Anti-blocking type constructed wetland domestic sewage advanced treatment device

Abstract

The utility model discloses an anti-blocking type constructed wetland domestic sewage advanced treatment device which comprises a precipitation structure, a filtering structure is arranged in the precipitation structure, the filtering structure is connected with an adjusting structure, one side of the precipitation structure is connected with a sludge discharge structure, the other side of the precipitation structure is connected with a liquid outlet structure, and the sludge discharge structure comprises a sludge discharge pipe and a transmission screw rod. And a transmission screw rod is connected in the sludge discharge pipe. The sedimentation tank has the beneficial effects that the sedimentation structure is matched with the filtering structure and the adjusting structure, so that the effective space for sludge sedimentation in the sedimentation tank can be adjusted, meanwhile, the sludge discharge efficiency can be improved by matching with the sludge discharge structure, and the sedimentation tank is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of environmental protection, and more specifically, to an anti-blocking type deep treatment device for domestic sewage in constructed wetlands. Background Art

[0002] Domestic sewage contains a large amount of organic matter and nutrients such as nitrogen and phosphorus, and is regarded as a pollutant compared with natural water bodies. The quality of domestic sewage is stable but turbid, dark in color and accompanied by a smell, slightly alkaline, generally does not contain toxic substances, and contains a large number of bacteria, viruses and parasite eggs. At present, the conventional sewage treatment process mainly focuses on the activated sludge method supplemented by the land treatment method.

[0003] The deep treatment device for domestic sewage in constructed wetlands generally generates sludge. Especially in the initial sedimentation tank, a large amount of sludge will be precipitated. Therefore, it is necessary to treat the sludge. The general method for treating the sludge in the sedimentation tank of the existing deep treatment device for domestic sewage in constructed wetlands is to export it through a sludge pump. However, due to the shape of the sedimentation tank, the efficiency of sludge export is poor, and generally a large amount of sludge remains untreated, requiring additional subsequent treatment means. Summary of the Utility Model

[0004] In view of the problems in the related art, the present utility model proposes an anti-blocking type deep treatment device for domestic sewage in constructed wetlands to overcome the above technical problems existing in the related art.

[0005] For this purpose, the specific technical solutions adopted by the present utility model are as follows:

[0006] An anti-blocking type deep treatment device for domestic sewage in constructed wetlands includes a sedimentation structure, a filtering structure is installed in the sedimentation structure, the filtering structure is connected to an adjusting structure, one side of the sedimentation structure is connected to a sludge discharging structure, the other side of the sedimentation structure is connected to a liquid discharging structure, and the sludge discharging structure includes a sludge discharging pipe and a transmission screw, and a transmission screw is connected inside the sludge discharging pipe.

[0007] Furthermore, the sedimentation structure includes a sedimentation tank, a liquid inlet, a sludge discharge port, a guiding groove, an installation groove, and a liquid discharge port. A liquid inlet is opened on one side of the sedimentation tank, and a sludge discharge port is provided at one end of the liquid inlet, and the sludge discharge port is opened on the sedimentation tank.

[0008] Furthermore, a guiding groove is opened at the bottom of the sedimentation tank, an installation groove is opened at the side of the sedimentation tank, and a liquid discharge port is provided on the side of the sedimentation tank away from the liquid inlet.

[0009] Furthermore, the filtering structure includes a mounting plate, a water filter mesh, a limiting guide rail, an adjusting plate, a fixed support ear, a connecting slider, a triangular base, and a connecting block. A water filter mesh is installed on the mounting plate, a limiting guide rail is fixedly connected to the mounting plate, the limiting guide rail is connected to the adjusting plate, one end of the adjusting plate rotates the fixed support ear, and the fixed support ear is fixedly installed at the bottom end of the sedimentation tank.

[0010] Further, the other end of the adjusting plate is rotatably connected with a connecting slider, the connecting slider is in limiting sliding connection with the limiting guide rail, the bottom end of the mounting plate is fixedly connected with a triangular base, and one end of the triangular base is fixedly connected with a connecting block, and the connecting block is in limiting sliding connection in the guiding groove.

[0011] Further, the adjusting structure includes a driving motor, a winding wheel, a traction rope, a guide wheel, and a through plug. The driving end of the driving motor is connected with the winding wheel. The winding wheel and the driving motor are installed on the sedimentation tank. One end of the traction rope is connected to the winding wheel, and the other end of the traction rope is connected to the connecting block. The traction rope is drivingly connected with the guide wheel, and the guide wheel is installed in the installation groove.

[0012] Further, the liquid outlet structure includes a liquid outlet pipe, a solenoid valve, and a main liquid outlet pipe. A solenoid valve is connected to the liquid outlet pipe, and the port of the liquid outlet pipe is connected to the main liquid outlet pipe.

[0013] The beneficial effects of the present utility model are as follows: The sedimentation structure of the present utility model, in cooperation with the filtering structure and the adjusting structure, can adjust the effective space for sludge sedimentation in the sedimentation tank. At the same time, it can cooperate with the sludge discharge structure to improve the efficiency of sludge discharge and prevent the sedimentation tank from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the main structure of an anti-blocking artificial wetland domestic sewage deep treatment device according to an embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the sedimentation structure of an anti-blocking artificial wetland domestic sewage deep treatment device according to an embodiment of the present utility model;

[0017] Figure 3 It is a schematic diagram of the filtering structure of an anti-blocking artificial wetland domestic sewage deep treatment device according to an embodiment of the present utility model;

[0018] Figure 4 It is a schematic diagram of the adjusting structure of an anti-blocking artificial wetland domestic sewage deep treatment device according to an embodiment of the present utility model;

[0019] Figure 5 It is a schematic diagram of the sludge discharge structure of an anti-blocking artificial wetland domestic sewage deep treatment device according to an embodiment of the present utility model;

[0020] Figure 6 It is a schematic diagram of the liquid outlet structure of a sewage advanced treatment device for an anti-blocking artificial wetland according to an embodiment of the present invention.

[0021] In the figure:

[0022] 1. Precipitation structure; 101. Sedimentation tank; 102. Liquid inlet; 103. Mud discharge port; 104. Guide groove; 105. Installation groove; 106. Liquid discharge port; 2. Filtration structure; 201. Installation plate; 202. Filter screen; 203. Limit guide rail; 204. Adjusting plate; 205. Fixed support ear; 206. Connecting slider; 207. Triangular base; 208. Connecting block; 3. Adjusting structure; 301. Driving motor; 302. Winding wheel; 303. Traction rope; 304. Guide pulley; 305. Through plug; 4. Mud discharge structure; 401. Mud discharge pipe; 402. Transmission screw; 5. Liquid outlet structure; 501. Liquid outlet pipe; 502. Solenoid valve; 503. Total liquid outlet pipe. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] According to an embodiment of the present invention, a sewage advanced treatment device for an anti-blocking artificial wetland is provided.

[0025] Embodiment 1;

[0026] As Figure 1 -6 shows, the sewage advanced treatment device for an anti-blocking artificial wetland according to an embodiment of the present invention includes a precipitation structure 1, a filtration structure 2 is installed in the precipitation structure 1, the filtration structure 2 is connected with an adjusting structure 3, one side of the precipitation structure 1 is connected with a mud discharge structure 4, the other side of the precipitation structure 1 is connected with a liquid outlet structure 5, the mud discharge structure 4 includes a mud discharge pipe 401 and a transmission screw 402, and the transmission screw 402 is connected in the mud discharge pipe 401.

[0027] After the precipitation structure 1 introduces sewage, the larger particulate matters and suspended solid substances in the sewage are filtered through the filtration structure 2 and the adjustment structure 3, causing them to gradually deposit and form preliminary sludge. When sewage discharge is required, the transmission screw 402 is connected to the drive motor, enabling the sludge to be discharged through the transmission screw 402 in the sludge discharge pipe 401. The adjustment structure 3 can adjust the position of the filtration structure 2 and simultaneously squeeze and displace the sludge, causing the sludge in the sedimentation tank 101 to be driven and pushed to a position close to the sludge discharge pipe 401. The liquid outlet structure 5 discharges the filtered sewage to the next stage, which is an anaerobic or anoxic tank. Anaerobic microorganisms are used to degrade organic matter and simultaneously remove some nitrogen and phosphorus pollutants. In an aerobic environment, aerobic microorganisms are used to further decompose organic matter and simultaneously remove nitrogen and phosphorus pollutants. An aeration tank or a biological contact oxidation tank is usually used in this stage. Then the sewage enters from the wetland surface and vertically penetrates through the wetland matrix layer. During this process, pollutants such as organic matter, nitrogen, and phosphorus in the sewage are degraded and adsorbed by the roots of wetland plants and microorganisms in the matrix. The sewage flows horizontally along the wetland, and through the action of the wetland matrix layer and plants, pollutants are further removed. Compared with vertical flow wetlands, horizontal flow wetlands are more effective in removing nutrients such as nitrogen and phosphorus. The sewage flows freely on the wetland surface, and plants and microorganisms in the surface water layer are used to absorb and decompose pollutants.

[0028] The precipitation structure 1 includes a sedimentation tank 101, a liquid inlet 102, a sludge outlet 103, a guide groove 104, an installation groove 105, and a liquid outlet 106. A liquid inlet 102 is provided on one side of the sedimentation tank 101. One end of the liquid inlet 102 is provided with a sludge outlet 103, and the sludge outlet 103 is opened on the sedimentation tank 101. A guide groove 104 is opened at the bottom of the sedimentation tank 101. An installation groove 105 is opened on the side of the sedimentation tank 101. A liquid outlet 106 is provided on the side of the sedimentation tank 101 away from the liquid inlet 102.

[0029] The initial sewage is introduced through the liquid inlet 102 and filtered through the filtration structure 2, causing the sediment to remain on the filter mesh 202 and the adjustment plate 204. The adjustment plate 204 is provided with a filter net, which can continuously filter the water in the sediment. When the sludge on the adjustment plate 204 needs to be discharged after accumulation, the adjustment structure 3 causes the adjustment plate 204 to act, causing the sludge to accumulate towards the sludge outlet 103.

[0030] The filtering structure 2 includes a mounting plate 201, a water filtering net 202, a limiting guide rail 203, an adjusting plate 204, a fixed support ear 205, a connecting slider 206, a triangular base 207, and a connecting block 208. The water filtering net 202 is installed on the mounting plate 201. The limiting guide rail 203 is fixedly connected to the mounting plate 201. The limiting guide rail 203 is connected to the adjusting plate 204. When in actual use, a sealing rubber soft plate is provided between the adjusting plate 204 and the inner wall of the sedimentation tank 101, so that the sludge accumulated at the end of the adjusting plate 204 will not pass through the adjusting plate 204 and the sedimentation tank 101. One end of the adjusting plate 204 is rotatably fixed to the support ear 205, and the fixed support ear 205 is fixedly installed at the bottom end of the sedimentation tank 101. The other end of the adjusting plate 204 is rotatably connected to the connecting slider 206, and the connecting slider 206 is in limiting sliding connection with the limiting guide rail 203. The bottom end of the mounting plate 201 is fixedly connected to the triangular base 207. One end of the triangular base 207 is fixedly connected to the connecting block 208, and the connecting block 208 is in limiting sliding connection in the guide groove 104.

[0031] The connecting block 208 of the filtering structure 2 is connected to the towing rope 303 of the adjusting structure 3. There are two groups of adjusting structures 3, with two driving motors 301 in each group. The driving motors 301 drive the winding wheels 302 to pull the towing rope 303, so that the triangular base 207 moves in the guiding manner of the guide groove 104. At the same time, the position of the adjusting plate 204 in the sedimentation tank 101 changes. Therefore, the effective sedimentation space of the sludge will be changed, and the sludge on the adjusting plate 204 can be accumulated towards its sludge discharge port 103 as the slope of the plate body becomes larger, improving the sludge discharge efficiency and reducing the sludge residue.

[0032] The adjusting structure 3 includes a driving motor 301, a winding wheel 302, a towing rope 303, a guide wheel 304, and a through plug 305. The driving end of the driving motor 301 is connected to the winding wheel 302. The winding wheel 302 and the driving motor 301 are installed on the sedimentation tank 101. One end of the towing rope 303 is connected to the winding wheel 302, and the other end of the towing rope 303 is connected to the connecting block 208. The towing rope 303 is in transmission connection with the guide wheel 304, and the guide wheel 304 is installed in the installation groove 105.

[0033] The liquid outlet structure 5 includes a liquid outlet pipe 501, an electromagnetic valve 502, and a liquid outlet main pipe 503. The electromagnetic valve 502 is connected to the liquid outlet pipe 501, and the port of the liquid outlet pipe 501 is connected to the liquid outlet main pipe 503.

[0034] There are four liquid outlet pipes 501. The electromagnetic valve 502 can control the on-off of the liquid outlet pipe 501. Each liquid outlet pipe 501 is communicated with the liquid outlet main pipe 503. The multiple liquid outlet pipes 501 can improve the liquid discharge effect.

[0035] To facilitate the understanding of the above technical solutions of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0036] After introducing sewage through the precipitation structure 1, the larger particulate matter and suspended solid substances in the sewage are filtered through the filtration structure 2 and the adjustment structure 3, causing them to gradually settle and form preliminary sludge. When sewage discharge is required, the transmission screw 402 is connected to the driving motor, and an outlet is opened at an appropriate position of the sludge discharge pipe 401, so that the sludge is discharged through the outlet of the transmission screw 402 in the sludge discharge pipe 401. The adjustment structure 3 can adjust the position of the filtration structure 2 and simultaneously squeeze and displace the sludge, so that the sludge in the sedimentation tank 101 can be driven and pushed to a position close to the sludge discharge pipe 401. The liquid outlet structure 5 discharges the filtered sewage to the next stage. The initial sewage is introduced through the liquid inlet 102 and filtered through the filtration structure 2, leaving the sediment on the filter mesh 202 and the adjustment plate 204. The adjustment plate 204 is provided with a filter mesh to continuously filter the water in the sediment. When the sludge on the adjustment plate 204 needs to be discharged after accumulation, the adjustment structure 3 causes the adjustment plate 204 to act, causing the sludge to accumulate towards the sludge discharge port 103. The connecting block 208 of the filtration structure 2 is connected to the towing rope 303 of the adjustment structure 3. The adjustment structure 3 is provided with two groups, with two driving motors 301 in each group. The driving motors 301 drive the winding wheels 302 to pull the towing rope 303, causing the triangular base 207 to move in the guiding mode of the guiding groove 104. At the same time, the position of the adjustment plate 204 in the sedimentation tank 101 changes, thus changing the effective sedimentation space of the sludge and enabling the sludge on the adjustment plate 204 to accumulate towards its sludge discharge port 103 as the slope of the plate body increases, improving the sludge discharge efficiency and reducing the sludge residue. There are four liquid outlet pipes 501, and the solenoid valve 502 can control the on-off of the liquid outlet pipes 501. Each liquid outlet pipe 501 is connected to the liquid outlet main pipe 503. The multiple liquid outlet pipes 501 can improve the liquid discharge effect. In addition, it is worth noting that when the adjustment plate 204 moves up and down, it can scrape off the sediment on the surface of the filter mesh 202, and at the same time, the sediment on its surface can also be washed away by the impact of water.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An anti-blocking type advanced treatment device for domestic sewage in constructed wetland, characterized in that, It includes a precipitation structure (1), inside which a filtering structure (2) is installed. The filtering structure (2) is connected to an adjusting structure (3). One side of the precipitation structure (1) is connected to a sludge discharging structure (4), and the other side of the precipitation structure (1) is connected to a liquid discharging structure (5). The sludge discharging structure (4) includes a sludge discharging pipe (401) and a transmission screw (402), and the transmission screw (402) is connected inside the sludge discharging pipe (401). The filtering structure (2) includes a mounting plate (201), a water filtering net (202), a limiting guide rail (203), an adjusting plate (204), a fixed support ear (205), a connecting slider (206), a triangular base (207), and a connecting block (208). The water filtering net (202) is installed on the mounting plate (201), the limiting guide rail (203) is fixedly connected to the mounting plate (201), the limiting guide rail (203) is connected to the adjusting plate (204), and one end of the adjusting plate (204) rotatably fixes the support ear (205).

2. The deep treatment device for domestic sewage in an anti-blocking constructed wetland according to claim 1, characterized in that, The precipitation structure (1) includes a sedimentation tank (101), a liquid inlet (102), a sludge outlet (103), a guiding groove (104), a mounting groove (105), and a liquid discharge port (106). A liquid inlet (102) is opened on one side of the sedimentation tank (101), and a sludge outlet (103) is provided at one end of the liquid inlet (102), and the sludge outlet (103) is opened on the sedimentation tank (101).

3. The deep treatment device for domestic sewage of an anti-blocking artificial wetland according to claim 2, characterized in that, A guiding groove (104) is opened at the bottom of the sedimentation tank (101), a mounting groove (105) is opened on the side of the sedimentation tank (101), and a liquid discharge port (106) is provided on the side of the sedimentation tank (101) away from the liquid inlet (102).

4. The deep treatment device for domestic sewage of an anti-clogging artificial wetland according to claim 3, characterized in that, The fixed support ear (205) is fixedly installed at the bottom end of the sedimentation tank (101).

5. The depth treatment device for domestic sewage in an anti-blocking artificial wetland according to claim 4, characterized in that, The other end of the adjusting plate (204) is rotatably connected to the connecting slider (206), the connecting slider (206) is in limiting sliding connection with the limiting guide rail (203), the bottom end of the mounting plate (201) is fixedly connected to the triangular base (207), one end of the triangular base (207) is fixedly connected to the connecting block (208), and the connecting block (208) is in limiting sliding connection inside the guiding groove (104).

6. The depth treatment device for domestic sewage in an anti-blocking constructed wetland according to claim 5, characterized in that, The adjusting structure (3) includes a driving motor (301), a winding wheel (302), a traction rope (303), a guide wheel (304), and a through plug (305). The driving end of the driving motor (301) is connected to the winding wheel (302), the winding wheel (302) and the driving motor (301) are installed on the sedimentation tank (101), one end of the winding wheel (302) is connected to the traction rope (303), the other end of the traction rope (303) is connected to the connecting block (208), the traction rope (303) is in transmission connection with the guide wheel (304), and the guide wheel (304) is installed in the mounting groove (105).

7. An anti-clogging type advanced treatment device for domestic sewage in constructed wetland, characterized in that, The liquid outlet structure (5) includes a liquid outlet pipe (501), a solenoid valve (502), and a main liquid outlet pipe (503). A solenoid valve (502) is connected to the liquid outlet pipe (501), and the port of the liquid outlet pipe (501) is connected to the main liquid outlet pipe (503).

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