CN218934359U - Pump lifting reverse circulation device for cleaning holes of concrete filling pile - Google Patents

Abstract

The utility model discloses a pump lifting reverse circulation device for cleaning a hole of a concrete filling pile, which comprises a slurry pump, wherein the slurry pump is placed in a guide pipe, a sealing element is arranged between the slurry pump and the guide pipe, a guide plate for guiding slurry upwards is arranged at an outlet of the slurry pump, a connecting chain with adjustable length is connected above the slurry pump, the upper end of the connecting chain is connected with a slurry output pipe, and the slurry output pipe is detachably matched and connected with the top of the guide pipe. The device can realize the effect of clear hole fast among the prior art, and the operation is with low costs, and is simple to use convenient.

Description

Pump lifting reverse circulation device for cleaning holes of concrete filling pile

Technical Field

The utility model relates to the field of highway bridges, in particular to a pump lifting reverse circulation device for cleaning holes of a concrete filling pile.

Background

In the field of bridge construction, after the bored concrete pile is formed, hole cleaning treatment is needed, so that the sand content ratio in slurry is reduced, and the pouring quality is improved. The general method is to pour the conduit by using the concrete, put down in the pile hole, pour in the qualified mud into the top opening of the conduit, then flow out from the bottom opening of the conduit, utilize the sufficient mud flow, wash out the mud and sand at the bottom of the hole of the bored concrete pile, under the condition that make mud mix with gravel, flow upward in the bored concrete pile, carry the mud up, flow out from the top opening of the bored concrete pile, achieve the purpose of clearing the hole, although the technology is mature, the time of clearing the hole is longer.

For the deep hole filling pile with complex geology, in order to prevent the hole collapse phenomenon, the hole cleaning work needs to be completed as soon as possible, and at this time, a gas lift reverse circulation process is generally adopted to clean the hole. The gas lift reverse circulation process has the advantages of high hole cleaning speed and good effect, and has the defects of needing to manufacture a special reverse circulation device, being long and thin in size, taking time and labor in installation, high sealing performance requirement, needing to prepare a large-sized air compressor unit and providing high-pressure and high-flow gas, thus having larger equipment volume, high manufacturing cost, large electricity consumption or oil consumption and the like.

Disclosure of Invention

The utility model discloses a pump lifting reverse circulation device for cleaning holes of a concrete filling pile, which aims to solve the problems that in the prior art, holes are required to be quickly cleaned to prevent hole collapse, the manufacturing cost of equipment can be greatly reduced, and the device is simple and convenient to use.

The utility model provides a clear hole of bored concrete pile lifts reverse circulation device with pump, includes the slush pump, the slush pump is placed in the pipe, be provided with sealing member between slush pump and the pipe inner wall, sealing member sets up between the lower part of slush pump advances thick liquid mouth and upper portion play thick liquid mouth, and sealing member realizes the seal between the pump body and the pipe inner wall, separates the pipe into the thick liquid region of inhaling of lower part and the thick liquid region of play of upper portion.

Preferably, a connecting chain with adjustable length is connected above the slurry pump, the upper end of the connecting chain is connected with a slurry output pipe, and the slurry output pipe is detachably matched and connected with the top of the guide pipe.

Preferably, the slurry outlet of the slurry pump is provided with a baffle for guiding the slurry upwards.

Preferably, a filter plate is arranged at the inlet of the slurry pump, and stirring blades are arranged at the lower end of the filter plate. The stirring blade is used for cleaning sundries on the filter plate to prevent blockage.

Preferably, the stirring vane is connected with a pump body shaft of the slurry pump.

Preferably, the lower end of the slurry pump is provided with a supporting seat outside the stirring blade. The supporting seat plays a role in protection, and prevents the stirring vane from colliding with during placement and installation.

Preferably, the lower end of the slurry output pipe is in threaded connection with the guide pipe, a slurry outlet is arranged on the side face of the slurry output pipe, and the screw thread fit can simultaneously realize the fixation of the slurry output pipe and the sealing of the joint.

Preferably, the lower end of the slurry output pipe is provided with a movable screw cap which is in threaded connection with the guide pipe.

The device is placed in a guide pipe, the device is placed at a position below the mud level in the guide pipe, a connecting chain plays a role in positioning, a sealing element of a mud pump plays a role in sealing between the sealing element and the guide pipe, so that the whole guide pipe is changed into an elongated mud suction pipe, the mud pump is started, sediment deposited at the bottom of a filling pile is sucked through a bottom opening of the guide pipe through the suction effect of the mud pump, and then flows through a guide plate through the mud outlet pushing effect of the mud pump, so that the mud is restrained from flowing from bottom to top after rotating, and flows out from a mud output pipe outlet at the top of the guide pipe, the hole cleaning process of pump lifting reverse circulation is realized, the sealing element is arranged at the sealed position of the guide pipe, the upper space and the lower space are in a mud pumping suction area, a negative pressure state, and the upper space is in a mud pumping and pushing area, and a positive pressure state.

The utility model has the beneficial effects that:

by arranging the slurry pump in the guide pipe, the utility model sucks the sediment at the bottom of the cast-in-place pile and conveys the sediment to the top of the guide pipe, and conveys the sediment from the top of the guide pipe to the slurry pool, thus the utility model has the advantages of short hole cleaning time, low device precision and manufacturing cost, low operation cost and extremely high cost performance.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a partial cross-sectional view of the present utility model;

FIG. 3 is a block diagram of mud delivery;

FIG. 4 is a block diagram of the present link chain and two-end mechanism;

in the figure, 1, a power line, 2, a hoisting point, 3, a slurry outlet, 4, a connecting chain, 5, a conduit, 6, a guide plate, 7, a slurry outlet, 8, a sealing element, 9, a supporting seat, 10, a pump body shell, 11, a motor, 12, an internal power line, 13, a movable screw cap, 14, a slurry output pipe, 15, a stirring blade, 16, a pump body shaft, 17, an impeller, 18 and a filter plate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings of the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

As shown in fig. 1-2, the utility model discloses a pump lifting reverse circulation device for cleaning holes of a concrete filling pile, which is characterized in that a slurry pump is placed in a concrete conduit 5, the front end, namely the lower end, of the slurry pump is provided with a supporting seat 9, the supporting seat is cylindrical, the outer wall of the cylinder is provided with a plurality of hollow weight-reducing holes at intervals, and the upper end of the supporting seat is connected with a pump body shell 10. In the inner space of the cylindrical support seat 9, stirring blades 15 are arranged, the stirring blades are connected with a pump body shaft 16 inside the slurry pump, the upper end of the pump body shaft is connected with a motor 11, and a plurality of guide plates 6 are arranged on the shell of the motor. The filter plate 18 connected with the pump shell is arranged above the stirring blades, and can filter large-particle impurities in the slurry to prevent the large-particle impurities from entering the pump body to cause the blockage of the pump body. The stirring blade is used for cleaning sundries adsorbed below the filter plate, so that blockage of the filter plate holes is prevented, and unsmooth suction is caused.

A sealing element 8 is arranged between a pump body shell 10 and a guide pipe 5 of the slurry pump, a gap between the pump body shell and the inner wall of the guide pipe can be sealed by the sealing element, an impeller 17 is arranged outside a pump body shaft, slurry at the bottom of the guide pipe is pumped into the pump body through a hole on a filter plate 18 under the action of motor driving impeller rotation, and then is output into the guide pipe above the pump body through a slurry outlet 7, the rotated slurry is conveyed upwards under the inhibition of a guide plate 6, and when the slurry is conveyed to a slurry output pipe 14 at the top of the guide pipe, the slurry is discharged into a slurry pool from a slurry outlet 3 at the side surface of the slurry output pipe.

The upper part of the slurry pump is connected with a connecting chain 4 with adjustable length, the connecting chain is formed by connecting a plurality of sections of iron rings at first, and the length of the connecting chain can be changed by increasing or decreasing the number of the iron rings. The upper end of the connecting chain is connected with the top of the slurry output pipe, a hanging point 2 at the top of the slurry output pipe is hung through hanging equipment, a slurry pump can be installed in a cast-in-place pile guide pipe, a power line 1 penetrates through the slurry output pipe and then extends downwards, the power line is combined with an internal power line 12 extending downwards along the guide pipe, and finally the power line is connected to a motor 11 to supply power for the motor, and the motor 11 is used for providing driving force for the slurry pump.

The lower extreme of mud output tube is provided with movable nut 13, and movable nut's inner circle sets up the internal thread, and the upper end of pipe sets up the external screw thread, and the internal screw thread combines with the external screw thread, is fixed in the pipe upper end with the mud output tube. The side surface of the mud output pipe is provided with a mud outlet 3, and the mud is conveyed to the mud output pipe in the guide pipe through pump body power and the guide of the guide plate and then is discharged to a mud pit through the mud outlet 3.

The connecting chain here can also be replaced by connecting ropes.

The working process of the utility model is as follows:

when the concrete conduit 5 is lowered into place, a certain height is properly lifted according to the estimated sediment quantity, the slurry is prevented from blocking the bottom opening of the conduit, a lifting point 2 at the upper end of a slurry output pipe is lifted by using lifting equipment, a concrete slurry output pipe 14 is lifted, a slurry pump body is lifted together through a pump body connecting chain 4, the slurry pump is placed into the concrete conduit, the length of the pump body connecting chain is set in advance according to the height of the slurry water level in the cast-in-place pile, the pump body is lowered to a position 2 to 3 meters below the slurry water level, and a movable screw cap 13 is screwed into the upper end of the concrete conduit 5 to enable internal and external screw threads to be connected and screwed in place. The mud pump is electrified, and the rotating speed of the mud pump can be regulated through a power supply device such as a frequency converter and the like so as to control the mud flow, so that the hole cleaning speed is controllable. The concrete conduit can be properly moved up and down in the hole cleaning process, and the relative position of the bottom opening of the conduit and sediment is adjusted to avoid blocking the conduit.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a clear hole of bored concrete pile lifts reverse circulation device with pump, its characterized in that includes the slush pump, the slush pump is placed in pipe (5), be provided with sealing member (8) between slush pump and the pipe inner wall, sealing member sets up in the lower part of slush pump and advances between thick liquid mouth and the upper portion play thick liquid mouth, separates into the thick liquid region of inhaling of lower part and the play thick liquid region of upper portion with the pipe.

2. The reverse pumping circulation device for cleaning holes of concrete filling piles according to claim 1, wherein a connecting chain (4) with adjustable length is connected above the slurry pump, the upper end of the connecting chain is connected with a slurry output pipe (14), and the slurry pump is provided with a slurry outlet pipe

The mud output pipe is detachably matched and connected with the top of the guide pipe.

3. A pump-up reverse circulation device for cleaning a hole of a bored concrete pile according to claim 1, wherein a slurry outlet (7) of the slurry pump is provided with a deflector (6) for guiding slurry upward.

4. A pump-up reverse circulation device for cleaning holes of concrete filling piles according to claim 1, wherein a filter plate (18) is arranged at the inlet of the slurry pump, and a stirring blade (15) is arranged at the lower end of the filter plate.

5. The pump-up reverse circulation device for cleaning holes of concrete bored piles according to claim 4, wherein a support seat (9) is provided at the lower end of the slurry pump outside the stirring vane.

6. A reverse pumping circulation device for cleaning holes of a bored concrete pile according to claim 4, wherein the stirring vane (15) is connected with a pump body shaft of a slurry pump.

7. A pump-up reverse circulation device for cleaning holes of concrete filling piles according to claim 2, wherein the lower end of the slurry output pipe (14) is in threaded connection with the guide pipe (5), and the side surface of the slurry output pipe is provided with a slurry outlet (3).

8. A pump-up reverse circulation device for cleaning holes of cast-in-place concrete piles according to claim 7, characterized in that the lower end of the slurry output pipe (14) is provided with a movable screw cap (13) which is in threaded connection with the guide pipe (5).

Images