CN115849535B

CN115849535B - Wastewater treatment device

Info

Publication number: CN115849535B
Application number: CN202310053715.2A
Authority: CN
Inventors: 张洪松; 吕蕊; 程绪长; 刘天明; 张金玲
Original assignee: Shandong Polytechnic College
Current assignee: Shandong Polytechnic College
Priority date: 2023-02-03
Filing date: 2023-02-03
Publication date: 2023-06-30
Anticipated expiration: 2043-02-03
Also published as: CN115849535A

Abstract

The invention relates to the field of wastewater treatment, in particular to a wastewater treatment device. The invention provides a wastewater treatment device which can carry out multistage treatment on wastewater and purify the wastewater more thoroughly. A wastewater treatment device comprises a mounting frame, a sediment reaction bin, a sediment bin, a wastewater bin and the like; the sediment reaction bin is arranged on one side of the mounting frame, the sediment bin is arranged at the top of the sediment reaction bin, the lower part of the sediment bin is positioned in the sediment reaction bin, the sediment bin is communicated with the sediment reaction bin, and the wastewater bin is arranged on one side of the mounting frame away from the sediment reaction bin. The liquid return pipe moves downwards to extrude the sliding rod to move downwards, then the sedimentation bin is opened, sediment at the lower part of the sedimentation bin is discharged, and meanwhile, the round baffle moves downwards to block the sedimentation bin, so that wastewater cannot flow into the sediment reaction bin, and the purposes of separating wastewater from sediment and discharging the sediment can be achieved, so that the wastewater is subjected to secondary treatment subsequently.

Description

Wastewater treatment device

Technical Field

The invention relates to the field of wastewater treatment, in particular to a wastewater treatment device.

Background

The wastewater treatment is to treat the wastewater by using physical, chemical and biological methods, so that the wastewater is purified, pollution is reduced, the wastewater is recovered and reused, and water resources are fully utilized. The existing industrial wastewater can be discharged after being used by certain purification treatment, and if the industrial wastewater is directly discharged to the outside, the environment is polluted, and the health of human beings is affected.

The prior art generally has a single treatment method for wastewater, most of the wastewater is treated by adding a flocculating agent into the wastewater to precipitate impurities so as to achieve the aim of purifying the wastewater, and some wastewater is also required to be added with a biocide to disinfect and sterilize, so that the odor is removed, but the flocculating agent and the biocide cannot be mixed, and the precipitate is required to be discharged to be added with the biocide, so that the wastewater is required to be subjected to multistage treatment, however, the conventional wastewater treatment device is inconvenient for carrying out multistage treatment on the flocculating agent and the biocide on the wastewater, so that the wastewater treatment effect is poor, and the wastewater is not thoroughly purified.

Disclosure of Invention

In view of the above, the present invention provides a wastewater treatment apparatus capable of performing multistage treatment on wastewater to purify the wastewater more thoroughly.

The technical implementation scheme of the invention is as follows: the utility model provides a waste water treatment device, includes mounting bracket, sediment reaction storehouse, sediment storehouse, waste water storehouse, siphunculus, separator, discharging device, locking device, washing unit and interpolation device, sediment reaction storehouse fixed connection is in mounting bracket one side, sediment reaction storehouse bottom has the discharge valve through bolted connection, sediment storehouse fixed connection is at sediment reaction storehouse top, sediment storehouse lower part is located in the sediment reaction storehouse, just sediment storehouse and sediment reaction storehouse intercommunication, waste water storehouse fixed connection is kept away from one side of sediment reaction storehouse at the mounting bracket, waste water storehouse bottom intercommunication has an overflow pipe, sediment reaction storehouse upper portion and sediment storehouse upper portion all communicate there is the siphunculus, two all rotate on the siphunculus and be connected with the ooff valve, separator establishes on the mounting bracket, discharging device establishes on sediment storehouse, locking device establishes on discharging device, washing unit establishes on separator, interpolation device establishes on separator.

Preferably, the separating device comprises a cylinder, a water pump, a water inlet pipe, a circular partition plate, a drain pipe and a hose, wherein the cylinder is fixedly connected to the mounting frame, the water pump is fixedly connected to the telescopic rod of the cylinder, the water pump is communicated with the upper end of the water inlet pipe and the upper end of the drain pipe, the lower portion of the water inlet pipe penetrates through the sedimentation bin, a plurality of drain holes are formed in the lower portion of the water inlet pipe, the circular partition plate is fixedly connected to the bottom end of the water inlet pipe, the hose is fixedly connected to the lower end of the drain pipe, and the hose is made of soft materials and is communicated with the drain pipe.

Preferably, the discharging device comprises a fixed sleeve, a U-shaped hollow pipe, a reset spring and a conical block, wherein two fixed sleeves are fixedly connected to the outer wall of the lower part of the sedimentation bin, the two fixed sleeves are connected with the U-shaped hollow pipe in a sliding mode, the U-shaped hollow pipe is of a hollow structure, round holes are formed in the left side and the right side, the two reset springs are respectively connected between the fixed sleeves and the U-shaped hollow pipe, the conical block is fixedly connected to the U-shaped hollow pipe, the conical block is positioned in the sedimentation bin, and the conical block is in contact with the sedimentation bin.

Preferably, the locking device comprises steel balls, a U-shaped plate, supporting springs and a sliding rod, wherein the steel balls are arranged on the left side and the right side in the U-shaped hollow tube, the steel balls are positioned in round holes of the U-shaped hollow tube, the steel balls are in contact with the fixed sleeve, the U-shaped plate is arranged inside the U-shaped hollow tube, the two ends of the U-shaped plate are respectively in contact with the steel balls, the two supporting springs are connected between the U-shaped plate and the U-shaped hollow tube, the sliding rod is fixedly connected to the U-shaped plate, the sliding rod penetrates through the U-shaped hollow tube, and the sliding rod is connected with the conical block in a sliding mode.

Preferably, the flushing device comprises a drain pan, a liquid return pipe and a valve, wherein the drain pan is fixedly connected to the bottom of the circular partition plate, the lower end of the liquid return pipe is connected with the drain pan, the liquid return pipe is communicated with the drain pan, the liquid return pipe penetrates through the sedimentation bin and the circular partition plate, the upper end of the liquid return pipe is communicated with the water pump, and the valve is rotatably connected to the upper portion of the liquid return pipe.

Preferably, the adding device comprises an L-shaped pipe, a sliding pipe, an L-shaped contact plate, a pipe spring and a feeding pipe, wherein the lower end of the L-shaped pipe is connected to the lower part of the drainage pipe, the sliding pipe is connected to the upper end of the L-shaped pipe in a sliding mode, a plurality of water outlets are formed in the lower part of the sliding pipe, the L-shaped contact plate is fixedly connected to the outer wall of the sliding pipe, the L-shaped contact plate is located above the precipitation bin, the pipe spring is connected between the L-shaped contact plate and the L-shaped pipe, the feeding pipe is connected to the upper end of the sliding pipe, and the feeding pipe is communicated with the sliding pipe.

Preferably, the circular partition plate further comprises rubber rings, and three rubber rings are fixedly connected to the outer wall of the circular partition plate.

The invention has the beneficial effects that:

1. the staff will need waste water of handling and flocculant be added together in the precipitation bin, the flocculant can react with waste water, separate debris and waste water, the precipitate can be piled up in precipitation bin bottom, the telescopic link of cylinder slowly contracts and can drive circular baffle and drain pan and move down, the liquid return pipe moves down and can extrude the slide bar and move down, and then open the precipitation bin, discharge the precipitate of precipitation bin lower part, circular baffle moves down simultaneously and can block up the precipitation bin for waste water can not flow in the precipitation reaction bin, just so can realize separating waste water and precipitate and with precipitate exhaust purpose, so that follow-up carries out secondary treatment to waste water.

2. After the sediment in the waste water is discharged, the water pump can pump the waste water which is separated in the sediment bin to the drain pipe through a plurality of drain holes on the water inlet pipe for discharging, meanwhile, the biocide in the feed pipe flows into the drain pipe, the biocide and the separated waste water can be uniformly mixed in the drain pipe and are discharged into the waste water bin through the hose, the biocide can kill microorganisms in the waste water, and the waste water is deodorized and sterilized, so that the purpose of multistage treatment of the waste water is achieved, and after the sediment and the waste water are separated, the waste water is purified, so that the waste water can be treated more thoroughly.

3. The staff can open the valve for in letting in the liquid return pipe to the waste water of some of letting in the drain pipe, evenly spill to sediment storehouse lower part through the drain pan again, avoid the sediment to block up the space between sediment storehouse and the circular cone piece, wash away sediment that sediment storehouse lower part is remaining simultaneously, accelerate the discharge of sediment.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partial perspective structure of a separation device according to the present invention.

FIG. 3 is a schematic cross-sectional perspective view of a separation device of the present invention.

Fig. 4 is a partially cut-away perspective view of the discharge device and the addition device of the present invention.

Fig. 5 is a schematic view of a partially cut-away perspective structure of the flushing device of the present invention.

Fig. 6 is an enlarged perspective view of fig. 5 a according to the present invention.

Fig. 7 is an enlarged perspective view of the structure of fig. 5B according to the present invention.

Fig. 8 is an enlarged perspective view of fig. 5C according to the present invention.

Fig. 9 is a schematic view of a first partial perspective view of the flushing device of the present invention.

Fig. 10 is a schematic view showing a partial perspective structure of the separating apparatus and the flushing apparatus of the present invention.

Reference numerals illustrate: 1_mounting rack, 2_sediment reaction bin, 3_sediment bin, 4_waste water bin, 5_through pipe, 61_cylinder, 62_water pump, 63_inlet pipe, 64_circular partition, 65_outlet pipe, 66_hose, 71_fixed sleeve, 72_U-shaped hollow pipe, 73_return spring, 74_conical block, 81_steel ball, 82_U-shaped plate, 83_support spring, 84_slide bar, 91_drain pan, 92_return pipe, 93_valve, 101_L pipe, 102_slide pipe, 103_L-shaped contact plate, 104_pipe spring, 105_inlet pipe, 11_rubber ring.

Detailed Description

Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, and the specific connection modes of the parts adopt conventional means such as mature bolts, rivets, welding, pasting and the like in the prior art, and the detailed description is omitted.

Example 1

1-10, including mounting bracket 1, sediment reaction storehouse 2, sediment storehouse 3, waste water storehouse 4, siphunculus 5, separator, exhaust apparatus, locking device, washing unit and interpolation device, sediment reaction storehouse 2 is through bolted connection in mounting bracket 1 one side, sediment reaction storehouse 2 is arranged in collecting the sediment in the waste water, sediment reaction storehouse 2 bottom has the discharge valve through bolted connection, sediment storehouse 3 passes through bolted connection at sediment reaction storehouse 2 top, sediment storehouse 3 is used for storing the waste water that needs to be handled, sediment storehouse 3 lower part is located sediment reaction storehouse 2, just sediment storehouse 3 communicates with sediment reaction storehouse 2, waste water storehouse 4 is kept away from one side of sediment reaction storehouse 2 through bolted connection in mounting bracket 1, waste water storehouse 4 is used for storing the waste water after the purification, waste water storehouse 4 bottom intercommunication has an overflow pipe, sediment reaction storehouse 2 upper portion and sediment storehouse 3 upper portion all are linked together and are had siphunculus 5, two on the siphunculus 5 all rotate on the connection have on the rotary switch, separator is arranged on sediment reaction storehouse 1 and is arranged in the exhaust apparatus for locking device, sediment apparatus is arranged on the exhaust apparatus for locking device, the exhaust apparatus is arranged on the exhaust apparatus.

The separating device comprises an air cylinder 61, a water pump 62, a water inlet pipe 63, a circular partition plate 64, a water drain pipe 65 and a hose 66, wherein the air cylinder 61 is connected to the mounting frame 1 through bolts, the water pump 62 is fixedly connected to a telescopic rod of the air cylinder 61, the water pump 62 is communicated with the upper ends of the water inlet pipe 63 and the water drain pipe 65, the lower portion of the water inlet pipe 63 penetrates through the sedimentation bin 3, a plurality of water drain holes are formed in the lower portion of the water inlet pipe 63, the circular partition plate 64 is fixedly connected to the bottom end of the water inlet pipe 63, the hose 66 is fixedly connected to the lower end of the water drain pipe 65, the hose 66 is made of soft materials, and the hose 66 is communicated with the water drain pipe 65.

The discharging device comprises a fixed sleeve 71, a U-shaped hollow tube 72, a return spring 73 and a conical block 74, wherein two fixed sleeves 71 are welded on the outer wall of the lower part of the sedimentation bin 3, the U-shaped hollow tube 72 is connected between the two fixed sleeves 71 in a sliding mode, the U-shaped hollow tube 72 is of a hollow structure, round holes are formed in the left side and the right side of the U-shaped hollow tube 72, the U-shaped hollow tube 72 is of a U-shaped structure, the two fixed sleeves 71 and the U-shaped hollow tube 72 are respectively connected with the return spring 73 through hooks, the return spring 73 is sleeved on the U-shaped hollow tube 72, the conical block 74 is fixedly connected onto the U-shaped hollow tube 72, the conical block 74 is positioned in the sedimentation bin 3, the conical block 74 is in contact with the sedimentation bin 3, and the conical block 74 is used for blocking the sedimentation bin 3.

The locking device comprises steel balls 81, a U-shaped plate 82, supporting springs 83 and sliding rods 84, wherein the steel balls 81 are arranged on the left side and the right side in the U-shaped hollow tube 72, the steel balls 81 are located in round holes of the U-shaped hollow tube 72, the steel balls 81 are in contact with the fixed sleeve 71, the U-shaped plate 82 is arranged inside the U-shaped hollow tube 72, two ends of the U-shaped plate 82 are respectively in contact with the steel balls 81, two supporting springs 83 are connected between the U-shaped plate 82 and the U-shaped hollow tube 72 through hooks, the sliding rods 84 are fixedly connected to the U-shaped plate 82, the sliding rods 84 penetrate through the U-shaped hollow tube 72, and the sliding rods 84 are connected with the conical blocks 74 in a sliding mode.

The flushing device comprises a drain pan 91, a liquid return pipe 92 and a valve 93, wherein the drain pan 91 is fixedly connected to the bottom of the circular partition plate 64, the lower end of the liquid return pipe 92 is connected with the drain pan 91, the liquid return pipe 92 is communicated with the drain pan 91, the liquid return pipe 92 penetrates through the sedimentation bin 3 and the circular partition plate 64, the upper end of the liquid return pipe 92 is communicated with the water pump 62, and the valve 93 is rotatably connected to the upper portion of the liquid return pipe 92.

The adding device comprises an L-shaped pipe 101, a sliding pipe 102, an L-shaped contact plate 103, a pipe spring 104 and a feeding pipe 105, wherein the lower end of the L-shaped pipe 101 is connected to the lower portion of the drain pipe 65, the sliding pipe 102 is connected to the inner portion of the upper end of the L-shaped pipe 101 in a sliding mode, a plurality of water outlet holes are formed in the lower portion of the sliding pipe 102, the L-shaped contact plate 103 is fixedly connected to the outer wall of the sliding pipe 102, the L-shaped contact plate 103 is located above the sedimentation bin 3, the L-shaped contact plate 103 is of an L-shaped structure, the pipe spring 104 is connected between the L-shaped contact plate 103 and the L-shaped pipe 101 through hooks, the pipe spring 104 is sleeved on the sliding pipe 102, the feeding pipe 105 is connected to the upper end of the sliding pipe 102, and the feeding pipe 105 is communicated with the sliding pipe 102.

In actual operation, the worker rotates the switch valve of the through pipe 5 on the sedimentation bin 3 to open the through pipe 5 on the sedimentation bin 3, then adds the wastewater to be treated and the flocculating agent into the sedimentation bin 3 together through the through pipe 5 on the sedimentation bin 3, reversely rotates the switch valve of the through pipe 5 on the sedimentation bin 3 to close the through pipe 5 on the sedimentation bin 3, and then introduces the biocide into the feed pipe 105, because the L-shaped pipe 101 blocks the water outlet of the sliding pipe 102, the biocide does not flow into the drain pipe 65, the wastewater in the sedimentation bin 3 reacts with the wastewater, the flocculating agent aggregates colloidal particles in the wastewater into massive precipitates, thereby separating sundries from the wastewater, the precipitates are accumulated around the conical block 74 under the action of gravity, the worker starts the cylinder 61 immediately, and adjusts the telescopic rod of the cylinder 61 to shrink slowly, the slow contraction of the telescopic rod of the air cylinder 61 can drive the water pump 62 to slowly move downwards, the slow downward movement of the water pump 62 can drive the water inlet pipe 63, the water outlet pipe 65 and the liquid return pipe 92 to slowly move downwards, the slow downward movement of the water inlet pipe 63 can drive the circular partition plate 64 and the water outlet disc 91 to slowly move downwards, the slow downward movement of the water outlet pipe 65 can drive the L-shaped pipe 101 to slowly move downwards, the sliding pipe 102, the L-shaped contact plate 103 and the material inlet pipe 105 can move downwards under the action of gravity, the slow downward movement of the liquid return pipe 92 can drive the valve 93 to slowly move downwards, the downward movement of the water outlet disc 91 can contact with the sliding rod 84 and press the sliding rod 84 to move downwards, the downward movement of the sliding rod 84 can drive the U-shaped plate 82 to move downwards, the supporting spring 83 is compressed, the downward movement of the U-shaped plate 82 can not push the steel balls 81 on the left side and the right side any more, and the waste water in the sedimentation bin 3 has weight, the downward pressure is applied to the conical block 74 and the U-shaped hollow tube 72, when the U-shaped plate 82 is not propped against the steel balls 81, the steel balls 81 are extruded and rolled into the U-shaped hollow tube 72 by the fixing sleeve 71, the U-shaped hollow tube 72 is not clamped, the U-shaped hollow tube 72 and the conical block 74 can move downwards under the action of gravity, the conical block 74 is not blocked up the sedimentation bin 3, meanwhile, the circular partition plate 64 moves downwards to be in contact with the inner wall of the lower part of the sedimentation bin 3, the sedimentation bin 3 is blocked up, so that wastewater cannot flow into the sedimentation reaction bin 2, the purpose of separating wastewater from sediment can be achieved, then a worker rotates a switch valve of a through tube 5 positioned on the sedimentation reaction bin 2, the through tube 5 positioned on the sedimentation reaction bin 2 is opened, the purpose of balancing the air pressure in the sedimentation reaction bin 2 is achieved, sediment in the lower part of the sedimentation bin 3 and the circular partition plate 64 can be discharged into the sedimentation reaction bin 2, the sediment in the sedimentation bin 2 is collected by the sedimentation reaction bin 2, the purpose of discharging sediment in the wastewater, when the sedimentation bin 2 is fully discharged, the sediment valve is turned down, and the bottom of the sedimentation bin 2 is turned down, and the sediment bin 2 is turned down.

The L-shaped contact plate 103 moves downwards to be in contact with the outer wall of the sedimentation bin 3, the L-shaped contact plate 103 is extruded by the sedimentation bin 3, the L-shaped contact plate 103 does not move downwards any more, the tube spring 104 is stretched, the L-shaped tube 101 continues to move downwards to be free of blocking the water outlet hole of the sliding tube 102, the biocide in the feed tube 105 can flow into the drain tube 65 through the L-shaped tube 101 and the sliding tube 102, at the moment, the telescopic rod of the air cylinder 61 just contracts completely, the round partition plate 64 also just moves downwards to block the sedimentation bin 3, the water pump 62 is started by a worker, the water pump 62 can pump separated waste water in the sedimentation bin 3 to the drain tube 65 through a plurality of drain holes on the water inlet tube 63, the biocide and the separated waste water can be evenly mixed in the drain tube 65 and are discharged into the waste water bin 4 through the hose 66, the biocide can kill microorganisms in the waste water, the aim of purifying the waste water can be achieved, the purified waste water can be discharged through the overflow tube of the waste water bin 4, the valve 93 can be opened by the worker, a part of the drain tube 92 is led into the drain tube 65 to the sedimentation bin 3, the sediment can be prevented from being discharged through the drain down part of the drain pipe 92, and the sediment can be prevented from being discharged to the sediment bin 3, and the sediment can be discharged to the sediment portion is prevented from being discharged to the sediment portion 3, and the sediment portion is completely, and the sediment is discharged to the sediment portion from the sediment, and the sediment is discharged to the sediment, and after sediment is discharged to the sediment, and the sediment is discharged to the sediment, and to the sediment, and is discharged to the sediment.

When the wastewater in the sedimentation bin 3 is pumped out completely, a worker turns off the water pump 62, adjusts the telescopic rod of the air cylinder 61 to extend quickly, the telescopic rod of the air cylinder 61 extends quickly to drive the water pump 62 to reset quickly and upwards, the water pump 62 resets quickly and upwards to drive the water inlet pipe 63, the water outlet pipe 65 and the liquid return pipe 92 to reset quickly and upwards, the water inlet pipe 63 resets quickly and upwards to drive the circular partition plate 64 and the water outlet disc 91 to reset quickly and upwards, the circular partition plate 64 resets quickly and upwards to be separated from the sedimentation bin 3, the water outlet disc 91 resets quickly and upwards to be separated from the sliding rod 84, the reset spring 73 resets and drives the U-shaped hollow pipe 72 and the conical block 74 to reset upwards, the supporting spring 83 resets and drives the U-shaped plate 82 and the slide bar 84 to reset upwards, the U-shaped plate 82 resets upwards and drives the two steel balls 81 to move towards the direction away from each other and to contact with the fixed sleeve 71 again, the steel balls 81 can clamp the U-shaped hollow tube 72, the drain pipe 65 resets fast and drives the L-shaped tube 101 to reset fast upwards, the L-shaped tube 101 resets fast and drives the sliding tube 102, the L-shaped contact plate 103 and the feed pipe 105 to reset fast upwards through the tube spring 104, the L-shaped contact plate 103 resets and breaks away from contact with the sedimentation bin 3, the tube spring 104 resets and drives the sliding tube 102 and the L-shaped contact plate 103 to reset downwards, the sliding tube 102 resets downwards and is blocked by the L-shaped tube 101 again, and then the air cylinder 61 is closed by a worker.

Example 2

On the basis of the embodiment 1, as shown in fig. 10, the device further comprises rubber rings 11, and three rubber rings 11 are fixedly connected to the outer wall of the circular partition plate 64.

The circular partition plate 64 can drive the rubber ring 11 to move downwards when moving downwards, the rubber ring 11 can also contact the inner wall of the sedimentation bin 3 when the circular partition plate 64 contacts the inner wall of the sedimentation bin 3, and the rubber ring 11 can enable the circular partition plate 64 to more thoroughly block the sedimentation bin 3 so as to prevent waste water from flowing into the sediment reaction bin 2; the circular partition plate 64 will drive the rubber ring 11 to reset upwards when reset upwards.

The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wastewater treatment device, its characterized in that includes mounting bracket (1), sediment reaction storehouse (2), sediment storehouse (3), waste water storehouse (4), siphunculus (5), separator, discharging device, locking device, washing unit and interpolation device, sediment reaction storehouse (2) fixedly connected with is in mounting bracket (1) one side, sediment reaction storehouse (2) bottom is through bolted connection there being discharge valve, sediment storehouse (3) fixedly connected with is at sediment reaction storehouse (2) top, sediment storehouse (3) lower part is located in sediment reaction storehouse (2), just sediment storehouse (3) and sediment reaction storehouse (2) intercommunication, waste water storehouse (4) fixedly connected with is in one side of mounting bracket (1) keeping away from sediment reaction storehouse (2), waste water storehouse (4) bottom intercommunication has an overflow pipe, sediment reaction storehouse (2) upper portion and sediment storehouse (3) upper portion all are linked with siphunculus (5), two on-off valve is connected with in the equal rotation on sediment reaction storehouse (3), separator is established on discharging device, separator establishes on the discharging device on the separator;

the separating device comprises a cylinder (61), a water pump (62), a water inlet pipe (63), a circular partition plate (64), a drain pipe (65) and a hose (66), wherein the cylinder (61) is fixedly connected to the mounting frame (1), the water pump (62) is fixedly connected to a telescopic rod of the cylinder (61), the water pump (62) is communicated with the upper ends of the water inlet pipe (63) and the drain pipe (65), the lower part of the water inlet pipe (63) penetrates through the sedimentation bin (3), a plurality of drain holes are formed in the lower part of the water inlet pipe (63), the circular partition plate (64) is fixedly connected to the bottom end of the water inlet pipe (63), the hose (66) is fixedly connected to the lower end of the drain pipe (65), the hose (66) is made of soft materials, and the hose (66) is communicated with the drain pipe (65);

the discharging device comprises a fixed sleeve (71), a U-shaped hollow pipe (72), a reset spring (73) and a conical block (74), wherein two fixed sleeves (71) are fixedly connected to the outer wall of the lower part of the sedimentation bin (3), the U-shaped hollow pipe (72) is connected between the two fixed sleeves (71) in a sliding mode, the U-shaped hollow pipe (72) is of a hollow structure, round holes are formed in the left side and the right side, the reset spring (73) is respectively connected between the two fixed sleeves (71) and the U-shaped hollow pipe (72), the conical block (74) is fixedly connected to the U-shaped hollow pipe (72), the conical block (74) is located in the sedimentation bin (3), and the conical block (74) is in contact with the sedimentation bin (3);

the locking device comprises steel balls (81), a U-shaped plate (82), supporting springs (83) and sliding rods (84), wherein the steel balls (81) are arranged on the left side and the right side in the U-shaped hollow tube (72), the steel balls (81) are located in round holes of the U-shaped hollow tube (72), the steel balls (81) are in contact with a fixed sleeve (71), the U-shaped plate (82) is placed inside the U-shaped hollow tube (72), the two ends of the U-shaped plate (82) are respectively in contact with the steel balls (81), two supporting springs (83) are connected between the U-shaped plate (82) and the U-shaped hollow tube (72), the sliding rods (84) are fixedly connected to the U-shaped plate (82), and the sliding rods (84) penetrate through the U-shaped hollow tube (72) and are connected with conical blocks (74) in a sliding mode.

2. The wastewater treatment device according to claim 1, wherein the flushing device comprises a drain pan (91), a liquid return pipe (92) and a valve (93), the drain pan (91) is fixedly connected to the bottom of the circular partition plate (64), the lower end of the liquid return pipe (92) is connected with the drain pan (91), the liquid return pipe (92) is communicated with the drain pan (91), the liquid return pipe (92) penetrates through the sedimentation bin (3) and the circular partition plate (64), the upper end of the liquid return pipe (92) is communicated with the water pump (62), and the valve (93) is rotatably connected to the upper portion of the liquid return pipe (92).

3. The wastewater treatment device according to claim 2, wherein the adding device comprises an L-shaped pipe (101), a sliding pipe (102), an L-shaped contact plate (103), a pipe spring (104) and a feeding pipe (105), the lower end of the L-shaped pipe (101) is connected to the lower portion of the water discharging pipe (65), the sliding pipe (102) is slidingly connected to the inner portion of the upper end of the L-shaped pipe (101), a plurality of water outlet holes are formed in the lower portion of the sliding pipe (102), the L-shaped contact plate (103) is fixedly connected to the outer wall of the sliding pipe (102), the L-shaped contact plate (103) is located above the precipitation bin (3), the pipe spring (104) is connected between the L-shaped contact plate (103) and the L-shaped pipe (101), the feeding pipe (105) is connected to the upper end of the sliding pipe (102), and the feeding pipe (105) is communicated with the sliding pipe (102).

4. A wastewater treatment device according to claim 3, further comprising rubber rings (11), wherein three rubber rings (11) are fixedly connected to the outer wall of the circular partition plate (64).