Wastewater treatment device

Abstract

The utility model provides a wastewater treatment device, which relates to the wastewater treatment field and comprises a wastewater treatment machine body and a filter screen cylinder, the filter screen cylinder is supported on the inner side of the wastewater treatment machine body, a back flushing plate is attached to the outer side screen surface of the filter screen cylinder, a spray head is embedded in the side concave surface of the back flushing plate, and the spray head is connected with the filter screen cylinder. A rotating column is connected to the inner side face of the upper end of the reverse flushing plate through a fixing piece, an inner cavity of the rotating column is connected with the reverse flushing plate through a liquid conveying pipe, the cylindrical face of the upper end of the rotating column is connected with a motor transmission mechanism, and an impurity collecting net frame is inserted into the inner side end of the fixing piece; and the outer side end of the impurity collecting screen frame is in contact with the inner cylinder surface of the filter screen cylinder through a strip-shaped scraping plate. The utility model solves the problem that in the prior art, flocculent impurities blocked in cylinder holes are difficult to remove by a scraper blade in the wall of the filter cylinder, so that the wastewater separation treatment efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, and particularly relates to a wastewater treatment device. Background Art

[0002] With the rapid development of industry, the types and quantities of wastewater have increased rapidly, and the pollution of water bodies has become increasingly extensive and serious, threatening the health and safety of humans. Therefore, for environmental protection, the treatment of industrial wastewater is more important than the treatment of urban sewage. Wastewater treatment first separates impurities and sediments in the wastewater, and then conducts chemical reagent reactions and purification. After retrieval, in the prior art (application number: 202321179315.8), a wastewater treatment device with a stirring structure is disclosed. It is recorded in the text that "through the structural design of the filtering component, the utility model realizes the function of filtering wastewater after mixing with chemical reagents, solves the problem that the filtering barrel is easy to be blocked during the filtering process, and improves the filtering efficiency". However, in the prior art, the scraper inside the filtering barrel wall is difficult to remove the blocked flocculent impurities in the barrel holes, which affects the efficiency of wastewater separation and treatment. Content of the Utility Model

[0003] In order to overcome the defects existing in the prior art, the present utility model provides a wastewater treatment device to solve the problem that the scraper inside the filtering barrel wall in the prior art is difficult to remove the blocked flocculent impurities in the barrel holes, which affects the efficiency of wastewater separation and treatment.

[0004] To achieve the above object, a wastewater treatment device is provided, including: a wastewater treatment body and a filtering net barrel. The filtering net barrel is supported inside the wastewater treatment body.

[0005] A reverse flushing plate is attached to the outer net surface of the filtering net barrel. A nozzle is embedded in the concave surface of the reverse flushing plate. The inner side surface of the upper end of the reverse flushing plate is connected to a rotating column through a fixing member. The inner cavity of the rotating column is connected to the reverse flushing plate through an infusion pipe. The upper end cylindrical surface of the rotating column is connected to a motor transmission mechanism. The inner end of the fixing member is inserted with a impurity collection net frame. The outer end of the impurity collection net frame is in contact with the inner cylindrical surface of the filtering net barrel through a strip-shaped scraper.

[0006] Further, a sealing cover plate is buckled on the upper end surface of the wastewater treatment body. The middle part of the sealing cover plate is connected through a bearing to the rotating column. The motor transmission mechanism is installed on the upper surface of the sealing cover plate.

[0007] Further, a water inlet is opened on the surface of the sealing cover plate; and the water inlet is located on the right side of the rotating column. The lower end of the rotating column is connected to a stirring paddle through a stirring shaft.

[0008] Further, a drain pipe is arranged on the right end surface of the wastewater treatment body. A control valve is installed on the surface of the drain pipe. The inner side of the wastewater treatment body is inserted with the lower end of the filtering net barrel through a base.

[0009] Further, a liquid guide cavity is arranged inside the reverse flushing plate. The infusion tube is communicated with the nozzle through the liquid guide cavity, and three rows of nozzles are arranged in a staggered manner on the concave side of the reverse flushing plate.

[0010] Further, connecting blocks are welded to the front and rear side surfaces at the upper end of the impurity collection mesh frame; and the connecting blocks are inserted into the inner groove surface of the fixing piece, and strip-shaped scraping plates are symmetrically fixed at the front and rear side openings of the impurity collection mesh frame.

[0011] Further, the reverse flushing plate, the nozzle, the infusion tube, the fixing piece, the rotating column, the motor transmission mechanism, the impurity collection mesh frame and the strip-shaped scraping plate constitute an anti-blocking mechanism of the filter mesh cylinder.

[0012] The beneficial effect of the present utility model is that the wastewater treatment device of the present utility model utilizes the reverse flushing plate and the impurity collection mesh frame to be arranged on the inner and outer cylinder walls of the filter mesh cylinder. The reverse flushing plate and the impurity collection mesh frame are driven by the rotating column to rotate inside and outside the filter mesh cylinder, so that the impurities in the cylinder mesh holes ejected inward by the nozzles of the reverse flushing plate are collected in the impurity collection mesh frame. At the same time, the strip-shaped scraping plates fixed in the impurity collection mesh frame scrape the impurities on the inner cylinder surface, which is convenient for efficiently cleaning the impurities on the cylinder surface and in the mesh holes of the filter mesh cylinder, ensuring the wastewater filtration and circulation speed of the wastewater treatment device, saving the downtime cleaning duration, and facilitating the continuous filtration and separation of solid impurities in the wastewater by the wastewater treatment device. Description of the Drawings

[0013] Figure 1 It is a front view sectional structure schematic diagram of the wastewater treatment device according to the embodiment of the present utility model.

[0014] Figure 2 It is a top view partial sectional structure schematic diagram of the filter mesh cylinder and the reverse flushing plate according to the embodiment of the present utility model.

[0015] Figure 3 It is a top view connection structure schematic diagram of the filter mesh cylinder and the reverse flushing plate according to the embodiment of the present utility model.

[0016] Figure 4 It is a three-dimensional structure schematic diagram of the impurity collection mesh frame according to the embodiment of the present utility model.

[0017] In the figure: 1. Wastewater treatment machine body; 11. Drain pipe; 12. Control valve; 13. Base; 2. Sealing cover plate; 21. Water inlet; 3. Reverse flushing plate; 31. Liquid guide cavity; 32. Nozzle; 33. Infusion tube; 34. Fixing piece; 4. Rotating column; 41. Motor transmission mechanism; 42. Stirring shaft; 43. Stirring paddle; 5. Filter mesh cylinder; 6. Impurity collection mesh frame; 61. Strip-shaped scraping plate; 62. Connecting block. Detailed Embodiment

[0018] Refer to Figures 1 to 4As shown in the figure, the utility model provides a wastewater treatment device, including: a wastewater treatment body 1 and a filter screen cylinder 5. The filter screen cylinder 5 is supported inside the wastewater treatment body 1.

[0019] A reverse flushing plate 3 is attached to the outer mesh surface of the filter screen cylinder 5. A spray head 32 is embedded and installed in the concave surface of the reverse flushing plate 3. The inner side surface of the upper end of the reverse flushing plate 3 is connected to a rotating column 4 through a fixing member 34. The inner cavity of the rotating column 4 is connected to the reverse flushing plate 3 through a liquid delivery pipe 33. The upper end column surface of the rotating column 4 is connected to a motor transmission mechanism 41. The inner side end of the fixing member 34 is inserted with a impurity collection net frame 6. The outer side end of the impurity collection net frame 6 is in contact with the inner cylinder surface of the filter screen cylinder 5 through a strip-shaped scraper 61.

[0020] When separating solid impurities in the wastewater, first start the motor transmission mechanism 41 to make the reverse flushing plate 3, the impurity collection net frame 6 and the stirring paddle 43 rotate synchronously. Then pour the wastewater into the filter screen cylinder 5 inside the wastewater treatment body 1, so that the wastewater flows outwards after being stirred by the stirring paddle 43. At the same time, the strip-shaped scraper 61 at the side of the moving impurity collection net frame 6 scrapes off the impurities left on the inner cylinder surface after filtration. When the drainage speed of the wastewater treatment body 1 slows down, connect the upper end of the rotating column 4 to a high-pressure water pipe, so that high-pressure water is sprayed out from the spray head 32 of the reverse flushing plate 3 to wash the mesh holes of the filter screen cylinder 5, and the impurities blocking the mesh holes are washed out and flushed onto the mesh surface of the impurity collection net frame 6, which is convenient for efficiently cleaning the impurities on the cylinder surface and in the mesh holes of the filter screen cylinder 5, ensuring the wastewater filtration and circulation speed of the wastewater treatment device, saving the shutdown cleaning time, and facilitating the continuous filtration and separation of solid impurities in the wastewater by the wastewater treatment device.

[0021] In this embodiment, a sealing cover plate 2 is buckled on the upper end surface of the wastewater treatment body 1. The rotating column 4 is connected through a bearing in the middle of the sealing cover plate 2. The motor transmission mechanism 41 is installed on the upper surface of the sealing cover plate 2. An inlet 21 is opened on the surface of the sealing cover plate 2; and the inlet 21 is located on the right side of the rotating column 4. The lower end of the rotating column 4 is connected to a stirring paddle 43 through a stirring shaft 42.

[0022] As a preferred embodiment, the motor transmission mechanism 41 drives the rotating column 4 to rotate through gear meshing transmission, so that the reverse flushing plate 3, the impurity collection net frame 6 and the stirring paddle 43 rotate synchronously, stir the wastewater entering the filter screen cylinder 5, and scrape off the impurities attached to the inner cylinder surface at the same time.

[0023] In this embodiment, a drain pipe 11 is arranged on the right end surface of the wastewater treatment body 1. A control valve 12 is installed on the surface of the drain pipe 11. The inner side of the wastewater treatment body 1 is inserted into the lower end of the filter screen cylinder 5 through a base 13.

[0024] As a preferred embodiment, the drain pipe 11 facilitates the discharge of the filtered and separated wastewater, enabling the wastewater to undergo the next treatment and purification process. The filter mesh cylinder 5 inserted on the base 13 is convenient for daily removal and cleaning.

[0025] In this embodiment, a liquid guide cavity 31 is provided inside the reverse flushing plate 3. The infusion pipe 33 is connected to the nozzle 32 through the liquid guide cavity 31, and three rows of nozzles 32 are arranged in a staggered manner on the concave side of the reverse flushing plate 3.

[0026] As a preferred embodiment, the reverse flushing plate 3 uses the high-pressure water conveyed by the infusion pipe 33 through the nozzles 32 to flush the mesh holes of the filter mesh cylinder 5, thereby flushing out the impurities blocked in the mesh holes and attaching them to the arc-shaped mesh surface of the impurity collection mesh frame 6.

[0027] In this embodiment, connecting blocks 62 are welded to the front and rear side surfaces of the upper end of the impurity collection mesh frame 6; and the connecting blocks 62 are inserted into the inner groove surface of the fixing member 34, and strip-shaped scraping plates 61 are symmetrically fixed at the front and rear side openings of the impurity collection mesh frame 6.

[0028] As a preferred embodiment, the impurity collection mesh frame 6 uses the strip-shaped scraping plates 61 to scrape off the impurities attached to the inner cylindrical surface of the filter mesh cylinder 5, preventing excessive accumulation of impurities from affecting the filtration and flow of wastewater. The cleaning impurity collection mesh frame 6 and the fixing member 34 are in an inserted state, facilitating the removal of the impurity collection mesh frame 6 for cleaning.

[0029] In this embodiment, the reverse flushing plate 3, the nozzles 32, the infusion pipe 33, the fixing member 34, the rotating column 4, the motor drive mechanism 41, the impurity collection mesh frame 6, and the strip-shaped scraping plates 61 constitute an anti-blocking mechanism for the filter mesh cylinder 5.

[0030] As a preferred embodiment, the anti-blocking mechanism of the filter mesh cylinder 5 facilitates the efficient cleaning of the impurities on the cylindrical surface and in the mesh holes of the filter mesh cylinder 5, ensures the wastewater filtration and flow rate of the wastewater treatment device, saves the downtime for cleaning, and facilitates the continuous filtration and separation of solid impurities in the wastewater by the wastewater treatment device.

[0031] The wastewater treatment device of the present utility model can effectively solve the problem in the prior art that the scraping plate inside the filter cylinder wall is difficult to remove the blocked flocculent impurities in the cylinder holes, affecting the efficiency of wastewater separation treatment. It is convenient for efficiently cleaning the impurities on the cylindrical surface and in the mesh holes of the filter mesh cylinder, ensures the wastewater filtration and flow rate of the wastewater treatment device, saves the downtime for cleaning, and facilitates the continuous filtration and separation of solid impurities in the wastewater by the wastewater treatment device, and is applicable to wastewater treatment devices.

Claims

1. A wastewater treatment device, comprising: A wastewater treatment body (1) and a filter screen cartridge (5), wherein the filter screen cartridge (5) is supported on the inner side of the wastewater treatment body (1), and is characterized in that: The outer mesh surface of the filter screen cylinder (5) is fitted with a backwash plate (3), and a nozzle (32) is embedded in the concave side surface of the backwash plate (3). The inner side surface of the upper end of the backwash plate (3) is connected to a rotating column (4) via a fixing member (34). The inner cavity of the rotating column (4) is connected to the backwash plate (3) via an infusion tube (33). The upper cylindrical surface of the rotating column (4) is connected to a motor transmission mechanism (41). The inner end of the fixing member (34) is plugged with a collection screen frame (6), and the outer end of the collection screen frame (6) contacts the inner cylinder surface of the filter screen cylinder (5) via a strip scraper (61).

2. A wastewater treatment device according to claim 1, characterized in that: The upper end surface of the wastewater treatment body (1) is buckled with a sealing cover plate (2), the middle part of the sealing cover plate (2) is connected with a rotating column (4) through a bearing, and the motor transmission mechanism (41) is installed on the upper surface of the sealing cover plate (2).

3. A wastewater treatment device according to claim 2, characterized in that: A water inlet (21) is provided on the surface of the sealing cover plate (2); the water inlet (21) is located on the right side of the rotating column (4); and a stirring blade (43) is connected to the lower end of the rotating column (4) via a stirring shaft (42).

4. A wastewater treatment device according to claim 1, characterized in that: The right end face of the wastewater treatment body (1) is provided with a drainage pipe (11), the surface of which is mounted with a control valve (12), and the inside of the wastewater treatment body (1) is plugged into the lower end of the filter screen cylinder (5) via a base (13).

5. A wastewater treatment device according to claim 1, characterized in that: A liquid guide cavity (31) is provided inside the reverse flushing plate (3), the liquid infusion tube (33) is connected to the nozzle (32) through the liquid guide cavity (31), and three rows of nozzles (32) are arranged alternately on the concave side of the reverse flushing plate (3).

6. A wastewater treatment device according to claim 1, characterized in that: The front and rear side surfaces of the upper end of the impurity collecting net frame (6) are welded with connecting blocks (62); the connecting blocks (62) are plugged into the inner groove surface of the fixing member (34), and the strip scraper (61) is symmetrically fixed at the front and rear side frame openings of the impurity collecting net frame (6).

7. A wastewater treatment device according to claim 1, characterized in that: The reverse flushing plate (3), the nozzle (32), the liquid infusion tube (33), the fixing member (34), the rotating column (4), the motor transmission mechanism (41), the debris collection frame (6) and the strip scraper (61) constitute an anti-blocking mechanism of the filter screen cylinder (5).

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