CN214304286U

CN214304286U - Water-gas separation type vacuum preloading shield muck draining device

Info

Publication number: CN214304286U
Application number: CN202120600169.6U
Authority: CN
Inventors: 崔冠男; 林晓栋; 袁更; 李宗豪; 杨树军
Original assignee: Second Engineering Co Ltd of China Railway Construction Bridge Engineering Bureau Group Co Ltd
Current assignee: Second Engineering Co Ltd of China Railway Construction Bridge Engineering Bureau Group Co Ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-09-28
Anticipated expiration: 2031-03-24

Abstract

The application relates to the technical field of muck drainage, in particular to a water-gas separation type vacuum preloading shield muck drainage device which comprises a containing assembly, a water guide assembly and a drainage assembly, wherein the containing assembly is used for containing muck, the water guide assembly is arranged in the containing assembly, the drainage assembly is connected with the water guide assembly, and the containing assembly comprises a muck bin with an opening and a closing piece used for covering the opening of the muck bin; the water guide assembly comprises a plurality of first water guide pieces arranged on the inner wall of the slag-soil bin, the water discharge assembly comprises a vacuum pump, a water-gas separation tank, a water discharge pump and a vacuum tube, the air inlet end of the vacuum pump is connected with the air outlet end of the water-gas separation tank, and the water inlet end of the water discharge pump is connected with the water outlet end of the water-gas separation tank; the vacuum pipe is connected to the feed end of water-gas separation tank, and the vacuum pipe links to each other with first water guide. This application can effectively reduce the condition that the dregs were omitted because of the water content is big appears in carrying the transportation process, reduces the environmental pollution problem among the dregs transportation process.

Description

Water-gas separation type vacuum preloading shield muck draining device

Technical Field

The application relates to the technical field of muck drainage, in particular to a water-gas separation type vacuum preloading shield muck drainage device.

Background

In the process of building the subway, the tunnel for the subway to pass through is generally built in a shield construction mode. A large amount of muck is generated in the process of shield construction, the construction site of the tunnel is generally in a city, and the muck needs to be dumped to a corresponding spoil point because the city lacks a site which needs to use the muck and store the muck. In the related art, the muck is usually loaded and transported to a designated dock by using a transport vehicle, and then the muck is transported to a spoil site by using a ship.

Aiming at the related technology, because the water content of the dregs is large, the dregs are easy to miss in the process of conveying and transporting, and the influence on the environment of urban roads and wharfs is caused.

SUMMERY OF THE UTILITY MODEL

In order to reduce the condition that the dregs were omitted because of the moisture content is big and appear the dregs in the transport transportation process, reduce the environmental pollution problem among the dregs transportation process, this application provides a moisture disconnect-type vacuum preloading shield constructs dregs unwatering device.

The application provides a moisture disconnect-type vacuum preloading shield constructs dregs unwatering device adopts following technical scheme:

a water-gas separation type vacuum preloading shield muck unwatering device comprises a containing assembly, a water guide assembly and a drainage assembly, wherein the containing assembly is used for containing muck, the water guide assembly is arranged in the containing assembly, the drainage assembly is connected with the water guide assembly, and the containing assembly comprises a muck bin with an opening and a sealing piece used for covering the opening of the muck bin; the water guide assembly comprises a plurality of first water guide pieces arranged on the inner wall of the slag-soil bin, the water drainage assembly comprises a vacuum pump, a water-gas separation tank, a water drainage pump and a vacuum tube, the air inlet end of the vacuum pump is connected with the air outlet end of the water-gas separation tank, and the water inlet end of the water drainage pump is connected with the water outlet end of the water-gas separation tank; the vacuum pipe is connected to the feed end of the water-gas separation tank and is connected with the first water guide piece.

By adopting the technical scheme, the muck to be drained is placed in the muck bin, water and air enter the vacuum tube through the first water guide piece by suction of the vacuum pump, then enter the water-air separation tank, and the water-air separation is realized in the water-air separation tank; then, the water is pumped and discharged through a drainage pump, and the gas is discharged through a vacuum pump; along with the extension of the operation time, the air pressure in the muck is gradually reduced, most of free water in the muck is discharged through the drainage assembly, the purpose of draining the muck is achieved, the situation that the muck is omitted in the conveying and transporting process due to the fact that the muck is high in water content is effectively reduced, and the problem of environmental pollution in the muck conveying process is reduced; meanwhile, the omission of the muck in the transportation process is reduced, and the cost consumption of each project of earthwork transportation team for subsequently processing the omitted muck is correspondingly reduced.

Optionally, the water guide assembly further comprises a plurality of second water guide members which are vertically arranged, the plurality of second water guide members are horizontally arranged in the slag-soil bin at intervals, and the plurality of second water guide members are all connected to the vacuum pipe.

By adopting the technical scheme, the second water guide pieces which are arranged at intervals can divide the muck bin into a plurality of small spaces, and the muck in the small spaces is surrounded by the first water guide pieces and the second water guide pieces; in the actual drainage process, the drainage efficiency of free water in the muck can be improved, and the situation that a large amount of free water is reserved in the middle of the muck due to the fact that the muck is far away from the first water guide piece is reduced.

Optionally, the first water guiding pieces on the sidewall of the slag-soil bin are arranged at intervals.

By adopting the technical scheme, compared with the situation that the first water guide piece is fully paved on the side wall of the muck bin, the paving cost of the first water guide piece can be reduced; meanwhile, under the same power of the vacuum pump, the arrangement of the first water guide members is less, so that the vacuum suction force of each first water guide member is stronger, and the free water in the residue soil is driven to flow more easily in the actual water drainage process.

Optionally, the vacuum pump is provided with two, two the vacuum pump all connects in the end of giving vent to anger of aqueous vapor knockout drum, and two the vacuum pump with the aqueous vapor knockout drum is given vent to anger and all is equipped with the stop valve between the end.

By adopting the technical scheme, the vacuum pumps are easy to be damaged in the process of running for a long time, the two vacuum pumps can be arranged to be mutually standby, and the two vacuum pumps are started in turn in cooperation with the stop valve in the actual work, so that the service lives of the vacuum pumps are effectively prolonged; meanwhile, when one vacuum pump is damaged, the other vacuum pump can be replaced to work, and the damaged vacuum pump is replaced, so that the downtime waiting time is reduced; in addition, when a large vacuum pumping force is needed, the two vacuum pumps can be started simultaneously to work simultaneously.

Optionally, a three-way pipe is arranged at the air outlet end of the water-gas separation tank, the two vacuum pumps are respectively connected with two connecting ends of the three-way pipe, and the stop valve is arranged between the three-way pipe and the vacuum pumps.

Through adopting above-mentioned technical scheme, utilize the setting of three-way pipe, can form two vacuum pumps and the water gas knockout drum end of giving vent to anger to be connected, and the three-way pipe can be convenient for the installation of stop valve, and simple structure is practical.

Optionally, the vacuum tube is connected with a pipeline, the first water guide piece is provided with a first joint matched with the pipeline, and the second water guide piece is provided with a second joint matched with the pipeline.

By adopting the technical scheme, the vacuum tube is connected with the pipeline, the first water guide piece is provided with the first joint, the second water guide piece is provided with the second joint, and then the connection between the pipeline and the first joint and the connection between the pipeline and the second joint can be realized, so that the connection between the first water guide piece and the vacuum tube and the connection between the second water guide piece and the vacuum tube can be realized.

Optionally, the sealing member includes an air-permeable film, and a protective layer for reducing the air-permeable film from being scratched by foreign matters in the soil is laid on the soil at the opening of the soil bin.

By adopting the technical scheme, after the muck is filled into the muck bin, the protective layer is firstly paved on the muck, the air-permeable prevention film is paved at the opening of the muck bin, and the air-permeable prevention film is tightly sucked at the opening of the muck bin by utilizing the negative pressure generated in the muck bin after the vacuum pump is started, so that the aim of sealing the opening of the muck bin is fulfilled; compared with the cover plate, the air-permeation-proof film has lower cost and soft texture, and is easy to operate to form a closed drainage environment.

Optionally, the drainage assembly further comprises a support base, and the vacuum pump, the water-gas separation tank and the drainage pump are all arranged on the support base.

Through adopting above-mentioned technical scheme, all install vacuum pump, aqueous vapor knockout drum, drain pump on the supporting seat and form a whole, when the position of drainage subassembly is adjusted to needs, more convenient and fast.

Optionally, the distance between two adjacent second water guiding members is 25-30 cm.

By adopting the technical scheme, if the distance between the second water guiding pieces is too large, the drainage efficiency is low, and if the distance between the second water guiding pieces is too small, a larger number of second water guiding pieces are needed, so that the cost is relatively higher; when the distance between the adjacent second water guide pieces is 25-30cm, the second water guide pieces are reasonably arranged at intervals, and good drainage efficiency for the dregs can be achieved.

Optionally, the distance between every two adjacent first water guiding members arranged at intervals is 25-30 cm.

By adopting the technical scheme, when the distance between the adjacent first water guide pieces on the side wall of the muck bin is 25-30cm, the arrangement at intervals is reasonable, and better drainage efficiency for muck can be achieved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the condition that the residue soil is omitted in the conveying and transporting process due to large water content is effectively reduced, and the problem of environmental pollution in the residue soil conveying process is reduced;

2. the drainage efficiency of free water in the muck is high, and the condition that a large amount of free water is reserved in the middle of the muck can be reduced;

3. set up two vacuum pumps and can be each other for reserve, in the actual work, the use of cooperation stop valve launches in turn two vacuum pumps, effectively prolongs the life of vacuum pump.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic top view of a slag bin in an embodiment of the present application.

FIG. 3 is a schematic top view of a drain assembly in an embodiment of the present application.

Description of reference numerals: 1. a containment assembly; 11. a residue soil bin; 13. a gas-impermeable film; 14. a first water guide plate; 141. a first joint; 15. a second water guide plate; 151. a second joint; 2. a drainage assembly; 21. a supporting seat; 22. a vacuum pump; 221. a three-way pipe; 222. a stop valve; 23. a water-gas separation tank; 24. draining pump; 241. a drain pipe; 25. a vacuum tube; 26. a pipeline.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses water-gas separation type vacuum preloading shield muck unwatering device. Referring to fig. 1, the water-gas separation type vacuum preloading shield muck unwatering device comprises a containing assembly 1 for containing muck, a water guide assembly positioned in the containing assembly 1 and a drainage assembly 2 connected to the water guide assembly, wherein the containing assembly 1 comprises a muck bin 11 with an opening formed in the upper part and a sealing part for covering the opening of the muck bin 11; the slag hopper 11 has a rectangular shape in plan view, and in the present embodiment, the slag hopper 11 is formed by pouring concrete.

Referring to fig. 1 and 2, the water guide assembly includes a plurality of first water guide members and a plurality of second water guide members, wherein the plurality of first water guide members are laid on the inner wall of the slag-soil bin 11, that is, the first water guide members are laid on the inner side wall of the slag-soil bin 11, and also laid on the inner bottom wall of the slag-soil bin 11. In the embodiment, the first water guiding member is a plastic water guiding member; and, the plastics water guide of diapire is the form of spreading side by side fully in the dregs storehouse 11, and the plastics water guide of 11 inside walls in dregs storehouse is arranged along locating lateral wall interval. Meanwhile, the distance between the adjacent plastic water guides which are arranged at intervals along the same inner side wall of the muck bin 11 is 25-30 cm.

Referring to fig. 1 and 2, after the muck is filled in the muck bin 11, the second water guide piece is inserted into the muck to realize the relative fixation between the second water guide piece and the muck bin 11. Meanwhile, the second water guide pieces are arranged at intervals along the length direction of the muck bin 11, and the distance between every two adjacent water guide pieces is 25-30 cm. In this embodiment, the second water guide member includes a rectangular steel plate serving as a force bearing main body and plastic water guide members fixed on two side walls of the rectangular steel plate; the rectangular steel plate can be a steel plate with the thickness of 1cm, so that the overall quality is reduced as much as possible under the condition of keeping good bearing capacity and structural strength.

Specifically, two side walls of the rectangular steel plate can be connected with the galvanized iron plate round hole mesh screen in a welding or screwing mode, the plastic water guide piece is positioned between the rectangular steel plate and the galvanized iron plate round hole mesh screen, and the purpose of fixing the plastic water guide piece on the rectangular steel plate is achieved by utilizing the limiting effect of the rectangular steel plate and the galvanized iron plate round hole mesh screen on the plastic water guide piece.

Referring to fig. 1 and 3, a drainage assembly 2 is connected to the first water guide and the second water guide and is used for extracting and draining free water in the residue soil, and specifically, the drainage assembly 2 includes a support base 21, a vacuum pump 22, a water-gas separation tank 23, a drainage pump 24 and a vacuum pipe 25; wherein, the supporting seat 21 is arranged at one side adjacent to the slag-soil bin 11, and the vacuum pump 22, the water-gas separation tank 23 and the draining pump 24 are all mounted on the supporting seat 21 through bolts.

Referring to fig. 1 and 3, an air inlet end of the vacuum pump 22 is connected to an air outlet end of the water-gas separation tank 23, and specifically, the air outlet end of the water-gas separation tank 23 is connected to a three-way pipe 221; correspondingly, two vacuum pumps 22 are provided, and the two vacuum pumps 22 are respectively connected with two connecting ends of the three-way pipe 221 so as to realize the connection of the two vacuum pumps 22 and the air outlet end of the water-gas separation tank 23 through the three-way pipe 221. Meanwhile, a stop valve 222 is installed between the three-way pipe 221 and the vacuum pump 22, and the two vacuum pumps 22 are mutually standby through the arrangement of the three-way pipe 221 and the stop valve 222. The water inlet end of the water discharge pump 24 is connected with the water outlet end of the water-gas separation tank 23, and the water discharge end of the water discharge pump 24 is connected with a water discharge pipe 241, so that the water pumped by the water discharge pump 24 is directionally discharged through the water discharge pipe 241.

Referring to fig. 1 and 3, a vacuum pipe 25 is installed at the feed end of the water-gas separation tank 23, and the vacuum pipe 25 is connected with a plurality of pipelines 26; correspondingly, the first water guiding member is provided with a first joint 141 matched with the pipeline 26, and the second water guiding member is provided with a second joint 151 matched with the pipeline 26, so that the connection between the vacuum pipe 25 and the first water guiding member and the connection between the vacuum pipe 25 and the second water guiding member are realized through the connection between the pipeline 26 and the first joint 141 and the connection between the pipeline 26 and the second joint 151.

Referring to fig. 1, the closing member is a gas permeation prevention film 13, and in this embodiment, the gas permeation prevention film 13 can be a plastic film; the anti-permeability film 13 is used for preventing the communication between the residue soil bin 11 and the outside atmosphere, so that the residue soil bin 11 can be vacuumized after the vacuum pump 22 is started, and a good drying effect is achieved. In addition, in order to reduce the situation that the air-permeable film 13 laid at the opening of the residue soil bin 11 is scratched by foreign matters in the soil, before the air-permeable film 13 is laid, a geotextile is laid as a protective layer. In addition, during the normal laying process, since the air-permeation preventing film 13 has a light weight, in order to prevent the air-permeation preventing film 13 from being blown, a soft and relatively heavy object may be pressed on the upper portion of the air-permeation preventing film 13, and specifically, bagged sand may be pressed on the air-permeation preventing film 13.

The implementation principle of the water-gas separation type vacuum preloading shield muck unwatering device in the embodiment of the application is as follows: when the water guide device is used, the muck to be drained is placed in the muck bin 11, the second water guide piece is inserted, and the pipeline between the water guide component and the water-gas separation tank 23 is correspondingly connected and laid. After a layer of geotextile is laid as a protective layer, the air-permeable prevention film 13 is laid, and the air-permeable prevention film 13 is pressed by bagged sand.

The pressure inside the muck silo 11 is reduced by the suction of the vacuum pump 22, so that the air-impermeable film 13 covers and seals the opening of the muck silo 11 due to negative pressure. Then, the water vapor is introduced into the vacuum pipe 25 through the first water guide, the second water guide and the pipe 26, and then introduced into the water vapor separation tank 23, and water vapor separation is performed in the water vapor separation tank 23. Then, the water is discharged by suction of the drain pump 24, and the gas is discharged by the vacuum pump 22.

Along with the extension of operating time, the pneumatics in the dregs reduces gradually, and the free water in the dregs is most discharged via first water guide and second water guide, reaches the purpose of dredgeing the dregs, effectively reduces the dregs because of the moisture content is big and appears the condition that the dregs were omitted in the transport transportation process, reduces the environmental pollution problem among the dregs transportation process.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a moisture disconnect-type vacuum preloading shield constructs dregs and soil unwaters device which characterized in that: the slag-soil-containing device comprises a containing assembly (1) for containing slag soil, a water guide assembly arranged in the containing assembly (1) and a drainage assembly (2) connected with the water guide assembly, wherein the containing assembly (1) comprises a slag bin (11) with an opening and a closing piece for covering the opening of the slag bin (11); the water guide assembly comprises a plurality of first water guide pieces arranged on the inner wall of the slag-soil bin (11), the drainage assembly (2) comprises a vacuum pump (22), a water-gas separation tank (23), a drainage pump (24) and a vacuum pipe (25), the air inlet end of the vacuum pump (22) is connected with the air outlet end of the water-gas separation tank (23), and the water inlet end of the drainage pump (24) is connected with the water outlet end of the water-gas separation tank (23); the vacuum pipe (25) is connected to the feeding end of the water-gas separation tank (23), and the vacuum pipe (25) is connected with the first water guide piece.

2. The water-gas separation type vacuum preloading shield muck drainage device of claim 1, which is characterized in that: the water guide assembly further comprises a plurality of second water guide pieces which are vertically arranged, the second water guide pieces are horizontally arranged in the slag-soil bin (11) at intervals, and the second water guide pieces are all connected to the vacuum pipe (25).

3. The water-gas separation type vacuum preloading shield muck drainage device of claim 1, which is characterized in that: the first water guiding pieces on the side wall of the slag-soil bin (11) are arranged at intervals.

4. The water-gas separation type vacuum preloading shield muck drainage device of claim 1, which is characterized in that: vacuum pump (22) are provided with two, two vacuum pump (22) all connect in the end of giving vent to anger of vapor separation jar (23), and two vacuum pump (22) with vapor separation jar (23) are given vent to anger and are all equipped with stop valve (222) between the end.

5. The water-gas separation type vacuum preloading shield muck drainage device of claim 4, which is characterized in that: the air outlet end of the water-gas separation tank (23) is provided with a three-way pipe (221), the two vacuum pumps (22) are respectively connected with the two connecting ends of the three-way pipe (221), and the stop valve (222) is arranged between the three-way pipe (221) and the vacuum pumps (22).

6. The water-gas separation type vacuum preloading shield muck drainage device of claim 2, which is characterized in that: the vacuum pipe (25) is connected with a pipeline (26), the first water guide piece is provided with a first joint (141) matched with the pipeline (26), and the second water guide piece is provided with a second joint (151) matched with the pipeline (26).

7. The water-gas separation type vacuum preloading shield muck drainage device of claim 6, which is characterized in that: the sealing piece comprises an air-permeable film (13), and a protective layer for reducing the air-permeable film (13) from being scratched by foreign matters in the soil is paved on the soil at the opening of the soil bin (11).

8. The water-gas separation type vacuum preloading shield muck drainage device of claim 1, which is characterized in that: the drainage assembly (2) further comprises a supporting seat (21), and the vacuum pump (22), the water-gas separation tank (23) and the drainage pump (24) are arranged on the supporting seat (21).

9. The water-gas separation type vacuum preloading shield muck drainage device of claim 2, which is characterized in that: the distance between two adjacent second water guiding members is 25-30 cm.

10. The water-gas separation type vacuum preloading shield muck drainage device of claim 3, which is characterized in that: the distance between every two adjacent first water guiding pieces which are arranged at intervals is 25-30 cm.