A kind of electronic waste cracker
Technical field
The utility model is related to refuse pyrolysis technical field, more particularly, to a kind of electronic waste cracker.
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 it is low, energy consumption is higher, furnace pressure is unstable.Using heat more than existing electronic waste pyrolysis reactor
Weight experimental facilities, the device for using is fixed-bed pyrolysis experimental provision, and the device mainly includes resistance furnace, pyrolysis reactor, nitrogen
Gas cylinder and gas collection bag etc..Wherein resistance furnace provides thermal source, there is a space inside it, and pyrolysis reactor is a cylinder
Device is described, material is just put into pyrolysis reactor.During Pyrolysis Experiment, the pyrolysis reactor equipped with material is put into resistance first
In stove, then opening nitrogen cylinder is passed through nitrogen and starts to purge, and after purging enough time, resistance furnace is powered and produces temperature field,
Material just starts pyrolysis, and airbag starts to collect gas, and when waiting gas not regenerate, experiment terminates, and treats that body of heater naturally cools to 40
DEG C, body of heater is opened, pyrolysis residue is taken out, weigh and elementary analysis, finally close instrument, above-mentioned fixed-bed pyrolysis experiment side
Method, can not realize that material is back to back, and material continuous pyrolysis can not be realized accordingly.Therefore a kind of height how is designed
The electronic waste processing unit of effect, energy fully Resource recovery turns into the problem of this area urgent need to resolve.
Utility model content
The utility model is intended at least solve one of technical problem present in prior art.Therefore, the utility model is carried
Supplied a kind of electronic waste cracker, described electronic waste cracker have pyrolysis efficiency high, continuous feeding and discharging and
The advantages of thermal source, pressure, atmosphere in device are stablized, open pit mining energy-saving effect is notable.
In order to solve the above technical problems, the utility model proposes technical scheme be:
The utility model proposes a kind of electronic waste cracker, according to embodiment of the present utility model, the device bag
Include:Electronic waste cracking reactor and electric heating system, wherein, the electronic waste cracking reactor includes:Material cracking group
Part, reactor shell and indirect heat exchanger, the material cracking component is across the both sides of the reactor shell, and the thing
The exposed outside in the reactor shell in two ends of material cracking component, the indirect heat exchanger is located at the reactor enclosure
The outside of body, and the inlet end of the indirect heat exchanger is connected with the oil gas vent pipe in the middle part of the reactor shell,
Outlet side is connected with the pyrolysis gas inlet tube in the middle part of the reactor shell, for making tar and pyrolysis gas in pyrolysis gas
Refrigerated separation is carried out, the pyrolysis gas are again introduced into being cracked in the cracker through the pyrolysis gas inlet tube;It is described
Material cracking component includes shaped spiral housing and propulsion spiral, wherein, the shaped spiral housing is from the reactor shell side along institute
The opposite side that reactor enclosure intracoelomic cavity extends through the reactor shell is stated, two ends of the shaped spiral housing are exposed in institute
State the outside of reactor shell so that confined space is formed between the reactor shell and the shaped spiral housing, in confined air
The interior shaped spiral housing outer wrapping insulating barrier, the insulating barrier outer wrapping installs the heating module;The electric heating system,
Positioned at the inside of the confined space, including:For provide thermal source heating module and for ensureing the heating module in
The insulating barrier that shaped spiral housing in heating wire and the material pyrolization modules insulate, the insulating barrier is located in the confined space
The outer surface of the shaped spiral housing in portion, the heating module is located at the outer surface of the insulating barrier.
Inventor has found, according to the device of the utility model embodiment, is capable of achieving material of being back to back, and material is in pyrolysis
It is tiled in reactor, is contacted with shaped spiral housing fully, high-temperature spiral housing is added 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, and realizes
The function of being advanced in pyrolysis;The high-temperature product for producing is pyrolyzed simultaneously isolates tar and heat by being able to after indirect heat exchanger
Vent one's spleen, the pyrolysis gas after separation are re-introduced into the 3rd module and are cracked by pyrolysis gas import, the cracking gas quilt of generation
Discharge is collected, and the slag charge after cracking is exported from slag charge and discharged;And by the use of electric heating system as the thermal source of pyrolysis reactor, its
Heating module institute making alive can be with precise control, and as a result of Electric heating, heating rate can realize precise control, from
And realize efficient stable heat supply;Additionally, electric heating system links together with pyrolysis reactor constitutes electronic waste cracking dress
Put, realize material of being back to back, material by continuous quick fully cracking and deep pyrolytic electronic waste, reclaim secondary money
Source recycles, the function such as energy-efficient.
According to embodiment of the present utility model, described oil gas vent pipe one end is located at the outside of the reactor shell, with
The inlet end of the indirect heat exchanger is connected, and the other end stretched into and be connected with the shaped spiral housing inside the reactor shell, uses
The indirect heat exchanger is entered by the oil gas vent pipe in the pyrolysis gas and tar for making to be produced inside the shaped spiral housing
Carry out refrigerated separation;Described pyrolysis gas inlet tube one end is located at the outside of the reactor shell, with the indirect heat exchanger
Outlet side is connected, and the other end stretched into and be connected with the shaped spiral housing inside the reactor shell, for making to be changed indirectly through described
Pyrolysis gas after hot device is separated are cracked again by the pyrolysis gas inlet tube into the inside of the shaped spiral housing.
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, cracking gas outlet and slag charge outlet, and the material inlet is located at the shaped spiral housing upper left quarter, the cracking
Gas outlet is located at the shaped spiral housing upper right quarter, and the slag charge outlet is located at the shaped spiral housing right lower quadrant.
According to embodiment of the present utility model, the propulsion spiral is located inside the shaped spiral housing, and the material
Propulsion spiral includes helical axis and helical blade, and the helical blade is fixed on the helical axis and is arranged to and the spiral shell
Spin axis is rotated coaxially, and the helical axis stretches out the shaped spiral housing in the material inlet side, and is connected with motor, the spiral shell
The length of vane piece is identical with the shaped spiral housing.
According to embodiment of the present utility model, the right lower quadrant of the indirect heat exchanger is provided with tar outlet, logical for discharging
The tar crossed after the indirect heat exchanger is separated.
According to embodiment of the present utility model, the running temperature of the electronic waste cracking reactor is 600-1050 DEG C,
And the heating module is divided at least threeth area in the longitudinal direction, and can respectively control the programming rate in each area.
According to embodiment of the present utility model, what the heating module was divided into the longitudinal direction divides into an area, 2nd area
With 3rd area, wherein, area's temperature be 600-750 DEG C, heating rate be 40-80 DEG C/min, two area's temperature be 750-900 DEG C, rise
Warm speed is 30-60 DEG C/min, and three area's temperature are 900-1050 DEG C, and heating rate is 20-60 DEG C/min, the oil gas vent pipe
Positioned at 2nd area, the pyrolysis gas inlet tube is located at 3rd area.
According to embodiment of the present utility model, the heating module includes fibre module, heating wire and binding post, the fibre
Dimension module is semicircular ring shape, and the annulus inner ring is provided with groove along inwall circumferencial direction, and the heating wire is twined in a spiral form
It is wound on the groove, described binding post one end is connected with the two ends of heating wire respectively through the fibre module, the wiring
The other end of post is connected with described device circuit.
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 reactor shell is filled with insulation material, the thermal insulating material
Material is heat-preservation cotton and asbestos board, and heat-preservation cotton filling needs compacting, to ensure heat insulating ability.
The utility model at least has the advantages that:The device can realize material of being back to back, and material is anti-in pyrolysis
Answer in device and be tiled, contacted with shaped spiral housing fully, 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
The function of being advanced in pyrolysis;The high-temperature product for producing is pyrolyzed simultaneously isolates tar and pyrolysis by being able to after indirect heat exchanger
Gas, the pyrolysis gas after separation are re-introduced into the 3rd module and are cracked by pyrolysis gas import, and the cracking gas of generation is arranged
Go out to collect, the slag charge after cracking is exported from slag charge and discharged;And by the use of electric heating system as the thermal source of pyrolysis reactor, it adds
Thermal modules institute making alive can be with precise control, and as a result of Electric heating, heating rate can realize precise control, so that
Realize efficient stable heat supply;Additionally, electric heating system links together with pyrolysis reactor constitutes electronic waste cracker,
Material of being back to back, material are realized by continuous quick fully cracking and deep pyrolytic electronic waste, secondary resource is reclaimed
Recycle, the function such as energy-efficient.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model electronic waste cracker.
Fig. 2 is the heating module structural representation of the utility model electronic waste cracker.
Fig. 3 is the heating module top view of the utility model electronic waste cracker.
Wherein, spiral 10, material inlet 11, oil gas vent pipe 12, indirect heat exchanger 13, tar outlet 14, pyrolysis are advanced
Gas inlet tube 15, reactor shell 16, shaped spiral housing 17, cracking gas outlet 18, slag charge outlet 19, helical axis 20, helical blade
21, motor 22, insulation material 23, insulating barrier 24, area's heating module 25, two area's heating modules 26, three-zone heating module 27 is fine
Dimension module 28, heating wire 29, binding post 30.
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 proposes a kind of electronic waste cracker, according to embodiment of the present utility model, Fig. 1 is this reality
With the structural representation of novel electron garbage cracking device, shown in reference picture 1, the device includes:Electronic waste cracking reactor
And electric heating system, wherein, the electronic waste cracking reactor includes:Material cracking component, reactor shell 16 and indirectly
Heat exchanger 13, wherein, insulation material 23 is filled with the inside of the reactor shell, the specific species of affiliated insulation material is not
It is restricted, as long as high-efficiency insulated effect can be played, according to some embodiments of the present utility model, the utility model institute
Insulation material preferably heat-preservation cotton and asbestos board are stated, and heat-preservation cotton filling needs compacting, it is described for reducing to ensure heat insulating ability
The radiation loss of reactor wall.
According to embodiment of the present utility model, shown in reference picture 1, described oil gas vent pipe one end is located at the reactor enclosure
The outside of body, the inlet end with the indirect heat exchanger is connected, the other end stretch into inside the reactor shell with the spiral
Housing is connected, and the pyrolysis gas and tar for making to be produced inside the shaped spiral housing enter described by the oil gas vent pipe
Indirect heat exchanger carries out refrigerated separation;Described pyrolysis gas inlet tube one end is located at the outside of the reactor shell, between described
Connect heat exchanger outlet side be connected, the other end stretched into and be connected with the shaped spiral housing inside the reactor shell, for make through
Pyrolysis gas after the indirect heat exchanger is separated enter again by the pyrolysis gas inlet tube into the inside of the shaped spiral housing
Row cracking.
According to embodiment of the present utility model, shown in reference picture 1, the indirect heat exchanger includes:Inlet end, recirculated water enter
Mouth, circulating water outlet, outlet side and tar outlet 14, the indirect heat exchanger are located at the outside of the reactor shell, and
The inlet end of the indirect heat exchanger is connected with the oil gas vent pipe 12 in the middle part of the reactor shell;The recirculated water enters
Mouth and circulating water outlet are located on the indirect heat exchanger, and normal-temperature water enters the indirect heat exchange by the circulating water intake
Device, lowers the temperature through the normal-temperature water from the high-temperature oil gas of oil gas vent pipe discharge and separates, and isolated pyrolysis gas enter institute
Pyrolysis gas inlet tube is stated, normal-temperature water is raised by temperature after the high temperature pyrolysis gas, discharged from the circulating water outlet, fully
Using thermal source, the high-temperature water of discharge is available for other purposes to use;The outlet side and the heat being located in the middle part of the reactor shell
Inlet tube 15 of venting one's spleen is connected, and for making the tar in pyrolysis gas and pyrolysis gas carry out refrigerated separation, the pyrolysis gas are through the warm
Inlet tube of venting one's spleen is again introduced into being cracked in the cracker;Tar outlet is located at the right lower quadrant of the indirect heat exchanger,
For discharging the tar after the indirect heat exchanger is separated.
According to embodiment of the present utility model, the product liquid tar can be from the tar outlet of the indirect heat exchanger
Recovery is obtained, and is important with phenol and its containing based on other functional group's aromatic compounds, the aromatic compound containing phenyl ring
Industrial chemicals;Comprising the hydro carbons of below the C4 such as hydrogen, methane, carbon monoxide, ethane, propane in the gaseous product pyrolysis gas
Compound, the calorific value that obtains gas products higher, the high-temperature gas product enters into indirect heat exchanger quilt through oil gas vent pipe
When being cooled to less than 40 DEG C, product liquid tar and gaseous product pyrolysis gas are separated, and pyrolysis gas enter pyrolysis gas after separation
Import, carries out further Pintsch process, produces cracking gas.
According to embodiment of the present utility model, shown in reference picture 1, the material cracking component is across the reactor shell
Both sides, and the material cracking component the exposed outside in the reactor shell in two ends, the material cracking
Component includes shaped spiral housing 17 and propulsion spiral 10, and the shaped spiral housing is from the reactor shell side along the reactor enclosure
Intracoelomic cavity extends through the opposite side of the reactor shell, and two ends of the shaped spiral housing are exposed in the reactor enclosure
The outside of body so that form confined space between the reactor shell and the shaped spiral housing, the spiral shell in confined space
Rotation housing outer wrapping insulating barrier 24, the insulating barrier outer wrapping installs the heating module;Wherein, the shaped spiral housing is specific
Material is unrestricted, if can fire resistant anticorrosive, according to some embodiments of the present utility model, the utility model institute
State shaped spiral housing and be preferably heat-resisting steel sheel, thickness is preferably 5-8mm, and exposed described in the reactor enclosure external body
Material inlet 11, cracking gas outlet 18 and slag charge outlet 19 are provided with shaped spiral housing, and the material inlet is positioned at described
Shaped spiral housing upper left quarter, the cracking gas outlet is located at the shaped spiral housing upper right quarter, and the slag charge outlet is located at the spiral
Housing right lower quadrant, when electronic waste material is pyrolyzed from the material inlet into the reactor, high-temperature oil gas are through described
Oil gas vent pipe enters indirect heat exchanger cooling and separates, and isolated tar is discharged from the tar outlet, separated
To pyrolysis gas cracked again into described device from the pyrolysis gas inlet tube, crack the cracked gas for producing from described
Cracking gas outlet discharge, the solid slag of generation is exported from the slag charge discharges.
According to embodiment of the present utility model, shown in reference picture 1, the propulsion spiral is located inside the shaped spiral housing,
And the material propulsion spiral includes helical axis 20 and helical blade 21, and the helical blade is fixed on the helical axis simultaneously
It is arranged to be rotated coaxially with the helical axis, the helical axis stretches out the shaped spiral housing in the material inlet side, and
It is connected with motor 22, the length of the helical blade is identical with the shaped spiral housing, the propulsion spiral is dynamic in outside motor belt motor
Under enter into after the reactor, be gradually pyrolyzed with the rising of temperature with certain rotational speed, the material, while
It is advanced to, until be pyrolyzed at oil gas vent pipe lower section finishing, is pyrolyzed the pyrolysis gas for producing between oil gas vent entrance
Heat exchanger is connect, being re-introduced into pyrolysis gas inlet tube by pyrolysis gas after separation is cracked, and the cracking gas of generation is discharged receipts
Collection, the slag charge after cracking is exported from slag charge discharges.
According to embodiment of the present utility model, shown in reference picture 1, the electric heating system is located at the interior of the confined space
Portion, including:For providing the heating module of thermal source and for ensureing that the heating wire in the heating module is pyrolyzed with the material
The insulating barrier of the shaped spiral housing insulation in component, the insulating barrier is located at the appearance of the shaped spiral housing inside the confined space
Face, the heating module is located at the outer surface of the insulating barrier;The specific material of the insulating barrier is unrestricted, as long as in not shadow
On the premise of ringing present apparatus normal operation, the effect with insulation, according to some embodiments, this practicality of the present utility model
The new insulating barrier is preferably mica tape, and mounting means is the outer surface that winding is wrapped in the shaped spiral housing.
According to embodiment of the present utility model, the running temperature of the electronic waste cracking reactor is 600-1050 DEG C,
Shown in reference picture 1, the heating module is divided at least threeth area in the longitudinal direction, and can respectively control the intensification speed in each area
Degree, it is preferred that be divided into area's heating module 25, two area's heating modules 26 and three-zone heating module 27, be respectively arranged in reactor
Inside the confined space that housing is formed with shaped spiral housing, and installation placed in the middle along its length, wherein, area's temperature is 600-750
DEG C, heating rate is 40-80 DEG C/min, and two area's temperature are 750-900 DEG C, and heating rate is 30-60 DEG C/min, and three area's temperature are
900-1050 DEG C, heating rate is 20-60 DEG C/min, it is furthermore preferred that the oil gas vent pipe is located at 2nd area, the pyrolysis
Gas inlet tube is located at 3rd area, and the propulsion spiral is entered into instead in the case where outside motor belt motor is dynamic with certain rotational speed, material
Answer after device, be gradually pyrolyzed with the rising of temperature, while be advanced to, until being pyrolyzed at two area's heating modules
Finish, be pyrolyzed the pyrolysis gas for producing and enter indirect heat exchanger from oil gas vent, 3rd area are re-introduced into by pyrolysis gas after separation
Module is cracked, and the cracking gas of generation is discharged collection.
According to embodiment of the present utility model, to the heating module electrified regulation in an above-mentioned area, 2nd area and 3rd area, described one
The heating module in area, 2nd area and 3rd area is brought rapidly up under certain voltage effect, is given by the heating module to three areas
Determine the control of voltage, adjust rational heating rate, at 600-750 DEG C, heating rate is set area's heating module control temperature
It is 40-80 DEG C/min, two area's heating modules control temperature at 750-900 DEG C, and heating rate is set to 30-60 DEG C/min, 3rd area
Heating module controls temperature at 900-1050 DEG C, and heating rate is set to 20-60 DEG C/min, after temperature enters setting value, leads to
PID control temperature is crossed, the temperature of technological requirement is realized, temperature error is ± 5 DEG C.
According to embodiment of the present utility model, Fig. 2 is the heating module structure of the utility model electronic waste cracker
Schematic diagram, Fig. 3 is the heating module top view of the utility model electronic waste cracker, described shown in reference picture 2 and Fig. 3
Heating module includes fibre module 28, heating wire 29 and binding post 30, and the concrete shape of the fibre module is unrestricted, can be with
It is square, taper, circle or annular, according to some embodiments of the present utility model, the utility model is preferably semicircular ring
Shape, occupies little space, and can be filled with the temperature for setting multiple fibre modules, improving in the reactor as much as possible
Divide pyrolysis the electronic waste material, the annulus inner ring is provided with groove along inwall circumferencial direction, and the heating wire is with spirality
Formula is wrapped on the groove, and described binding post one end is connected with the two ends of heating wire respectively through the fibre module, described
The other end of binding post is connected with described device circuit.
The utility model realizes the material cracking process of electronic waste cracker by below step:
First, electric heating system heating process:To three heating module electrified regulations in area, heating module is in certain voltage
It is brought rapidly up under effect, by the control to the given voltage of three area's heating modules, adjusts rational heating rate, area heating
Module controls temperature at 600-750 DEG C, and heating rate is set to 40-80 DEG C/min, and two area's heating modules control temperature in 750-
900 DEG C, heating rate is set to 30-60 DEG C/min, and three-zone heating module controls temperature at 900-1050 DEG C, and heating rate is set
It is 20-60 DEG C/min.After temperature enters setting value, by PID control temperature, the temperature of technological requirement, temperature error are realized
It is ± 5 DEG C.
Second, material pyrolytic process:After Deng reactor temperature stabilization, shaped spiral housing is heated to 600-900 DEG C, this
When just can be put into material in material inlet, the back that material enters into propulsion spiral moves forward side and is pyrolyzed, while be pyrolyzed producing
Raw high-temperature product is pyrolyzed completely at 2nd areas, from the oil gas vent pipe by isolated after indirect heat exchanger tar and
Pyrolysis gas, the pyrolysis gas after separation are re-introduced into three-zone heating module and are cracked by pyrolysis gas inlet tube, and generation is split
Vent one's spleen and collect discharge from cracking gas outlet, the slag charge after cracking is exported from slag charge and discharged.
Inventor has found, according to the device of the utility model embodiment, is capable of achieving material of being back to back, and material is in pyrolysis
It is tiled in reactor, is contacted with shaped spiral housing fully, high-temperature spiral housing is added 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, and realizes
The function of being advanced in pyrolysis;The high-temperature product for producing is pyrolyzed simultaneously isolates tar and heat by being able to after indirect heat exchanger
Vent one's spleen, the pyrolysis gas after separation are re-introduced into the 3rd module and are cracked by pyrolysis gas import, the cracking gas quilt of generation
Discharge is collected, and the slag charge after cracking is exported from slag charge and discharged;And by the use of electric heating system as the thermal source of pyrolysis reactor, its
Heating module institute making alive can be with precise control, and as a result of Electric heating, heating rate can realize precise control, from
And realize efficient stable heat supply;Additionally, electric heating system links together with pyrolysis reactor constitutes electronic waste cracking dress
Put, realize material of being back to back, material by continuous quick fully cracking and deep pyrolytic electronic waste, reclaim secondary money
Source recycles, the function such as energy-efficient.
Embodiment:Electric heating system uses electric-heating-wire-heating, and a diameter of 1.4mm of heating wire, overall length is 15m, electronic waste
Material(Predominantly circuit board, electric wire and keyboard)It is made into the particle of 3-6mm, inlet feed amount is 1kg/h, and what is finally given splits
Solution slag charge is 0.5kg/h, and the cracking gas of generation is 0.25 Nm3/ h, the tar 0.3kg/h of generation, realizes thing of being back to back
Material, in cracking process, the module temperature in three areas is kept at 650 DEG C, 850 DEG C, 1000 DEG C, and thermal source stability is fine.
Cracking gas chemical examination composition is as follows:
The electronic waste pyrolysis gas composition of table 1
Title |
|
|
|
|
|
CO |
Content (%) |
31.2 |
8.4 |
1.2 |
8.5 |
24.3 |
26.4 |
Solid residue after cracking is detected, it is found that main component is the carbon residue and metal of not cleavable, metal
Mainly include copper, nickel and iron, do not contain the composition of the cleavables such as resin and glass fibre, lytic effect is fine.
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.