CN218653396U - A high-efficient sedimentation tank for engineering scene - Google Patents

Abstract

The application discloses a high-efficient sedimentation tank for engineering scene. The efficient sedimentation tank comprises a tank body, wherein the tank body is sequentially provided with a sedimentation tank, a separation tank and a sludge collection tank from left to right; the top of the sedimentation tank is provided with a vertical stirrer, the bottom of the sedimentation tank is spiral, a sludge discharge pipe and a fine grain filter plate are arranged in the sedimentation tank, and the side wall of the sedimentation tank is provided with a sewage collecting plate; the separation tank is internally provided with a cylindrical screen, a decanter and a water outlet. The utility model adopts the measures of the spiral structure, the sewage collecting plate, the fine grain filter plate and the like of the sedimentation tank, so that the sludge is collected to the bottom of the sedimentation tank under the action of the secondary flow, the sedimentation speed is accelerated under the condition of not increasing the area and the sedimentation time of the sedimentation tank, and the purification effect is improved; through setting up the separator, with mud and clear water separation in the sewage pipes, the clear water returns the sedimentation tank, and mud is arranged the mud collecting pit in, has realized mechanized operation from this, reduce cost and loss, extensively is applicable to the sedimentation tank of engineering scene.

Description

A high-efficient sedimentation tank for engineering scene

Technical Field

The application relates to the technical field of underground building construction, in particular to a high-efficiency sedimentation tank for an engineering site.

Background

The sedimentation tank is a structure for removing suspended matters in water by using sedimentation and is a facility for purifying water. The method is characterized in that suspended matters in water are removed by means of the gravity settling effect of particles or flocs in the water, and the water flows in from one end of a pool, slowly flows along the length direction and flows out from the other end of the pool. The sedimentation effect of the sedimentation tank is influenced by the reaction effect and is related to factors such as horizontal flow velocity in the tank, sedimentation time, sedimentation velocity of raw water coagulated particles, arrangement form of an inlet and an outlet, sludge discharge effect and the like. At present, forms such as a horizontal flow sedimentation tank, a vertical flow sedimentation tank, a radial flow sedimentation tank and the like are mostly adopted, but when the water quantity of a construction site is large, the sedimentation effect of the sedimentation tank is poor, sludge cannot be fully precipitated, and the environmental pollution is large.

In 1926, einstein published a short paper explaining the sinuous nature of the river and proposed the well-known "cup paradox". When agitating a liquid containing impurities, the friction between the fluid and the walls of the tank will cause a reduction in the centrifugal flow to the walls of the tank, the centrifugal force also decreasing from the top to the bottom of the tank, which results in a decrease in velocity near the walls of the tank, while the bottom will have a spiral inward velocity, the downward velocity near the walls of the tank will enhance the settling of the particles, and the inward velocity of the bottom will cause the particles to collect in the centre of the bottom of the vessel. Therefore, under the combined action of the centrifugal force and the friction force, the solid particles are finally gathered at the center of the bottom of the container, and then the solid-liquid separation is realized. The principle is used for the design of the sedimentation tank, so that the sedimentation effect can be obviously improved under the condition of not increasing the construction area and the sedimentation time of the sedimentation tank, and the sedimentation treatment problem is effectively solved.

Disclosure of Invention

In view of this, the application provides an efficient sedimentation tank for engineering site, can be under the condition that does not increase sedimentation tank construction area and sedimentation time, show improvement sedimentation effect.

An efficient sedimentation tank for an engineering site is characterized by comprising a tank body, wherein the tank body is sequentially provided with a sedimentation tank, a separation tank and a sludge collection tank which are communicated with each other along a water flow direction;

a stirrer in the vertical direction is arranged in the center of the top of the sedimentation tank, the bottom of the sedimentation tank is arranged in a spiral shape, and a sludge discharge pipe is arranged in the center of the bottom of the sedimentation tank; the stirrer is provided with a disc base and a plurality of stirring pipes; a sewage collecting plate is arranged on the side wall of the sedimentation tank; a water inlet and a water outlet are formed in the wall surface of the sedimentation tank perpendicular to the water flow direction; the sedimentation tank is provided with a fine particle filter plate;

a group of columnar screens are arranged in the center of the separation tank, and the screens divide the separation tank into an internal sludge area and an external clear water area; the separation tank is provided with a decanter and a water outlet.

Optionally, the sedimentation tank is a fractional sedimentation tank, a previous sedimentation tank of the fractional sedimentation tank along the water flow direction is higher than a subsequent sedimentation tank, and a water outlet of the previous sedimentation tank is higher than the wall of the subsequent sedimentation tank.

Optionally, the dirt collecting plate is arranged on the side wall of the water inlet along the water flow direction, and a plate body of the dirt collecting plate and the side wall are arranged in a 45-degree inclined countercurrent mode.

Optionally, the dirt collecting plate is fixedly connected with the sedimentation tank through a hinge structure.

Optionally, the water inlet and the water outlet are respectively arranged on two sides of the pool wall, the height of the water outlet is lower than that of the water inlet, and a flowmeter is arranged at the position of the water inlet.

Optionally, the fine particle filter plate is arranged at the water outlet, a plate body of the fine particle filter plate is obliquely arranged with the lower bottom surface of the sedimentation tank, and the plate body is fixedly connected with the sedimentation tank through a hinge structure.

Optionally, the sedimentation tank is connected with the separation tank through a sludge discharge pipe, and the sludge is pumped to the internal sludge area through a sewage pump.

Optionally, the outlet is communicated with the sedimentation tank, and the clean water in the external clean water area flows back into the sedimentation tank through a pipeline.

Optionally, a section of notch is reserved in the side wall of the separation tank, and a tempered glass plate is arranged in the notch.

Optionally, the screen is a 50-100 mesh screen.

Compared with the prior art, the method has the following beneficial effects:

1. the utility model has the advantages that the stirring of the stirrer and the setting of the bottom of the sedimentation tank are spiral, sludge is gathered to the center of the bottom of the sedimentation tank under the action of the secondary flow, the sedimentation speed is accelerated under the condition of not increasing the area and the sedimentation time of the sedimentation tank, and the purification effect is improved; the sewage discharge pipe is arranged at the center of the bottom of the sedimentation tank, so that the collected sludge is quickly discharged out of the sedimentation tank, manual operation is reduced, and the sewage discharge efficiency is obviously improved;

2. the sewage collecting plate is reversely arranged on the side wall of the sedimentation tank along the water flow, and the fine grain filter plate is arranged at the water outlet, so that impurity particles in the water flow at the water outlet are obviously reduced, when the water flow is large, the impurity is fully degraded, the sludge and clear water separation effect is improved, and in addition, the sewage collecting plate and the fine grain filter plate are fixed through the hinge structure, so that the disassembly and the cleaning are convenient;

3. the separator is arranged to separate sludge and clear water in the sewage pipe, the clear water returns to the sedimentation tank, and the sludge is discharged into the sludge collection tank; meanwhile, a glass notch is reserved on the side wall of the separator, so that the sludge deposition condition can be checked in real time, and the sludge treatment efficiency is improved.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of a circular sedimentation tank provided in the embodiment of the present application;

FIG. 2 is a schematic view of the overall structure of a rectangular sedimentation tank provided in the embodiment of the present application;

fig. 3 is a schematic diagram of a sewage collecting plate structure provided in an embodiment of the present application;

FIG. 4 is a spiral schematic view of the bottom of a sedimentation tank provided in an embodiment of the present application;

FIG. 5 is a schematic diagram of a grading connection of a sedimentation tank provided in an embodiment of the present application;

in the figure: 1-a pool body; 2-a stirrer; 11-a sedimentation tank; 12-a separation tank; 13-a sludge collection tank; 21-a disc base; 22-a stirring pipe; 23-a motor; 111-a mud pipe; 112-a dirt collecting plate; 113-a water inlet; 114-a water outlet; 115-fine particle filter plate; 116-a flow meter; 117-sewage pump; 118-a flow regulating valve; 119-a side wall; 121-screen mesh; 122-internal sludge zone; -an outer clear water zone 123; 124-a decanter; 125-a water outlet; 126-notches.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1-5, the utility model provides a high-efficiency sedimentation tank for engineering site, which comprises a tank body 1, wherein the tank body 1 is provided with a sedimentation tank 11, a separation tank 12 and a sludge collection tank 13 which are communicated with each other from left to right; it should be noted that the communication here means that the sewage in the sedimentation tank 11 can be introduced into the separation tank 12, and the sludge in the separation tank 12 can be introduced into the sludge collection tank 13. In addition, a vertical stirrer 2 is arranged at the center of the top of the sedimentation tank 11, the bottom of the sedimentation tank 11 is spiral, and a sludge discharge pipe 111 is arranged at the center of the bottom of the sedimentation tank 11; the stirrer 2 is provided with a disc base 21 and a plurality of stirring pipes 22, and sludge is gathered at the sludge discharge pipe 111 under the rotation action of the stirring pipes; meanwhile, the side wall of the sedimentation tank 11 is provided with a sewage collecting plate 112, so that when the flow velocity is high, the buffer effect on water flow can be realized, and the impurity particles in sewage can be effectively reduced; the sedimentation tank 11 is provided with a water inlet 113 and a water outlet 114 on the wall surface perpendicular to the water flow direction; the sedimentation tank 11 is provided with a fine particle filter plate 115 for screening and blocking insufficiently settled magazine particles so as to improve the water quality at the water outlet; a group of cylindrical screens 121 are arranged in the center of the separation tank 12, and the screens 121 divide the separation tank 12 into an internal sludge area 122 and an external clear water area 123; the separation tank 12 is provided with a decanter 124 and a drain 125, the decanter 124 discharging treated fresh water from the drain 125.

In this embodiment, the sedimentation tank 11 is a fractional sedimentation tank, and the number of fractions is set according to the water amount of the flow meter 116.

In this embodiment, the preceding sedimentation tank of hierarchical sedimentation tank along rivers direction is higher than the next sedimentation tank, and the delivery port of preceding sedimentation tank is higher than the pool wall of the next sedimentation tank, improves the sediment filter effect of sedimentation tank.

In the embodiment, the sedimentation tank 11 is circular or rectangular, and is comprehensively selected by combining factors such as the site use of engineering, water flow, construction process and the like, the circular sedimentation tank can fully play the secondary flow sedimentation effect when the water amount is large, the rectangular sedimentation tank is convenient to construct and operate, and the circular sedimentation tank is preferably selected under the condition of permission.

In this embodiment, the stirrer 2 drives the disc base 21 through the motor 23 to further drive the stirring pipe 22 to rotate, and the rotating speed is adjusted according to the sewage concentration and the water flow.

In this embodiment, dirty board 112 sets up on the lateral wall 119 of water inlet 113 department along the rivers direction, and its plate body is forty-five degrees slopes to arrange against current with lateral wall 119, can effectively degrade the impurity granule in the sewage, and the agitator 2 of being convenient for is subsided the processing once more.

In this embodiment, the dirt collecting plate 112 is fixedly connected to the sedimentation tank 11 by a hinge structure, and the plate surface is made of an alloy material that is not easy to adsorb scum.

In this embodiment, the water inlet 113 and the water outlet 114 are respectively disposed on two sides of the tank wall, the height of the water outlet 114 is lower than that of the water inlet 113, the water inlet and the water outlet are located on different flow lines to improve the settling reaction efficiency, and the water inlet is provided with the flow meter 116 to facilitate real-time monitoring of water flow to adjust the separator 12.

In this embodiment, the fine particle filter plate 115 is disposed at the water outlet 114, and a plate body thereof is disposed to incline eighty degrees from the bottom surface of the sedimentation tank 11, and the plate body is fixedly connected to the bottom surface of the sedimentation tank 11 through a hinge structure, so as to perform secondary screening sedimentation on sewage to improve the purification effect.

In this embodiment, the sedimentation tank 11 is connected to the separation tank 12 through a sludge discharge pipe 111, and the sludge is pumped to the inner sludge area 122 by the sewage pump 117, and the sludge in the sedimentation tank 11 is continuously accumulated at the bottom center by transferring the sludge to the separation tank 12.

In this embodiment, the mud pipe 111 is provided with a flow regulating valve 118, and the opening and closing degree of the flow regulating valve is regulated according to the indication of the flow meter 116.

In this embodiment, the water outlet 125 is communicated with the sedimentation tank 11, and the purified water in the external clean water area 123 flows back to the sedimentation tank 11 through a pipeline, so that the purified water in the separation tank 12 can be recycled.

In this embodiment, a section of notch 126 is reserved on the side wall of the separation tank 12, a toughened glass plate is arranged in the notch 126, and therefore constructors can observe the sludge deposition condition in the separation tank in real time so as to process sludge in time.

In this embodiment, the screen 121 is a 50-100 mesh screen, which can rapidly screen fine particles of impurities.

In this embodiment, the separation tank 12 is connected to a sludge collection tank 13, and the sludge in the internal sludge area 122 is pumped to the sludge collection tank 13 by a sewage pump 118.

The utility model discloses a theory of operation: construction sewage enters the sedimentation tank 11 through the water inlet 113, and the sewage collecting plate 112 performs primary buffering sedimentation on the sewage, so that the sedimentation effect of the stirrer 2 can be fully exerted subsequently; then, under the combined action of the helix of the bottom of the sedimentation tank 11 and the rotation of the stirring pipe 22, sludge in the sewage is gathered at the center of the bottom of the sedimentation tank 11 under the action of centrifugal force and friction force, clear water passes through the fine particle filter plate 115 and flows out from the water outlet 114 to the next sedimentation tank 11, and impurity particles are blocked at the inner side of the fine particle filter plate 115 to be continuously stirred; the sewage discharge pipe 111 conveys the sludge at the center of the bottom to the internal sludge area 122 under the action of the sewage discharge pump 117, and the flow regulating valve 118 is regulated according to the reading of the flowmeter 116 to ensure that the sludge can be completely and quickly conveyed to the separator 12; the sludge is screened by the cylindrical screen 121, clear water flows into the outer clear water area 123, then flows back to the sedimentation tank 11 from the water outlet 125 under the action of the decanter 124, the sludge in the inner sludge area 122 is conveyed to the sludge collection tank 13 through the sewage pump 118, and the sludge sedimentation can be observed in real time through a toughened glass plate arranged in the notch 126.

The above description is only for the preferred embodiment, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered by the present disclosure.

Claims (10)

1. The efficient sedimentation tank for the engineering site is characterized by comprising a tank body (1), wherein the tank body (1) is sequentially provided with a sedimentation tank (11), a separation tank (12) and a sludge collection tank (13) which are communicated with each other along the water flow direction;

a stirrer (2) in the vertical direction is arranged in the center of the top of the sedimentation tank (11), the bottom of the sedimentation tank (11) is spiral, and a sludge discharge pipe (111) is arranged in the center of the bottom of the sedimentation tank (11); the stirrer (2) is provided with a disc base (21) and a plurality of stirring pipes (22); a sewage collecting plate (112) is arranged on the side wall of the sedimentation tank (11); a water inlet (113) and a water outlet (114) are formed in the wall surface of the sedimentation tank (11) perpendicular to the water flow direction; the sedimentation tank (11) is provided with a fine particle filter plate (115);

a group of columnar screens (121) is arranged at the center of the separation tank (12), and the screens (121) divide the separation tank (12) into an inner sludge area (122) and an outer clear water area (123); the separation tank (12) is provided with a decanter (124) and a drain (125).

2. The efficient sedimentation tank according to claim 1, wherein the sedimentation tank (11) is a fractional sedimentation tank, the previous sedimentation tank of the fractional sedimentation tank (11) is higher than the next sedimentation tank along the water flow direction, and the water outlet of the previous sedimentation tank is higher than the wall of the next sedimentation tank.

3. The high-efficiency sedimentation tank as claimed in claim 1, wherein the dirt collecting plate (112) is provided on a side wall (119) at the water inlet (113) in the water flow direction, and the plate body and the side wall (119) are arranged in a 45-degree inclined countercurrent manner.

4. An efficient sedimentation tank as claimed in claim 1, wherein the dirt collecting plate (112) is fixedly connected with the sedimentation tank (11) by a hinge structure.

5. The high-efficiency sedimentation tank as claimed in claim 1, wherein the water inlet (113) and the water outlet (114) are respectively arranged at two sides of the tank wall, the water outlet (114) is lower than the water inlet (113), and a flow meter (116) is arranged at the water inlet (113).

6. The high-efficiency sedimentation tank as claimed in claim 1, wherein the fine particle filter plate (115) is arranged at the water outlet (114), and a plate body thereof is obliquely arranged with respect to the lower bottom surface of the sedimentation tank (11), and is fixedly connected with the sedimentation tank (11) by a hinge structure.

7. An efficient sedimentation tank according to claim 1, characterized in that the sedimentation tank (11) is connected to the separation tank (12) by a sludge discharge pipe (111), and that the sludge is pumped by a sewage pump (117) to the inner sludge zone (122).

8. The high-efficiency sedimentation tank as claimed in claim 1, wherein the water outlet (125) is in communication with the sedimentation tank (11), and the clean water in the outer clean water zone (123) is returned to the sedimentation tank (11) through a pipeline.

9. The high-efficiency sedimentation tank as claimed in claim 1, wherein a notch (126) is reserved in the side wall of the separation tank (12), and a tempered glass plate is arranged in the notch (126).

10. The high efficiency settling pond according to claim 1, wherein the screen (121) is a 50-100 mesh screen.

Images