A sewage desilting integrated treatment system

Abstract

The present application relates to the technical field of hazardous waste treatment, and in particular to a sewage desilting integrated treatment system, which includes a storage tank, an overflow tank, a sedimentation tank and a clear water tank, wherein the storage tank is interconnected with the overflow tank, a medicine barrel is provided on one side of the overflow tank, the medicine barrel is interconnected with the overflow tank and medicine is introduced into the overflow tank to remove impurities in the sewage, the sedimentation tank is interconnected with the overflow tank to settle flocculants in the sewage, and the clear water tank is interconnected with the sedimentation tank to receive dischargeable water. The present application has the effect of reducing the cost of sewage treatment while making the sewage meet the discharge standard.

Description

Technical Field

[0001] The present application relates to the technical field of hazardous waste treatment, and in particular to an integrated sewage dredging and treatment system. Background Art

[0002] The wastewater generated by chemical plants includes chemical wastewater and domestic wastewater. Neither of them can be discharged directly, so relevant treatment is required to meet the discharge standards. Among the related technologies, biological oxidation treatment is one of the most common wastewater treatment methods, which uses the metabolic activities of microorganisms to degrade and remove organic matter and other pollutants in wastewater, so that the wastewater meets the discharge standards.

[0003] During the biological oxidation process, microorganisms degrade organic matter through metabolic activities, forming precipitated substances for subsequent centralized treatment. However, biological oxidation also produces gaseous byproducts, mainly including carbon dioxide, methane, hydrogen sulfide, ammonia, etc. If these waste gases are not properly treated and directly discharged into the atmosphere, they may have certain impacts on the environment and human health.

[0004] In order to reduce the impact of waste gas generated by biological oxidation on the environment and human body, it is usually necessary to select appropriate waste gas treatment methods according to specific circumstances to ensure that waste gas emissions meet relevant environmental protection standards. However, the waste gas treatment process makes the sewage treatment process more complicated and increases the treatment cost. Utility Model Content

[0005] In order to make sewage meet the discharge standards while reducing sewage treatment costs, the present application provides an integrated sewage dredging treatment system.

[0006] The present application provides a sewage desilting integrated treatment system adopting the following technical solutions:

[0007] A sewage dredging integrated treatment system comprises a storage tank, an overflow tank, a sedimentation tank and a clear water tank, wherein the storage tank is interconnected with the overflow tank, a reagent barrel is arranged on one side of the overflow tank, the reagent barrel is interconnected with the overflow tank and reagent is introduced into the overflow tank to remove impurities in the sewage, the sedimentation tank is interconnected with the overflow tank to settle flocculants in the sewage, and the clear water tank is interconnected with the sedimentation tank to receive dischargeable water.

[0008] By adopting the above technical solution, the storage tank can collect and store sewage, the reagent barrel introduces the reagent into the overflow tank, and the harmful substances in the sewage are effectively decomposed, precipitated or converted through chemical treatment methods, so as to remove impurities in the sewage and improve the sewage treatment effect. The setting of the sedimentation tank can settle and separate the flocculants in the sewage, effectively remove the suspended matter, colloid substances, etc. in the sewage, and further improve the degree of water purification. As the last checkpoint before discharge, the clear water tank receives the treated dischargeable water to ensure that the discharged water quality meets the relevant environmental protection standards and requirements. The sewage treatment system has a simple structure, convenient operation and stable operation. No waste gas is generated during the sewage treatment process, which reduces the links of waste gas treatment and thus reduces the treatment cost.

[0009] Furthermore, the medicine barrels include a first medicine barrel, a second medicine barrel and a third medicine barrel for containing different medicines, and each medicine barrel is provided with a lifting pump in a one-to-one correspondence;

[0010] The overflow tank includes a primary overflow tank, a secondary overflow tank, a tertiary overflow tank and a quaternary overflow tank which are interconnected, and a stirring device for mixing reagents is provided in each of the primary overflow tank, the secondary overflow tank and the tertiary overflow tank;

[0011] The oil decomposer contained in the first reagent barrel is passed into the first overflow tank through the lifting pump, the nitrate decomposer in the second reagent barrel is passed into the second overflow tank through the lifting pump, and the flocculant in the third reagent barrel is passed into the third overflow tank through the lifting pump.

[0012] By adopting the above technical solution, the oil decomposer in the first reagent barrel decomposes the oil substances in the first overflow tank; the nitrification agent in the second reagent barrel nitrates the ammonia nitrogen in the second overflow tank; the flocculant in the third reagent barrel condenses the impurities in the third overflow tank, and the sewage with flocculants is further clarified and stabilized in the fourth overflow tank, and finally flows into the sedimentation tank. Corresponding lifting pumps are set for multiple reagent barrels to achieve the effect of precise delivery of different reagents. Each reagent has a specific function, and the staged treatment method improves the effect of sewage treatment. The lifting pump on each reagent barrel can ensure that the reagent is delivered to the corresponding overflow tank according to the predetermined amount and speed, thereby ensuring the stability and controllability of the treatment process. The stirring device can evenly disperse the reagent into the sewage, ensure that the reagent and sewage are fully mixed, avoid local accumulation or waste of the reagent, and make the treatment process more uniform and efficient.

[0013] Furthermore, a first baffle is provided between the first overflow tank and the second overflow tank, and a first overflow port is provided at the lower part of the first baffle;

[0014] A second baffle is provided between the secondary overflow pool and the tertiary overflow pool, and a second overflow port is provided on the upper portion of the second baffle;

[0015] A third partition is provided between the third-level overflow pool and the fourth-level overflow pool, and a third overflow port is provided at the lower part of the third partition;

[0016] The fourth overflow tank is provided with a fourth overflow port on one side close to the sedimentation tank. A drainage elbow fixedly connected to the fourth overflow tank is arranged in the fourth overflow port. The sedimentation tank and the fourth overflow tank are interconnected through the drainage elbow.

[0017] By adopting the above technical solution, the multi-level overflow tanks are interconnected, and the partitions and overflow ports at different positions are used to achieve step-by-step treatment and effective separation of sewage. In addition, the drainage elbow can be used to connect the four-level overflow tank with the sedimentation tank on the one hand, and slow down the water flow speed through its curved structure on the other hand.

[0018] Furthermore, a guide plate for guiding the sedimentation of flocs is provided in the sedimentation tank, and the guide plate is located below the drainage elbow. A plurality of honeycomb channels for the flocs to pass through are opened on the guide plate, and each of the honeycomb channels is arranged to be inclined downward from one side of the drainage elbow to a side away from the drainage elbow.

[0019] By adopting the above technical solution, the guide plate is arranged in the sedimentation tank and is located below the drain elbow, so that the water flow path discharged from the drain elbow is optimized, and the honeycomb channel allows the floccules to pass smoothly and continue to settle. The downward slanting design of the honeycomb channel helps to accelerate the sedimentation speed of the floccules. Since the honeycomb channel has a certain inclination angle, the floccules are affected by gravity in the channel, so that the floccules in the sewage are better guided and distributed during the sedimentation process. On the one hand, the guide plate ensures that the floccules can smoothly enter the bottom of the sedimentation tank, and can also avoid the blockage problem that may occur in the traditional sedimentation tank, thereby improving the sedimentation effect and the efficiency of sewage treatment.

[0020] Furthermore, the clean water tank is fixedly connected to a side of the sedimentation tank close to the medicine barrel, and a water inlet is provided on the side wall of the sedimentation tank and is interconnected with the clean water tank;

[0021] A water trough is fixedly connected to the inner wall of the sedimentation tank on the side away from the overflow tank. The water trough and the water outlet are communicated with each other. A toothed baffle for filtering floating foam is arranged on the side of the water trough close to the overflow tank.

[0022] By adopting the above technical solution, the clean water after being treated in the sedimentation tank can flow into the clean water tank through the water inlet. The water inlet is connected to the water inlet, and the upper clear liquid of the sedimentation tank can flow into the clean water tank and enter the water inlet. In the sewage treatment process, foam is a common by-product. If it is not treated, it will enter the subsequent treatment stage with the water flow, affecting the treatment effect. The toothed baffle is set on the side of the water inlet near the overflow tank, which can filter the clean water before it flows into the clean water tank. The toothed baffle can use its special shape and structure to effectively intercept and remove foam, prevent foam from entering the clean water tank, and ensure that the water quality meets the discharge standard.

[0023] Furthermore, a sedimentation hopper for settling flocculants is provided at the lower part of the sedimentation tank, a dredging mechanism is provided above the sedimentation tank, a waste pipe for liquid waste to flow through is provided on the side of the sedimentation hopper away from the medicine barrel, one end of the waste pipe is interconnected with the interior of the sedimentation hopper, and the dredging mechanism is connected to the end of the waste pipe away from the side connected to the sedimentation hopper.

[0024] By adopting the above technical solution and setting a sedimentation bucket, the floccules in the sewage can be better settled and concentrated. Considering the water flow characteristics and the sedimentation characteristics of the floccules, the sedimentation bucket can slow down the flow and cause the floccules to settle to the bottom under the action of gravity through its funnel-shaped structure design, thereby achieving effective separation of the floccules. The waste pipe is connected to the dredging mechanism above the sedimentation bucket, which uniformly processes the cleared floccules, avoiding the tediousness of manual dredging.

[0025] Furthermore, the dredging mechanism includes a dredging platform and a filter press, and the dredging platform is laid above the sedimentation tank to support the filter press;

[0026] The filter press includes a filter press body and vertical plates symmetrically supported on both sides of the filter press body, the waste pipe passes through the vertical plate and is connected with the filter press body to transport liquid waste into the filter press body, a drain pipe for waste liquid output is provided on the vertical plate at a position adjacent to the waste pipe, one end of the drain pipe passes through the vertical plate and is connected with the filter press body, and one end of the drain pipe away from the filter press body extends into the four-stage overflow tank.

[0027] By adopting the above technical solution, the flocculants in the sedimentation bucket are filtered by a filter press, which can efficiently remove the water therein and effectively separate the solid waste. Compared with the traditional dredging method, it can be more efficient and thorough, greatly improving the dredging efficiency. The liquid waste is transported to the main body of the filter press through the waste pipe. The waste liquid treated by the filter press can be discharged through the drain pipe and directly introduced into the four-stage overflow tank, so that the waste liquid can be circulated in the system, reducing the cost of waste liquid treatment. The solid waste treated by the filter press can be further recycled, such as as fertilizer, fuel or other industrial raw materials, which not only reduces the amount of waste emissions, but also realizes the effective recovery and reuse of resources, with good environmental protection and economic benefits.

[0028] Furthermore, the waste pipe is arranged at the center position of the vertical plate, and the drainage pipe includes a primary branch pipe, a secondary branch pipe and a main drainage pipe which are all interconnected. The number of the primary branch pipes is several, and one end of each primary branch pipe vertically passes through the edge position of the vertical plate and is connected to the filter press body, and one end of each primary branch pipe away from the filter press body is connected to the secondary branch pipe, and each secondary branch pipe is respectively connected to at least two primary branches, and one end of each secondary branch pipe away from the primary branch pipe is connected to the main drainage pipe, and each main drainage pipe is connected to at least two secondary branches.

[0029] By adopting the above technical solution, the waste pipe is installed at the center of the vertical plate, which is conducive to the uniform distribution and flow of liquid waste in the filter press body, ensuring the uniform pressure distribution in the filter press body and improving the filtration efficiency. Through the multi-level branch pipe structure composed of the primary branch pipe, the secondary branch pipe and the main drainage pipe, the drainage pipe can effectively collect and export the waste liquid in the filter press body. Each primary branch pipe vertically passes through the edge position of the vertical plate and is directly connected to the filter press body to ensure the rapid export of waste liquid. Each primary branch pipe is connected to the main drainage pipe through the secondary branch pipe to form a complete drainage system to ensure the effective collection and centralized discharge of waste liquid.

[0030] Furthermore, a slag pan for receiving solid waste is provided below the filter press body, the slag pan is fixedly connected to the dredging platform, one side of the slag pan protrudes from the dredging platform, a slag discharge port is provided on the side of the slag pan protruding from the dredging platform, and the width direction of the slag pan gradually narrows from the middle position to the side of the slag discharge port.

[0031] By adopting the above technical solution, the slag pan is fixedly connected to the dredging platform and is located below the main body of the filter press to accurately receive the solid waste residue generated by the filtration, ensuring the centralized collection of the waste residue, avoiding scattering or omission, and improving the cleaning efficiency. One side of the slag pan protrudes from the dredging platform, and a slag discharge port is opened on this side to conveniently discharge the waste residue from the slag discharge port. The width of the slag pan gradually narrows from the middle position to one side of the slag discharge port, so that the cleaning personnel can centrally guide the accumulated waste residue through the narrowed structure of the slag pan, and gather it uniformly to the slag discharge port position, which is convenient for the discharge and cleaning of the waste residue.

[0032] Furthermore, a guide pipe for guiding the waste slag to fall to the ground is fixedly connected below the slag pan, one end of the guide pipe is located at the slag discharge port, and one end of the guide pipe away from the slag pan is inclined toward a side away from the sedimentation tank.

[0033] By adopting the above technical solution, one end of the guide pipe is located at the slag discharge port, and the other end extends obliquely to the side away from the sedimentation tank, ensuring that the waste slag can be discharged to the ground along the guide pipe in a directional manner, reducing the impact of the waste slag on the surrounding environment and equipment, and also avoiding the scattering and splashing of the waste slag during the discharge process, making the waste slag discharge process smoother and more efficient. After the waste slag is discharged to the ground through the guide pipe, it is convenient for subsequent treatment, such as collection, transportation or further treatment, reducing the impact on the environment and meeting the requirements of environmental protection and sustainable development.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] 1. The sewage treatment system realizes the staged treatment of sewage through the setting of multi-level overflow tanks, chemical barrels and stirring devices, ensuring that each chemical can effectively decompose, precipitate or transform specific harmful substances, thereby improving the efficiency and effect of sewage treatment. The lifting pump on the chemical barrel ensures the accurate delivery of the chemical, and the stirring device ensures that the chemical and sewage are fully mixed, improving the stability and controllability of the treatment process;

[0036] 2. The sedimentation tank uses guide plates and honeycomb channels to effectively accelerate the settling speed of flocculants and improve the sedimentation effect. The combination of drainage elbows and guide plates optimizes the water flow path. The water trough and tooth structure effectively filter out the upper layer of foam, thereby improving the efficiency of sewage treatment.

[0037] 3. The desilting platform provides a placement platform for the filter press and also provides space for operators to operate and move around. The filter press performs filter press treatment on the flocculants in the sedimentation bucket to separate solid waste from liquid waste. The solid waste can be further recycled to reduce waste emissions. The waste liquid is effectively collected and exported through a multi-stage branch pipe structure and directly introduced into the four-stage overflow tank for circulation treatment, reducing the cost of waste liquid treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the overall structure of a sewage desilting integrated treatment system according to an embodiment of the present application. Figure 1 .

[0039] Figure 2 This is a schematic diagram of the overall structure of a sewage desilting integrated treatment system according to an embodiment of the present application. Figure 2 .

[0040] Figure 3 It is a schematic cross-sectional view of the overflow tank in the embodiment of the present application.

[0041] Figure 4 It is a schematic diagram of the structural explosion of a sewage dredging integrated treatment system according to an embodiment of the present application.

[0042] Figure 5 It is a schematic diagram of the partial structure of the sedimentation tank in the embodiment of the present application.

[0043] Figure 6 It is a schematic diagram of the partial structure of the dredging mechanism in the embodiment of the present application.

[0044] Figure 7 It is an enlarged schematic diagram of the structure of the liquid discharge pipe in the embodiment of the present application.

[0045] Explanation of reference numerals: 1. storage tank; 2. overflow tank; 21. primary overflow tank; 211. first baffle; 2111. first overflow port; 22. secondary overflow tank; 221. second baffle; 2211. second overflow port; 23. tertiary overflow tank; 231. third baffle; 2311. third overflow port; 24. quaternary overflow tank; 241. drainage elbow; 2411. fourth overflow port; 25. stirring device; 3. sedimentation tank; 31. guide plate; 311. honeycomb channel; 32. water trough; 33. toothed Baffle; 34, sedimentation bucket; 35, waste pipe; 4, clean water tank; 41, water outlet; 5, chemical barrel; 51, first chemical barrel; 52, second chemical barrel; 53, third chemical barrel; 54, lifting pump; 6, dredging mechanism; 61, dredging platform; 611, slag tray; 6111, slag outlet; 612, guide pipe; 62, filter press; 621, filter press body; 622, vertical plate; 623, drain pipe; 6231, primary branch pipe; 6232, secondary branch pipe; 6233, main drain pipe; 63, ladder. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-7 And embodiments, the present application is further described in detail.

[0047] The present application embodiment discloses a sewage recovery system. Figure 1 and Figure 2 The sewage recovery system includes a storage tank 1, an overflow tank 2, a sedimentation tank 3, a clear water tank 4, a reagent barrel 5 and a dredging mechanism 6. The overflow tank 2 is arranged at an adjacent position to the storage tank 1 for receiving sewage and performing graded treatment on the sewage. The reagent barrel 5 is arranged at an adjacent position on one side of the overflow tank 2. The liquid medicine in the reagent barrel 5 is passed into the overflow tank 2 and harmful substances in the sewage are removed, thereby forming turbid water. The sedimentation tank 3 is arranged in parallel with the overflow tank 2 and is fixedly connected to the side of the overflow tank 2 away from the storage tank 1. The flocculants in the turbid water settle in the sedimentation tank 3. The clear water tank 4 is fixedly connected to the side of the sedimentation tank 3 close to the reagent barrel 5 for receiving and holding the upper clear liquid of the sedimentation tank 3. The dredging platform 61 is arranged above the sedimentation tank for treating liquid waste containing flocculants and sludge.

[0048] Reference Figure 1 and Figure 2 In order to collect and store sewage from different sources, the number of storage tanks 1 can be several and adjusted according to the actual sewage output. In this embodiment, the number of storage tanks 1 is preferably four, which are mainly used to collect chemical sewage and domestic sewage generated in the factory area. The storage tank 1 is connected to the overflow tank 2 through a pipeline, and the sewage is passed from the storage tank 1 to the overflow tank 2 for graded treatment.

[0049] Reference Figure 2 and Figure 3 The overflow pool 2 in this embodiment is a rectangular tank body, and the first partition 211, the second partition 221 and the third partition 231 are equidistantly arranged in the overflow pool 2. The first partition 211, the second partition 221 and the third partition 231 are vertically fixedly connected to the side wall of the overflow pool 2 to divide the overflow pool 2 into a primary overflow pool 21, a secondary overflow pool 22, a tertiary overflow pool 23 and a quaternary overflow pool 24. A first overflow port 2111 is arranged at the lower part of the first partition 211, a second overflow port 2211 is arranged at the upper part of the second partition 221, and a third overflow port 2311 is arranged at the lower part of the third partition 231.

[0050] The medicine barrel 5 is used to hold liquid medicines with different functions, and the number of medicine barrels 5 can be increased or decreased according to actual needs. In this embodiment, the medicine barrel 5 includes a first medicine barrel 51, a second medicine barrel 52 and a third medicine barrel 53, wherein the first medicine barrel 51 contains NaOH and carbon powder, the second medicine barrel 52 contains sodium hypochlorite solution, and the third medicine barrel 53 contains polyaluminum chloride and polyacrylamide (flocculant).

[0051] Each reagent barrel 5 is provided with a lifting pump 54 for pumping the liquid medicine into the overflow tank 2. The reagent in the first reagent barrel 51 is pumped into the primary overflow tank 21 through the lifting pump 54 to decompose the oil substances in the sewage, the reagent in the second reagent barrel 52 is pumped into the secondary overflow tank 22 through the lifting pump 54 to decompose the ammonia nitrogen, and the reagent in the third reagent barrel 53 is pumped into the tertiary overflow tank 23 through the lifting pump 54 to condense the impurities in the sewage. The primary overflow tank 21, the secondary overflow tank 22 and the tertiary overflow tank 23 are all provided with a stirring device 25 for ensuring that the reagent and the sewage are fully mixed. The overflow tanks 2 of each level in this embodiment are interconnected, and the overflow ports at different positions on the partition are used to realize the step-by-step treatment and effective separation of the sewage.

[0052] Reference Figure 4 and Figure 5 A fourth overflow port 2411 is provided on the outer wall of the overflow tank 2 near the third partition plate 231, and the fourth overflow port 2411 is located at the lower part of the outer wall of the overflow tank 2. A drainage elbow 241 is provided on the outer wall of the overflow tank 2, and the drainage elbow 241 passes through the fourth overflow port 2411 in sequence to connect the overflow tank 2 with the sedimentation tank 3.

[0053] The lower part of the sedimentation tank 3 is provided with a sedimentation bucket 34 for settling flocculants. The sedimentation tank 3 of this embodiment is a relatively large rectangular tank. The number of sedimentation buckets 34 is preferably two and they are arranged in parallel at the lower part of the sedimentation tank 3. The number and arrangement of the sedimentation buckets 34 can be adjusted according to the volume and shape of the sedimentation tank 3. Figure 1 A waste pipe 35 for discharging sediment is provided on the side wall of the sedimentation bucket 34. The waste pipe 35 is interconnected with the interior of the sedimentation bucket 34. The end of the waste pipe 35 away from the sedimentation bucket 34 is connected to the dredging mechanism 6, and the dredging mechanism 6 can perform subsequent treatment on the flocculants and silt in the sedimentation bucket 34.

[0054] Reference Figure 4 and Figure 5 A guide plate 31 is provided in the sedimentation tank 3. The guide plate 31 is located below the drain elbow 241 to guide the floccules to settle to the sedimentation bucket 34. The guide plate 31 is provided with a plurality of honeycomb channels 311 for the floccules to pass through. The honeycomb channels 311 are evenly arranged and tilted downward from one side of the drain elbow 241 to the side away from the drain elbow 241. The guide plate 31 and the inner wall of the sedimentation bucket 34 can be fixed by a rope hook or other means.

[0055] A water channel 32 is provided on the inner wall of the sedimentation tank 3 away from the drain elbow 241, and the water channel 32 is located above the guide plate 31. The water channel 32 in this embodiment is an L-shaped plate body, and the water channel 32 is vertically fixedly connected to the inner wall of the sedimentation tank 3 along the width direction of the sedimentation tank 3. A toothed baffle 33 for intercepting floating foam is provided on the side of the water channel 3 away from the fixed connection with the inner wall of the sedimentation tank 3, and the toothed baffle 33 and the inner wall of the sedimentation tank 3 are parallel to each other.

[0056] A water inlet 41 for interconnection is provided on the side wall of the clear water tank 4 and the side wall of the sedimentation tank 3. The water inlet 41 and the water trough 32 are interconnected. When the upper clear liquid of the sedimentation tank 3 enters the water trough 32 after secondary filtration by the toothed baffle 33, the drainable water in the water trough 32 enters the clear water tank 4 through the water inlet 41 for unified collection and treatment.

[0057] Reference Figure 6 and Figure 7 The desilting mechanism 6 includes a desilting platform 61 and a filter press 62. In this embodiment, the desilting platform 61 is arranged on the upper part of the sedimentation tank 3, and the desilting platform 61 can be used to support the filter press 62 and allow operators to move around. A staircase 63 leading to the desilting platform 61 is arranged between the sedimentation tank 3 and the reagent barrel 5.

[0058] The filter press 62 includes a main body of the filter press 62 and vertical plates 622 arranged on both sides of the main body of the filter press 62. The vertical plates 622 are vertically fixedly connected to the silt removal platform 61 for installation of the main body of the filter press 62 and other pipelines. Figure 1 The waste pipe 35 is vertically penetrated on the vertical plate 622 near the overflow tank 2. The waste pipe 35 passes through the center of the vertical plate 622 and is connected with the inside of the main body of the filter press 62. The flocculants and sludge in the sedimentation bucket 34 enter the inside of the main body of the filter press 62 through the waste pipe 35 for filtration. The flocculants and sludge are separated into waste liquid and solid waste through filtration.

[0059] A drain pipe 623 for discharging waste liquid is also provided on the vertical plate 622. The drain pipe 623 includes a primary branch pipe 6231, a secondary branch pipe 6232 and a main drain pipe 6233 that are interconnected. The number of the primary branch pipes 6231 in this embodiment is preferably four. The four primary branch pipes 6231 are vertically penetrated at the four corner positions of the vertical plate 622. Each primary branch pipe 6231 passes through the vertical plate 622 and is connected to the interior of the main body of the filter press 62. One end of each primary branch pipe 6231 away from the main body of the filter press 62 is connected to the secondary branch pipe 6232. The number of the secondary branch pipes 6232 is two. Two primary branch pipes 6231 are respectively connected to each secondary branch pipe 6232. One end of each secondary branch pipe 6232 away from the connection with each primary branch pipe 6231 is connected to the main drain pipe 6233. Figure 1The end of the main drainage pipe 6233 away from the filter press 62 extends into the fourth overflow tank 2, so that the waste liquid output by the main body of the filter press 62 can be subsequently treated together with the turbid water in the fourth overflow tank 2.

[0060] Reference Figure 6 and Figure 7 A slag pan 611 is provided on the dredging platform 61. The slag pan 611 is located below the main body of the filter press 62 and receives the solid waste produced by the main body of the filter press 62. The slag pan 611 extends away from the side of the step 63 and protrudes from the edge of the dredging platform 61. A slag discharge port 6111 is provided on the side of the slag pan 611 protruding from the dredging platform 61. The width direction of the slag pan 611 gradually narrows from the middle position to the side of the slag discharge port 6111. When the operator cleans the solid waste on the slag pan 611, the narrowing setting of the slag pan 611 facilitates the solid waste to be concentrated at the position of the slag discharge port 6111.

[0061] A guide pipe 612 is provided below the slag pan 611, and the guide pipe 612 is located at the position of the slag discharge port 6111. The guide pipe 612 is arranged to be inclined away from the end connected to the slag pan 611 and to the side away from the sedimentation tank. The solid waste enters the slag discharge port 6111 and falls to the ground through the guide pipe 612, which is convenient for ground operators to collect the solid waste uniformly and carry out subsequent processing.

[0062] The implementation principle of a sewage recovery system in an embodiment of the present application is as follows: the sewage in the storage tank 1 enters the overflow tank 2 through a pipe, and different levels of overflow tanks 2 are formed in the overflow tank 2 by arranging different partitions, and the sewage is treated step by step. In each level of the overflow tank 2, different chemicals are added to remove harmful substances in the sewage, and these chemicals are pumped from the chemical barrel 5 into the corresponding overflow tank 2 through the lifting pump 54.

[0063] The NaOH and carbon powder in the first reagent barrel 51 are used to decompose the oil in the primary overflow tank 21; the sodium hypochlorite solution in the second reagent barrel 52 is used to nitrate the ammonia nitrogen in the secondary overflow tank 22; the polyaluminium chloride and polyacrylamide (flocculant) in the third reagent barrel 53 are used to condense the impurities in the tertiary overflow tank 23. The stirring device 25 can fully mix the reagent with the sewage to improve the treatment effect. The treated sewage flows into the sedimentation tank 3 through the drainage elbow 241. The guide plate 31 with the inclined honeycomb channel 311 can effectively settle the flocculants to the sedimentation bucket 34. The water trough 32 and the toothed baffle 33 on the upper part of the sedimentation tank 3 can intercept and remove the floating foam. After the secondary filtration of the toothed baffle 33, the dischargeable water that meets the discharge standard enters the clear water tank 4 through the water outlet 41 for further use or direct discharge.

[0064] The flocculants and sludge in the sewage in the sedimentation tank 3 settle in the sedimentation bucket 34 and are led out to the dredging mechanism 6 through the waste pipe 35 for filter pressing. The waste liquid after filter pressing is introduced into the four-stage overflow tank 24 by the multi-stage drainage pipe 623, and is circulated with the turbid water in the four-stage overflow tank 24. The solid waste generated by filter pressing falls into the slag tray 611 under the filter press 62. The operator cleans the solid waste into the slag discharge port 6111 on the dredging platform 61. The solid waste falls to the ground through the guide pipe 612, which is convenient for the ground operator to collect the solid waste uniformly and carry out subsequent treatment.

[0065] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sewage desilting integrated treatment system, characterized in that: The invention comprises a storage tank (1), an overflow tank (2), a sedimentation tank (3) and a clear water tank (4), wherein the storage tank (1) and the overflow tank (2) are interconnected, a reagent barrel (5) is arranged on one side of the overflow tank (2), the reagent barrel (5) and the overflow tank (2) are interconnected and a reagent is introduced into the overflow tank (2) to remove impurities in the sewage, the sedimentation tank (3) and the overflow tank (2) are interconnected to settle flocculants in the sewage, and the clear water tank (4) and the sedimentation tank (3) are interconnected to receive the dischargeable water; The medicine barrel (5) comprises a first medicine barrel (51), a second medicine barrel (52) and a third medicine barrel (53) for containing different medicines, and each medicine barrel (5) is provided with a lifting pump (54) in a one-to-one correspondence; The overflow pool (2) comprises a primary overflow pool (21), a secondary overflow pool (22), a tertiary overflow pool (23) and a quaternary overflow pool (24) which are interconnected and arranged, and a stirring device (25) for mixing medicines is arranged in each of the primary overflow pool (21), the secondary overflow pool (22) and the tertiary overflow pool (23); The oil decomposing agent contained in the first reagent barrel (51) is passed into the first overflow tank (21) through the lifting pump (54), the nitrate decomposing agent contained in the second reagent barrel (52) is passed into the second overflow tank (22) through the lifting pump (54), and the flocculant contained in the third reagent barrel (53) is passed into the third overflow tank (23) through the lifting pump (54); A first baffle (211) is provided between the primary overflow tank (21) and the secondary overflow tank (22), and a first overflow port (2111) is provided at the lower portion of the first baffle (211); A second baffle (221) is provided between the secondary overflow pool (22) and the tertiary overflow pool (23), and a second overflow port (2211) is provided on the upper portion of the second baffle (221); A third partition plate (231) is provided between the third-level overflow pool (23) and the fourth-level overflow pool (24), and a third overflow port (2311) is provided at the lower part of the third partition plate (231); The fourth overflow tank (24) is provided with a fourth overflow port (2411) on one side close to the sedimentation tank (3), and a drainage elbow (241) fixedly connected to the fourth overflow tank (24) is provided in the fourth overflow port (2411), and the sedimentation tank (3) and the fourth overflow tank (24) are connected to each other through the drainage elbow (241); A guide plate (31) for guiding flocculants to settle is arranged in the sedimentation tank (3), the guide plate (31) is located below the drainage elbow (241), a plurality of honeycomb channels (311) for flocculants to pass through are opened on the guide plate (31), and each of the honeycomb channels (311) is arranged obliquely downward from one side of the drainage elbow (241) to a side away from the drainage elbow (241); A sedimentation bucket (34) for settling flocculants is provided at the bottom of the sedimentation tank (3), a dredging mechanism (6) is provided above the sedimentation tank (3), a waste pipe (35) for liquid waste to flow through is provided on the side of the sedimentation bucket (34) away from the medicine barrel (5), one end of the waste pipe (35) is communicated with the interior of the sedimentation bucket (34), and the dredging mechanism (6) is connected to the end of the waste pipe (35) away from the side connected to the sedimentation bucket (34); The clean water tank (4) is fixedly connected to a side of the sedimentation tank (3) close to the medicine barrel (5), and a water outlet (41) communicating with the clean water tank (4) is provided on the side wall of the sedimentation tank (3); A water trough (32) is fixedly connected to the inner wall of the sedimentation tank (3) on the side away from the overflow tank (2), the water trough (32) and the water outlet (41) are in communication with each other, and a toothed baffle (33) for filtering floating foam is provided on the side of the water trough (32) close to the overflow tank (2); The silt removal mechanism (6) comprises a silt removal platform (61) and a filter press (62); the silt removal platform (61) is laid above the sedimentation tank (3) to support the filter press (62); The filter press (62) comprises a filter press (62) body and vertical plates (622) symmetrically supported on both sides of the filter press (62) body. The waste pipe (35) passes through the vertical plates (622) and is connected to the filter press (62) body to transport liquid waste into the filter press (62) body. A drain pipe (623) for outputting waste liquid is provided on the vertical plates (622) at a position adjacent to the waste pipe (35). One end of the drain pipe (623) passes through the vertical plates (622) and is connected to the filter press (62) body. One end of the drain pipe (623) away from the filter press (62) body extends into the fourth-stage overflow tank (24).

2. The integrated sewage desilting treatment system according to claim 1 is characterized in that: The waste pipe (35) is arranged at the center of the vertical plate (622), and the drainage pipe (623) includes a primary branch pipe (6231), a secondary branch pipe (6232) and a main drainage pipe (6233) which are all interconnected. There are a plurality of primary branch pipes (6231), and one end of each primary branch pipe (6231) vertically passes through the edge of the vertical plate (622) and is connected to the main body of the filter press (62). One end of the branch pipe (6231) away from the main body of the filter press (62) is connected to the secondary branch pipe (6232), and each of the secondary branch pipes (6232) is respectively connected to at least two primary branch pipes (6231). One end of each of the secondary branch pipes (6232) away from the primary branch pipe (6231) is connected to the main drainage pipe (6233), and each of the main drainage pipes (6233) is connected to at least two secondary branch pipes (6232).

3. The integrated sewage desilting treatment system according to claim 2 is characterized in that: A slag pan (611) for receiving solid waste is arranged below the main body of the filter press (62); the slag pan (611) is fixedly connected to the dredging platform (61); one side of the slag pan (611) protrudes from the dredging platform (61); a slag discharge port (6111) is provided on the side of the slag pan (611) protruding from the dredging platform (61); the width direction of the slag pan (611) gradually narrows from the middle position to one side of the slag discharge port (6111).

4. The integrated sewage desilting treatment system according to claim 3 is characterized in that: A guide pipe (612) is fixedly connected below the slag pan (611) to guide the waste slag to fall to the ground, one end of the guide pipe (612) is located at the slag discharge port (6111), and one end of the guide pipe (612) away from the slag pan (611) is inclined toward a side away from the sedimentation tank (3).

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