CN213926328U

CN213926328U - Water collecting and draining system for deep foundation pit

Info

Publication number: CN213926328U
Application number: CN202022784872.5U
Authority: CN
Inventors: 王野; 韩冰; 李洪磊; 谭潜; 李宏文
Original assignee: China Northeast Architectural Design and Research Institute Co Ltd
Current assignee: China Northeast Architectural Design and Research Institute Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-10
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a water collecting and draining system for deep foundation pits, which relates to the technical field of deep foundation pit drainage and comprises a first-stage filter tank, a second-stage filter tank and a third-stage filter tank, wherein the side wall of the first-stage filter tank is provided with a water inlet, the side wall of the third-stage filter tank is provided with a water outlet, the first-stage filter tank and the second-stage filter tank as well as the second-stage filter tank and the third-stage filter tank are communicated through a graded water outlet, and the graded water outlet is sequentially increased in height, the utility model has the structure of the first-stage filter tank, the second-stage filter tank and the third-stage filter tank, adopts a physical sedimentation mode and a height increasing arrangement mode of each-stage water outlet, firstly carries out physical filtration work on sewage pumped from the foundation pits, and then carries out a chemical filtration process on the sewage pumped from the foundation pits by feeding a precipitation reactant from a feed opening for adsorbing impurities in water, and naturally settled.

Description

Water collecting and draining system for deep foundation pit

Technical Field

The utility model relates to a deep basal pit drainage technology field specifically is a drainage system that catchments for deep basal pit.

Background

With the rapid development of the construction industry, a large number of existing construction projects involve excavation projects, and a deep foundation pit refers to a project with an excavation depth of more than 5 meters, or a depth of less than 5 meters, but particularly complex geological conditions, surrounding environments and underground pipelines.

In excavation and the follow-up work progress of foundation ditch, weather is a factor that extremely influences the time limit for a project, especially indicate project engineering construction to rainy season when, because can encounter frequent rainfall, can lead to the inside condition such as large tracts of land ponding of foundation ditch often, current scheme is taken directly to have seted up the drainage well or is taken high-power water pump to carry out the drainage bottom the foundation ditch usually, but at the in-process of pump drainage ponding, because the ponding in the foundation ditch often has the condition of smuggleing earth secretly, sand or rubble, certain influence has been caused to the life-span of water pump, also meet the condition that silt blockked up the suction pipe way often, in addition the sewage that includes a large amount of mud also can't directly discharge in the sewer, can not carry out effectual filtering work to the sewage that comes up of pump drainage bottom the foundation ditch, in discharge process easily, cause the pollution problem to municipal pipe network.

Disclosure of Invention

The utility model provides a not enough to prior art, the utility model provides a drainage system catchments for deep basal pit, including one-level filtering ponds, second grade filtering ponds and tertiary filtering ponds, the one-level filtering ponds lateral wall is provided with the water inlet, tertiary filtering ponds lateral wall is provided with the delivery port, communicate through the hierarchical outlet between one-level filtering ponds and the second grade filtering ponds and between second grade filtering ponds and the tertiary filtering ponds, the hierarchical outlet height scales up in proper order, one-level filtering ponds, second grade filtering ponds and tertiary filtering ponds lower extreme are connected with the sludge pump, the sludge pump below is provided with sludge treatment tank.

Preferably, a discharge port is formed in one side of the sludge treatment tank, and a sludge collecting tank is arranged on one side of the discharge port.

Preferably, the sludge treatment tank is internally connected with a conveyor belt through a transmission shaft.

Preferably, the feed openings are formed above the primary filtering tank, the secondary filtering tank and the tertiary filtering tank.

The utility model discloses following beneficial effect has:

the utility model discloses have the structure of one-level filtering pond, second grade filtering pond and tertiary filtering pond, adopt physics to subside the mode and highly increase progressively the arrangement mode of delivery ports at different levels, at first carried out physics filterable work to the sewage of taking out from the foundation ditch, carried out chemical filtration's process through throwing in the precipitation reactant from the feed opening to the sewage of taking out in the foundation ditch afterwards for adsorb aquatic impurity, and subside naturally. Through the mode of physical precipitation and chemical precipitation, can guarantee the precipitation rate of sewage, set up sludge treatment groove and conveyer belt in the filtering ponds below, can be electronic to discharge away mud, save artificial process, labour saving and time saving.

Drawings

FIG. 1 is a front view of the present invention;

in the figure: 1. a feeding port; 2. a water inlet; 3. a water outlet; 4. a graded water outlet; 5. a sludge pump; 6. a conveyor belt; 7. a discharge port; 8. a drive shaft; 9. a sludge collection tank; 10. a primary filtering tank; 11. a secondary filtering tank; 12. a third stage filter tank; 13. a sludge treatment tank.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Please refer to fig. 1, the utility model provides a drainage system catchments for deep basal pit, including one-level filtering ponds 10, second grade filtering ponds 11 and tertiary filtering ponds 12, one-level filtering ponds 10 lateral wall is provided with water inlet 2, tertiary filtering ponds 12 lateral wall is provided with delivery port 3, communicate through hierarchical outlet 4 between one-level filtering ponds 10 and the second grade filtering ponds 11 and between second grade filtering ponds 11 and the tertiary filtering ponds 12, hierarchical outlet 4 highly scales up in proper order, one-level filtering ponds 10, second grade filtering ponds 11 and tertiary filtering ponds 12 lower extreme are connected with sludge pump 5, sludge pump 5 below is provided with sludge treatment tank 13.

Furthermore, a discharge port 7 is formed in one side of the sludge treatment tank 13, and a sludge collecting tank 9 is arranged on one side of the discharge port 7.

Furthermore, a conveyor 6 is connected to the inside of the sludge treatment tank 13 through a transmission shaft 8.

Furthermore, a feed opening 1 is arranged above the primary filtering tank 10, the secondary filtering tank 11 and the tertiary filtering tank 12.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

Example (b): as shown in figure 1, the utility model discloses to the sewage that the pump drainage came from the foundation ditch in the job site go on and the pump drainage, place this water collecting drainage system for deep foundation ditch at the scene apart from the relatively nearer position of foundation ditch, when meeting large tracts of land rainfall at the scene, can start this system at the very first time of rainfall and pump drainage to ponding that probably exists in the foundation ditch, the sewage that waits to draw up enters into first grade filtering ponds 10, second grade filtering ponds 11 and tertiary filtering ponds 12 through water inlet 2 step by step, operating personnel can throw in aluminium chloride to first grade filtering ponds 10, second grade filtering ponds 11 and tertiary filtering ponds 12 through feed opening 1 afterwards, make aluminium chloride and water fully react, produce flocculent precipitate aluminium hydroxide, aluminium hydroxide has the adsorptivity, can play a large amount of impurity in the absorption, and subside the efficiency to the bottom, simultaneously, through the fractional precipitation of tertiary filtering ponds, the physical sedimentation can also play a role in precipitating the sludge to the bottom, and the sewage after the physical sedimentation and the chemical adsorption can be discharged to a fixed point position through a water outlet.

Treat a large amount of mud sediment to the bottom after, managers can manually change and open the sludge pump 5 that exists in the sedimentation tank bottom, carry out the pump drainage to the mud of sedimentation tank bottom, mud after the pump drainage enters into the sludge treatment tank 13 of sedimentation tank below, there is a conveyor means in the sludge treatment tank 13, the device is along with the mud pump 5 is together started, can in time carry the mud of following the pump drainage of top, guarantee that mud does not further pile up, the mud of 6 conveys of conveyer belt is through the discharge gate 7 of opposite side, get rid of to the mud collecting vat 9 of below, operating personnel can regularly or clear up the mud collecting vat according to the plan.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a drainage system catchments for deep basal pit, includes one-level filtering ponds (10), second grade filtering ponds (11) and tertiary filtering ponds (12), its characterized in that, one-level filtering ponds (10) lateral wall is provided with water inlet (2), tertiary filtering ponds (12) lateral wall is provided with delivery port (3), communicate through hierarchical outlet (4) between one-level filtering ponds (10) and second grade filtering ponds (11) and between second grade filtering ponds (11) and tertiary filtering ponds (12), hierarchical outlet (4) highly increase progressively in proper order, one-level filtering ponds (10), second grade filtering ponds (11) and tertiary filtering ponds (12) lower extreme are connected with sludge pump (5), sludge pump (5) below is provided with sludge treatment groove (13).

2. The water collecting and draining system for the deep foundation pit as claimed in claim 1, wherein a discharge port (7) is formed at one side of the sludge treatment tank (13), and a sludge collecting tank (9) is arranged at one side of the discharge port (7).

3. A water collecting and draining system for deep foundation pit according to claim 2, wherein the sludge treatment tank (13) is connected with a conveyor belt (6) through a transmission shaft (8).

4. The water collecting and draining system for the deep foundation pit as claimed in claim 1, wherein a feed opening (1) is formed above the primary filtering tank (10), the secondary filtering tank (11) and the tertiary filtering tank (12).