CN111502570A - Vibrating screen for oil exploitation and preparation method thereof - Google Patents
Vibrating screen for oil exploitation and preparation method thereof Download PDFInfo
- Publication number
- CN111502570A CN111502570A CN202010284209.0A CN202010284209A CN111502570A CN 111502570 A CN111502570 A CN 111502570A CN 202010284209 A CN202010284209 A CN 202010284209A CN 111502570 A CN111502570 A CN 111502570A
- Authority
- CN
- China
- Prior art keywords
- screen
- frame
- limiting block
- screen mesh
- fixing mechanism
- 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.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 239000003208 petroleum Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims description 21
- 238000003466 welding Methods 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- -1 polypropylene Polymers 0.000 claims description 7
- 229920001155 polypropylene Polymers 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 3
- 238000005553 drilling Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000004058 oil shale Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D28/00—Producing nets or the like, e.g. meshes, lattices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a vibrating screen for petroleum exploitation and a preparation method thereof, and relates to the technical field of petroleum drilling equipment. The device and the matching process method thereof provided by the invention uniformly prepare the screen mesh into the uniform screen mesh plate, different screen meshes can be replaced according to different requirements in use, the position of the inner screen mesh plate can be fixed through the matching of the sliding plate fixing mechanism, the first limiting block and the second limiting block, the whole vibrating screen mesh is replaced in disorder, and the screen mesh frame are uniformly prepared, so that the device can be perfectly matched with a machine, different machines and additional screen mesh frames are not needed, the alternate use of the three screen meshes can be realized only by configuring the corresponding plate type petroleum vibrating screen mesh, the wave type petroleum vibrating screen mesh and the frame type petroleum vibrating screen mesh module, and the arranged soft rubber pad can weaken the direct collision force between the screen mesh frame and the machine, so that the service life of the screen mesh frame is prolonged, and the device has a certain use prospect.
Description
Technical Field
The invention relates to the technical field of petroleum drilling equipment, in particular to a vibrating screen for petroleum exploitation and a preparation method thereof.
Background
The petroleum vibrating screen is suitable for screening mud materials in drilling operation, has high requirements on a screen of the petroleum vibrating screen due to the particularity of a production environment, can directly influence the process of petroleum exploitation once the screen of the petroleum vibrating screen has problems, and is suitable for being divided into a plate type petroleum vibrating screen, a wave type petroleum vibrating screen and a frame type petroleum vibrating screen.
The three vibrating screen meshes respectively have various benefits and are applicable to drilling effects with different requirements, but if different requirements are needed, the whole vibrating screen mesh needs to be frequently replaced, and part of the vibrating screen meshes are different in size and cannot be matched with corresponding machine equipment, so that different machine screen meshes are needed, time and labor are wasted, and certain resources are wasted.
Disclosure of Invention
The present invention provides a vibrating screen for oil production and a method for manufacturing the same, which can solve the above-mentioned problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the vibrating screen for petroleum exploitation and the preparation method thereof comprise a screen frame, wherein a sliding plate fixing mechanism is fixedly connected to the outer surface of one side of the screen frame, a soft rubber pad is arranged on the outer surface of one side of the sliding plate fixing mechanism, a screen is arranged inside the screen frame, a first limiting block and a second limiting block are arranged between the screen and the screen frame, the first limiting block is located at the upper end of the screen frame, the second limiting block is located at the lower end of the screen frame, a handle is arranged on the outer surface of the upper end of the first limiting block, a plug board opening is formed in the outer surface of the upper end of the sliding plate fixing mechanism, a plug board groove is formed in the middle of the sliding plate fixing mechanism, and a transverse net pushing opening.
Preferably, the outer surface of one side of the handle is fixedly connected with the inner surface of the screen frame, the handle is connected with the screen frame in a welded manner, the outer surface of one side of the sliding plate fixing mechanism is fixedly connected with the outer surface of one side of the screen frame, and the sliding plate fixing mechanism is connected with the screen frame in a welded manner.
Preferably, the length of a stopper and No. two stoppers is the same with screen frame's length, the width of a stopper and No. two stoppers is one-fifteenth of screen frame width, the height of a stopper and No. two stoppers is one-fiftieth of screen frame height, screen frame, a stopper and No. two stoppers integrated into one piece.
Preferably, the screen frame, the sliding plate fixing mechanism, the first limiting block and the second limiting block are made of polypropylene, a hole is formed in the middle of one side of the soft rubber pad, and the size of the transverse screen pushing port is the same as that of the hole.
Preferably, the method comprises the following steps:
step one, designing the size of a screen frame according to the structure of a vibrating screen, determining the sizes of a handle, a sliding plate fixing mechanism, a first limiting block and a second limiting block according to the size of the screen frame, pouring polypropylene materials into a corresponding mould through an injection molding machine, and preparing the corresponding screen frame, the handle and the sliding plate fixing mechanism, wherein the screen frame is connected with the handle in a welding manner, the sliding plate fixing mechanism is connected with the screen frame in a welding manner, and the screen frame, the first limiting block and the second limiting block are integrally formed;
preparing corresponding wave type petroleum vibrating screen meshes, plate type petroleum vibrating screen meshes and frame type petroleum vibrating screen meshes, wherein the outer parts of the screen meshes are formed by using steel plate frames;
pushing the corresponding wavy petroleum vibrating screen mesh and plate petroleum vibrating screen mesh into the screen mesh frame from a transverse screen pushing opening, fixing the longitudinal position of the screen mesh through a first limiting block and a second limiting block, inserting a fixing plate into an inserting plate groove through an inserting plate opening, fixing the horizontal position of the screen mesh, wherein the length of the fixing plate is the same as that of the inserting plate opening, and the width of the fixing plate is slightly smaller than that of the inserting plate opening;
and step four, thermally melting and bonding one side of the soft rubber pad to one side of the sliding plate fixing mechanism and the other side of the screen frame to form the complete vibrating screen.
Compared with the prior art, the invention has the beneficial effects that: the device and the matching process method thereof provided by the invention uniformly prepare the screen mesh into the uniform screen mesh plate, different screen meshes can be replaced according to different requirements in use, the position of the inner screen mesh plate can be fixed through the matching of the sliding plate fixing mechanism, the first limiting block and the second limiting block, the whole vibrating screen mesh is replaced in disorder, and the screen mesh frame are uniformly prepared, so that the device can be perfectly matched with a machine, different machines and additional screen mesh frames are not needed, the alternate use of the three screen meshes can be realized only by configuring the corresponding plate type petroleum vibrating screen mesh, the wave type petroleum vibrating screen mesh and the frame type petroleum vibrating screen mesh module, and the arranged soft rubber pad can weaken the direct collision force between the screen mesh frame and the machine, so that the service life of the screen mesh frame is prolonged, and the device has a certain use prospect.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a right side view of a screen frame according to the present invention;
FIG. 3 is a schematic structural view of a fixing mechanism of the slide board according to the present invention;
fig. 4 is a schematic structural diagram of a second limiting block in the invention.
In the figure: 1. a screen frame; 2. a handle; 3. a slide plate fixing mechanism; 4. a soft rubber pad; 5. screening a screen; 6. a first limiting block; 7. a second limiting block; 8. a board inserting port; 9. a board inserting groove; 10. and transversely pushing the net port.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a vibrating screen for exploiting petroleum and a preparation method thereof comprise a screen frame 1, a sliding plate fixing mechanism 3 is fixedly connected to the outer surface of one side of the screen frame 1, a soft rubber pad 4 is arranged on the outer surface of one side of the sliding plate fixing mechanism 3, a screen 5 is arranged inside the screen frame 1, a first limiting block 6 and a second limiting block 7 are arranged between the screen 5 and the screen frame 1, the first limiting block 6 is located at the upper end of the screen frame 1, the second limiting block 7 is located at the lower end of the screen frame 1, a handle 2 is arranged on the outer surface of the upper end of the first limiting block 6, an inserting plate opening 8 is formed in the outer surface of the upper end of the sliding plate fixing mechanism 3, an inserting plate groove 9 is formed in the middle of the sliding plate fixing mechanism 3.
The connection relation of the partial structure of the device is expressed, in the embodiment, one side outer surface of the handle 2 is fixedly connected with the inner surface of the screen frame 1, the handle 2 is fixedly connected with the screen frame 1 in a welding mode, one side outer surface of the sliding plate fixing mechanism 3 is fixedly connected with one side outer surface of the screen frame 1, and the sliding plate fixing mechanism 3 is fixedly connected with the screen frame 1 in a welding mode.
The relation between the first limiting block 6 and the second limiting block 7 and the screen frame 1 is expressed, in the embodiment, the lengths of the first limiting block 6 and the second limiting block 7 are the same as the length of the screen frame 1, the widths of the first limiting block 6 and the second limiting block 7 are fifteen times of the width of the screen frame 1, the heights of the first limiting block 6 and the second limiting block 7 are one fiftieth of the height of the screen frame 1, and the screen frame 1, the first limiting block 6 and the second limiting block 7 are integrally formed.
The material and the size of partial structure have been expressed, and in this embodiment, screen frame 1, slide fixed establishment 3, No. one stopper 6 and No. two stoppers 7's material are polypropylene, and the hole has been seted up at one side middle part of soft rubber pad 4, and the size that transversely pushes away net mouth 10 is the same with the size in hole.
The preparation method of the vibrating screen for petroleum exploitation is described, in the embodiment, in the step one, the size of a screen frame 1 is designed according to the structure of a vibrating screen, the sizes of a handle 2, a sliding plate fixing mechanism 3, a first limiting block 6 and a second limiting block 7 are determined according to the size of the screen frame 1, polypropylene materials are poured into corresponding molds through an injection molding machine to prepare corresponding screen frames 1, the handle 2 and the sliding plate fixing mechanism 3, the screen frames 1 and the handle 2 are connected through welding, the sliding plate fixing mechanism 3 is connected with the screen frames 1 through welding, and the screen frames 1, the first limiting blocks 6 and the second limiting blocks 7 are integrally formed;
preparing corresponding wave type petroleum vibrating screen meshes, plate type petroleum vibrating screen meshes and frame type petroleum vibrating screen meshes, wherein the outer parts of the screen meshes are formed by using steel plate frames;
thirdly, pushing the corresponding wavy petroleum vibrating screen mesh and plate petroleum vibrating screen mesh into the screen mesh frame 1 from a transverse mesh pushing opening 10, fixing the longitudinal position of the screen mesh through a first limiting block 6 and a second limiting block 7, inserting a fixing plate into an inserting plate groove 9 through an inserting plate opening 8, fixing the horizontal position of the screen mesh, wherein the length of the fixing plate is the same as that of the inserting plate opening 8, and the width of the fixing plate is slightly smaller than that of the inserting plate opening 8;
and step four, thermally melting and bonding one side of the soft rubber pad 4 to one side of the sliding plate fixing mechanism 3 and the other side of the screen frame 1 to form the complete vibrating screen.
The invention mainly comprises a screen frame 1, a handle 2, a sliding plate fixing mechanism 3, a soft rubber pad 4, a screen 5, a first limit block 6, a second limit block 7, a board inserting port 8, a board inserting groove 9 and a transverse screen pushing port 10, the preparation process firstly designs the size of the screen frame 1 according to the structure of the vibrating screen, determines the sizes of the handle 2, the sliding plate fixing mechanism 3, the first limit block 6 and the second limit block 7 according to the size of the screen frame 1, pours polypropylene materials into corresponding moulds through an injection molding machine to prepare the corresponding screen frame 1, the handle 2 and the sliding plate fixing mechanism 3, the screen frame 1 is connected with the handle 2 through welding, the sliding plate fixing mechanism 3 is connected with the screen frame 1 through welding, wherein the screen frame 1, the first limit block 6 and the second limit block 7 are integrally molded to prepare the corresponding wavy type petroleum vibrating screen, plate type petroleum vibrating screen and frame type petroleum vibrating screen, the device and the matched process method provided by the invention are characterized in that the screen cloth 5 is uniformly prepared into a uniform screen plate, different screen cloths 5 can be replaced according to different requirements when the device is used, the inner screen plate can be fixed in position by matching the sliding plate fixing mechanism 3, the first limit block 6 and the second limit block 7, unordered whole shale shaker screen cloth of changing, and screen cloth 5 and screen cloth frame 1 are the unified system of joining in marriage, so can with machine perfect adaptation, need not different machine and extra screen cloth frame, only dispose corresponding board-like oil shale shaker screen cloth, wave formula oil shale shaker screen cloth and frame-type oil shale shaker screen cloth module can realize the use by turns of three kinds of screen cloth 5, and the rubber cushion pad 4 that sets up can weaken the direct collision dynamics between screen cloth frame 1 and the machine, the life of screen cloth frame 1 has been increased, certain application prospect has.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Vibrating screen for the production of oil, comprising a screen frame (1), characterized in that: the outer surface of one side of the screen frame (1) is fixedly connected with a sliding plate fixing mechanism (3), a soft rubber pad (4) is arranged on the outer surface of one side of the sliding plate fixing mechanism (3), a screen (5) is arranged in the screen frame (1), a first limit block (6) and a second limit block (7) are arranged between the screen (5) and the screen frame (1), the first limiting block (6) is positioned at the upper end of the screen frame (1), the second limiting block (7) is positioned at the lower end of the screen frame (1), the outer surface of the upper end of the first limiting block (6) is provided with a handle (2), the outer surface of the upper end of the sliding plate fixing mechanism (3) is provided with a plate inserting opening (8), the middle part of the sliding plate fixing mechanism (3) is provided with an inserting plate groove (9), and one side of the sliding plate fixing mechanism (3) is provided with a transverse net pushing port (10).
2. The vibratory screen for oil recovery of claim 1, wherein: the utility model discloses a screen cloth, including handle (2), slide fixed establishment (3) and screen cloth frame (1), the internal surface fixed connection of one side surface and screen cloth frame (1) of handle (2), handle (2) and screen cloth frame (1) welded connection, the one side surface fixed connection of slide fixed establishment (3) and screen cloth frame (1), welded connection between slide fixed establishment (3) and the screen cloth frame (1).
3. The vibratory screen for oil recovery of claim 1, wherein: the length of No. one stopper (6) and No. two stopper (7) is the same with the length of screen cloth frame (1), the width of No. one stopper (6) and No. two stopper (7) is the fifteen times of screen cloth frame (1) width, the height of No. one stopper (6) and No. two stopper (7) is the fifteen times of screen cloth frame (1) height, screen cloth frame (1), No. one stopper (6) and No. two stopper (7) integrated into one piece.
4. The vibratory screen for oil recovery of claim 1, wherein: the screen frame (1), the slide fixed establishment (3), the stopper (6) and No. two stoppers (7) are made of polypropylene, a hole is formed in the middle of one side of the soft rubber pad (4), and the size of the transverse screen pushing opening (10) is the same as that of the hole.
5. The method for preparing a vibrating screen for the production of oil as set forth in claims 1 to 4, wherein: the method specifically comprises the following steps:
step one, designing the size of a screen frame (1) according to the structure of a vibrating screen, determining the sizes of a handle (2), a sliding plate fixing mechanism (3), a first limiting block (6) and a second limiting block (7) according to the size of the screen frame (1), pouring polypropylene materials into corresponding molds through an injection molding machine, and preparing the corresponding screen frame (1), the handle (2) and the sliding plate fixing mechanism (3), wherein the screen frame (1) is connected with the handle (2) in a welding manner, the sliding plate fixing mechanism (3) is connected with the screen frame (1) in a welding manner, and the screen frame (1), the first limiting block (6) and the second limiting block (7) are integrally formed;
preparing corresponding wave type petroleum vibrating screen meshes, plate type petroleum vibrating screen meshes and frame type petroleum vibrating screen meshes, wherein the outer parts of the screen meshes are formed by using steel plate frames;
thirdly, pushing the corresponding wavy petroleum vibrating screen mesh and plate petroleum vibrating screen mesh into the screen mesh frame (1) from a transverse screen pushing port (10), fixing the longitudinal position of the screen mesh through a first limiting block (6) and a second limiting block (7), inserting a fixing plate into an inserting plate groove (9) through an inserting plate port (8), fixing the horizontal position of the screen mesh, wherein the length of the fixing plate is the same as that of the inserting plate port (8), and the width of the fixing plate is slightly smaller than that of the inserting plate port (8);
and step four, thermally melting and bonding one side of the soft rubber pad (4) to one side of the sliding plate fixing mechanism (3) and the other side of the screen frame (1) to form the complete vibrating screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284209.0A CN111502570A (en) | 2020-04-15 | 2020-04-15 | Vibrating screen for oil exploitation and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284209.0A CN111502570A (en) | 2020-04-15 | 2020-04-15 | Vibrating screen for oil exploitation and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111502570A true CN111502570A (en) | 2020-08-07 |
Family
ID=71867688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010284209.0A Pending CN111502570A (en) | 2020-04-15 | 2020-04-15 | Vibrating screen for oil exploitation and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111502570A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813619A1 (en) * | 1998-03-27 | 1999-09-30 | Norddeutsche Seekabelwerk Gmbh | Blanket or envelope made of a plastic material with a mesh structure and method for the production thereof |
| CN106000874A (en) * | 2016-06-13 | 2016-10-12 | 长安大学 | Method for replacing intermediate pull net cross beams, screen box and screen cloth of vibrating screen |
| CN106948778A (en) * | 2017-05-12 | 2017-07-14 | 成都大漠石油技术有限公司 | Suitable for the processing equipment of oil drilling sludge |
| CN108672288A (en) * | 2018-07-04 | 2018-10-19 | 佛山市墨宸智能科技有限公司 | A kind of coal screening screen fixing device |
| CN109458145A (en) * | 2018-12-28 | 2019-03-12 | 默泰克（天津）石油装备有限公司 | Vibration screen and preparation method thereof for exploiting petroleum |
| CN110238052A (en) * | 2019-07-29 | 2019-09-17 | 广州中航环保科技有限公司 | A kind of filter screen and its manufacture craft |
| CN110238043A (en) * | 2019-06-28 | 2019-09-17 | 青岛康尔健中药饮片有限公司 | A kind of spherical spice preselector of sieve Stackable type |
-
2020
- 2020-04-15 CN CN202010284209.0A patent/CN111502570A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19813619A1 (en) * | 1998-03-27 | 1999-09-30 | Norddeutsche Seekabelwerk Gmbh | Blanket or envelope made of a plastic material with a mesh structure and method for the production thereof |
| CN106000874A (en) * | 2016-06-13 | 2016-10-12 | 长安大学 | Method for replacing intermediate pull net cross beams, screen box and screen cloth of vibrating screen |
| CN106948778A (en) * | 2017-05-12 | 2017-07-14 | 成都大漠石油技术有限公司 | Suitable for the processing equipment of oil drilling sludge |
| CN108672288A (en) * | 2018-07-04 | 2018-10-19 | 佛山市墨宸智能科技有限公司 | A kind of coal screening screen fixing device |
| CN109458145A (en) * | 2018-12-28 | 2019-03-12 | 默泰克（天津）石油装备有限公司 | Vibration screen and preparation method thereof for exploiting petroleum |
| CN110238043A (en) * | 2019-06-28 | 2019-09-17 | 青岛康尔健中药饮片有限公司 | A kind of spherical spice preselector of sieve Stackable type |
| CN110238052A (en) * | 2019-07-29 | 2019-09-17 | 广州中航环保科技有限公司 | A kind of filter screen and its manufacture craft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211762302U (en) | Prefabricated product mould for concrete | |
| CN111502570A (en) | Vibrating screen for oil exploitation and preparation method thereof | |
| KR100375917B1 (en) | Concrete vibrator | |
| CN200988297Y (en) | Rubber frame forming mould | |
| CN201839918U (en) | Mold for producing sharp bottomed rhinestones | |
| CN209409169U (en) | A kind of injection mold being convenient for changing mold core | |
| CN106392008B (en) | Multichannel casting runner mould | |
| CN206003826U (en) | LED packaging plastic molding structure | |
| CN112549407B (en) | Automobile stamping die and method thereof | |
| CN212171159U (en) | Oil pan plastic mold for producing automobile injection molding parts | |
| CN210026071U (en) | Starter electromagnetic switch mold processing | |
| CN207076360U (en) | A kind of fast changeable filter screen structure | |
| CN210648441U (en) | Rapid forming die for metal product parts | |
| CN207087743U (en) | A kind of auto parts and components splicing component for avoiding wasting | |
| CN104669521B (en) | Drainage screen mould | |
| CN212528165U (en) | Automatic mold filling device for hollow brick production | |
| CN215467891U (en) | Cylinder cover pouring core box | |
| CN110116090B (en) | Wavy sieve plate and production process thereof | |
| CN214687755U (en) | High shaping cell-phone lens cone is with quick mould | |
| CN210477662U (en) | A multi-chamber injection mold for beverage lid processing | |
| CN219616100U (en) | Screening plant of clay board feeding machine | |
| CN211489514U (en) | Sand mould device for mechanical casting | |
| CN210253104U (en) | Wave-shaped sieve plate | |
| CN210477659U (en) | Rubber shock absorber injection moulding mould | |
| CN212498644U (en) | Foaming mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |