Wastewater treatment device

Abstract

The invention provides a wastewater treatment device, and relates to the technical field of wastewater treatment equipment, the wastewater treatment device comprises a main water treatment box body, a wastewater discharge pipe, charging mixing pools and a clear water discharge pipe, the charging mixing pools are arranged on both sides of the upper part of the main water treatment box body, the wastewater discharge pipe is arranged on the upper part of the main water treatment box body, and the clear water discharge pipe is arranged on the lower part of the main water treatment box body. A middle partition plate is arranged in the middle of the inner side of the main water treatment box body, the interior of the main water treatment box body is divided into two independent side sedimentation tanks by the middle partition plate, transverse water blocking plates are arranged on the inner sides of the side sedimentation tanks at intervals in an array mode, and longitudinal water blocking plates are fixedly arranged in the middles of the transverse water blocking plates. The first telescopic cylinder supports the wastewater discharge pipe to rotate to switch the feeding mixing pools for pouring wastewater, so that the two feeding mixing pools are used for mixing the wastewater in turn, the stop waiting time of the wastewater discharge pipe is shortened, and the problems that the wastewater pipe needs to be closed to wait for the completion of mixing of the wastewater, a certain waiting time is needed, and the wastewater treatment time is prolonged are solved.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment equipment, and in particular to a wastewater treatment device. Background Art

[0002] A large amount of industrial wastewater is generated in industrial production such as bleaching and dyeing, papermaking, and fur processing. These industrial wastewaters contain a large amount of industrial processing residues. Industrial wastewater treatment equipment is used to treat industrial wastewater to reduce the pollution of the environment and recover the resources in the reusable wastewater.

[0003] Industrial wastewater promotes the precipitation of solids in wastewater by adding flocculant liquid. In order to ensure the precipitation efficiency of solids, the wastewater will be temporarily stored in the box and the stirring shaft will be used to fully mix the wastewater and flocculant liquid. After mixing, the wastewater will be discharged, and then the new wastewater will be mixed. The discharge of wastewater needs to be carried out intermittently, and the wastewater pipe needs to be closed to wait for the mixing of the wastewater. It takes a certain waiting time, which prolongs the treatment time of wastewater. The sewage is mixed in the sedimentation tank waiting for the fixed objects to sink and separate. At this time, the impact of the new sewage will drive the sediment to float to the upper layer of the water again, affecting the discharge of the upper clear water. Summary of the invention

[0004] The disclosed embodiment relates to a wastewater treatment device, wherein a first telescopic cylinder supports a wastewater discharge pipe to rotate and switch between the feed mixing tanks for filling wastewater, so that two feed mixing tanks perform wastewater feeding and mixing operations in turn, thereby reducing the stop waiting time of the wastewater discharge pipe, and a batching spray ring surrounds the outlet of the wastewater discharge pipe to discharge the feed liquid, and the feed liquid and wastewater are mixed during the discharge process of the wastewater discharge pipe, thereby reducing the wastewater treatment time, and after the opening and closing hatch is rotated and opened, the mixed wastewater in the feed mixing tank flows downward into a side sedimentation tank, and the transverse water blocking plate and the longitudinal water blocking plate increase the resistance to the flow of the wastewater, reduce the flow rate of the wastewater, promote the speed at which the wastewater turns to stillness and sedimentation, and reduce the situation in which the newly discharged wastewater drives the settled wastewater to flow around, and the blocking of the transverse water blocking plate and the longitudinal water blocking plate reduces the sediment around the floating pipe, thereby reducing the impact of the discharge of clean water in the upper layer of the water.

[0005] In a first aspect of the present disclosure, a wastewater treatment device is provided, specifically comprising: a main water treatment box, a wastewater discharge pipe, a material adding and mixing tank and a clean water discharge pipe, wherein the material adding and mixing tanks are arranged on both sides of the upper part of the main water treatment box, the wastewater discharge pipe is arranged on the upper part of the main water treatment box, the clean water discharge pipe is arranged on both sides of the tail of the main water treatment box, a middle partition plate is arranged in the middle part of the inner side of the main water treatment box, the middle partition plate divides the interior of the main water treatment box into two independent side sedimentation tanks, the bottom of the side sedimentation tank is connected to the sediment discharge pipe, the inner side partition array of the side sedimentation tank is arranged with a transverse water blocking plate, the middle part of the transverse water blocking plate is fixedly arranged with a longitudinal water blocking plate, and the transverse water blocking plate is provided with a flow groove.

[0006] In at least some embodiments, the side sedimentation tank is located below the feeding mixing tank, and the bottom of the transverse water blocking plate and the bottom of the side sedimentation tank are spaced apart to prevent the transverse water blocking plate from blocking the sediment from flowing to the sediment discharge pipe. The flow grooves of two adjacent transverse water blocking plates are aligned, and the flow grooves of the two transverse water blocking plates with aligned flow grooves and other adjacent transverse water blocking plates are staggered. The staggered flow grooves prevent water from flowing directly through the transverse water blocking plate, and the staggered flow grooves ensure the blocking effect of the transverse water blocking plate on the water flow.

[0007] In at least some embodiments, the head end of the wastewater discharge pipe is circumferentially connected to a lower connecting pipe, the lower connecting pipe is connected to the wastewater pipe, the lower connecting pipe is fixed on the outside of the main water treatment box, the tail end of the wastewater discharge pipe is fixedly provided with a batching spray ring, the batching spray ring is connected to the batching conveying pipe, the wastewater discharge pipe is rotatably connected to the telescopic rod of the first telescopic cylinder, the first telescopic cylinder is extended to support the wastewater discharge pipe to rotate around the connection between the wastewater discharge pipe and the lower connecting pipe, and the wastewater discharge pipe is switched to a feeding mixing tank on the other side to discharge wastewater.

[0008] In at least some embodiments, the ingredient delivery pipe is fixed on the outside of the wastewater discharge pipe, the ingredient delivery pipe is connected to the liquid supply pump of the slurry, the tail end of the first telescopic cylinder is rotatably connected to the main water treatment box, the tail end of the wastewater discharge pipe and the ingredient spray ring are located above the feeding mixing tank, and the ingredient spray ring is surrounded by a discharge port to discharge the slurry in an annular manner at the outlet of the wastewater discharge pipe.

[0009] In at least some embodiments, an electric mixing shaft is rotatably arranged in the middle part of the feeding and mixing tank, and the electric mixing shaft is driven to rotate by a top motor. The top motor of the electric mixing shaft is fixedly connected to a cross bar in the middle part of the feeding and mixing tank, and an opening and closing door is rotatably arranged in the rear shaft of the feeding and mixing tank, and the upper part of the opening and closing door is rotatably connected to the telescopic rod of the second telescopic cylinder.

[0010] In at least some embodiments, the tail of the second telescopic cylinder is rotatably connected to the main water treatment box, and the opening and closing hatch is above the side sedimentation tank and the transverse water blocking plate. When the second telescopic cylinder is shortened, the opening and closing hatch is vertically closed to seal the feeding mixing tank, and wastewater accumulation and mixing operations are performed inside the feeding mixing tank. The wastewater inside the feeding mixing tank is stirred and mixed evenly by the electric mixing shaft. When the second telescopic cylinder is extended, the lower part of the opening and closing hatch is separated from the feeding mixing tank, and the mixed wastewater in the feeding mixing tank flows downward into the side sedimentation tank.

[0011] In at least some embodiments, the tail end of the clean water discharge pipe is connected and fixed with a corrugated expansion tube, the tail end of the corrugated expansion tube is connected and fixed with a floating tube, the outer annular array of the floating tube has a fixed external buoyancy block, the top of the external buoyancy block is fixed with an upper connecting slide column, the upper connecting slide column and the connecting slide are axially penetrated and slidably connected, and the upper connecting slide column ensures the vertical lifting and lowering movement of the external buoyancy block and the floating tube.

[0012] In at least some embodiments, the connecting slide is fixedly arranged at the tail of the clean water discharge pipe, and the clean water discharge pipe, the corrugated telescopic tube and the floating tube form an inverted U-shaped structure. The clean water discharge pipe, the corrugated telescopic tube and the floating tube utilize the siphon principle to discharge the wastewater inside the side sedimentation tank. The side sedimentation tanks on both sides of the main water treatment box are connected and fixedly provided with a clean water discharge pipe. The corrugated telescopic tube, the floating tube and the external buoyancy block are all located on the inner side of the side sedimentation tank. The floating tube is located in the gap between the transverse water blocking plate and the inner wall of the side sedimentation tank. The floating tube floats on the surface of the wastewater through the external buoyancy block. The floating tube sucks in the upper layer of wastewater after the wastewater has settled, and the floating tube rises and falls with the height of the wastewater liquid level through the external buoyancy block.

[0013] The present invention provides a wastewater treatment device, which has the following beneficial effects:

[0014] The first telescopic cylinder supports the wastewater discharge pipe to rotate and switch the feeding and mixing tank for filling wastewater, so that the two feeding and mixing tanks take turns to perform the feeding and mixing operation of wastewater, shortening the stop waiting time of the wastewater discharge pipe. The material spraying ring surrounds the outlet of the wastewater discharge pipe to discharge the feed liquid, and the feed liquid and wastewater are mixed during the discharge process of the wastewater discharge pipe, further improving the mixing efficiency.

[0015] After the opening and closing hatch is rotated and opened, the mixed wastewater in the feeding and mixing tank flows downward to the side sedimentation tank. The horizontal water blocking plates and the vertical water blocking plates increase the resistance to the flow of wastewater, reduce the flow rate of wastewater, promote the speed at which wastewater turns to stillness and sedimentation, and reduce the situation in which newly discharged wastewater drives the settled wastewater to flow around. The obstruction of the horizontal water blocking plates and the vertical water blocking plates reduces the sediment around the floating pipe and reduces the impact of the discharge of clean water in the upper layer of water.

[0016] The floating tube floats on the surface of the wastewater through the external buoyancy block. The floating tube absorbs the upper layer of the wastewater after it has settled, reducing the suction of sediment. At the same time, the external buoyancy block rises and falls with the height of the wastewater liquid level to adapt to the changes in the wastewater height.

[0017] The clean water discharge pipe, the corrugated expansion pipe and the floating pipe form an inverted U-shaped structure. The clean water discharge pipe, the corrugated expansion pipe and the floating pipe use the siphon principle to discharge the waste water inside the side sedimentation tank, reduce the working time of the pump, and achieve the goal of reducing energy consumption and saving more energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of the present application;

[0022] Figure 2 A schematic diagram showing the main water treatment box structure of the present application is shown;

[0023] Figure 3 A schematic diagram showing the cross-sectional structure of the main water treatment box of the present application is shown;

[0024] Figure 4 A schematic diagram showing the wastewater discharge pipe structure of the present application is shown;

[0025] Figure 5 The schematic diagram of the structure of the clean water discharge pipe of the present application is shown;

[0026] Figure 6 The schematic diagram of the structure of the transverse water blocking plate of the present application is shown;

[0027] Figure 7 It shows a schematic structural diagram of the first telescopic cylinder of the present application in an extended state;

[0028] Figure 8 A schematic diagram showing the structure of the wastewater discharge pipe, the clean water discharge pipe and the main water treatment box in a state of being separated in the present application;

[0029] Reference numerals list

[0030] 1. Main water treatment box; 101. Middle partition plate; 102. Side sedimentation tank; 103. Horizontal water blocking plate; 104. Longitudinal water blocking plate; 105. Flow trough; 106. Sediment discharge pipe;

[0031] 2. Wastewater discharge pipe; 201. Lower connecting pipe; 202. Ingredient spraying ring; 203. Ingredient conveying pipe; 204. First telescopic cylinder;

[0032] 3. Adding and mixing tank; 301. Electric mixing shaft; 302. Opening and closing hatch; 303. Second telescopic cylinder;

[0033] 4. Clean water discharge pipe; 401. Corrugated telescopic pipe; 402. Floating pipe; 403. External buoyancy block; 404. Upper connecting slide column; 405. Connecting slide frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 8 :

[0036] The present invention proposes a wastewater treatment device, comprising: a main water treatment box 1, a wastewater discharge pipe 2, a feed mixing tank 3 and a clean water discharge pipe 4, a middle partition plate 101 is arranged at the inner middle of the main water treatment box 1, the middle partition plate 101 divides the interior of the main water treatment box 1 into two independent side sedimentation tanks 102, the bottom of the side sedimentation tank 102 is connected with a sediment discharge pipe 106, the inner partition array of the side sedimentation tank 102 is provided with a transverse water blocking plate 103, the middle of the transverse water blocking plate 103 is fixedly provided with a longitudinal water blocking plate 104, the transverse water blocking plate 103 is provided with a flow slot 105, both sides of the upper part of the main water treatment box 1 are provided with a feed mixing tank 3, the middle of the feed mixing tank 3 is rotatably provided with an electric mixing shaft 301, the electric mixing shaft 301 is driven to rotate by a top motor, and the electric mixing shaft The top motor of 301 is fixedly connected to the middle cross bar of the feeding and mixing tank 3, and the rear shaft of the feeding and mixing tank 3 cooperates to rotate with the opening and closing hatch 302, the upper part of the opening and closing hatch 302 is rotatably connected to the telescopic rod of the second telescopic cylinder 303, and the tail of the second telescopic cylinder 303 is rotatably connected to the main water treatment box 1, and the opening and closing hatch 302 is located above the side sedimentation tank 102 and the transverse water blocking plate 103. When the second telescopic cylinder 303 is shortened, the opening and closing hatch 302 is vertically closed to seal the feeding and mixing tank 3, and wastewater accumulation and mixing operations are performed inside the feeding and mixing tank 3. The wastewater inside the feeding and mixing tank 3 is stirred and mixed uniformly by the electric mixing shaft 301. When the second telescopic cylinder 303 is extended, the lower part of the opening and closing hatch 302 is separated from the feeding and mixing tank 3, and the mixed wastewater in the feeding and mixing tank 3 flows downward to the side sedimentation tank 102;

[0037] A wastewater discharge pipe 2 is arranged on the upper part of the main water treatment box 1, and a batching delivery pipe 203 is fixed on the outside of the wastewater discharge pipe 2. The batching delivery pipe 203 is connected to the liquid supply pump of the feed liquid. The tail end of the first telescopic cylinder 204 is rotatably connected to the main water treatment box 1. The tail end of the wastewater discharge pipe 2 and the batching spray ring 202 are located above the feeding mixing pool 3. The batching spray ring 202 is surrounded by a discharge port to discharge the feed liquid in an annular manner at the outlet of the wastewater discharge pipe 2. The feed liquid and the wastewater are mixed during the discharge process of the wastewater discharge pipe 2, thereby improving the mixing efficiency. Clean water discharge pipes 4 are provided on both sides of the tail of the water treatment box 1. The tail end of the clean water discharge pipe 4 is connected and fixed with a bellows telescopic tube 401. The tail end of the bellows telescopic tube 401 is connected and fixed with a floating tube 402. The outer annular array of the floating tube 402 has a fixed external buoyancy block 403. An upper connecting slide column 404 is fixed on the top of the external buoyancy block 403. The upper connecting slide column 404 and the connecting slide 405 are axially penetrated and slidably connected. The upper connecting slide column 404 ensures that the external buoyancy block 403 and the floating tube 402 can be lifted and lowered in the vertical direction.

[0038] In the disclosed embodiment, the side sedimentation tank 102 is located below the feeding mixing tank 3, and the bottom of the transverse water blocking plate 103 and the bottom of the side sedimentation tank 102 are arranged at intervals to prevent the transverse water blocking plate 103 from blocking the sediment from flowing to the sediment discharge pipe 106. The flow grooves 105 of two adjacent transverse water blocking plates 103 are aligned, and the two transverse water blocking plates 103 aligned with the flow grooves 105 and the flow grooves 105 of other adjacent transverse water blocking plates 103 are staggered. The staggered flow grooves 105 prevent the water flow from directly passing through the transverse water blocking plate 103 to flow. The staggered flow grooves 105 ensure the blocking effect of the transverse water blocking plate 103 on the water flow. The flow grooves 105 ensure the connectivity of the upper wastewater. The transverse water blocking plate 103 and the longitudinal water blocking plate 104 increase the resistance to the flow of the wastewater, reduce the flow rate of the wastewater, make the wastewater quickly become still, promote the speed of the wastewater turning to stillness and sedimentation, and reduce the impact flow of the wastewater on the surrounding.

[0039] In the disclosed embodiment, the head end of the wastewater discharge pipe 2 is circumferentially connected to the lower connecting pipe 201, the lower connecting pipe 201 is connected to the wastewater pipe, and the lower connecting pipe 201 is fixed on the outside of the main water treatment box 1. The tail end of the wastewater discharge pipe 2 is fixedly provided with a batching spray ring 202, the batching spray ring 202 is connected to the batching conveying pipe 203, the wastewater discharge pipe 2 is rotatably connected to the telescopic rod of the first telescopic cylinder 204, the first telescopic cylinder 204 is extended to support the wastewater discharge pipe 2 to rotate around the connection between the wastewater discharge pipe 2 and the lower connecting pipe 201, the wastewater discharge pipe 2 is switched to a feeding mixing tank 3 on the other side to discharge wastewater, so that the two feeding mixing tanks 3 take turns to perform the feeding and mixing operation of wastewater, shortening the waiting time for the wastewater discharge pipe 2 to stop discharging wastewater, and further improving the sewage discharge efficiency of the wastewater discharge pipe 2.

[0040] In the embodiment of the present disclosure, the connecting slide 405 is fixedly arranged at the tail of the clean water discharge pipe 4, and the clean water discharge pipe 4, the corrugated telescopic pipe 401 and the floating pipe 402 form an inverted U-shaped structure. The clean water discharge pipe 4, the corrugated telescopic pipe 401 and the floating pipe 402 use the siphon principle to discharge the waste water inside the side sedimentation tank 102, thereby reducing the working time of the pump connected to the clean water discharge pipe 4 and further reducing energy consumption. The side sedimentation tanks 102 on both sides of the main water treatment box 1 are connected and fixed with clean water. The discharge pipe 4, the bellows expansion tube 401, the floating tube 402 and the external buoyancy block 403 are all located inside the side sedimentation tank 102. The floating tube 402 is located between the transverse water blocking plate 103 and the inner wall of the side sedimentation tank 102. The floating tube 402 floats on the surface of the wastewater through the external buoyancy block 403. The floating tube 402 sucks in the wastewater on the upper layer after the wastewater has settled. The floating tube 402 rises and falls with the height of the wastewater liquid level through the external buoyancy block 403 to adapt to the height change of the wastewater.

[0041] Embodiment 2, based on embodiment 1, the electric mixing shaft 301 is not provided with a motor, and a motor is provided between the main water treatment box 1 and the feeding mixing tank 3. The motor drives the electric mixing shafts 301 on both sides to rotate through a belt, and two motors are reduced to one motor, thereby achieving the purpose of reducing costs.

[0042] The working principle of this embodiment is as follows: the lower connecting pipe 201 is connected to the sewage pipe, the industrial wastewater enters the feeding mixing tank 3 through the lower connecting pipe 201 and the wastewater discharge pipe 2, the material spraying ring 202 accelerates the dispensing of the sedimentation liquid, and the wastewater in the feeding mixing tank 3 is then stirred by the electric mixing shaft 301 to accelerate the mixing of the wastewater. In the process of the wastewater being stirred by the electric mixing shaft 301, the first telescopic cylinder 204 is extended to support the wastewater discharge pipe 2 to rotate around the connection between the wastewater discharge pipe 2 and the lower connecting pipe 201, and the wastewater discharge pipe 2 is switched to a feeding mixing tank 3 on the other side to discharge the wastewater. A telescopic cylinder 204 supports the wastewater discharge pipe 2 to rotate and switch the feeding and mixing pool 3 for perfusing wastewater, so that the two feeding and mixing pools 3 can perform the feeding and mixing operation of wastewater in turn, and shorten the waiting time for the wastewater discharge pipe 2 to stop discharging wastewater. The material spraying ring 202 is surrounded by a discharge port to discharge the material liquid in a circular manner at the outlet of the wastewater discharge pipe 2. The material liquid and wastewater are mixed during the discharge process of the wastewater discharge pipe 2, and the mixing efficiency is further improved. After the wastewater is mixed, the second telescopic cylinder 303 extends to support the opening and closing door 302 to rotate, and the lower part of the opening and closing door 302 is separated from the feeding and mixing pool 3, and the feeding and mixing pool 3 is turned to an open state.

[0043] The mixed wastewater in the feed mixing tank 3 flows downward to the side sedimentation tank 102, and the wastewater flows downward and collides with the transverse water blocking plate 103 and the longitudinal water blocking plate 104. The transverse water blocking plate 103 and the longitudinal water blocking plate 104 increase the resistance of the wastewater flow, reduce the flow rate of the wastewater, make the wastewater quickly become still, promote the speed of the wastewater turning to stillness and sedimentation, reduce the impact of the wastewater on the surrounding flow, reduce the situation where the newly discharged wastewater drives the settled wastewater to flow around, and reduce the impact of the upper layer of clean water discharge. The obstruction of the transverse water blocking plate 103 and the longitudinal water blocking plate 104 reduces the sediment around the floating tube 402, and the wastewater with more sediment in the lower layer of the side sedimentation tank 102 is discharged from the sediment discharge pipe 106 to the outside and enters the filter press for solid-liquid separation process;

[0044] The wastewater with less sediment in the upper layer of the side sedimentation tank 102 is sucked by the floating pipe 402 and discharged outward through the clean water discharge pipe 4 for subsequent processes such as microbial treatment. The clean water discharge pipe 4, the corrugated telescopic pipe 401 and the floating pipe 402 form an inverted U-shaped structure. The clean water discharge pipe 4, the corrugated telescopic pipe 401 and the floating pipe 402 use the siphon principle to discharge the wastewater inside the side sedimentation tank 102, reducing the working time of the pump connected to the clean water discharge pipe 4, achieving the goal of reducing energy consumption and saving more energy. The floating pipe 402 floats on the wastewater surface through the external buoyancy block 403 On the surface, the floating tube 402 sucks in the wastewater in the upper layer after the wastewater has settled, reducing the suction of the middle and lower sediments by the floating tube 402. At the same time, the floating tube 402 rises and falls with the wastewater level through the external buoyancy block 403. The floating tube 402 drives the corrugated telescopic tube 401 to expand and contract. As the external buoyancy block 403 and the floating tube 402 move synchronously, the upper connecting slide column 404 ensures that the external buoyancy block 403 and the floating tube 402 are lifted and lowered in the vertical direction to adapt to the changes in the wastewater height and ensure that the wastewater in the upper layer is always discharged.

[0045] In this article, there are a few points to note:

[0046] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0047] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0048] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A wastewater treatment device, comprising: A main water treatment box (1), a wastewater discharge pipe (2), a material adding and mixing tank (3) and a clean water discharge pipe (4); characterized in that the main water treatment box (1) is provided with a material adding and mixing tank (3) on both sides of the upper part, the main water treatment box (1) is provided with a wastewater discharge pipe (2), the main water treatment box (1) is provided with a clean water discharge pipe (4) on both sides of the tail, and the main water treatment box (1) is provided with a middle partition plate (101) in the middle of the inner side. ), a middle partition plate (101) divides the interior of the main water treatment box (1) into two independent side sedimentation tanks (102), the bottom of the side sedimentation tank (102) is connected to a sediment discharge pipe (106), the inner partition array of the side sedimentation tank (102) is provided with a transverse water blocking plate (103), the middle of the transverse water blocking plate (103) is fixedly provided with a longitudinal water blocking plate (104), and the transverse water blocking plate (103) is provided with a flow groove (105).

2. A wastewater treatment device according to claim 1, characterized in that: The side sedimentation tank (102) is located below the feeding mixing tank (3); the bottom of the transverse water blocking plate (103) and the bottom of the side sedimentation tank (102) are arranged at intervals; the flow grooves (105) of two adjacent transverse water blocking plates (103) are arranged in alignment; the two transverse water blocking plates (103) with the flow grooves (105) aligned with the flow grooves (105) and the flow grooves (105) of other adjacent transverse water blocking plates (103) are arranged in a staggered manner.

3. A wastewater treatment device according to claim 1, characterized in that: The head end of the wastewater discharge pipe (2) is connected to a lower connecting pipe (201) in a circumferentially rotatable manner, and the lower connecting pipe (201) is fixed to the outside of the main water treatment box (1). A batching spray ring (202) is fixedly provided at the tail end of the wastewater discharge pipe (2), and the batching spray ring (202) is connected to the batching conveying pipe (203). The wastewater discharge pipe (2) is rotatably connected to the telescopic rod of the first telescopic cylinder (204).

4. A wastewater treatment device according to claim 3, characterized in that: The batching conveying pipe (203) is fixed on the outside of the wastewater discharge pipe (2), the tail end of the first telescopic cylinder (204) is rotatably connected to the main water treatment box (1), and the tail end of the wastewater discharge pipe (2) and the batching spray ring (202) are located above the feeding mixing tank (3).

5. A wastewater treatment device according to claim 1, characterized in that: An electric mixing shaft (301) is rotatably arranged in the middle of the feeding and mixing tank (3), and an opening and closing hatch (302) is rotatably arranged in the rear shaft of the feeding and mixing tank (3), and the upper part of the opening and closing hatch (302) is rotatably connected to the telescopic rod of the second telescopic cylinder (303).

6. A wastewater treatment device according to claim 5, characterized in that: The tail of the second telescopic cylinder (303) is rotatably connected to the main water treatment box (1), and the opening and closing hatch (302) is located above the side sedimentation tank (102) and the transverse water blocking plate (103). When the second telescopic cylinder (303) is shortened, the opening and closing hatch (302) is vertically closed to seal the feeding and mixing tank (3). When the second telescopic cylinder (303) is extended, the lower part of the opening and closing hatch (302) is separated from the feeding and mixing tank (3).

7. A wastewater treatment device according to claim 1, characterized in that: The tail end of the clean water discharge pipe (4) is connected and fixed with a bellows telescopic pipe (401), the tail end of the bellows telescopic pipe (401) is connected and fixed with a floating pipe (402), the outer annular array of the floating pipe (402) has a fixed external buoyancy block (403), the top of the external buoyancy block (403) is fixed with an upper connecting slide column (404), and the upper connecting slide column (404) and the connecting slide frame (405) are axially penetrated and slidably connected.

8. A wastewater treatment device according to claim 7, characterized in that: The connecting slide (405) is fixedly arranged at the tail of the clean water discharge pipe (4); the clean water discharge pipe (4), the bellows telescopic pipe (401) and the floating pipe (402) form an inverted U-shaped structure; the side sedimentation tanks (102) on both sides of the main water treatment box (1) are connected and fixedly provided with the clean water discharge pipe (4); the bellows telescopic pipe (401), the floating pipe (402) and the external buoyancy block (403) are all located inside the side sedimentation tank (102); and the floating pipe (402) is located at the interval between the transverse water blocking plate (103) and the inner wall of the side sedimentation tank (102).

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