Wastewater treatment device

Abstract

The utility model relates to a wastewater treatment device. The problems that in the prior art, a wastewater treatment system is complex in technological process, and the oil stain, sludge and sewage separation effect is difficult to achieve are solved. The device comprises a wastewater collecting pool, the wastewater collecting pool is connected with an oil-water separation treatment mechanism, the oil-water separation treatment mechanism is connected with a PH value adjusting assembly, the PH value adjusting assembly is connected with a demulsification and flocculation treatment mechanism, and the demulsification and flocculation treatment mechanism is connected with a precipitation treatment tank. The wastewater sequentially passes through the oil-water separation treatment mechanism, the PH value adjusting assembly, the demulsification and flocculation treatment mechanism and the precipitation treatment tank body and then is treated by the muddy water discharge treatment mechanism. The device has the advantages that the operation is convenient, the process is simple, oil stains and sludge in the wastewater can be effectively removed and separated, and the pH value of the wastewater is adjusted, so that the wastewater meets the discharge standard.

Description

Technical Field

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

[0002] At present, many production enterprises widely use wastewater treatment systems to treat wastewater to avoid excessive pollutants flowing into the outside world. However, when treating industrial wastewater, chemical methods are usually used for treatment. Moreover, when the water quality, water volume, and pH of the wastewater change, operators can easily make misjudgments by observation alone, resulting in blockage of equipment and devices, and failure to meet the requirements of wastewater design treatment. Even if the equipment is barely running, the maintenance workers will be busy all the time. Moreover, after long-term use, the equipment adjustment part and the purification system will be unbalanced, causing the entire wastewater treatment device to be paralyzed. In addition, the existing wastewater treatment system has a complex process flow, and it is difficult to achieve the effect of separating oil, sludge, and sewage, resulting in the treated wastewater being unable to meet the safety discharge standards or be recycled.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a wastewater treatment device [CN201610617732.4], which includes a tube-in-tube heater and a separator; a gas chamber and a liquid chamber are arranged inside the tube-in-tube heater, at least one tube is arranged inside the gas chamber, and a steam pipe and a first pipe are connected to one side of the gas chamber respectively; the tube-in-tube heater is connected to the separator through a first circulation pipe and a second circulation pipe respectively; a second pipe is also connected to the side of the tube-in-tube heater opposite to the separator, and a sewage pipe is also connected to the bottom of the tube-in-tube heater.

[0004] The above scheme has solved to a certain extent the problem that the wastewater treatment system in the prior art has poor practical effect and is prone to misjudgment. However, the scheme still has many shortcomings, such as: it is difficult to achieve the effect of separating oil, sludge and sewage, resulting in the treated wastewater being unable to meet safe discharge standards or be recycled. Summary of the invention

[0005] The purpose of the utility model is to provide a wastewater treatment device in view of the above problems.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a wastewater treatment device, including a wastewater collection tank, the wastewater collection tank is connected to an oil-water separation treatment mechanism, the oil-water separation treatment mechanism is connected to a pH value adjustment component, and the pH value adjustment component is connected to a demulsification and flocculation treatment mechanism, the demulsification and flocculation treatment mechanism is connected to a sedimentation treatment tank, and the wastewater passes through the oil-water separation treatment mechanism, the pH value adjustment component, the demulsification and flocculation treatment mechanism, and the sedimentation treatment tank in sequence, and then is treated by the mud water discharge treatment mechanism.

[0007] In the above-mentioned wastewater treatment device, the oil-water separation treatment mechanism includes an oil-water separation box, the upper end of the oil-water separation box has a wastewater inlet, and the upper side of the outer wall of the oil-water separation box is provided with an oil drain pipe and the lower side is provided with a drain pipe, and the oil-water separation box is provided with a transparent window arranged longitudinally.

[0008] In the above-mentioned wastewater treatment device, an oil discharge valve is provided on the oil discharge pipe, and a drain valve is provided on the drain pipe.

[0009] In the above-mentioned wastewater treatment device, the pH value adjusting component includes a pH adjusting water tank, and the bottom of the pH adjusting water tank is respectively provided with a water inlet pipe connected to a drain pipe and a water guide pipe for discharging the regulated water flow, the upper end of the pH adjusting water tank is respectively connected to a liquid medicine supply structure, and a pH value detection module is provided at the bottom of the pH adjusting water tank, and a water level meter is provided in the pH adjusting water tank.

[0010] In the above-mentioned wastewater treatment device, the liquid medicine supply structure includes an acid liquid medicine tank and an alkaline liquid medicine tank, which are respectively connected to the pH adjustment water tank through an acidic dosing pipe and an alkaline dosing pipe, and dosing valves are provided on the acidic dosing pipe and the alkaline dosing pipe.

[0011] In the above-mentioned wastewater treatment device, the demulsification and flocculation treatment mechanism includes a demulsification and flocculation water tank, which has a demulsification and flocculation sedimentation chamber and a flocculation reaction chamber. A lifting screen structure is provided between the demulsification and flocculation sedimentation chamber and the flocculation reaction chamber. A plurality of liquid adding pipes are provided at the upper end of the demulsification and flocculation water tank, and an inlet pipe is provided on the upper side of the outer wall of the demulsification and flocculation water tank and a diversion funnel is provided on the lower side.

[0012] In the above-mentioned wastewater treatment device, the lifting screen structure includes a flocculation screen, a sealing screen is inserted into the upper end surface of the flocculation screen, a linkage cylinder is passed through the axis of the flocculation screen and the sealing screen, and the outer wall of the linkage cylinder is connected to the sealing screen and linked to each other, and the linkage cylinder is connected to the lifting linkage cylinder arranged at the upper end of the demulsification and flocculation water tank.

[0013] In the above-mentioned wastewater treatment device, the flocculation screen is provided with a flow-through channel, and a sealing plug column for closing the flow-through channel is provided at the lower end of the sealing screen. After the sealing screen rises, an annular flow-through channel is formed between the outer wall of the circumference and the inner wall of the demulsification precipitation chamber.

[0014] In the above-mentioned wastewater treatment device, the mud and water discharge treatment mechanism includes a clean water filtration discharge pipe connected to the precipitation treatment tank body, and the clean water filtration discharge pipe is connected to the municipal sewage pipe.

[0015] In the above-mentioned wastewater treatment device, the precipitation treatment tank body is connected to the sludge compression tank body through a sludge extraction pipe, and the sludge compression tank body is connected to the wastewater collection tank through a wastewater pipe.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: convenient operation, simple process, the treatment process more conforms to the standard, it can effectively remove oil stains and sludge in the wastewater, and adjust the pH value of the wastewater to make it meet the discharge standard. Secondly, through demulsification and flocculation, the oil stain impurities in the wastewater are reduced, and the treated wastewater and sludge are separated and treated, meeting the standards of discharge and recycling, and having good use effects. Description of the Drawings

[0017] Figure 1 is the wastewater treatment flow chart in the present utility model;

[0018] Figure 2 is the structural schematic diagram of the oil-water separation treatment mechanism in the present utility model;

[0019] Figure 3 is the structural schematic diagram of the pH value adjustment component in the present utility model;

[0020] Figure 4 is the structural schematic diagram of the demulsification and flocculation treatment mechanism in the present utility model;

[0021] Figure 5 is the structural schematic diagram of the lifting screen in the present utility model;

[0022] In the figure: wastewater collection tank 1, oil-water separation treatment mechanism 2, oil-water separation box body 21, wastewater inlet 22, oil discharge pipe 23, drain pipe 24, transparent viewing window 25, oil discharge valve 26, drain valve 27, pH value adjustment component 3, pH adjustment water tank 31, water inlet pipe 32, water guide pipe 33, liquid medicine supply structure 34, acidic liquid medicine tank 341, alkaline liquid medicine tank 342, acidic medicine supply pipe 343, alkaline medicine supply pipe 344, medicine supply valve 345, pH value detection module 35, water level gauge 36, demulsification and flocculation treatment mechanism 4, demulsification and flocculation water tank 41, demulsification precipitation chamber 42, flocculation reaction chamber 43, lifting screen structure 44, flocculation screen 441, sealing screen 442, linkage cylinder body 443, lifting linkage cylinder 444, flow-through channel 445, sealing plug column body 446, annular flow-through channel 447, liquid addition pipe 45, water inlet pipe 46, diversion funnel 47, sediment treatment tank body 5, mud and water discharge treatment mechanism 6, clean water filtration and discharge pipe 61, municipal sewage pipe 62, sludge extraction pipe 63, sludge compression tank body 64, wastewater pipe 65. Detailed implementation mode

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings and specific implementation modes.

[0024] As Figures 1-5 shown, a wastewater treatment device includes a wastewater collection tank 1, the wastewater collection tank 1 is connected to an oil-water separation treatment mechanism 2, the oil-water separation treatment mechanism 2 is connected to a pH value adjustment component 3, and the pH value adjustment component 3 is connected to a demulsification and flocculation treatment mechanism 4. The demulsification and flocculation treatment mechanism 4 is connected to a sediment treatment tank body 5, and the wastewater sequentially passes through the oil-water separation treatment mechanism 2, the pH value adjustment component 3, the demulsification and flocculation treatment mechanism 4, and the sediment treatment tank body 5 and then is treated by a mud and water discharge treatment mechanism 6.

[0025] Among them, the oil-water separation treatment mechanism 2 includes an oil-water separation box body 21. The upper end of the oil-water separation box body 21 has a wastewater inlet 22. The upper side of the outer wall of the oil-water separation box body 21 is provided with an oil discharge pipe 23, and the lower side has a drain pipe 24. A longitudinally arranged transparent viewing window 25 is provided on the oil-water separation box body 21.

[0026] Obviously, an oil discharge valve 26 is provided on the oil discharge pipe 23, and a drain valve 27 is provided on the drain pipe 24.

[0027] The oil-water separation treatment mechanism 2 mainly discharges the oil floating on the upper layer by utilizing the characteristics of oil-water separation, and the separated wastewater is then discharged to the pH adjustment water tank 31 for pH adjustment.

[0028] Furthermore, the pH value adjusting component 3 includes a pH adjusting water tank 31, and a water inlet pipe 32 connected to the drain pipe 24 and a water guide pipe 33 for discharging the regulated water flow are respectively provided at the bottom of the pH adjusting water tank 31, and a liquid supply structure 34 is respectively connected to the upper end of the pH adjusting water tank 31, and a pH value detection module 35 is provided at the bottom of the pH adjusting water tank 31, and a water level meter 36 is provided in the pH adjusting water tank 31.

[0029] Furthermore, the liquid medicine supply structure 34 includes an acidic liquid medicine tank 341 and an alkaline liquid medicine tank 342, and the acidic liquid medicine tank 341 and the alkaline liquid medicine tank 342 are connected to the pH adjustment water tank 31 through an acidic dosing pipe 343 and an alkaline dosing pipe 344 respectively, and a dosing valve 345 is provided on the acidic dosing pipe 343 and the alkaline dosing pipe 344.

[0030] The pH value detection module 35 detects the acidity and alkalinity of the wastewater, and the water level is detected by the water level meter 36, and then the acid solution or alkaline solution is input through the solution supply structure 34 for neutralization treatment.

[0031] Specifically, the demulsification and flocculation treatment mechanism 4 includes a demulsification and flocculation water tank 41, which has a demulsification and sedimentation chamber 42 and a flocculation reaction chamber 43, a lifting screen structure 44 is provided between the demulsification and sedimentation chamber 42 and the flocculation reaction chamber 43, a plurality of liquid adding pipes 45 are provided at the upper end of the demulsification and flocculation water tank 41, and a water inlet pipe 46 is provided on the upper side of the outer wall of the demulsification and flocculation water tank 41 and a diversion funnel 47 is provided on the lower side.

[0032] The demulsification and flocculation treatment mechanism 4 is mainly used to quickly separate the emulsion between the oil and water phases to achieve the purpose of oil-water separation, so that the emulsion floats in the demulsification sedimentation chamber 42, and then drives the sealing screen 442 to separate from the flocculation screen 441 through the descending screen structure 44, thereby opening the annular flow channel 447, so that the separated water flow enters the flocculation reaction chamber 43.

[0033] More specifically, the lifting screen structure 44 includes a flocculation screen 441, a sealing screen 442 is inserted into the upper end surface of the flocculation screen 441, a linkage cylinder 443 is axially passed through the flocculation screen 441 and the sealing screen 442, and the outer wall of the linkage cylinder 443 is connected to the sealing screen 442 and linked to each other, and the linkage cylinder 443 is connected to a lifting linkage cylinder 444 arranged at the upper end of the demulsification flocculation water tank 41.

[0034] In detail, a flow channel 445 is provided on the flocculation screen 441, and a sealing plug-in column 446 for closing the flow channel 445 is provided at the lower end of the sealing screen 442. After the sealing screen 442 rises, an annular flow channel 447 is formed between the circumferential outer wall and the inner wall of the demulsification sedimentation chamber 42.

[0035] The demulsification and flocculation treatment mechanism 4 is mainly used to rapidly separate the emulsified substances between the oil and water phases, achieving the purpose of oil-water separation, making the emulsified substances float in the demulsification precipitation chamber 42, and then driving the sealing screen 442 away from the flocculation screen 441 through the down-type screen structure 44 to open the annular overflow channel 447, so that the separated water flow enters the flocculation reaction chamber 43.

[0036] After entering the flocculation reaction chamber 43, a flocculant is used to aggregate the suspended solid particles in the water to form larger particles, accelerating the precipitation of the suspended substances and improving the purification effect of the water quality.

[0037] Preferably, the sludge and water discharge treatment mechanism 6 includes a clean water filtration and discharge pipe 61 connected to the precipitation treatment tank body 5, and the clean water filtration and discharge pipe 61 is connected to the municipal sewage pipe 62.

[0038] The clean water filtration and discharge pipe 61 is filtered by activated carbon and quartz sand, and the pH value of the water discharged to the municipal sewage pipe 62 is in the range of 6.5 - 7.5.

[0039] In addition, the precipitation treatment tank body 5 is connected to the sludge compression tank body 64 through a sludge extraction pipe 63, and the sludge compression tank body 64 is connected to the wastewater collection tank 1 through a wastewater pipe 65.

[0040] The sludge compressed by the sludge compression tank body 64 is dried to form sludge blocks, which is convenient for recycling.

[0041] In summary, the principle of this embodiment is as follows: the oil stains in the wastewater are discharged through the oil-water separation treatment mechanism 2, then the pH value is adjusted through the pH adjustment water tank 31, and then the demulsification and flocculation treatment mechanism 4 is used to separate the emulsified substances between the oil and water phases and purify the precipitation of the water quality. Finally, the precipitated wastewater is filtered and discharged to the municipal sewage pipe, and the sludge is compressed and treated, and the compressed wastewater is returned to the wastewater collection tank 1 again.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0043] Although terms such as wastewater collection tank 1, oil-water separation treatment mechanism 2, oil-water separation box body 21, wastewater inlet 22, oil discharge pipe 23, drain pipe 24, transparent viewing window 25, oil discharge valve 26, drain valve 27, pH value adjustment component 3, pH adjustment water tank 31, water inlet pipe 32, water guide pipe 33, liquid medicine supply structure 34, acidic liquid medicine tank 341, alkaline liquid medicine tank 342, acidic medicine supply pipe 343, alkaline medicine supply pipe 344, medicine supply valve 345, pH value detection module 35, water level gauge 36, demulsification and flocculation treatment mechanism 4, demulsification and flocculation water tank 41, demulsification and precipitation chamber 42, flocculation reaction chamber 43, lifting screen structure 44, flocculation screen 441, sealing screen 442, linkage cylinder body 443, lifting linkage cylinder 444, overflow channel 445, sealed plug column body 446, annular overflow channel 447, liquid addition pipe 45, water inlet pipe 46, diversion funnel 47, sediment treatment tank body 5, mud and water discharge treatment mechanism 6, clean water filtration and discharge pipe 61, municipal sewage pipe 62, sludge extraction pipe 63, sludge compression tank body 64, wastewater pipe 65 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. A wastewater treatment device, comprising a wastewater collection tank (1), characterized in that: The wastewater collection tank (1) is connected to an oil-water separation treatment mechanism (2), the oil-water separation treatment mechanism (2) is connected to a pH value adjustment component (3), and the pH value adjustment component (3) is connected to a demulsification and flocculation treatment mechanism (4), and the demulsification and flocculation treatment mechanism (4) is connected to a sedimentation treatment tank (5), and the wastewater passes through the oil-water separation treatment mechanism (2), the pH value adjustment component (3), the demulsification and flocculation treatment mechanism (4), and the sedimentation treatment tank (5) in sequence, and then is treated by the muddy water discharge treatment mechanism (6).

2. A wastewater treatment device according to claim 1, characterized in that: The oil-water separation treatment mechanism (2) comprises an oil-water separation box (21), the upper end of the oil-water separation box (21) is provided with a wastewater inlet (22), the upper side of the outer wall of the oil-water separation box (21) is provided with an oil drain pipe (23) and the lower side is provided with a drain pipe (24), and the oil-water separation box (21) is provided with a transparent window (25) arranged in a longitudinal direction.

3. A wastewater treatment device according to claim 2, characterized in that: The oil drain pipe (23) is provided with an oil drain valve (26), and the drain pipe (24) is provided with a drain valve (27).

4. A wastewater treatment device according to claim 2, characterized in that: The pH value adjustment component (3) comprises a pH adjustment water tank (31), the bottom of the pH adjustment water tank (31) is provided with a water inlet pipe (32) connected to a drain pipe (24) and a water guide pipe (33) for discharging adjusted water flow, the upper end of the pH adjustment water tank (31) is connected to a liquid medicine supply structure (34), and the bottom of the pH adjustment water tank (31) is provided with a pH value detection module (35), and a water level meter (36) is provided in the pH adjustment water tank (31).

5. A wastewater treatment device according to claim 4, characterized in that: The liquid medicine supply structure (34) comprises an acidic liquid medicine tank (341) and an alkaline liquid medicine tank (342). The acidic liquid medicine tank (341) and the alkaline liquid medicine tank (342) are connected to the pH adjustment water tank (31) via an acidic medicine dosing pipe (343) and an alkaline medicine dosing pipe (344), respectively. The acidic medicine dosing pipe (343) and the alkaline medicine dosing pipe (344) are both provided with a dosing valve (345).

6. A wastewater treatment device according to claim 1, characterized in that: The demulsification and flocculation treatment mechanism (4) comprises a demulsification and flocculation water tank (41), wherein the demulsification and flocculation water tank (41) has a demulsification and sedimentation chamber (42) and a flocculation reaction chamber (43), a lifting screen structure (44) is provided between the demulsification and sedimentation chamber (42) and the flocculation reaction chamber (43), a plurality of liquid adding pipes (45) are provided at the upper end of the demulsification and flocculation water tank (41), and a water inlet pipe (46) is provided on the upper side of the outer wall of the demulsification and flocculation water tank (41) and a flow guide funnel (47) is provided on the lower side.

7. A wastewater treatment device according to claim 6, characterized in that: The lifting screen structure (44) comprises a flocculation screen (441), a sealing screen (442) is inserted into the upper end surface of the flocculation screen (441), a linkage cylinder (443) is axially passed through the flocculation screen (441) and the sealing screen (442), and the outer wall of the linkage cylinder (443) is connected to the sealing screen (442) and linked to each other, and the linkage cylinder (443) is connected to a lifting linkage cylinder (444) arranged at the upper end of the demulsification flocculation water tank (41).

8. A wastewater treatment device according to claim 7, characterized in that: The flocculation screen (441) is provided with a flow passage (445), and the lower end of the sealing screen (442) is provided with a sealing plug-in column (446) for closing the flow passage (445). When the sealing screen (442) rises, an annular flow passage (447) is formed between the circumferential outer wall and the inner wall of the demulsification sedimentation chamber (42).

9. A wastewater treatment device according to claim 1, characterized in that: The muddy water discharge treatment mechanism (6) comprises a clean water filter discharge pipe (61) connected to the sedimentation treatment tank (5), and the clean water filter discharge pipe (61) is connected to the municipal sewage pipe (62).

10. A wastewater treatment device according to claim 9, characterized in that: The sedimentation treatment tank (5) is connected to the sludge compression tank (64) via a sludge extraction pipe (63), and the sludge compression tank (64) is connected to the wastewater collection tank (1) via a wastewater pipe (65).

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