CN1805774A - Oil separator - Google Patents
Oil separator Download PDFInfo
- Publication number
- CN1805774A CN1805774A CN 200580000495 CN200580000495A CN1805774A CN 1805774 A CN1805774 A CN 1805774A CN 200580000495 CN200580000495 CN 200580000495 CN 200580000495 A CN200580000495 A CN 200580000495A CN 1805774 A CN1805774 A CN 1805774A
- Authority
- CN
- China
- Prior art keywords
- separation chamber
- filter
- prime
- coarse
- mesh
- 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.)
- Granted
Links
Landscapes
- Removal Of Floating Material (AREA)
Abstract
When the oil component in water to be treated is passed for separation through two stages, a coarse-graining element (9) in a front stage separation chamber (4) and a coarse-graining element (16) in a rear stage separation chamber (5), occurrence of clogging in the coarse-graining element (16) in the rear stage separation chamber (5) is avoided to improve the rate of separation of oil component. The water to be treated moving from the front stage separation chamber (4) to the rear stage separation chamber (5) is filtered by a filter element in a filter (20), whereby the solid particle component contained in the water to be treated is separated.
Description
Technical field
The present invention relates to a kind of oily-water seperating equipment, be mixed at the oil as the bilge-water of boats and ships under the situation in the processed waters such as waste water, this processed water can be separated into oil content and water.
Background technology
In patent documentation 1 as look-ahead technique; scheme as described below has been proposed; that is: at first; the processed water that will contain oil content imports in the prime separation chamber; and make it by the bigger coarse element of mesh (being to have imperceptible oil droplet is assembled and the materials with function of thickization mutually when the open-work) at this; thus; with thickization of oil droplet and the separation of floating; secondly; to import the back level from the processed water of described prime separation chamber separates indoor; and make it by having the tiny coarse element of mesh than the coarse element of described prime separation chamber at this; thus; thickization of oil droplet and come-up are separated, thereby, with the oil content in the high separation rate separation processed water.
[patent documentation 1] spy opens flat 8-309102 communique
But; in this look-ahead technique; by forming the mesh of the coarse element of the back level separation chamber in described each separation chamber tinyly; can further improve the separation rate of oil content; but also contain solid particles when in processed water, containing oil content; therefore, cause this solid particles composition to stop up the mesh of the tiny coarse element of described back grade mesh.
That is, form the mesh of the coarse element of described back level tinyly, can be contained in the solid particles composition obstruction in the processed water and have circumscribed problem with regard to the mesh of coarse element that this back level is arranged for the separation rate that improves described oil content.
In this case, the obstruction that causes by the solid particles composition that is contained in the described processed water, can can be removed by in advance described processed water being separated, remove the solid particles composition with the filter filtration, but in advance processed water is carried out filtration treatment, will cause the oil content that is contained in this processed water sharply to stop up filter element or enlarge markedly the filtration impedance, thereby significantly hinder the filtration treatment of this processed water.
Summary of the invention
Technical task of the present invention is to provide the oil separator of these problems of releasing.
In order to solve this technical task, the oily-water seperating equipment of technical scheme 1 of the present invention,
Have: the coarse element that built-in mesh is thicker and back level separation chamber that the prime separation chamber that constitutes and built-in mesh constitute than the thin coarse element of the coarse element of described prime separation chamber; The prime separation chamber is supplied with processed water, and then, the processed water that will discharge from described prime separation chamber is sent into level separation chamber, described back;
And, having filter, this filter is by filtering the processed water that arrives level separation chamber, described back from described prime separation chamber, the separable solid particles composition that is contained in the described processed water with filter element.
In addition, the oily-water seperating equipment of technical scheme 2 of the present invention,
The closed container inner-use clapboard of being arranged to longitudinal type is divided into the prime separation chamber on top and the back level separation chamber of bottom; in described prime separation chamber; be provided with the thicker coarse element of mesh; and in described prime separation chamber; make the processed water of the supply port supply of portion from it; behind the coarse element by this prime separation chamber, discharge from the outlet that is provided with thereunder
On the other hand; level is separated indoor in described back; be provided with the mesh coarse element littler than the mesh of the coarse element of described prime separation chamber; and separate indoor in described back level; make the processed water of the inflow entrance inflow of portion from it; behind the coarse element by this back level separation chamber, discharge from the outlet of the below that is arranged on level separation chamber, described back
And then, the filter that is independent of described closed container is equipped with, this filter filters with filter element by the processed water that will arrive the inflow entrance of grade separation chamber, described back from the outlet of described prime separation chamber, separates being contained in the solid particles composition of handling in the water.
(invention effect)
Formation according to described technical scheme 1 record; the processed water that contains oil content and solid particles composition at first is fed in the prime separation chamber; make it by being built in the coarse element in this prime separation chamber; thus; oil droplet in this processed water assembled and become thick, on float over top in the prime separation chamber and separated.
Like this, in the prime separation chamber, separated the processed water of oil content, arrived filter,, filtered, thus, separated, removed the solid particles composition that is contained in this processed water with filter element at this from this prime separation chamber.
Secondly; it is indoor that described processed water flows into back level separation from described filter, makes it by being built in the thin coarse element of mesh of this level separation chamber, back, thus; trickle oil droplet in this processed water assembled mutually and become thick, on float to that the back level is separated indoor top and separated.
In this case; processed water by the thin coarse element of the mesh of back level separation chamber; separate, remove the solid particles composition by described filter in advance, thus, can be suppressed at reliably and mesh take place on the thin coarse element of described mesh by solid particles composition phenomenon of blocking.
On the other hand, owing to be in the state that concentration of oil only is reduced in the oil content that described prime separation chamber is removed with the processed water of the filter element of described filter filtration, therefore, can reduce the mesh that on the filter element of this filter, takes place reliably and stop up, and filter the phenomenon that impedance increases owing to oil content makes owing to oil content.
Yet, described filter, not only by separating solid particles in the processed water separating oil branch that becomes to assign to, and as in embodiment in detail as described in, from experiment as can be known, by between prime separation chamber and back level separation chamber, described filter being set, can improve the separation rate of oil content on the whole than the situation that this filter is not set.
In addition, according to the formation of technical scheme 2 record as can be known, described prime separation chamber and back level separation chamber can be constituted integratedly the closed container of a longitudinal type, therefore, compare the situation that constitutes prime separation chamber and back level separation chamber respectively, small-sized, lightweight can be realized significantly, simultaneously, the area on set ground can be dwindled.
In this case, described filter is independent of described closed container, therefore, can be easy to change the filter element in this filter.
In addition; as described in technical scheme 3; filter element as described filter; use has the filter element of the mesh identical with the coarse element of level separation chamber, described back; perhaps use the also little filter element of mesh that has than the coarse element of level separation chamber, described back; thus, the mesh that can prevent the coarse element of level separation chamber, described back more reliably stops up.
Also have described coarse element, the element that has the element made with the strong so-called hydrophilic material of the interaction of water and make with the strong so-called oil loving material of the interaction of oil.
Therefore; as described in technical scheme 4; constitute by hydrophilic material by coarse element level separation chamber, described back; make and by this coarse element the time, assemble mutually on the non-cohesive coarse element of the oil droplet that becomes thick at this possess hydrophilic property; hightail come-up and separated, thereby can further improve the separation rate of oil content.
In addition, as described in technical scheme 5, also constitute, can further reduce the mesh that on this filter element, takes place owing to oil content reliably and stop up by hydrophilic material by filter element with described filter.
Description of drawings
Fig. 1 is the front view in the vertical section of expression embodiment.
Fig. 2 is the front view in the amplification vertical section of employed filter in said embodiment.
Among the figure: 1-closed container, 3-dividing plate, 4-prime separation chamber; level separation chamber behind the 5-; the supply port of 6-processed water, 9-scalping eye coarse element, the outlet of 10-processed water; the inflow entrance of 14-processed water; 16-narrow mesh coarse element, the outlet of 17-processed water, 12,13,18,19-oil extracts out mouthful; the 20-filter, the 20e-filter element.
The specific embodiment
Below, embodiments of the present invention are described with Fig. 1 and Fig. 2.
In Fig. 1, symbol 1 expression is arranged on the closed container that the cylindrical shape of the longitudinal type on the bottom surface 2 constitutes by setting.
The inside of this closed container 1 is divided into the prime separation chamber 4 on top and the back level separation chamber 5 of bottom by dividing plate 3 is set.
Top in described prime separation chamber 4, be provided with the processed water that is used for to contain oil content and solid particles composition and import supply port 6 in this prime separation chamber 4, by this supply port 6 being arranged on the tangential direction when the axis direction of described closed container 1 is observed, the axis that can make the processed water that imports from this supply port 6 center on described closed container 1 described prime separation chamber 4 in curls up.
In addition; 4 inherences, described prime separation chamber rely on the position of below than described supply port 6; be provided with metallic screen stratum reticulare 7; position below this metallic screen stratum reticulare 7 is provided with the gripper shoe 8 that the center has through hole; below this gripper shoe 8; be provided with and be formed columnar coarse element 9, the processed water that is downward through in the described prime separation chamber 4 is passed through towards the outside from described coarse element 9 its inboards.
Coarse element 9 in this described prime separation chamber 4 is by constituting with the strong so-called hydrophilic fibre of water mutual effect.
And then, in the bottom of described prime separation chamber 4, be the upside of described dividing plate 3, be provided with the outlet 10 of processed water, simultaneously, downside at the top board 11 of this prime separation chamber 4, be provided with oil and extract mouthfuls 12 out, and at the downside of described gripper shoe 8, be provided with oil and extract mouthfuls 13 out with opening with opening.
On the other hand, the top in described back level separation chamber 5 promptly, at the downside of described dividing plate 3, is provided with and is used for the processed water from the outlet 10 of described prime separation chamber 4 is imported the interior inflow entrance 14 in this level separation chamber, back 5.
In addition; in level separation chamber 5, described back; position below leaning on than described inflow entrance 14; be provided with gripper shoe 15 with through hole; below this gripper shoe 15; be provided with and be formed columnar coarse element 16, make by the processed water that flows through down in the level separation chamber, described back 5 and pass through towards the outside from the inboard of described coarse element 16.
Coarse element 16 in this back level separation chamber 5, also identical with coarse element 9 in the described prime separation chamber 4, by constituting with the strong so-called hydrophilic fibre of water mutual effect.
And then the bottom in described back level separation chamber 5 is provided with the outlet 17 of processed water, simultaneously, at the downside of described dividing plate 3, is provided with the oil with opening and extracts mouthfuls 18 out, and at the downside of described gripper shoe 15, is provided with the oil with opening and extracts mouthfuls 19 out.
In this case, the coarse element 9 of described prime separation chamber 4 is arranged to thicker mesh, for example, making its mesh is 50 microns, but the coarse element 16 of level separation chamber 5, described back is arranged to thinner mesh, and for example, making its mesh is 2 microns.
Also have, described each oil is extracted mouth 12,13,18,19 out and is provided with switch valve 12a, 13a, 18a, 19a.
Also have, between the inflow entrance 14 of the outlet 10 of described prime separation chamber 4 and level separation chamber 5, described back, be provided with filter 20, this filter 20 is used to be separated in the solid particles composition that is contained in the filtration in the processed water.
This filter 20 has structure as shown in Figure 2.
Promptly, this filter 20, by main body 20c, can be installed in the columnar filter element 20e on this main body 20c with freely loading and unloading and constitute with freely loading and unloading with the cover case 20f that mode that can airtight whole described filter element 20e can be installed on the described main body 20c by bolt 20d with the inlet 20a that is connected with described outlet 10 and the outlet 20b that is connected with described inflow entrance 14, and make after the processed water that described inlet 20a enters passes through filter element 20e laterally from the inboard, 20b flows out from outlet.
In this case; the filter element 20e of described filter 20 is identical with described two coarse elements 9,16; by constituting with the strong so-called hydrophilic fibre of water mutual effect; and; the mesh of filter element 20e on this filter 20;, be 1～2 micron then for example, make the mesh of filter element 20e be same as or less than the mesh of the coarse element 16 of level separation chamber 5, described back if the mesh of the coarse element 16 of described back level separation chamber 5 is 2 microns.
In this constitutes, the processed water that contains oil content and solid particles composition, at first by supply port 6 to tangent line in direction supplies to described prime separation chamber 4, by in described prime separation chamber 4 rotation, a part that makes larger oil droplet is separated thus to the top of described prime separation chamber 4 come-up.
Secondly, when being built in the metallic sieve 7 of described prime separation chamber 4, the part of oil droplet is assembled and the thick larger oil droplet that turns to mutually, and the top to described prime separation chamber 4 in floats, and separates thus.
Secondly; by being built in the coarse element 9 in the described prime separation chamber 4; thus; oil droplet in this processed water is assembled and thickization mutually; then; non-cohesive on the coarse element 9 that this is made by hydrophilic fibre and speed away, float below top in described prime separation chamber 4 and the gripper shoe 8, separate thus.
Like this, in described prime separation chamber 4, separated the processed water of oil content, arrive filters 20 from the outlet 10 of the bottom of this prime separation chamber 4, and by in this filter 20, filtering by its filter element 20c, be contained in solid particles composition in this processed water separated, remove.
In this case, the filter element 20c of this filter 20 owing to be made of hydrophilic fibre, therefore, can reliably reduce the situation that this filter element 20c is stopped up of adhering to because of oil content.
Secondly; processed water from described filter 20 outflows; flow into level separation chamber 5, back from inflow entrance 14; and, thus, trickle oil droplet in this processed water is assembled mutually and become thick by being built in the coarse element 16 of the narrow mesh in the described back level separation chamber 5; secondly; non-cohesive on the coarse element 16 that this is made by hydrophilic fibre and speed away, float separation thus below top in back level separation chamber 5 and the gripper shoe 15.
Also have, the processed water that concentration of oil reduces by this separation, from outlet 17 discharges of the bottom of level separation chamber 5 afterwards, on the other hand, will on float to below the top, described gripper shoe 8 of described prime separation chamber 4, the top of level separation chamber 5, described back and described gripper shoe 15 below oil content when accumulating suitable amount, extract switch valve 12a, 13a, 18a, the 19a of mouth 12,13,18,19 out by opening its each oil respectively, and be discharged to the outside.
Experiment according to the device that uses described formation, under the situation of the processed water that described prime separation chamber 4 supply concentration of oil is approximately 2400～3400ppm, the concentration of oil of the processed water of discharging from level separation chamber, described back 5 can drop to about 7～9ppm.
Yet, in described experiment, to not carry out under the situation of filtering just inflow entrance 14 importings in level separation chamber 5, described back from the processed water that the outlet 10 of described prime separation chamber 4 is discharged, the concentration of oil of the processed water of discharging from the outlet 17 of level separation chamber 5, described back is dropped to about about 30ppm.
Hence one can see that, though described filter 20 only separates the solid particles composition in the processed water, and does not carry out the separation of oil content, by using this filter 20, can and then reduce the concentration of oil in the processed water.
Also have; described each coarse element 9,16 and described filter element 20c as mentioned above, are not limited only to hydrophilic fiber; can be the fiber that hydrophobic fibre enforcement hydrophily is handled, or also can constitute the hydrophilic diaphragm that has numerous small open-work.
Claims (5)
1. oily-water seperating equipment is characterized in that having:
The coarse element that built-in mesh is thicker and back level separation chamber that the prime separation chamber that constitutes and built-in mesh constitute than the thin coarse element of the coarse element of described prime separation chamber; The prime separation chamber is supplied with processed water, and then, the processed water that will discharge from described prime separation chamber is sent into level separation chamber, described back,
Have filter, this filter is by filtering the processed water that arrives level separation chamber, described back from described prime separation chamber, the separable solid particles composition that is contained in the described processed water with filter element.
2. oily-water seperating equipment is characterized in that:
The closed container inner-use clapboard of being arranged to longitudinal type is divided into the prime separation chamber on top and the back level separation chamber of bottom; in described prime separation chamber; be provided with the thicker coarse element of mesh; and in described prime separation chamber; make the processed water of the supply port supply of portion from it; behind the coarse element by this prime separation chamber, discharge from the outlet that is provided with thereunder
On the other hand; level is separated indoor in described back; be provided with the mesh coarse element littler than the mesh of the coarse element of described prime separation chamber; and separate indoor in described back level; make the processed water of the inflow entrance inflow of portion from it; behind the coarse element by this back level separation chamber, discharge from the outlet of the below that is arranged on level separation chamber, described back
And then, the filter that is independent of described closed container is equipped with, this filter filters with filter element by the processed water that will arrive the inflow entrance of grade separation chamber, described back from the outlet of described prime separation chamber, separates being contained in the solid particles composition of handling in the water.
3. oily-water seperating equipment according to claim 1 and 2; it is characterized in that: the filter element of described filter; be filter element, or have the little filter element of mesh than the coarse element of level separation chamber, described back with mesh identical with the coarse element of level separation chamber, described back.
4. according to any described oily-water seperating equipment in the claim 1 to 3, it is characterized in that: the coarse element of level separation chamber, described back is hydrophilic material.
5. according to any described oily-water seperating equipment in the claim 1 to 4, it is characterized in that: the filter element of described filter is hydrophilic material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP067058/2004 | 2004-03-10 | ||
| JP2004067058 | 2004-03-10 | ||
| JP062408/2005 | 2005-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1805774A true CN1805774A (en) | 2006-07-19 |
| CN100415337C CN100415337C (en) | 2008-09-03 |
Family
ID=36867455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800004957A Active CN100415337C (en) | 2004-03-10 | 2005-03-08 | Oil separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100415337C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310528A (en) * | 2014-08-15 | 2015-01-28 | 上海泽焘环保科技有限公司 | Fully-automatic oil-water separator |
| CN104606947A (en) * | 2014-12-18 | 2015-05-13 | 黄涛 | New oil-water separator |
| CN106573185A (en) * | 2014-07-30 | 2017-04-19 | 三菱综合材料株式会社 | Oil and water separation device and drainage system |
| US10208210B2 (en) | 2014-07-30 | 2019-02-19 | Mitsubishi Materials Corporation | Hydrophilic oil repellent and production method of same, surface coating material, coating film, resin composition, oil-water separation filter material, and porous body |
| CN109553207A (en) * | 2018-12-25 | 2019-04-02 | 浙江大学舟山海洋研究中心 | Leak the oily-water seperating equipment in petroleum recovery process |
| CN109748356A (en) * | 2019-03-19 | 2019-05-14 | 上海人民企业集团水泵有限公司 | Vertical structure oily-water seperating equipment |
| US10294125B2 (en) | 2014-07-30 | 2019-05-21 | Mitsubishi Materials Corporation | Filter medium, method for producing filter medium, water treatment module, and water treatment device |
| US10364360B2 (en) | 2014-07-30 | 2019-07-30 | Mitsubishi Materials Corporation | Surface coating material, coating film, and hydrophilic oil repellent member |
| US10399868B2 (en) | 2014-07-30 | 2019-09-03 | Mitsubishi Materials Corporation | Oil-water separation apparatus and drainage system |
| CN110563201A (en) * | 2019-09-11 | 2019-12-13 | 浙江海洋大学 | marine oil-water separator monitored control system based on big dipper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911324B2 (en) * | 1981-09-29 | 1984-03-14 | 株式会社日本エスア−ルエス | Oil/water separation filter |
| CN2203299Y (en) * | 1994-08-29 | 1995-07-12 | 广州环胜环保科技开发工程联营公司 | Combined sewage treatment device |
-
2005
- 2005-03-08 CN CNB2005800004957A patent/CN100415337C/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10399868B2 (en) | 2014-07-30 | 2019-09-03 | Mitsubishi Materials Corporation | Oil-water separation apparatus and drainage system |
| CN106573185A (en) * | 2014-07-30 | 2017-04-19 | 三菱综合材料株式会社 | Oil and water separation device and drainage system |
| US10208210B2 (en) | 2014-07-30 | 2019-02-19 | Mitsubishi Materials Corporation | Hydrophilic oil repellent and production method of same, surface coating material, coating film, resin composition, oil-water separation filter material, and porous body |
| US10294125B2 (en) | 2014-07-30 | 2019-05-21 | Mitsubishi Materials Corporation | Filter medium, method for producing filter medium, water treatment module, and water treatment device |
| US10364360B2 (en) | 2014-07-30 | 2019-07-30 | Mitsubishi Materials Corporation | Surface coating material, coating film, and hydrophilic oil repellent member |
| CN106573185B (en) * | 2014-07-30 | 2019-09-10 | 三菱综合材料株式会社 | Oily-water seperating equipment, drainage system |
| CN104310528B (en) * | 2014-08-15 | 2016-01-20 | 上海泽焘环保科技有限公司 | Full-automatic oil-water separator |
| CN104310528A (en) * | 2014-08-15 | 2015-01-28 | 上海泽焘环保科技有限公司 | Fully-automatic oil-water separator |
| CN104606947A (en) * | 2014-12-18 | 2015-05-13 | 黄涛 | New oil-water separator |
| CN109553207A (en) * | 2018-12-25 | 2019-04-02 | 浙江大学舟山海洋研究中心 | Leak the oily-water seperating equipment in petroleum recovery process |
| CN109553207B (en) * | 2018-12-25 | 2020-05-05 | 浙江大学舟山海洋研究中心 | Oil-water separation device in leaked oil recovery process |
| CN109748356A (en) * | 2019-03-19 | 2019-05-14 | 上海人民企业集团水泵有限公司 | Vertical structure oily-water seperating equipment |
| CN110563201A (en) * | 2019-09-11 | 2019-12-13 | 浙江海洋大学 | marine oil-water separator monitored control system based on big dipper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100415337C (en) | 2008-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1805774A (en) | Oil separator | |
| EP1007182B1 (en) | Method and plant for treating water incorporating a sedimentation tank and a multilayer filter operating at high speeds | |
| CN102770518B (en) | Oil/water filtration device | |
| KR20090086245A (en) | Sand sedimentation separation apparatus | |
| CN109986720B (en) | Efficient micro-plastic separation device and method | |
| CN1036975C (en) | Reverse washing method of water processing apparatus using floating filtering material | |
| JP4568611B2 (en) | Oil / water separator | |
| CN106423524B (en) | A kind of separation system and method for separating of the broken body raw material of junked-auto | |
| EP1494525B1 (en) | Method for the purification of wastewater in fish farming | |
| WO2002042223A1 (en) | Ballasted floc water treatment installation | |
| JP2004050145A (en) | Apparatus for separating oil/water for bilge containing fine suspended solid | |
| WO2006016378A1 (en) | A novel unique quick continuous self-cleaning stationary yoked pair frustum vacuum sieves solid-liquid separator & liquid recycler | |
| CN208120853U (en) | A kind of high-turbidity sewage purification device | |
| CN2560409Y (en) | Greasy dirt and water separating apparatus | |
| KR101138263B1 (en) | Oil-water separator | |
| CN107250056A (en) | Method and apparatus for the pretreatment using filter cake | |
| KR100512329B1 (en) | A regenerative apparatus of filter sand | |
| CN207713520U (en) | Integrated muddy water sieves cyclonic separation equipment | |
| KR100754247B1 (en) | Apparatus for treating adulteration | |
| CN209076115U (en) | A kind of deep dense device of cone | |
| KR100441620B1 (en) | Waterways purification apparatus and method of an upper-direction flowing type of multi-layers structure filling up a gravel and seramic element | |
| CN207525055U (en) | A kind of trade effluent purifier convenient for removing mud | |
| CN100336739C (en) | Flocculation filter unit | |
| KR102358884B1 (en) | Oil-water separation system using polymer filter | |
| CN108787153A (en) | A kind of super-fine classified equipment of single flow coal slime and stage division |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |