A wastewater treatment system based on concrete and its operation method

Abstract

The present invention discloses a wastewater treatment system made of concrete and an operation method thereof, comprising a sewage purification pool, a liquid medicine tank is arranged on the right side of the sewage purification pool, an isolation inner cylinder and a chassis cylinder are fixedly connected to the bottom of the inner cavity of the sewage purification pool from the inside to the outside in sequence, and an outer isolation wall is fixedly connected between the isolation inner cylinder and the sewage purification pool, and the outer isolation wall and the top of the isolation inner cylinder are both provided with a notch, and a U-shaped metal frame is fixedly connected inside the notch, and the present invention relates to the field of wastewater treatment technology. The wastewater treatment system made of concrete and an operation method thereof divide the outer space of the isolation inner cylinder into eight spaces by arranging an outer isolation wall, and the depth forms a slope, so that the upper sewage can always keep a slow flow inside, and then can be filtered layer by layer, with good filtering effect, and the filter plate is easy to disassemble for cleaning, easy to use, and the overall structure is made of concrete, which is convenient for construction.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a wastewater treatment system based on concrete and an operating method thereof. Background Art

[0002] Wastewater treatment is to treat wastewater using physical, chemical and biological methods to purify wastewater, reduce pollution, and even achieve wastewater recycling and reuse, so as to make full use of water resources. Wastewater refers to the general term for water discharged during residents' activities and runoff rainwater. It includes domestic sewage, industrial wastewater, and other unused water such as initial rain runoff into drainage pipes. It generally refers to water that cannot be recycled after certain technical treatment or water that cannot meet certain standards for purification after primary pollution. Many types of pollutants are generated in industrial production, and the types and concentrations of pollutants generated by different industries are significantly different. Including electroplating wastewater and heavy metal wastewater. Treatment methods include physical treatment, chemical treatment and biological treatment.

[0003] Some existing processing plants have sewage pools to store sewage, and add flocculants and other liquid chemicals to quickly precipitate impurities in the sewage. However, natural sedimentation is relatively slow, and impurities are difficult to fully separate from the sewage. At the same time, the treatment of sewage in sewage pools in existing factories is generally done manually by adding chemicals based on experience. If too little is added, the purification is incomplete, and if too much is added, it will be wasted. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a wastewater treatment system based on concrete and an operating method thereof, which solves the problem that the natural precipitation of impurities in the sewage is slow and the impurities are difficult to fully separate from the sewage. At the same time, the treatment of sewage in sewage pools in existing factories is generally done by manually adding chemicals based on experience. If too little is added, the purification is not thorough, and if too much is added, it is wasted.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wastewater treatment system made of concrete, including a sewage purification tank, a liquid medicine tank is arranged on the right side of the sewage purification tank, the bottom of the inner cavity of the sewage purification tank is fixedly connected with an isolation inner cylinder and a chassis cylinder from the inside to the outside in sequence, and an outer isolation wall is fixedly connected between the isolation inner cylinder and the sewage purification tank, the outer isolation wall and the top of the isolation inner cylinder are both provided with a notch, the inside of the notch is fixedly connected with a U-shaped metal frame, and the inner surface of the U-shaped metal frame is clamped with a filter plate, the front and rear sides of the filter plate are fixedly connected with rubber rings, the isolation inner cylinder is fixedly connected with an inner isolation wall between the chassis cylinder, the outer isolation wall and the inner isolation wall are both provided with eight, and the inner and outer spaces of the isolation inner cylinder are equalized to eight, and the depths of the eight cavities on the same side are gradually deepened.

[0008] A hollow plate is fixedly connected to the bottom of the inner cavity of the sewage purification tank and located between the outside of the isolation inner tube and the outer isolation wall, a strip groove is opened on the top of the hollow plate, a first water pump is fixedly connected to the bottom of the inner cavity of the sewage purification tank and located inside the chassis tube, the water inlet of the first water pump is connected to the first water pumping pipe, and the top of the first water pumping pipe is connected to the first water diversion box, a sewage suction pipe is connected between the side of the first water diversion box and the top of the hollow plate, the water outlet of the first water pump is connected to the first water outlet pipe, and the top of the first water outlet pipe is connected to the second water diversion box, the side of the second water diversion box is connected to a return pipe, and one end of the return pipe passes through the chassis tube and extends to the cavity between the chassis tube and the isolation inner tube.

[0009] Preferably, a support block is fixedly connected to the upper inner wall of the chassis tube, and a support plate is movably connected to the top of the support block, a battery is movably connected to the top of the support plate, a wiring harness hole is opened in the center of the support plate, and a solar panel is fixedly connected to the top of the inner isolation wall through a rack.

[0010] Preferably, a transverse partition is fixedly connected to the inside of the medicine liquid tank, an upper partition is fixedly connected between the top of the transverse partition and the inner wall of the medicine liquid tank, and a lower partition is fixedly connected between the bottom of the transverse partition and the inner wall of the medicine liquid tank, and a fixing plate and a retaining ring are fixedly connected between the left side of the upper partition and the inner wall of the medicine liquid tank from top to bottom in sequence.

[0011] Preferably, an electric push rod is fixedly connected to the top of the fixed plate, the bottom end of the electric push rod passes through the fixed plate and is fixedly connected to a piston, and the surface of the piston is slidably connected to the inner wall of the medicine liquid tank and the left side of the upper partition, a one-way valve is passed through the inside of the piston, a pipette is connected to the right side of the upper partition and below the fixed plate, and the bottom end of the pipette extends to the top of the transverse partition, a sealing cover is fixedly connected to the right side of the top of the transverse partition, and a connecting pipe is connected between the left side of the sealing cover and the bottom of the upper partition, and an injection tube is passed through the inside of the transverse partition and inside the sealing cover.

[0012] Preferably, a second water pump is fixedly connected to the bottom of the inner cavity of the medicine liquid tank and located on the left side of the lower partition, the water inlet of the second water pump is connected to a second water pumping pipe, one end of the second water pumping pipe passes through the medicine liquid tank and extends to the bottom of the deepest cavity outside the isolation inner tube, the water outlet of the second water pump is connected to a second water outlet pipe, the top end of the second water outlet pipe passes through the top of the lower partition and extends to the right side of the lower partition, the bottom of the back side of the medicine liquid tank is connected to a third water outlet pipe, one end of the third water outlet pipe extends to above the shallowest cavity outside the isolation inner tube.

[0013] Preferably, a control panel is fixedly connected to the front of the medicine liquid tank, a liquid level tube is connected to the bottom of the front of the medicine liquid tank, a liquid level detector is fixedly connected to the inside of the liquid level tube, and the top of the liquid level detector extends to the top of the liquid level tube.

[0014] Preferably, the output end of the solar panel is electrically connected to the input end of the battery through a wire, the output end of the battery is electrically connected to the input ends of the first water pump and the control panel respectively through a wire, the output end of the control panel is electrically connected to the input ends of the second water pump and the electric push rod respectively through a wire, and the control panel and the liquid level detector are bidirectionally connected through a wire.

[0015] Preferably, the control panel includes control buttons, a display screen, an input / output serial port and a digital circuit board, the digital circuit board includes a processor, a data acquisition module, a data comparison module, a liquid level alarm module and a timing module, the output end of the control button is electrically connected to the input end of the display screen, the output end of the processor is electrically connected to the input ends of the data acquisition module, the data comparison module and the display screen respectively, the output end of the data acquisition module is electrically connected to the input end of the data comparison module, the output end of the data comparison module is electrically connected to the input end of the liquid level alarm module, the output end of the liquid level alarm module is electrically connected to the input end of the processor and the timing module respectively, and the output ends of the timing module and the input / output serial port are both electrically connected to the input end of the processor.

[0016] The present invention also discloses an operation method of a wastewater treatment system made of concrete, which specifically comprises the following steps:

[0017] Step 1: During the working process, the solar panel converts solar energy into electricity and stores it in the battery for power supply. Before use, the flocculant is first poured into the liquid medicine tank. The sewage is first introduced into the shallowest cavity among the eight cavities outside the isolation inner cylinder in the sewage purification tank. The sewage passes through the filter plate on the outer isolation wall to filter out some impurities and then flows into the shallower cavity on one side. Then it flows layer by layer for filtration. At the same time, the second water pump extracts the sewage in the deepest cavity through the second pumping pipe, and then pumps the sewage into the cavity in the lower right corner of the liquid medicine tank. Part of the sewage enters the liquid level pipe, and the liquid level detector performs liquid level detection and transmits the value to the control panel for detection;

[0018] Step 2: After receiving the data, the processor in the control panel transmits it to the data acquisition module, and then compares the data through the data comparison module. If the liquid level reaches the specified level, a feedback signal is sent to the processor, and the processor controls the second water pump to stop working, and starts the timing module for timing, and starts the electric push rod to press the piston, and press the liquid in the cavity below it into the sealing cover through the connecting pipe, and then inject it into the sewage in the cavity below through the injection tube for full mixing. During the piston descent, the negative pressure can be used to make the suction tube draw a certain amount of liquid medicine into the cavity above the piston again. During the piston resetting process, the one-way valve on the piston automatically opens, and the liquid medicine above it flows to the bottom through the one-way valve, waiting for injection again. When the timing module reaches the specified time, a feedback signal is sent to the processor, and then the valve on the third outlet pipe is controlled to open, and the sewage mixed with liquid medicine in the cavity below is discharged back to the sewage purification tank, and then the second water pump is started again;

[0019] Step three: During the working process, the first water pump is turned on in real time, and the impurities precipitated from the sewage in the sewage purification tank sink to the hollow plate. The first water pump draws water from the hollow plate through the first pumping pipe, the first water distribution box and the sewage suction pipe, and then uses the strip groove to absorb the sediment on its surface, and then discharges the sediment through the first water outlet pipe, the second water distribution box and the return pipe into the cavity between the isolation inner tube and the chassis tube, and then concentrates the sediment in the cavity and waits for later extraction.

[0020] Preferably, in step 2, the electric push rod pushes the piston quickly when pressing it down, and resets slowly when resetting.

[0021] (III) Beneficial effects

[0022] The present invention provides a wastewater treatment system based on concrete and an operation method thereof. Compared with the prior art, it has the following beneficial effects:

[0023] (1) The wastewater treatment system made of concrete and its operation method are characterized by fixing an isolation inner cylinder and a chassis cylinder in sequence from the inside to the outside at the bottom of the inner cavity of the sewage purification tank, and fixing an outer isolation wall between the isolation inner cylinder and the sewage purification tank, and notches are opened on the tops of the outer isolation wall and the isolation inner cylinder, and a U-shaped metal frame is fixedly connected inside the notch, and a filter plate is clamped on the inner surface of the U-shaped metal frame, and rubber rings are fixedly connected on the front and back sides of the filter plate, and an inner isolation wall is fixedly connected between the isolation inner cylinder and the chassis cylinder, and eight outer isolation walls and eight inner isolation walls are provided, and the inner and outer spaces of the isolation inner cylinder are evenly divided into eight, and the depths of the eight cavities on the same side are gradually deepened, and the outer isolation wall is provided to divide the outer space of the isolation inner cylinder into eight spaces, and the depths form a slope, so that the upper sewage can always keep flowing slowly inside, and then can be filtered layer by layer, and the filtering effect is good, and the filter plate is easy to disassemble for cleaning, and is convenient to use, and the overall structure is made of concrete, and the construction is convenient.

[0024] (2) The wastewater treatment system made of concrete and its operation method are characterized in that a hollow plate is fixedly connected at the bottom of the inner cavity of the sewage purification tank and located between the outer side of the isolation inner tube and the outer isolation wall, and a strip groove is opened on the top of the hollow plate. A first water pump is fixedly connected at the bottom of the inner cavity of the sewage purification tank and located inside the chassis tube. The water inlet of the first water pump is connected to a first water pumping pipe, and the top end of the first water pumping pipe is connected to a first water diversion box. A sewage suction pipe is connected between the side of the first water diversion box and the top of the hollow plate. The water outlet of the first water pump is connected to a first water outlet pipe, and the top end of the first water outlet pipe is connected to a second water diversion box. The side of the second water diversion box is connected to a return pipe, and one end of the return pipe passes through the chassis tube and extends to the cavity between the chassis tube and the isolation inner tube. The first water pump is set to extract the sewage in the hollow plate outside the isolation inner tube, and then indirectly extract the sediment thereon, and then discharge it to the inside, which is convenient for subsequent centralized treatment. In addition, the filter plate on the isolation inner tube can achieve a secondary filtration effect. Compared with an ordinary sewage tank, the purification effect is better.

[0025] (3) The wastewater treatment system made of concrete and its operation method are as follows: an electric push rod is fixedly connected to the top of the fixed plate, the bottom end of the electric push rod passes through the fixed plate and is fixedly connected to a piston, and the surface of the piston is slidably connected to the inner wall of the medicine liquid tank and the left side of the upper partition, a one-way valve is passed through the inside of the piston, a suction pipe is connected to the right side of the upper partition and located below the fixed plate, and the bottom end of the suction pipe extends to the top of the transverse partition, a sealing cover is fixedly connected to the right side of the top of the transverse partition, and a connecting pipe is connected between the left side of the sealing cover and the bottom of the upper partition, an injection tube is passed through the inside of the transverse partition and located inside the sealing cover, and a second water pump is fixedly connected to the bottom of the inner cavity of the medicine liquid tank and located on the left side of the lower partition. The water inlet of the second water pump is connected to a second pumping pipe, one end of which penetrates the medicine liquid tank and extends to the bottom of the deepest cavity outside the isolation inner tube; the water outlet of the second water pump is connected to a second outlet pipe, the top of which penetrates the top of the lower partition and extends to the right side of the lower partition; the bottom of the back side of the medicine liquid tank is connected to a third outlet pipe, one end of which extends to the top of the shallowest cavity outside the isolation inner tube; the sewage is pumped into a cavity of fixed volume in the medicine liquid tank by setting a second water pump, and a certain amount of medicine is added, the sewage is divided according to unit volume, and the medicine is added in a certain amount, which can more accurately grasp the addition amount and reduce the waste rate; when adding the medicine, the injection tube can be used to quickly inject it into the sewage, which is convenient for rapid mixing, and the structure is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view of the overall structure of the present invention;

[0027] Figure 2 A top view of the sewage purification tank structure of the present invention;

[0028] Figure 3 It is a cross-sectional view of the chassis barrel structure of the present invention;

[0029] Figure 4 For the present invention Figure 1 A magnified view of the local structure at point A in the middle;

[0030] Figure 5 It is a three-dimensional diagram of the U-shaped metal frame structure of the present invention;

[0031] Figure 6 A three-dimensional diagram of the filter plate structure of the present invention;

[0032] Figure 7 is a three-dimensional diagram of the support plate structure of the present invention;

[0033] Figure 8 It is a cross-sectional view of the liquid medicine tank structure of the present invention;

[0034] Fig. 9 It is a front view of the liquid medicine tank structure of the present invention;

[0035] Fig.10 It is a system principle block diagram of the present invention;

[0036] Fig.11 The figure is a functional block diagram of the control panel of the present invention.

[0037] In the figure, 1-sewage purification tank, 2-liquid tank, 3-isolation inner cylinder, 4-chassis cylinder, 5-external isolation wall, 6-filter plate, 7-rubber ring, 8-inner isolation wall, 9-hollow plate, 10-strip groove, 11-first water pump, 12-first water pumping pipe, 13-first water distribution box, 14-sewage suction pipe, 15-first water outlet pipe, 16-second water distribution box, 17-return pipe, 18-support block, 19-support plate, 20-battery, 21-wiring harness hole, 22-solar cell panel, 23-transverse partition, 24-upper partition, 25-lower partition, 26-fixed plate, 2 7- retaining ring, 28- electric push rod, 29- piston, 30- suction tube, 31- sealing cover, 32- connecting pipe, 33- injection tube, 34- second water pump, 35- second water pumping pipe, 36- second water outlet pipe, 37- third water outlet pipe, 38- control panel, 39- liquid level tube, 40- liquid level detector, 41- control button, 42- display screen, 43- input / output serial port, 44- digital circuit board, 45- processor, 46- data acquisition module, 47- data comparison module, 48- liquid level alarm module, 49- timing module, 50- U-shaped metal frame. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments 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.

[0039] See also Figure 1-11The embodiment of the present invention provides a technical solution: a wastewater treatment system made of concrete, including a sewage purification tank 1, the sewage purification tank 1, the isolation inner tube 3, the outer isolation wall 5 and the inner isolation wall 8 are all supported by concrete and buried underground to replace the traditional sewage tank. A liquid medicine tank 2 is arranged on the right side of the sewage purification tank 1, and a transverse partition 23 is fixedly connected inside the liquid medicine tank 2, an upper partition 24 is fixedly connected between the top of the transverse partition 23 and the inner wall of the liquid medicine tank 2, and a lower partition 25 is fixedly connected between the bottom of the transverse partition 23 and the inner wall of the liquid medicine tank 2, a fixed plate 26 and a retaining ring 27 are fixedly connected between the left side of the upper partition 24 and the inner wall of the liquid medicine tank 2 from top to bottom, and an electric push rod 28 is fixedly connected to the top of the fixed plate 26, The bottom end of the electric push rod 28 passes through the fixed plate 26 and is fixedly connected to a piston 29, and the surface of the piston 29 is slidably connected to the inner wall of the medicine liquid tank 2 and the left side of the upper partition 24. A one-way valve is penetrated and connected inside the piston 29. A suction pipe 30 is connected to the right side of the upper partition 24 and below the fixed plate 26, and the bottom end of the suction pipe 30 extends to the top of the transverse partition 23. A sealing cover 31 is fixedly connected to the right side of the top of the transverse partition 23, and a connecting pipe 32 is connected between the left side of the sealing cover 31 and the bottom of the upper partition 24. An injection tube 33 is penetrated and connected inside the transverse partition 23 and inside the sealing cover 31. A second water pump 34 is fixedly connected to the bottom of the inner cavity of the medicine liquid tank 2 and on the left side of the lower partition 25. The inlet of the second water pump 34 The water inlet is connected to a second water pumping pipe 35, one end of which penetrates the medicine liquid tank 2 and extends to the bottom of the deepest cavity outside the isolation inner tube 3. The water outlet of the second water pump 34 is connected to a second water outlet pipe 36, the top of which penetrates the top of the lower partition 25 and extends to the right side of the lower partition 25. The bottom of the back of the medicine liquid tank 2 is connected to a third water outlet pipe 37, one end of which extends to the top of the shallowest cavity outside the isolation inner tube 3. By setting the second water pump 34 to pump sewage into a cavity of fixed volume in the medicine liquid tank 2 and adding a certain amount of medicine, the sewage is divided according to unit volume, and the medicine is added in a certain amount, so that the amount of addition can be more accurately grasped, the waste rate can be reduced, and the injection tube 33 can be used to quickly inject the medicine into the sewage when adding the medicine. , easy to mix quickly, simple and practical structure, the front of the medicine liquid tank 2 is fixedly connected with a control panel 38, the bottom of the front of the medicine liquid tank 2 is connected with a liquid level tube 39, the inside of the liquid level tube 39 is fixedly connected with a liquid level detector 40, and the top of the liquid level detector 40 extends to the top of the liquid level tube 39, the bottom of the inner cavity of the sewage purification tank 1 is fixedly connected with an isolation inner cylinder 3 and a chassis cylinder 4 from the inside to the outside, the chassis cylinder 4 is a plastic cylinder with good waterproof performance, and an outer isolation wall 5 is fixedly connected between the isolation inner cylinder 3 and the sewage purification tank 1, the upper part of the inner wall of the chassis cylinder 4 is fixedly connected with a support block 18, and the top of the support block 18 is movably connected with a support plate 19, the top of the support plate 19 is movably connected with a battery 20, and the center of the support plate 19 is provided with a harness hole 21,The top of the inner isolation wall 8 is fixedly connected with a solar panel 22 through a frame, the output end of the solar panel 22 is electrically connected to the input end of the battery 20 through a wire, the output end of the battery 20 is electrically connected to the first water pump 11 and the input end of the control panel 38 through a wire, the output end of the control panel 38 is electrically connected to the second water pump 34 and the input end of the electric push rod 28 through a wire, the control panel 38 and the liquid level detector 40 are bidirectionally connected through a wire, and the control panel 38 includes a control button 41, a display screen 42, an input / output serial port 43 and The digital circuit board 44 includes a processor 45, a data acquisition module 46, a data comparison module 47, a liquid level alarm module 48 and a timing module 49. The processor 45 is an ARM9 series processor, and the timing module 49 is a YYC-4S model timing module. The output end of the control button 41 is electrically connected to the input end of the display screen 42. The output end of the processor 45 is electrically connected to the input end of the data acquisition module 46, the data comparison module 47 and the display screen 42 respectively. The output end of the data acquisition module 46 is electrically connected to the input end of the data comparison module 47. The output end of the data comparison module 47 is electrically connected to the input end of the liquid level alarm module 48, and the output end of the liquid level alarm module 48 is electrically connected to the input end of the processor 45 and the timing module 49 respectively. The output end of the timing module 49 and the input / output serial port 43 are both electrically connected to the input end of the processor 45. The outer isolation wall 5 and the top of the isolation inner tube 3 are both provided with a gap, and the inside of the gap is fixedly connected with a U-shaped metal frame 50, and the inner surface of the U-shaped metal frame 50 is clamped with a filter plate 6. The filter plate 6 gradually decreases in height as the depth of the eight cavities increases, and the front and rear sides of the filter plate 6 The rubber ring 7 is fixedly connected, and the inner isolation wall 8 is fixedly connected between the isolation inner cylinder 3 and the chassis cylinder 4. There are eight outer isolation walls 5 and eight inner isolation walls 8, and the inner and outer spaces of the isolation inner cylinder 3 are equalized to eight. The depth of the eight cavities on the same side gradually deepens. The outer isolation wall 5 is set to divide the outer space of the isolation inner cylinder 3 into eight spaces, and its depth forms a slope, so that the upper sewage can always keep a slow flow inside, and then it can be filtered layer by layer, with good filtering effect, and the filter plate 6 is easy to disassemble for cleaning, easy to use, and the overall structure is made of concrete, which is convenient for construction.

[0040] A hollow plate 9 is fixedly connected to the bottom of the inner cavity of the sewage purification tank 1 and located between the outer side of the isolation inner tube 3 and the outer isolation wall 5. A strip groove 10 is opened on the top of the hollow plate 9. A first water pump 11 is fixedly connected to the bottom of the inner cavity of the sewage purification tank 1 and located inside the chassis tube 4. The water inlet of the first water pump 11 is connected to a first water pumping pipe 12, and the top of the first water pumping pipe 12 is connected to a first water distribution box 13. A sewage suction pipe 14 is connected between the side of the first water distribution box 13 and the top of the hollow plate 9. The water outlet of the first water pump 11 is connected to the first water outlet. Pipe 15, and the top end of the first water outlet pipe 15 is connected to the second water distribution box 16, and the side of the second water distribution box 16 is connected to the return pipe 17, one end of the return pipe 17 passes through the chassis tube 4 and extends to the cavity between the chassis tube 4 and the isolation inner tube 3. The sewage in the hollow plate 9 outside the isolation inner tube 3 is extracted by setting the first water pump 11, and then the sediment thereon is indirectly extracted, and then discharged to the inside, which is convenient for subsequent centralized treatment, and the filter plate 6 on the isolation inner tube 3 can achieve the effect of secondary filtration. Compared with ordinary sewage pools, the purification effect is better.

[0041] The present invention also discloses an operation method of a wastewater treatment system made of concrete, which specifically comprises the following steps:

[0042] Step 1: During the working process, the solar panel 22 converts solar energy into electrical energy and stores it in the battery 20 for use by the power supply. Before use, the flocculant is first poured into the liquid medicine tank 2, and the sewage is first introduced into the shallowest cavity among the eight cavities outside the isolation inner cylinder 3 in the sewage purification tank 1. The sewage passes through the filter plate 6 on the outer isolation wall 5 to filter out some impurities and then flows into the shallower cavity on one side, and then flows layer by layer for filtration. At the same time, the second water pump 34 extracts the sewage in the deepest cavity through the second pumping pipe 35, and then pumps the sewage into the cavity in the lower right corner of the liquid medicine tank 2. Part of the sewage enters the liquid level pipe 39, and the liquid level detector 40 performs liquid level detection and transmits the value to the control panel 38 for detection;

[0043] Step 2: After receiving the data, the processor 45 in the control panel 38 transmits it to the data acquisition module 46, and then compares the data through the data comparison module 47. If the liquid level reaches the specified liquid level, the feedback signal is sent to the processor 45, and the processor 45 controls the second water pump 34 to stop working, and starts the timing module 49 for timing, and starts the electric push rod 28 to press the piston 29, so that the liquid in the cavity below it is pressed into the sealing cover 31 through the connecting pipe 32, and then injected into the sewage in the cavity below through the injection tube 33 for full mixing. In the process of the piston 29 descending, the liquid is used to The negative pressure can make the pipette 30 draw a certain amount of liquid medicine into the cavity above the piston 29 again. During the resetting process of the piston 29, the one-way valve on the piston 29 automatically opens, and the liquid medicine above it flows to the bottom through the one-way valve, waiting for injection again (the electric push rod 28 pushes the piston 29 quickly when pressing down, and resets slowly when resetting). When the timing module 49 reaches the specified time, it feeds back a signal to the processor 45, and then controls the valve on the third water outlet pipe 37 to open, and discharges the sewage mixed with liquid medicine in the cavity below back into the sewage purification tank 1, and then starts the second water pump 34 again;

[0044] Step three: During the working process, the first water pump 11 is turned on in real time, and the impurities precipitated from the sewage in the sewage purification tank 1 sink to the hollow plate 9. The first water pump 11 extracts water from the hollow plate 9 through the first water pumping pipe 12, the first water distribution box 13 and the sewage suction pipe 14, and then uses the strip groove 10 to absorb the precipitation on its surface, and then discharges the precipitation through the first water outlet pipe 15, the second water distribution box 16 and the return pipe 17 to the cavity between the isolation inner tube 3 and the chassis tube 4, and then concentrates the precipitation in the cavity and waits for later extraction.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment system made of concrete, comprising a sewage purification tank (1), a liquid medicine tank (2) being arranged on the right side of the sewage purification tank (1), characterized in that: The bottom of the inner cavity of the sewage purification tank (1) is fixedly connected with an isolation inner cylinder (3) and a chassis cylinder (4) in sequence from the inside to the outside, and an outer isolation wall (5) is fixedly connected between the isolation inner cylinder (3) and the sewage purification tank (1), the outer isolation wall (5) and the top of the isolation inner cylinder (3) are both provided with a notch, a U-shaped metal frame (50) is fixedly connected inside the notch, and a filter plate (6) is clamped on the inner surface of the U-shaped metal frame (50), and a rubber ring (7) is fixedly connected to the front and rear sides of the filter plate (6), an inner isolation wall (8) is fixedly connected between the isolation inner cylinder (3) and the chassis cylinder (4), and eight outer isolation walls (5) and eight inner isolation walls (8) are provided, and the inner and outer spaces of the isolation inner cylinder (3) are evenly spaced to eight, and the depths of the eight cavities on the same side gradually increase; A hollow plate (9) is fixedly connected to the bottom of the inner cavity of the sewage purification tank (1) and located between the outer side of the isolation inner cylinder (3) and the outer isolation wall (5); a strip groove (10) is provided on the top of the hollow plate (9); a first water pump (11) is fixedly connected to the bottom of the inner cavity of the sewage purification tank (1) and located inside the chassis cylinder (4); a water inlet of the first water pump (11) is connected to a first water pumping pipe (12), and the top end of the first water pumping pipe (12) is connected to a first water distribution box (11). 3), a sewage suction pipe (14) is connected between the side of the first water distribution box (13) and the top of the hollow plate (9), the water outlet of the first water pump (11) is connected to the first water outlet pipe (15), and the top of the first water outlet pipe (15) is connected to the second water distribution box (16), and the side of the second water distribution box (16) is connected to a return pipe (17), one end of the return pipe (17) passes through the chassis tube (4) and extends to the cavity between the chassis tube (4) and the isolation inner tube (3); A support block (18) is fixedly connected to the upper part of the inner wall of the chassis tube (4), and a support plate (19) is movably connected to the top of the support block (18), a storage battery (20) is movably connected to the top of the support plate (19), a harness hole (21) is provided at the center of the support plate (19), a solar panel (22) is fixedly connected to the top of the inner partition wall (8) via a frame, a transverse partition (23) is fixedly connected to the inside of the liquid medicine tank (2), an upper partition (24) is fixedly connected between the top of the transverse partition (23) and the inner wall of the liquid medicine tank (2), and a lower partition (25) is fixedly connected between the bottom of the transverse partition (23) and the inner wall of the liquid medicine tank (2), and a left side of the upper partition (24) and the inner wall of the liquid medicine tank (2) are connected from top to bottom in accordance with the above. A fixing plate (26) and a retaining ring (27) are fixedly connected to the bottom of the inner cavity of the medicine liquid tank (2) and located on the left side of the lower partition (25). A second water pump (34) is fixedly connected to the bottom of the inner cavity of the medicine liquid tank (2) and located on the left side of the lower partition (25). The water inlet of the second water pump (34) is connected to a second water pumping pipe (35). One end of the second water pumping pipe (35) passes through the medicine liquid tank (2) and extends to the bottom of the deepest cavity outside the isolation inner cylinder (3). The water outlet of the second water pump (34) is connected to a second water outlet pipe (36). The top end of the second water outlet pipe (36) passes through the top of the lower partition (25) and extends to the right side of the lower partition (25). The bottom of the back side of the medicine liquid tank (2) is connected to a third water outlet pipe (37). One end of the third water outlet pipe (37) extends to the top of the shallowest cavity outside the isolation inner cylinder (3).

2. A wastewater treatment system based on concrete according to claim 1, characterized in that: The top of the fixed plate (26) is fixedly connected to an electric push rod (28), the bottom end of the electric push rod (28) passes through the fixed plate (26) and is fixedly connected to a piston (29), and the surface of the piston (29) is slidably connected to the inner wall of the medicine liquid box (2) and the left side of the upper partition (24), the inside of the piston (29) is penetrated by a one-way valve, the right side of the upper partition (24) and located below the fixed plate (26) is connected to a suction pipe (30), and the bottom end of the suction pipe (30) extends to the top of the transverse partition (23), the right side of the top of the transverse partition (23) is fixedly connected to a sealing cover (31), and a connecting pipe (32) is connected between the left side of the sealing cover (31) and the bottom of the upper partition (24), and the inside of the transverse partition (23) and located inside the sealing cover (31) is penetrated by an injection tube (33).

3. A wastewater treatment system based on concrete according to claim 1, characterized in that: A control panel (38) is fixedly connected to the front of the medicine liquid tank (2), a liquid level tube (39) is connected to the bottom of the front of the medicine liquid tank (2), a liquid level detector (40) is fixedly connected to the inside of the liquid level tube (39), and the top end of the liquid level detector (40) extends to the top of the liquid level tube (39).

4. A wastewater treatment system based on concrete according to claim 1, characterized in that: The output end of the solar cell panel (22) is electrically connected to the input end of the storage battery (20) via a wire, the output end of the storage battery (20) is electrically connected to the input ends of the first water pump (11) and the control panel (38) via a wire, the output end of the control panel (38) is electrically connected to the input end of the second water pump (34) and the electric push rod (28) via a wire, and the control panel (38) is bidirectionally connected to the liquid level detector (40) via a wire.

5. A wastewater treatment system based on concrete according to claim 4, characterized in that: The control panel (38) comprises a control button (41), a display screen (42), an input / output serial port (43) and a digital circuit board (44); the digital circuit board (44) comprises a processor (45), a data acquisition module (46), a data comparison module (47), a liquid level alarm module (48) and a timing module (49); the output end of the control button (41) is electrically connected to the input end of the display screen (42); the output end of the processor (45) is electrically connected to the data acquisition module (46), the data comparison module (47), the liquid level alarm module (48) and the timing module (49); The output end of the data acquisition module (46) is electrically connected to the input end of the data comparison module (47), the output end of the data comparison module (47) is electrically connected to the input end of the liquid level alarm module (48), the output end of the liquid level alarm module (48) is electrically connected to the input end of the processor (45) and the timing module (49), respectively, and the output ends of the timing module (49) and the input / output serial port (43) are both electrically connected to the input end of the processor (45).

6. An operating method of a wastewater treatment system based on concrete according to any one of claims 1 to 5, characterized in that: The specific steps include: Step 1: During operation, the solar panel (22) converts solar energy into electrical energy and stores it in the storage battery (20) for use by the power supply device. Before use, the flocculant is first poured into the liquid medicine tank (2). The sewage is first introduced into the shallowest cavity among the eight cavities outside the isolation inner cylinder (3) in the sewage purification tank (1). The sewage passes through the filter plate (6) on the outer isolation wall (5) to filter out some impurities and then flows into the shallower cavity on one side. Then, the sewage flows layer by layer for filtration. At the same time, the second water pump (34) extracts the sewage in the deepest cavity through the second pumping pipe (35), and then pumps the sewage into the cavity at the lower right corner of the liquid medicine tank (2). Part of the sewage enters the liquid level pipe (39). The liquid level detector (40) detects the liquid level and transmits the value to the control panel (38) for detection. Step 2: After receiving the data, the processor (45) in the control panel (38) transmits the data to the data acquisition module (46), and then performs data comparison through the data comparison module (47). If the liquid level reaches the specified liquid level, a feedback signal is sent to the processor (45), and the processor (45) controls the second water pump (34) to stop working, and at the same time starts the timing module (49) to start the timing, and starts the electric push rod (28) to press the piston (29) downward, so that the liquid medicine in the cavity below it is pressed into the sealing cover (31) through the connecting pipe (32), and then injected into the sewage in the cavity below through the injection pipe (33) to fully Mixing, and during the process of the piston (29) descending, the negative pressure can be used to make the suction tube (30) again extract a certain amount of liquid medicine into the cavity above the piston (29), and during the process of the piston (29) resetting, the one-way valve on the piston (29) automatically opens, and the liquid medicine above it flows to the bottom through the one-way valve, waiting for injection again, when the timing module (49) reaches the specified time, the feedback signal is sent to the processor (45), and then the valve on the third outlet pipe (37) is controlled to open, and the sewage mixed with the liquid medicine in the cavity below is discharged back to the sewage purification tank (1), and then the second water pump (34) is started again; Step 3: During the operation, the first water pump (11) is turned on in real time, and the impurities precipitated from the sewage in the sewage purification tank (1) sink onto the hollow plate (9). The first water pump (11) extracts water from the hollow plate (9) through the first water extraction pipe (12), the first water distribution box (13) and the sewage suction pipe (14), and then uses the strip groove (10) to absorb the sediment on the surface, and then discharges the sediment into the cavity between the isolation inner tube (3) and the chassis tube (4) through the first water outlet pipe (15), the second water distribution box (16) and the return pipe (17), and then concentrates the sediment in the cavity and waits for later extraction.

7. The method for operating a wastewater treatment system based on concrete according to claim 6, characterized in that: In the second step, the electric push rod (28) pushes the piston (29) quickly when pressing down, and resets slowly when resetting.

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