Precipitation device for wastewater purification

Abstract

The utility model relates to a precipitation device for wastewater purification, which comprises a sewage pool and precipitation pools arranged on the two sides of the sewage pool, a filter plate and a precipitation salvage device are obliquely arranged along the depth of the precipitation pools, and the precipitation salvage device comprises a conveying plate, a salvage transmission mechanism and a plurality of separation teeth arranged on the inner side and the outer side of the conveying plate; the conveying plate is arranged above the filter plate in a manner of being parallel to the filter plate, and is driven by the salvage transmission mechanism to do lifting motion of ascending out of the water surface or descending to the pool bottom; a funnel-shaped through groove is formed between every two adjacent separation teeth. According to the application, the filter plate is obliquely designed on the sedimentation tank and is used for filtering relatively large solid precipitation slag, so that the relatively large solid precipitation slag can intensively slide onto the fishing device of the sedimentation tank along the inclined filter plate; then, under the action of the conveying belt, large solid precipitation residues are conveyed to the water surface from the lower part of the precipitation tank to be cleaned by workers, so that the sewage treatment convenience and the working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a sedimentation device for wastewater purification. Background Art

[0002] Sedimentation tanks are commonly used structures in sewage treatment processes to separate suspended solids and purify wastewater through natural sedimentation or coagulation. Sedimentation tanks are categorized into three types: horizontal flow, radial flow, and vertical flow, depending on the direction of water flow within the tank. Their effectiveness depends primarily on the flow rate and residence time of the water within the tank.

[0003] In the prior art, when commonly used sewage treatment equipment is in use, the precipitated sludge can be discharged and collected through the sewage outlet. However, the larger precipitated residue cannot be discharged directly because it does not have the function of automatically removing the larger precipitated residue. Manual operation of the staff is often required to remove the precipitated residue, which increases the workload, is time-consuming and labor-intensive, and has low work efficiency.

[0004] Therefore, in order to solve the problem that large-volume sediment residues need to be manually removed by staff, which is time-consuming and labor-intensive, a sedimentation device for wastewater purification is urgently needed to solve the above problem. Utility Model Content

[0005] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the above-mentioned problems.

[0006] The specific plan is as follows: A sedimentation device for wastewater purification includes a sewage pool and sedimentation tanks arranged on both sides of the sewage pool, filter plates and sedimentation salvage devices are arranged obliquely along the depth of the sedimentation tank, and the sedimentation salvage device includes a conveying plate, a salvage transmission mechanism and a plurality of separation teeth arranged on the inner and outer sides of the conveying plate; the conveying plate is arranged above the filter plate in a manner parallel to the filter plate, and is driven by the salvage transmission mechanism to rise out of the water surface or descend to the bottom of the pool; a funnel-shaped through groove is formed between two adjacent separation teeth.

[0007] Preferably, the salvage transmission mechanism includes two conveyor belts, two rotating shafts, and a drive motor, and the two rotating shafts are respectively rotatably connected to the top and bottom of the sedimentation tank; the two conveyor belts are respectively tensioned on both sides of the two rotating shafts through pulleys; the power end of the drive motor is fixedly connected to any rotating shaft to drive it to rotate and drive the conveying plate to perform lifting movements.

[0008] Preferably, the sewage tank is provided with an overflow outlet, and the overflow outlet is connected to the sedimentation tank.

[0009] Preferably, both sides of the top of the separation tooth are formed with outwardly inclined inclined surfaces.

[0010] Preferably, the height of the filter plate is lower than the overflow outlet.

[0011] Preferably, a sewage outlet connected to the sludge collection tank is provided at the bottom of the sedimentation tank.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This sewage treatment sedimentation device utilizes a tilted filter plate in the sedimentation tank to filter out larger solid sediment residues. This allows the larger solid sediment residues to slide down the tilted filter plate and fall onto a salvage device in the sedimentation tank. A funnel-shaped through groove is formed between two adjacent separation teeth in the salvage device, allowing smaller sludge to continue settling without affecting the sedimentation. The salvage device, driven by a conveyor belt, can be moved from the bottom of the sedimentation tank to transport larger solid sediment residues to the water surface. Workers only need to clean the sediment residue on the conveyor plate, thereby improving sewage treatment efficiency.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 This is a schematic diagram of the overall structure of a sedimentation device for wastewater purification in the utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the salvage transmission mechanism and the sedimentation salvage device in the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the conveying plate in the utility model. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1, and combined with Figure 2 and Figure 3 As shown in the figure, a sedimentation device for wastewater purification in an embodiment of the present invention includes a sewage pool 1 and sedimentation tanks 2 arranged on both sides of the sewage pool 1. Filter plates 23 and sedimentation salvage devices 21 are arranged obliquely along the depth of the sedimentation tank 2. In detail, the sedimentation salvage device 21 includes a conveying plate 21, a salvage transmission mechanism and a plurality of separation teeth 211 arranged on the inner and outer sides of the conveying plate 21; the conveying plate 21 is arranged above the filter plate in a manner parallel to the filter plate 23, and is driven by the salvage transmission mechanism to perform a lifting movement to rise out of the water surface or descend to the bottom of the pool; a funnel-shaped through groove 25 is formed between two adjacent separation teeth 211.

[0021] Furthermore, in order to ensure the smooth operation of the conveying plate 21, Figure 1 As shown, the salvage transmission mechanism includes two conveyor belts 26, two rotating shafts 22, and a drive motor (not shown). The two rotating shafts 22 are rotatably connected to the top and bottom of the sedimentation tank 2, respectively. The two conveyor belts 26 are tensioned on both sides of the two rotating shafts 22 via pulleys 24. The two sides of the conveyor plate 21 are fixed to the two conveyor belts 26. The power end of the drive motor (not shown) is fixedly connected to one of the rotating shafts 22 to drive its rotation and thus the conveyor plate 21 to move up and down. Accordingly, when a small volume of sediment has formed a certain thickness at the bottom of the sedimentation tank 2, the conveyor belts 26 can be used to appropriately adjust the position of the conveyor plate 21 at the bottom of the sedimentation tank 2 to ensure the sewage treatment efficiency of the sedimentation tank 2.

[0022] Furthermore, an overflow port 11 is provided on the top of the sewage tank 1 , the overflow port 11 is connected to the sedimentation tank 2 , and the height of the filter plate 23 is lower than the overflow port 11 .

[0023] like Figure 3 As shown in FIG. 1 , as another embodiment of the present invention, outwardly inclined slopes 2111 are formed on both sides of the top of the separation teeth 211. This not only facilitates the fixation of larger sediment residues, but also facilitates the accelerated sedimentation of smaller silt and sand along the slopes 2111.

[0024] Furthermore, a sewage outlet connected to the sludge collection tank is provided at the bottom of the sedimentation tank 2. Based on the above, it can be seen that the sewage treatment sedimentation device of the present application filters larger solid sediment residues by designing a filter plate 23 at an angle in the sedimentation tank 2, so that the larger solid sediment residues can slide along the inclined filter plate and fall onto the salvage device of the sedimentation tank 2. A funnel-shaped through groove 25 is formed between two adjacent separation teeth 211 in the sedimentation salvage device 21, which does not affect the continued sedimentation of smaller sludge. The sedimentation salvage device 21 can be moved from the bottom of the sedimentation tank 2 under the action of the conveyor belt 26 to transport larger solid sediment residues to the water surface.

Claims

1. A sedimentation device for wastewater purification, comprising a sewage pool and sedimentation tanks arranged on both sides of the sewage pool, characterized in that: A filter plate and a sedimentation salvage device are arranged obliquely along the depth of the sedimentation tank. The sedimentation salvage device includes a conveying plate, a salvage transmission mechanism, and a plurality of separation teeth arranged on both sides of the conveying plate. The conveying plate is arranged above the filter plate in a manner parallel to the filter plate and is driven by the salvage transmission mechanism to perform a lifting movement to rise out of the water surface or descend to the bottom of the tank. A funnel-shaped through groove is formed between two adjacent separation teeth.

2. A sedimentation device for wastewater purification according to claim 1, characterized in that: The sedimentation tank is also provided with a salvage transmission mechanism for driving the salvage device to move. The salvage transmission mechanism includes two conveyor belts, two rotating shafts, and a drive motor. The two rotating shafts are respectively rotatably connected to the top and bottom of the sedimentation tank; the two conveyor belts are respectively tensioned on both sides of the two rotating shafts through pulleys; the power end of the drive motor is fixedly connected to any rotating shaft to drive it to rotate and drive the conveying plate to perform lifting movements.

3. A sedimentation device for wastewater purification according to claim 1, characterized in that: The sewage pool is provided with an overflow port, the overflow port is communicated with the sedimentation tank, and the height of the filter plate is lower than the overflow port.

4. A sedimentation device for wastewater purification according to claim 1, characterized in that: Both sides of the top of the separation tooth are formed with outwardly inclined inclined surfaces.

5. A sedimentation device for wastewater purification according to claim 1, characterized in that: A sewage outlet connected to the sludge collection tank is provided at the bottom of the sedimentation tank.

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