finishes the thermal desorption process falls into a discharge jacket spiral 43, and cooling water is introduced into an outer jacket of the discharge jacket spiral 43 to cool the high-temperature soil; after the pollutant vapor released by the organic polluted soil in the thermal desorption process is discharged from the rotary indirect thermal desorption device, the organic polluted soil firstly passes through the ceramic filter 44, and a plurality of ceramic fiber tubes are arranged in the ceramic filter 44, so that dust particles in the pollutant vapor can be effectively filtered; then, the pollutant vapor enters a tube type condenser 45, cooling water is introduced into the shell pass of the tube type condenser 45, and the pollutant vapor is indirectly condensed, so that the pollutant vapor is converted into condensate and non-condensable gas; the condensate flows into an oil-water separator 46 for settlement separation of water and oil, the upper layer floating oil is connected into a cache oil tank 47, and the bottom layer water is connected into a cache water tank 48; the primarily obtained non-condensable gas contains more water mist and oil mist, and is sequentially filtered by a first-stage demister 49, a second-stage demister 50 and a third-stage demister 51, wherein a plurality of baffle plates are arranged in the first-stage demister 49, a plurality of corrugated plates are arranged in the second-stage demister 50, a fiber layer is arranged in the third-stage demister 51, and the three-stage demisting ensures the combustion stability and environmental protection of the non-condensable gas; the noncondensable gas after the tertiary defogging passes through the spark arrester 53 behind high pressure positive blower 52, finally inserts the noncondensable gas nozzle 30 of establishing on the indirect thermal desorption device of rotation, fully burns exothermic, realizes the recycle of the energy. The non-condensable gas burner 30 is of a single sleeve type burner structure and comprises a non-condensable gas channel 31 and an air channel 32, as shown in fig. 7. The non-condensable gas burner 30 is also required to be provided with an ignition device, a combustion fan, a control module and the like, so that the full utilization of non-condensable gas energy is realized.
Claims (9)
1. The utility model provides an indirect thermal desorption device of rotation, includes the kiln head, the kiln tail, and the rotary barrel body, the burning chamber, the feed inlet, the discharge gate, the chimney, the kiln head, the rotary barrel body, the kiln tail connects gradually, the burning chamber cover is established on the rotary barrel body, the chimney is established on the burning chamber, the feed inlet is established on the kiln head, the discharge gate is established on the kiln tail, its characterized in that, still be equipped with the gas vent on the kiln head, the bottom in burning chamber is equipped with a plurality of combustors, the rotary barrel body carries out the subregion according to material on-the-way attribute change, and a plurality of shoveling plate on the rotary barrel inner wall is different according to the subregion, and shoveling plate and rotary barrel inner wall welding angle are also different.
2. Rotary indirect thermal desorption apparatus according to claim 1, wherein: the kiln head, the rotary cylinder body and the kiln tail are connected to form an included angle with the horizontal plane, the included angle is 1-3 degrees, and the feeding hole is higher than the discharging hole.
3. Rotary indirect thermal desorption apparatus according to claim 1, wherein: the rotary cylinder is sequentially divided into a temperature rising section, an evaporation section and a dry material section from the kiln head to the kiln tail according to the on-way property change of the materials.
4. Rotary indirect thermal desorption apparatus according to claim 3, wherein: the shoveling plate is a metal bending plate, the height of the shoveling plate is 20-30 cm, and a V-shaped notch is formed in the middle of the upper end of the shoveling plate.
5. Rotary indirect thermal desorption apparatus according to claim 4, wherein: in the temperature rising section and the drying section, the angle between the root of the shoveling plate and the tangent line in the rotating direction of the inner wall of the rotary cylinder body is 120-150 degrees.
6. Rotary indirect thermal desorption apparatus according to claim 4, wherein: in the evaporation section, the angle between the root of the shoveling plate and the tangent line in the rotating direction of the inner wall of the rotary cylinder body is 60-90 degrees.
7. Rotary indirect thermal desorption apparatus according to claim 1, wherein: and a partition plate for prolonging the stroke of the flue gas is arranged at the front end of the combustion cavity in the axial direction.
8. The utility model provides an indirect thermal desorption system of rotation which characterized in that: comprises the rotary indirect thermal desorption device as claimed in any one of claims 1 to 7, a hopper, an air lock, a discharge jacket screw, a ceramic filter, a tubular condenser, an oil-water separator, a buffer oil tank, a buffer water tank, a demisting device, a high-pressure fan, a flame arrester and a burner, the hopper and the airlock are connected in sequence and then connected with a feed inlet of the rotary indirect thermal desorption device, an exhaust port of the rotary indirect thermal desorption device is connected with the ceramic filter, the tubular condenser, the demisting device, the high-pressure fan, the flame arrester and the burner in sequence, the burner is arranged at the bottom of the front end of a combustion chamber of the rotary indirect thermal desorption device, the inlet of the oil-water separator is connected with the tube-still condenser, the outlet of the oil-water separator is respectively connected with the buffer oil tank and the buffer water tank, and the discharge port of the rotary indirect thermal desorption device is spirally connected with the discharge jacket.
9. Rotary indirect thermal desorption system according to claim 8, wherein: the demisting device is a three-stage demisting device, and is respectively a first-stage demister, a second-stage demister and a third-stage demister, wherein a plurality of baffle plates are arranged in the first-stage demister, a plurality of corrugated plates are arranged in the second-stage demister, and a fiber layer is arranged in the third-stage demister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920224738.4U CN209849537U (en) | 2019-02-22 | 2019-02-22 | Rotary indirect thermal desorption device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920224738.4U CN209849537U (en) | 2019-02-22 | 2019-02-22 | Rotary indirect thermal desorption device and system |
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| Publication Number | Publication Date |
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| CN209849537U true CN209849537U (en) | 2019-12-27 |
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| CN201920224738.4U Active CN209849537U (en) | 2019-02-22 | 2019-02-22 | Rotary indirect thermal desorption device and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692869A (en) * | 2019-02-22 | 2019-04-30 | 杰瑞环保科技有限公司 | The rotary indirect thermal desorption device of one kind and system |
-
2019
- 2019-02-22 CN CN201920224738.4U patent/CN209849537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109692869A (en) * | 2019-02-22 | 2019-04-30 | 杰瑞环保科技有限公司 | The rotary indirect thermal desorption device of one kind and system |
| WO2020168875A1 (en) * | 2019-02-22 | 2020-08-27 | 杰瑞环保科技有限公司 | Rotary indirect thermal desorption device and system |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231121 Address after: Room 301 and 302, Building 2, No. 9, Section 4, Renmin South Road, Wuhou District, Chengdu City, Sichuan Province, 610042 Patentee after: Jerry Environmental Governance Co.,Ltd. Address before: 264003 No. 9 Jerry Road, Laishan District, Shandong, Yantai Patentee before: JEREH ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |