Wastewater precipitation device

Abstract

The utility model provides a wastewater precipitation device. The wastewater precipitation device comprises a wastewater tank and a mud guard arranged in the wastewater tank, a water inlet and a water outlet are respectively formed in two ends of the wastewater tank in the length direction; one side end of the mud guard is fixedly connected with the inner side wall of the waste water tank, and a gap is formed between the other side end of the mud guard and the inner side wall of the waste water tank; the plurality of mudguards are arranged at intervals in the length direction of the wastewater tank so as to divide the interior of the wastewater tank into a baffling channel communicated with the water inlet and the water outlet; the upper end of the mud guard is flush with the upper end of the waste water tank, a gap is formed between the lower end of the mud guard and the bottom of the waste water tank, and the height of the mud guard is gradually increased in the water flow direction in the waste water tank. An existing waste water tank is modified, and a plurality of mud guards are fixedly installed in the waste water tank; and then the water outlet in the wastewater tank is communicated with the main sedimentation tank, so that secondary sedimentation is carried out.

Description

Technical Field

[0001] This utility model relates to the field of wastewater sedimentation technology, specifically to a wastewater sedimentation device. Background Technology

[0002] In the treatment of electroplating wastewater, sedimentation tanks are often used. Sedimentation tanks are structures that use sedimentation to remove suspended solids from water, and are widely used in wastewater treatment. Heavy metals such as chromium, nickel, and copper contained in electroplating wastewater need to be precipitated using chemical methods. Many wastewater treatments even require multi-stage sedimentation to meet standards.

[0003] However, wastewater treatment plants that have been in operation for a long time are often designed with only one stage of sedimentation at the beginning of their design. That is, they are designed with only one sedimentation tank. Electroplating wastewater is passed into the sedimentation tank through a wastewater tank to achieve primary sedimentation of the electroplating wastewater. As a result, the sedimentation effect is poor and can no longer meet the new discharge requirements. Utility Model Content

[0004] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by this utility model is that: at the initial design stage, only one stage of sedimentation is often designed, resulting in poor sedimentation effect, which can no longer meet the new emission requirements.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wastewater sedimentation device, comprising:

[0006] Wastewater tank, wherein an inlet and an outlet are respectively provided at both ends along the length of the wastewater tank; and

[0007] Mudslides are installed inside the wastewater tank. One end of the mudslide is fixedly connected to the inner wall of the wastewater tank, and the other end of the mudslide has a gap with the inner wall of the wastewater tank. Multiple mudslides are spaced apart along the length of the wastewater tank to divide the wastewater tank into a baffle channel connecting the inlet and outlet. The upper end of the mudslide is flush with the upper end of the wastewater tank, and the lower end of the mudslide has a gap with the bottom of the wastewater tank. The height of the mudslide increases gradually along the water flow direction in the wastewater tank.

[0008] Preferably, a first filter plate is installed at the water inlet.

[0009] Preferably, a second filter plate is provided at the water outlet.

[0010] Preferably, a third filter plate is provided in the gap between the inner walls of the mudguard wastewater tank.

[0011] Preferably, the bottom of the wastewater tank is provided with a slope.

[0012] Preferably, there are two symmetrically arranged ramps.

[0013] Preferably, a sludge outlet is provided between the two slopes.

[0014] Compared with the prior art, the present invention has at least the following advantages:

[0015] 1. In this utility model, the existing wastewater tank is modified by fixing multiple baffles inside the wastewater tank. These baffles divide the wastewater tank into a reciprocating, twisting flow channel, increasing the flow path of the wastewater. By setting the multiple baffles to progressively increasing lengths, the sludge blocked by the baffles moves downwards. When it reaches the lower gap, it is pushed by the wastewater and collides with the next baffle, which in turn drives the sludge to continue moving downwards. This prolongs the residence time of the sludge in the wastewater tank during its downward movement, maximizing the sedimentation efficiency of the sludge in the wastewater. This completes the initial sedimentation of the wastewater. Then, the outlet of the wastewater tank is connected to the main sedimentation tank for secondary sedimentation.

[0016] 2. In this utility model, the first filter plate enables the initial filtration and sedimentation of large particles of sludge in the wastewater; the second filter plate enables the wastewater to be diverted, allowing the wastewater and sludge in the wastewater to enter the main sedimentation tank evenly, facilitating secondary sedimentation in the main sedimentation tank; and the third filter plate enables the wastewater in the baffle channel to be filtered sequentially.

[0017] 3. In this utility model, the sludge deposited at the bottom of the wastewater tank can be collected in the middle of the wastewater tank by two symmetrical slopes; by setting the sludge outlet between the two slopes, it is convenient to clean the sludge at the bottom. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a top view schematic diagram of a wastewater sedimentation device provided in an embodiment of the present invention.

[0020] Figure 2 This is a front view schematic diagram of a wastewater sedimentation device provided in an embodiment of the present invention.

[0021] Attached reference numerals: 1-Wastewater tank, 2-Mud baffle, 3-First filter plate, 4-Second filter plate, 5-Third filter plate, 6-Slope, 7-Sludge outlet. Detailed Implementation

[0022] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0023] In this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] See Figures 1-2 The present invention provides an embodiment of a wastewater sedimentation device, comprising: a wastewater tank 1 and a baffle plate 2 disposed within the wastewater tank 1; an inlet and an outlet are respectively provided at both ends of the wastewater tank 1 along its length; one end of the baffle plate 2 is fixedly connected to the inner wall of the wastewater tank 1, and the other end of the baffle plate 2 is provided with a gap from the inner wall of the wastewater tank 1; and multiple baffle plates 2 are spaced apart along the length of the wastewater tank 1 to divide the wastewater tank 1 into a baffle channel connecting the inlet and the outlet; and the upper end of the baffle plate 2 is flush with the upper end of the wastewater tank 1, and the lower end of the baffle plate 2 is provided with a gap from the bottom of the wastewater tank 1, and the height of the baffle plate 2 increases gradually along the water flow direction within the wastewater tank 1.

[0026] In practice, the existing wastewater tank 1 is modified by installing multiple baffles 2 inside the wastewater tank 1. These baffles 2 divide the wastewater tank 1 into a reciprocating, twisting flow channel, increasing the flow path of the wastewater within the tank. By setting the baffles 2 to progressively increasing lengths, the sludge blocked by the baffles 2 moves downwards. As it moves to the lower gap, it is propelled by the wastewater and impacts the next baffle 2, which in turn drives the sludge to continue moving downwards. This process prolongs the residence time of the sludge in the wastewater tank 1, maximizing the settling efficiency of the sludge in the wastewater. This completes the initial sedimentation of the wastewater. Then, the outlet of the wastewater tank 1 is connected to the main sedimentation tank for secondary sedimentation.

[0027] See Figures 1-2 In other embodiments, a first filter plate 3 is installed at the inlet; the first filter plate 3 enables the preliminary filtration and sedimentation of large particles of sludge in the wastewater. Furthermore, a second filter plate 4 is provided at the outlet; the second filter plate 4 enables the wastewater to be diverted, allowing the wastewater and sludge in the wastewater to enter the main sedimentation tank evenly, facilitating secondary sedimentation in the main sedimentation tank.

[0028] See Figures 1-2 In other embodiments, a third filter plate 5 is provided in the gap between the inner walls of the mudguard 2 and the wastewater tank 1; the wastewater in the baffle channel can be filtered sequentially by the third filter plate 5.

[0029] See Figures 1-2 In another embodiment, a slope 6 is provided at the bottom of the wastewater tank 1; the slope 6 facilitates the accumulation of sludge at the bottom of the wastewater tank 1, making sludge cleaning easier; furthermore, two slopes 6 are symmetrically arranged; the two symmetrical slopes 6 allow the sludge accumulated at the bottom of the wastewater tank 1 to be collected in the middle of the wastewater tank 1; furthermore, a sludge outlet 7 is provided between the two slopes 6; by placing the sludge outlet 7 between the two slopes 6, the cleaning of the bottom sludge is facilitated.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A wastewater sedimentation device, characterized by, The utility model relates to a waste water tank, which comprises: a waste water tank with a water inlet and a water outlet at two ends along the length direction of the tank; and a plurality of mudguards arranged in the waste water tank, one end of each mudguard is fixedly connected to the inner side wall of the waste water tank, the other end of each mudguard is provided with a gap to the inner side wall of the waste water tank, the plurality of mudguards are arranged at intervals along the length direction of the waste water tank to divide the waste water tank into a baffle channel connected to the water inlet and the water outlet, the upper end of each mudguard is flush with the upper end of the waste water tank, the lower end of each mudguard is provided with a gap to the bottom of the waste water tank, and the height of each mudguard gradually increases along the direction of water flow in the waste water tank.

2. A wastewater sedimentation device according to claim 1, characterized in that A first filter plate is installed at the water inlet.

3. A wastewater sedimentation device according to claim 1, characterized in that A second filter plate is provided at the water outlet.

4. The wastewater sedimentation device of claim 1, wherein A third filter plate is arranged in the gap between the inner side walls of the waste water tank.

5. A wastewater sedimentation device according to claim 1, wherein A slope is arranged at the bottom of the waste water tank.

6. A wastewater sedimentation device according to claim 5, wherein Two slopes are symmetrically arranged.

7. A wastewater sedimentation device according to claim 6, wherein A sludge outlet is arranged between the two slopes.

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