CN115488144A - In-situ repair device and equipment for double-pipe double-channel liquid adding, powder spraying and stirring - Google Patents
In-situ repair device and equipment for double-pipe double-channel liquid adding, powder spraying and stirring Download PDFInfo
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- CN115488144A CN115488144A CN202211161839.4A CN202211161839A CN115488144A CN 115488144 A CN115488144 A CN 115488144A CN 202211161839 A CN202211161839 A CN 202211161839A CN 115488144 A CN115488144 A CN 115488144A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/002—Reclamation of contaminated soil involving in-situ ground water treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention provides a double-pipe double-channel liquid-adding, powder-spraying and stirring in-situ remediation device and equipment, and relates to the technical field of soil and underground water remediation, wherein the in-situ remediation device comprises: the double-pipe flow divider comprises a central pipe and an outer pipe which form a double-layer pipeline structure, a powder feeding pipe connected with the central pipe, and a liquid medicine feeding pipe connected with the outer pipe; the double-pipe drill rod comprises a drill rod body and a high-pressure hose; and the double-channel stirring drill bit comprises a drill bit rod body, a drill tip, and blades, a powder spray pipe and a liquid medicine spray pipe which are arranged on the side wall of the drill bit rod body. The invention can realize the simultaneous application of various medicaments, increases the selectivity of the repairing medicament, obviously improves the working efficiency and lightens the repairing pressure and cost; the blades and the spray pipes are more in number, so that the medicament and the polluted medium can be mixed more uniformly, the spraying ranges of the spray pipes are different, the polluted stratum of the repair area can be covered more comprehensively when the medicament is sprayed and swept, and the mixing effect of the medicament and the polluted medium can be further improved.
Description
Technical Field
The invention relates to the field of soil and underground water remediation, in particular to a double-pipe double-channel liquid-adding, powder-spraying and stirring in-situ remediation device and equipment.
Background
The pollution problem of soil and underground water has been known for a long time, and the remediation and treatment work of the soil and underground water still belongs to a worldwide problem. Through decades of development, domestic technologies become mature and optimized. Wherein, the in-situ chemical dosing process has wide application in the current polluted land restoration due to the advantages of relatively low cost, quick effect and the like.
In-situ chemical dosing technology generally refers to injecting chemical agents (such as oxidizing agents, reducing agents, activating agents, stabilizing agents and the like) into a polluted medium (such as soil, underground water and the like) in a certain mode, and further initiating a reaction between the chemical agents and pollutants to convert the pollutants into non-toxic or low-toxic substances, so that the purpose of repairing the polluted soil and the underground water is achieved.
The currently common medicament adding modes mainly comprise a direct pressure type injection method and a high pressure-rotary spraying injection method.
The direct pressure injection method is to inject the medicine into the contaminated stratum through an injection pipeline under certain pressure. The injection pipeline enters the polluted stratum along with the drilling process of the drilling machine, and the medicament diffusion holes are arranged in a layering mode according to the regional pollution depth along the long axis direction. The medicament enters each layer of polluted land through the diffusion holes under the pressure action of the injection pump to form a thin medicament layer in the horizontal direction, and then longitudinal permeation, diffusion and migration are carried out, and the two materials are mutually intersected, so that the whole polluted area is covered. However, the method is limited by the nature of the stratum, and if the permeability of the polluted land is low, the medicament is extremely difficult to diffuse, and the effect is not obvious.
The high-pressure-jet grouting injection method is in the high-pressure jet grouting pile a medicament adding method developed on the basis. The high-pressure jet grouting pile refers to that on the basis of static pressure grouting, hydraulic coal mining technology is introduced, the jet flow effect is utilized to cut and mix the stratum, and simultaneously, the mud or the composite slurry is poured to form a condensation body, so that the aims of reinforcing the foundation and preventing seepage and stopping water are fulfilled. The slurry in the high-pressure jet grouting pile process is changed into an oxidant in an in-situ chemical oxidation repair technology, namely the high-pressure jet grouting injection technology. Although the method solves the problem of stratum mass transfer, only one medicament can be added, the action radius is very small and generally does not exceed 80cm, so that the construction density is high, various safety problems are easily caused, and the repair cost is high.
In addition, other medicament adding devices or technologies exist, but the mixing effect of the medicament and the polluted medium is poor, only a single medicament can be injected, and the selectivity of the repairing medicament is greatly limited.
Disclosure of Invention
The invention aims to solve the problems and provides an in-situ repair device and equipment for stirring liquid and powder injection in double channels of a double pipe.
The invention provides a double-pipe double-channel liquid-adding, powder-spraying and stirring in-situ repair device, which is characterized by comprising the following components in sequence from top to bottom: the double-pipe flow divider comprises a central pipe and an outer pipe which form a double-layer pipeline structure, a powder feeding pipe connected with the central pipe, and a liquid medicine feeding pipe connected with the outer pipe, wherein the powder feeding pipe is used for introducing high-pressure mixed gas containing solid powdery medicine, and the liquid medicine feeding pipe is used for introducing liquid medicine; the double-pipe drill rod comprises a drill rod body with a through cavity and a high-pressure hose arranged in the through cavity of the drill rod body, wherein the upper end of the drill rod body is communicated with the outer pipe, and the upper end of the high-pressure hose is connected with the lower end of the central pipe; and binary channels stirring drill bit, including having the drill bit body of rod that runs through the chamber, connect the drill point at drill bit body of rod lower extreme, and install the blade on drill bit body of rod lateral wall, powder spray tube and liquid medicine spray tube, the upper end of the drill bit body of rod is connected with the lower extreme of drilling rod body, a plurality of blades set to at least two-layer and every layer blade along circumference distribution, the below of every blade sets up a powder spray tube or liquid medicine spray tube, powder spray tube and high-pressure hose intercommunication, the liquid medicine spray tube communicates with the chamber of running through of the drill bit body of rod, be located powder spray tube and liquid medicine spray tube along circumference interval one by one setting of layer blade below, and every adjacent powder spray tube and a liquid medicine spray tube with same circumference position are a set of spray tube, the range of each group spray tube varies.
The in-situ repair device provided by the invention can also have the following characteristics: the joint of the central tube and the powder feeding tube is provided with an air pressure sealed cabin, and the joint of the outer tube and the liquid medicine feeding tube is provided with a water pressure sealed cabin.
The in-situ repair device provided by the invention can also have the following characteristics: the outer side of the outer tube is provided with a bearing bin which is matched with the outer tube.
The in-situ repair device provided by the invention can also have the following characteristics: the powder spray pipe and the liquid medicine spray pipe are arranged close to the lower surface of the blade.
In the in-situ repair device provided by the invention, it is also possible to have the feature: the powder spray pipe radially penetrates through the side wall of the drill bit rod body, the radially outer end of the powder spray pipe is a powder spraying port, the radially inner end of the powder spray pipe is connected with the lower end of the high-pressure hose through a pipeline connector and a connecting pipe, the liquid medicine spray pipe is radially arranged on the side wall of the drill bit rod body, the radially outer end of the liquid medicine spray pipe is a liquid medicine spraying port, and the radially inner end of the liquid medicine spray pipe is communicated with the through cavity of the drill bit rod body.
The in-situ repair device provided by the invention can also have the following characteristics: the blades comprise upper blades and lower blades, the upper blades and the lower blades are distributed along the circumferential direction, and the upper blades and the lower blades are respectively formed.
In the in-situ repair device provided by the invention, it is also possible to have the feature: the length of the upper blade is larger than that of the lower blade, and the length of each group of spray pipes on the upper layer is larger than that of each group of spray pipes on the lower layer.
The in-situ repair device provided by the invention can also have the following characteristics: the upper blade and the lower blade are respectively inclined by 20-45 degrees relative to the horizontal plane.
The in-situ repair device provided by the invention can also have the following characteristics: the upper blade and the lower blade are four, and the powder spray pipe and the liquid medicine spray pipe are four.
The invention also provides in-situ repair equipment for double-pipe double-channel liquid adding, powder spraying and stirring, which is characterized by comprising the following components: the pile driver comprises the in-situ repair device and a power head, wherein a double-pipe flow divider of the in-situ repair device is arranged on the power head, and a double-pipe drill rod of the in-situ repair device is connected with the power head through the upper end of a drill rod body and is driven by the power head; and the material conveying system is connected with the powder feeding pipe and the liquid medicine feeding pipe of the in-situ repairing device and is used for conveying high-pressure mixed gas containing solid powdery medicine to the powder feeding pipe and conveying liquid medicine to the liquid medicine feeding pipe.
Action and Effect of the invention
According to the in-situ repair device and equipment for stirring by adding liquid and spraying powder through the double pipes and the double channels, the double pipe splitter and the double pipe drill rod are adopted, so that the solid powdery medicament and the liquid medicament can be separately conveyed, and compared with the existing medicament adding device which only can inject a single medicament, the in-situ repair device and equipment can simultaneously apply a plurality of medicaments, increase the selectivity of the repair medicament, remarkably improve the working efficiency and reduce the repair pressure and cost; because a double-channel stirring drill bit is adopted, at least two layers of blades distributed along the circumferential direction are arranged on the double-channel stirring drill bit, a powder spray pipe or a liquid medicine spray pipe is arranged below each blade, each adjacent powder spray pipe and each adjacent liquid medicine spray pipe form a group of spray pipes, and the spraying ranges of the spray pipes of the groups are different, the invention ensures that solid powder medicament and liquid medicament are stirred and mixed after being sprayed out, and because the blades are more in number, the medicament and a polluted medium can be mixed more uniformly during stirring, the spraying amount of the single medicament can be greatly improved, the solid powder medicament and the liquid medicament are sprayed out simultaneously along the circumferential direction, the mixing effect with the polluted medium is better and more uniform, the spraying ranges of the spray pipes of the groups are different, the polluted stratum in a repair area can be more comprehensively covered during spraying and sweeping the medicament, and the mixing effect of the medicament and the polluted medium is further improved.
Drawings
FIG. 1 is a schematic structural diagram of a double-pipe double-channel liquid-adding, powder-spraying and stirring in-situ repair device in embodiment 1 of the present invention;
FIG. 2 is a schematic cross-sectional view of a double pipe diverter in example 1 of the present invention;
FIG. 3 is a schematic cross-sectional view of the center tube and the outer tube of the dual tube flow splitter of example 1 of the present invention;
FIG. 4 is a schematic view of the structure of a two-pass stirring drill bit in example 1 of the present invention;
FIG. 5 is a schematic distribution diagram of the upper blades of the two-channel stirring drill bit and the powder spray pipes and the liquid medicine spray pipes on the upper blades in the two-channel stirring drill bit in the embodiment 1 of the invention;
FIG. 6 is a schematic distribution diagram of the lower blades of the dual-channel stirring drill bit and the powder spraying pipes and the liquid spraying pipes thereon in example 1 of the present invention;
FIG. 7 is a schematic diagram showing the overall distribution of the powder nozzle of the two-channel stirring drill bit in example 1 of the present invention;
fig. 8 is a schematic view showing the overall arrangement of the chemical liquid nozzles of the two-channel agitating drill according to embodiment 1 of the present invention.
Description of the reference numerals:
10 double tube shunts; 11 a central tube; 12 an outer tube; 13 powder feeding pipe; 14 liquid medicine feeding pipes; 15 a first annular channel; 16 air pressure sealed cabin; 17, hydraulic pressure sealing the bin; 18 bearing bins; 20 double pipe drill rods; 21 a drill rod body; 22 a high pressure hose; 23 a second annular channel; 30 double-channel stirring drill bits; 31 a drill bit body; 311 through the cavity; 32 a drill tip; 33 upper leaves; 34 lower blades; 35 a powder spray pipe; 36 liquid medicine spray pipes; 40, a power head; 41 power head tube.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described with reference to the attached drawings.
Example 1
Fig. 1 is a schematic structural diagram of a double-pipe double-channel liquid-adding, powder-spraying and stirring in-situ repair device.
As shown in fig. 1, the embodiment provides a dual-pipe dual-channel liquid-adding powder-spraying stirring in-situ repair device, which is one of the components of a pile driver, and includes a dual-pipe diverter 10, a dual-pipe drill rod 20, and a dual-channel stirring drill 30, which are sequentially arranged from top to bottom. The dual-pipe flow divider 10 is mounted on a power head 40 of the pile driver and used for dividing solid in-situ medicaments and liquid in-situ medicaments, the dual-pipe drill rod 20 is connected with the power head 40 through the upper end and driven by the power head 40, and the dual-channel stirring drill bit 30 is connected to the lower end of the dual-pipe drill rod 20 and driven by the dual-pipe drill rod 20 to rotate together.
Fig. 2 is a schematic sectional view of the double pipe diverter 10, and fig. 3 is a schematic sectional view of the center pipe 11 and the outer pipe 12 of the double pipe diverter 10.
As shown in fig. 1 to 3, the double tube splitter 10 mainly includes a central tube 11, an outer tube 12, a powder feeding tube 13, and a liquid medicine feeding tube 14. The lower end of the central tube 11 is connected with the upper end of a power head tube 41 arranged on the power head 40, the outer tube 12 is arranged on the outer side of the central tube 11, the central tube 11 and the outer tube 12 form a double-layer pipeline structure, and a first annular channel 15 extending axially is formed between the central tube 11 and the outer tube 12. The upper end of the central tube 11 is provided with a powder feeding hole and connected with a powder feeding tube 13, and the powder feeding tube 13 is used for feeding high-pressure mixed gas containing solid powdery medicament (such as sodium persulfate) into the central tube 11. A liquid medicine feed inlet is arranged at the upper end of the outer tube 12 and is connected with a liquid medicine feed pipe 14, and the liquid medicine feed pipe 14 is used for introducing liquid medicine (such as lime slurry) into the first annular passage 15. In this embodiment, the upper end of the central tube 11 is higher than the upper end of the outer tube 12, and the powder feeding port of the central tube 11 is opened on the upper end face, and the liquid medicine feeding port of the outer tube 12 is opened on the side wall.
In order to limit the escape of high pressure air flow and to better convey the high pressure mixture containing the solid powdered medicament down the central tube 11, the dual tube splitter 10 further comprises a pneumatic seal cartridge 16 consisting essentially of a sealing ring, the pneumatic seal cartridge 16 being disposed at the junction of the central tube 11 and the powder feed tube 13.
In order to restrict the flow of the liquid medicine and to allow the liquid medicine to be better transported down the first annular channel 15, the dual tube shunt 10 further comprises a hydraulic capsule 17, which is mainly composed of a sealing ring, and the hydraulic capsule 17 is disposed at the junction of the outer tube 12 and the liquid medicine feeding tube 14 and is connected below the pneumatic capsule 16.
Because the dual-pipe drill rod 20 is driven to rotate by the power head 40 of the pile driver, the central pipe 11 is connected with the dual-pipe drill rod 20 through the power head pipe 41, in order to support the rotation of the dual-pipe drill rod 20 and ensure the installation of the dual-pipe flow divider 10 on the pile driver, the dual-pipe flow divider 10 further comprises a bearing bin 18 provided with a bearing, the bearing bin 18 is connected below the hydraulic pressure sealing bin 17, and the bearing is matched with the outer pipe 12.
As shown in fig. 1, a double pipe drill stem 20 includes a stem body 21 and a high pressure hose 22. The drill rod body 21 is used for transmitting torque and rotating speed, is made of steel materials and is provided with a through cavity which is communicated up and down, and the upper end of the drill rod body 21 is connected with the lower end of the power head pipe 41 through a flange. The high-pressure hose 22 is arranged in a through cavity of the drill rod body 21 in an axially extending mode, the upper end of the high-pressure hose 22 is connected with the lower end of the central tube 11 of the double-tube flow divider 10, the lower end of the high-pressure hose 22 is connected with the powder spraying tube 35 of the double-channel stirring drill bit 30, and the high-pressure hose 22 is used for conveying high-pressure mixed gas containing solid powdery medicaments. An axially extending second annular channel 23 is formed between the drill stem body 21 and the high pressure hose 22, the second annular channel 23 communicating with the first annular channel 15 of the dual pipe diverter 10 for delivery of the liquid medicament.
Fig. 4 is a schematic structural view of the two-pass agitating drill 30.
As shown in fig. 4, the two-channel agitating drill 30 includes a drill rod body 31, a drill tip 32, a blade, a powder nozzle 35, and a liquid medicine nozzle 36. The drill rod body 31 is made of steel, the upper end of the drill rod body 31 is connected with the lower end of the drill rod body 21 of the dual-pipe drill rod 20, the lower end of the drill rod body 31 is connected with the drill tip 32, the drill rod body 31 is provided with a through cavity which is communicated with the second annular channel 23 of the dual-pipe drill rod 20 up and down, and the through cavity is used for conveying liquid medicaments. The blade sets up two-layerly at least, but mechanics when guaranteeing the stirring leads, and in this embodiment, the blade sets up to two-layerly, and a plurality of upper blades 33 are installed on the lateral wall of the drill bit body of rod 31 along the circumference equipartition, constitute upper blade, and a plurality of lower blades 34 are installed on the lateral wall of the drill bit body of rod 31 along the circumference equipartition, constitute lower floor's blade. Wherein, the length of the upper blade 33 is greater than the length of the lower blade 34, and the upper blade 33 and the lower blade 34 are respectively inclined relative to the horizontal plane, and the inclination angle alpha is 20-45 degrees. A steel powder spray pipe 35 or a liquid medicine spray pipe 36 is respectively arranged under each upper blade 33 and each lower blade 34 in a clinging manner, and the powder spray pipes 35 and the liquid medicine spray pipes 36 which are positioned under the blades on the same layer are arranged at intervals along the circumferential direction of the drill bit rod body 31.
Fig. 5 is a schematic view showing the distribution of the upper blade 33 and the powder nozzles 35 and the liquid medicine nozzles 36 thereon, fig. 6 is a schematic view showing the distribution of the lower blade 34 and the powder nozzles 35 and the liquid medicine nozzles 36 thereon, fig. 7 is a schematic view showing the overall arrangement of the powder nozzle 35, and fig. 8 is a schematic view showing the overall arrangement of the liquid medicine nozzle 36.
As shown in fig. 5 to 8, each dust nozzle 35 radially penetrates through the sidewall of the drill bit body 31, the radially outer end of each dust nozzle 35 is a dust outlet, and the radially inner end of each dust nozzle is connected to the lower end of the high-pressure hose 22 of the dual-pipe drill rod 20 through a pipe joint and a connecting pipe. Each liquid medicine nozzle 36 is radially installed on the sidewall of the drill bit body 31, the radially outer end of each liquid medicine nozzle 36 is a liquid medicine discharge port, and the radially inner end is communicated with the through cavity 311 of the drill bit body 31. Every adjacent powder spray pipe 35 and liquid medicine spray pipe 36 of same circumferential position are a set of spray pipe, and the powder spray pipe 35 and the liquid medicine spray pipe 36 of every group spray pipe are equal in length, and the length of each group spray pipe is unequal, can realize different range to, the length of each group spray pipe that is located the upper strata is greater than the length of each group spray pipe that is located the lower floor.
In the present embodiment, the number of the upper blade 33 and the lower blade 34 is four, the upper blade 33 and the lower blade 34 are respectively disposed to be inclined by 30 ° with respect to the horizontal plane, and the number of the powder nozzles 35 and the number of the liquid medicine nozzles 36 are four.
As shown in fig. 5, two powder nozzles 35 and two liquid medicine nozzles 36 are arranged at intervals of 90 ° in the circumferential direction below the upper blade, wherein one powder nozzle 35 and one liquid medicine nozzle 36 have the same length and are longer than each other as a group of nozzles, and the other powder nozzle 35 and the other liquid medicine nozzle 36 have the same length and are shorter than each other as another group of nozzles. As shown in fig. 6, two powder nozzles 35 and two liquid medicine nozzles 36 are also arranged at intervals of 90 ° in the circumferential direction below the lower blade, wherein one powder nozzle 35 and one liquid medicine nozzle 36 have the same length and are longer than each other as one nozzle group, the other powder nozzle 35 and the other liquid medicine nozzle 36 have the same length and are shorter than each other as another nozzle group, and the two nozzle groups located at the lower layer have the lengths shorter than those of the two nozzle groups located at the upper layer.
As shown in fig. 7, two powder nozzles 35 located at the upper layer and two liquid medicine nozzles 36 located at the lower layer are arranged in a circumferential direction, and the radial inner ends of the four powder nozzles 35 are connected to a connecting pipe arranged along the axis of the drill rod body 21 through a pipe joint, and the upper end of the connecting pipe is connected to the lower end of a high-pressure hose (not shown) of the double-pipe drill rod. As shown in fig. 8, two chemical solution nozzles 36 located at the upper layer and two chemical solution nozzles 36 located at the lower layer are provided so as to correspond to each other in the circumferential direction, and the radially inner ends of the four chemical solution nozzles 36 communicate with the through cavity 311 of the drill bit body 31.
Example 2
The embodiment provides in-situ remediation equipment comprising a pile driver and a delivery system. The pile driver is provided with the in-situ repair device for stirring the liquid and powder adding in the double-pipe double-channel in embodiment 1, the power head 40 of the pile driver can adopt a double-motor power head, as shown in fig. 1, and the power head pipe 41 connected with the outer pipe 11 of the double-pipe flow divider 10 and the drill pipe body 21 of the double-pipe drill pipe 20 is arranged on the power head 40. The conveying system is connected with a powder feeding pipe 13 and a liquid medicine feeding pipe 14 of the in-situ repair device and is used for conveying high-pressure mixed gas containing solid powdery medicine to the powder feeding pipe 13 and conveying liquid medicine to the liquid medicine feeding pipe 14, the conveying function of the conveying system can be realized by adopting an air compressor, and in addition, the conveying system can also comprise a computer dosing machine and can be used for accurately controlling the amount of the sprayed medicine.
The method for repairing soil and underground water by using the in-situ repair equipment comprises the following steps: the conveying system respectively conveys high-pressure mixed gas containing solid powdery medicaments and liquid medicaments to the powder feeding pipe 13 and the liquid medicament feeding pipe 14 of the in-situ repair device, so that the high-pressure mixed gas containing the solid powdery medicaments sequentially passes through the central pipe 11 and the high-pressure hose 22 and then is sprayed out from each powder spray pipe 35, and the liquid medicaments sequentially pass through the outer pipe 12, the drill rod body 21 and the drill rod body 31 and then are sprayed out from each liquid medicament spray pipe 36. Meanwhile, the pile driver drives the double-channel stirring drill bit 30 to perform clockwise tunneling and anticlockwise lifting in the deep part of the polluted stratum, the sprayed medicament and the polluted medium are stirred, mixed and acted.
Effects and effects of the embodiments
According to the in-situ repair device and equipment for stirring by adding liquid and spraying powder through the double pipes and the double channels, the double pipe flow divider and the double pipe drill rod are adopted, so that the separate conveying of solid powdery medicaments and liquid medicaments can be realized, therefore, compared with the prior art that the existing medicament adding device can only inject a single medicament, the invention can realize the simultaneous application of a plurality of medicaments, increase the selectivity of repairing medicaments, obviously improve the working efficiency and reduce the repairing pressure and cost; because a double-channel stirring drill bit is adopted, at least two layers of blades distributed along the circumferential direction are arranged on the double-channel stirring drill bit, a powder spray pipe or a liquid medicine spray pipe is arranged below each blade, each adjacent powder spray pipe and each adjacent liquid medicine spray pipe form a group of spray pipes, and the spraying ranges of the spray pipes of the groups are different, the invention ensures that solid powder medicament and liquid medicament are stirred and mixed after being sprayed out, and because the blades are more in number, the medicament and a polluted medium can be mixed more uniformly during stirring, the spraying amount of the single medicament can be greatly improved, the solid powder medicament and the liquid medicament are sprayed out simultaneously along the circumferential direction, the mixing effect with the polluted medium is better and more uniform, the spraying ranges of the spray pipes of the groups are different, the polluted stratum in a repair area can be more comprehensively covered during spraying and sweeping the medicament, and the mixing effect of the medicament and the polluted medium is further improved.
In the double-pipe flow divider, a pressure sealing bin filled with sealing filler can be arranged at the joint of the central pipe and the powder feeding pipe, so that the sealing property of the joint can be ensured, and high-pressure airflow can be prevented from escaping; a hydraulic pressure sealing bin filled with sealing filler can be arranged at the joint of the outer pipe and the liquid medicine feeding pipe, so that the sealing property of the joint can be ensured, and liquid medicine leakage can be prevented; the outer side of the outer pipe is provided with a bearing bin provided with a bearing, so that the outer pipe can bear the rotation driven by the double-pipe drill rod.
In the double-channel stirring drill, the blades include an upper blade and a lower blade in order to fit the overall shape of the drill. The length of the upper blade is greater than that of the lower blade, and the length of each group of spray pipes on the upper layer is greater than that of each group of spray pipes on the lower layer; in order to ensure the stirring effect of the blades, the upper blade and the lower blade can be respectively inclined by 20-45 degrees relative to the horizontal plane; the powder spray pipe and the liquid medicine spray pipe can be arranged along the radial direction, the radial outer end of the powder spray pipe is a spraying port for the medicine, the radial outer end of the powder spray pipe is arranged in the drill rod body, the radial inner end of the liquid medicine spray pipe is communicated with the inner cavity of the drill bit rod body; the upper blade and the lower blade are preferably four, the powder spray pipe and the liquid medicine spray pipe are preferably four, the manufacturing cost is controllable, and meanwhile, a better using effect can be achieved.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (10)
1. The utility model provides an in situ repair device of stirring is dusted to binary channels liquid feeding of dual pipe which characterized in that includes from last to down in proper order:
the double-pipe flow divider comprises a central pipe and an outer pipe which form a double-layer pipeline structure, a powder feeding pipe connected with the central pipe, and a liquid medicine feeding pipe connected with the outer pipe, wherein the powder feeding pipe is used for introducing high-pressure mixed gas containing solid powdery medicines, and the liquid medicine feeding pipe is used for introducing liquid medicines;
the double-pipe drill rod comprises a drill rod body with a through cavity and a high-pressure hose arranged in the through cavity of the drill rod body, wherein the upper end of the drill rod body is communicated with the outer pipe, and the upper end of the high-pressure hose is connected with the lower end of the central pipe; and
binary channels stirring drill bit, including having the drill bit body of rod that runs through the chamber, connect drill bit, the drill point and the installation of drill bit body of rod lower extreme blade, powder spray tube and liquid medicine spray tube on the drill bit body of rod lateral wall, the upper end of the drill bit body of rod with the lower extreme of drilling rod body is connected, and is a plurality of the blade sets to at least two-layer and every layer the blade distributes along circumference, every the below of blade sets up one the powder spray tube or the liquid medicine spray tube, the powder spray tube with high-pressure hose intercommunication, the liquid medicine spray tube with the intercommunication of the chamber that runs through of the drill bit body of rod is located the same layer blade below the powder spray tube with the liquid medicine spray tube sets up along circumference interval one by one to with every adjacent one of same circumference position powder spray tube and one the liquid medicine spray tube is a set of spray tube, each group the range of spray tube varies.
2. The in situ repair apparatus of claim 1, wherein:
wherein, a pneumatic sealing bin is arranged at the joint of the central tube and the powder feeding tube,
and a hydraulic sealing bin is arranged at the joint of the outer pipe and the liquid medicine feeding pipe.
3. The in situ repair apparatus of claim 1, wherein:
wherein, the outside of outer tube is equipped with matched with bearing storehouse.
4. The in situ repair apparatus of claim 1, wherein:
the powder spraying pipe and the liquid medicine spraying pipe are arranged close to the lower surface of the blade.
5. The in situ repair apparatus of claim 1, wherein:
wherein the powder spray pipe radially penetrates through the side wall of the drill bit rod body, the radial outer end of the powder spray pipe is a powder spray port, the radial inner end of the powder spray pipe is connected with the lower end of the high-pressure hose through a pipeline joint and a connecting pipe,
the liquid medicine spray pipe is installed on the side wall of the drill bit rod body along the radial direction, the radial outer end of the liquid medicine spray pipe is a liquid medicine spray port, and the radial inner end of the liquid medicine spray pipe is communicated with the through cavity of the drill bit rod body.
6. The in situ repair apparatus of any one of claims 1 to 5, wherein:
wherein the blades comprise an upper blade and a lower blade,
the upper blades and the lower blades are distributed along the circumferential direction and respectively form upper blades and lower blades.
7. The in situ repair apparatus of claim 6, wherein:
wherein the length of the upper blade is greater than that of the lower blade,
the length of each group of spray pipes positioned on the upper layer is greater than that of each group of spray pipes positioned on the lower layer.
8. The in situ repair apparatus of claim 6, wherein:
wherein the upper blade and the lower blade are respectively inclined at 20-45 degrees with respect to a horizontal plane.
9. The in situ repair apparatus of claim 6, wherein:
the upper blade and the lower blade are four, and the powder spray pipe and the liquid medicine spray pipe are four.
10. The utility model provides a dual pipe binary channels liquid feeding mixes normal position repair equipment of powder, its characterized in that includes:
a pile driver comprising the in-situ remediation device of any one of claims 1-9 and a power head, the dual-pipe diverter of the in-situ remediation device being mounted on the power head, the dual-pipe drill rod of the in-situ remediation device being connected to the power head through the upper end of the drill rod body and being driven by the power head; and
and the material conveying system is connected with the powder feeding pipe and the liquid medicine feeding pipe of the in-situ repair device and is used for conveying high-pressure mixed gas containing solid powdery medicine to the powder feeding pipe and conveying liquid medicine to the liquid medicine feeding pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211161839.4A CN115488144A (en) | 2022-09-23 | 2022-09-23 | In-situ repair device and equipment for double-pipe double-channel liquid adding, powder spraying and stirring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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