Integrated filtration method sewage treatment process suitable for long delta polder

Abstract

The application discloses a comprehensive filtering method sewage treatment process suitable for the Yangtze River Delta polder area, and comprises the following steps: sewage of the Yangtze River Delta polder area is pumped to a second treatment tank through a water inlet pipe, and the sewage of the Yangtze River Delta polder area is preliminarily filtered; the sewage filtered by the second treatment tank is filtered again by a third treatment tank; a first treatment tank is a flocculation tank, and the sewage of the Yangtze River Delta polder area is further purified; wherein, by controlling the work of a driving assembly, a slag scraping block is driven to move along a waste slag groove, and the dirt in the waste slag groove is driven to the two sides of the waste slag groove and into a slag discharge pipe; meanwhile, in the moving process of the slag scraping block, the slag scraping block drives a scraper to move up and down along a filter plate through a movable rod, and the sundries on the filter plate are removed; the application can remove the sundries filtered by the second treatment tank in time, and the sundries are compressed and discharged from the second treatment tank, thereby solving the problem that in the prior art, the sundries clogging the surface of a filter screen are cleaned manually, and a lot of manpower is needed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a comprehensive filtration method sewage treatment process suitable for the Yangtze River Delta polder area. BACKGROUND

[0002] Chinese patent CN100351182C discloses a comprehensive filtration method sewage treatment process and equipment, which includes nine process steps, and the sewage treatment equipment is assembled from a regulating water tank, a dosing tank, a reaction water tank, a sedimentation water tank, a dry water tank and other main components, and a self-priming pump, a slurry pump, a valve, a pipeline and other general parts;

[0003] In the prior art, when sewage in the Yangtze River Delta polder area is treated, the sewage needs to be filtered multiple times, and a large amount of sundries will block the through holes on the surface of the filter screen during the filtering process. When the sundries blocking the surface of the filter screen are cleaned, the manual fishing method is usually used, which requires a lot of manpower. SUMMARY

[0004] The present application relates to the technical field of sewage treatment, in particular to a comprehensive filtration method sewage treatment process suitable for the Yangtze River Delta polder area.

[0005] The object of the present application can be achieved by the following technical solutions:

[0006] The comprehensive filtration method sewage treatment process suitable for the Yangtze River Delta polder area comprises the following steps:

[0007] The sewage in the Yangtze River Delta polder area is pumped into the second treatment tank through the water inlet pipe to preliminarily filter the sewage in the Yangtze River Delta polder area; the third treatment tank filters the sewage filtered by the second treatment tank again; and the first treatment tank is a flocculation tank for further purifying the sewage in the Yangtze River Delta polder area.

[0008] The driving assembly is controlled to drive the slag scraping block to move along the waste slag groove, drive the waste in the waste slag groove to the two sides of the waste slag groove, and enter the slag discharge pipe; at the same time, the slag scraping block moves in the moving process, and the movable rod drives the scraper to move up and down along the filter plate to remove the sundries on the filter plate.

[0009] As a further scheme of the present application: when the scraper moves to the carrier plate, the gas cylinder is started to drive a group of moving plates to move, and through the connecting structure of the first connecting rod and the second connecting rod, another group of moving plates are driven to move, so that the two slag removal plates move towards the carrier plate, and the sundries scraped off the scraper are pushed onto the carrier plate to store the filtered sundries.

[0010] As a further scheme of the present application: the cavity surrounded by the carrier plate and the second treatment box is compressed by the scraper, and then the sealing door at the slag discharge port is opened, so that the subsequent collection of the sundries is facilitated.

[0011] As a further scheme of the present application: the first treatment box and the third treatment box are provided with one, and the second treatment box is provided with two.

[0012] As a further scheme of the present application: the communication side wall of the second treatment box and the third treatment box is provided with a filter plate, and the communication side wall of the first treatment box and the third treatment box is provided with a filter plate.

[0013] As a further scheme of the present application: the filter plate is provided with a sundry removal mechanism, and the sundry removal mechanism comprises:

[0014] The slag scraping block is located in the waste slag groove and moves along the waste slag groove, the top of the slag scraping block is movably connected with one end of the movable rod, and the other end of the movable rod is movably connected with the scraper. The scraper is in contact with the filter plate and moves up and down along the filter plate.

[0015] As a further scheme of the present application: the waste slag groove is opened in the bottom inner wall of the corresponding second treatment box and third treatment box.

[0016] As a further scheme of the present application: the scraper is a rectangular plate body.

[0017] As a further scheme of the present application: a first connecting rod is rotatably arranged at the center of the inner top surface of the third treatment box, the two ends of the first connecting rod are movably connected with a second connecting rod, and the end of the second connecting rod away from the first connecting rod is connected with a moving plate. The moving plate is installed on the top surface of the third treatment box through a slide rail, and the moving plate is connected with the slag removal plate.

[0018] As a further scheme of the present application: a carrier plate is arranged above the inner cavity of the second treatment box, and the horizontal height of the carrier plate is equal to the horizontal height of the slag removal plate.

[0019] The present application has the following advantages:

[0020] The structure of the treatment box realizes the twice filtering mode of first diversion and then collection, can effectively filter and purify the sewage in the Yangtze River Delta polder area, and the twice filtering can mutually relieve each other, improve the service life of the device, and avoid the problem that the single filtering structure works for a short saturation period.

[0021] The sundry removal mechanism can not only clean and remove the sundries on the surface of the filter plate, but also scrape part of the sundries remaining on the surface of the scraper downward and discharge them from the slag discharge pipe, thereby greatly improving the sewage filtering efficiency in the Yangtze River Delta polder area.

[0022] The slag cleaning mechanism of the present application can clean the larger impurities filtered from the second treatment tank in time, and discharge them from the second treatment tank, solving the problem in the prior art that manual cleaning of the impurities clogging the surface of the filter screen requires a lot of manpower. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below with reference to the drawings.

[0024] Figure 1 is a structural schematic diagram of the present application;

[0025] Figure 2 is a structural schematic diagram of the second treatment tank and the third treatment tank in the present application;

[0026] Figure 3 is a structural schematic diagram of the filter plate in the present application;

[0027] Figure 4 is a structural schematic diagram of the impurity removing mechanism in the present application;

[0028] Figure 5 is a structural schematic diagram of the slag cleaning mechanism in the present application.

[0029] In the drawings: 1, treatment tank; 2, first treatment tank; 3, water inlet pipe; 4, second treatment tank; 5, third treatment tank; 6, filter plate; 7, carrier plate; 8, slag discharge port; 9, scraper; 10, slag cleaning mechanism; 101, slag cleaning plate; 102, air cylinder; 103, moving plate; 104, sliding rail; 105, first connecting rod; 106, second connecting rod; 11, motor; 12, screw rod; 13, slag scraping block; 14, waste slag groove; 15, movable rod; 16, slag discharge pipe; 17, baffle. DETAILED DESCRIPTION

[0030] 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 labor fall within the scope of protection of the present application.

[0031] Embodiment 1

[0032] Please refer to Figures 1-5 The present application is a comprehensive filtration method sewage treatment device suitable for the Yangtze River Delta polder area, which comprises a treatment tank 1, a first treatment tank 2, a water inlet pipe 3, a second treatment tank 4, and a third treatment tank 5.

[0033] The processing box 1 comprises a first processing box 2, a second processing box 4 and a third processing box 5, the first processing box 2 and the third processing box 5 are provided with one, and the second processing box 4 is provided with two, wherein the layout of the processing box 1 is as follows: the first processing box 2 and the third processing box 5 are arranged side by side, the first processing box 2 and the third processing box 5 are communicated with each other, the two sides of the third processing box 5 are respectively provided with the second processing box 4, the third processing box 5 and the second processing box 4 are communicated with each other, but the first processing box 2 and the second processing box 4 are not communicated;

[0034] The second processing box 4 is provided with a water inlet pipe 3, the second processing box 4 is a filter box, and the sewage in the Yangtze River Delta polder area is pumped into the second processing box 4 through the water inlet pipe 3 to preliminarily filter the sewage in the Yangtze River Delta polder area.

[0035] The third processing box 5 is also a filter box, and the third processing box 5 filters the sewage filtered by the second processing box 4 again.

[0036] The first processing box 2 is a flocculation box, and the drug and the sewage are reacted by adding the drug, so that the drug and the sewage are completely mixed, flocculation and sedimentation are carried out, and after sedimentation, two substances of clarified liquid and sludge are formed, the clarified liquid is filtered and discharged; the drug includes decolorizing flocculant, deodorizing flocculant, sedimentation flocculant, disinfecting agent, sedimentation flocculant, deodorizing flocculant and the like, and the sewage in the Yangtze River Delta polder area is further purified and treated;

[0037] The aperture of the second processing box 4 is larger than that of the first processing box 2, so that the sewage in the Yangtze River Delta polder area is filtered twice, and the first filtration removes large sundries, and the second filtration removes small sundries, the large sundries are branches, leaves and the like floating objects, and the small sundries are algae and the like floating objects in water.

[0038] The structure of the processing box 1 realizes the twice filtration mode of first diversion and then collection, can effectively filter and purify the sewage in the Yangtze River Delta polder area, and the twice filtration can mutually relieve each other, improve the service life of the device, and avoid the problem that the single filtration structure reaches the saturation cycle time short when working.

[0039] The twice filtration can mutually relieve each other, specifically: the sewage in the Yangtze River Delta polder area is pumped into the second processing box through the water inlet pipe, and the sewage in the Yangtze River Delta polder area is preliminarily filtered; the third processing box filters the sewage filtered by the second processing box again; wherein the large sundries are preliminarily filtered, and the small sundries are filtered again, compared with only one filtration, all sundries of different sizes can only be intercepted by a single filter screen, and the twice filtration for sundries of different sizes can effectively relieve the pressure of the single filter screen.

[0040] Example 2

[0041] Based on the above embodiment 1, the filter structure of the second treatment box 4 and the third treatment box 5 is that the filter plate 6 is arranged on the communication side wall of the second treatment box 4 and the third treatment box 5, and the filter plate 6 is arranged on the communication side wall of the first treatment box 2 and the third treatment box 5; therefore, three filter plates 6 are arranged, and the filter plates 6 are in U-shaped structure;

[0042] The impurity removal mechanism is arranged at the filter plate 6, and the impurity removal mechanism comprises a motor 11, a lead screw 12, a slag scraping block 13, a waste slag groove 14, a movable rod 15, and a second slag discharge pipe 16; the slag scraping block 13 is located in the waste slag groove 14 and moves along the waste slag groove 14, the top of the slag scraping block 13 is movably connected with one end of the movable rod 15, and the other end of the movable rod 15 is movably connected with the scraper 9; the scraper 9 is in contact with the filter plate 6 and moves up and down along the filter plate 6;

[0043] The slag scraping block 13 is connected with the output end of the driving assembly, and the driving assembly comprises a double-shaft air cylinder, the double-shaft air cylinder is located in the waste slag groove 14, and the output end of the double-shaft air cylinder is connected with the slag scraping block 13;

[0044] Or the driving assembly comprises the motor 11, the motor 11 is arranged on the second treatment box 4 and the third treatment box 5 respectively, the output end of the motor 11 is connected with the lead screw 12, two slag scraping blocks 13 are sleeved on the lead screw 12, the thread connection modes of the two slag scraping blocks 13 and the lead screw 12 are opposite, so that the slag scraping blocks 13 move towards each other during work; a telescopic protective sleeve is sleeved on the lead screw 12 and the slag scraping blocks 13, and the telescopic protective sleeve ensures that the deposited waste slag cannot block the lead screw transmission device, or cannot cause jamming due to impurities and thus cannot drive the impurity removal mechanism to work normally.

[0045] The waste slag groove 14 is arranged on the inner wall of the bottom surface of the corresponding second treatment box 4 and third treatment box 5; the waste slag groove 14 not only plays a limiting role in the movement of the slag scraping block 13 during work, but also scrapes down the impurities remaining on the surface of the scraper 9 when the scraper 9 falls and enters the waste slag groove 14 for collection; thus, the problem that the impurities are not completely scraped off in a single scraping operation and the residual impurities are pressed on the bottom of the scraper 9 when the scraper is reset, which causes a large amount of impurities to accumulate on the bottom surface of the treatment box and affects the normal work of the treatment box is avoided;

[0046] The scraper 9 is a rectangular plate body, the contact surface of the scraper 9 and the filter plate 6 can scrape off the impurities adsorbed on the filter plate 6 during work, and the top surface of the scraper 9 can receive the scraped impurities;

[0047] In work, by controlling the drive assembly work, drive the slag block 13 along the waste slag groove 14 moves, drives the waste slag groove 14 in the dirt to the two sides of waste slag groove 14, and enters into the slag pipe 16;At the same time, the slag block 13 is moved in the process, by the movable rod 15 will drive the scraper 9 to move up and down along the filter plate 6, remove the sundries on the filter plate 6, ensure the unobstructed of filter plate 6;Therefore, the impurity removal mechanism of the application can not only clean and remove the sundries on the surface of the filter plate 6, but also can scrape the sundries on the surface of the scraper 9 downward during cleaning, and discharge from the slag pipe 16, thereby greatly improving the sewage filtering efficiency of the Yangtze River Delta area;During the slag discharge process, only the slag discharge pipe needs to be opened, and the waste slag is discharged from the slag discharge pipe, and a small amount of sewage may be discharged with the waste slag during the slag discharge process, and the proportion of this part of sewage to the overall sewage treatment capacity is very small, and the loss is small, which can be ignored.

[0048] Example 3

[0049] Based on the above embodiment 2, the slag removal mechanism 10 is arranged at the top of the third treatment box 5, the slag removal mechanism 10 includes a slag removal plate 101, a cylinder 102, a moving plate 103, a slide rail 104, a first connecting rod 105, a second connecting rod 106;

[0050] The first connecting rod 105 is rotatably arranged at the center of the inner top surface of the third treatment box 5, the two ends of the first connecting rod 105 are respectively connected with the second connecting rod 106, and the end of the second connecting rod 106 away from the first connecting rod 105 is connected with the moving plate 103;The moving plate 103 is installed on the top surface of the third treatment box 5 through the slide rail 104, and the moving plate 103 is connected with the slag removal plate 101;

[0051] Among them, a group of moving plates 103 are connected with the cylinder 102, and the cylinder 102 is installed on the inner top surface of the third treatment box 5;

[0052] Matched with the slag removal mechanism 10;The object carrying plate 7 is arranged above the inner cavity of the second treatment box 4, the horizontal height of the object carrying plate 7 is equal to the horizontal height of the slag removal plate 101, and the slag discharge port 8 is formed in the side wall of the second treatment box 4, and the sealing door is arranged at the slag discharge port 8;

[0053] In work, the starting cylinder 102 works, drives a group of moving plates 103 to move, through the connecting structure of the first connecting rod 105 and the second connecting rod 106, drives another group of moving plates 103 to move, so that two slag removal plates 101 move to the direction of the carrier plate 7, push the sundries scraped off on the scraper 7 to the carrier plate 7, store the filtered sundries, meanwhile, utilize the cavity surrounded by the carrier plate 7 and the second treatment box 4, compress the sundries in the cavity through the scraper 7, then open the sealing door at the slag discharge port 8, so that it is convenient for subsequent collection of the sundries.

[0054] And for the impurity removal mechanism matched with the filter plate 6 at the third treatment box 5, since the filtered sundries are smaller, only the sundries on the scraper 9 need to be directly cleaned during work, without compression treatment.

[0055] Example 2

[0056] Based on the above example 1, the present application is a comprehensive filtration method sewage treatment process suitable for the Yangtze River Delta polder area, comprising the following steps:

[0057] Through the water inlet pipe 3, the sewage in the Yangtze River Delta polder area is pumped to the second treatment box 4 for preliminary filtration of the sewage in the Yangtze River Delta polder area; the third treatment box 5 filters the sewage filtered by the second treatment box 4 again; the first treatment box 2 is a flocculation tank, which further purifies the sewage in the Yangtze River Delta polder area;

[0058] Among them, by controlling the driving assembly to work, the scrap residue groove 14 is driven to move along the scrap residue groove 14, and the sundries in the scrap residue groove 14 are driven to the two sides of the scrap residue groove 14 and enter the residue discharge pipe 16; at the same time, the scraper 9 is driven to move up and down along the filter plate 6 by the movable rod 15 during the movement of the scraper 13, and the sundries on the filter plate 6 are removed;

[0059] When the scraper 7 moves to the carrier plate 7, it is ensured that the scraper 9 is consistent in height with the carrier plate 7 or the slag removal plate 101 when moving upward, the starting cylinder 102 works, drives a group of moving plates 103 to move, through the connecting structure of the first connecting rod 105 and the second connecting rod 106, drives another group of moving plates 103 to move, so that two slag removal plates 101 move to the direction of the carrier plate 7, push the sundries scraped off on the scraper 7 to the carrier plate 7, store the filtered sundries, meanwhile, utilize the cavity surrounded by the carrier plate 7 and the second treatment box 4, compress the sundries in the cavity through the scraper 7, then open the sealing door at the slag discharge port 8, so that it is convenient for subsequent collection of the sundries.

[0060] The working principle of the present application: the structure of the treatment box 1 is set, the two-time filtering mode of first diversion and then collection is realized, the sewage in the Yangtze River Delta polder area can be effectively filtered and purified, the two-time filtering can mutually alleviate the situation, the service life of the device is improved, and the problem that the saturation cycle time is short when a single filtering structure works is avoided;

[0061] The impurity removing mechanism can not only clean and remove the impurities on the surface of the filter plate 6, but also scrape the impurities remaining on the surface of the scraper 9 downward and discharge them from the slag discharge pipe 16, thereby greatly improving the sewage filtering efficiency in the Yangtze River Delta polder area.

[0062] The slag cleaning mechanism 10 can clean the larger impurities filtered by the second treatment box 4 in time and discharge them from the second treatment box 4, thereby solving the problem that the impurities clogging the surface of the filter screen are cleaned manually and a lot of manpower is needed in the prior art.

[0063] The above describes one embodiment of the present application in detail, but the content described is only a preferred embodiment of the present application and cannot be considered as limiting the implementation range of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A comprehensive filtration-based wastewater treatment process applicable to the Yangtze River Delta polder region, characterized in that: Includes the following steps: The sewage from the Yangtze River Delta polder area is pumped to the second treatment tank (4) through the inlet pipe (3) for preliminary filtration; the third treatment tank (5) filters the sewage filtered by the second treatment tank (4) again; the first treatment tank (2) is a flocculation tank for further purification of the sewage from the Yangtze River Delta polder area. In this process, by controlling the operation of the drive component, the scraper block (13) is moved along the waste slag trough (14), driving the dirt in the waste slag trough (14) to both sides of the waste slag trough (14) and into the slag discharge pipe (16); at the same time, during the movement of the scraper block (13), the scraper (9) is moved up and down along the filter plate (6) by the movable rod (15) to remove the debris on the filter plate (6).

2. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 1, characterized in that, When the scraper (9) moves to the carrier plate (7), the cylinder (102) is activated, which drives a set of moving plates (103) to move. Through the connection structure of the first connecting rod (105) and the second connecting rod (106), another set of moving plates (103) will be driven to move, so that the two cleaning plates (101) move towards the carrier plate (7) and push the debris scraped off the scraper (9) onto the carrier plate (7) to store the filtered debris.

3. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 2, characterized in that, A loading plate (7) is provided above the inner cavity of the second processing box (4), and the horizontal height of the loading plate (7) is equal to the horizontal height of the slag removal plate (101).

4. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 3, characterized in that, There is one first processing box (2) and one third processing box (5), and two second processing boxes (4).

5. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 4, characterized in that, A filter plate (6) is provided on the connecting side wall of the second processing box (4) and the third processing box (5). A filter plate (6) is provided on the connecting side wall of the first processing box (2) and the third processing box (5).

6. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 5, characterized in that, A cleaning mechanism is provided at the filter plate (6), which includes: The scraper block (13) is located in the waste residue trough (14) and moves along the waste residue trough (14). The top of the scraper block (13) is movably connected to one end of the movable rod (15), and the other end of the movable rod (15) is movably connected to the scraper (9). The scraper (9) contacts the filter plate (6) and moves up and down along the filter plate (6).

7. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 6, characterized in that, Waste residue tank (14) is located on the inner bottom wall of the corresponding second treatment tank (4) and third treatment tank (5).

8. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 7, characterized in that, The scraper (9) is a rectangular plate.

9. The integrated filtration wastewater treatment process applicable to the Yangtze River Delta polder area according to claim 8, characterized in that, A first connecting rod (105) is rotatably installed at the center of the inner top surface of the third processing box (5). The two ends of the first connecting rod (105) are movably connected to the second connecting rod (106). The end of the second connecting rod (106) away from the first connecting rod (105) is connected to the moving plate (103). The moving plate (103) is installed on the top surface of the third processing box (5) through the slide rail (104). The moving plate (103) is connected to the slag cleaning plate (101).

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