Three-stage sedimentation tank system with full-automatic pollution discharge function

Abstract

The invention relates to a three-stage sedimentation tank system capable of fully automatically discharging sewage. The three-stage sedimentation tank system comprises a first sedimentation tank, a second sedimentation tank and a third sedimentation tank which are connected in sequence, the horizontal conveying pipelines are arranged at the bottoms of the sedimentation tanks and are communicated with the interiors of the sedimentation tanks; the horizontal spiral conveyer is arranged in the horizontal conveying pipeline; the vertical conveying pipeline is arranged on the outer side of the third sedimentation tank and is in sealed connection with the horizontal conveying pipeline; the vertical screw conveyor is arranged in the vertical conveying pipeline and is in transmission connection with the horizontal screw conveyor; the self-suction type non-clogging sewage pump is arranged at the top of the third sedimentation tank and is connected with the vertical screw conveyer; the sediment surface height sensing devices are arranged on the inner walls of the sedimentation tanks and are used for detecting the heights of sediment surfaces in the first sedimentation tank, the second sedimentation tank and the third sedimentation tank. According to the invention, the height of the sediment surface in each sedimentation tank can be rapidly detected in time through the arranged sediment surface height sensing device, so that the self-suction type non-clogging sewage pump can be started in time to discharge sediment.

Description

Technical Field

[0001] The invention relates to the technical field of sedimentation tanks at construction sites, in particular to a three-stage sedimentation tank system with full-automatic sewage discharge. Background Art

[0002] Environmental protection is a basic national policy of our country. With the development of society and the continuous improvement of people's living standards, environmental protection awareness is also constantly increasing. Various construction and construction are increasing, and the environmental impact caused by construction is also increasing. Therefore, environmental protection work at the construction site has become very important, especially with the continuous improvement of scientific and technological levels. Under the premise of meeting construction efficiency in construction, the implementation of environmental protection measures can effectively reduce the impact on the environment.

[0003] At present, the three-level sedimentation tanks of the drainage project on the construction site are generally sinking or ground-type three-level sedimentation tanks. For this kind of three-level sedimentation tank, there are the following problems:

[0004] (1) Daily cleaning is cumbersome, requiring the use of a water pump to pump out the water from the sedimentation tank, and then manually using tools to dig out the silt in the sedimentation tank;

[0005] (2) The sedimentation tank is covered for a long time, and the amount of sediment accumulation is not checked regularly. When the accumulation reaches a certain level, it takes a long time to clean it, resulting in the inability to use the mud pool equipment at the car wash station, which may affect the normal construction of the construction site. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects of the prior art and provide a three-stage sedimentation tank system with fully automatic sewage discharge, so as to solve the problems of the existing three-stage sedimentation tank, such as cumbersome daily cleaning, long cleaning time caused by infrequent detection of sediment accumulation, and inability to use the mud pool equipment of the car wash station, thus affecting construction.

[0007] The technical solution to achieve the above purpose is:

[0008] The present invention provides a three-stage sedimentation tank system with full-automatic sewage discharge, comprising:

[0009] A first sedimentation tank, a second sedimentation tank and a third sedimentation tank connected in sequence, wherein the upper parts of the first sedimentation tank and the second sedimentation tank are connected, and the upper parts of the second sedimentation tank and the third sedimentation tank are connected;

[0010] A horizontal conveying pipeline is provided at the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank, and the horizontal conveying pipeline is connected with the inside of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank;

[0011] A horizontal screw conveyor disposed in the horizontal conveying pipeline;

[0012] A vertical conveying pipeline is arranged outside the third sedimentation tank, and the vertical conveying pipeline is sealed and connected to the horizontal conveying pipeline;

[0013] A vertical screw conveyor disposed in the vertical conveying pipeline, wherein the vertical screw conveyor is drivingly connected to the horizontal screw conveyor;

[0014] A self-priming non-clogging sewage pump is arranged at the top of the third sedimentation tank, and the self-priming non-clogging sewage pump is connected to the vertical screw conveyor;

[0015] The sediment surface height sensing device provided on the inner wall of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank is used to detect the height of the sediment surface in the first sedimentation tank, the second sedimentation tank and the third sedimentation tank.

[0016] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that it also includes a controller connected to the self-priming non-clogging sewage pump, and the controller is also connected to the sediment surface height sensing device;

[0017] The controller receives the height of the sediment surface detected by the sediment surface height sensing device, and controls the self-priming non-clogging sewage pump to start when the height of the sediment surface is higher than an upper limit value.

[0018] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that the self-priming non-clogging sewage pump is connected to an external discharge pipe, and the external discharge pipe is connected to a sediment collection container.

[0019] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that an opening is provided in the middle of the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank, and the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank is sloped toward the opening;

[0020] The horizontal conveying pipeline is arranged corresponding to the opening, and the horizontal conveying pipeline is connected with the interior of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank through the opening.

[0021] A further improvement of the three-stage sedimentation tank system for fully automatic sewage discharge of the present invention is that a first communication hole is provided on the partition between the first sedimentation tank and the second sedimentation tank, and a first filter screen is provided at the first communication hole;

[0022] A second communication hole is provided on the partition between the second sedimentation tank and the third sedimentation tank, and a second filter screen is provided at the second communication hole.

[0023] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that the sides of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are provided with water inlets, and flanges for connection are provided at the water inlets.

[0024] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that the bottoms of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are provided with supporting legs.

[0025] A further improvement of the three-stage sedimentation tank system for fully automatic sewage discharge of the present invention is that a bracket is provided on the top of the third sedimentation tank;

[0026] The self-priming non-clogging sewage pump is installed on the bracket.

[0027] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that the vertical screw conveyor is connected to the horizontal screw conveyor through a bevel gear transmission.

[0028] A further improvement of the fully automatic sewage discharge three-stage sedimentation tank system of the present invention is that the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are formed by welding steel plates.

[0029] The beneficial effects of the three-stage sedimentation tank system with fully automatic sewage discharge of the present invention are:

[0030] The fully automatic sewage discharge three-stage sedimentation tank system of the present invention is equipped with a self-priming non-clogging sewage pump to drive the vertical screw conveyor to rotate, and then drives the horizontal screw conveyor to rotate, so as to discharge the silt at the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank to the outside, which can improve the discharge efficiency of the silt settled in the sedimentation tank.

[0031] The fully automatic sewage discharge three-stage sedimentation tank system of the present invention can timely and quickly detect the height of the sediment surface in each sedimentation tank through the provided sediment surface height sensing device, so that the accumulation amount of sediment can be known in time, and the self-priming non-clogging sewage pump can be started in time to discharge the sediment.

[0032] The fully automatic sewage discharge three-stage sedimentation tank system of the present invention can achieve a fully automatic control effect by setting a controller. After the sediment surface height sensing device detects the sediment surface in the sedimentation tank, the controller can automatically compare and determine whether the sediment surface has reached an upper limit value. If the upper limit value is reached, the self-priming non-clogging sewage pump is controlled to start, and the self-priming non-clogging sewage pump is automatically stopped after the sediment surface is lower than a certain height (such as a lower limit value).

[0033] The fully automatic sewage discharge three-stage sedimentation tank system of the present invention is easy to install and disassemble, can be recycled for many times, is convenient for secondary transportation and turnover, is simple to manufacture, easy to operate, and has a wide range of applications.

[0034] The fully automatic sewage discharge three-stage sedimentation tank system of the present invention has simple operation procedures and can be used at any time only after pouring the concrete cushion layer. Since it is made by integral welding, the overall frame is strong and firm, with high turnover efficiency, and a large amount of manpower and material resources can be saved during new construction and demolition. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the three-stage sedimentation tank system with full-automatic sewage discharge of the present invention.

[0036] Figure 2 It is a cross-sectional view of the three-stage sedimentation tank system with fully automatic sewage discharge of the present invention.

[0037] Figure 3 It is a plan view of the three-stage sedimentation tank system with fully automatic sewage discharge of the present invention.

[0038] Figure 4 for Figure 2 A partial enlarged schematic diagram of the connection between the vertical screw conveyor and the horizontal screw conveyor. DETAILED DESCRIPTION

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] See also Figure 1 The present invention provides a three-stage sedimentation tank system with full-automatic sewage discharge, which aims to realize automatic discharge of sediment in the sedimentation tank. The system of the present invention can detect the height of the sediment surface in the sedimentation tank by setting a sediment surface height detection device. When the height of the sediment surface reaches the upper limit value, the self-priming non-clogging sewage pump is started to discharge the sediment in the sedimentation tank until the sediment surface height in the sedimentation tank reaches the lower limit value, forming an automatic induction closed-loop system of the sedimentation tank. The three-stage sedimentation tank system with full-automatic sewage discharge of the present invention is described below in conjunction with the accompanying drawings.

[0041] See also Figure 1 , showing a three-dimensional structural schematic diagram of the three-stage sedimentation tank system of the present invention with fully automatic sewage discharge. Figure 2 , showing a cross-sectional view of the three-stage sedimentation tank system of the present invention with fully automatic sewage discharge. Figure 1 and Figure 2 , the three-stage sedimentation tank system with fully automatic sewage discharge of the present invention is described.

[0042] like Figure 1 and Figure 2As shown, the three-stage sedimentation tank system for fully automatic sewage discharge of the present invention includes a first sedimentation tank 21, a second sedimentation tank 22, a third sedimentation tank 23, a horizontal conveying pipeline 24, a horizontal screw conveyor 25, a vertical conveying pipeline 26, a vertical screw conveyor 27, a self-priming non-clogging sewage pump 28 and a mud surface height sensing device 29; wherein the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 are connected in sequence, the first sedimentation tank 21 and the upper part of the second sedimentation tank 22 are connected, and the upper part of the second sedimentation tank 22 and the third sedimentation tank 23 are connected. A horizontal conveying pipeline 24 is arranged at the bottom of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23, and the horizontal conveying pipeline 24 is connected to the inside of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23; a horizontal screw conveyor 25 is arranged in the horizontal conveying pipeline 24; a vertical conveying pipeline 26 is arranged outside the third sedimentation tank 23, and the vertical conveying pipeline 26 is sealed and connected to the horizontal conveying pipeline 24; a vertical screw conveyor 27 is arranged in the vertical conveying pipeline 26, and the vertical screw conveyor 27 is transmission-connected to the horizontal screw conveyor 25; a self-priming non-clogging sewage pump 28 is arranged in the third sedimentation tank 2 3, the self-priming non-clogging sewage pump 28 is connected to the vertical screw conveyor 27, which can drive the vertical screw conveyor 27 to rotate, and then the vertical screw conveyor 27 drives the horizontal screw conveyor 25 to rotate, and during the rotation process, the silt at the bottom of each sedimentation tank can be pushed to the self-priming non-clogging sewage pump 28 to discharge the silt; the silt surface height sensing device 29 is arranged on the inner wall of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23, and the silt surface height sensing device 29 is used to detect the height of the silt surface in the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23.

[0043] The present invention detects the height of the sediment deposition in the corresponding sedimentation tank by setting up a sediment surface height sensing device 29. When the height of the sediment surface reaches the upper limit, the self-priming non-clogging sewage pump 28 can be started to automatically discharge the sediment, thereby solving the problems of cumbersome manual sediment removal and excessive sediment accumulation in the sedimentation tank, which leads to a long cleaning time.

[0044] In a specific embodiment of the present invention, the system of the present invention also includes a controller connected to the control of the self-priming non-clogging sewage pump 28, and the controller is also connected to the mud surface height sensing device 29; the controller receives the height of the mud surface detected by the mud surface height sensing device 29, and when the height of the mud surface is higher than the upper limit value, controls the self-priming non-clogging sewage pump 28 to start.

[0045] Preferably, the controller may be disposed close to the self-priming non-clogging sewage pump 28 , and the controller may be disposed in a control cabinet 30 .

[0046] In a preferred embodiment, the sediment surface height sensing device 29 includes a high-level pressure sensor and a low-level pressure sensor. When the sediment in the corresponding sedimentation tank is deposited to the setting height of the low-level pressure sensor, the low-level pressure sensor is triggered to form a sensing signal, indicating that the sediment surface has deposited to the lower limit value at this time. When the sediment is deposited to the setting height of the high-level pressure sensor, the high-level pressure sensor is triggered to form a sensing signal, indicating that the sediment surface has deposited to the upper limit value at this time. When the high-level pressure sensor forms a sensing signal, the controller can control the self-priming non-clogging sewage pump 28 to start and automatically discharge mud. When the height of the sediment surface is lower than the setting height of the low-level pressure sensor, it means that the sediment surface height in the sedimentation tank is lower than the lower limit value at this time. The controller can control the self-priming non-clogging sewage pump 28 to shut down and stop discharging mud.

[0047] In a specific embodiment of the present invention, Figure 1 and Figure 3 As shown, the self-priming non-clogging sewage pump 28 is connected to an external discharge pipe 281, and the external discharge pipe 281 is connected to a sediment collection container. The sediment collection container is used to collect the sediment discharged by the self-priming non-clogging sewage pump 28, so as to facilitate the external transportation of the sediment.

[0048] Furthermore, if Figure 2 As shown, a bracket 231 is provided on the top of the third sedimentation tank 23; a self-priming non-clogging sewage pump 28 is installed on the bracket.

[0049] The sediment container is arranged near the third sedimentation tank 23, and the sediment container is placed on the ground and its mouth corresponds to the external discharge pipe 281, so as to collect the discharged sediment. A lifting ring is arranged on the top of the sediment container, so as to facilitate the lifting and transportation of the sediment container.

[0050] In a specific embodiment of the present invention, Figure 3 As shown, openings 211, 221, 232 are provided in the middle of the bottom of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23, and the bottoms of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 are sloped toward the openings 211, 221, 232; the horizontal conveying pipes 24 are provided corresponding to the openings 211, 221, 232, and the horizontal conveying pipes 24 are connected with the interior of the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 through the openings 211, 221, 232.

[0051] By sloping the bottom of each sedimentation tank toward the opening, the deposited silt can be gathered toward the opening, so that the horizontal screw conveyor 25 can discharge the silt in each sedimentation tank. Preferably, the bottom of each sedimentation tank is set with a slope of 5% toward the opening, so that the opening is a mud collection area.

[0052] In a specific embodiment of the present invention, Figure 1 As shown, a first connecting hole is provided on the partition between the first sedimentation tank 21 and the second sedimentation tank 22, and a first filter screen 31 is provided at the first connecting hole; a second connecting hole is provided on the partition between the second sedimentation tank 22 and the third sedimentation tank 23, and a second filter screen 32 is provided at the second connecting hole.

[0053] The filtration of silt is achieved by the first filter 31 and the second filter 32. When the three-stage sedimentation tank of the present invention is in use, sewage with silt, such as sewage generated by equipment such as a car wash station, can be input into a sedimentation tank, and then infiltrated into the corresponding sedimentation tank through the first filter 31 and the second filter 32. Preferably, the sewage can be passed into the first sedimentation tank 21 for sedimentation. When the water level in the first sedimentation tank 21 reaches the position of the first connecting hole, the water in the first sedimentation tank 21 can enter the second sedimentation tank 22 through the filtration of the first filter 31. When the water level in the second sedimentation tank 22 reaches the position of the second connecting hole, the water in the second sedimentation tank 22 can enter the third sedimentation tank 23 through the filtration of the second filter 32, thereby achieving a multi-stage sedimentation effect.

[0054] Furthermore, if Figure 1 and Figure 3 As shown, the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 are provided with water inlets on their sides, and the water inlets are provided with flanges 33 for connection. The flanges 33 can be connected to the sewage drainage system, for example, the flanges 33 can be connected to the drainage system of equipment such as a car wash station, so as to discharge the sewage into the corresponding sedimentation tanks.

[0055] In a specific embodiment of the present invention, Figure 2 and Figure 4 As shown, the vertical screw conveyor 27 is connected to the horizontal screw conveyor 25 through a bevel gear 34. When the vertical screw conveyor 27 rotates, the bevel gear 34 can drive the horizontal screw conveyor 25 to rotate together.

[0056] In a specific embodiment of the present invention, Figure 1 As shown, the first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 are formed by welding steel plates.

[0057] The first sedimentation tank 21, the second sedimentation tank 22 and the third sedimentation tank 23 are preferably box-shaped structures with open tops.

[0058] Support legs 212 are provided at the bottom of the first sedimentation tank 21 , the second sedimentation tank 22 and the third sedimentation tank 23 , and the horizontal conveying pipe 24 at the bottom can be lifted off the ground by the provided support legs 212 .

[0059] The working principle of the three-stage sedimentation tank system of the present invention is as follows:

[0060] The three-stage sedimentation tank system for fully automatic sewage discharge of the present invention forms a set of closed-loop sensing control, and the height of the sediment in each sedimentation tank is detected by a sediment surface height sensing device. The sediment surface height sensing device is a pressure sensor. Two pressure sensors are arranged in each sedimentation tank, one at a high position and the other at a low position. By triggering the high and low pressure sensors, it can be known whether the height of the sediment surface reaches the lower limit value and the upper limit value. When the sediment surface reaches the upper limit value (that is, the high-position pressure sensor forms a sensing signal), the controller controls the self-priming non-clogging sewage pump 28 to start and discharge the mud. The self-priming non-clogging sewage discharge pump 28 is used to discharge the mud. The pump 28 drives the vertical screw conveyor 27 to rotate, and the vertical screw conveyor 27 drives the horizontal screw conveyor 25 to rotate through the bevel gear 34. The horizontal screw conveyor 25 pushes the silt at the bottom of each sedimentation tank toward the vertical bolt conveyor 27, and then the vertical bolt conveyor 27 pushes the silt upward. Finally, the silt is sucked out by the self-priming non-clogging sewage pump 28 and discharged into the silt collection container through the external discharge pipe 281. When the low-level pressure sensor does not form an induction signal, the surface silt surface at this time is lower than the lower limit value, and the controller can control the self-priming non-clogging sewage pump 28 to stop running.

[0061] The setting positions of the high-level pressure sensor and the low-level pressure sensor can be manually adjusted on-site to achieve reasonable control of sludge discharge, so that the silt height in the sedimentation tank is in a controllable state, ensuring the stable operation of the system.

[0062] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A three-stage sedimentation tank system with fully automatic sewage discharge, characterized in that: include: A first sedimentation tank, a second sedimentation tank and a third sedimentation tank connected in sequence, wherein the upper parts of the first sedimentation tank and the second sedimentation tank are connected, and the upper parts of the second sedimentation tank and the third sedimentation tank are connected; A horizontal conveying pipeline is provided at the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank, and the horizontal conveying pipeline is connected with the inside of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank; A horizontal screw conveyor disposed in the horizontal conveying pipeline; A vertical conveying pipeline is arranged outside the third sedimentation tank, and the vertical conveying pipeline is sealed and connected to the horizontal conveying pipeline; A vertical screw conveyor disposed in the vertical conveying pipeline, wherein the vertical screw conveyor is drivingly connected to the horizontal screw conveyor; A self-priming non-clogging sewage pump is arranged at the top of the third sedimentation tank, and the self-priming non-clogging sewage pump is connected to the vertical screw conveyor; The sediment surface height sensing device provided on the inner wall of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank is used to detect the height of the sediment surface in the first sedimentation tank, the second sedimentation tank and the third sedimentation tank.

2. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: It also includes a controller connected to the self-priming non-clogging sewage pump, and the controller is also connected to the mud and sand surface height sensing device; The controller receives the height of the sediment surface detected by the sediment surface height sensing device, and controls the self-priming non-clogging sewage pump to start when the height of the sediment surface is higher than an upper limit value.

3. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1 is characterized in that: The self-priming non-clogging sewage pump is connected with an external discharge pipe, and the external discharge pipe is connected with a sediment collection container.

4. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: An opening is provided in the middle of the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank, and the bottom of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank is sloped toward the opening; The horizontal conveying pipeline is arranged corresponding to the opening, and the horizontal conveying pipeline is connected with the interior of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank through the opening.

5. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: A first communication hole is provided on the partition between the first sedimentation tank and the second sedimentation tank, and a first filter screen is provided at the first communication hole; A second communication hole is provided on the partition between the second sedimentation tank and the third sedimentation tank, and a second filter screen is provided at the second communication hole.

6. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: The sides of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are provided with water inlets, and flanges for connection are provided at the water inlets.

7. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: The bottoms of the first sedimentation tank, the second sedimentation tank and the third sedimentation tank are provided with supporting legs.

8. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: A support is provided on the top of the third sedimentation tank; The self-priming non-clogging sewage pump is installed on the bracket.

9. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: The vertical screw conveyor is connected to the horizontal screw conveyor through bevel gear transmission.

10. The fully automatic sewage discharge three-stage sedimentation tank system according to claim 1, characterized in that: The first sedimentation tank, the second sedimentation tank and the third sedimentation tank are formed by welding steel plates.

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