CN205570444U - Adjustable multistage disconnect -type selection powder machine - Google Patents

Adjustable multistage disconnect -type selection powder machine Download PDF

Info

Publication number
CN205570444U
CN205570444U CN201521055595.7U CN201521055595U CN205570444U CN 205570444 U CN205570444 U CN 205570444U CN 201521055595 U CN201521055595 U CN 201521055595U CN 205570444 U CN205570444 U CN 205570444U
Authority
CN
China
Prior art keywords
bearing
semi
conveyer device
housing
multiple stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201521055595.7U
Other languages
Chinese (zh)
Inventor
胡泽武
胡其军
严万国
代建新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd
Loesche Shanghai Co Ltd
Original Assignee
JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd
Loesche Shanghai Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd, Loesche Shanghai Co Ltd filed Critical JIANGSU LINGYANG CEMENT ENGINEERING TECHNOLOGY Co Ltd
Priority to CN201521055595.7U priority Critical patent/CN205570444U/en
Application granted granted Critical
Publication of CN205570444U publication Critical patent/CN205570444U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

The utility model provides an adjustable multistage disconnect -type selection powder machine which characterized in that: it includes feed conduit device (1), bearing assembly (2), dynamic rotor (3), multistage separation particle diameter governing system (4), multistage separation conveyor (5), transmission (6) and casing (7), the utility model provides an adjustable multistage disconnect -type selection powder machine can fall into the third grade with the grinding product, satisfies the different technology treatment flowsheet demands of grinding system to promote the performance of grinding equipment performance, it can distribute to product fineness at different levels and granule accomplish nimble regulation, can its physics of close check chemical property, improve the product quality, and improve the quick -witted efficiency of selection powder, " crossing the grinding " and " running slightly " phenomenon can not take place, reduce comprehensive economic benefits such as energy consumption. Whole adjustable multistage separation selection powder machine is rational in infrastructure, and the manufacturing of being convenient for moves convenient operation especially, adjusts in a flexible way, and device fabrication operation expense is low.

Description

A kind of scalable multistage separating powder concentrator
Technical field
This utility model material grinding technique field, the most just relates to a kind of scalable machine for multi-class selective separation of powder for cement industry grinding system, it is possible to increase grinding efficiency and Grinding Quality.
Background technology
Currently, grinding technology is widely used in cement industry grinding raw material, grog, electric power and the raw coal of the various quality of coal chemical industry grinding and steel plant's grinding blast-furnace cinder and slag etc..Grinding and to select powder be very important two technological processes in whole grinding process system, it selects powder technology to directly affect whole grinding system efficiency and the key factor of final products quality especially.Grinding the most block or granular raw mill will become more tiny powdery fine particle, the finished product meeting Particle size requirements in the powdered granule that powder will be polished is selected to separate, the size of finished product and particle size distribution are two technical specifications the most crucial, use which kind of powder concentrator technology finally to decide the two technical specification.
Having the powder concentrator that plurality of specifications is different from structure on market, the structure comprised has respective difference.Relevant document also discloses that structure and the feature of various powder concentrator, but this kind of powder concentrator does not the most possess multiple stage separation and selects powder function, the most simply separates finished product and non-finished product, and its end properties can not carry out flexible with product demand.It addition, grinding efficiency is the highest or selects powder to lose efficacy, causes whole grinding system inefficiency, there is grinding phenomenon thus be greatly increased system energy consumption.Some powder concentrator structures are the most numerous and diverse, and manufacture, installation, maintenance are the most inconvenient.
Utility model content
The purpose of this utility model is aiming at existing powder concentrator and cannot be carried out multiple stage separation and select the technological deficiency of powder function, one regulation multistage separating powder concentrator is provided, being carried out multiple stage separation by the graininess granular material mixture of grinding and being delivered in grinding system the function in next PROCESS FOR TREATMENT flow process, significantly high grinding efficiency and Grinding Quality respectively in the range of having different-grain diameter.
Technical scheme
A kind of scalable multistage separating powder concentrator, it is characterised in that: it includes feed pipe device, bearing assembly, dynamic rotor, multiple stage separation particle size adjustment system, multiple stage separation conveyer device, actuating device and housing;Described feed pipe device top is arranged in bearing assembly upper body, and pass downwards bearing assembly and multiple stage separation conveyer device provides decline passway for material, bearing assembly rotor top is connected by bolt pair with actuating device, rotor bottom is connected by bolt pair with dynamic rotor, bearing assembly rotor is formed a connecting link and the moment of torsion of actuating device is transferred to dynamic rotor, bearing assembly static support body is connected with housing by flange, described multiple stage separation particle size adjustment system is fixedly mounted on enclosure interior and is positioned at outside dynamic rotor, multiple stage separation particle size adjustment system forms passage with the multiple stage separation conveyer device being fixed on housing, outside the semi-finished product of screening are delivered to housing.
Beneficial effect
The scalable multistage separating powder concentrator that this utility model provides, it is possible to ground prod is divided into three grades, meets grinding system different process handling process demand, thus promote the performance of milling equipment performance;Product finenesses at different levels and distribution of particles can be accomplished flexible by it, can strictly control its physical and chemical performance, improve product quality, improve powder concentrator efficiency, " crossing grinding " and " running thick " phenomenon will not occur, lower the overall economic efficiencies such as energy consumption.Whole scalable machine for multi-class selective separation of powder is rational in infrastructure, it is simple to processing and manufacturing, runs easy to operate especially, flexible adjustment, and equipment production run maintenance cost is low.
Accompanying drawing explanation
Accompanying drawing 1 is for this utility model embodiment operating diagram;
Accompanying drawing 2 is the H-H sectional view in accompanying drawing 1.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is described further.
Embodiment
As shown in Figure 1, a kind of scalable multistage separating powder concentrator, it is characterised in that: it includes feed pipe device 1, bearing assembly 2, dynamic rotor 3, multiple stage separation particle size adjustment system 4, multiple stage separation conveyer device 5, actuating device 6 and housing 7;Described feed pipe device 1 top is arranged in bearing assembly 2 upper body, and pass downwards bearing assembly 2 and multiple stage separation conveyer device 5 for material offer decline passway, bearing assembly 2 rotor top is connected by bolt pair with actuating device 6, rotor bottom is connected by bolt pair with dynamic rotor 3, bearing assembly 2 rotor is formed a connecting link and the moment of torsion of actuating device 6 is transferred to dynamic rotor 3, bearing assembly 2 static support body is connected with housing 7 by flange, described multiple stage separation particle size adjustment system 4 is fixedly mounted on housing 7 and is internally located at outside dynamic rotor 3, multiple stage separation particle size adjustment system 4 forms passage with the multiple stage separation conveyer device 5 being fixed on housing 7, outside the semi-finished product of screening are delivered to housing 7.
Described feed pipe device 1 is positioned at powder concentrator center, and it comprises feed pipe 101, feed pipe 101
Material is abrasion-proof stainless steel material, and thickness is 8~12mm.
Described bearing block assembly 2 comprises bearing block 200, bearing group 201, bearing seal 202, bearing block overcoat 203 and bearing block inner sleeve 204, described bearing group 201 includes bearing one 201a and bearing two 201b, it is separately mounted to the upper and lower of bearing block 200, bearing group 201 inner ring and outer ring are formed with bearing block inner sleeve 204 and bearing block overcoat 203 respectively and coordinate, and be respectively mounted on the top of bearing one and bearing two bottom bearing seal 202,202 ' avoid Bearing outer dust to enter Bearing inner is countershaft manufactures into damage.
Described bearing group 201 is arranged up and down for vertical, and upper bearing (metal) 201a pattern is angular contact bearing, and lower bearing 201b pattern is deep groove ball bearing, and its pairing use can bear the most dynamic and static load.
Described dynamic rotor 3 be revolving structure and rotating speed adjustable, its speed of gyration is scalable in the 70~165rpm ranges of speeds;
Described multiple stage separation particle size adjustment system 4 has airflow field and dust granules material field water conservancy diversion regulatory function in powder concentrator;
Described multiple stage separation particle size adjustment system 4 is for including for support body and blade, and blade is arranged on support body formation screening and flow-guiding channel;
Described blade is annular blade.
Described multiple stage separation conveyer device 5 comprises final finished device for transporting objects 501, semi-product material Conveyer device 1 and semi-product material conveyer device 2 503, described final finished device for transporting objects 501 is positioned at housing 7 top, semi-product material conveyer device 2 503 is between semi-product material conveyer device 502 and housing 7, it is fixed on housing 7 by support, it is internal that semi-product material conveyer device 1 part is positioned at semi-product material conveyer device 2 503, its transfer passage passes semi-product material conveyer device 2 503 and housing 7, and welds together with housing 7.
Described semi-product material conveyer device 502 is dynamic fluidized induction system;
Described dynamic fluidized induction system includes customizing abnormity ventilation wear-resistance transmission medium layer 502a, high-pressure axial flow fan 502b and tubing 502c, abnormity ventilation wear-resistance transmission medium layer 502a is arranged on the bottom of semi-product material conveyer device 502, upper surface contacts with material, lower surface forms gas channel with lower case, semi-product material conveyer device 502 lower case perforate, formation flow delivery systems is welded with tubing 502c, axial flow blower is arranged on the end of tubing 502c, provides fluidisation power to whole system;
The pressure-air that described high-pressure axial flow fan 502b produces produces dynamic fluidized effect to fine particulate semi-product material.
Described actuating device 6 comprises by converter 601, drives motor 602, driving belt 603, big belt pulley 604, small belt pulley 605 and case 606, described converter 601 is connected with remote control terminal and driving motor 602 respectively, it is transferred to remote control information drive motor 602, drive on motor 602 output shaft equipped with small belt pulley 605, small belt pulley 605 is connected with big belt pulley 604 by driving belt 603, and big belt pulley 604 controls dynamic rotor 3 and turns round.
Work process of the present utility model is: block stock O to be comminuted is entered by powder concentrator feed pipe device 1 and carries out initial grinding in milling equipment M1, by the air-flow possessing certain speed, at different levels material A BC different through preliminary grinding size are entered in powder concentrator from the grinding zone of milling equipment M1 afterwards, be directly entered multiple stage separation particle size adjustment system 4.The outer ring annular plate blade 401 of described multiple stage separation particle size adjustment system 4 carries out primary separation to the multistage particle diameter material entered in powder concentrator, the mixture of the material being separated i.e. final finished material A and semi-product material B enters inner ring annular plate blade 402 and again separates, and is separated remaining material i.e. semi-product material C by outer ring annular plate blade 401 and is entered milling equipment M1 again by grinding by its semi-product material conveyer device 2 503.Enter the final finished material A of inner ring annular plate blade 402 and the mixture of semi-product material B under itself and dynamic rotor 3 synergy, isolate final finished material A and semi-product material B, its final finished material A and air-flow are mixed and are exported gathering dust in technological process to entrance grinding system rear outside powder concentrator by final finished device for transporting objects 501, and semi-product material B is also exported in the technological process entering milling equipment outside powder concentrator by semi-product material conveyer device 502.
Shown in accompanying drawing 2, describe in further detail this utility model is how to accomplish graininess granular material mixture multiple stage separation.Outer ring annular plate blade 401 is made up of incision blade 401a and swirl vane 401b, its combinations of pairs is a pair vane group, space bar device 401c is had between incision blade 401a and swirl vane 401b, its function is isolation incision blade 401a and swirl vane 402b, stops air-flow and material and enters powder concentrator powder-separating area in the middle of the two blade.Air-flow and mixtures of materials at different levels are entered powder concentrator the first powder-separating area XX by the gap between every pair of vane group of outer ring annular plate blade 401, and in this powder-separating area, material bears the effect of airflow buoyancy and self gravitation.Under the drive of air-flow, the coarse granule material of particle diameter maximum falls down after first contacting with incision blade 401a and clash into its surface stall, simultaneously, swirl vane 401b causes the air-flow entered between every pair of vane group gap to produce the eddy current physical effect of WW in regional area and cause coarse granule to fall down under self gravitation effect in the instantaneous stall in this region, other small particle material is brought away from the first powder-separating area XX under airflow buoyancy effect owing to quality is little, i.e. produces the effect of separation.The impact force on its surface of material impacting and time started is controlled thus the particle diameter (μm) of the material that controls to drop or fineness (cm2/g) and total amount (t/h) by the angle [alpha] of regulation incision blade 401a.Controlled vortex flow strength size and eddy region area is come thus in controlled vortex flow region, WW drops the particle diameter (μm) of material or fineness (cm2/g) and total amount (t/h) by the angle beta of regulation swirl vane.
Enter the multistage mixture material of powder concentrator at the mixture AB being isolated semi-product material C, final finished material A and semi-product material B by the first powder-separating area XX, its the latter enters the second powder-separating area YY being made up of the ring-type plate blade of inner ring 402 and dynamic rotor 3, in this powder-separating area, material bears the effect of airflow buoyancy, self gravitation and centrifugal force.Dynamic rotor 3 rotates and the material at the second powder-separating area YY is produced centrifugal action, quality is greatly that the material that particle diameter is big clashes into greatly and first the guide vane 402a of the ring-type plate blade of inner ring 402 and causes stall to drop due to centrifugal force, and other small particle material is brought away from the second powder-separating area YY under airflow buoyancy effect owing to quality is little.Material from the ring-type plate blade of inner ring 402 drops is semi-product material B, and the material being brought away under airflow buoyancy effect is final finished material A.By adjusting the angle γ of inner ring ring-type plate blade 402a and control the impact force on its surface of material impacting and time started thus the particle diameter (μm) of the material that controls to drop or fineness (cm2/g) and total amount (t/h).Control the centrifugal force of different-grain diameter material by adjusting dynamic rotor 3 speed of gyration so that it is the strength clashing into guide vane there are differences, thus control the particle diameter (μm) of material or fineness (cm2/g) and total amount (t/h).
In this utility model embodiment, separately have any different in above-mentioned regulative mode, the buoyancy of material is adjusted by the air quantity (m3/h) of air-flow in powder concentrator, on the premise of powder concentrator mechanical dimension specification is certain, by the first powder-separating area XX and the air quantity of the second powder-separating area YY, the biggest buoyancy producing material of its value is the biggest, vice versa, the logistics of different-grain diameter is brought away from powder-separating area under the effect of airflow buoyancy, and the particle diameter (μm) of such product or fineness (cm2/g) and yield (t/h) just can make flexible.
Structure depicted in the present embodiment institute accompanying drawings, ratio, size etc., the most only in order to coordinate the content disclosed in description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still fall in the range of the technology contents disclosed in this utility model obtains and can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", " middle ", " clockwise ", the term of " counterclockwise " etc., it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, being altered or modified of its relativeness, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.

Claims (7)

1. a scalable multistage separating powder concentrator, it is characterised in that: it includes feed pipe device (1), bearing assembly (2), dynamic rotor (3), multiple stage separation particle size adjustment system (4), multiple stage separation conveyer device (5), actuating device (6) and housing (7);nullDescribed feed pipe device (1) top is arranged in bearing assembly (2) upper body,And pass downwards bearing assembly (2) and multiple stage separation conveyer device (5) for material offer decline passway,Bearing assembly (2) rotor top is connected by bolt pair with actuating device (6),Rotor bottom is connected by bolt pair with dynamic rotor (3),Bearing assembly (2) rotor is formed a connecting link and the moment of torsion of actuating device (6) is transferred to dynamic rotor (3),Bearing assembly (2) static support body is connected with housing (7) by flange,Described multiple stage separation particle size adjustment system (4) is fixedly mounted on housing (7) and is internally located at dynamic rotor (3) outside,Multiple stage separation particle size adjustment system (4) forms passage with the multiple stage separation conveyer device (5) being fixed on housing (7),The semi-finished product of screening are delivered to outside housing (7).
A kind of scalable multistage separating powder concentrator the most according to claim 1, it is characterized in that: described feed pipe device (1) is positioned at powder concentrator center, it comprises feed pipe (101), feed pipe (101) material is abrasion-proof stainless steel material, and thickness is 8~12mm.
nullA kind of scalable multistage separating powder concentrator the most according to claim 1,It is characterized in that: described bearing block assembly (2) comprises bearing block (200),Bearing group (201)、Bearing seal (202,202’)、Bearing block overcoat (203) and bearing block inner sleeve (204),Described bearing group (201) includes bearing one (201a) and bearing two (201b),It is separately mounted to the upper and lower of bearing block (200),Bearing group (201) inner ring and outer ring are formed with bearing block inner sleeve (204) and bearing block overcoat (203) respectively and coordinate,And it is respectively mounted bearing seal (202 on the top of bearing one (201a) and bearing two (201b) bottom,202 ') Bearing inner is countershaft manufactures into damage to avoid Bearing outer dust to enter;
Described bearing group (201) is vertical to arrange up and down, and bearing one (201a) pattern is angular contact bearing, and bearing two (201b) pattern is deep groove ball bearing, and its pairing use can bear the most dynamic and static load.
A kind of scalable multistage separating powder concentrator the most according to claim 1, it is characterised in that: described dynamic rotor (3) be revolving structure and rotating speed adjustable, its speed of gyration is scalable in the 70~165rpm ranges of speeds.
A kind of scalable multistage separating powder concentrator the most according to claim 1, it is characterised in that: described multiple stage separation particle size adjustment system (4) has airflow field and dust granules material field water conservancy diversion regulatory function in powder concentrator;
Described multiple stage separation particle size adjustment system (4) is for including for support body and blade, and blade is arranged on support body formation screening and flow-guiding channel;
Described blade is annular blade.
A kind of scalable multistage separating powder concentrator the most according to claim 1, it is characterized in that: described multiple stage separation conveyer device (5) comprises final finished device for transporting objects (501), semi-product material conveyer device one (502) and semi-product material conveyer device two (503), described final finished device for transporting objects (501) is positioned at housing (7) top, semi-product material conveyer device two (503) is positioned between semi-product material conveyer device (502) and housing (7), it is fixed on housing (7) by support, it is internal that semi-product material conveyer device one (502) part is positioned at semi-product material conveyer device two (503), its transfer passage passes semi-product material conveyer device two (503) and housing (7), and weld together with housing (7);
Described semi-product material conveyer device (502) is dynamic fluidized induction system;
Described dynamic fluidized induction system includes customizing abnormity ventilation wear-resistance transmission medium layer (502a), high-pressure axial flow fan (502b) and tubing (502c), abnormity ventilation wear-resistance transmission medium layer (502a) is arranged on the bottom of semi-product material conveyer device (502), upper surface contacts with material, lower surface forms gas channel with lower case, semi-product material conveyer device (502) lower case perforate, with tubing (502c) fixing formation flow delivery systems, axial flow blower is arranged on the end of tubing 502c, fluidisation power is provided to whole system;
The pressure-air that described high-pressure axial flow fan (502b) produces produces dynamic fluidized effect to fine particulate semi-product material.
A kind of scalable multistage separating powder concentrator the most according to claim 1, it is characterized in that: described actuating device (6) comprises converter (601), drive motor (602), driving belt (603), big belt pulley (604), small belt pulley (605) and case (606), described converter (601) is connected with remote control terminal and driving motor (602) respectively, it is transferred to remote control information drive motor (602), drive on motor (602) output shaft equipped with small belt pulley (605), small belt pulley (605) is connected with big belt pulley (604) by driving belt (603), big belt pulley (604) controls dynamic rotor (3) revolution.
CN201521055595.7U 2015-12-15 2015-12-15 Adjustable multistage disconnect -type selection powder machine Withdrawn - After Issue CN205570444U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201521055595.7U CN205570444U (en) 2015-12-15 2015-12-15 Adjustable multistage disconnect -type selection powder machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201521055595.7U CN205570444U (en) 2015-12-15 2015-12-15 Adjustable multistage disconnect -type selection powder machine

Publications (1)

Publication Number Publication Date
CN205570444U true CN205570444U (en) 2016-09-14

Family

ID=56883045

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201521055595.7U Withdrawn - After Issue CN205570444U (en) 2015-12-15 2015-12-15 Adjustable multistage disconnect -type selection powder machine

Country Status (1)

Country Link
CN (1) CN205570444U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105435906A (en) * 2015-12-15 2016-03-30 莱歇研磨机械制造(上海)有限公司 Adjustable multistage separation type powder selecting machine
CN109622252A (en) * 2019-01-23 2019-04-16 桂林晟兴机械制造有限公司 The efficient powder selector of outer circulation flour mill
CN111278567A (en) * 2017-10-27 2020-06-12 细川密克朗集团股份有限公司 Powder processing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105435906A (en) * 2015-12-15 2016-03-30 莱歇研磨机械制造(上海)有限公司 Adjustable multistage separation type powder selecting machine
CN111278567A (en) * 2017-10-27 2020-06-12 细川密克朗集团股份有限公司 Powder processing device
CN109622252A (en) * 2019-01-23 2019-04-16 桂林晟兴机械制造有限公司 The efficient powder selector of outer circulation flour mill
CN109622252B (en) * 2019-01-23 2024-03-12 桂林晟兴机械制造有限公司 High-efficiency powder selector of external circulation pulverizer

Similar Documents

Publication Publication Date Title
CN105435906B (en) A kind of adjustable multistage separating powder concentrator
CN205340923U (en) Two output mode grind immediately
CN105435905A (en) Double-output-mode vertical mill
CN205570444U (en) Adjustable multistage disconnect -type selection powder machine
CN104984911B (en) A kind of rotor type powder sorter
CN102822355A (en) Preparation method for stainless steel slags and steelworks slags for recovery of metal
CN209109277U (en) A kind of pre-separation bypass wind roller type vertical mill
CN106040405A (en) Pre-grinding vertical mill united semi-finish grinding system with built-in powder concentrator
CN101862699A (en) Semi-finished pre-grinding vertical-milling and ball-milling combined grinding device
CN107913849A (en) A kind of centripetal high-efficient powder concentrator and powder concentrator design method
CN203695194U (en) Efficient slag powder selecting machine
CN105709883A (en) Cement semi-final powder milling vertical milling and ball milling combination system
CN201220218Y (en) Powder concentrator with V-shaped groove fixed guide blade
CN103028473A (en) Uniform-granularity micro-powder preparation system
CN102847586A (en) Air-swept efficient vertical roller mill
CN113680662B (en) Device for recycling industrial waste residue superfine processing
CN108273740A (en) A kind of ultra-large type grader
CN108435370A (en) A kind of ultra micro crusher for Chinese herbal medicine
CN205550427U (en) Half whole grinding of cement grinds and ball -milling combination system immediately
CN210497245U (en) High dispersion vortex powder separator
CN208810266U (en) The crush-grind system of clinker
CN204208656U (en) Medium-speed pulverizer moving-stator blade is in conjunction with separator
CN110124804A (en) ZGM type medium-speed pulverizer vane device
CN202336372U (en) Uniform-granularity micro-powder preparation system
CN101716549A (en) Combined grinding method for difficult-to-grind materials and equipment thereof

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20160914

Effective date of abandoning: 20180227

AV01 Patent right actively abandoned