A kind of cleaning system with the coagulation cyclone filter backwashed
Technical field
The utility model category technical field of water treatment equipment is related to a kind of efficient purifying system of continuous processing sewage, especially
It is related to a kind of magnetic enhanced flocculation cleaning system with the coagulation cyclone filter backwashed separated with vortex gravity pouring.
Background technology
With the fast development of the mankind, forest, wetland, meadow of natural region etc. are constantly taken by road, square, building etc.
The problems such as generation, and the scale in city is also in continuous expand, Urban Hydrologic, water quality, water resource, becomes increasingly conspicuous.Sewage mainly has
Sanitary sewage, industrial wastewater and initial rainwater.Substantial amounts of research shows that particulate matter is the main load of each pollutant in sewage
Body plays in sewage and adsorbs pollutant early period, the effect of mid-term conveying pollutant and posterior settlement release pollutant, while
Grain object itself is to influence water transparency, the important water quality index of turbidity again.
Compared with developed country, although it is domestic it is progressive to sewage disposal enter the right path, also need to further grope and taste
Examination.The country mainly includes two kinds to the treatment measures of sewage:Filter interception method and natural sedimentation.Filtering interception method passes through people
Work builds some filtration systems, and sewage, which is introduced into filtration system, carries out simple filtration treatment, such as uses different gradation building stones
French drain or perforation concrete filter plate etc. to carry out sewage one simple filtering.It filters interception method and there is filtering intercepting system
The shortcomings of cleaning service is difficult after easily blocking failure and failing.Natural sedimentation arranges sewage by building sewage storage pond
It is made a return journey after entering to storage pond by gravitational settling and decontaminates water pollutant.But there are the taking up a large area of sewage storage pond, people
Work clears up the problems such as difficulty is greatly with cannot continuously run.
Utility model content
In order to solve the separation problem of the above-mentioned dirty water pollutant containing substances such as suspended matter, greasy dirt or floating materials, this
Utility model provides a kind of cleaning system of the coagulation cyclone filter with backwash.Flocculation, vortex, filtering and microorganism are dropped
Solution technical tie-up is applied in sewage-treatment plant, by flocculating, being vortexed with filtering technique come point of pollutant in enhanced sewage
From the pollutant isolated further is degraded by microbial technique and removed, which can significantly remove in sewage
The substances such as suspended matter, greasy dirt, floating material, while the process is considerably reduced to appropriation of land.The utility model solution
Certainly technical solution is used by its technical problem:
A kind of cleaning system with the coagulation cyclone filter backwashed, including magnetic strength flocculation plant and with backwash
The vortex gravity pouring separator of function;Magnetic strength flocculation plant includes water inlet 1, flocculation main body and pharmaceutical supply device, water inlet
Mouthful 1 is located on the side wall of flocculation main body, and pharmaceutical supply device includes 3 drug addition ports being arranged on flocculation body top, and 3
A drug addition port is that magnetic powder adds in mouth 2, inorganic coagulant adds in mouth 3 and organic flocculant adds in mouth 4 respectively;Magnetic powder adds in mouth
2nd, inorganic coagulant adds in mouth 3 and organic flocculant adds in mouth 4 and is arranged sequentially according to water (flow) direction in flocculation main body;Outlet pipe
Road is located on the flocculation main body side wall opposite with water inlet 1;Magnetic powder is, for example, the magnetic powder for including ferroso-ferric oxide;Inorganic coagulant
Can be one or more of mixing of aluminium salt, molysite and calcium chloride;Organic flocculant can be polyacrylamide and its derivative
Wait macromolecule organics;Vortex gravity pouring separator with backwashing function, including shell 5, the biological filter bed of material 16 is vortexed out
The mouth of a river 10 and slag-drip opening 15;The biological filter bed of material 16 is disposed in shell 5, and separator main body is divided into Liang Ge areas
Domain, the region between the biological filter bed of material 16 and shell 5 are backwash inhalant region, and 16 inside of the biological filter bed of material is cyclone filter area;
Backwashing water inlet port 21 is arranged at the top of backwash inhalant region;The outlet conduit of flocculation plant is with the circle with the biological filter bed of material 16
The tangent mode of all bodies is inserted into 16 inner wall of the biological filter bed of material and is fixed;Guide shell 6 is additionally provided in cyclone filter area, current are in biology
Vortex is formed between 6 outer barrel of filter material layer 16 and guide shell, 6 top of guide shell is provided with vortex water outlet 10;Vortex gravity pouring separates
Bottom of device is provided with slag-drip opening 15.
Preferably, magnetic strength flocculation plant is additionally provided with magnetic powder recovery port 25 with respect to the sidewall bottom of water inlet 1;Purification
System further includes magnetic powder recycling equipment, and magnetic powder recycling equipment includes magnetic separator 17 and recirculation conduit 18, magnetic strength
The magnetic powder recovery port 25 for changing flocculation plant connects magnetic separator 17, magnetic separator with the slag-drip opening 15 of vortex gravity pouring separator
17 magnetic powder outlet adds in mouth 2 with magnetic powder by recirculation conduit 18 and connects, and is recycled;Preferred magnetic powder recycling profit
It can be directly connected to equipment with magnetic powder recovery port 25 and slag-drip opening 15, it can also be by transporting equipment by 25 He of magnetic powder recovery port
The sludge that slag-drip opening 15 is discharged is transported to magnetic powder recycling equipment and is operated.
Preferably, the guide shell 6 further includes inner cylinder 8 and outer barrel 9, and guide shell outer barrel 9 is up-small and down-big truncated conical shape,
The angle of round platform busbar and its high line that guide shell outer barrel 9 is formed is less than 10 °, guide shell inner cylinder 8 to be cylindrical and/or
Deflector 12 is additionally provided with inside the vortex gravity pouring separator, the deflector 12 is located at the guide shell 6
Lower section, so as in the 12 deposit collection area 13 formed below of deflector;12 bottom of deflector has to lower surface,
And there is collection mud mouth 14 in the deflector bottom, the pollutant of 5 inner wall of the shell deposition along the deflector 12 to
Lower surface is guided to the collection mud mouth 14, enters deposit collection area 13 through the collection mud mouth 14.
Preferably, magnetic powder adds in mouth 2 and extend into flocculation body top, and inorganic coagulant adds in mouth 3 and extend into flocculation main body
Lower part adds between mouth 2 and inorganic coagulant addition mouth 3 the straight folding for being provided with and being extended downwardly from flocculation body top in magnetic powder
Flowing plate 23;Organic flocculant adds in mouth 4 and extend into flocculation body top;Magnetic strength flocculation plant further includes L-type baffle plate 24, L
The vertical section of type baffle plate 24 is located at inorganic coagulant and adds between mouth and organic flocculant addition mouth.
Preferably, the biological filter bed of material 16 is additionally provided with filtering water outlet 7, and filtering water outlet 7 is located under vortex water outlet 10
Side, 16 inner wall of the biological filter bed of material of the opposite side of backwashing water inlet port 21 simultaneously extends outside separator, preferably in mistake
It filters out the mouth of a river 7 and is additionally provided with filtering outlet valve 22;And/or
The biological filter bed of material 16 includes inside and outside two layers, and internal layer is the little particle biological filter bed of material 19, and outer layer is bulky grain biological filter
The bed of material 20;Preferably, the little particle biological filter bed of material 19 is made of any one or two kinds of in quartz sand, micropore haydite, bulky grain life
Object filter material layer 20 is by any one of zeolite, pelelith, macropore haydite or several mixes.
Preferably, vortex gravity pouring separator further includes total outlet pipe road 11, and total outlet pipe road 11, which is respectively communicated with, to be vortexed out
The mouth of a river 10 and filtering water outlet 7, so that the water after the rainwater and backwash filter of removal pollutant flows through total outlet pipe road
11 discharge;Magnetic strength flocculation plant and vortex gravity pouring separator bottom have respectively to slag-drip opening 15 and magnetic powder recovery port
The surface of 25 directions diagonally downward;And/or
Pharmaceutical supply device further includes automatic charging equipment;The addition of magnetic powder, inorganic coagulant and organic flocculant is equal
It is automatically controlled according to the flow of water;And/or the additional proportion of magnetic powder, inorganic coagulant and organic flocculant is automatic according to water flow
It adjusts.
Preferably, vortex gravity pouring separator is cylindrical tube, and the height of the cylindrical tube is its basal diameter
1.5~3 times.
Preferably, the outlet conduit of flocculation plant is arranged on diagonally downward on the shell 5 of vortex gravity pouring separator, wadding
The outlet conduit of solidifying device and the angle of horizontal plane are less than 30 °.
Preferably, the angle of outlet conduit and horizontal plane is 5 °, 10 ° or 15 °.
Preferably, the round platform busbar and the angle of its high line that guide shell outer barrel 9 is formed are 3 ° or 5 °.
Compared with prior art, the advantageous effect of generation is the utility model:
(1) due to it is flocculated addition enable the system remove most of pollutant in water body (include molecule and
The substance of solubilised state), effluent quality is good;
(2) due to the addition of magnetic powder, flocculation is enhanced so that the flocculating setting time is greatly reduced, so as to carry
Treatment effeciency is risen;
(3) medicament that flocculates is incorporated as being automatically added to, and enormously simplifies the operation operational process of system;
(4) due to the effect of vortex sedimentation so that the separating effect of particulate matter is better than general gravitational settling in water body, into
One step improves the clean-up effect and treatment effeciency of water body;Since vortex gravity pouring separator is arranged in deposit collection area
Side, vortex and gravitational settling are arranged up and down, add the whole height of water cleaning systems, not only increase the purified treatment of water body
Amount, and greatly reduce the floor space of cleaning system;
(5) due to containing one layer of biological filter bed of material on the inner wall of swirl component, the absorption capture effect of filter material layer can be big
Width promotes the clean-up effect of water body, simultaneously because degradation biological on the biological filter bed of material, can further promote effluent quality;
(6) biologic packing material layer is due to the souring of vortex so that biologic packing material layer is not easy to block, and greatly reduces life
The backwash process of object packing layer;
(7) biologic packing material layer is due to the effect of vortex so that the oxygen content in water body increases, this has greatly reinforced biology and has filled out
The degradation of biomembrane on the bed of material, the water body purification effect further promoted;
(8) technique is there are backwashing system, this can greatly promote the service life of biologic packing material layer, since backwash is
One uniform scour process washes away during filler the biomembrane that can maximally retain on biologic packing material layer, while washes away
The sludge come passes through eddy-current system so that the sewage washed away is further purified, last sludgd deposition to device bottom, is led to
Cross draw clearly or other manner discharge.
(9) due to the addition of magnetic powder separation and recovery so that the system has good benefits of environment and economy.
Description of the drawings
Below in conjunction with detailed description of the drawings and examples to the utility model.
Fig. 1 has the schematic front view of the cleaning system of the coagulation cyclone filter of backwash
Fig. 2 has the schematic cross-section of the cleaning system of the coagulation cyclone filter of backwash
In figure:1 water inlet, 2 magnetic powders addition mouth, 3 inorganic coagulants addition mouth, 4 organic flocculants addition mouth, 5 shells, 6
Guide shell, 7 filtering water outlets, 8 inner cylinders, 9 outer barrels, 10 vortex water outlets, 11 total outlet pipe roads, 12 deflectors, 13 deposits are received
Ji Qu, 14 Ji Nikou, 15 slag-drip openings, the 16 biological filter bed of materials, 17 magnetic separators, 18 recirculation conduits, 19 little particle biofilter materials
Layer, the 20 bulky grain biological filter bed of materials, 21 backwashing water inlet ports, 22 filtering outlet valves, 23 straight baffle plates, 24L types folding
Flowing plate, 25 magnetic powder recovery ports.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is described in further detail the technical solution of the utility model.
As shown in Figure 1, 2, a kind of cleaning system with the coagulation cyclone filter backwashed, including magnetic strength flocculation plant
With the vortex gravity pouring separator with backwashing function.
Magnetic strength flocculation plant includes water inlet 1, flocculation main body and pharmaceutical supply device, and water inlet 1 is located at flocculation main body
Side wall on, pharmaceutical supply device includes 3 drug addition ports being arranged on flocculation body top, 3 drug addition ports point
It is not that magnetic powder adds in mouth 2, inorganic coagulant adds in mouth 3 and organic flocculant adds in mouth 4.Magnetic powder adds in mouth 2, inorganic coagulant
It adds in mouth 3 and organic flocculant adds in mouth 4 and is arranged sequentially according to water (flow) direction in flocculation main body.Magnetic powder adds in mouth 2 and extend into
Flocculate body top, and inorganic coagulant adds in mouth 3 and extend into flocculation lower body part, adds in mouth 2 in magnetic powder and inorganic coagulant adds
The straight baffle plate 23 extended downwardly from flocculation body top is provided between entrance 3, the height of straight baffle plate 23 is more than nothing
Machine coagulant stretches into the height of flocculation main body.Organic flocculant adds in mouth 4 and extend into flocculation body top.Magnetic strength flocculation plant
Further include L-type baffle plate 24, the vertical section of L-type baffle plate 24 be located at inorganic coagulant add in mouth and organic flocculant add in mouth it
Between, and vertical section top has certain distance with flocculation body top, for flow direction outlet conduit, outlet conduit is located at wadding
On the solidifying main body side wall opposite with water inlet, the horizontal segment of L-type baffle plate 24 is located at below outlet conduit to be flowed through out with limiting water
Waterpipe flows out.Straight baffle plate 23 and L-type baffle plate are used to limit access and the direction of current, are the mixing of current and medicament
Enough paths and time are provided, blending is more uniform, and flocculation reaction is more abundant.Magnetic powder is added in current first, is follow-up
Flocculation reaction favourable reaction condition is provided.Then sequentially add inorganic coagulant and organic coagulants so that polluted in water
Object can be stage by stage conglomerate one by one, formed floccule body.Magnetic powder is, for example, the magnetic powder for including ferroso-ferric oxide.Inorganic coagulation
Agent can be one or more of mixing of aluminium salt, molysite and calcium chloride.Organic flocculant can be polyacrylamide and its derivative
The macromolecule organics such as object.By the dosing coagulant into water and flocculant, make the particle for being difficult to precipitate in water be aggregated with one another and
Form floccule body.Floccule body has powerful adsorption capacity, can not only adsorb suspended matter, moreover it is possible to absorbed portion bacterium and dissolubility object
Matter, floccule body combine to form the floccule body of bigger with the impurity in water body.Floccule body by suction-operated, volume increase and under
It is heavy, so as to carry out tentatively removing water pollutant.Magnetic powder can be inside enhanced flocculation reaction, greatly improve pollutant sedimentation
Rate.
Pharmaceutical supply device further includes automatic charging equipment, and the addition of magnetic powder, inorganic coagulant and organic flocculant is equal
It is automatically controlled according to the flow of water.In addition, it is contemplated that influence of the size of water velocity to flocculating setting action time, magnetic powder,
The additional proportion of inorganic coagulant and organic flocculant is automatically adjusted also according to water flow, and medicament is added so as to fulfill intelligence,
Which strongly simplifies the operation operating procedure of magnetic strength flocculation plant, not only saved human cost also save operation into
This.
Further, the outlet conduit of magnetic strength flocculation plant is arranged on the shell of vortex gravity pouring separator diagonally downward
On 5, so as to which the floccule body for being conducive to current and being formed smoothly flows to vortex gravity pouring separator, avoid blocking.Preferably,
The angle of outlet conduit and horizontal plane is less than 30 °, it is furthermore preferred that the angle can be 5 °, 10 ° or 15 °.As shown in Fig. 2,
The main body of outlet conduit and vortex gravity pouring separator is circumferentially tangent and is inserted into body interior, and sewage is along separator shell
5 tangential directions enter in main body, form vortex flow.
Vortex gravity pouring separator with backwashing function, including shell 5, the biological filter bed of material 16 is vortexed water outlet 10
With slag-drip opening 15.The biological filter bed of material 16 is disposed in shell 5, and separator main body is divided into two regions, biology
Region between filter material layer 16 and shell 5 is backwash inhalant region, and 16 inside of the biological filter bed of material is cyclone filter area.Backwashing water
Inlet port 21 is arranged at the top of backwash inhalant region.The outlet conduit of flocculation plant is connected to the biological filter bed of material 16 diagonally downward,
It is connected with cyclone filter area.Backwashing water inlet port 21 and outlet conduit are located at separator homonymy.Outlet conduit with biology
The tangent mode of the circumferential body of filter material layer 16 is inserted into 16 inner wall of the biological filter bed of material and is fixed so that current enter in the biological filter bed of material 16
Cyclone filter area formed turbulent state.Guide shell 6 is additionally provided in cyclone filter area, guide shell 6 is located in cyclone filter area
Portion, the corresponding position of outlet conduit.Guide shell 6 is installed to by support device (not shown) inside the biological filter bed of material 16.It leads
Flow cartridge 6 includes inner cylinder 8, outer barrel 9 and vortex water outlet 10.Between the biological filter bed of material 16, guide shell outer barrel 9 and inner cylinder 8 respectively
Annular space is formed, water enters along 16 tangential direction of the biological filter bed of material in cyclone filter area, in the biological filter bed of material 16 and guide shell
Turbulent state is formed between outer barrel 9 and between guide shell outer barrel 9 and inner cylinder 8, the setting of guide shell 6 further increases water and exists
The in vivo centrifugal action of separator master.Under the action of the centrifugal force, the sludge in water body will be separated, and be firstly gathered at biology
Near the inner wall of filter material layer 16, and deposited downwards along 16 inner wall of the biological filter bed of material under the effect of gravity;Remove the water of pollutant
Body is entered the annular space between guide shell outer barrel 9 and inner cylinder 8 by 6 lower openings of guide shell, and vortex is moved to after spiral
Water outlet 10 is discharged.Vortex water outlet 10 is located at one side of 9 top of guide shell outer barrel away from outlet conduit.Guide shell outer barrel 9 is
Up-small and down-big truncated conical shape, so that water body can be carried out in the cyclone filter area of vortex gravity pouring separator under spiral
Drop movement is conducive to the water after separation and is entered through 6 outer barrel lower part of guide shell in the space between guide shell outer barrel and inner cylinder.
Preferably, the angle of the round platform busbar that guide shell outer barrel 9 is formed and its high line is less than 10 °, it is furthermore preferred that the angle can be 3 °
Or 5 °.Guide shell inner cylinder 8 is cylinder so that water body spiral between guide shell inner cylinder 8 and outer barrel 9 flows, and from
Vortex water outlet 10 is discharged.
Deflector 12 is additionally provided with inside cyclone filter area, deflector 12 is located at the lower body part position of 6 lower section of guide shell,
So as to which the cyclone filter area below deflector 12 is further formed deposit collection area 13.12 bottom of deflector has to following table
Face, and have collection mud mouth 14 in deflector bottom, the pollutant of 16 inner wall of biological filter bed of material deposition is along the downward of deflector 12
Surface is guided to collection mud mouth 14, through collecting mud mouth 14 into deposit collection area 13.In deposit collection area 13, the biological filter bed of material 16
Side wall on be additionally provided with slag-drip opening 15, the pollutant for being deposited on deposit collection area 13 is discharged from slag-drip opening 15.
Under the action of the centrifugal, it is gathered in the pollutant near 16 inner wall of the biological filter bed of material and is attracted to the biological filter bed of material 16
In porous structure, in addition, the microorganism in the biological filter bed of material 16 has degradation, and venomous injurant is not discharged to water body,
The clean-up effect of water body can be strengthened significantly.The biological filter bed of material 16 is additionally provided with filtering water outlet 7, and filtering water outlet 7 is located at vortex
10 lower section of water outlet, 16 inner wall of the biological filter bed of material of the opposite side of backwashing water inlet port 21 simultaneously extend outside separator.
Filtering outlet valve 22 is additionally provided in filtering water outlet 7.
Vortex gravity pouring separator further includes total outlet pipe road 11, total outlet pipe road 11 be respectively communicated with vortex water outlet 10 with
Water outlet 7 is filtered, is outwards arranged so that the water after the sewage and backwash filter of removal pollutant flows through total outlet pipe road 11
Go out.
Vortex gravity pouring separator is cylindrical tube, and the height of the cylindrical tube is the 1.5~3 of its basal diameter
Times, it is preferably 2 times or 2.5 times.The long tubular construction causes the separated guide shell of eddy generation to be arranged on deposit collection area
Top, vortex separation and gravitational settling region are arranged up and down, are not only increased the purified treatment amount of water body, and are greatly reduced
The floor space of cleaning system.
The biological filter bed of material 16 includes inside and outside two layers, and internal layer is the little particle biological filter bed of material 19, and outer layer is bulky grain biological filter
The bed of material 20.The little particle biological filter bed of material 19 is made of any one or two kinds of in quartz sand, micropore haydite, the bulky grain biological filter bed of material
20 by any one of zeolite, pelelith, macropore haydite or several mix.
Magnetic strength flocculation plant is additionally provided with magnetic powder recovery port 25 with respect to the sidewall bottom of water inlet 1.Magnetic enhanced flocculation fills
Put has the surface to slag-drip opening 15 and 25 direction of magnetic powder recovery port diagonally downward respectively with vortex gravity pouring separator bottom, has
It is flowed out under the effect of gravity beneficial to sludge.
In addition, the cleaning system of the coagulation cyclone filter with backwash further includes magnetic powder recycling equipment.Magnetic powder returns
Receive includes magnetic separator 17 and recirculation conduit 18, the magnetic powder recovery port 25 and vortex gravity pouring of magnetic strength flocculation plant using equipment
The sludge that the slag-drip opening 15 of separator is discharged separates magnetic powder by magnetic separator 17.The magnetic powder of magnetic separator 17 goes out
Mouth adds in mouth 2 with magnetic powder by recirculation conduit 18 and connects, and the magnetic powder after separation is back to magnetic powder by recirculation conduit 18 and adds
Entrance 2, is recycled.Magnetic powder recycling equipment can be directly connected to magnetic powder recovery port 25 and slag-drip opening 15, also may be used
It is grasped so that the sludge that magnetic powder recovery port 25 and slag-drip opening 15 are discharged is transported to magnetic powder recycling equipment by transporting equipment
Make.By recycling for magnetic powder, the consumption of magnetic powder is greatly saved, there is good energy economy & environment effect.
The utility model additionally provides a kind of purification method of the coagulation cyclone filter with backwash, wads a quilt with cotton including magnetic strengthization
Solidifying step, eddy flow intensive filtration step and backwash step.
Magnetic strength flocculation step includes:By magnetic strength flocculation plant carry out flocculation reaction, by water from flocculation main body into
The mouth of a river 1 is introduced in flocculation plant, and magnetic powder, inorganic flocculating agent and organic flocculant of the sewage successively with addition in flocculation main body mix
It closes, flocculation reaction occurs, the particle for being difficult to precipitate in water is made to be aggregated with one another and form floccule body.Different agents are mixed with sewage
Position and stage differ.Magnetic powder can be inside enhanced flocculation reaction, greatly improve the pollutant rate of settling.By magnetic
The water body of enhanced flocculation process is tangentially directed to vortex gravity pouring separator so that water body along with vortex gravity pouring separator
Circumferential tangent mode enters separator body interior.Eddy flow intensive filtration step includes:Water outlet of the sewage through flocculation plant
The cyclone filter area that pipeline is tangentially limited into the biological filter bed of material 16 forms in cyclone filter area and is vortexed.In cyclone filter area also
Guide shell 6 is provided with, strengthens vortex rotation;Due to the effect of centrifugation, the pollutant carried in water body will be separated, and be gathered
Collection deposits to deposit collection area 13 under the effect of gravity near the inner wall of the biological filter bed of material 16, is discharged by slag-drip opening 15;
The water body of removal pollutant is entered by 6 lower openings of guide shell in guide shell 6, and the vortex water outlet 10 through guide shell 6 is discharged.When
When blockage problem occurs in biologic packing material layer or when running after a certain period of time, backwash step is performed, biology is deposited on to wash away
Dirt in filter material layer 16 improves absorption degradation efficiency;Backwash step includes:By clean water from backwashing water inlet port 21
Backwash inhalant region is introduced, water flows through the biological filter bed of material 16, washes away the dirt in the biological filter bed of material 16, into cyclone filter area,
The water for carrying dirt is then acted on via the cyclonic separation of guide shell 6, and the pollutants such as sludge are deposited to deposit collection area, pass through
Slag-drip opening is discharged.The water of upper strata cleaning is discharged from filtering water outlet 7 after backwash.
Purification method can also include magnetic powder recycling step, the pollutant quilt discharged by magnetic powder recovery port 25 and slag-drip opening 15
Magnetic powder reclaimer is delivered to, magnetic separator 17 separates magnetic powder from pollutant, and is recycled to magnetic powder and adds in mouth 2, into
Row recycling.
The preferred embodiment of the utility model described in detail above, still, the utility model are not limited to above-mentioned reality
Apply the detail in mode, in the range of the technology design of the utility model, can to the technical solution of the utility model into
The a variety of simple variants of row, these simple variants belong to the scope of protection of the utility model.
It is further to note that the specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.