Environment-friendly multi-purification device and method for sewage treatment

Abstract

The invention discloses an environment-friendly multi-purification device and method for sewage treatment, and relates to the technical field of sewage multi-stage treatment. Comprising a multi-stage filtering device, a permeation filtering piece is installed on the multi-stage filtering device, and a floating oil absorption piece is installed on the permeation filtering piece; the floating oil absorption piece is used for prolonging the service life of the permeation filtering piece; a pretreatment piece is mounted on the multi-stage filtering device; a sampling and mixing part is mounted in the pretreatment part; a sampling control piece is mounted on the pretreatment piece; the pretreatment part is adopted to facilitate pretreatment mixing work of sewage, the sampling control part can be used for automatically controlling accelerated mixing of water stored in the pretreatment part when a worker needs to sample, and the situation that sample sewage is not accurate enough when the sampling position is single can be avoided; the problems that an existing multi-purification device for sewage treatment is not convenient for floating oil removal and is not convenient for premixing and sampling when sewage enters are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of manufacturing special equipment for water pollution environmental protection, more particularly to the field of multi-stage sewage treatment, and specifically to an environmental protection type multi-stage purification device for sewage treatment and a method thereof. BACKGROUND

[0002] In actual sewage treatment work, especially for sewage containing oil, multi-stage treatment is usually required. At present, sewage treatment equipment is widely used and also belongs to special equipment for water pollution environmental protection. By reasonably filtering and removing oil, the quality of sewage purification is improved. Because it involves environmental protection work, the quality of sewage treatment directly affects the discharge standard. The existing multi-stage purification device for sewage treatment is prone to be blocked by oil pollution in multi-stage purification work. It is not convenient to float and remove oil. The traditional oil removal method needs to increase an oil removal section, which affects the purification efficiency. It is not convenient to automatically remove oil during sewage filtration and purification, and it is not convenient to pre-mix sampling when sewage is fed. The traditional sampling method is not accurate in local water sampling in the sewage tank, and impurities are prone to sedimentation. Manual sampling after accelerated mixing of sewage is easy to forget. It is also not convenient to pretreat and adjust the water quality in the early stage.

[0003] Therefore, an environmental protection type multi-stage purification device for sewage treatment and a method thereof are provided. SUMMARY

[0004] The present application relates to the field of manufacturing special equipment for water pollution environmental protection, more particularly to the field of multi-stage sewage treatment, and specifically to an environmental protection type multi-stage purification device for sewage treatment and a method thereof.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an environmental protection type multi-stage purification device for sewage treatment, comprising a multi-stage filtration device, wherein a permeable filter is installed on the multi-stage filtration device, and a floating oil suction element is installed on the permeable filter; the floating oil suction element is used to prolong the service life of the permeable filter; a pretreatment element is installed on the multi-stage filtration device; a sampling and mixing element is installed inside the pretreatment element; a sampling control element is installed on the pretreatment element; the multi-stage filtration device comprises a filtration tank and a drain pipe, the drain pipe is fixedly installed on the side of the filtration tank, and an electromagnetic valve is arranged on the drain pipe; the drain pipe is higher than the bottom of the filtration tank.

[0006] Preferably, the multi-stage filtering device further comprises: a residue discharge pipe, a terminal partition, an ultraviolet sterilization lamp, an anti-disturbance plate and a first filtering plate, three residue discharge pipes are fixedly installed on the side of the filtering pool, and valves are arranged on the three residue discharge pipes respectively; the three residue discharge pipes are used for discharging sediments respectively; the terminal partition is fixedly installed in the filtering pool; the ultraviolet sterilization lamp is fixedly installed in the filtering pool and is used for sterilization; the anti-disturbance plate is fixedly installed in the filtering pool; the anti-disturbance plate is used for reducing water disturbance; the first filtering plate is fixedly installed in the filtering pool and has an arc structure; a filtering slot is arranged on the first filtering plate; and the terminal partition is used for isolating sewage.

[0007] Preferably, the permeation filtering piece comprises: a secondary partition and a lifting shaft, the secondary partition is fixedly installed in the filtering pool; the filtering pool is located between the terminal partition and the anti-disturbance plate; a slot is arranged on the secondary partition; and two lifting shafts are fixedly installed on the secondary partition.

[0008] Preferably, the permeation filtering piece further comprises: a fiber filter pad, the fiber filter pad is fixedly installed on the side of the secondary partition; and the fiber filter pad is used for depth filtration.

[0009] Preferably, the floating oil suction piece comprises: a lifting shielding block, an immersion plate and a floating block, the lifting shielding block is slidingly inserted on the two lifting shafts; the lifting shielding block is attached to the fiber filter pad on the side; the immersion plate is fixedly installed on the side of the lifting shielding block; and the floating block is fixedly installed on the lifting shielding block and is used for floatingly supporting the lifting shielding block.

[0010] Preferably, the floating oil suction piece further comprises: an oil suction pipe and a water pump connecting hose, the oil suction pipe is fixedly installed on the immersion plate; an oil inlet groove is arranged on the top of the oil suction pipe; the water pump connecting hose is fixedly installed on the side of the oil suction pipe and is connected with a water pump; and the oil suction pipe penetrates through the immersion plate.

[0011] Compared with the prior art, the present application has the following beneficial effects: The water pollution environment protection special equipment can assist multi-stage purification treatment when actually treating sewage, can guarantee purification efficiency, and can purify more comprehensively.

[0012] The floating oil suction part can float on the sewage surface, suck and discharge the oil floating on the sewage surface, improve the sewage treatment quality by separating the oil, and is not affected by the liquid level; the lifting shielding block can shield the side of the fiber filter pad, and the lifting shielding block below the floating block acts as a counterweight, so that the oil on the upper layer can be stopped by the lifting shielding block and cannot pass through the fiber filter pad directly, avoiding the problem of oil directly adhering to the fiber filter pad and causing blockage, which can prolong the service life and service period of the fiber filter pad.

[0013] The pretreatment part can be used for pretreatment and mixing of sewage, and the sampling control part can be used for sampling by the worker, the water in the pretreatment part can be accelerated and mixed by the sampling control part when the worker needs to sample, the single sampling position can be avoided, the sample sewage cannot be accurate, and the whole problem cannot be accurately reflected, the oil and sediment impurities can be mixed, and the whole can be discharged, so that the sample can be accurately analyzed, and the first filter plate can be cleaned at one time when the sewage is mixed by the sampling and mixing part, and the blockage rate of the first filter plate is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a 3D modeling diagram of the environmental protection type multi-purification device for sewage treatment of the application; Figure 2 It is a rear side structure schematic view of the environmental protection type multi-purification device for sewage treatment of the application; Figure 3 It is an internal structure sectional view of the environmental protection type multi-purification device for sewage treatment of the application; Figure 4 It is a multi-stage filtration device structure schematic view of the application; Figure 5 It is a permeation filtration part structure schematic view of the application; Figure 6 It is a floating oil suction part structure schematic view of the application; Figure 7 It is a pretreatment part structure schematic view of the application; Figure 8 It is a sampling and mixing part structure schematic view of the application; Figure 9 It is an internal structure sectional view of the sampling control part of the application; Figure 10 It is a multi-stage purification area schematic view of the application; Figure 11 It is a whole structure schematic view of the environmental protection type multi-purification device for sewage treatment of the application.

[0015] In the figure: 1, multi-stage filtering device; 101, filtering pool; 102, drain pipe; 103, residue discharge pipe; 104, end partition; 105, ultraviolet sterilization lamp; 106, anti-disturbance plate; 107, first-stage filtering plate; 2, permeation filtering piece; 201, second-stage partition; 202, lifting shaft; 203, fiber filter pad; 3, floating oil absorption piece; 301, lifting blocking block; 3011, water immersion plate; 302, floating block; 303, oil absorption pipe; 304, water pump connecting hose; 4, pretreatment piece; 401, premixing box; 402, discharge pipe; 403, water inlet pipe; 5, sampling mixing piece; 501, mixing motor; 502, rotating shaft; 503, mixing rod; 504, brushing frame; 6, sampling control piece; 601, sampling pipe; 602, closing stud; 603, extension column; 604, hand wheel; 605, control switch. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] Embodiment one: please refer to Figures 1 to 11 as shown: The water pollution environmental protection special equipment provides a technical solution: an environmental protection type multi-purification device for sewage treatment, comprising a multi-stage filtering device 1, a permeation filtering piece 2 is installed on the multi-stage filtering device 1, and a floating oil absorption piece 3 is installed on the permeation filtering piece 2; the floating oil absorption piece 3 is used to prolong the service life of the permeation filtering piece 2; a pretreatment piece 4 is installed on the multi-stage filtering device 1; a sampling mixing piece 5 is installed in the pretreatment piece 4; a sampling control piece 6 is installed on the pretreatment piece 4; the multi-stage filtering device 1 comprises a filtering pool 101 and a drain pipe 102, the drain pipe 102 is fixedly installed on the side of the filtering pool 101, and an electromagnetic valve is arranged on the drain pipe 102; the drain pipe 102 is higher than the bottom of the filtering pool 101.

[0018] The multistage filtering device 1 further comprises a residue discharge pipe 103, a terminal partition plate 104, an ultraviolet sterilization lamp 105, a disturbance prevention plate 106 and a first filtering plate 107. Three residue discharge pipes 103 are fixedly installed on the side of the filtering pool 101, and a valve is arranged on each of the three residue discharge pipes 103. The three residue discharge pipes 103 are used for assisting in residue discharge when the structure is cleaned, and the valves on the three residue discharge pipes 103 are opened. The three residue discharge pipes 103 are used for discharging sediment. The terminal partition plate 104 is fixedly installed in the filtering pool 101. The ultraviolet sterilization lamp 105 is fixedly installed in the filtering pool 101 and is used for sterilization. The disturbance prevention plate 106 is fixedly installed in the filtering pool 101 and is used for reducing water disturbance. The first filtering plate 107 is fixedly installed in the filtering pool 101 and has an arc structure. A filtering slot is arranged on the first filtering plate 107. The terminal partition plate 104 is used for isolating sewage. The permeation filtering piece 2 comprises a second partition plate 201 and a lifting shaft 202. The second partition plate 201 is fixedly installed in the filtering pool 101. The filtering pool 101 is located between the terminal partition plate 104 and the disturbance prevention plate 106. A slot is arranged on the second partition plate 201. Two lifting shafts 202 are fixedly installed on the second partition plate 201. The permeation filtering piece 2 cooperates with the multistage filtering device 1 to facilitate multistage purification treatment during actual sewage treatment, ensure purification efficiency, and comprehensively purify the sewage through multiple filtering.

[0019] The permeable filter 2 further comprises a fiber filter pad 203, and the fiber filter pad 203 is fixedly installed on the side of the secondary baffle 201; the fiber filter pad 203 is used for deep filtration; the floating oil suction part 3 comprises a lifting shielding block 301, a water immersion plate 3011 and a floating block 302, the lifting shielding block 301 is slidingly inserted on the two lifting shafts 202; the lifting shielding block 301 is attached to the side of the fiber filter pad 203; the water immersion plate 3011 is fixedly installed on the side of the lifting shielding block 301; the floating block 302 is fixedly installed on the lifting shielding block 301; the floating block 302 is used for floatingly supporting the lifting shielding block 301; the floating oil suction part 3 further comprises an oil suction pipe 303 and a water pump connecting hose 304, the oil suction pipe 303 is fixedly installed on the water immersion plate 3011; the oil suction pipe 303 is provided with an oil inlet groove at the top; the water pump connecting hose 304 is fixedly installed on the side of the oil suction pipe 303, and the water pump connecting hose 304 is externally connected with a water pump; the oil suction pipe 303 passes through the water immersion plate 3011 at the top; the floating oil suction part 3 can be conveniently floated on the sewage liquid surface, and the oil stains floating on the surface of the sewage can be sucked and discharged; the sewage treatment quality is improved by separating the oil stains, and is not affected by the liquid level; the oil stains are collected and floated, and are quickly discharged; more importantly, the lifting shielding block 301 can be shielded on the side of the fiber filter pad 203, the lifting shielding block 301 is located below the floating block 302 to play a role of counterweight, so that the upper oil stains can be blocked by the lifting shielding block 301 and cannot directly pass through the fiber filter pad 203, thereby avoiding the problems of blockage and the like caused by the direct adhesion of the oil stains on the fiber filter pad 203.

[0020] The structure can improve the service life and use cycle of the fiber filter pad 203, the oil suction pipe 303 is directly used for floating oil suction, the lower sewage can directly pass through the fiber filter pad 203 without affecting, the oil stains can be isolated, the sewage purification efficiency is ensured, an oil removal section does not need to be additionally added, and the cost is lower; when the sewage enters the secondary filtration and oil removal section, the floating block 302 moves upward together under the action of the buoyancy along with the rising of the sewage level, drives the lifting shielding block 301 to slide on the lifting shaft 202, cooperates with the blocking of the lifting shielding block 301, the oil stains are isolated, and the oil suction pipe 303 is below the sewage liquid surface at this time, so that the floating oil stains can be sucked and discharged by the water pump connected with the water pump connecting hose 304.

[0021] The second embodiment is based on the first embodiment. The pretreatment part 4 comprises a premixing tank 401, a discharge pipe 402, and a water inlet pipe 403. The premixing tank 401 is fixedly installed on the filtering pool 101. The discharge pipe 402 is fixedly installed at the bottom of the premixing tank 401, and an electromagnetic valve is arranged on the discharge pipe 402. A dosing port is arranged at the top of the premixing tank 401. The water inlet pipe 403 is fixedly installed on the side of the premixing tank 401. The sampling and mixing part 5 comprises a mixing motor 501, a rotating shaft 502, mixing rods 503, and a brushing frame 504. The mixing motor 501 is fixedly installed on the premixing tank 401. The output shaft of the mixing motor 501 penetrates through the premixing tank 401. The mixing motor 501 is connected with an external power switch. The rotating shaft 502 is fixedly installed on the output shaft of the mixing motor 501. The rotating shaft 502 is rotatably sleeved on the premixing tank 401. Three rows of mixing rods 503 are fixedly installed on the rotating shaft 502, and the mixing rods 503 are arranged inside the premixing tank 401. The brushing frame 504 is fixedly installed on the rotating shaft 502, and a row of bristles is arranged on the side of the brushing frame 504. The bristles on the side of the brushing frame 504 are used for brushing and cleaning the first-stage filter plate 107. The sampling control part 6 comprises a sampling pipe 601, a closing stud 602, an extension column 603, a hand wheel 604, and a control switch 605. The extension column 603 is used for preventing water from being stored in the sampling pipe 601, so as to generate a dead zone during mixing. The sampling pipe 601 is fixedly installed on the side of the premixing tank 401. The closing stud 602 is threadedly connected to the sampling pipe 601. The extension column 603 is fixedly installed at the end of the closing stud 602, and the extension column 603 penetrates through the sampling pipe 601. The hand wheel 604 is fixedly installed on the closing stud 602. The end of the hand wheel 604 is attached to the end of the sampling pipe 601. The control switch 605 is fixedly installed on the sampling pipe 601. The hand wheel 604 is pressed and attached to the control switch 605. The control switch 605 is electrically connected with the mixing motor 501. The pretreatment part 4 can facilitate the pretreatment and mixing of sewage. In combination with the sampling control part 6, the staff can sample the sewage. The method of collecting sewage by the pretreatment part 4 before sampling is more referable, and can improve the sampling accuracy. The sampling control part 6 can automatically control the accelerated mixing of the stored water in the pretreatment part 4 when the staff needs to sample, so as to avoid the inaccuracy of the sample sewage when the sampling position is single, and cannot accurately reflect the overall problem. The method can promote the mixing of oil stains and sediment impurities, avoid manual forgetting of mixing, and facilitate accurate analysis of the sample.

[0022] The sampling mixing element 5 can assist in cleaning the primary filter plate 107 at one time when mixing sewage, reducing the blockage rate of the primary filter plate 107. After the water is stored in the premixing box 401, the closure stud 602 is rotated and detached. At this time, once the rotating hand wheel 604 drives the closure stud 602 to move outward, the rotating hand wheel 604 will be separated from the control switch 605 and will no longer be squeezed. However, the hand wheel 604 still needs to be rotated for a period of time to completely detach the closure stud 602. Before this, the control switch 605 will control the mixing motor 501 to drive the mixing rod 503 to rotate, so as to mix the sewage in the premixing box 401 uniformly, ensuring that the sewage flowing out of the sampling pipe 601 has reference value.

[0023] An environment-friendly sewage treatment method: 1) When adjusting the pH value of the sewage, the medicine is directly added at the medicine adding port provided at the top of the premixing box 401 for pretreatment adjustment. 2) After the sewage is filtered by the primary filter plate 107, it is filtered by the fiber filter pad 203 and then sterilized by the ultraviolet sterilization lamp 105. 3) Under the action of the buoyancy of the sewage, the floating block 302 floats on the liquid surface, the oil suction pipe 303 is below the liquid surface of the sewage, the water pump connected with the hose 304 is externally connected with a water pump, and the water pump is started to suck and discharge the floating oil stains through the oil suction pipe 303.

[0024] The working principle of this embodiment is as follows: During sewage treatment, sewage is first added to the premixing tank 401 by connecting the inlet pipe 403 to a sewage pump or sewage source. The sewage is then discharged to the filtration tank 101 by opening the solenoid valve on the outlet pipe 402, where it undergoes first-stage filtration using the primary filter plate 107. Simultaneously, when water quality testing or sampling is required, the sealing stud 602 can be rotated and disassembled after water has been stored in the premixing tank 401. At this point, rotating the handwheel 604 will move the sealing stud 602. When moving the sample outward, rotating the handwheel 604 will first separate from the control switch 605, and the pressure will cease. However, the handwheel 604 still needs to be rotated for a period of time to completely disassemble the sealing stud 602. Before this, the control switch 605 will control the mixing motor 501 to drive the mixing rod 503 to rotate, mixing the wastewater inside the premixing tank 401 to ensure that the wastewater flowing out of the sampling tube 601 has reference value. A container can be used to collect the wastewater under the sampling tube 601. After subsequent testing is completed, when pH adjustment or other work is required, the wastewater can be directly collected in the premixing tank 401. Chemicals can be added through the dosing port located at the top of the mixing tank 401. Simultaneously, when the mixing motor 501 starts, it also drives the brush holder 504 to rotate and brush the primary filter plate 107. The anti-disturbance plate 106, in conjunction with the brush holder 504, reduces disturbance to the secondary filtration oil removal section caused by the rotation of the brush holder 504. As wastewater from the primary filtration section overflows from the top of the anti-disturbance plate 106 and flows into the secondary filtration oil removal section, the float 302 rises along with the wastewater level due to buoyancy, causing the lifting baffle block 301 to slide on the lifting shaft 202. When the pump moves, the oil is isolated by the stop of the lifting baffle block 301. At this time, the oil suction pipe 303 is below the sewage surface, and the floating oil can be pumped out by the water pump connected to the hose 304. The sewage is further filtered by the fiber filter pad 203 and flows into the ultraviolet sterilization section, and the ultraviolet sterilization lamp 105 is turned on to sterilize. As the water level continues to rise, it will overflow from the top of the end baffle 104 and flow into the settling section. After settling, the solenoid valve on the drain pipe 102 can be opened to discharge the purified sewage.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An environmentally friendly wastewater treatment multi-stage purification device, comprising a multi-stage filtration device (1), wherein a permeation filter element (2) is installed on the multi-stage filtration device (1), characterized in that: A floating oil suction element (3) is installed on the permeation filter element (2); the floating oil suction element (3) is used to improve the service life of the permeation filter element (2); The multi-stage filtration device (1) is equipped with a pretreatment component (4); a sampling mixing component (5) is installed inside the pretreatment component (4); and a sampling control component (6) is installed on the pretreatment component (4). The multi-stage filtration device (1) includes a filtration pool (101) and a drain pipe (102). The drain pipe (102) is fixedly installed on the side of the filtration pool (101), and a solenoid valve is provided on the drain pipe (102).

2. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 1, characterized in that: The multi-stage filtration device (1) further includes: a slag discharge pipe (103), an end baffle (104), an ultraviolet germicidal lamp (105), an anti-disturbance plate (106), and a primary filter plate (107).

3. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 2, characterized in that: The filter pool (101) has three slag discharge pipes (103) fixedly installed on its side, and each of the three slag discharge pipes (103) is equipped with a valve; the three slag discharge pipes (103) are used to discharge sludge.

4. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 2, characterized in that: An end baffle (104) is fixedly installed inside the filtration pool (101); an ultraviolet germicidal lamp (105) is fixedly installed inside the filtration pool (101) for sterilization.

5. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 2, characterized in that: The anti-disturbance plate (106) is fixedly installed inside the filter pool (101); the anti-disturbance plate (106) is used to reduce water disturbance.

6. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 2, characterized in that: The filter tank (101) is equipped with a primary filter plate (107) which is arc-shaped; the primary filter plate (107) is provided with a row of filter channels; the end partition (104) is used to isolate sewage.

7. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 2, characterized in that: The permeation filter element (2) includes: a secondary baffle (201) and a lifting shaft (202). The secondary baffle (201) is fixedly installed inside the filter pool (101). The filter pool (101) is located between the end baffle (104) and the anti-disturbance plate (106). A row of through grooves is provided on the secondary baffle (201). Two lifting shafts (202) are fixedly installed on the secondary baffle (201).

8. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 7, characterized in that: The permeation filter element (2) further includes: a fiber filter pad (203), on which the fiber filter pad (203) is fixedly installed on the side of the secondary partition (201); the fiber filter pad (203) is used for deep filtration.

9. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 7, characterized in that: The floating oil suction component (3) includes: a lifting shield block (301), a water immersion plate (3011), and a float block (302). The lifting shield block (301) is slidably inserted into two lifting shafts (202). The side of the lifting shield block (301) is attached to the fiber filter pad (203). The water immersion plate (3011) is fixedly installed on the side of the lifting shield block (301). The float block (302) is fixedly installed on the lifting shield block (301). The float block (302) is used to float and support the lifting shield block (301).

10. The environmentally friendly multi-stage purification device for wastewater treatment according to claim 9, characterized in that: The floating oil suction component (3) further includes: an oil suction pipe (303) and a water pump connecting hose (304). The oil suction pipe (303) is fixedly installed on the immersion plate (3011). The top of the oil suction pipe (303) is provided with an oil inlet groove. The side of the oil suction pipe (303) is fixedly installed with a water pump connecting hose (304), and a water pump is connected to the outside of the water pump connecting hose (304). The top of the oil suction pipe (303) passes through the immersion plate (3011).

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