CN205587425U - Soil thermal desorption prosthetic devices - Google Patents
Soil thermal desorption prosthetic devices Download PDFInfo
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- CN205587425U CN205587425U CN201620237574.5U CN201620237574U CN205587425U CN 205587425 U CN205587425 U CN 205587425U CN 201620237574 U CN201620237574 U CN 201620237574U CN 205587425 U CN205587425 U CN 205587425U
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- cartridge heater
- cylinder
- soil
- main shaft
- thermal desorption
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Abstract
The utility model relates to a soil processing technique field discloses a soil thermal desorption prosthetic devices, which comprises a bracket, establish the horizontally cartridge heater on the support, the left end upside of cartridge heater is equipped with feedstock channel, the right -hand member downside of cartridge heater is equipped with discharging channel, the outside of cartridge heater is equipped with the solar energy collection pipe, one side of support is equipped with the solar energy reflector panel, be equipped with the main shaft in the cartridge heater, the surface of main shaft is equipped with spiral belt, be equipped with driving spindle pivoted motor on the support, the left end upside of cartridge heater is equipped with the intake pipe, the right -hand member upside of cartridge heater is equipped with the blast pipe, be equipped with the exhaust fan on the blast pipe, the inboard of cartridge heater is equipped with the rotary drum, form annular gap between rotary drum and the cartridge heater, be equipped with a plurality of connecting rods between rotary drum inside and the main shaft. The utility model discloses well equipment utilization solar heating, the energy saving reduces soil thermal desorption cost.
Description
Technical field
This utility model relates to soil remediation processing technology field, particularly relates to a kind of Soil Thermal desorption and repairs dress
Put.
Background technology
China has a large amount of soil to be subject to the dirt of the organic pollutions such as benzene,toluene,xylene, ethylbenzene and TPH
Dye, along with the public is to organic contamination substance environment and the progressively understanding of health hazard, exigence economy and have
Efficacious prescriptions method processes these toxicants.The recovery technique of main organic pollution contaminated soil have biological restoration,
Chemical redemption, peripheral doses etc., comparatively, peripheral doses or chemical redemption have the widely suitability,
It is particularly well-suited to high concentration, multicomponent organic contamination place.At numerous peripheral doses or chemical remediation technology
In, thermal desorption is well recognized as processing the mature and reliable technology of organic material contaminated soil.
Thermal desorption recovery technique is through directly heating or indirectly heating, and contaminated soil is heated to enough temperature
Degree so that it is the process that contained organic pollution is volatilized or separates.Thermal desorption is from a phase by pollutant
It is converted into the physical separating process of another phase, can by the temperature and residence time of material controlling thermal desorption system
Selectively to make target contaminant volatilize.Directly pyrolysis device (CN101712042A) uses directly
Mode of heating carries out thermal desorption, but heat source gas is mutually mixed with the dusty gas volatilized, after increasing
The processing cost of continuous tail gas, and system energy consumption is high and heat utilization efficiency is low.The most how to reduce thermal desorption equipment
Operation energy consumption, energy-saving and emission-reduction are current thermal desorption recovery technique problem demanding prompt solutions.
Summary of the invention
Thermal desorption equipment operation energy consumption of the prior art is big, soil pollution is hot de-in order to overcome for this utility model
The deficiency that attached cost is high, it is provided that a kind of Soil Thermal that can reduce energy consumption, greatly reduction Soil Thermal desorption cost
Desorption prosthetic device.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of Soil Thermal desorption prosthetic device, including support, the cartridge heater of level that is located on support, described
It is provided with feeding-passage on the upside of the left end of cartridge heater, on the downside of the right-hand member of cartridge heater, is provided with tapping channel, described heating
The outside of cylinder is provided with solar energy heat collection pipe, and the side of described support is provided with solar energy reflector, described heating
Being provided with main shaft in Tong, the surface of described main shaft is provided with hurricane band, and described support is provided with drive shaft and turns
Dynamic motor, is provided with air inlet pipe, the row of being provided with on the upside of the right-hand member of described cartridge heater on the upside of the left end of described cartridge heater
Trachea, described exhaustor is provided with exhaust blower, and the inner side of described cartridge heater is provided with rotating cylinder, described rotating cylinder with
Form annular gap between cartridge heater, between described rotating cylinder inside and main shaft, be provided with some connecting rods.
Contaminated soil before desorption through natural drying pretreatment so that the water content in soil be reduced to symbol
Closing desorption requirement, pretreated soil enters in cartridge heater from feeding-passage, at main shaft, the work of hurricane band
Under with, soil moves to right-hand member from the left end of cartridge heater, and solar irradiation assembled by the solar energy reflector on support
Being mapped on solar energy heat collection pipe, thus heat cartridge heater, the heat on cartridge heater passes to rotating cylinder,
Rotating cylinder rotates together along with main shaft, and rotating cylinder is heated evenly, can be equal to the soil at each position in cartridge heater circumference
Even heating, so that the harmful substance such as benzene,toluene,xylene, ethylbenzene volatilizes from soil in soil
Form gaseous state, exhaust blower air draft, the toxic gas in cartridge heater is drained, finally arrange at tapping channel
Harmful toxic matter in the soil gone out substantially reduces, and the soil after thermal desorption processes may be used for gardens, plants vegetables,
This structure uses solar energy can heat soil, saves the energy, reduces Soil Thermal desorption cost；When outward
The when that boundary not having the sun, it is also possible to be directly passed through high temperature air at air inlet pipe and soil is heated, logical
Strong by property.
As preferably, described solar energy heat collection pipe includes outer glass pipe, inner glass tube, described outer glass
Manage the two ends with inner glass tube to be tightly connected, between outer glass pipe and inner glass tube, form an annular closed
Vacuum chamber, the outer wall of described inner glass tube is provided with heat absorbing coating.
As preferably, the lateral surface of described rotating cylinder is provided with some axially distributed heat transmission fins, described turn
The inwall of cylinder is provided with some shifting blocks for stirring soil, and the cross section of shifting block is V-shaped.Owing to solar energy is anti-
Tabula rasa is typically only capable to heat solar energy heat collection pipe side that (solar energy heat collection pipe opposite side passes through sunlight
Irradiate heating), thus it is uneven to cause cartridge heater outer ring to be heated, the temperature in annular gap is also uniform, this knot
By the rotation of rotating cylinder in structure so that the air flowing in annular gap, homogeneous temperature, thus in circumference
The soil heating at each position, heat transmission fin improves heat transfer efficiency；For the ease of soil by thermal desorption, generally
In the case of soil in cartridge heater only account for the half of cartridge heater intracavity space, soil under gravity, greatly
Part soil all concentrates on the downside of main shaft, is unfavorable for heating, and by drum rotation in this structure, shifting block is stirred
Soil, beneficially soil are heated, and simultaneously translating into upside on the soil on the downside of main shaft and scattering, improve greatly
The soil efficiency of heating surface.
As preferably, being provided with air flue in described main shaft, connecting tube and master are passed through in the outlet side of described exhaust blower
The right-hand member connection of axle, connecting tube is provided with swivel joint with the junction of main shaft.The air that exhaust blower is discharged carries
Having a lot of heat, directly emit waste heat energy, in this structure, the high temperature poison that exhaust blower is discharged is again
Return to, in the air flue of main shaft, from the center of cartridge heater, soil be heated, improve heat utilization efficiency, improve soil
Earth thermal desorption efficiency.
As preferably, described support is positioned on the upside of the left end of cartridge heater the cylinder that preheats of the level that is provided with, institute
State to preheat and connect with feeding-passage on the downside of the left end of cylinder, described in preheat and be provided with feed hopper on the upside of the right-hand member of cylinder,
Described preheat cylinder in be provided with feeding packing auger, by Tong Bus wheel, synchronization between described feeding packing auger and main shaft
Band connects, and the rotation direction of described feeding packing auger is oppositely oriented with hurricane band；The center that is provided with in feeding packing auger axle leads to
Hole, is connected by return duct between the left end of described main shaft and the left end of feeding packing auger axle, described return duct
Two ends are equipped with swivel joint, and the right-hand member of described feeding packing auger axle is provided with offgas duct.During thermal desorption, need handle
Soil is heated to more than 150 DEG C just to make harmful toxic matter evaporate from soil, and add from feeding-passage
Soil is normal temperature soils, and soil rises to 150 DEG C from room temperature needs the longer time, and normal temperature soils is direct
Can quickly reduce the temperature in cartridge heater in entering cartridge heater, therefore the desorption of the Soil Thermal in cartridge heater efficiency is low,
In this structure, arrange and preheat cylinder, first normal temperature soils is preheated, reduce the soil moisture and desorption temperature
The temperature difference, improves Soil Thermal desorption efficiency；And preheating is to utilize the toxic gas discharged from main shaft left end
Amount of residual heat, the exhaust temperature finally discharged at offgas duct is the most more pacified close to room temperature, tail gas subsequent treatment
Entirely, conveniently.
As preferably, described feeding packing auger axle is provided with some blades；The outer sheath preheating cylinder is provided with suction
Hot muff.Blade can shred the block soil preheated in cylinder further so that enters in cartridge heater
Soil particle is uniform, and thermal desorption is effective, and blade self has heat-conducting effect simultaneously, after blade inserts soil
Heat on feeding packing auger axle can be passed to soil.
As preferably, on the downside of the right-hand member of described support, it is provided with the post processing cylinder of level, described post processing cylinder
Connect with tapping channel on the upside of right-hand member, on the downside of the left end of described post processing cylinder, be provided with discharging channel, post processing cylinder
Inside being provided with discharging auger, the right-hand member of discharging screw-conveyer-shaft is connected with the right-hand member of main shaft by synchronization wheel, Timing Belt；
The upside of described post processing cylinder is provided with dividing plate, surrounds liquid storage cylinder between described dividing plate and post processing cylinder, described every
Plate is provided with some outages, and described frame bottom is provided with water tank, passes through water between described water tank and liquid storage cylinder
Pipe connects, and water pipe is provided with water pump, is provided with fertilizer solution in water tank.Entered the soil after cartridge heater thermal desorption
Be dried very much, temperature is high, soil is the barrenst, and this soil is through post processing cylinder, the fertilizer solution in water tank
It is sprayed onto at outage in soil after entering out sap cavity, it is achieved soil humidification, cooling, the effect of weight gaining.
As preferably, the downside of described dividing plate is provided with steel wire, described steel wire undulate structure, steel wire
The corresponding each outage of online recess, is connected by screw between high spot and the dividing plate on steel wire.
Steel wire has insulation blocking effect to steam vent, prevents soil clogging outage；Steel wire undulate,
During pressurized, there is elasticity at each male and fomale(M&F) on steel wire, when soil adheres on mesh, soil below
By elasticity, the soil in mesh is separated with steel wire when of extruded cords net.
As preferably, described offgas duct is connected with vent gas treatment tower.Tail gas is processed by vent gas treatment tower,
Prevent tail gas pollution environment.
Therefore, this utility model has the advantages that (1) equipment utilization solar energy heating, saves energy
Source, reduces Soil Thermal desorption cost；(2) carrying out thermal desorption after soil first passes through preheating again, Soil Thermal is desorbed
Efficiency is high；(3) soil after thermal desorption carries out being humidified in post processing cylinder, lowers the temperature, weight gaining processes, and processes
After soil just can directly use.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is enlarged diagram at A in Fig. 1.
Fig. 3 is enlarged diagram at B in Fig. 1.
In figure: support 1, cartridge heater 2, feeding-passage 3, tapping channel 4, solar energy heat collection pipe 5, the sun
Can reflector 6, rotating cylinder 7, connecting rod 8, heat transmission fin 9, shifting block 10, main shaft 11, hurricane band 12, motor
13, air inlet pipe 14, exhaustor 15, exhaust blower 16, air flue 17, connecting tube 18, swivel joint 19, pre-
Cartridge heater 20, feed hopper 21, feeding packing auger 22, feeding packing auger axle 23, return duct 24, offgas duct 25,
Blade 26, heat absorption muff 27, post processing cylinder 28, discharging channel 29, discharging auger 30, discharging auger
Axle 31, dividing plate 32, liquid storage cylinder 33, outage 34, water tank 35, water pipe 36, water pump 37, steel wire
38, screw 39, outer glass pipe 50, inner glass tube 51, ring vaccum chamber 52, heat absorbing coating 53.
Detailed description of the invention
With detailed description of the invention, this utility model is further described below in conjunction with the accompanying drawings:
A kind of Soil Thermal desorption prosthetic device as shown in Figure 1, including support 1, the level that is located on support
Cartridge heater 2, be provided with feeding-passage 3 on the upside of the left end of cartridge heater 2, be provided with out on the downside of the right-hand member of cartridge heater 2
Material passage 4, the outside of cartridge heater is provided with solar energy heat collection pipe 5, and the side of support is provided with solar energy reflector 6；
Being provided with main shaft 11 in cartridge heater 2, the surface of main shaft is provided with hurricane band 12, and support 1 is provided with drive shaft and turns
Dynamic motor 13, is connected by Tong Bu wheel, Timing Belt between motor with main shaft, sets on the upside of the left end of cartridge heater
Having air inlet pipe 14, be provided with exhaustor 15 on the upside of the right-hand member of cartridge heater, exhaustor is provided with exhaust blower 16；Main shaft
Being provided with air flue 17 in 11, the outlet side of exhaust blower is connected with the right-hand member of main shaft by connecting tube 18, connecting tube
It is provided with swivel joint 19 with the junction of main shaft.
As in figure 2 it is shown, the inner side of cartridge heater 2 is provided with rotating cylinder 7, formed between annular between rotating cylinder and cartridge heater
Gap, is provided with some connecting rods 8 between rotating cylinder inside and main shaft, rotating cylinder and main shaft realize synchronous axial system by connecting rod,
The lateral surface of rotating cylinder 7 is provided with some axially distributed heat transmission fins 9, and the inwall of rotating cylinder is provided with some use
In stirring the shifting block 10 of soil, the cross section of shifting block is V-shaped；Solar energy heat collection pipe 5 include outer glass pipe 50,
Inner glass tube 51, outer glass pipe is tightly connected with the two ends of inner glass tube, between outer glass pipe and inner glass tube
Forming a ring vaccum chamber 52 closed, the outer wall of inner glass tube is provided with heat absorbing coating 53.
Be positioned on the upside of the left end of cartridge heater 2 level that is provided with on support 1 preheats cylinder 20, preheats cylinder 20
Connect with feeding-passage 3 on the downside of left end, preheat and on the upside of the right-hand member of cylinder 20, be provided with feed hopper 21, preheat cylinder
Inside it is provided with feeding packing auger 22, is connected by Tong Bu wheel, Timing Belt between feeding packing auger with main shaft, feeding packing auger
The rotation direction of 22 is oppositely oriented with hurricane band 12；Central through hole it is provided with, a left side for main shaft in feeding packing auger axle 23
Being connected by return duct 24 between end and the left end of feeding packing auger axle, the two ends of return duct are equipped with swivel joint,
The right-hand member of feeding packing auger axle is provided with offgas duct 25, and offgas duct is connected with vent gas treatment tower；On feeding packing auger axle 23
Being provided with some blades 26, the outer sheath preheating cylinder is provided with heat absorption muff 27.
It is provided with the post processing cylinder 28 of level on the downside of the right-hand member of support 1, leads to discharging on the upside of the right-hand member of post processing cylinder
Road connects, and is provided with discharging channel 29, is provided with discharging auger 30 in post processing cylinder on the downside of the left end of post processing cylinder,
The right-hand member of discharging screw-conveyer-shaft 31 is connected with the right-hand member of main shaft by synchronization wheel, Timing Belt；After as it is shown on figure 3,
The upside of process cartridge 28 is provided with dividing plate 32, surrounds liquid storage cylinder 33, dividing plate sets between dividing plate and post processing cylinder
Having some outages 34, frame bottom is provided with water tank 35, is provided with fertilizer solution, water tank 35 and storage in water tank
Being connected by water pipe 36 between sap cavity 33, water pipe is provided with water pump 37, and the downside of dividing plate is provided with steel wire 38,
Steel wire undulate structure, the corresponding each outage of the recess on steel wire, the high spot on steel wire
It is connected by screw 39 with between dividing plate.
In conjunction with accompanying drawing, using method of the present utility model is as follows: whole device is placed under the sun, adjusting apparatus
Position so that solar energy reflector is assembled sunlight, reflexed to solar energy heating tube-surface, solar energy collection
Heat after heat pipe heat absorption passes to cartridge heater by heat-conducting medium, thus heats in cartridge heater, row
Blower fan is opened, the hot-air in cartridge heater under the effect of exhaust blower after main shaft right-hand member enters in air flue from a left side
End enters return duct, and the gas in return duct is discharged after in feeding packing auger axle at offgas duct again；Soil
Entering at feed hopper preheats in cylinder, and soil is preheated by the high-temperature gas in feeding packing auger axle, carries
The high soil moisture, the blade on feeding packing auger axle is block soil chopping, the soil after preheating and shredding simultaneously
It is interior by post bake that earth enters cartridge heater, and in heating process, soil is overturn, divides by hurricane band, rotating cylinder
Dissipate, improve the soil efficiency of heating surface, when temperature is heated to more than 150 DEG C, the middle benzene in soil, toluene, diformazan
The harmful substance such as benzene, ethylbenzene evaporates formation gaseous state from soil, and the harmful toxic matter of gaseous state is inhaled by exhaust blower
Walk, finally enter in vent gas treatment tower from offgas duct, soil after thermal desorption, worm's ovum in soil,
Weed seed is killed by high temperature, and the murder by poisoning Organic substance in soil is desorbed, decomposes, discharges, disposes,
The rear soil being dried enters in post processing cylinder, and the fertilizer solution in water tank is sprayed onto in soil, carries out soil
Humidification, cooling, weight gaining, finally at discharging channel discharge soil just can be directly used in gardens, farmland,
Vegetable garden uses.
Claims (8)
1. a Soil Thermal desorption prosthetic device, including support, the cartridge heater of level that is located on support, described in add
It is provided with feeding-passage on the upside of the left end of hot cylinder, is provided with tapping channel on the downside of the right-hand member of cartridge heater, it is characterized in that,
The outside of described cartridge heater is provided with solar energy heat collection pipe, and the side of described support is provided with solar energy reflector,
Being provided with main shaft in described cartridge heater, the surface of described main shaft is provided with hurricane band, and described support sets
There is the motor that drive shaft rotates, on the upside of the left end of described cartridge heater, be provided with air inlet pipe, described cartridge heater
Being provided with exhaustor on the upside of right-hand member, described exhaustor is provided with exhaust blower, and the inner side of described cartridge heater is provided with
Rotating cylinder, forms annular gap, is provided with between described rotating cylinder inside and main shaft between described rotating cylinder and cartridge heater
Some connecting rods.
A kind of Soil Thermal desorption prosthetic device the most according to claim 1, is characterized in that, described solar energy
Thermal-collecting tube includes that outer glass pipe, inner glass tube, described outer glass pipe seal even with the two ends of inner glass tube
Connect, between outer glass pipe and inner glass tube, form a ring vaccum chamber closed, described inner glass tube
Outer wall is provided with heat absorbing coating.
A kind of Soil Thermal desorption prosthetic device the most according to claim 1, is characterized in that, outside described rotating cylinder
Side is provided with some axially distributed heat transmission fins, and the inwall of described rotating cylinder is provided with some for turning over
Breaking ground the shifting block of earth, the cross section of shifting block is V-shaped.
A kind of Soil Thermal desorption prosthetic device the most according to claim 1, is characterized in that, in described main shaft
Being provided with air flue, the outlet side of described exhaust blower is connected with the right-hand member of main shaft by connecting tube, connecting tube and master
The junction of axle is provided with swivel joint.
A kind of Soil Thermal desorption prosthetic device the most according to claim 4, is characterized in that, on described support
Be positioned on the upside of the left end of cartridge heater the level that is provided with preheats cylinder, described in preheat on the downside of the left end of cylinder with enter
Material channel connection, described in preheat and on the upside of the right-hand member of cylinder, be provided with feed hopper, described preheat cylinder in be provided with
Feeding packing auger, is connected by Tong Bu wheel, Timing Belt between described feeding packing auger and main shaft, described charging strand
The rotation direction of dragon is oppositely oriented with hurricane band；Central through hole, a left side for described main shaft it is provided with in feeding packing auger axle
Being connected by return duct between end and the left end of feeding packing auger axle, the two ends of described return duct are equipped with rotation
Joint, the right-hand member of described feeding packing auger axle is provided with offgas duct.
A kind of Soil Thermal desorption prosthetic device the most according to claim 5, is characterized in that, described charging strand
Dragon axle is provided with some blades；The outer sheath preheating cylinder is provided with heat absorption muff.
A kind of Soil Thermal desorption prosthetic device the most according to claim 1, is characterized in that, the right side of described support
It is provided with the post processing cylinder of level on the downside of end, connects with tapping channel on the upside of the right-hand member of described post processing cylinder,
It is provided with discharging channel on the downside of the left end of described post processing cylinder, in post processing cylinder, is provided with discharging auger, discharging stranding
The right-hand member of dragon axle is connected with the right-hand member of main shaft by synchronization wheel, Timing Belt；The upside of described post processing cylinder sets
Having dividing plate, surround liquid storage cylinder between described dividing plate and post processing cylinder, described dividing plate is provided with some outages,
Described frame bottom is provided with water tank, is connected by water pipe between described water tank and liquid storage cylinder, and water pipe is provided with
Water pump, is provided with fertilizer solution in water tank.
A kind of Soil Thermal desorption prosthetic device the most according to claim 7, is characterized in that, under described dividing plate
Side is provided with steel wire, described steel wire undulate structure, the corresponding each discharge opeing of the recess on steel wire
Hole, is connected by screw between high spot and the dividing plate on steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237574.5U CN205587425U (en) | 2016-03-21 | 2016-03-21 | Soil thermal desorption prosthetic devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237574.5U CN205587425U (en) | 2016-03-21 | 2016-03-21 | Soil thermal desorption prosthetic devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205587425U true CN205587425U (en) | 2016-09-21 |
Family
ID=56929949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620237574.5U Expired - Fee Related CN205587425U (en) | 2016-03-21 | 2016-03-21 | Soil thermal desorption prosthetic devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205587425U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598151A (en) * | 2016-03-21 | 2016-05-25 | 浙江机电职业技术学院 | Thermal-desorption soil restoring device |
| CN109121401A (en) * | 2017-02-20 | 2019-01-01 | 韩国铁道技术研究院 | Using microwave indirect irradiation method, desorption system is pyrolyzed and using the system to the THE METHOD OF THERMAL DESORPTION used by oil pollution soil and gravel for the preparatory heating device for being had microwave leakage preventing device and utilization waste heat by oil pollution soil and gravel use |
-
2016
- 2016-03-21 CN CN201620237574.5U patent/CN205587425U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598151A (en) * | 2016-03-21 | 2016-05-25 | 浙江机电职业技术学院 | Thermal-desorption soil restoring device |
| CN105598151B (en) * | 2016-03-21 | 2018-08-10 | 浙江机电职业技术学院 | A kind of soil thermal desorption prosthetic device |
| CN109121401A (en) * | 2017-02-20 | 2019-01-01 | 韩国铁道技术研究院 | Using microwave indirect irradiation method, desorption system is pyrolyzed and using the system to the THE METHOD OF THERMAL DESORPTION used by oil pollution soil and gravel for the preparatory heating device for being had microwave leakage preventing device and utilization waste heat by oil pollution soil and gravel use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201209 Address after: Dangtou Industrial Zone, Tangxia Town, Ruian City, Wenzhou City, Zhejiang Province Patentee after: Ruian Hongwei steel pipe profile Co., Ltd Address before: Hangzhou City, Zhejiang Province, 310053 Wen bin Zhejiang Institute of Mechanical and Electrical Engineering No. 528 Patentee before: ZHEJIANG INSTITUTE OF MECHANICAL & ELECTRICAL ENGINEERING |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20210321 |