CN116920514B - Sand layer bored pile slurry precipitation filtering equipment and filtering method - Google Patents
Sand layer bored pile slurry precipitation filtering equipment and filtering method Download PDFInfo
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- CN116920514B CN116920514B CN202311191414.2A CN202311191414A CN116920514B CN 116920514 B CN116920514 B CN 116920514B CN 202311191414 A CN202311191414 A CN 202311191414A CN 116920514 B CN116920514 B CN 116920514B
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- 239000002002 slurry Substances 0.000 title claims abstract description 118
- 238000001914 filtration Methods 0.000 title claims abstract description 86
- 239000004576 sand Substances 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001556 precipitation Methods 0.000 title claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 87
- 238000004062 sedimentation Methods 0.000 claims abstract description 57
- 239000002893 slag Substances 0.000 claims abstract description 51
- 239000013049 sediment Substances 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims description 27
- 238000003860 storage Methods 0.000 claims description 14
- 238000007790 scraping Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000010992 reflux Methods 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims 2
- 238000001125 extrusion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 9
- 238000004064 recycling Methods 0.000 abstract description 7
- 239000002689 soil Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
- B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
- B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a sand layer bored pile slurry precipitation filtering device and a filtering method, and relates to the field of pile foundation engineering construction. The utility model provides a sand bed bored concrete pile mud sediment filtration equipment, includes the sedimentation tank of setting at the other mud pit, still includes: the filtering pool is arranged between the mud pool and the sedimentation pool; the filter plate is arranged at the lower end of the interior of the sedimentation tank; the first slurry pump is arranged at the bottom of the sedimentation tank, a feed inlet of the first slurry pump is communicated with a discharge outlet at the bottom of the sedimentation tank, and a discharge outlet of the first slurry pump is communicated with a feed inlet of the filtering tank; compared with the prior art that the method for removing the drilling slag in the slurry by adopting natural precipitation is adopted, when the recovered slurry mixed with the drilling slag is subjected to precipitation, filtration and recycling, the method not only can ensure the filtration effect of the drilling slag in the slurry, but also can improve the removal rate of the drilling slag in the slurry, thereby effectively improving the recycling utilization rate of the slurry.
Description
Technical Field
The invention belongs to the technical field of pile foundation engineering construction, and particularly relates to sand layer bored pile slurry precipitation and filtration equipment and a filtration method.
Background
When the sand layer bored pile is used for boring construction, soil around the bore hole has a tendency of collapsing holes into the bore hole under the action of horizontal soil pressure because the soil layer is loose, if wall protection is not carried out, the bore hole collapses, so when the bored pile is used for boring, a wall protection operation is carried out by using slurry with the relative density of more than 1 in the bore hole in order to prevent the collapse of the bore hole, the bore hole slurry consists of water, clay and additives, the effects of suspending drill slag, cooling drill bits and lubricating drilling tools are achieved, the effect of hydrostatic pressure is increased, mud skin is formed on the bore hole wall, the seepage flow inside and outside the bore hole is blocked, and meanwhile, the consistency of the slurry is determined according to the bore hole method and stratum conditions; when mud is introduced into a borehole, the method can be divided into a positive circulation construction method and a reverse circulation construction method according to a mud circulation mode, wherein the principle of the positive circulation construction method is as follows: firstly, introducing slurry into a hollow drill rod of a rotary drilling machine, then spraying the slurry from the bottom of the drill rod, then carrying the drilled soil slag to flow upwards along the hole wall, and finally carrying the soil slag out of the hole opening and flowing into a slurry sedimentation tank.
In order to recycle the field mud and reduce the waste of resources and pollution to the environment, in the prior art, a mud tank and a sedimentation tank are arranged before construction, drilling slag is discharged from a hole along with the mud into the sedimentation tank during construction, the mud after natural sedimentation is returned into a drilled hole through the mud tank to form continuous recycling sedimentation and purification, the method can recycle the mud discharged from the drilled hole, but in the actual construction process, a large amount of drilling slag can be drilled by a drill bit during drilling, and after the drilling slag enters the sedimentation tank along with the mud, the large amount of drilling slag can be quickly precipitated to the bottom of the sedimentation tank, but small drilling slag can be in a suspension state in the mud for a long time, so that sedimentation and filtration can be completed on the mud, and the recycling rate of the mud is lower.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a sand layer bored pile slurry precipitation filtering device and a filtering method which can overcome the problems or at least partially solve the problems.
In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: the utility model provides a sand bed bored concrete pile mud sediment filtration equipment, includes the sedimentation tank of setting at the other mud pit, still includes: the filtering pool is arranged between the mud pool and the sedimentation pool; the filter plate is arranged at the lower end of the interior of the sedimentation tank; the first slurry pump is arranged at the bottom of the sedimentation tank, a feed inlet of the first slurry pump is communicated with a discharge outlet at the bottom of the sedimentation tank, and a discharge outlet of the first slurry pump is communicated with a feed inlet of the filtering tank; the second rotating rod is rotationally connected in the filtering pool through a second bracket; the filter boxes are fixedly connected to the second rotating rod at equal intervals in a circumferential manner; the upper end of one side of the filtering pool adjacent to the mud pool is provided with a through hole, and the through hole on the filtering pool is communicated with the through hole on the mud pool through a conveying pipe.
In order to be convenient for scrape the drilling slag that deposits on the filter plate and move, avoid the drilling slag to plug up the filtration pore of filter plate, further, the open end department of sedimentation tank is through first support mounting has first actuating cylinder, the rotation of sedimentation tank is connected with first dwang, the upper end of first dwang extends into in the first actuating cylinder, the position department that first dwang is located the first actuating cylinder is the equidistant fixedly connected with polylith first blade of circumference, the lower extreme fixedly connected with of first dwang is a plurality of scrapes strip that paste with the filter plate slip mutually, switch on through first conveying pipeline between the discharge gate of first slush pump and the first actuating cylinder, the discharge gate department switch on of first actuating cylinder has the second conveying pipeline, the second conveying pipeline is switch on with the feed inlet of filtering pond mutually.
In order to facilitate the subsequent cleaning of drilling slag, the filter plate is further provided with a hollow cone table, and the outer side of the filter plate is provided with a collecting groove.
In order to prevent drill slag at the edge of the filter plate from falling to the bottom of the sedimentation tank when the filter plate is taken out to clean the drill slag, the cleaning amount of staff is increased, and furthermore, a circle of inclined guide ring is fixedly connected to the outer side of the upper end of the filter plate.
In order to be convenient for utilize mud drive filter cartridge to rotate, further, fixedly connected with second actuating cylinder on the second support, the upper end of second dwang extends into in the second actuating cylinder, the position that the second dwang is located the second actuating cylinder is circumference equidistant fixedly connected with second blade, the discharge gate of second conveying pipeline is linked together with the feed inlet of second actuating cylinder, the discharge gate of second actuating cylinder is linked together through the third conveying pipeline with the feed inlet of filtering pond.
In order to ensure the consistency of the slurry, the filter box is further internally provided with a plurality of rotating shafts in an equidistant rotating manner, the end parts of the rotating shafts are fixedly connected with a plurality of impeller blades in a circumferential equidistant manner, and the positions, close to the impeller blades, of the rotating shafts are fixedly connected with a plurality of stirring plates in a circumferential equidistant manner.
In order to avoid blocking the filtering holes of the filtering box by drilling slag and affecting the passing of mud, the stirring plate is further in sliding contact with one surface of the filtering box, which is provided with the filtering holes.
In order to ensure that the stirring plate can sufficiently scrape off the drilling slag on the filter holes, the filter holes on the filter box are arranged at a position close to the stirring plate.
In order to prevent drill slag which is not captured by the filter box from flowing into the mud pit, the filtering effect on mud is further improved, and further, a filter screen is fixedly connected to an opening of one end of the conveying pipe, which is close to the filtering pit.
A filtering method of sand layer bored pile slurry comprises the following steps:
s1, after circulating flowing slurry and drilling slag generated by drilling flow into a sedimentation tank, the slurry preliminarily filtered by a filter plate is pumped into a filtering tank through a first slurry pump;
s2, after the slurry is pumped by a first slurry pump, the slurry is conveyed into a first driving cylinder through a first conveying pipe, and then a first blade plate drives a scraping strip to rotate on a filter plate through a first rotating rod under the impact of the slurry so as to scrape drill residues deposited on the filter plate;
s3, after the slurry flows out of the first driving cylinder, the slurry is conveyed into the second driving cylinder through the second conveying pipe, the second blade plate drives the filter box to rotate under the impact of the slurry through the second rotating rod, then the slurry leaving the second driving cylinder is conveyed into the filtering pond through the third conveying pipe, and when the filter box rotates in the filtering pond, drilling residues suspended in the slurry are captured into the filter box to be collected, so that the drilling residues are separated from the slurry;
s4, continuously conveying the slurry into the filtering pond, and when the liquid level of the slurry is higher than that of the conveying pipe, refluxing the filtered slurry into the slurry pond again through the conveying pipe so as to recycle the slurry, so that drilling residues in the slurry can be continuously filtered and removed repeatedly.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects: according to the invention, through the cooperation of the structures such as the sedimentation tank, the filtering tank, the filter plate, the second rotating rod and the filter box, compared with the mode of adopting natural sedimentation to remove drill slag in slurry in the prior art, when the recycled slurry mixed with the drill slag is subjected to sedimentation filtering and recycling, the filtering effect of the drill slag in the slurry can be ensured, and the removal rate of the drill slag in the slurry can be improved, so that the recycling utilization rate of the slurry is effectively improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of a sedimentation tank, a filtering tank, a filter plate, an inclined guide ring, a scraping strip, a filter box, a rotating shaft and impeller blades in the invention;
FIG. 3 is a schematic structural diagram of a sedimentation tank, a filtering tank, a first slurry pump, a first driving cylinder, a first blade, a second driving cylinder and a second blade;
FIG. 4 is a schematic view of a filter plate and inclined deflector ring according to the present invention;
FIG. 5 is a schematic view of the structure of the filter cartridge, shaft, impeller blades and agitation plate of the present invention;
FIG. 6 is a schematic diagram of the sedimentation tank, filtering tank, slurry tank and drilling equipment, second slurry pump, first housing, second housing;
FIG. 7 is a schematic view of the present invention in operation with a drilling apparatus;
FIG. 8 is a second schematic structural view of the present invention in operation with a drilling apparatus;
fig. 9 is a schematic structural view of the first housing, the second housing, the third blade, the fourth blade, the tensioning telescopic rod and the scraper according to the present invention.
In the figure: 1. a sedimentation tank; 101. a filter plate; 1011. an inclined guide ring; 102. a first mud pump; 103. a first feed delivery tube; 104. a first drive cylinder; 105. a first rotating lever; 106. a first louver; 107. scraping the strip; 108. a second feed delivery tube; 2. filtering out a pool; 201. a second driving cylinder; 202. a third feed delivery tube; 203. a second rotating lever; 204. a second louver; 205. a filter box; 206. a rotating shaft; 207. impeller blades; 208. an agitating plate; 3. a slurry pool; 4. a delivery tube; 401. a filter screen; 5. drilling equipment; 501. a second slurry pump; 502. a fourth feed delivery tube; 503. a fifth feed delivery tube; 504. a first housing; 505. a first rotation shaft; 506. a third louver; 507. an annular gas storage tank; 508. an eccentric wheel; 509. a self-resetting air bag; 6. a second housing; 601. a gas pipe; 602. a second rotation shaft; 603. a fourth louver; 604. tensioning the telescopic rod; 605. a scraper.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
Example 1: referring to fig. 1-9, a sand layer bored pile mud sediment filter device, including setting up the sedimentation tank 1 of the next side of mud pit 3, still include: the filtering pool 2 is arranged between the mud pool 3 and the sedimentation pool 1; a filter plate 101 installed at the inner lower end of the sedimentation tank 1; the first slurry pump 102 is arranged at the bottom of the sedimentation tank 1, a feed inlet of the first slurry pump 102 is communicated with a discharge outlet at the bottom of the sedimentation tank 1, and a discharge outlet of the first slurry pump 102 is communicated with a feed inlet of the filtering tank 2; a second rotating rod 203 rotatably connected to the filtering pond 2 through a second bracket; a plurality of groups of filter boxes 205 are fixedly connected to the second rotating rod 203 at equal intervals in the circumference; the upper ends of one sides of the filtering ponds 2 adjacent to the mud ponds 3 are provided with through holes, and the through holes on the filtering ponds 2 are communicated with the through holes on the mud ponds 3 through conveying pipes 4.
The open end of sedimentation tank 1 is equipped with first actuating cylinder 104 through first support, sedimentation tank 1 internal rotation is connected with first dwang 105, the upper end of first dwang 105 extends into first actuating cylinder 104, the position department that first dwang 105 is located in first actuating cylinder 104 is equidistant fixedly connected with polylith first blade 106 of circumference, the lower extreme fixedly connected with of first dwang 105 is a plurality of scraping strips 107 that paste with filter plate 101 slip, put through first conveying pipeline 103 between the discharge gate of first slush pump 102 and the first actuating cylinder 104, the discharge gate department switch-on of first actuating cylinder 104 has second conveying pipeline 108, second conveying pipeline 108 is put through with the feed inlet of filtering pond 2.
The second bracket is fixedly connected with a second driving cylinder 201, the upper end of a second rotating rod 203 extends into the second driving cylinder 201, the position of the second rotating rod 203 in the second driving cylinder 201 is circumferentially and equally spaced and fixedly connected with a second blade plate 204, the discharge port of the second conveying pipe 108 is communicated with the feed port of the second driving cylinder 201, and the discharge port of the second driving cylinder 201 is communicated with the feed port of the filtering pond 2 through a third conveying pipe 202.
In order to avoid that mud and drilling slag are deposited at the bottoms of the first driving barrel 104 and the second driving barrel 201 when flowing in the first driving barrel 104 and the second driving barrel 201 for a long time, the rotation of the first blade 106 and the second blade 204 is affected, and in the process of installing the equipment, the first conveying pipe 103, the second conveying pipe 108 and the third conveying pipe 202 can be detachably connected with the first driving barrel 104 and the second driving barrel 201, so that when the components on the sedimentation tank 1 and the filtering tank 2 are removed after drilling is finished, the mud and the drilling slag in the first driving barrel 104 and the second driving barrel 201 are cleaned conveniently, and the normal operation of the equipment is prevented from being affected when the mud and the drilling slag are deposited in the first driving barrel 104 and the second driving barrel 201.
When the pile is drilled on a designated site, a concrete column is poured in a pile hole, and the stability of a building built above is improved, a sedimentation tank 1, a filtering tank 2 and a mud tank 3 can be excavated and built beside the drilling position, when the drilling machine drills, mud with corresponding consistency configured according to the soil structure in the mud tank 3 is conveyed into the pile, the pile hole is communicated with the sedimentation tank 1 as shown in fig. 7, so that mud overflowing the pile hole is conveyed into the sedimentation tank 1, the mud can circulate in the pile hole by continuously conveying the mud into the pile hole, and drilling residues generated by drilling can be brought into the sedimentation tank 1 together by the circulating mud, so that the drilling residues in the pile hole are sufficiently cleaned.
When the used slurry and the drilling residues enter the sedimentation tank 1 together, the first slurry pump 102 can be started at the moment, then the larger drilling residues can be quickly precipitated on the filter plate 101 under the action of self gravity, the slurry and some smaller drilling residues can be conveyed into the first conveying pipe 103 through the filter plate 101 by the first slurry pump 102, then the slurry and some smaller drilling residues can be conveyed into the first driving cylinder 104 through the first conveying pipe 103, then the first blade 106 can drive the scraping strip 107 to rotate through the first rotating rod 105 under the impact of the slurry, so that the larger drilling residues filtered on the filter plate 101 can be scraped, the filter holes of the filter plate 101 are prevented from being blocked by the larger drilling residues, and the slurry passing is influenced.
When the mud and the smaller drill residues flow out of the first driving barrel 104, the mud and the smaller drill residues are conveyed into the second driving barrel 201 through the second conveying pipe 108, then the second blade 204 drives the filter box 205 to rotate under the impact of the mud through the second rotating rod 203, then the mud and the smaller drill residues which leave the second driving barrel 201 are conveyed into the filtering pond 2 through the third conveying pipe 202, and the smaller drill residues are firstly in a suspended state in the mud and then slowly fall down to precipitate, so that the drill residues suspended in the mud are captured into the filter box 205 to be collected when the filter box 205 rotates in the filtering pond 2, so that the drill residues in the mud can be sufficiently filtered and separated, and the filtered mud can flow back into the mud pond 3 through the conveying pipe 4 when the mud is higher than the conveying pipe 4, so that the mud can be continuously recycled, and therefore, the drill residues in the mud can be continuously filtered and removed.
Through the cooperation of sedimentation tank 1, filtering pond 2, filter plate 101, second dwang 203, filter cartridge 205 isotructure, compare with the mode that adopts natural sediment to clear away the drilling mud in the mud among the prior art, not only can guarantee the clearance effect to the drilling mud in the mud, can also improve the clearance rate to the drilling mud in the mud to the utilization ratio to mud cyclic utilization has been improved effectively.
Example 2: referring to fig. 1-9, a sand layer bored pile mud precipitation filtration device is basically the same as embodiment 1, and further, the filter plate 101 is a hollow cone frustum, and a collection groove is arranged on the outer side of the filter plate 101, when the first rotating rod 105 drives the scraping strip 107 to scrape the drilling slag on the filter plate 101, the drilling slag can move outwards into the collection groove along the inclined plane of the filter plate 101 at this time, so that not only is the filter plate 101 convenient to clean, but also the drilling slag can be collected, and the subsequent cleaning work of the drilling slag is facilitated.
The upper end outside fixedly connected with round slope water conservancy diversion ring 1011 of filter plate 101, when great drilling mud sinks and drops on filter plate 101, slope water conservancy diversion ring 1011 can play the effect of water conservancy diversion to great drilling mud, avoids part drilling mud to attach to filter plate 101's edge to when taking out filter plate 101 to clear up the drilling mud, the drilling mud that is located filter plate 101 edge falls to the bottom of sedimentation tank 1, thereby increases staff's clearance volume, has improved the efficiency to the drilling mud clearance effectively.
Example 3: referring to fig. 1-9, a sand layer bored pile mud sediment filtering apparatus is substantially the same as that of embodiment 2, further, a plurality of rotating shafts 206 are rotatably connected in the filter box 205 at equal intervals, the end portions of the rotating shafts 206 are fixedly connected with a plurality of impeller blades 207 at equal intervals in a circumferential direction, the positions, close to the impeller blades 207, on the rotating shafts 206 are fixedly connected with a plurality of stirring plates 208 at equal intervals in a circumferential direction, when the second rotating rod 203 drives the filter box 205 to rotate in mud, the impeller blades 207 drive the stirring plates 208 to stir in the filter box 205 through the rotating shafts 206 under the action of mud, and at the moment, small drill slag intercepted in the filter box 205 and part of substances in the mud are separated under the stirring of the stirring plates 208, so that mud suspended in the mud can better penetrate the filter box 205, and part of mud is prevented from being intercepted in the filter box 205 together with the drill slag, thereby reducing the consistency of the recovered mud and effectively ensuring the consistency of the mud.
It should be noted that, when the stirring plate 208 stirs in the filter box 205, because the filter box 205 will also rotate in the slurry, some smaller scum in the filter box 205 will be located in the filter box 205 under the centrifugal force generated by the rotation of the filter box 205, so that some smaller scum is prevented from leaving the filter box 205 under the stirring of the stirring plate 208, and the effect of cleaning the drill slag in the slurry is effectively ensured.
The stirring plate 208 is attached to one surface of the filter box 205, which is provided with a filter hole, in a sliding manner, when the impeller blade 207 drives the stirring plate 208 to stir and separate substances in drilling slag and slurry through the rotating shaft 206, the stirring plate 208 can also scrape the drilling slag attached to the filter hole of the filter box 205, so that the blocking of the filter hole by the drilling slag is avoided, the passing of the slurry is influenced, and the separation effect of the drilling slag and the slurry is effectively ensured.
The filter holes on the filter box 205 are arranged at positions close to the stirring plate 208, and when the stirring plate 208 rotates, the stirring plate 208 can be ensured to sufficiently scrape off drilling residues on the filter holes.
Example 4: referring to fig. 1-9, a sand layer bored pile mud sediment filter device is basically the same as that of embodiment 3, further, the opening of the end of the conveying pipe 4 close to the filtering pool 2 is fixedly connected with a filter screen 401, when the mud filtered by the filtering pool 2 to remove small drilling slag flows back into the mud pool 3 through the conveying pipe 4, the filter screen 401 can have a sufficient filtering effect on the mud, so that the drilling slag which is not captured by the filter box 205 is prevented from flowing into the mud pool 3, and the filtering effect on the drilling slag is effectively improved.
Example 5: referring to fig. 1-9, a sand layer bored pile slurry deposition filtering apparatus is substantially the same as that of embodiment 4, further comprising a first casing 504, the first casing 504 is fixedly connected to a hollow drill rod in the boring apparatus 5, a first rotating shaft 505 is rotatably connected to the first casing 504, a plurality of third blades 506 are fixedly connected to the first rotating shaft 505 at equal intervals circumferentially, an annular gas storage tank 507 is fixedly connected to one side of the first casing 504, a plurality of self-resetting gas bags 509 are fixedly connected to an inner wall of the annular gas storage tank 507 at equal intervals, a gas outlet of the self-resetting gas bag 509 is connected to the annular gas storage tank 507, an eccentric 508 is fixedly connected to one end of the first rotating shaft 505 extending into the annular gas storage tank 507, a second casing 6 is fixedly connected to a position on the second support, which is close to the filter screen 401, the second shell 6 is communicated with the annular gas storage tank 507 through a gas pipe 601, a second rotating shaft 602 is rotationally connected to the second shell 6, a plurality of fourth blades 603 are fixedly connected to the second rotating shaft 602 at equal intervals in circumference, a tensioning telescopic rod 604 is fixedly connected to one end of the second support, a scraper 605 is fixedly connected to the telescopic end of the tensioning telescopic rod 604, the scraper 605 is attached to the filter screen 401 in an intermittent sliding mode, a second slurry pump 501 is arranged between the drilling equipment 5 and the slurry tank 3, a fourth conveying pipe 502 and a fifth conveying pipe 503 are respectively communicated with a feed inlet and a feed outlet of the second slurry pump 501, the feed inlet of the fourth conveying pipe 502 extends into the slurry tank 3, and a discharge outlet of the fifth conveying pipe 503 is communicated with a feed inlet of a hollow drill rod in the drilling equipment 5.
When the sedimentation tank 1, the filtering tank 2 and the mud tank 3 are built and installed beside a drilling site, and mud is filled into the sedimentation tank 3, at the moment, a worker can transport the drilling equipment 5 to a designated position of the drilling site, then the hollow drill rod and the second mud pump 501 in the drilling equipment 5 can be started at the same time, then the hollow drill rod drives the drill bit to drill the drilling site, and meanwhile, the mud can be conveyed into the drilling site through the fourth conveying pipeline 502 and the fifth conveying pipeline 503, so that the drilled pile hole is filled with the mud, the pile hole is communicated with the sedimentation tank 1 as shown in fig. 7, and therefore redundant mud can carry the drilling slag into the sedimentation tank 1 together for recycling, and the mud can be enabled to circulate in the pile hole through continuous conveying to guide out the drilling slag generated by the drilling site out of the filling pile, meanwhile, the drill bit and the lubricating drill can be cooled through circulating flow, the hydrostatic pressure can be increased, mud skin is formed on the wall of the hole, the inner and outer flow of the hole is blocked, stability of the pile hole is effectively ensured, and meanwhile, and the protection effect of the drilling equipment 5 is achieved.
When the slurry flows in the hollow drill rod, the slurry flows into the first shell 504, then the third blade 506 drives the eccentric wheel 508 to rotate through the first rotating shaft 505 under the impact of the slurry, the eccentric wheel 508 circularly extrudes a plurality of self-resetting air bags 509 when rotating, then the self-resetting air bags 509 continuously supply air to the annular air storage box 507, then the gas in the annular air storage box 507 is conveyed into the second shell 6 through the gas pipe 601, then the fourth blade 603 drives the tensioning telescopic rod 604 to rotate through the second rotating shaft 602 under the impact of the gas, the tensioning telescopic rod 604 drives the scraper 605 to rotate, and when the scraper 605 contacts the filter screen 401, the tensioning telescopic rod 604 can be compressed, so that the scraper 605 can be closely attached to the filter screen 401, and then small drill residues attached to the filter screen 401 can be scraped when the scraper 605 slides on the filter screen 401, so that the rate of the slurry flowing back into the pool 3 is prevented from being blocked by the small drill residues.
When the drilling speed of the drilling equipment 5 is increased, the speed of the second slurry pump 501 for conveying the slurry into the hole pile is increased, so that the flow speed of the slurry in the hollow drill rod is increased, and then the third blade 506 is rotated faster under the impact of the slurry, so that the scraping speed of the scraper 605 on the filter screen 401 can be increased, the speed of the slurry flowing back into the slurry tank 3 is increased further, and the use amount of the slurry in the slurry tank 3 is ensured.
In order to rapidly filter the slurry mixed with the drilling slag when the slurry conveying rate is increased, when the filtering equipment is installed, a flowmeter can be installed on the gas pipe 601 and is electrically connected with the first slurry pump 102, so that the speed of the slurry flow rate can be reflected according to the speed of the gas flow rate, the first slurry pump 102 can adjust corresponding output power according to the speed of the slurry flow rate, the treatment efficiency of the used slurry is ensured, and the supply of the slurry is effectively ensured.
Further, the second rotating shaft 602, the tensioning telescopic rod 604 and the scraper 605 are all hollow, the second rotating shaft 602, the tensioning telescopic rod 604 and the scraper 605 are mutually communicated, an air inlet (not shown in the figure) is formed in the position of the second rotating shaft 602, which is located in the second housing 6, two groups of air nozzles (shown in fig. 9) are symmetrically formed in one side, away from the tensioning telescopic rod 604, of the scraper 605, when the air enters the second housing 6 to drive the scraper 605 to rotate through the fourth blade 603, the air in the second housing 6 enters the scraper 605 through the second rotating shaft 602 and the tensioning telescopic rod 604, and then when the scraper 605 scrapes on the filter screen 401, the air is sprayed to the filter screen 401 through the air nozzles, so that drill slag on the filter screen 401 can be removed more fully.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention in any way, although the present invention has been described in the preferred embodiments, and is not limited thereto.
Claims (5)
1. The utility model provides a sand layer bored concrete pile mud sediment filtration equipment, includes sedimentation tank (1) of setting aside in mud pit (3), its characterized in that still includes:
the filtering pool (2) is arranged between the mud pool (3) and the sedimentation tank (1);
a filter plate (101) mounted at the lower end of the interior of the sedimentation tank (1);
the first slurry pump (102) is arranged at the bottom of the sedimentation tank (1), a feed inlet of the first slurry pump (102) is connected with a discharge outlet at the bottom of the sedimentation tank (1), and a discharge outlet of the first slurry pump (102) is connected with a feed inlet of the filtering tank (2);
the second rotating rod (203) is rotatably connected in the filtering pool (2) through a second bracket;
a plurality of groups of filter boxes (205) are fixedly connected to the second rotating rod (203) at equal intervals in a circumferential manner;
the upper ends of one sides of the filtering ponds (2) adjacent to the mud ponds (3) are provided with through holes, and the through holes on the filtering ponds (2) are communicated with the through holes on the mud ponds (3) through conveying pipes (4);
the utility model discloses a sedimentation tank, which is characterized in that a first driving cylinder (104) is arranged at the opening end of the sedimentation tank (1) through a first bracket, a first rotating rod (105) is connected in the sedimentation tank (1) in a rotating way, the upper end of the first rotating rod (105) is extended into the first driving cylinder (104), a plurality of first blades (106) are fixedly connected at equal intervals on the position of the first rotating rod (105) in the first driving cylinder (104), a plurality of scraping strips (107) which are in sliding contact with a filter plate (101) are fixedly connected at the lower end of the first rotating rod (105), a second conveying pipe (108) is connected between the discharge port of a first slurry pump (102) and the first driving cylinder (104) through a first conveying pipe (103), the second conveying pipe (108) is connected at the discharge port of the first driving cylinder (104), a second driving cylinder (201) is fixedly connected on the second bracket, a plurality of scraping strips (107) which are in sliding contact with the filter plate (101) are fixedly connected at the position of the second driving cylinder (201), the second feeding port of the second driving rod (203) is connected at the same interval with the second driving cylinder (201) in the second driving cylinder (201), the discharge port of the second driving cylinder (201) is communicated with the feed port of the filtering pond (2) through a third conveying pipe (202), a plurality of rotating shafts (206) are rotatably connected in the filtering box (205) at equal intervals, a plurality of impeller blades (207) are fixedly connected to the end parts of the rotating shafts (206) at equal intervals in a circumferential mode, a plurality of stirring plates (208) are fixedly connected to the positions, close to the impeller blades (207), of the rotating shafts (206) at equal intervals in a circumferential mode, the stirring plates (208) are in sliding contact with one face, provided with filtering holes, of the filtering box (205), a filter screen (401) is fixedly connected to the position, close to an opening at one end of the filtering pond (2), of the conveying pipe (4), of drill slag suspended in mud is captured in the filtering box (205) for collection, the impeller blades (207) drive the stirring plates (208) to stir in the filtering box (205) through the rotating shafts (206), and small drill slag and partial substances in the small drill slag are separated under stirring of the stirring plates (208) so that the mud can pass through the filtering box (205);
the drilling equipment further comprises a first shell (504), the first shell (504) is fixedly connected to a hollow drill rod in the drilling equipment (5), a first rotating shaft (505) is rotationally connected to the first shell (504), a plurality of third blades (506) are fixedly connected to the first rotating shaft (505) at equal intervals in a circumferential direction, an annular gas storage tank (507) is fixedly connected to one side of the first shell (504), a plurality of self-resetting air bags (509) are fixedly connected to the inner wall of the annular gas storage tank (507) at equal intervals, an air outlet of the self-resetting air bags (509) is communicated with the annular gas storage tank (507), one end of the first rotating shaft (505) extends into the annular gas storage tank (507) and is fixedly connected with an eccentric wheel (508), a second shell (6) is fixedly connected to a position, close to a filter screen (401), a second rotating shaft (602) is rotationally connected to the second shell (6) through a circular gas storage tank (507) through a rotary pipe (601), a plurality of self-resetting air bags (509) are fixedly connected to the second rotating shaft (602), a plurality of telescopic rods (604) are fixedly connected to one end of telescopic rods (602) at equal intervals on a second support, and the telescopic rods (602) are fixedly connected to one end of the telescopic rods (602), the scraper blade (605) is pasted with filter screen (401) intermittent type slip mutually, set up second slush pump (501) between drilling equipment (5) and mud pit (3), the feed inlet and outlet of second slush pump (501) has put through fourth conveying pipeline (502), fifth conveying pipeline (503) respectively, the feed inlet of fourth conveying pipeline (502) extends to in mud pit (3), the discharge gate of fifth conveying pipeline (503) is put through with the feed inlet of drilling equipment (5) hollow drill rod, eccentric wheel (508) are when rotating, can be to a plurality of self-reset gasbag (509) carry out the circulation extrusion, then self-reset gasbag (509) just can be continuous to the interior air feed of annular gas storage tank (507), fourth impeller (603) just can drive tensioning telescopic link (604) through second axis of rotation (602) at gaseous impact and rotate.
2. The sand layer bored pile mud precipitation and filtration equipment according to claim 1, wherein the filter plate (101) is arranged in a hollow truncated cone shape, and a collecting groove is arranged on the outer side of the filter plate (101).
3. The sand layer bored pile mud precipitation filtering equipment according to claim 2, wherein a circle of inclined guide rings (1011) are fixedly connected to the outer side of the upper end of the filter plate (101).
4. A sand layer bored pile mud sediment filter apparatus as set forth in claim 1, wherein the filter holes of the filter box (205) are provided at positions close to the stirring plate (208).
5. A method for filtering slurry of a sand layer cast-in-situ bored pile, which adopts the sand layer cast-in-situ bored pile slurry precipitation filtering device as claimed in claim 1, and is characterized by comprising the following steps:
s1, after circulating flowing slurry and drilling slag generated by drilling flow into a sedimentation tank (1), the slurry preliminarily filtered by a filter plate (101) is pumped into a filtering tank (2) through a first slurry pump (102);
s2, after the slurry is pumped out by the first slurry pump (102), the slurry is conveyed into the first driving cylinder (104) through the first conveying pipe (103), and then the first blade plate (106) drives the scraping strip (107) to rotate on the filter plate (101) through the first rotating rod (105) under the impact of the slurry to scrape the drilling slag deposited on the filter plate (101);
s3, after the slurry flows out of the first driving cylinder (104), the slurry is conveyed into the second driving cylinder (201) through the second conveying pipe (108), the second blade plate (204) drives the filter box (205) to rotate under the impact of the slurry through the second rotating rod (203), then the slurry leaving the second driving cylinder (201) is conveyed into the filtering pool (2) through the third conveying pipe (202), and when the filter box (205) rotates in the filtering pool (2), drilling residues suspended in the slurry are captured into the filter box (205) to be collected, so that the drilling residues are separated from the slurry;
s4, continuously conveying the slurry into the filtering pool (2), and when the liquid level of the slurry is higher than that of the conveying pipe (4), refluxing the filtered slurry into the slurry pool (3) through the conveying pipe (4) so as to recycle the slurry, so that drilling residues in the slurry can be filtered and removed continuously repeatedly.
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| CN202311191414.2A CN116920514B (en) | 2023-09-15 | 2023-09-15 | Sand layer bored pile slurry precipitation filtering equipment and filtering method |
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| CN202311191414.2A CN116920514B (en) | 2023-09-15 | 2023-09-15 | Sand layer bored pile slurry precipitation filtering equipment and filtering method |
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| CN205714054U (en) * | 2016-05-03 | 2016-11-23 | 重庆城建控股(集团)有限责任公司 | A kind of cast-in-situ bored pile Slarry cycling appts |
| CN109882097A (en) * | 2019-03-14 | 2019-06-14 | 博建建工有限公司 | A kind of hole-drilling system of cast-in-situ bored pile |
| CN113464052A (en) * | 2021-05-17 | 2021-10-01 | 衡阳公路桥梁建设有限公司 | Reverse circulation efficient pore-forming construction device and method for underwater cast-in-situ bored pile |
| CN215565808U (en) * | 2021-08-18 | 2022-01-18 | 安徽恒峰建设工程有限公司 | Mud liquid's that municipal works were used circulation processing apparatus |
| CN115417541A (en) * | 2022-08-25 | 2022-12-02 | 桑圣洁 | Energy-saving sewage treatment device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20115311L (en) * | 2011-03-31 | 2012-10-01 | Kati Ab Kalajoki Oy | Procedure for purification of drilling fluid used in sampling drilling in bedrock and purification unit |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205714054U (en) * | 2016-05-03 | 2016-11-23 | 重庆城建控股(集团)有限责任公司 | A kind of cast-in-situ bored pile Slarry cycling appts |
| CN109882097A (en) * | 2019-03-14 | 2019-06-14 | 博建建工有限公司 | A kind of hole-drilling system of cast-in-situ bored pile |
| CN113464052A (en) * | 2021-05-17 | 2021-10-01 | 衡阳公路桥梁建设有限公司 | Reverse circulation efficient pore-forming construction device and method for underwater cast-in-situ bored pile |
| CN215565808U (en) * | 2021-08-18 | 2022-01-18 | 安徽恒峰建设工程有限公司 | Mud liquid's that municipal works were used circulation processing apparatus |
| CN115417541A (en) * | 2022-08-25 | 2022-12-02 | 桑圣洁 | Energy-saving sewage treatment device and method |
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