CN220768322U - Rain and sewage separation system for river, lake and sea slag discharge field - Google Patents

Abstract

The utility model discloses a rain and sewage separation system for a slag drain field in a river, a lake and a sea, which comprises a slag blocking wall, wherein a plurality of drain holes are formed in the wall body at intervals; the system effectively solves the problem of surface and underground water pollution of the existing deslagging site in rivers, lakes and seas, and achieves the effect of rain and sewage separation.

Description

Rain and sewage separation system for river, lake and sea slag discharge field

Technical Field

The utility model relates to the technical field of water pollution treatment of a slag discharge field, in particular to a rain and sewage separation system for a slag discharge field in a river, a lake or a sea.

Background

The site selection of the slag yard is determined by comprehensive analysis according to the conditions of slag yard capacity, occupied area, transportation distance, political engineering quantity and the like, and simultaneously the principle of 'occupying less cultivated land and damaging less water and soil conservation facilities'. The existing slag-discharging field is generally provided with a plurality of conditions close to rivers, lakes and seas, no perfect sewage treatment system is arranged in the slag-discharging field, and the surface and the underground water of the slag-discharging field pollute the adjacent rivers, lakes and seas to different degrees, so that perfect sewage treatment facilities are arranged in the existing slag-discharging field, and the pollution to the adjacent rivers, lakes and seas is avoided.

The most common drainage measures of the existing slag discharge field are that water intercepting ditches are arranged at the periphery of slag discharge, then the water intercepting ditches are directly discharged into nearby rivers, lakes and seas through the drainage ditches, meanwhile, slag blocking walls are arranged at the slope feet, water discharging holes are formed in the walls, sewage in the slag discharge field is directly discharged out of the slag discharge field through the water discharging holes to enter the rivers, lakes and seas, the sewage pollutes the rivers, lakes and seas, production and life of residents downstream of the water flow are adversely affected, and environmental protection is not facilitated. Therefore, a novel sewage treatment method of a slag discharge field needs to be designed, and pollution to nearby rivers, lakes and seas is avoided.

Disclosure of Invention

In view of the above, the utility model aims to provide a rain and sewage separation system for a slag discharge field of a river, a lake and a sea, so as to solve the problem of water pollution of the slag discharge field encountered by the existing slag discharge field of the river, the lake and the sea.

The utility model aims at realizing the following technical scheme:

a rain and sewage separation system for facing river, lake and sea slag discharge field comprises slag blocking walls with a plurality of water discharge holes at intervals, wherein the slag blocking walls are arranged on the sides of the slag discharge field facing the river, lake and sea, the slag blocking walls are provided with impervious walls, the bottoms of the impervious walls extend into the foundation to completely block deep sewage flow lines, two ends of each impervious wall are respectively and hermetically connected with two ends of the slag blocking walls, leaching liquid collecting tanks are formed between the impervious walls and the slag blocking walls, the leaching liquid collecting tanks are connected with a sewage treatment tank through drain pipes, and the sides of the slag discharge field, which deviate from the river, lake and sea, are annularly provided with intercepting drainage ditches for collecting rainwater outside the slag discharge field and discharging the rainwater to the river, lake and sea.

Further, be equipped with the wash port curtain of arranging along river lake sea water flow direction in the leaching solution collecting vat, the wash port curtain bottom is higher than the diaphragm wall, be equipped with the water pipe in every drilling of wash port curtain respectively, the interval is equipped with aperture, top on the water pipe underground part wall is higher than leaching solution collecting vat design water level and is less than the diaphragm wall, the water pipe underground part package has permeable geotechnique cloth.

Further, be equipped with a plurality of oblique wash port of face upward in the dregs field, be equipped with the pipe shaft in every oblique wash port and take the permeable tube of a plurality of apertures, the permeable tube runs through the dregs blocking wall, the permeable tube is the low side at dregs blocking wall end, the permeable tube is outer to be wrapped with water permeable geotechnique's cloth.

Further, the upward inclined drain holes are arranged in rows along the height direction of the slag discharge field, and two adjacent rows are staggered.

Further, the distance between adjacent upward inclined drain holes in the water flow of the river, the lake and the sea is 5 meters.

Further, the included angle between the upward inclined drain hole and the horizontal direction is 10-15 degrees.

Further, the side of the impervious wall facing the river, the lake and the sea is provided with an underground water quality monitoring point.

Further, the drainage intercepting ditch spans the drainage pipe through the aqueduct, and two ends of the aqueduct are respectively supported by the foundation.

Further, the foundation is an enlarged foundation, and the enlarged foundation bearing substrate is paved with a crushed stone cushion layer.

Still further, the drain pipe both ends parcel has permeable geotechnique cloth.

The beneficial effects of the utility model are as follows:

according to the rain and sewage separation system for the slag field of the river, the slag blocking wall is arranged to intercept slag soil of the slag field and discharge sewage of the slag field through the drain hole, the seepage wall is arranged to intercept the sewage of the slag field to prevent the sewage from flowing into the river, the lake and the sea, the leaching solution collecting tank is formed between the seepage wall and the slag blocking wall to collect the sewage of the slag field, the sewage collected by the leaching solution collecting tank is uniformly discharged to the sewage treatment tank for treatment and then is discharged, and rainwater outside the slag field is intercepted by the intercepting drainage ditch and discharged to the river, the lake and the sea to reduce the sewage treatment amount.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail with reference to the accompanying drawings, in which:

fig. 1 is a top view of the present utility model.

Fig. 2 is a cross-sectional view of the present utility model.

Fig. 3 is a schematic top view of the wall, leach pond, and aqueduct arrangement of fig. 1.

Fig. 4 is an elevational schematic view of the arrangement of the aqueduct and drain pipe of fig. 3.

Fig. 5 is a top view of the arrangement of the aqueduct and the drain pipe of fig. 3.

FIG. 6 is a schematic cross-sectional view of the aqueduct of FIG. 4.

Detailed Description

Hereinafter, preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are presented by way of illustration only and not by way of limitation.

As shown in figures 1-6, the rain and sewage separation system for a river, lake and sea slag discharge field comprises slag blocking walls 3, wherein a plurality of water discharge holes are formed in the wall body at intervals, the slag blocking walls 3 are arranged on the river, lake and sea side of the slag discharge field, the slag blocking walls 3 are provided with impervious walls 1, the bottoms of the impervious walls 1 extend into foundation depths to completely block deep sewage flow lines, two ends of the impervious walls 1 are respectively and hermetically connected with two ends of the slag blocking walls 3, leaching solution collecting tanks 2 are formed between the impervious walls 1 and the slag blocking walls 3, the leaching solution collecting tanks 2 are connected with a sewage treatment tank 6 through drain pipes 4, water intercepting and draining ditches 5 for collecting rainwater outside the slag discharge field and discharging the rainwater to the river, lake and sea are arranged on the slag discharge field in a surrounding mode, and the slag blocking walls 3 and the impervious walls 1 are of reinforced concrete structures.

The side of the intercepting and draining ditch 5 facing the slag discharging field is higher than the slag discharging field, and the intercepting and draining ditch is subjected to seepage prevention treatment.

The sewage treatment tank 6 is arranged on the downstream side of the diaphragm wall 1.

An opening is reserved on the downstream side of the impervious wall 1, the opening is connected with a drain pipe 4, and a gap between the opening and the drain pipe 4 is filled and sealed by polymer cement mortar.

Sewage in the slag discharge field enters the leaching liquid collecting tank 2 through a water discharge hole of the slag blocking wall 3, then enters the sewage treatment tank 6 through a water discharge pipe 4, is treated by a sewage treatment system to reach the standard, is discharged, and rainwater around the slag discharge field is collected by a water interception and drainage ditch and is discharged into rivers, lakes and seas.

The drainage hole curtain 10 arranged along the sea water flow direction of the river and the lake is arranged in the leaching solution collecting tank 2, the bottom of the drainage hole curtain 10 is higher than the impervious wall 1, water pipes are respectively arranged in each drilling hole of the drainage hole curtain 10, small holes are arranged on the wall of the underground part of each water pipe at intervals, the top of each water pipe is higher than the designed water level of the leaching solution collecting tank 2 and lower than the impervious wall 1, water-permeable geotechnical cloth is wrapped on the underground part of each water pipe, the adjacent drilling hole spacing of the drainage hole curtain 10 is 2-3 m, and the water pressure balance between the lower part of the leaching solution collecting tank and the inner part of the leaching solution collecting tank can be maintained by arranging the water pipes with special structures, so that the too high water level of the substrate of the slag blocking wall 3 is avoided because of the impervious wall 1, and the design of a drainage gallery referring to a dam is realized.

A plurality of upward inclined drain holes 11 are arranged in the slag discharge field, a water permeable pipe with a plurality of small holes on the pipe body is arranged in each upward inclined drain hole 11, the water permeable pipe penetrates through the slag blocking wall 3, the water permeable pipe is at the lower end of the slag blocking wall 3, and water permeable geotextile is wrapped outside the water permeable pipe, so that sewage inside the slag discharge field can be effectively discharged.

The upward inclined drain holes 11 are arranged in rows along the height direction of the slag discharge field, and two adjacent rows are staggered.

The distance between the upward adjacent upward inclined drain holes 11 in the river, the lake and the sea is 5 meters.

The included angle between the upward inclined drain hole 11 and the horizontal direction is 10-15 degrees.

The side of the impervious wall facing the river, the lake and the sea is provided with underground water quality monitoring points, the water quality monitoring points can be used for sampling and laboratory test, and also can be used for installing automatic in-situ monitoring equipment, so that whether sewage leakage occurs in a slag discharge field or not can be monitored in real time.

The intercepting drainage ditch 5 spans the drainage pipe 4 through the aqueduct 8, two ends of the aqueduct 8 are respectively supported by the foundation 7, namely, two ends of the aqueduct 8 are connected with the intercepting drainage ditch 5, a deformation joint is arranged at the joint of the aqueduct and the intercepting drainage ditch, and the joint is sealed by sealant.

The foundation 7 is an enlarged foundation, and the enlarged foundation bearing substrate is paved with a crushed stone cushion layer.

The aqueduct 8 and the foundation 7 are of reinforced concrete structures, the foundation 7 adopts an enlarged foundation, and when the bearing capacity of the foundation is not satisfied, the foundation is reinforced by a broken stone cushion layer.

The two ends of the drain pipe 4 are wrapped with water permeable geotextile, and part of waste slag can be filtered out.

A method for realizing a rain and sewage separation system for a slag discharge field in a river, a lake or a sea (the slag blocking wall 3 is an existing slag blocking wall 3), which comprises the following steps:

a. cleaning a place, installing a drilling machine, drilling a tilting drainage hole 11 by adopting a mechanical drilling machine, correspondingly adding a section of large-diameter steel sleeve pipe when adding a section of drill rod each time so as to prevent hole collapse, installing a perforated PVC water permeable pipe after drilling construction, and pulling out the steel sleeve pipe after installation, wherein the steel sleeve pipe can be recycled in a drainage hole curtain 10. The longitudinal spacing of the upward inclined drain holes 11 is 5 meters, the upward inclined drain holes are staggered up and down, and the included angle between the upward inclined drain holes and the horizontal direction is 10-15 degrees.

b. And calculating the elevation of the flood level according to the catchment area of the slag yard field, and determining the size of the reinforced concrete diaphragm wall 1 and the pipe diameter of the drain pipe 4 according to the elevation of the flood level.

c. Building a guide wall and a construction platform of the reinforced concrete diaphragm wall 1, adopting an impact drilling machine to form holes into grooves, cleaning up deposition at the bottom of the holes, manufacturing and installing a reinforcement cage, pouring concrete, and paving concrete mortar on a foundation between the diaphragm wall 1 and a slag blocking wall.

d. A row of drainage hole curtains 10 are drilled between a reinforced concrete impervious wall 1 and a slag blocking wall 3, a step a mechanical drilling machine is adopted for drilling, a section of large-diameter steel sleeve is correspondingly added when a section of drill rod is added each time, so that hole collapse is prevented, a PVC permeable pipe is installed after drilling construction is completed, small holes are drilled in the pipe wall of an underground part, the pipe wall of the overground part is not drilled, and the steel sleeve is pulled out after the installation is completed. The top of the drain hole curtain 10 is higher than the design water level of the leaching liquid collecting tank 2 and lower than the reinforced concrete impervious wall 1, and the longitudinal distance of the drain hole curtain 10 is 2-3 meters.

e. And c, reserving an opening on the reinforced concrete impervious wall to connect with a drain pipe 4, paving the drain pipe 4, filling and sealing a gap between the reinforced concrete impervious wall 1 and the drain pipe 4 with polymer cement mortar to prevent leakage, and wrapping the end part of the drain pipe 4 with water permeable geotextile 9. Building a sewage treatment pool 6, reserving an opening to be connected with a drain pipe 4, and wrapping water permeable geotextile 9 at the end part of the drain pipe 4.

f. The drainage ditch 5 is cut off at the peripheral part of the slag discharge field, and is connected with nearby river ditches.

g. Binding the steel bars of the foundation 7 and pouring concrete, and reinforcing the foundation by adopting a broken stone cushion layer when the bearing capacity of the foundation is not satisfied. After the foundation 7 is completed, binding and installing the steel bars of the aqueduct 8, pouring concrete, connecting the aqueduct 8 to the intercepting drainage ditch 5 across the two ends of the drainage pipe 4, arranging a deformation joint at the joint of the aqueduct 8 and the intercepting drainage ditch 5, and sealing the joint by adopting sealant.

h. 2 underground water quality monitoring points 12 are arranged between the reinforced concrete diaphragm wall 1 and the river channel, one at the upstream and the downstream, so as to periodically monitor the water quality.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present utility model, which is intended to be covered by the claims of the present utility model.

Claims (10)

1. A rain and sewage separation system for face river, lake and sea dregs field which characterized in that: including wall interval is equipped with slag blocking wall (3) of a plurality of water discharge holes, slag blocking wall (3) set up and face river lake sea side at the sediment field, slag blocking wall (3) face river lake sea side and are equipped with diaphragm wall (1), diaphragm wall (1) bottom stretches into the basic degree of depth for blocking deep sewage streamline completely, diaphragm wall (1) both ends respectively with slag blocking wall (3) both ends sealing connection, form leaching solution collecting vat (2) between diaphragm wall (1) and slag blocking wall (3), leaching solution collecting vat (2) are connected sewage treatment pond (6) through drain pipe (4), and the sediment field deviates from river lake sea side and encircles and be equipped with and collect the outer rainwater of sediment field and discharge to cut drainage ditch (5) of river lake sea.

2. A rain and sewage separation system for a river, lake or sea slag drain of claim 1, wherein: the drainage hole curtain (10) arranged along the sea water flow direction of the river and the lake is arranged in the leaching solution collecting tank (2), the bottom of the drainage hole curtain (10) is higher than the impervious wall (1), water pipes are respectively arranged in each drill hole of the drainage hole curtain (10), small holes are formed in the wall of the underground part of each water pipe at intervals, the top of each water pipe is higher than the design water level of the leaching solution collecting tank (2) and lower than the impervious wall (1), and water-permeable geotechnical cloth is wrapped in the underground part of each water pipe.

3. A rain and sewage separation system for a river, lake or sea slag drain of claim 1, wherein: the slag discharge field is internally provided with a plurality of upward inclined drain holes (11), each upward inclined drain hole (11) is internally provided with a water permeable pipe with a pipe body provided with a plurality of small holes, the water permeable pipe penetrates through the slag blocking wall (3), the water permeable pipe is at the lower end of the slag blocking wall (3), and the water permeable pipe is externally wrapped with water permeable geotechnical cloth.

4. A rain and sewage separation system for a river, lake or sea slag drain of claim 3, wherein: the upward inclined drain holes (11) are arranged in rows along the height direction of the slag discharge field, and two adjacent rows are staggered.

5. A rain and sewage separation system for a river, lake or sea slag drain of claim 3, wherein: the distance between adjacent upward inclined drain holes (11) in the water flow of the river, the lake and the sea is 5 meters.

6. A rain and sewage separation system for a river, lake or sea slag drain of claim 3, wherein: the included angle between the upward inclined drain hole (11) and the horizontal direction is 10-15 degrees.

7. A rain and sewage separation system for a river, lake or sea slag drain of claim 1, wherein: and underground water quality monitoring points are arranged on the side of the impervious wall facing the river, the lake and the sea.

8. A rain and sewage separation system for a river, lake or sea slag drain of claim 1, wherein: the drainage intercepting ditch (5) spans the drainage pipe (4) through the aqueduct (8), and two ends of the aqueduct (8) are respectively supported by the foundation (7).

9. A rain and sewage separation system for a river, lake or sea slag drain of claim 8 wherein: the foundation (7) is an enlarged foundation, and the enlarged foundation bearing substrate is paved with a crushed stone cushion layer.

10. A rain and sewage separation system for a slag drain in a river, a lake or a sea according to any one of claims 1 to 9, wherein: the two ends of the drain pipe (4) are wrapped with water permeable geotextile.