CN216765858U - High-pressure rotary spraying grouting device - Google Patents

Abstract

The application relates to a high-pressure rotary jet grouting device, which comprises a machine body, and further comprises a slurry conveying assembly, a sleeve, a drill rod, a connecting pipe and a drill bit assembly, wherein the machine body is used for driving the drill rod to rotate, the drill rod is arranged in a hollow mode, the sleeve is connected in a cavity of the drill rod in a rotating mode, the slurry conveying assembly comprises at least three slurry conveying pipes, the slurry conveying pipes are arranged in the sleeve, the axial direction of each slurry conveying pipe is the same as that of the sleeve, the connecting pipe is coaxially arranged at one end, far away from the machine body, of the drill rod, jet holes are formed in the side wall of the connecting pipe, the slurry conveying pipes are communicated with the connecting pipe, and the drill bit assembly is detachably connected at one end, far away from the drill rod, of the connecting pipe; the slurry is conveyed to the connecting pipe through the slurry conveying pipe, the slurry in the connecting pipe is quickly mixed, and the slurry is sprayed immediately after being fully mixed under the action of high pressure of the machine body, so that the blockage of a grouting channel is avoided.

Description

High-pressure rotary spraying grouting device

Technical Field

The application relates to the technical field of concrete processing equipment, in particular to a high-pressure rotary spraying grouting device.

Background

In the construction operation ground pile pouring, a grouting process is usually involved, wherein the grouting process is to pressurize slurry in a pipeline by using a grouting pump so as to inject the slurry under high pressure to form a ground pile and finish the ground pile pouring; in the concrete pile pouring operation, under the condition of complex construction foundation, water glass, calcium chloride and the like are usually mixed and injected with the slurry, so that higher strength and bearing capacity are improved.

The patent document with the application number of 200920145290.3 discloses a long-spiral high-pressure jet grouting stirring pile forming device, which comprises a hollow drill rod on a main frame, a rotary grouting joint, a high-pressure slurry conveying pipe, a cement slurry conveying pipe, a high-pressure cement grouting pump, a nozzle drill bit device, a stirring blade and a drilling machine power head; the hollow drill rod is fixed on a drill power head through a rotary grouting joint connected to the top of the hollow drill rod, a high-pressure slurry conveying pipe is attached to the inside of the hollow drill rod, the bottom of the hollow drill rod is connected with a nozzle drill bit device fixed at the end part of the hollow drill rod, the top of the hollow drill rod is connected with a high-pressure cement grouting pump through the rotary grouting joint and a cement slurry conveying pipe, 1-3 nozzles are arranged at two wing ends of the nozzle drill bit device respectively, and stirring blades are welded at the bottom and the side face of the drill bit; the cement slurry is pressurized by a high-pressure cement grouting pump, then passes through a cement slurry conveying pipe, a rotary grouting joint and a high-pressure slurry conveying pipe attached to the inside of the hollow drill rod, and is sprayed out from a nozzle on a nozzle drill bit device.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when the ground pile is grouted, the cement paste is mixed with water glass, calcium chloride and the like, the solidification of the cement paste can be accelerated, when the cement paste is injected by a high-pressure cement pump, the mixed grouting liquid is easy to solidify in a grouting pipe, and the blockage of a grouting channel is easy to cause.

Disclosure of Invention

In order to avoid the blockage of a grouting channel, the application provides a high-pressure rotary spraying grouting device.

The following technical scheme is adopted:

the utility model provides a high pressure jet grouting device, includes the organism, still includes defeated thick liquid subassembly, sleeve pipe, drilling rod, connecting pipe and drill bit subassembly, the drilling rod is located on the organism, the organism is used for ordering about the drilling rod rotates, the drilling rod is the cavity setting, the sleeve pipe rotate connect in the cavity of drilling rod, defeated thick liquid subassembly includes at least three defeated thick liquid pipe, defeated thick liquid pipe is located in the sleeve pipe, defeated thick liquid pipe axial with the sheathed tube axial is the same, the coaxial locating of connecting pipe the one end of organism is kept away from to the drilling rod, the jet hole has been seted up to the connecting pipe lateral wall, defeated thick liquid pipe with the connecting pipe intercommunication, drill bit subassembly can dismantle connect in the one end that the drilling rod was kept away from to the connecting pipe.

By adopting the technical scheme, when grouting is needed, the machine body is driven, the drill rod is driven to rotate under the driving of the machine body, the drill bit inlet assembly is driven to rotate at the same time, the drill bit assembly starts to drill a building surface, then the water glass, the calcium chloride and the cement slurry are respectively injected into respective slurry conveying pipes, the three types of slurry are introduced into the connecting pipe along with the slurry conveying pipes, the slurry is mixed in the connecting pipe under the high pressure of the machine body, the mixed slurry is spirally ejected out from the injection holes, and the grouting operation is completed along with the movement of the drill rod; defeated thick liquid subassembly carries the thick liquid to the connecting pipe, and the thick liquid rapid mixing in the connecting pipe, the high pressure effect of rethread organism for thick liquids intensive mixing back, the material that spouts is penetrated soon immediately, has avoided because the jam that leads to the slip casting passageway is condensed rapidly after water glass, calcium chloride and the grout mixes.

Optionally, the inner wall of the drill rod is provided with a rotating ring, the sleeve is provided with a rotating groove matched with the rotating ring, and the rotating ring extends into the rotating groove and is rotatably connected with the sleeve.

By adopting the technical scheme, when grouting is needed, the machine body drives the drill rod to rotate, so that the sleeve arranged in the rotating rod also rotates in the drill rod; the rotating ring and the rotating groove of design cooperate each other for the sleeve pipe rotates in going on in the drilling rod, and the effectual drilling rod of having guaranteed can normal work at the pivoted in-process, has prevented to have ensured going on smoothly of defeated thick liquid operation because of the rotation of drilling rod to defeated thick liquid pipe influence.

Optionally, the slurry conveying pipe further comprises fixing plates, the fixing plates are respectively arranged at two ends in the sleeve, and the slurry conveying pipe penetrates through the fixing plates.

By adopting the technical scheme, when different sizing agents are introduced into the connecting pipe along the sizing pipe, the fixing plate blocks the backflow sizing agents; the fixed plate of design can fix spacingly to a plurality of defeated thick liquid pipes on the one hand, has guaranteed going on smoothly of defeated thick liquid operation, and on the other hand has also guaranteed to block the thick liquid of backward flow in defeated thick liquid under the high pressure.

Optionally, the drilling rod further comprises a supporting plate, a disassembly opening is formed in one end, far away from the drilling rod, of the connecting pipe, and the supporting plate is arranged at the disassembly opening.

By adopting the technical scheme, after long-time grouting operation, the lower supporting plate is disassembled, so that the connecting pipe is opened, and the connecting pipe is cleaned; the backup pad of design can realize wasing the connecting pipe after long-time slip casting operation through dismantling for thick liquids after the mixture can not be to the jet orifice jam in the connecting pipe, have guaranteed the smoothness of slip casting operation.

Optionally, the sealing device further comprises a sealing piece, the sealing piece comprises a piston and an elastic piece, the piston is connected in the connecting pipe in a sliding mode, the elastic piece is arranged in the connecting pipe, and the elastic piece can drive the piston to slide up and down.

By adopting the technical scheme, when the slurry flows into the connecting pipe from the slurry conveying pipe, the elastic piece drives the piston to slide downwards in the connecting pipe under the action of pressure, and the jet hole is opened, so that the mixed slurry is jetted out from the jet hole; the shutoff piece of design orders about the piston through the elastic component and slides from top to bottom in the connecting tube, has guaranteed the leakproofness of device for thick liquid under defeated thick liquid pipe flow can be better erupt from the jet orifice under the high-pressure effect, has ensured the effect of slip casting.

Optionally, the elastic element is a return spring, one end of the return spring is arranged on the support plate, and the other end of the return spring is connected with the piston.

By adopting the technical scheme, when the slurry flows into the connecting pipe from the slurry conveying pipe, the return spring drives the piston to slide downwards in the connecting pipe under the action of pressure, the jet hole is opened, and the mixed slurry is jetted out from the jet hole; the reset spring of design orders about the piston and slides from top to bottom in the connecting tube, has guaranteed the leakproofness of device for thick liquid under defeated thick liquid pipe flow can be better erupt from the jet orifice under the high-pressure effect, has ensured the effect of slip casting.

Optionally, the drill bit subassembly includes fixed station, round pin body and drill bit, the fixed station is coaxial to be located the drill bit is close to the one end of connecting pipe, seted up on the connecting pipe with fixed station matched with fixed slot, the fixed station stretches into the fixed slot, the round pin body be used for right the connecting pipe and fix between the fixed station.

Through adopting above-mentioned technical scheme, after the drill bit uses the longer time, when needing to change the drill bit, pull out the round pin body, the drill bit moves down, make the fixed station of drill bit break away from the fixed slot, take off the drill bit, then change the drill bit, the drill bit subassembly of design, through stretching into the fixed slot with the fixed station, the rethread round pin body is fixed connecting pipe and fixed station, make the drill bit can dismantle, guaranteed the drill bit when long-time operation, change that can be quick, the effectual brill that ensures the drill bit moves the effect.

Optionally, the diameter of the drill bit is not smaller than the diameters of the drill rod and the connecting pipe.

By adopting the technical scheme, when grouting is needed, the machine body drives the drill rod to rotate so as to drive the drill bit to drill a building, and the drill rod slowly extends into a drill bit drilling channel to start grouting; the designed diameter of the drill bit is not smaller than the diameters of the drill rod and the connecting pipe, so that the drill bit is ensured to be smoothly introduced in the drilling process, and the grouting operation is effectively ensured to be smoothly carried out.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a designed high-pressure rotary spraying grouting device; the slurry is conveyed to the connecting pipe through the slurry conveying pipe, the slurry in the connecting pipe is quickly mixed, and the slurry is sprayed immediately after being fully mixed under the action of high pressure of the machine body, so that the blockage of a grouting channel is avoided.

2. A designed high-pressure rotary spraying grouting device; through the mutual cooperation of rotating ring and rotating groove for the sleeve pipe rotates in going on in the drilling rod, and the effectual drilling rod of having guaranteed can normal work at the pivoted in-process, and the rotation of having prevented because of the drilling rod has ensured going on smoothly of defeated thick liquid operation to defeated thick liquid pipe production influence.

3. A designed high-pressure rotary spraying grouting device; the piston is driven to slide up and down in the connecting pipe through the reset spring, the sealing performance of the device is guaranteed, slurry under the slurry conveying pipe flow can be sprayed out from the spray hole under the high-pressure effect, and the grouting effect is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of an overall high-pressure jet grouting device according to an embodiment of the present application.

Fig. 2 is a sectional view of a high-pressure rotary jetting grouting device according to an embodiment of the present application.

Fig. 3 is an enlarged view of part a of fig. 2.

Fig. 4 is an enlarged schematic view of a portion B of fig. 2.

Reference numerals: 1. a body; 11. a drill stem; 11. a rotating ring; 2. a slurry delivery assembly; 21. a pulp conveying pipe; 3. a sleeve; 31. a rotating groove; 32. a fixing plate; 4. a connecting pipe; 41. a disassembly port; 42. a support plate; 43. fixing grooves; 44. an injection hole; 5. a drill bit assembly; 51. a drill bit; 52. a fixed table; 53. a pin body; 6. a blocking member; 61. a piston; 62. an elastic member.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a high-pressure jet grouting device.

Referring to fig. 1, 2 and 3, a high-pressure rotary jetting grouting device comprises a machine body 1, a slurry conveying assembly 2, a sleeve 3, a drill rod 11, a connecting pipe 4 and a drill bit assembly 5, wherein the drill rod 11 is arranged in a hollow manner, the drill rod 11 is installed on the machine body 1, the machine body 1 is used for driving the drill rod 11 to rotate, the drill rod 11 is driven to rotate by a power device of the machine body 1, the sleeve 3 is rotatably connected in a cavity of the drill rod 11, a rotating ring 12 is welded on the inner wall of the drill rod 11, a rotating groove 31 matched with the rotating ring 12 is formed in the sleeve 3, the rotating ring 12 extends into the rotating groove 31 and is rotatably connected with the sleeve 3, and the designed rotating ring 12 and the rotating groove 31 are matched with each other, so that the sleeve 3 rotates in the drill rod 11, the drill rod 11 is effectively ensured to operate normally in a rotating process, and the slurry conveying pipe 21 is prevented from being influenced by the rotation of the drill rod 11, the smooth operation of the slurry conveying operation is ensured;

referring to fig. 2, the slurry conveying assembly 2 includes at least three slurry conveying pipes 21, the number of the slurry conveying pipes 21 may be three, four, five, but all the time you can realize the conveying function of the slurry, the number of the slurry conveying pipes 21 in the embodiment of the present application is three, the slurry conveying assembly further includes fixing plates 32, the fixing plates 32 are respectively welded at two ends in the casing 3, the designed fixing plates 32 can fix and limit the plurality of slurry conveying pipes 21 on one hand, so as to ensure the smooth operation of the slurry conveying operation, and on the other hand, so as to ensure that the slurry flowing back is blocked during the high-pressure slurry conveying, the slurry conveying pipes 21 penetrate through the fixing plates 32, and the slurry conveying pipes 21 are installed in the casing 3, and the axial direction of the slurry conveying pipes 21 is the same as the axial direction of the casing 3.

Referring to fig. 2 and 4, the connecting pipe 4 is coaxially welded at one end of the drill rod 11, which is far away from the machine body 1, the diameter of the connecting pipe 4 is the same as that of the drill rod 11, the side wall of the connecting pipe 4 is provided with an injection hole 44, the slurry conveying pipe 21 is communicated with the connecting pipe 4, three types of slurry are introduced into the connecting pipe 4 along with the slurry conveying pipe 21, the slurry is mixed in the connecting pipe 4 under the high pressure of the machine body 1, the mixed slurry is sprayed out from the injection hole 44 in a rotating manner, and the grouting operation is completed along with the movement of the drill rod 11; still include the backup pad 42, the one end that connecting pipe 4 kept away from drilling rod 11 has been seted up and has been dismantled mouth 41, backup pad 42 threaded connection dismantles mouth 41 department, and the backup pad 42 of design can realize wasing connecting pipe 4 after long-time slip casting operation through dismantling for thick liquids after the mixture can not block up the jet orifice 44 in the connecting pipe 4, has guaranteed the smoothness of slip casting operation.

Referring to fig. 2 and 4, still include shutoff piece 6, shutoff piece 6 includes piston 61 and elastic component 62, piston 61 sliding connection is in connecting pipe 4, elastic component 62 is located in connecting pipe 4, and elastic component 62 can order about piston 61 to slide from top to bottom, order about piston 61 to slide from top to bottom in connecting pipe 4 through elastic component 62, the leakproofness of device has been guaranteed, make the thick liquid that flows down at defeated thick liquid pipe 21 can better spout from jet orifice 44 under the high pressure effect, the effect of slip casting has been guaranteed, elastic component 62 is specifically reset spring, reset spring one end welding is on backup pad 42, the other end and piston 61 welding.

Referring to fig. 2, 3 and 4, the drill bit assembly 5 is detachably connected to one end of the connecting pipe 4 far away from the drill rod 11, the drill bit assembly 5 includes a fixing table 52, a pin body 53 and a drill bit 51, the fixing table 52 is coaxially welded at one end of the drill bit 51 close to the connecting pipe 4, the connecting pipe 4 is provided with a fixing groove 43 matched with the fixing table 52, the fixing table 52 extends into the fixing groove 43, and then the connecting pipe 4 and the fixing table 52 are fixed by the pin body 53, so that the drill bit 51 can be detached, thereby ensuring that the drill bit 51 can be quickly replaced during long-time operation, effectively ensuring the drilling effect of the drill bit 51, the pin body 53 is used for fixing the connecting pipe 4 and the fixing table 52, the diameter of the drill bit 51 is not smaller than the diameters of the drill rod 11 and the connecting pipe 4, and the designed diameter of the drill bit 51 is not smaller than the drill rod 11 and the connecting pipe 4, the drilling rod 11 and the connecting pipe 4 can be smoothly led in during the drilling process of the drill bit 51, and the grouting operation is effectively ensured to be smoothly carried out.

The implementation principle of the high-pressure jet grouting device in the embodiment of the application is as follows: when grouting is needed, the machine body 1 is driven, the drill rod 11 is driven to rotate under the drive of the machine body 1, the casing pipes 3 arranged inside the rotary rod also rotate inside the drill rod 11, the drill bit 51 is driven to rotate at the same time, the drill bit 51 starts to drill the building surface, then water glass, calcium chloride and cement slurry are respectively injected into respective slurry conveying pipes 21, the three types of slurry are introduced into the connecting pipe 4 along with the slurry conveying pipes 21, the slurry is mixed in the connecting pipe 4 under the high pressure of the machine body 1, the elastic piece 62 drives the piston 61 to slide downwards in the connecting pipe 4 under the action of the pressure, the injection hole 44 is opened, and the mixed slurry is injected out from the injection hole 44; when different slurry is introduced into the connecting pipe 4 along the slurry conveying pipe 21, the fixing plate 32 blocks the slurry flowing back; the designed fixing plate 32 can fix and limit the plurality of slurry conveying pipes 21 on one hand, so that the smooth operation of slurry conveying operation is ensured, and on the other hand, the backflow slurry is also ensured to be blocked in the process of high-pressure slurry conveying; the mixed slurry is sprayed out from the spraying hole 44 in a rotating mode, and grouting operation is completed along with movement of the drill rod 11; after the long-time grouting operation, the lower supporting plate 42 is disassembled, so that the connecting pipe 4 is opened, and the connecting pipe 4 is cleaned; when the drill 51 needs to be replaced after a long period of use, the pin body 53 is pulled off, the drill 51 is moved downward so that the fixing table 52 of the drill 51 is separated from the fixing groove 43, the drill 51 is removed, and then the drill 51 is replaced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a high pressure jet grouting device, includes organism (1), its characterized in that: also comprises a slurry conveying component (2), a casing pipe (3), a drill rod (11), a connecting pipe (4) and a drill bit component (5), the drill rod (11) is arranged on the machine body (1), the machine body (1) can drive the drill rod (11) to rotate, the drill rod (11) is arranged in a hollow way, the sleeve (3) is rotationally connected in a cavity of the drill rod (11), the slurry conveying component (2) comprises at least three slurry conveying pipes (21), the slurry conveying pipes (21) are arranged in the sleeve (3), the axial direction of the slurry conveying pipe (21) is the same as the axial direction of the sleeve (3), the connecting pipe (4) is coaxially arranged at one end of the drill rod (11) far away from the machine body (1), the side wall of the connecting pipe (4) is provided with a jet hole (44), the pulp conveying pipe (21) is communicated with the connecting pipe (4), the drill bit assembly (5) is arranged at one end, far away from the drill rod (11), of the connecting pipe (4).

2. The high-pressure rotary jetting grouting device according to claim 1, characterized in that: the inner wall of the drill rod (11) is provided with a rotating ring (12), the sleeve (3) is provided with a rotating groove (31) matched with the rotating ring (12), and the rotating ring (12) extends into the rotating groove (31) and is rotationally connected with the sleeve (3).

3. The high-pressure rotary jetting grouting device according to claim 1, characterized in that: the slurry conveying pipe is characterized by further comprising fixing plates (32), wherein the fixing plates (32) are respectively arranged at two ends in the sleeve (3), and the slurry conveying pipe (21) penetrates through the fixing plates (32).

4. The high-pressure rotary jetting grouting device according to claim 1, characterized in that: the drill rod drilling device is characterized by further comprising a supporting plate (42), wherein a disassembling opening (41) is formed in one end, far away from the drill rod (11), of the connecting pipe (4), and the supporting plate (42) is arranged at the disassembling opening (41).

5. The high-pressure rotary jetting grouting device according to claim 4, characterized in that: still include shutoff piece (6), shutoff piece (6) include piston (61) and elastic component (62), piston (61) sliding connection in connecting pipe (4), elastic component (62) are located in connecting pipe (4), just elastic component (62) can order about piston (61) slides from top to bottom.

6. The high-pressure rotary jetting grouting device according to claim 5, characterized in that: the elastic piece (62) is a return spring, one end of the return spring is arranged on the supporting plate (42), and the other end of the return spring is connected with the piston (61).

7. The high-pressure rotary jetting grouting device as claimed in claim 1, wherein: drill bit subassembly (5) are including fixed station (52), round pin body (53) and drill bit (51), fixed station (52) are coaxial to be located drill bit (51) are close to the one end of connecting pipe (4), seted up on connecting pipe (4) with fixed station (52) matched with fixed slot (43), fixed station (52) stretch into fixed slot (43), round pin body (53) are used for right connecting pipe (4) and fix between fixed station (52).

8. The high-pressure rotary jetting grouting device according to claim 7, characterized in that: the diameter of the drill bit (51) is not less than the diameter of the drill rod (11) and the connecting pipe (4).

Images