CN202337979U - Air slurry separation device and drill rod combination structure with same - Google Patents
Air slurry separation device and drill rod combination structure with same Download PDFInfo
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- CN202337979U CN202337979U CN2011203703142U CN201120370314U CN202337979U CN 202337979 U CN202337979 U CN 202337979U CN 2011203703142 U CN2011203703142 U CN 2011203703142U CN 201120370314 U CN201120370314 U CN 201120370314U CN 202337979 U CN202337979 U CN 202337979U
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Abstract
The utility model discloses an air slurry separation device and a drill rod combination structure with the same. The air slurry separation device comprises a pipe body and an air inlet structure sleeved on the periphery of the pipe body, a slurry pipe is arranged in the pipe body along the axis and in a communicated mode, an air inlet is arranged on the lateral wall of the pipe body, the inner wall of the pipe body and the slurry pipe are arranged in gap to form an annular portion, an external high pressure air pipe is communicated with the annular portion through the air inlet structure and the air inlet to form a high pressure air channel. The air slurry separation device and the drill rod combination structure with the same can provide sufficient pneumatic capacity for hole forming equipment, down-the-hole hammers when down-the-hole impacts high pressure rotary spray drill to form holes, so that ejectors have sufficient ejecting capacity and reduce the kinetic energy loss.
Description
Technical field
The utility model belongs to the construction equipment in the building foundation construction, and particularly the used gas of the construction technology of down-the-hole impulse high voltage rotary churning pile is starched separator and had the drilling rod combining structure of this device.
Technical background
High-pressure rotary jet grouting pile is used to handle the ground stabilization of the soil bodys such as mud, silt, sand, plain fill, also can be used for the soil stabilization and the curtain water stop of deep foundation ditch, subway engineering, hydraulic engineering etc.But common rotary churning pile; Because lathe turner's equipment dynamic is less, during than hard formation, quality factors such as depth of pore forming, verticality and expanded diameter can't be guaranteed at construction sand pebble soil, decomposed rock etc.; Stagnant water effect is undesirable; And because of its anti-slurry amount is bigger, waste of material such as cement are serious, and the scene workload of removing contamination is very big.
The utility model content
The purpose of the utility model provides a kind of gas slurry separator and has the drilling rod combining structure of this device, to improve or to overcome or the multinomial deficiency that above prior art exists.
The technical scheme of the utility model is: a kind of gas slurry separator; Said gas slurry separator comprises body and the sheathed air intake structure of said body periphery; Be provided with slurry pipe along the axis perforation in the said body; The sidewall of said body offers air inlet port, and said inboard wall of tube body and said slurry pipe are provided with at interval and form the annular space part, and the external high pressure air pipe line partly is communicated with formation pressure-air path through this air intake structure, air inlet port with said annular space.
Aforesaid gas slurry separator, wherein, said air intake structure comprises the housing of tubular, this housing is sheathed on the body periphery, with the annular air storage chamber that is interconnected in formation between the air inlet port of said body and external high pressure air pipe line.
Aforesaid gas slurry separator; Wherein, The air inlet port of said body and external high pressure air pipe line are for being oppositely arranged, and said air intake structure also comprises the rubber sealing structure that is arranged in this housing, and this rubber sealing structure is located at a plurality of rubber seal of this air inlet port above and below respectively.
Aforesaid gas slurry separator, wherein, said annular space part top seal, and the upper and lower end of said slurry pipe is respectively equipped with thread connecting joint.
Aforesaid gas slurry separator; Wherein, said gas slurry separator also comprises shock-damping structure, and said shock-damping structure comprises the damping rubber cushion that the body periphery is sheathed; Said damping rubber cushion is circular, and contracting in the periphery of corresponding body lower end is formed for installing the hierarchic structure of damping rubber cushion.
Aforesaid gas slurry separator; Wherein, Said gas slurry separator comprises top mounting flange that is positioned at the body top and the bottom mounting flange that is positioned at the body below; The lower, outer perimeter of said body outwards convexes with the connection boss, and this connection boss is provided with corresponding fixing hole with the bottom mounting flange, forms groove between the connection boss of said body and the bottom mounting flange of below; Said damping rubber cushion is provided with and the corresponding perforation of said fixing hole, utilizes bolt the damping rubber cushion is located in the said groove and is arranged between this connection boss and bottom mounting flange; The body lower end forms round outside but spuare inside structure, and promptly its lower end forms square inner bore, and mounting flange upper end in bottom forms the structure of square-outside and round-inside, and said bottom mounting flange square upper end suit is positioned in the square inner bore of body lower end.
Aforesaid gas slurry separator wherein, also is provided with damping spring in the perforation of said damping rubber cushion, said damping spring is set in the bolt periphery, has the gap of 1cm～2cm between this body and bottom mounting flange.
The utility model also proposes a kind of drilling rod combining structure; It is characterized in that; This drilling rod combining structure from top to bottom comprises the long spiral unit head of coaxial serial connection, foregoing gas slurry separator and drilling rod; Said high pressure airline links to each other with this air inlet port of gas slurry separator, is connected with the high-pressure slip-casting pipeline on the said long spiral unit head, and water under high pressure mud or water under high pressure are starched the slurry pipe line of separator, said drilling rod and sprayed by drill bit through the said long spiral unit head of perforation, gas.
Aforesaid drilling rod combining structure; Wherein, Said separator is threaded with the mounting flange of long spiral unit head through the top mounting flange that is positioned at the body top, and is threaded with the mounting flange of drilling rod upper end through the bottom mounting flange that is positioned at the body below.
Aforesaid drilling rod combining structure; Wherein, Said gas slurry separator is to utilize the taper screw thread of upper end band sealing to be connected with said top mounting flange, and said gas slurry separator is to utilize the concaveconvex structure of square shape to be connected with said bottom mounting flange.
The characteristics and the advantage of the utility model comprise: be that pore-forming equipment-down-the-hole hammer provides enough pneumatic abilities in the time of can guaranteeing down-the-hole impulse high voltage jet drill rig pore-forming, make its ejector that enough jet powers arranged, reduce kinetic energy rejection; In addition, the down-the-hole hammer is hammered into shape down-the-hole and also to be played cushioning effect the impact endurance test shock of long spiral unit head in the time of can also reducing long spiral down-the-hole impulse high voltage jet drill rig pore-forming; And can prolong the unit head of long spiral and the application life that the pore-forming equipment down-the-hole is hammered into shape.The pneumatic amount of gas slurry separator of the utility model is big and loss is few, easy to connect.
Description of drawings
Fig. 1 is the structural representation of gas slurry separator one specific embodiment of the utility model.
Fig. 2 A is the sectional view of gas slurry separator one specific embodiment of the utility model.
Fig. 2 B is along the cross-sectional schematic of 2-2 line among Fig. 2 A.
Fig. 2 C is the cross-sectional schematic along 3-3 line among Fig. 2 A.
Fig. 3 is the sketch map of the drilling rod combining structure of the utility model.
Fig. 4 is applied to the sketch map of a concrete application examples of down-the-hole impulse high voltage rotary jet grouting equipment for the drilling rod combining structure of the utility model.
Fig. 5 A is the structural representation of the ejector that adopted in the down-the-hole impulse high voltage rotary jet grouting equipment among Fig. 4.
Fig. 5 B is the schematic top plan view of ejector among Fig. 5 A.
The specific embodiment
As shown in Figure 1; The utility model proposes a kind of gas slurry separator; This gas slurry separator comprises body and the sheathed air intake structure 43 of said body periphery; Be provided with slurry pipe along the axis perforation in the said body, said inboard wall of tube body and said slurry pipe are provided with at interval and form the annular space part, and external high pressure air pipe line 44 partly is communicated with formation pressure-air path through this air intake structure 43 and said annular space.
Preferably, this gas slurry separator also comprises a shock-damping structure 45, to reduce the vibration influence of drill bit impact to unit head.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 1, Fig. 2 A, Fig. 2 B, Fig. 2 C; Among one embodiment of the utility model; Gas slurry separator 40 comprises body and the sheathed air intake structure 43 of said body periphery, and said body center connects along axis and is provided with slurry pipe, and the sidewall of body is radially offered one or more air inlets 432; Inboard wall of tube body and slurry pipe are provided with at interval and form the annular space part, and the external high pressure air pipe line partly is communicated with formation pressure-air path through this air intake structure, air inlet 432 with annular space.As shown in the figure, annular space part top seal, and the upper and lower end of said slurry pipe is respectively equipped with thread connecting joint 41.
Further, shown in Fig. 2 A, air intake structure 43 comprises the housing 430 of tubular, and this housing 430 is sheathed on the body periphery, between the air inlet port of body and external high pressure air pipe line, to form the annular air storage chamber 433 that is interconnected.Preferably; The air inlet of body and external high pressure air pipe line are for being oppositely arranged; Air intake structure 43 also comprises the rubber sealing structure that is arranged in this housing, and this rubber sealing structure comprises a plurality of rubber seal 431 of being located at these air inlet 432 above and belows respectively.
Further, this gas slurry separator 40 also comprises a shock-damping structure 45, through the setting of shock-damping structure, can reduce the vibration influence of drill bit impact to unit head effectively.
Particularly, in this gas slurry separator 40, slurry pipe 874 axially connects and is located in this body 400, and air intake structure 43 is located at the top of said body, and shock-damping structure 45 is located at the body bottom.Shock-damping structure 45 mainly comprises the damping rubber cushion 451 that the body periphery is sheathed; Air intake structure 43 comprises top mounting flange 42 that is positioned at the body top and the bottom mounting flange 46 that is positioned at the body below; The lower, outer perimeter of body outwards convexes with and connects boss 48; This connection boss 48 is provided with corresponding elastic mounting hole with bottom mounting flange 46; 46 of the connection boss 48 of body and the bottom mounting flanges of below form groove, and damping rubber cushion 451 is provided with and the corresponding perforation in elastic mounting hole, are arranged in 46 of this connection boss 48 and bottom mounting flanges so that utilize bolt 453 that damping rubber cushion 451 is located in the groove.
Shown in Fig. 2 A; In order further to strengthen damping effect; In the perforation of damping rubber cushion 451, also be provided with damping spring 452, damping spring 452 is set in bolt 453 peripheries, preferably; Be provided with independent damping spring 452 in the perforation of each damping rubber cushion, make each bolt 453 periphery string be provided with a plurality of damping springs 452.
In the shock-damping structure of the utility model, damping rubber cushion 431 has good sealing property, can reduce the aerodynamic loss amount, can also play cushioning effect; When whole system assembling fastening bolt, the bolt hole of 452 pairs of damping rubber cushions 451 of damping spring plays good supporting role, can reduce the impact that bring at other position simultaneously, has buffering effect.
On the basis of above-mentioned gas slurry separator; The utility model also proposes a kind of drilling rod combining structure 100; As shown in Figure 3; This drilling rod combining structure 100 from top to bottom comprises unit head 50, gas slurry separator 40 and the drilling rod 30 of coaxial serial connection, and unit head can directly adopt the unit head (hereinafter to be referred as long spiral unit head 50) of existing long-spiral drilling machine, and said gas slurry separator 40 is provided with air inlet port; High pressure airline 77 links to each other with this air inlet port; High-pressure slip-casting pipeline 87 is connected to long spiral unit head 50, and promptly the Grouting Pipe in the central tube of the pressure duct of the Grouting Pipe of grouting pump through unit head top and drilling rod is connected, and water under high pressure mud or water under high pressure are through connecting long spiral unit head 50, gas and starch the slurry pipe of separation damping device 40, drilling rod 30 and being sprayed by the refractory gunning equipment (not shown).
As shown in the figure; Preferably; Gas slurry separator is threaded with the mounting flange of long spiral unit head 50 through the top mounting flange 42 that is positioned at the body top, and is threaded with the mounting flange of drilling rod 30 upper ends through the bottom mounting flange 46 that is positioned at the body below.In addition, 401 places, said body 400 upper ends form taper screw thread structure, to be tightly connected mutually with top mounting flange 42; 402 places, body 400 lower ends form round outside but spuare inside structure; Be that its lower end forms square inner bore 403; And mounting flange 46 upper ends 462 in bottom form the structure of square-outside and round-inside, so that bottom mounting flange 46 upper ends 462 suits are positioned body 400 lower ends 402, please refer to shown in Fig. 1, Fig. 2 A.
The slurry pipe line that provides in the drilling rod combining structure of the utility model can adopt tubular structures such as high-pressure hose or seamless steel pipe, preferably adopts high-pressure hose, when reducing drill bit impact to the influence of slurry pipe line.
The drilling rod combining structure of the utility model can be applied to down-the-hole impulse high voltage rotary jet grouting equipment, and shown in Fig. 4 to Fig. 5 B, this equipment comprises borer frame, drilling rod combining structure, refractory gunning equipment, drill bit, pressure-air feeding pipe and high-pressure slip-casting pipeline; Wherein said borer frame adopts long-spiral drilling machine frame 90, and drill bit adopts down-the-hole hammering blow device 10, and said drilling rod combining structure inside is provided with and connects to the slurry pipe of drill bit and the annular space shape pressure-air path in the outside thereof; Pressure-air arrives drill bit through the pressure-air path of drilling rod combining structure, drives down-the-hole hammering blow device; The high-pressure slip-casting pipeline is connected to the top of drilling rod combining structure, and water under high pressure mud or water under high pressure arrive refractory gunning equipment through the slurry pipe that is arranged in the drilling rod combining structure.
Owing to adopt the hidden hole drilling construction, need not the soil at the bottom of the hole is discharged, therefore, the drilling rod combining structure is preferably and adopts oil drilling drilling rod 30, and promptly periphery is with the polished rod of blade, but not the long screw drill rod that has helical blade that former long-spiral drilling machine adopts usually.
In the utility model, be, preferably, have the pressure that is not less than 2.0MPa as the pressure-air that drives power with the driving power of pressure-air as down-the-hole hammering blow device 10.In the preferred embodiment of the utility model, high pressure airline 77 links to each other with high-power air compressor machine 71, preferably, also is provided with the grease-box 72 (seeing also shown in Figure 4) of down-the-hole hammering blow device on this high pressure airline 77; High-pressure slip-casting pipeline 87 links to each other with high-pressure pump 86; And high-pressure pump 86 connects cement paste pulping system and water supply installation, and particularly, this cement paste pulping system comprises grout-stirring barrel 81, filter pulp bucket 82, slurry storing tank 83; Water supply installation comprises water butt 84; Slurry storing tank 83 is connected with high-pressure pump 86 through pulp-water control valve 85 with water butt 84, so that can be connected to the drilling rod upper end through pipeline, water under high pressure or water under high pressure mud is provided.
In the utility model; This refractory gunning equipment is used for combining with said air hammer; Shown in Fig. 5 A, Fig. 5 B, this refractory gunning equipment is an ejector 20, is used for fixing the upper end at down-the-hole hammering blow device 10; Ejector 20 comprises center slurry pipe 29 and the peripheral annular space shape pressure-air path 28 of center slurry pipe that extends vertically; Slurry pipe 29 upper ends in center are connected with the slurry pipe that connects said drilling rod combining structure through high-pressure slip-casting union 21 and communicate, and ejector 20 sidewalls offer the side direction slurries spout that is connected with center slurry pipe 29, and the pressure-air path 28 of said ejector 20 communicates with the pressure-air path at drilling rod combining structure center; And the other end communicates with impactor 10, for impactor 10 provides driving power.
Further; The upper and lower end of ejector 20 is to utilize top jointing 22 to be connected with drilling rod lower end, impactor upper end with bottom jointing 25 respectively; Preferably; Top jointing 22 adopts taper screw thread structure with bottom jointing 25, in fixing and connection, reliable sealing to be provided.Shown in Fig. 5 B, the top of said ejector 20 is provided with the fixed mount (or fixed head) 26 that is used for fixing slurry pipe 29, forms the space between this fixed mount 26 and ejector 20 inwalls, with as the pressure-air path.
Shown in Fig. 5 A, Fig. 5 B, be equiped with high pressure nozzle 23 in the spout of ejector sidewall, nozzle 23 can be connected easy accessibility with the center slurry pipe of ejector central authorities through seamless steel pipe.In one specific embodiment of the utility model, this high pressure nozzle 23 adopts hollow hard high-strength bolt 230, and this bolt 230 is spirally connected with aforementioned seamless steel pipe; And be inlaid with the neck bush 231 of carbide alloy in this high pressure nozzle 23; Neck bush 231 is outside high pressure nozzle 23 axially extend out to high pressure nozzle 23, and preferably, the wall thickness of neck bush 231 is not less than 1mm; Can bear high pressure and wear-resisting, and be difficult for stopping up.Nozzle diameter can adopt 1.8,2.0,2.2 types according to construction technical requirement.
In the utility model; Position, direction and the quantity of nozzle can be set according to actual needs; Preferably, the different angles that ejector 20 is radially gone up are provided with two to three groups of nozzles at various height, and every group of nozzle comprises two nozzles up and down at least; And the axis projection position of each nozzle does not coincide, and is preferably even interval and is provided with.In the specific embodiment as shown in the figure; Two groups of nozzles about this ejector 20 is provided with dorsad; Promptly two groups of nozzle spaces 180 are spent; Wherein one group of nozzle location in left side on the lower side, one group of nozzle location on right side slightly leans on the top, can be issued to uniform churning effect in the prerequisite that guarantees ejector rigidity like this.
Because the nozzle that existing high-pressure injection technology is adopted is more single, the direction basic fixed, and; Therefore nozzle and ejector are that one combines, or even are combined on the drill bit; The cost of each integral replacing is higher; Nozzle life is shorter during single reparation, and the nozzle setting is prone to plugging, and the nozzle setting natural conditions and the technical standard of pore-forming more after a little while has certain limitation.The utility model utilization has the ejector of said nozzle, not only the nozzle life cycle long, and change easyly, intermediate link is few, has avoided the risk that when changing and repair, causes other positions to damage simultaneously.
In the above-mentioned application, rig partly adopts long-spiral drilling machine frame (not containing the long screw drill rod part), and drilling rod adopts the oil drilling drilling rod, and the external diameter of drilling rod is preferably 90mm～300mm (for example 142mm), and bit part is an air hammer.The quality of machinery integral is easy to control, and quality stability is good, and accessory is complete, convenient for maintaining.The long-spiral drilling machine frame is stablized, frame height, and power is strong, and guidance quality is good, and efficient is high; Drilling rod rigidity is strong, adopts the conessi of band sealing to connect, and guidance quality is good, and is solid durable; The Pneumatic immpacting drill bit has initiatively impact capacity, and drilling efficiency is high, and is strong to hard block, rock or hard formation (pebble layer) handling capacity, and correcting is effective, is easy to control the drilling rod verticality.
The said equipment compliance when concrete the application is strong; Only need the long screw drill rod of long-spiral drilling machine partly is replaced by the oil drill rocker part through improvement processing of the utility model; Pressure duct is connected to drilling rod top, and wherein one the tunnel is pressure-air, and another road is water under high pressure mud or water under high pressure; Pressure-air directly arrives drill bit through drilling rod, the driving impact device; High pressure slurry or water arrive the whitewashing system through the pipeline that is arranged in the drilling rod.Pressure-air is provided by high-power air compressor machine, and high pressure slurry or water are provided by high-pressure pump, and high-pressure pump connects cement paste pulping system and supply channel.
During construction, creep in placely, start drilling rod (rotation); To drill bit (impactor) pressure-air is provided, to shower nozzle water under high pressure is provided, impactor is started working under high pressure air drives; Under impact, vibration and pressure-air effect; Bit part sinks to creeping into while destroying the soil body, when running into firm hard formation or block, and direct impact grinding.When creeping into, the shower nozzle on drill bit top is side direction (vertical drilling direction) inject high pressure current under the pressure of about 20MPa, the softening soil body of cutting.
Bore through carrying repeatedly boring down; Make around the drilling rod soil body in the certain limit fully softening, inject high pressure water is switched to gunite, bore through carrying repeatedly up and down boring down again; Soil and cement paste are fully mixed, process cement earth pile (or cement-soil solidifying body of other shapes).
The technology of the utility model has novelty; Impactor produces certain vibratory impulse effect in impacting the sinking process; The impactor head sprays a large amount of pressure-airs; Vibration and pressure-air have certain destruction to soil structures, for impactor top high-pressure water jet cutting soil plays booster action.The vibration effect of impactor is to the softening booster action that plays of the soil body behind the water under high pressure entering soil body.For next step gunite provides condition, the scope that cement paste is sprayed strengthens to the cutting damage of the soil body for water under high pressure, gas and vibration, and cement paste is more abundant with the mixing of soil.
The utility model is with the previous embodiment illustrated in detail, so that understand characteristic and the operational improvement that is used to provide these reinforcements fully.In addition, it is also understood that structural feature that these are additional and operations improvement uses of can using separately or mutually combine, and perhaps combine the above-mentioned all characteristics and the explanation of the embodiment shown in element and the accompanying drawing separately.Therefore, should be appreciated that the utility model is not limited to any concrete characteristic or the combination of element, and any desired characteristic combination described here can both not departed from the protection domain of the utility model by enforcement.
Claims (10)
1. a gas is starched separator; It is characterized in that; Said gas slurry separator comprises body and the sheathed air intake structure of said body periphery, is provided with slurry pipe along the axis perforation in the said body, and the sidewall of said body offers air inlet port; Said inboard wall of tube body and said slurry pipe are provided with at interval and form the annular space part, and the external high pressure air pipe line partly is communicated with formation pressure-air path through this air intake structure, air inlet port with said annular space.
2. gas as claimed in claim 1 slurry separator is characterized in that said air intake structure comprises the housing of tubular, and this housing is sheathed on the body periphery, with the annular air storage chamber that is interconnected in formation between the air inlet port of said body and external high pressure air pipe line.
3. gas slurry separator as claimed in claim 1; It is characterized in that; The air inlet port of said body and external high pressure air pipe line are for being oppositely arranged; Said air intake structure also comprises the rubber sealing structure that is arranged in this housing, and this rubber sealing structure is located at a plurality of rubber seal of this air inlet port above and below respectively.
4. gas slurry separator as claimed in claim 1 is characterized in that, said annular space part top seal, and the upper and lower end of said slurry pipe is respectively equipped with thread connecting joint.
5. gas slurry separator as claimed in claim 1; It is characterized in that; Said gas slurry separator also comprises shock-damping structure; Said shock-damping structure comprises the damping rubber cushion that the body periphery is sheathed, and said damping rubber cushion is circular, and contracting in the periphery of corresponding body lower end is formed for installing the hierarchic structure of damping rubber cushion.
6. gas slurry separator as claimed in claim 5; It is characterized in that; Said gas slurry separator comprises top mounting flange that is positioned at the body top and the bottom mounting flange that is positioned at the body below; The lower, outer perimeter of said body outwards convexes with the connection boss, and this connection boss is provided with corresponding fixing hole with the bottom mounting flange, forms groove between the connection boss of said body and the bottom mounting flange of below; Said damping rubber cushion is provided with and the corresponding perforation of said fixing hole, utilizes bolt the damping rubber cushion is located in the said groove and is arranged between this connection boss and bottom mounting flange; The body lower end forms round outside but spuare inside structure, and promptly its lower end forms square inner bore, and mounting flange upper end in bottom forms the structure of square-outside and round-inside, and said bottom mounting flange square upper end suit is positioned in the square inner bore of body lower end.
7. gas slurry separator as claimed in claim 6 is characterized in that also be provided with damping spring in the perforation of said damping rubber cushion, said damping spring is set in the bolt periphery, has the gap of 1cm～2cm between this body and bottom mounting flange.
8. drilling rod combining structure; It is characterized in that; This drilling rod combining structure from top to bottom comprises the long spiral unit head of coaxial serial connection, like claim 1～7 each described gas slurry separator and drilling rod; Said high pressure airline links to each other with this air inlet port of gas slurry separator, is connected with the high-pressure slip-casting pipeline on the said long spiral unit head, and water under high pressure mud or water under high pressure are starched the slurry pipe line of separator, said drilling rod and sprayed by drill bit through the said long spiral unit head of perforation, gas.
9. drilling rod combining structure as claimed in claim 8; It is characterized in that; Said separator is threaded with the mounting flange of long spiral unit head through the top mounting flange that is positioned at the body top, and is threaded with the mounting flange of drilling rod upper end through the bottom mounting flange that is positioned at the body below.
10. drilling rod combining structure as claimed in claim 9; It is characterized in that; Said gas slurry separator is to utilize the taper screw thread of upper end band sealing to be connected with said top mounting flange, and said gas slurry separator is to utilize the concaveconvex structure of square shape to be connected with said bottom mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203703142U CN202337979U (en) | 2011-06-17 | 2011-09-29 | Air slurry separation device and drill rod combination structure with same |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110163828 | 2011-06-17 | ||
| CN201110163828.5 | 2011-06-17 | ||
| CN2011203703142U CN202337979U (en) | 2011-06-17 | 2011-09-29 | Air slurry separation device and drill rod combination structure with same |
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| CN202337979U true CN202337979U (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203750603U Withdrawn - After Issue CN202337976U (en) | 2011-06-17 | 2011-09-29 | In-hole impact high-pressure jet grouting equipment |
| CN201110298252.3A Active CN102418344B (en) | 2011-06-17 | 2011-09-29 | Injector, drill bit combination structure and combination drilling tool |
| CN2011203701151U Withdrawn - After Issue CN202337983U (en) | 2011-06-17 | 2011-09-29 | Ejector, drill combination structure and combination drilling tools |
| CN201110293700.0A Active CN102322058B (en) | 2011-06-17 | 2011-09-29 | Construction process and equipment for downhole impacting high-pressure jet grouting pile |
| CN2011203703142U Expired - Lifetime CN202337979U (en) | 2011-06-17 | 2011-09-29 | Air slurry separation device and drill rod combination structure with same |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203750603U Withdrawn - After Issue CN202337976U (en) | 2011-06-17 | 2011-09-29 | In-hole impact high-pressure jet grouting equipment |
| CN201110298252.3A Active CN102418344B (en) | 2011-06-17 | 2011-09-29 | Injector, drill bit combination structure and combination drilling tool |
| CN2011203701151U Withdrawn - After Issue CN202337983U (en) | 2011-06-17 | 2011-09-29 | Ejector, drill combination structure and combination drilling tools |
| CN201110293700.0A Active CN102322058B (en) | 2011-06-17 | 2011-09-29 | Construction process and equipment for downhole impacting high-pressure jet grouting pile |
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- 2011-09-29 CN CN2011203750603U patent/CN202337976U/en not_active Withdrawn - After Issue
- 2011-09-29 CN CN201110298252.3A patent/CN102418344B/en active Active
- 2011-09-29 CN CN2011203701151U patent/CN202337983U/en not_active Withdrawn - After Issue
- 2011-09-29 CN CN201110293700.0A patent/CN102322058B/en active Active
- 2011-09-29 CN CN2011203703142U patent/CN202337979U/en not_active Expired - Lifetime
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| CN107060646A (en) * | 2017-06-27 | 2017-08-18 | 张家港保税区永大机械有限公司 | High-pressure rotary-spray unit head |
| CN107060646B (en) * | 2017-06-27 | 2023-09-15 | 张家港保税区永大机械有限公司 | High-pressure rotary spraying power head |
| CN113833467A (en) * | 2021-10-19 | 2021-12-24 | 中勘资源勘探科技股份有限公司 | Method for solving rock burst of coal field mining area through grouting filling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102418344A (en) | 2012-04-18 |
| CN202337983U (en) | 2012-07-18 |
| CN102418344B (en) | 2014-02-19 |
| CN102322058A (en) | 2012-01-18 |
| CN202337976U (en) | 2012-07-18 |
| CN102322058B (en) | 2013-09-25 |
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Address after: 100085 Beijing City, Haidian District Xisanqi No. 1 8 floor Patentee after: Beijing Rong Chuangyan soil engineering Limited by Share Ltd Address before: 100085 Beijing City, Haidian District Xisanqi No. 1 8 floor Patentee before: Beijing Rongchuang Kehong Rock and Soil Engineering Limited Corporation |
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Granted publication date: 20120718 |