CN206279135U - A kind of sensing heating electronic waste pyrolysis installation - Google Patents
A kind of sensing heating electronic waste pyrolysis installation Download PDFInfo
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- CN206279135U CN206279135U CN201621355017.XU CN201621355017U CN206279135U CN 206279135 U CN206279135 U CN 206279135U CN 201621355017 U CN201621355017 U CN 201621355017U CN 206279135 U CN206279135 U CN 206279135U
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Abstract
The utility model is related to refuse pyrolysis technical field, more particularly, to a kind of sensing heating electronic waste pyrolysis installation.The device includes：Electronic waste pyrolysis reactor and induction heating system, wherein, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, the material pyrolization modules include shaped spiral housing and material propulsion spiral, induction coil is wound in the shaped spiral housing external spiral, thermal insulation layer is filled in the confined space formed between the reactor shell and the shaped spiral housing；Described induction heating system includes：Induction coil and the thermal insulation layer for insulation for providing thermal source, the induction coil spiral packaging is in the shaped spiral housing outer surface, of length no more than reactor shell.The device has the advantages that pyrolysis efficiency high, continuous feeding and discharging and energy-saving effect are notable.
Description
Technical field
The utility model is related to refuse pyrolysis technical field, is pyrolyzed more particularly, to a kind of sensing heating electronic waste and filled
Put.
Background technology
In recent years, various electronic products are maked rapid progress, and new and old replacement is increasingly faster, and the electronic waste for producing therefrom is just
Increased with exponential.The heavy metal element that it contains can be serious pollution environment, if electronic waste is dealt with improperly will produce
The toxic and harmfuls such as raw dioxin cause secondary pollution.Processing method currently used for electronic circuit board is main by mechanical-physical
Method, metallurgical extraction method, biological treatment and pyrolysismethod etc., wherein mechanical approach, metallurgical extraction method, biological treatment etc. are main
Lay particular emphasis on the recovery of metal in circuit board, using pyrolysismethod can not only be in recovery train plate metal and also line can be realized
The resource of the Non-metallic components such as resin, glass fibre in the plate of road, conventional pyrolytic mode can not realize continuous feeding and discharging, and pyrolysis
Complex process, pyrolysis efficiency are low, energy consumption is higher.
Thermogravimetric test equipment being used existing electronic waste pyrolysis reactor, the device for using is tested for fixed-bed pyrolysis more
Device, the device mainly includes resistance furnace, pyrolysis reactor, nitrogen cylinder and gas collection bag etc..Wherein resistance furnace provides heat
, there is a space in source inside it, pyrolysis reactor is a hydrostatic column, and material is just put into pyrolysis reactor.Pyrolysis is real
When testing, the pyrolysis reactor equipped with material is put into resistance furnace first, then opening nitrogen cylinder is passed through nitrogen and starts to purge,
After purging enough time, resistance furnace is powered and produces temperature field, and material just starts pyrolysis, and airbag starts to collect gas, waits gas
When body is not regenerated, experiment terminates, and treats that body of heater naturally cools to 40 DEG C, opens body of heater, takes out pyrolysis residue, weighs and unit
Element analysis, finally closes instrument.Above-mentioned fixed-bed pyrolysis experimental technique, can not realize that material is back to back, accordingly
Material continuous pyrolysis can not be realized, and the point of the utility model most critical is exactly, using the reactor of screw propulsion mode, to realize
Be back to back material, continuous pyrolysis, so that pyrolytic process is more simple and efficient, and this kind of material of being back to back pyrolysis work
Skill is more easy to realize industrialization.Therefore, how to design a kind of efficient, system architecture and all simple system of technological process turns into ability
The problem of domain urgent need to resolve.
Utility model content
The utility model is in view of the shortcomings of the prior art, it is proposed that a kind of sensing heating electronic waste pyrolysis installation.The dress
Putting has the advantages that pyrolysis efficiency high, continuous feeding and discharging and energy-saving effect are notable.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
The utility model proposes a kind of sensing heating electronic waste pyrolysis installation.According to embodiment of the present utility model,
The device includes：Electronic waste pyrolysis reactor and induction heating system, wherein, the electronic waste pyrolysis reactor includes：
Material pyrolization modules and reactor shell, the material pyrolization modules are across the both sides of the reactor shell, and the thing
Expect the exposed outside in the reactor shell in two ends of pyrolization modules；The material pyrolization modules include shaped spiral housing and
Material advances spiral, wherein, the shaped spiral housing is extended through from the reactor shell side along the reactor enclosure intracoelomic cavity
The opposite side of the reactor shell is crossed, the exposed outside in the reactor shell in two ends of the shaped spiral housing makes
Obtain and form confined space between the reactor shell and the shaped spiral housing, the shaped spiral housing external spiral in confined space
Winding induction coil, thermal insulation layer is filled in the confined space formed between the reactor shell and the shaped spiral housing；Institute
The induction heating system stated includes：Induction coil and the thermal insulation layer for insulation for providing thermal source, the induction coil spiral shell
Rotation is wrapped in the shaped spiral housing outer surface, of length no more than reactor shell.
Inventor has found that using the sensing heating electronic waste pyrolysis installation, be capable of achieving material of being back to back, material is in warm
It is tiled in solution reactor, is contacted with shaped spiral housing fully, high-temperature spiral housing is by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, it is real
The function of being advanced in pyrolysis is showed；By the use of induction heating system as the thermal source of pyrolysis reactor, its induction coil is powered up
Pressure can be with precise control, and as a result of induction heating mode, heating rate can realize precise control, it is achieved thereby that efficiently
Stable heating, while avoiding the safety problems such as long-term use heating system short circuit；Induction heating system connects with pyrolysis reactor
Be connected together composition sensing heating electronic waste pyrolysis installation, realizes material of being back to back, material by continuous quick abundant
Pyrolysis and the function such as energy-efficient.
It is exposed to be provided with the shaped spiral housing of the reactor enclosure external body according to embodiment of the present utility model
Material inlet, oil gas vent, slag charge outlet, and the material inlet is located at the shaped spiral housing upper right quarter, and the oil gas goes out
Mouth is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at the shaped spiral housing lower left quarter.
According to embodiment of the present utility model, the material propulsion spiral is located inside the shaped spiral housing, and described
Material propulsion spiral includes helical axis and helical blade, and the helical blade is fixed on the helical axis and is arranged to and institute
State helical axis to rotate coaxially, the helical axis stretches out the shaped spiral housing in the material inlet side, the helical blade
Length is identical with the shaped spiral housing.
According to embodiment of the present utility model, the induction coil is wrapped in the shaped spiral housing outer surface, with propeller cap
Body is in close contact.
According to embodiment of the present utility model, the reactor shell is insulation shell.
According to embodiment of the present utility model, the shaped spiral housing is heat-resisting steel sheel, and thickness is 5-8mm.
According to embodiment of the present utility model, the inside of the insulation shell is filled with insulation material.
According to embodiment of the present utility model, the insulation material is heat-preservation cotton and asbestos board, and heat-preservation cotton fills needs
Compacting, to ensure heat insulating ability.
The utility model at least has the advantages that：
Using the electrical heating electronic waste pyrolysis installation, material of being back to back, material quilt in pyrolysis reactor are capable of achieving
Tiling, is contacted fully with shaped spiral housing, and high-temperature spiral housing is heated by radiation and heat conduction two ways to material, therefore material
Fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, and realizes in pyrolysis
The function of propulsion；By the use of electric heating system as the thermal source of pyrolysis reactor, its heating module institute making alive can with precise control,
As a result of Electric heating, heating rate can realize precise control, it is achieved thereby that efficient stable heat supply.Electrical heating system
System links together with pyrolysis reactor and constitutes electrical heating electronic waste pyrolysis installation, realizes material of being back to back, material quilt
Continuous quick fully pyrolysis and the function such as energy-efficient.
Brief description of the drawings
Fig. 1 is sensing heating electronic waste pyrolysis installation structure chart of the present utility model.
Wherein, 1, propulsion spiral；2nd, material inlet；3rd, slag charge outlet；4th, oil gas vent；5th, shaped spiral housing；6th, insulation cladding
Body；7th, thermal insulation layer；8th, induction coil；9th, helical axis；10th, helical blade.
Specific embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to specific embodiment
The utility model is described in further detail.The embodiments described below is exemplary, is only used for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.
The utility model provides a kind of sensing heating electronic waste pyrolysis installation.According to embodiment of the present utility model,
Fig. 1 is sensing heating electronic waste pyrolysis installation structure chart of the present utility model, and shown in reference picture 1, the device includes：Electronics rubbish
Rubbish pyrolysis reactor and induction heating system, wherein, the electronic waste pyrolysis reactor includes：Material pyrolization modules and reaction
Device housing 6, the material pyrolization modules across the both sides of the reactor shell, and the material pyrolization modules two ends
Hold the exposed outside in the reactor shell；Described induction heating system includes：The He of induction coil 8 for providing thermal source
For the thermal insulation layer 7 being incubated, the induction coil spiral packaging is of length no more than described anti-in the outer surface of the shaped spiral housing 5
Answer device housing.
Inventor has found that using the sensing heating electronic waste pyrolysis installation, be capable of achieving material of being back to back, material is in warm
It is tiled in solution reactor, is contacted with shaped spiral housing fully, high-temperature spiral housing is by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, it is real
The function of being advanced in pyrolysis is showed；By the use of induction heating system as the thermal source of pyrolysis reactor, its induction coil is powered up
Pressure can be with precise control, and as a result of induction heating mode, heating rate can realize precise control, it is achieved thereby that efficiently
Stable heating, while avoiding the safety problems such as long-term use heating system short circuit；Induction heating system connects with pyrolysis reactor
Be connected together composition sensing heating electronic waste pyrolysis installation, realizes material of being back to back, material by continuous quick abundant
Pyrolysis and the function such as energy-efficient.
According to specific embodiment of the utility model, shown in reference picture 1, electronic waste pyrolysis reactor and sensing heating system
System is arranged in inside the confined space that the reactor shell is formed with the shaped spiral housing, and peace placed in the middle along its length
Dress；The material pyrolization modules include shaped spiral housing and material propulsion spiral 1, wherein, the shaped spiral housing is heat-resisting steel sheel,
Thickness is 5-8mm, and extends through the reactor shell along the reactor enclosure intracoelomic cavity from the reactor shell side
Opposite side, the exposed outside in the reactor shell in two ends of the shaped spiral housing so that the reactor shell
Confined space is formed between the shaped spiral housing, the shaped spiral housing external spiral winding induction coil, sense in confined space
Coil is answered to be in close contact with shaped spiral housing；Thermal insulation layer be filled between the reactor shell and the shaped spiral housing formed it is close
Close in space；The confined space remainder uses the filled thermal insulation materials, the radiation loss for reducing wall.
According to some embodiments of the present utility model, the specific species of thermal insulation layer is unrestricted, the thermal insulation layer material
It is preferred that asbestos fibre, is attached to form confined space between the insulation shell and the shaped spiral housing using filling mode.
It is powered when to induction coil, induction coil makes shaped spiral housing outer surface have temperature to raise under certain voltage effect,
By the control to the given voltage of induction coil, rational heating gradient is adjusted, after temperature enters setting value, controlled by PID
Temperature processed, realizes the temperature of technological requirement, and temperature error is ± 5 DEG C.
According to specific embodiment of the utility model, as shown in figure 1, the exposed spiral shell in the reactor enclosure external body
Material inlet 2, oil gas vent 4, slag charge outlet 3 are provided with rotation housing, and the material inlet is located at the shaped spiral housing
Upper right quarter, the oil gas vent is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at the shaped spiral housing lower left quarter.
After reactor temperature stabilization, shaped spiral housing is heated to uniform temperature（600-650℃）, now just can be in thing
Material import is put into material, and the back forward movement side that material enters into propulsion spiral is pyrolyzed, until moving to slag charge outlet quilt
Pyrolysis is finished, and is pyrolyzed the gas for producing and is discharged from oil gas vent, and remaining pyrolysis slag charge is exported from slag charge discharges.
According to specific embodiment of the utility model, as shown in figure 1, material propulsion spiral is located at the shaped spiral housing
Inside, and material propulsion spiral includes helical axis 10 and helical blade 11, and the helical blade is fixed on the spiral
On axle and it is arranged to be rotated coaxially with the helical axis, the helical axis stretches out the propeller cap in the material inlet side
Body, the length of the helical blade is identical with the shaped spiral housing, and described propulsion spiral is in the case where outside motor belt motor is dynamic with certain
Rotational speed, the material is entered into after the reactor, is gradually pyrolyzed with the rising of temperature, when material is being carried out
During pyrolysis, be pushed into spiral and gradually push ahead, realize advance in pyrolysis, be back to back material and material by it is continuous soon
The function of fast fully pyrolysis.
According to specific embodiment of the utility model, the induction coil is wrapped in the shaped spiral housing outer surface, with spiral shell
Rotation housing is in close contact, and using induction heating system as the thermal source of electronic waste pyrolysis installation, heats up more uniform, and control is more
Plus it is accurate, thermal source is more stablized, and the efficiency of heating surface is higher.
According to specific embodiment of the utility model, the reactor shell is insulation shell, and the inside of insulation shell is filled out
Filled with insulation material, the radiation loss for reducing wall.
According to specific embodiment of the utility model, the specific species of the insulation material is unrestricted, as long as can reach
To the effect of insulation.In some embodiments of the present utility model, the insulation material is heat-preservation cotton and asbestos board, and institute
Stating heat-preservation cotton filling needs compacting, to ensure heat insulating ability.
In other side of the present utility model, the utility model provides a kind of material using foregoing device
Pyrolytic process, according to embodiment of the present utility model, can include procedure below：
S1. induction heating system heating process：It is powered to the induction coil, the induction coil is acted in certain voltage
Under make the shaped spiral housing outer surface there is temperature to raise, by the control to the given voltage of the induction coil, adjustment is rational
Heating gradient, after temperature enters setting value, by PID control temperature, realizes the temperature of technological requirement, and temperature error is ± 5
℃。
According to specific embodiment of the utility model, the induction coil is wrapped in the shaped spiral housing outer surface, with spiral shell
Rotation housing is in close contact, and using induction heating system as the thermal source of electronic waste pyrolysis installation, heats up more uniform, and control is more
Plus it is accurate, thermal source is more stablized, and the efficiency of heating surface is higher.
S2. material pyrolytic process：After reactor temperature stabilization, the shaped spiral housing is heated to a constant temperature
Degree（600-650℃）, now just material can be put into the material inlet, the material enters into the back of the propulsion spiral
Move forward side to be pyrolyzed, finished until moving to slag charge outlet and being pyrolyzed, be pyrolyzed the gas that produces by from the oil gas
Outlet discharge, remaining pyrolysis slag charge is exported from the slag charge discharges.
According to specific embodiment of the utility model, as shown in figure 1, the exposed spiral shell in the reactor enclosure external body
Material inlet, oil gas vent, slag charge outlet are provided with rotation housing, and the material inlet is located at the shaped spiral housing upper right
Portion, the oil gas vent is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at the shaped spiral housing lower left quarter.
According to specific embodiment of the utility model, as shown in figure 1, material propulsion spiral is located at the shaped spiral housing
Inside, and material propulsion spiral includes helical axis and helical blade, and the helical blade is fixed on the helical axis
And be arranged to be rotated coaxially with the helical axis, the helical axis stretches out the shaped spiral housing in the material inlet side,
The length of the helical blade is identical with the shaped spiral housing, and described propulsion spiral is in the case where outside motor belt motor is dynamic with certain rotating speed
Rotate, the material is entered into after the reactor, is gradually pyrolyzed with the rising of temperature, when material is being pyrolyzed
When, it is pushed into spiral and gradually pushes ahead, realize and advanced in pyrolysis, be back to back material and material is continuously quickly filled
Divide the function of pyrolysis.
Inventor has found that using the sensing heating electronic waste pyrolysis installation, be capable of achieving material of being back to back, material is in warm
It is tiled in solution reactor, is contacted with shaped spiral housing fully, high-temperature spiral housing is by radiation and heat conduction two ways to material
Heat, therefore material fully can be quickly pyrolyzed, and material is pushed into spiral in pyrolytic process and gradually pushes ahead, it is real
The function of being advanced in pyrolysis is showed；By the use of induction heating system as the thermal source of pyrolysis reactor, its induction coil is powered up
Pressure can be with precise control, and as a result of induction heating mode, heating rate can realize precise control, it is achieved thereby that efficiently
Stable heating, while avoiding the safety problems such as long-term use heating system short circuit；Induction heating system connects with pyrolysis reactor
Be connected together composition sensing heating electronic waste pyrolysis installation, realizes material of being back to back, material by continuous quick abundant
Pyrolysis and the function such as energy-efficient.
Embodiment one：
Induction heating system is heated using induction coil, and induction coil string diameter is 1.2mm, and overall length is 15m, and pitch is
50mm, electronic waste material（Circuit board, electric wire, keyboard etc.）It is made into the particle of 3-6mm, inlet feed amount is 1kg/h, most
The pyrolysis slag charge for obtaining eventually is 0.8kg/h, and the pyrolysis oil gas of generation is 0.286 Nm3/h, realizes material of being back to back.Pyrolysis
During, constant temperature is maintained at 650 DEG C, and thermal source stability is fine.
Solid residue after pyrolysis is detected, it is found that main component is the carbon and metal that can not be pyrolyzed, metal bag
Copper, nickel, iron etc. are included, the composition that resin and glass fibre etc. can be pyrolyzed is not contained, pyrolysis effect is fine.
Oil gas chemical examination composition is as follows：
The electronic waste pyrolysis gas composition of table 1
| Title | CO | |||||
| Content (%) | 42.4 | 8.1 | 1.4 | 5.1 | 20.1 | 22.9 |
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Person's feature can in an appropriate manner be combined in one or more any embodiments or example.
In description of the present utility model, it is to be understood that term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation or position relationship of instruction are, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model
Described with simplified, must be with specific orientation, with specific orientation structure rather than the device or element for indicating or imply meaning
Make and operate, therefore it is not intended that to limitation of the present utility model.Additionally, term " first ", " second " are only used for describing mesh
, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, limit
Surely there is " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".It is new in this practicality
In the description of type, unless otherwise indicated, " multiple " is meant that two or more.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or put connection；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification, simultaneously for those of ordinary skill in the art, foundation
The thought of the application, will change in specific embodiments and applications.
Claims (8)
1. a kind of sensing heating electronic waste pyrolysis installation, it is characterised in that including：Electronic waste pyrolysis reactor and sensing add
Hot systems, wherein,
The electronic waste pyrolysis reactor includes：Material pyrolization modules and reactor shell, the material pyrolization modules across
The both sides of the reactor shell, and two ends of the material pyrolization modules are exposed in the outer of the reactor shell
Portion；
The material pyrolization modules include shaped spiral housing and material propulsion spiral, wherein, the shaped spiral housing is from the reactor
Housing side extends through the opposite side of the reactor shell, two of the shaped spiral housing along the reactor enclosure intracoelomic cavity
The exposed outside in the reactor shell in end so that form confined air between the reactor shell and the shaped spiral housing
Between, the shaped spiral housing external spiral winding induction coil in confined space, thermal insulation layer is filled in the reactor shell and institute
State in the confined space formed between shaped spiral housing；
Described induction heating system includes：Induction coil and the thermal insulation layer for insulation for providing thermal source, the sensing
Coil helix is wrapped in the shaped spiral housing outer surface, of length no more than reactor shell.
2. sensing heating electronic waste pyrolysis installation according to claim 1, it is characterised in that exposed in the reactor
Material inlet, oil gas vent, slag charge outlet, and the material inlet is provided with the shaped spiral housing of hull outside to be located at
The shaped spiral housing upper right quarter, the oil gas vent is located at the shaped spiral housing upper left quarter, and the slag charge outlet is located at the spiral shell
Rotation housing lower left quarter.
3. sensing heating electronic waste pyrolysis installation according to claim 1, it is characterised in that the material advances spiral
Inside the shaped spiral housing, and material propulsion spiral includes helical axis and helical blade, and the helical blade is consolidated
Due on the helical axis and being arranged to be rotated coaxially with the helical axis, the helical axis is stretched in the material inlet side
Go out the shaped spiral housing, the length of the helical blade is identical with the shaped spiral housing.
4. sensing heating electronic waste pyrolysis installation according to claim 1, it is characterised in that the induction coil winding
In the shaped spiral housing outer surface, it is in close contact with shaped spiral housing.
5. the sensing heating electronic waste pyrolysis installation according to any one of claim 1-4, it is characterised in that described anti-
It is insulation shell to answer device housing.
6. the sensing heating electronic waste pyrolysis installation according to any one of claim 1-4, it is characterised in that the spiral shell
Rotation housing is heat-resisting steel sheel, and thickness is 5-8mm.
7. sensing heating electronic waste pyrolysis installation according to claim 5, it is characterised in that the insulation shell it is interior
Portion is filled with insulation material.
8. sensing heating electronic waste pyrolysis installation according to claim 7, it is characterised in that the insulation material is to protect
Warm cotton and asbestos board, and heat-preservation cotton filling needs compacting, to ensure heat insulating ability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355017.XU CN206279135U (en) | 2016-12-12 | 2016-12-12 | A kind of sensing heating electronic waste pyrolysis installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621355017.XU CN206279135U (en) | 2016-12-12 | 2016-12-12 | A kind of sensing heating electronic waste pyrolysis installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206279135U true CN206279135U (en) | 2017-06-27 |
Family
ID=59075921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621355017.XU Expired - Fee Related CN206279135U (en) | 2016-12-12 | 2016-12-12 | A kind of sensing heating electronic waste pyrolysis installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206279135U (en) |
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2016
- 2016-12-12 CN CN201621355017.XU patent/CN206279135U/en not_active Expired - Fee Related
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Address after: 102200 Beijing City, Changping District science and Technology Park Chang Huai Lu No. 155 Patentee after: Shenwu Technology Group Co.,Ltd. Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18 Patentee before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd. |
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