CN110833782B - Stirring device and positive circulation drilling machine with same - Google Patents
Stirring device and positive circulation drilling machine with same Download PDFInfo
- Publication number
- CN110833782B CN110833782B CN201910923408.9A CN201910923408A CN110833782B CN 110833782 B CN110833782 B CN 110833782B CN 201910923408 A CN201910923408 A CN 201910923408A CN 110833782 B CN110833782 B CN 110833782B
- Authority
- CN
- China
- Prior art keywords
- stirring
- drill rod
- drilling
- stirring device
- piece
- 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.)
- Active
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 172
- 238000005553 drilling Methods 0.000 title claims abstract description 80
- 239000002893 slag Substances 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 3
- 238000010276 construction Methods 0.000 abstract description 18
- 238000011065 in-situ storage Methods 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 8
- 239000002002 slurry Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
-
- 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
- E21B21/062—Arrangements for treating drilling fluids outside the borehole by mixing components
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a stirring device and a positive circulation drilling machine with the same. Wherein, agitating unit includes: the stirring device comprises a locking piece and at least three stirring pieces with preset elasticity; each stirring piece is arranged along the circumferential direction of a drill rod of the drilling machine and is arranged on the same radial section of the drill rod so as to stir the drilling slag; the retaining member is detachably connected with the drill rod so as to lock each stirring member with the drill rod. According to the invention, each stirring piece and the drill rod are locked through the locking piece, so that the relative fixation between each stirring piece and the drill rod is ensured, each stirring piece assists the drill bit of the drilling machine to stir the drilling slag so as to stir the drilling slag better, and particularly when the drilling machine is applied to the construction of a cast-in-situ bored pile, the mud and the drilling slag are uniformly mixed under the combined action of each stirring piece and the drill bit, so that the mixing uniformity of the mud and the drilling slag is improved, the sinking of the drilling slag can be slowed down, the stirring efficiency and the slag discharging efficiency are improved, the drilling slag is convenient to clean, the subsequent construction is ensured, and the reutilization is also realized.
Description
Technical Field
The invention relates to the technical field of drilling machines, in particular to a stirring device and a positive circulation drilling machine with the same.
Background
With the rapid development of the construction industry in China, the construction of cast-in-situ bored piles is often involved in the foundation construction of construction engineering, and sand pebbles or mudstone interlayers often appear in the stratum due to different geological conditions of various regions. The hole forming operation is generally carried out by a positive circulation drilling machine, however, due to the fact that the density of the drilling slag of the sand-gravel or mud-rock interlayer is high, the rotation of the drill bit can mix the mud and the drilling slag, but the stirring efficiency is low. In addition, more drilling slag still remains after hole cleaning for many times, and the thickness of the drilling slag is easy to be too large after the drilling slag is precipitated, so that pile foundation construction is influenced.
Disclosure of Invention
In view of this, the invention provides a stirring device, and aims to solve the problem that in the prior art, a positive circulation drilling machine is low in stirring efficiency of drilling slag. The invention also provides a positive circulation drilling machine with the stirring device.
In one aspect, the present invention provides a stirring device for a drilling rig, the device comprising: the stirring device comprises a locking piece and at least three stirring pieces with preset elasticity; the stirring pieces are arranged along the circumferential direction of a drill rod of the drilling machine and are all arranged on the same radial section of the drill rod so as to stir the drilling slag; the retaining member is detachably connected with the drill rod so as to lock each stirring member with the drill rod.
Further, in the stirring device, the stirring pieces are uniformly distributed along the circumferential direction of the drill rod.
Further, in the above-mentioned stirring device, the locking member includes: two locking bodies which are detachably connected; the two locking bodies are in a semi-annular shape, and are sleeved outside the drill rod after being butted; every stirring piece all is provided with and presss from both sides the portion of establishing, and every presss from both sides the portion of establishing and all presss from both sides and locates between corresponding locking body and the drilling rod.
Further, in the stirring device, each clamping portion is connected with the corresponding locking body in a spot welding mode.
Further, in the stirring device, each of the clamping portions is vertical; each stirring piece is further provided with an annular part, the first end of the clamping part is connected with the first end of the annular part, and the second end of the annular part is a free end and is bent towards the second end of the clamping part.
Further, in the above-mentioned stirring device, each stirring piece still is provided with vertical portion, and the second end of annular portion is connected with vertical portion, and vertical portion sets up with pressing from both sides the portion of establishing side by side to vertical portion and pressing from both sides the portion of establishing and all pressing from both sides and locate between corresponding locking body and the drilling rod.
Further, in the stirring device, the two locking bodies are connected through a bolt.
Further, in the stirring device, each stirring member is a steel strand.
In the invention, each stirring piece is locked with the drill rod through the locking piece, so that the relative fixation between each stirring piece and the drill rod is ensured, each stirring piece assists the drill bit of the drilling machine to stir the drilling slag so as to better stir the drilling slag, particularly when the drilling machine is applied to the construction of a cast-in-situ drilling pile, the combined action of each stirring piece and the drill bit can ensure that the slurry and the drilling slag are uniformly mixed, so that the mixing uniformity of the slurry and the drilling slag is improved, the sinking of the drilling slag can be slowed down, the stirring efficiency and the slag discharging efficiency are improved, the drilling slag is convenient to clean, the subsequent construction is ensured, the construction efficiency is improved, the problem of low stirring efficiency of the normal circulation drilling machine on the drilling slag in the prior art is solved, in addition, the connecting relation between each stirring piece and the drill rod is not provided, the installation and the disassembly of the stirring device are convenient, the setting can be carried out according to the actual situation, and the reutilization is realized, the application range is expanded, and meanwhile, the structure is simple and convenient to implement.
In another aspect, the present invention also provides a positive cycle drilling rig, comprising: drill rods, drill bits and any of the above-mentioned stirring devices; the drill rod is connected with the drill bit, and the locking piece in the stirring device is detachably connected with the drill rod so as to lock each stirring piece in the stirring device with the drill rod.
Furthermore, in the positive circulation drilling machine, the number of the stirring devices is at least two, and the stirring devices are uniformly arranged along the axial direction of the drill rod.
Due to the fact that the stirring device has the effect, the positive circulation drilling machine with the stirring device also has the corresponding technical effect.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of a stirring apparatus provided in an embodiment of the present invention;
FIG. 2 is a schematic top view of the structure at A-A in FIG. 1;
fig. 3 is a schematic structural diagram of a stirring member in the stirring device according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example of stirring device:
referring to fig. 1 to 3, a preferred structure of the stirring device in the present embodiment is shown. As shown, the stirring device is used in a drilling machine, more specifically, it is arranged on a drill rod 3 of the drilling machine. The stirring device comprises: a locking member 1 and at least three stirring members 2. Wherein each stirring element 2 corresponds to a drill rod 3 of the drilling machine, but each stirring element 2 is not directly connected with the drill rod 3. Moreover, each stirring element 2 is arranged along the circumferential direction of the drill rod 3, and preferably, each stirring element 2 is uniformly distributed along the circumferential direction of the drill rod 3.
In specific implementation, the number of the stirring members 2 can be determined according to actual conditions, and the embodiment does not limit the number. In the present embodiment, the number of stirring elements 2 is four, and the four stirring elements 2 are symmetrically arranged with respect to the drill rod 3. Preferably, the number of stirring elements 2 is an even number, such as 6, 8, etc.
Each stirring element 2 is arranged at the same radial (left-to-right direction in fig. 1) section of the drill rod 3, i.e. each stirring element 2 is located on the same transverse section of the drill rod 3, so that each stirring element 2 is located at the same height of the drill rod 3. Each stirring piece 2 is used for stirring the drilling slag drilled by the drilling machine. When the drilling machine is applied to construction of the cast-in-situ bored pile, the stirring of each stirring piece 2 enables the slurry to be fully mixed with the drilling slag, the drill bit 4 of the auxiliary drilling machine is used for stirring and mixing the slurry and the drilling slag, so that bottom sinking of the drilling slag is avoided, and particularly, a better stirring effect can be achieved on sand pebbles with high density.
Every stirring piece 2 all has and predetermines elasticity to make every stirring piece 2 all have the self-adaptability, and then the environment when being convenient for adapt to rig construction, even stirring piece 2 contacts harder object also can break away from through the elastic deformation of self, avoids appearing contacting the phenomenon of easy self damage behind the harder object when the stirring piece is the rigidity, and then can stir the sediment of boring better. Preferably, each stirring member 2 is a steel strand.
The locking member 1 is detachably connected with the drill rod 3 so as to lock each stirring member 2 with the drill rod 3. Specifically, each stirring part 2 is not connected with the drill rod 3, and each stirring part 2 is relatively fixed with the drill rod 3 by virtue of the connection between the locking part 1 and the drill rod 3, so that each stirring part 2 is arranged on the drill rod 3. Because each stirring piece 2 is arranged at the same radial section of the drill rod 3, the locking body 11 can be convenient for locking each stirring piece 2 at the same time.
It can be seen that, in the embodiment, each stirring member 2 is locked with the drill rod 3 through the locking member 1, so that the relative fixation between each stirring member 2 and the drill rod 3 is ensured, each stirring member 2 assists the drill bit 4 of the drilling machine to stir the drilling slag so as to better stir the drilling slag, especially when the drilling machine is applied to the construction of a cast-in-situ bored pile, the combined action of each stirring member 2 and the drill bit can enable the slurry to be uniformly mixed with the drilling slag, so that the stirring uniformity of the slurry and the drilling slag is improved, the sinking of the drilling slag can be slowed down, the stirring efficiency and the slag discharging efficiency are improved, so that the drilling slag is convenient to clean, the subsequent construction is ensured, the construction efficiency is improved, the problem that the stirring efficiency of the drilling slag by a positive circulation drilling machine in the prior art is low is solved, in addition, no connection relation exists between each stirring member 2 and the drill rod 3, the installation and the disassembly of the stirring device are convenient, and the setting can be carried out according to the actual situation, the recycling is realized, the application range is expanded, and meanwhile, the structure is simple and the implementation is convenient.
Referring to fig. 1 to 3, in the above embodiment, the locker 1 includes: two locking bodies 11. Wherein, two locking bodies 11 are both in a semi-ring shape. After the two locking bodies 11 are butted, the two locking bodies 11 form a circle. And, after two locking bodies 11 are butted, they are cover-mounted on the exterior of drilling rod 3. The two locking bodies 11 are detachably connected after being butted, so that the two locking bodies 11 are kept in a butted state.
Preferably, the two locking bodies are connected through bolts, so that the structure is simple and the implementation is convenient. Specifically, two ends of each locking body 11 are provided with a connecting plate, the connecting plates at the ends of each locking body 11 are overlapped after the two locking bodies 11 are butted, and the overlapped connecting plates are connected through bolts.
In the present embodiment, each locking body 11 is made of a thin iron plate with a thickness of 3mm and is made into a semicircular shape. The bolt between the two locking bodies 11 is a phi 14 bolt.
Each stirring piece 2 is provided with a clamping portion 21, and each clamping portion 21 is clamped between the corresponding locking body 11 and the corresponding drill rod 3, so that after the two locking bodies 11 are butted and detachably connected together, the clamping portion 21 of each stirring piece 2 is clamped, the clamping portion 21 of each stirring piece 2 is stably clamped between the locking body 11 and the drill rod 3, and the stirring pieces 2 and the drill rods 3 are locked together.
Specifically, the inner diameter of the circle formed by the butt joint of the two locking bodies 11 is slightly larger than the outer diameter of the drill rod 3, so as to facilitate the clamping of the clamping portion 21 of each stirring member 2.
In the embodiment, the two locking bodies 11 are butted, and then the stirring parts 2 are clamped between the inner ring and the drill rod 3, so that the stirring parts 2 are locked, the stirring parts 2 and the drill rod 3 are relatively fixed, and the structure is simple and convenient to implement.
Each stirring member 2 generates torque during stirring, and in order to ensure the relative fixation of each stirring member 2 and the drill rod 3, the clamping portion 21 of each stirring member 2 is spot-welded to the locking body 11 at the corresponding position, specifically, each clamping portion 21 is spot-welded to the locking body 11 at the corresponding position. Like this, guaranteed the stable connection between each stirring piece 2 and the retaining member 1 effectively, and then guaranteed the relative fixity between each stirring piece 2 and the drilling rod 3, guaranteed the steady operation of each stirring piece 2, avoided each stirring piece 2 to break away from the locking effect of retaining member 1 and lose the stirring effect under the moment of torsion effect.
Referring to fig. 1 to 3, in the above embodiments, the clamping portion 21 of each stirring member 2 is vertical so as to be parallel to the axial direction (the direction from top to bottom in fig. 1) of the drill rod 3, so as to facilitate the clamping of the clamping portion 21.
Referring to fig. 3, each stirring element 2 is also provided with an annular portion 22. Taking one stirring piece 2 as an example, the arrangement structures of the other stirring pieces 2 are the same. A first end (an upper end shown in fig. 3) of the interposed portion 21 is connected to a first end (an upper end shown in fig. 3) of the annular portion 22, a second end (a lower end shown in fig. 3) of the annular portion 22 is a free end, and the second end of the annular portion 22 is bent toward the second end of the interposed portion 21. The annular portion 22 of each stirring element 2 is used for stirring the drill cuttings.
In specific implementation, the diameter of the annular portion 22 may be determined according to actual conditions to be suitable for different drilling environments, and the embodiment does not limit this. In the present embodiment, the diameter of the annular portion 22 is 15.24 mm.
Preferably, each stirring member 2 is further provided with a vertical portion 23, and taking one stirring member 2 as an example, the arrangement structure of the other stirring members 2 is the same. The second end of the annular portion 22 is connected to a first end (lower end shown in fig. 3) of the upright portion 23, and a second end (upper end shown in fig. 3) of the upright portion 23 is a free end. The vertical portion 23 is juxtaposed with the sandwiched portion 21, that is, the vertical portion 23 is parallel to the sandwiched portion 21, and the length of the vertical portion 23 matches the length of the sandwiched portion 21. The vertical portion 23 is in contact with the interposed portion 21, and the vertical portion 23 and the interposed portion 21 are each interposed between the corresponding locking body 11 and the drill rod 3. Like this, can guarantee effectively that each stirring piece 2 and drilling rod 3 are fixed with locking reliably steadily between, ensure that each stirring piece 2 normally works.
To sum up, in the embodiment, each stirring member 2 is locked with the drill rod 3 through the locking member 1, so that the relative fixation between each stirring member 2 and the drill rod 3 is ensured, each stirring member 2 assists the drill bit 4 of the drilling machine to stir the drill slag so as to better stir the drill slag, especially when the drilling machine is applied to the construction of a cast-in-situ bored pile, the combined action of each stirring member 2 and the drill bit can enable the slurry to be uniformly mixed with the drill slag, so that the stirring uniformity of the slurry and the drill slag is improved, the drill slag sinking can be slowed down, the stirring efficiency and the slag discharging efficiency are improved, so that the drill slag is convenient to clean, the subsequent construction is ensured, the construction efficiency is improved, moreover, no connection relation exists between each stirring member 2 and the drill rod 3, the installation and the disassembly of the stirring device are convenient, the setting can be carried out according to actual conditions, the reutilization is realized, the application range is expanded, and simultaneously, simple structure and convenient implementation.
Positive circulation drill embodiments:
the present embodiment also proposes a positive cycle drilling rig, see fig. 1, comprising: a drill rod 3, a drill bit 4 and any of the stirring devices described above. Wherein, drilling rod 3 is connected with drill bit 4, and retaining member 1 in the agitating unit can dismantle with drilling rod 3 and be connected to each stirring piece 2 in with the agitating unit locks mutually with drilling rod 3. The specific implementation process of the stirring device may be as described above, and this embodiment is not described herein again.
Preferably, the number of the stirring devices is at least two, and each stirring device is uniformly arranged along the axial direction of the drill rod 3. In specific implementation, the number of the stirring devices may be determined according to actual situations, and this embodiment does not limit this.
Due to the fact that the stirring device has the effect, the positive circulation drilling machine with the stirring device also has the corresponding technical effect.
It should be noted that the stirring device and the positive circulation drilling machine having the stirring device in the present invention have the same principle, and the relevant points can be referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A stirring device for a drilling rig, comprising: the stirring device comprises a locking piece (1) and at least three stirring pieces (2) with preset elasticity; wherein the content of the first and second substances,
each stirring piece (2) is arranged along the circumferential direction of a drill rod (3) of the drilling machine and is arranged at the same radial section of the drill rod (3) so as to stir the drilling slag;
the locking piece (1) is detachably connected with the drill rod (3) so as to lock each stirring piece (2) and the drill rod (3) together;
the retaining member (1) comprises: two detachably connected locking bodies (11); wherein the content of the first and second substances,
the two locking bodies (11) are semi-annular, and the two locking bodies (11) are sleeved outside the drill rod (3) after being butted;
each stirring piece (2) is provided with a clamping part (21), and each clamping part (21) is clamped between the corresponding locking body (11) and the drill rod (3);
each clamping part (21) is vertical;
each stirring piece (2) is further provided with an annular part (22), the first end of the clamping part (21) is connected with the first end of the annular part (22), and the second end of the annular part (22) is a free end and is bent towards the second end of the clamping part (21).
2. A mixing apparatus according to claim 1, wherein the mixing elements (2) are evenly distributed in the circumferential direction of the drill rod (3).
3. Stirring device according to claim 1, characterised in that each of said clamping portions (21) is spot-welded to the corresponding locking body (11).
4. Stirring device according to claim 1, characterised in that each stirring element (2) is further provided with a vertical portion (23), the second end of the annular portion (22) being connected to the vertical portion (23), the vertical portion (23) being juxtaposed to the interposed portion (21), and in that the vertical portion (23) and the interposed portion (21) are interposed between the corresponding locking body (11) and the drill rod (3).
5. Stirring device according to claim 1, wherein two of said locking bodies (11) are connected by means of a bolt.
6. Stirring device according to claim 1, characterised in that each stirring element (2) is a steel strand.
7. A positive cycle drilling machine, comprising: a drill stem, a drill bit and a stirring device as claimed in any one of claims 1 to 6; wherein the content of the first and second substances,
the drill rod (3) is connected with the drill bit (4), and a locking piece (1) in the stirring device is detachably connected with the drill rod (3) so as to lock each stirring piece (2) in the stirring device with the drill rod (3).
8. A positive circulation drilling machine according to claim 7, characterized in that the number of stirring devices is at least two, each stirring device being evenly arranged in the axial direction of the drill rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923408.9A CN110833782B (en) | 2019-09-27 | 2019-09-27 | Stirring device and positive circulation drilling machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910923408.9A CN110833782B (en) | 2019-09-27 | 2019-09-27 | Stirring device and positive circulation drilling machine with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110833782A CN110833782A (en) | 2020-02-25 |
| CN110833782B true CN110833782B (en) | 2022-03-22 |
Family
ID=69575353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910923408.9A Active CN110833782B (en) | 2019-09-27 | 2019-09-27 | Stirring device and positive circulation drilling machine with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110833782B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3152029A1 (en) * | 1981-12-31 | 1983-07-07 | Werner Dick | Mixing blade of plastic having fins attached laterally and on the underside, as well as having outer edges fitted with carbide tips for better cleaning and increased abrasion resistance |
| CN201423256Y (en) * | 2009-06-01 | 2010-03-17 | 无锡华海香料有限公司 | Elastic claw stirrer |
| CN102296929A (en) * | 2011-05-10 | 2011-12-28 | 马喜 | Silt stirrer for non-excavation guide drilling machine |
| CN103101112A (en) * | 2011-11-09 | 2013-05-15 | 徐工集团工程机械股份有限公司 | Novel elastic stirring blade for concrete hopper |
| JP2014124587A (en) * | 2012-12-26 | 2014-07-07 | Mac Mach Tool:Kk | Paper processing device |
| CN105297732A (en) * | 2015-11-12 | 2016-02-03 | 上海十三冶建设有限公司 | Slagging promoting device for ultra-thick clay layer positive-cycle cast-in-place pile and construction method of slagging promoting device |
| CN108211869A (en) * | 2018-03-19 | 2018-06-29 | 安吉艺科装饰材料科技有限公司 | PVC carpet raw material mixing arrangement stirring blades |
-
2019
- 2019-09-27 CN CN201910923408.9A patent/CN110833782B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3152029A1 (en) * | 1981-12-31 | 1983-07-07 | Werner Dick | Mixing blade of plastic having fins attached laterally and on the underside, as well as having outer edges fitted with carbide tips for better cleaning and increased abrasion resistance |
| CN201423256Y (en) * | 2009-06-01 | 2010-03-17 | 无锡华海香料有限公司 | Elastic claw stirrer |
| CN102296929A (en) * | 2011-05-10 | 2011-12-28 | 马喜 | Silt stirrer for non-excavation guide drilling machine |
| CN103101112A (en) * | 2011-11-09 | 2013-05-15 | 徐工集团工程机械股份有限公司 | Novel elastic stirring blade for concrete hopper |
| JP2014124587A (en) * | 2012-12-26 | 2014-07-07 | Mac Mach Tool:Kk | Paper processing device |
| CN105297732A (en) * | 2015-11-12 | 2016-02-03 | 上海十三冶建设有限公司 | Slagging promoting device for ultra-thick clay layer positive-cycle cast-in-place pile and construction method of slagging promoting device |
| CN108211869A (en) * | 2018-03-19 | 2018-06-29 | 安吉艺科装饰材料科技有限公司 | PVC carpet raw material mixing arrangement stirring blades |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110833782A (en) | 2020-02-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4753426B2 (en) | Steel pipe joints | |
| CN110833782B (en) | Stirring device and positive circulation drilling machine with same | |
| CN110714463A (en) | Mechanical expanding anti-floating anchor rod and construction method thereof | |
| JP2013237982A (en) | Concrete pile | |
| CN201695949U (en) | Casing driver and rotary drilling rig | |
| JP2008274613A (en) | Connecting structure of steel pipe pile | |
| JP6836284B2 (en) | How to drive foundation piles and foundation piles | |
| CN201598983U (en) | Spiral drilling machine and spiral drilling tool thereof | |
| KR20190010074A (en) | micro-pile boring casings pipe for one shot grouting | |
| CN205475253U (en) | Supporting structure of foundation pit | |
| CN211285588U (en) | Mechanical expanding type anti-floating anchor rod | |
| JP6470699B2 (en) | Pile connection structure | |
| CN105464104A (en) | Drilling and mixing machine for semicircular locking T-shaped piles | |
| JP2009275443A (en) | Expansion confirmation method for expansion head | |
| JP3840474B2 (en) | One-side construction method for structures | |
| CN210918912U (en) | Reinforced drill rod and rotary drilling rig | |
| CN216041163U (en) | Spiral pile connecting structure of drilling machine | |
| KR101762628B1 (en) | A H-pile for sheathing at building inside | |
| CN205742150U (en) | High fault tolerance recyclable piling bar socket join structure | |
| CN205370609U (en) | Stock is strutted in colliery | |
| CN220267598U (en) | Stone blocking drill bit suitable for rotary digging of filling layer of filling pile | |
| JP2020172850A (en) | Core material for soil cement pile, soil cement pile using the same, and method for constructing the pile | |
| CN216948240U (en) | Middle chiseling retaining wall structure for defected cast-in-place pile | |
| CN117927170B (en) | Geological exploration drilling equipment and method for constructional engineering | |
| CN219343195U (en) | Splash-proof grouting device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |