CN109365108A - A kind of durable type lime stone grinder system - Google Patents
A kind of durable type lime stone grinder system Download PDFInfo
- Publication number
- CN109365108A CN109365108A CN201811432641.9A CN201811432641A CN109365108A CN 109365108 A CN109365108 A CN 109365108A CN 201811432641 A CN201811432641 A CN 201811432641A CN 109365108 A CN109365108 A CN 109365108A
- Authority
- CN
- China
- Prior art keywords
- lime stone
- baffle
- oblique
- vertical duct
- pipeline
- 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- Withdrawn
Links
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 53
- 239000006028 limestone Substances 0.000 title claims abstract description 53
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000011241 protective layer Substances 0.000 claims abstract description 24
- 238000009825 accumulation Methods 0.000 claims abstract description 12
- 230000003139 buffering effect Effects 0.000 claims abstract description 11
- 230000001737 promoting effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 230000007306 turnover Effects 0.000 claims description 17
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 241000406668 Loxodonta cyclotis Species 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G11/00—Chutes
- B65G11/20—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids
- B65G11/206—Auxiliary devices, e.g. for deflecting, controlling speed of, or agitating articles or solids for bulk
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
A kind of durable type lime stone grinder system, including the feed bin for storing raw limestone, it is used for transmission the conveyer of raw limestone, elevator for promoting raw limestone, for caching the buffering chamber of raw limestone, and for the feeder to mill feeding, for raw limestone to be worn into the grinding machine of finished product lime stone, and for being transported the lime stone for wearing into finished product in grinding machine again to the feed back conveyer of elevator, lime stone is conveyed by abrasion-proof pipe between feeder and grinding machine, oblique pipeline one is equipped between elevator and buffering chamber；Accumulation has the free heap for stopping loose unpacked material to be formed because of block piece to fall protective layer on oblique pipeline one and abrasion-proof pipe inner wall.The present invention increases " baffle " or other block pieces in the expects pipe face of material directly contact; block piece intercepts partial material and forms a material protective layer on expects pipe surface; it avoids the material of flowing from directly contacting, rub with expects pipe face, avoids expects pipe surface wear, while reducing repeated work.
Description
Technical field
The invention belongs to material transportation field more particularly to a kind of durable type lime stone grinder systems.
Background technique
There is the transition expects pipe for dissipating material conveying in thermal power plant and part bargh related system, more especially
Position limitation, the biggish place of drop, due to accelerating the material with material directly contact under inertia force and the frictional force effect of material
Pipe surface wear, Welding Repair workload is very big, and in workshop, according to system equipment configuration state, elephant trunk, which inevitably exists, to hang down
The case where straight section, tilting section are combined with each other.
It dissipates in material transportation process, under the action of material inertia force, frictional force, is ground with the expects pipe face of material directly contact
Damage is very fast, and the abrasion material leakage period is even shorter at one month, so that repair and maintenance workload is especially big.Thus how to elephant trunk
Region of interest is rationally and effectively transformed, and the service life for extending elephant trunk to the maximum extent becomes problem in need of immediate treatment.
Current solution is mainly two kinds, one, lining wear-resistant material, extends the wear-out period；Two, pipeline section easy to wear is given
Increase thickness, slows down the material leakage period；Add abrasion section expects pipe thickness and lining wear-resistant material, when inner lining material or the material of increase thickness
After transducer wall's abrasion loses protective effect, secondary replacement inner lining material and tube wall are quite cumbersome, increase difficulty to maintenance.
Summary of the invention
The object of the present invention is to provide a kind of durable type lime stone grinder systems, to solve prior art pipeline wear-resisting property
The problem of difference；And solve the problems, such as that the secondary replacement inner lining material of the prior art and tube wall are cumbersome.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of durable type lime stone grinder system, it is characterised in that: including the feed bin for storing raw limestone, be used for transmission
The conveyer of raw limestone, the elevator for promoting raw limestone, for caching the buffering chamber of raw limestone, with
And for the feeder to mill feeding, for raw limestone to be worn into the grinding machine of finished product lime stone, and for by grinding machine
The lime stone for inside wearing into finished product is transported again to the feed back conveyer of elevator, passes through wear-resistant pipe between the feeder and grinding machine
Road conveys lime stone, and elevator is placed on floor, and oblique pipeline one is equipped between the elevator and buffering chamber；
The oblique pipeline that the abrasion-proof pipe includes vertical duct and is connected to vertical duct, the oblique pipeline one and oblique pipe
Accumulation has the free heap for stopping loose unpacked material to be formed because of block piece to fall protective layer on road inner wall, the free heap fall it is protective layer used in
The impact force that buffering loose unpacked material is impacted to oblique pipeline.
It is further preferred that the vertical duct includes top vertical duct and lower part vertical duct, the top is vertical
Pipeline and lower part vertical duct are fixed by flanged joint, and the lower part vertical duct is equipped with close to the position of flange for delaying
The panel turnover component of lime stone is deposited, the panel turnover component includes turnover panel, scrap (bridge) plate, bearing, rotary shaft, shank of bolt and weight, institute
Turnover panel to be stated to be fixed on the tube wall of rotary shaft opposite side, one edges of boards of turnover panel are fixed with rotary shaft, far from rotary shaft
Edges of boards are against on the lower face of scrap (bridge) plate, on the tube wall for the two sides that two bearings are symmetrically fixed on lower part vertical duct, institute
Rotary shaft both ends are stated across bearing, two shanks of bolt are fixed on the end that rotary shaft both ends pass through bearing, two institutes
It states weight and is fixed on two ends of the shank of bolt far from vertical duct.
Further, the block piece be the oblique inner wall of the pipe on uniform intervals setting baffle, the baffle with
Oblique inner wall of the pipe is vertically arranged, and the baffle and the accumulation of oblique inner wall of the pipe have loose unpacked material to form free heap to fall protective layer.
Further, spacing L of the baffle away from vertical duct with oblique pipeline connecting node distance L and adjacent screen
Equal length.
Further, the L=h × tan θ, wherein h is the height of baffle, and ∠ θ is the material heap that free heap falls protective layer
The angle in product face and baffle.
Further, the barrier width is identical as oblique duct width.
Further, h >=50mm of the baffle.
Further, the Weir Plate Thickness is 5~20mm.
In addition, the block piece is horizontal tube wall above the tube wall of oblique pipeline lower part, the horizontal tube wall and perpendicular
Square barrier is connected into the vertical tube wall of pipeline, the loose unpacked material, which is deposited in square barrier, forms free heap
Fall protective layer.
It is further preferred that it is inclined-plane towards leftward or rightward right angled triangle that the free heap, which falls protective layer cross sectional shape,.
Compared with prior art the invention has the characteristics that and the utility model has the advantages that
The present invention increases " baffle " or other block pieces in the expects pipe face of material directly contact, and block piece intercepts partial material and exists
Expects pipe surface forms a material protective layer, when material transportation, the material of flowing is avoided directly to contact, rub with expects pipe face,
Expects pipe surface wear is avoided, while reducing repeated work, reduces cost.
Block piece appropriate is added in invention simultaneously in the pipeline of entire grinder system, extends the service life of pipeline.
The present invention has the characteristics that safety, is applicable in, and has good promotion and practical value, and can produce after extensive popularization and application
Raw good economic benefit.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of durable type lime stone grinder system of the present invention；
Fig. 2 is the structural schematic diagram of oblique pipeline embodiment one of the present invention；
Fig. 3 is the structural schematic diagram of oblique pipeline embodiment two of the present invention；
Fig. 4 is the position relationship structural diagram that free heap of the present invention falls the angle that protective layer is related to；
Fig. 5 is the position relationship structural diagram of bearing of the present invention and rotary shaft；
Fig. 6 is the position relationship structural diagram of scrap (bridge) plate and turnover panel of the present invention.
Appended drawing reference: 1- feed bin；2- conveyer；3- elevator；4- buffering chamber；5- grinding machine；6- feeder；7- grinding machine；8-
Feed back conveyer；9- floor；10- vertical duct；The top 101- vertical duct；The lower part 102- vertical duct；The oblique pipeline of 11-；
12- baffle；The free heap of 13- falls protective layer；The horizontal tube wall of 14-；15- flange；16- turnover panel；17- scrap (bridge) plate；18- bearing；19- rotation
Shaft bar；20- shank of bolt；21- weight；The oblique pipeline one of 22-.
Specific embodiment
For realize the present invention technological means, character of innovation, reach purpose and effect is easy to understand, below to
Invention further illustrates.
The embodiment recorded herein is specific specific embodiment of the invention, for illustrating design of the invention,
Be it is explanatory and illustrative, should not be construed as the limitation to embodiment of the present invention and the scope of the invention.Except what is recorded herein
Outside embodiment, those skilled in the art can also based on the claim of this application book and specification disclosure of that using aobvious and
The other technical solutions being clear to, these technical solutions include using any obvious to making for the embodiment recorded herein
The technical solution of substitutions and modifications.
A kind of durable type lime stone grinder system is used for as shown in Figure 1, including the feed bin 1 for storing raw limestone
Transmit the conveyer 2 of raw limestone, the elevator 3 for promoting raw limestone, for caching the slow of raw limestone
Storage 4, and for the feeder 6 to 5 feeding of grinding machine, for raw limestone to be worn into the grinding machine 7 of finished product lime stone, and
For being transported the lime stone for wearing into finished product in grinding machine 5 again to the feed back conveyer 8 of elevator 3, feeder 6 and grinding machine 5 it
Between lime stone conveyed by abrasion-proof pipe, elevator 3 is placed on floor 9, and oblique pipe is equipped between elevator 3 and buffering chamber 4
Road 1；
Abrasion-proof pipe includes vertical duct 10 and the oblique pipeline 11 that is connected to vertical duct 10, oblique pipeline 1 and oblique pipe
Accumulation has the free heap for stopping loose unpacked material to be formed because of block piece to fall protective layer 13 on 11 inner wall of road, and free heap falls the use of protective layer 13
In the impact force that buffering loose unpacked material is impacted to oblique pipeline 11.
As shown in fig. 6, vertical duct 10 includes top vertical duct 101 and lower part vertical duct 102, top vertical duct
101 and lower part vertical duct 102 be connected and fixed by flange 15, lower part vertical duct 102 is equipped with close to the position of flange 15
For caching the panel turnover component of lime stone, as it can be seen in figures 5 and 6, panel turnover component includes turnover panel 16, scrap (bridge) plate 17, bearing 18, rotation
Shaft 19, shank of bolt 20 and weight 21, turnover panel 16 are fixed on the tube wall of 19 opposite side of rotary shaft, 16 1 edges of boards of turnover panel and rotation
Shaft 19 is fixed, and the edges of boards far from rotary shaft 19 are against on the lower face of scrap (bridge) plate 17, and two bearings 18 are symmetrically fixed on down
On the tube wall of the two sides of portion's vertical duct 102,19 both ends of rotary shaft pass through bearing 18, and two shanks of bolt 20 are fixed on rotary shaft
19 both ends of bar pass through the end of bearing 18, and two weights 21 are fixed on two ends of the shank of bolt 20 far from vertical duct 10.
As shown in Fig. 2, block piece is the baffle 12 of uniform intervals setting on oblique 11 inner wall of pipeline, baffle 12 and oblique pipe
11 inner wall of road is vertically arranged, and baffle 12 and the accumulation of oblique 11 inner wall of pipeline have loose unpacked material to form free heap to fall protective layer 13.
Spacing L length of the baffle 12 away from vertical duct 10 with oblique 11 connecting node of pipeline, 6 distance L and adjacent screen 12
It is equal.L=h × tan θ, wherein h is the height of baffle 12, and ∠ θ is material accumulation face and the baffle 12 that free heap falls protective layer 13
Angle, 12 width of baffle and oblique pipeline 11 are of same size, h >=50mm of baffle 12, baffle 12 with a thickness of 5~20mm,
In, h is the height of baffle 3, as shown in figure 4, ∠ θ is that free heap falls the material accumulation face of protective layer 4 and the angle of baffle 3, such as
Shown in Fig. 3, ∠ θ=(90 ° of+∠ b- ∠ a), ∠ b are to dissipate material accumulation angle (according to conveying medium according to common material accumulation angle
Selection), ∠ a is that live emission of baiting chute and horizontal plane install angle；
As shown in figure 3, block piece is horizontal tube wall 14 above oblique 11 lower part tube wall of pipeline, horizontal tube wall 14 with it is vertical
The vertical tube wall of pipeline 10 connects into square barrier, and the loose unpacked material, which is deposited in square barrier, forms free heap
Fall protective layer 13.It is inclined-plane towards leftward or rightward right angled triangle that free heap, which falls 13 cross sectional shape of protective layer,
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of durable type lime stone grinder system, it is characterised in that: including the feed bin (1) for storing raw limestone, use
In the conveyer (2) of transmission raw limestone, elevator (3) for promoting raw limestone, for caching lime stone original
The buffering chamber (4) of material, and for the feeder (6) to grinding machine (5) feeding, for raw limestone to be worn into finished product lime stone
Grinding machine (7), and for being transported the lime stone for wearing into finished product in grinding machine (5) again to the feed back conveyer of elevator (3)
(8), lime stone is conveyed by abrasion-proof pipe between the feeder (6) and grinding machine (5), elevator (3) is placed in floor (9)
On, oblique pipeline one (22) is equipped between the elevator (3) and buffering chamber (4)；
The abrasion-proof pipe includes vertical duct (10) and the oblique pipeline (11) being connected to vertical duct (10), the oblique pipe
Accumulation has the free heap for stopping loose unpacked material to be formed because of block piece to fall protective layer on road one (22) and oblique pipeline (11) inner wall
(13), the free heap falls protective layer (13) for buffering the impact force that loose unpacked material is impacted to oblique pipeline (11).
2. a kind of durable type lime stone grinder system as described in claim 1, it is characterised in that: the vertical duct (10) includes
Top vertical duct (101) and lower part vertical duct (102), the top vertical duct (101) and lower part vertical duct (102)
It is connected and fixed by flange (15), the lower part vertical duct (102) is equipped with close to the position of flange (15) for caching stone
The panel turnover component of lime stone, the panel turnover component include turnover panel (16), scrap (bridge) plate (17), bearing (18), rotary shaft (19), bolt
Bar (20) and weight (21), the turnover panel (16) are fixed on the tube wall of rotary shaft (19) opposite side, (16) one plate of turnover panel
Side and rotary shaft (19) are fixed, and the edges of boards far from rotary shaft (19) are against on the lower face of scrap (bridge) plate (17), described in two
On the tube wall for the two sides that bearing (18) is symmetrically fixed on lower part vertical duct (102), rotary shaft (19) both ends pass through axis
It holds (18), two shanks of bolt (20) are fixed on the end that rotary shaft (19) both ends pass through bearing (18), two described heavy
Hammer (21) is fixed on end of two shanks of bolt (20) far from vertical duct (10).
3. a kind of durable type lime stone grinder system as described in claim 1, it is characterised in that: the block piece is described oblique
The baffle (12) that uniform intervals are arranged on pipeline (11) inner wall, the baffle (12) are vertically arranged with oblique pipeline (11) inner wall,
The baffle (12) and the accumulation of oblique pipeline (11) inner wall have loose unpacked material to form free heap to fall protective layer (13).
4. a kind of durable type lime stone grinder system as claimed in claim 3, it is characterised in that: the baffle (12) is away from vertical
The spacing L equal length of pipeline (10) and oblique pipeline (11) connecting node (6) distance L and adjacent screen (12).
5. a kind of durable type lime stone grinder system as claimed in claim 4, it is characterised in that: the L=h × tan θ,
In, h is the height of baffle (12), and ∠ θ is that free heap falls the material accumulation face of protective layer (13) and the angle of baffle (12).
6. a kind of durable type lime stone grinder system as claimed in claim 3, it is characterised in that: the baffle (12) with it is oblique
Pipeline (11) is of same size.
7. a kind of durable type lime stone grinder system as claimed in claim 3, it is characterised in that: the h of the baffle (12) >=
50mm。
8. a kind of durable type lime stone grinder system as claimed in claim 3, it is characterised in that: the baffle (12) with a thickness of
5~20mm.
9. a kind of durable type lime stone grinder system as described in claim 1, it is characterised in that: the block piece is set on oblique
Horizontal tube wall (14) to above the tube wall of pipeline (11) lower part, the vertical tube wall of the horizontal tube wall (14) and vertical duct (10)
Square barrier is connected into, the loose unpacked material is deposited in the free heap of formation in square barrier and falls protective layer (13).
10. a kind of durable type lime stone grinder system as described in claim 1 ~ 9 any one, it is characterised in that: it is described from
Falling protective layer (13) cross sectional shape by heap is inclined-plane towards leftward or rightward right angled triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432641.9A CN109365108A (en) | 2018-11-28 | 2018-11-28 | A kind of durable type lime stone grinder system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811432641.9A CN109365108A (en) | 2018-11-28 | 2018-11-28 | A kind of durable type lime stone grinder system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109365108A true CN109365108A (en) | 2019-02-22 |
Family
ID=65383609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811432641.9A Withdrawn CN109365108A (en) | 2018-11-28 | 2018-11-28 | A kind of durable type lime stone grinder system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109365108A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1102834A (en) * | 1964-02-14 | 1968-02-14 | Westfalia Dinnendahl | Grinding plant for and method of grinding limestone and similar materials |
| CN2056668U (en) * | 1989-10-07 | 1990-05-02 | 胡华轩 | Wear-resistance slide tube for solid materials |
| CN201116212Y (en) * | 2007-11-14 | 2008-09-17 | 贵阳铝镁设计研究院 | Materiel spout bag type buffering device |
| CN201756306U (en) * | 2009-11-04 | 2011-03-09 | 洛阳新安电力集团万基石墨制品有限公司 | Abrasion resistant material guiding chute |
| CN102392899A (en) * | 2011-07-15 | 2012-03-28 | 无锡华光锅炉股份有限公司 | Heavy-hammer type flap valve |
| CN203156942U (en) * | 2013-01-31 | 2013-08-28 | 三一重工股份有限公司 | Sliding pipeline and dry-mixed mortar mixing station |
| CN103672270A (en) * | 2012-09-05 | 2014-03-26 | 朱瑞 | Wear-resisting bend |
| CN204544386U (en) * | 2015-01-29 | 2015-08-12 | 盐城市明悦节能环保技术有限公司 | A kind of mill feeding device |
| CN204602384U (en) * | 2015-01-27 | 2015-09-02 | 苏州日益升建材有限公司 | Slag vertical-mill system |
| CN204672392U (en) * | 2015-03-24 | 2015-09-30 | 无锡商业职业技术学院 | Lime stone abrasive dust High-efficient Production arrangement |
| CN206243895U (en) * | 2016-10-10 | 2017-06-13 | 上海克硫环保科技股份有限公司 | A kind of elephant trunk and the integrated cleaning system of activated coke waste gas |
| CN207655233U (en) * | 2017-11-01 | 2018-07-27 | 广西贺州市科隆粉体有限公司 | Superfine heavy calcium carbonate vertical mill |
| CN209379160U (en) * | 2018-11-28 | 2019-09-13 | 北京国电龙源环保工程有限公司 | A kind of durable type lime stone grinder system |
-
2018
- 2018-11-28 CN CN201811432641.9A patent/CN109365108A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1102834A (en) * | 1964-02-14 | 1968-02-14 | Westfalia Dinnendahl | Grinding plant for and method of grinding limestone and similar materials |
| CN2056668U (en) * | 1989-10-07 | 1990-05-02 | 胡华轩 | Wear-resistance slide tube for solid materials |
| CN201116212Y (en) * | 2007-11-14 | 2008-09-17 | 贵阳铝镁设计研究院 | Materiel spout bag type buffering device |
| CN201756306U (en) * | 2009-11-04 | 2011-03-09 | 洛阳新安电力集团万基石墨制品有限公司 | Abrasion resistant material guiding chute |
| CN102392899A (en) * | 2011-07-15 | 2012-03-28 | 无锡华光锅炉股份有限公司 | Heavy-hammer type flap valve |
| CN103672270A (en) * | 2012-09-05 | 2014-03-26 | 朱瑞 | Wear-resisting bend |
| CN203156942U (en) * | 2013-01-31 | 2013-08-28 | 三一重工股份有限公司 | Sliding pipeline and dry-mixed mortar mixing station |
| CN204602384U (en) * | 2015-01-27 | 2015-09-02 | 苏州日益升建材有限公司 | Slag vertical-mill system |
| CN204544386U (en) * | 2015-01-29 | 2015-08-12 | 盐城市明悦节能环保技术有限公司 | A kind of mill feeding device |
| CN204672392U (en) * | 2015-03-24 | 2015-09-30 | 无锡商业职业技术学院 | Lime stone abrasive dust High-efficient Production arrangement |
| CN206243895U (en) * | 2016-10-10 | 2017-06-13 | 上海克硫环保科技股份有限公司 | A kind of elephant trunk and the integrated cleaning system of activated coke waste gas |
| CN207655233U (en) * | 2017-11-01 | 2018-07-27 | 广西贺州市科隆粉体有限公司 | Superfine heavy calcium carbonate vertical mill |
| CN209379160U (en) * | 2018-11-28 | 2019-09-13 | 北京国电龙源环保工程有限公司 | A kind of durable type lime stone grinder system |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100039 room 901, 9 / F, building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing Applicant after: Guoneng Longyuan environmental protection Co.,Ltd. Address before: 100039 room 911, 1 building, 16 West Fourth Ring Road, Haidian District, Beijing. Applicant before: BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENGINEERING Co.,Ltd. |
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190222 |