CN211474058U

CN211474058U - Well washing device

Info

Publication number: CN211474058U
Application number: CN202020138460.1U
Authority: CN
Inventors: 陈贺朝; 曲晶玉; 孔令科; 许彬
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-09-11
Anticipated expiration: 2030-01-21

Abstract

The utility model provides a well washing device, which comprises a sludge discharge pipe and a sludge tank arranged at a well mouth, wherein the top end of the sludge discharge pipe is arranged in the sludge tank, and is also provided with a water injection pipe, and the water outlet of the water injection pipe is positioned in the well; the bottom of the sludge discharge pipe is hermetically connected with the mixing cavity; the mixing cavity comprises an upper funnel-shaped slag suction chamber and a straight cylindrical stirring chamber, and the slag suction chamber and the stirring chamber are integrally formed; the upper part of the mixing cavity is also provided with an air connecting end which is connected with an air compressor through an air pressure air conveying pipe, when the device is used, the mixing cavity is deeply inserted into silt, the bottom of the mixing cavity is sealed by utilizing water pressure and atmospheric pressure, slurry is pushed by utilizing high-pressure air, the depth of the dewatering well can be calculated according to geological conditions for construction, the depth does not need to be increased on the calculated depth, meanwhile, in sediment increased in the later period, the sediment is washed out by adopting a construction method, the control is easy, the dirt cleaning speed is high, the cost is saved, and the dewatering water level required by engineering is ensured.

Description

Well washing device

Technical Field

The utility model relates to a building site is with precipitation well sediment clearance instrument, specifically is a well cleaning device of sediment thickness in reduction well that can be quick.

Background

At present, in constructional engineering, aiming at projects needing precipitation engineering, the continuous accumulation of sediments in a precipitation well is considered, so that the depth of the precipitation well is gradually reduced. Particularly, under special geological conditions, rainfall is over or geological drawings are loose and are easy to run off, and the rainfall depth is easy to be greatly reduced. The water storage depth of the dewatering well cannot meet the engineering requirement. Therefore, the precipitation well needs to be desilted according to the accumulation condition of the sediment and the construction requirement. In the prior art, the dredging consumes long time, the operation is very inconvenient, the geological condition and the construction condition are not exact, and the dredging work is heavy and the proper period cannot be determined. Situations that affect the construction often still occur.

In the prior art, when a well is washed by precipitation, workers need to go down to the well first to arrange equipment, sediment and water at the bottom of the well are stirred by the equipment, and the equipment is started to extract slurry at the bottom of the well when the cement is uniform. The existing well washing construction has no clear data on how deep the dewatering well needs to meet the requirement, and the well washing and dredging are often determined according to construction experience. When the precipitation well sinks and silts, the precipitation well can not reduce the water level to the water level required by construction, and the normal operation of construction is influenced.

How to keep the limited depth of the precipitation well all the time in the actual construction process, complete the precipitation condition required by the project and ensure that the normal operation of the project becomes the problem to be solved by the project personnel.

SUMMERY OF THE UTILITY MODEL

In the continuous exploration process, a tool and a construction method capable of washing out foundation pit sediments are researched by a simple tool.

A well washing device comprises a sludge discharge pipe and a sludge tank arranged at a well mouth, wherein the top end of the sludge discharge pipe is arranged in the sludge tank, and a water injection pipe is also arranged, and the water outlet of the water injection pipe is positioned in a well; the bottom of the sludge discharge pipe is hermetically connected with the mixing cavity; the mixing cavity comprises an upper funnel-shaped slag suction chamber and a straight cylindrical stirring chamber, and the slag suction chamber and the stirring chamber are integrally formed; the upper part of the mixing cavity is also provided with an air connecting end which is connected with an air compressor through an air pressure air conveying pipe.

When the device is used, the mixing cavity is deeply inserted into silt, the bottom of the mixing cavity is sealed by using water pressure and atmospheric pressure, and slurry is pushed by using high-pressure air. The invention aims to calculate the depth of the dewatering well according to geological conditions for construction, and the depth does not need to be increased in the aspect of calculating the depth, so that the cost is saved. Meanwhile, in the sediment added in the later period, the sediment is washed out by adopting a construction method, so that the precipitation water level required by the engineering is ensured, and the guarantee is provided for the engineering. The device has simple pipeline, light total weight of the well entering device, easy control and high cleaning speed.

Drawings

FIG. 1 is an overall block diagram of the well flushing apparatus of the present invention;

FIG. 2 is a diagram of a mixing chamber configuration;

FIG. 3 is a bottom view of the mixing chamber.

In the figure: an air compressor 1, a high-pressure air delivery pipe 2, a sludge discharge pipe 3, a sludge tank 4, a mixing cavity 5, a slag suction chamber 51 and a stirring chamber 52.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The well washing device shown in figures 1-3 comprises a sludge discharge pipe 3 and a sludge tank 4 arranged at the well mouth, wherein the top end of the sludge discharge pipe 3 is arranged in the sludge tank 4. And a water injection pipe is also arranged, and a water outlet of the water injection pipe is positioned in the well.

The bottom of the sludge discharge pipe 3 is hermetically connected with the mixing cavity 5; the mixing cavity 5 comprises an upper funnel-shaped slag suction chamber 51 and a lower straight cylindrical stirring chamber 52, wherein the slag suction chamber 51 and the stirring chamber 52 are integrally formed; the upper part of the mixing cavity 5 is also provided with an air connecting end which is connected with the air compressor 1 through a high-pressure air conveying pipe 2.

During the silt is inserted deeply when this device hybrid chamber uses, atmospheric pressure + hydraulic pressure through silt position form sealedly to the hybrid chamber under shed, utilize highly-compressed air to carry mud from hybrid chamber propelling movement to mud discharge pipe in, and then carry the sludge impoundment.

A well washing construction method is used for dredging a dewatering well, and the well washing construction method comprises the following specific steps:

1. numbering the dewatering wells one by one according to the construction requirements of the building engineering and the arrangement diagram of the dewatering wells, and measuring the depths of the dewatering wells one by one according to the construction requirements.

2. And (4) making construction records for each dewatering well, and finding the number of wells needing to be subjected to sediment cleaning in the wells by comparing the construction records with the previous measurement records.

3. Take out precipitation equipment from the well, insert the mixing chamber 5 of this device in the sediment in the well that needs the clearance sediment, under the equipment initial condition, make mixing chamber 5 and sediment upper strata contact.

4. And injecting water into the well to ensure that the water quantity in the well submerges the mixing cavity 5 and ensure that the equipment is always below the liquid level in the sludge suction process.

5. And opening the air compressor to enable high-pressure gas to enter the mixing cavity at a high speed through the air inlet pipeline, and flushing sediments at the bottom of the mixing cavity 5 under the action of the high-pressure gas to enable the sediments, water and the high-pressure gas to be mixed in the mixing cavity.

6. Along with the continuous charging of high-pressure gas, because the bottom of the mixing cavity is contacted with the sediment to form a sealing plug, the pressure in the mixing cavity is continuously increased, and the mixture of the sediment, water and gas is forced to be ejected out of the discharge pipe into the sediment tank.

7. During the process of high-pressure air filling, the mixing cavity is repeatedly lifted, lowered and moved, so that the sediment enters the mixing cavity.

The utility model discloses in the construction, the water source to water injection in the well can adopt general engineering to supply water, can also include the supernatant of sewage pond.

The construction method calculates the depth of the dewatering well according to geological conditions for construction, does not need to increase the depth in the calculated depth, and saves a large amount of labor cost, mechanical cost and material cost. Meanwhile, in the sediment added in the later period, the sediment is washed out by adopting a construction method, so that the precipitation water level is ensured, and the guarantee is provided for the engineering.

Claims

1. The utility model provides a well washing device, includes sludge discharge pipe and sets up the sludge impoundment at the well head, and sludge discharge pipe top sets up in the sludge impoundment, characterized by: the water injection pipe is also arranged, and a water outlet of the water injection pipe is positioned in the well; the bottom of the sludge discharge pipe is hermetically connected with the mixing cavity; the mixing cavity comprises an upper funnel-shaped slag suction chamber and a straight cylindrical stirring chamber, and the slag suction chamber and the stirring chamber are integrally formed; the upper part of the mixing cavity is also provided with an air connecting end which is connected with an air compressor through an air pressure air conveying pipe.