CN214697746U - Hole bottom slag removal device based on cavitation effect reverse circulation - Google Patents
Hole bottom slag removal device based on cavitation effect reverse circulation Download PDFInfo
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- CN214697746U CN214697746U CN202023011798.XU CN202023011798U CN214697746U CN 214697746 U CN214697746 U CN 214697746U CN 202023011798 U CN202023011798 U CN 202023011798U CN 214697746 U CN214697746 U CN 214697746U
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Abstract
The utility model relates to a hole bottom slag removal device based on cavitation effect reverse circulation, which belongs to the technical field of construction of cast-in-situ bored piles and club-footed piles, and comprises a water tap, a water guide pipe, a mud pump, a slurry storage tank and a slag settling tank which are arranged on the ground; the hole bottom slag removal device also comprises an ultrasonic vibration device, and the ultrasonic vibration device is connected with the mud pump through the water guide pipe; and an ultrasonic vibrator is arranged at the bottom of the ultrasonic vibration device. The utility model combines the ultrasonic cavitation effect with the reverse circulation mode, accelerates the slag removal speed of the hole bottom, greatly reduces the slag removal time and improves the slag removal effect; has the advantages of less slurry consumption, low cost, high slag removal efficiency and thorough slag removal; the device can also be used for treating drilling and burying accidents, so that the cost of slag removal is reduced; the utility model discloses a thereby ultrasonic vibrator produces ultrasonic wave cavitation phenomenon and turns up the hole bottom sediment, promotes the sediment top layer and drops, has solved the drilling tool card brill problem that arouses because of the inside and outside pressure differential.
Description
Technical Field
The utility model belongs to the technical field of drilling bored concrete pile, club-footed pile construction, in particular to hole bottom scarfing cinder device based on cavitation effect reverse circulation for the hole bottom scarfing cinder before the concrete is poured, also can be used to drilling buried drilling incident processing. The technology is mainly applied to the fields of railways, highways, tunnel excavation construction, geological drilling, hydrological wells and the like.
Background
With the vigorous development of infrastructures such as high-speed railways, expressways, urban buildings and underground engineering in China, cast-in-situ bored piles, club-footed piles and the like gradually become an economical and applicable foundation form with high bearing capacity, pulling resistance, shearing resistance, corrosion resistance and the like, but sediment at the pile end cannot be effectively removed in the construction process, the resistance at the pile end is greatly reduced, and the bearing capacity of the foundation pile is further influenced.
In order to solve the problems, a circulating slag removal process is often adopted or manual slag removal is needed to meet the preset standard, so that the construction efficiency is greatly reduced, and the danger coefficient of workers is increased due to manual hole removal. At present, the following methods are mainly used for treating the bottom sediment of the hole before the cast-in-situ bored pile is poured
(1) Fishing and slag removal: the method utilizes the grab bucket to discharge slag or utilizes the grab bucket and slurry to circularly and compositely discharge slag, and has the defects of irregular hole forming, repeated drilling and incomplete cleaning of sediment at the bottom of the hole. The method has limited equipment capability and is only suitable for shallow hole operation.
(2) And (3) slag removal of a positive circulation flushing fluid: and (3) feeding slurry with low sand content through a conduit, punching, flushing sediment at the bottom of the hole, and slowly circulating to carry out precipitation outside the hole. The method has the defects of long time consumption and incomplete slag removal, and due to the fact that the sand content of slurry in the hole is high, the sand content of the slurry in the hole is increased along with the increase of the depth of the hole, the sand in the slurry can be quickly precipitated to generate sediment after the punching is stopped, the environment is polluted, a large amount of bentonite is needed, and the manufacturing cost is high.
(3) Slag removal by reverse circulation flushing fluid or gas lift reverse circulation: at present, the better slag cleaning method has the defects that most of pile bottom sediments are solidified, the solidification force and the cohesive force exist, and the hole cleaning effect is poor due to the fact that the hole cleaning needs to be carried out for many times when meeting soft soil strata. The reverse circulation sand pump has the advantages of complex and heavy structure, more faults, higher use technical requirement and high maintenance cost.
In summary, there is a need for an improved and developed slag removing tool, which can be used for removing slag quickly and effectively, and meets the development trend of modern machines and tools to improve the slag removing effect of foundation piles such as cast-in-situ bored piles and club-footed piles.
SUMMERY OF THE UTILITY MODEL
The utility model provides a hole bottom scarfing cinder device based on cavitation effect reverse circulation, which has the characteristics of simple structure, convenient use, obvious effect and low cost, and solves the technical problems of difficult cleaning of sediments, large danger coefficient of manual scarfing cinder, high cost of repeated circulation scarfing cinder and low efficiency in the prior art.
The utility model comprises the following technical scheme: a hole bottom slag removal device based on cavitation effect reverse circulation comprises a water faucet, a water guide pipe, a mud pump, a slurry storage tank and a slag settling tank, wherein the slurry storage tank and the slag settling tank are arranged on the ground; the hole bottom slag removal device also comprises an ultrasonic vibration device, and the ultrasonic vibration device is connected with the mud pump through the water guide pipe; and an ultrasonic vibrator is arranged at the bottom of the ultrasonic vibration device.
Further, the ultrasonic vibration device further comprises an insulating shell and an armored cable.
Furthermore, the whole insulating shell is a hollow round table.
Furthermore, the armored cable is arranged at the top of the hollow round table, and the ultrasonic vibrators are arranged at the bottom of the hollow round table.
Furthermore, the hollow shape of the hollow round table is horn-shaped, so that the water guide pipe can conveniently absorb slurry containing a large amount of sediments at the bottom of the hole.
Further, a plurality of the ultrasonic vibrators are rigidly connected together through a bracket.
Further, the water faucet is arranged on the water guide pipe.
Furthermore, a water outlet of the mud pump is positioned at the side of the sediment tank.
Furthermore, a mud guard is arranged between the slurry storage tank and the slag settling tank, the left side of the mud guard is the slurry storage tank, and the right side of the mud guard is the slag settling tank.
Furthermore, a grout return groove is arranged between the grout storage tank and the operation pile hole.
The utility model discloses the theory of operation: the micro-gas core cavitation bubbles in the liquid vibrate under the action of sound waves, and the dynamic process of growth and collapse when the sound pressure reaches a certain value is an ultrasonic cavitation phenomenon. The ultrasonic wave of dozens of kilohertz generates instantaneous high temperature and high pressure in the liquid with normal temperature and pressure, generates extremely strong impact action on the sediment, and releases huge energy at the moment of collapse of cavitation bubbles.
When the hole bottom slag removal operation is carried out, firstly, the frequency, the power and the like of the ultrasonic vibration device are adjusted through the electric cabinet, so that the optimal value of the cavitation effect of the ultrasonic waves in the liquid is achieved. In the working process of the ultrasonic vibration device, the energy released by collapse of the cavitation bubbles and the high-speed micro-jet flow have strong impact effect on the sediments, the cohesive force, the consolidation force and the internal friction angle among the sediments are damaged, the sediments can be turned up, the surface layer of the sediments is promoted to fall off, and the separation speed of the floating soil and the hole bottom body is accelerated. And at the moment, a slurry pump is started to pump the slurry containing a large amount of sediments into a sediment tank through a water guide pipe, the sandy soil and the slurry are separated through the sediment tank, the sandy soil is precipitated in the sediment tank, and the slurry returns to the operation pile hole through a slurry return groove after passing through a slurry storage tank.
The utility model has the advantages and positive effect:
1. the utility model combines the ultrasonic cavitation effect with the reverse circulation mode, accelerates the slag removal speed of the hole bottom, greatly reduces the slag removal time and improves the slag removal effect; has the advantages of less slurry consumption, low cost, high slag removal efficiency and thorough slag removal; the device can also be used for treating drilling and burying accidents, and reduces the cost of slag removal.
2. The utility model adopts the ultrasonic vibrator to generate ultrasonic cavitation phenomenon to turn up the sediment at the bottom of the hole and promote the surface layer of the sediment to fall off; the ultrasonic vibration causes great vibration speed and acceleration of mass points, so that sediments are frequently and violently impacted and are not easy to attach to the surface of the drilling tool, and the problem of drilling tool jamming caused by internal and external pressure difference can be solved.
3. The utility model discloses be equipped with the sand and soil that the fender prevented in the detritus pond and advance the operation stake hole along with mud backward flow.
4. The utility model discloses an assembled structure, each part can be dismantled in the device, and it is convenient to assemble.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic perspective view of the ultrasonic vibration device.
Fig. 3 is a front view schematically showing the structure of the ultrasonic vibration device.
In the figure, 1-water tap; 2-a water conduit; 3-ultrasonic vibration device; 4-a pulp storage tank; 5-a mudguard; 6-a sediment tank; 7-a slurry pump; 8-slurry return groove; 9-an insulating housing; 10-an armored cable; 11-ultrasonic vibrator.
Detailed Description
To further disclose the contents, features and functions of the present invention, the following examples are given in detail with reference to the accompanying drawings.
Example (b): referring to the attached drawings 1-3, the hole bottom slag removal device based on cavitation effect reverse circulation comprises a water faucet 1, a water guide pipe 2, a mud pump 7, a slurry storage tank 4 and a slag settling tank 6, wherein the slurry storage tank 4 and the slag settling tank 6 are arranged on the ground, and the water faucet 1 is arranged on the water guide pipe 2. The water outlet of the mud pump 7 is positioned above the sediment tank 6. A mud guard 5 is arranged between the slurry storage tank 4 and the sediment tank 6, the left side of the mud guard 5 is provided with the slurry storage tank 4, and the right side is provided with the sediment tank 6. And a grout return groove 8 is arranged between the grout storage tank 4 and the operation pile hole.
The hole bottom slag removal device also comprises an ultrasonic vibration device 3, and the ultrasonic vibration device 3 is connected with the mud pump 7 through the water guide pipe 2; the bottom of the ultrasonic vibration device 3 is provided with an ultrasonic vibrator 11.
The ultrasonic vibration device 3 further includes an insulating sheath 9 and an armored cable 10.
The insulating shell 9 is integrally a hollow round table. The armored cable 10 is arranged at the top of the hollow circular truncated cone, and the ultrasonic vibrators 11 are arranged at the bottom of the hollow circular truncated cone. The hollow shape of the hollow round platform is trumpet-shaped, so that the water guide pipe can conveniently absorb the slurry containing a large amount of sediments at the bottom of the hole. A plurality of the ultrasonic vibrators 11 are rigidly connected together by a bracket.
The working principle is as follows: when the hole bottom slag removal operation is carried out, firstly, the frequency, the power and the like of the ultrasonic vibration device 3 are adjusted through the electric cabinet, so that the optimal value of the cavitation effect of the ultrasonic waves in the liquid is achieved. In the working process of the ultrasonic vibration device 3, the energy released by collapse of the cavitation bubbles and the high-speed micro-jet flow have strong impact effect on the sediments, the cohesive force, the consolidation force and the internal friction angle among the sediments are damaged, the sediments can be turned up, the surface layer of the sediments is promoted to fall off, and the separation speed of the floating soil and the hole bottom body is accelerated. At the moment, a slurry pump 7 is started to pump slurry containing a large amount of sediments into a sediment tank 6 through a water guide pipe 2, sandy soil and slurry are separated through the sediment tank 6, the sandy soil is precipitated in the sediment tank 6, and the slurry returns to the operation pile hole through a slurry return groove 8 after passing through a slurry storage tank 4.
The working method comprises the following steps: s1, arranging the device according to the requirement of the working pile hole; after the mud pit is dug, a mud guard 5 is arranged in the mud pit, the mud guard 5 divides the mud pit into a mud storage pit 4 and a sediment pit 6, and a mud returning groove 8 is arranged between the mud storage pit 4 and the operation pile hole; the ultrasonic vibration device 3 is connected with a power supply through an armored cable 10, the ultrasonic vibration device 3 is arranged below the water guide pipe 2, and a mud pump 7 is connected above the water guide pipe 2; sending the ultrasonic vibration device 3 and the aqueduct 2 connected with the armored cable 10 into the bottom of the hole through the ground cable car retracting device;
s2, debugging equipment and starting slag removal operation; the ultrasonic vibration device 3 adopts an armored cable 10 to be electrified and simultaneously starts an ultrasonic vibrator 11, and the frequency, the power and the like of the ultrasonic vibration device 3 are adjusted through an electric cabinet to reach the optimal value of the cavitation effect of the ultrasonic waves in the liquid; high-frequency current generated by an electric control system above the ground is converted into longitudinal mechanical vibration (> 20000 times/s) through the armored cable 10 and the ultrasonic vibration device 3, the cohesive force of impurities such as silt, floating soil and the like at the bottom of a hole is reduced under the action of ultrasonic vibration and cavitation, and chips wrapped in slurry are quickly separated from the slurry and are precipitated; simultaneously starting a mud pump 7, making the mud containing a large amount of sediment fragments flow into a mud tank by reverse circulation of the mud pump 7, precipitating the impurity of the fragments in the sediment tank 6, making the purified mud flow into a mud storage tank 4, and making the mud in the mud storage tank 4 flow into the hole again through a mud return groove 8 to form a closed loop reverse circulation system so as to repeat the next circulation;
s3, adjusting the position of the device; during the use process, the cable car winding and unwinding device can be used for properly lifting and unwinding to adjust the position of the ultrasonic vibration device 3, so that the ultrasonic vibration and cavitation effect are applied to more efficiently remove slag and accelerate the precipitation of debris wrapped by mud;
s4, finishing the slag removal operation; and after the removal is finished, the power supply and the slurry pump 7 are turned off, and the ultrasonic vibration device 3 and the water guide pipe 2 are lifted out through the ground cable car retracting device to finish the slag removal operation.
Although the preferred embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention. All of which fall within the scope of the present invention.
Claims (8)
1. The utility model provides a hole bottom scarfing cinder device based on cavitation effect reverse circulation, includes tap, aqueduct, slush pump and sets up at the mud storage tank and the sediment pond on ground, its characterized in that: the hole bottom slag removal device also comprises an ultrasonic vibration device, and the ultrasonic vibration device is connected with the mud pump through the water guide pipe; the bottom of the ultrasonic vibration device is provided with an ultrasonic vibrator; the ultrasonic vibration device also comprises an insulating shell and an armored cable; the whole insulating shell is a hollow round table.
2. The hole bottom slag removal device based on cavitation effect reverse circulation as claimed in claim 1, characterized in that: the armored cable is arranged at the top of the hollow round table, and the ultrasonic vibrators are arranged at the bottom of the hollow round table.
3. The hole bottom slag removal device based on cavitation effect reverse circulation as claimed in claim 1, characterized in that: the hollow shape of the hollow round platform is trumpet-shaped.
4. The hole bottom slag removal device based on cavitation effect reverse circulation according to any one of claims 1-3, characterized in that: a plurality of the ultrasonic vibrators are rigidly connected together through a bracket.
5. The hole bottom slag removal device based on cavitation effect reverse circulation according to any one of claims 1-3, characterized in that: the water faucet is arranged on the water guide pipe.
6. The hole bottom slag removal device based on cavitation effect reverse circulation according to any one of claims 1-3, characterized in that: and a water outlet of the mud pump is positioned at the side edge of the sediment tank.
7. The hole bottom slag removal device based on cavitation effect reverse circulation according to any one of claims 1-3, characterized in that: a mud guard is arranged between the slurry storage tank and the sediment tank, the left side of the mud guard is the slurry storage tank, and the right side of the mud guard is the sediment tank.
8. The hole bottom slag removal device based on cavitation effect reverse circulation according to any one of claims 1-3, characterized in that: and a grout return groove is arranged between the grout storage tank and the operation pile hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023011798.XU CN214697746U (en) | 2020-12-15 | 2020-12-15 | Hole bottom slag removal device based on cavitation effect reverse circulation |
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| CN202023011798.XU CN214697746U (en) | 2020-12-15 | 2020-12-15 | Hole bottom slag removal device based on cavitation effect reverse circulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412368A (en) * | 2020-12-15 | 2021-02-26 | 中国铁路设计集团有限公司 | Hole bottom slag removal device and method based on cavitation effect reverse circulation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412368A (en) * | 2020-12-15 | 2021-02-26 | 中国铁路设计集团有限公司 | Hole bottom slag removal device and method based on cavitation effect reverse circulation |
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