High-concentration industrial wastewater pretreatment device

Abstract

The utility model discloses a high-concentration industrial wastewater pretreatment device which comprises a treatment tank, a fixed frame is fixedly mounted in the treatment tank, a filter screen is fixedly mounted in the fixed frame, the treatment tank is divided into a precipitation tank and a blanking tank by the fixed frame, a water baffle is mounted in the blanking tank in a sliding manner, and a water outlet is formed in the lower end of the precipitation tank. A lifting mechanism for driving the water baffle to ascend is arranged at the top end of the treatment tank. In the rising process of the water baffle, the two first racks on the side wall of the water baffle drive the gear to rotate, the gear rotates to drive the second racks to move downwards, the two second racks drive the scraper to move downwards, and the scraper can scrape off impurities on the filter screen and scrape the impurities on the filter screen to the position above the collecting plate. The filter screen cleaning device is simple in structure and convenient to operate, no impurity remains on the filter screen, normal proceeding of subsequent filtering and pretreatment work is guaranteed, the filter screen can be cleaned once every time a filtering procedure is executed, and no impurity exists on the filter screen for filtering every time.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial wastewater pretreatment, in particular to a high-concentration industrial wastewater pretreatment device. Background Art

[0002] Industrial wastewater refers to wastewater, sewage and waste liquid generated in the industrial production process, which contains industrial production materials, intermediates and products lost with the water, as well as pollutants generated in the production process. It has the characteristics of many types, complex components, high toxicity and high concentration, posing a serious threat to the environment and human health. It must be properly treated before it can be discharged or reused.

[0003] Industrial wastewater needs to be pretreated, which is a key step to ensure that the wastewater can be treated efficiently. Pretreatment mainly removes large solid particles, grease and other easily separated pollutants in the wastewater, laying a good foundation for the subsequent treatment process. In this process, filtration is a very important step. Filtration can further remove suspended matter, impurities and small particles in the wastewater, making the water clearer. By using filter screens or filter materials with different pore sizes, filtration can effectively intercept solid particles in the wastewater and achieve effective separation of solids and liquids. This not only reduces the difficulty of subsequent treatment, but also improves the efficiency and effluent quality of the entire wastewater treatment system. Therefore, filtration is an indispensable link in the pretreatment process of industrial wastewater.

[0004] Patent document CN218451899U discloses a wastewater pre-treatment filtering device, comprising a filtering pool (1), a water inlet arranged at the top of the filtering pool (1) and a water outlet arranged at the bottom of the filtering pool (1), the device also comprising baffles (4), a plurality of baffles (4) are arranged in a staggered manner along the height direction inside the filtering pool (1) to form an arched channel; the arched channel is densely filled with filtering sawdust, and a filling port (3) is provided on the side wall of the filtering pool (1). The present application utilizes the adsorption capacity of sawdust for dyes, oils and metal ions to remove high-concentration organic pollutants in wastewater, thereby providing support for wastewater post-treatment. At the same time, the arched channel can allow the wastewater to fully contact the sawdust, thereby extending the filtering time and improving the filtering effect.

[0005] As in the prior art of the above-mentioned patent, the above-mentioned filtering device only filters the wastewater by setting filter screens at both ends of the bow-shaped loop to extend the filtering time and improve the filtering effect. However, this method cannot clean the impurities on the filter screen inside the device on time. The filter screen inside the device needs to be disassembled, cleaned, and then installed before the device can continue to be used. If the impurities on the filter screen are not cleaned in time, the pretreatment filtering process will be affected. Utility Model Content

[0006] The purpose of the utility model is to provide a high-concentration industrial wastewater pretreatment device to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-concentration industrial wastewater pretreatment device comprises a treatment tank, a fixed frame is fixedly installed inside the treatment tank, a filter screen is fixedly installed inside the fixed frame, the fixed frame divides the treatment tank into a sedimentation tank and a discharge trough, a water baffle is slidably installed inside the discharge trough, a lifting mechanism for driving the water baffle to rise is arranged at the top of the treatment tank, gears are rotatably installed at the tops of both side walls of the treatment tank, two first racks are fixedly installed on the side walls of the water baffle, the two first racks are meshed with the gears, a scraper is arranged on one side of the filter screen, two second racks are fixedly installed on the top of the scraper, two limit plates are fixedly installed on the side walls of the treatment tank, the two second racks penetrate the two limit plates and are slidably connected with the two limit plates, the two second racks are meshed with the gears, and the bottom end of the discharge trough is connected and a discharge hopper is installed.

[0008] As a further description of the above technical solution: the lifting mechanism includes two support frames, the two support frames are fixedly installed on the top of the processing tank, a motor is fixedly installed on the top of one of the support frames, and the output end of the motor is transmission-connected with a screw, a sliding rod is fixedly installed between the other support frame and the processing tank, a lifting plate is arranged between the sliding rod and the screw, the lifting plate is slidably connected to the sliding rod, the lifting plate is threadedly connected to the screw, and a connecting rod is fixedly connected between the lifting plate and the water retaining plate.

[0009] As a further description of the above technical solution: a slope is arranged inside the sedimentation tank.

[0010] As a further description of the above technical solution: a collecting plate is detachably installed at the bottom end of the sedimentation tank.

[0011] As a further description of the above technical solution: the collecting plate is arranged directly below the scraper, and connecting plates are fixedly installed at both ends of the collecting plate. Bolts are threadedly installed on the two connecting plates, and the bolts are threadedly connected to the bottom end of the collecting trough.

[0012] As a further description of the above technical solution: a plurality of support columns are fixedly installed on the side wall of the processing tank.

[0013] The utility model provides a high-concentration industrial wastewater pretreatment device. It has the following beneficial effects: the utility model pours the industrial wastewater to be filtered into the interior of the sedimentation tank, and the water baffle can block the wastewater in the sedimentation tank. After standing for a period of time, impurities are precipitated below the wastewater. At this time, the water baffle is raised by the lifting mechanism, and the industrial wastewater flows into the interior of the feed tank through the filter screen, and the impurities are filtered out by the filter screen. During the rising process of the water baffle, the two first racks on the side wall of the water baffle drive the gear to rotate, and the gear rotation drives the second rack to move downward, and the two second racks drive the scraper to move downward, and the scraper can scrape the impurities on the filter screen, and scrape the impurities on the filter screen to the top of the collection plate, so that no impurities will remain on the filter screen, ensuring the normal progress of subsequent filtration and pretreatment work, and ensuring that the filter screen can be cleaned once each time the filtration process is performed, so that there are no impurities on the filter screen for each filtration.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a high-concentration industrial wastewater pretreatment device proposed by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the utility model in which the water retaining plate is raised and the scraper is scraping downward;

[0019] Figure 4 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0020] Figure 5 It is a schematic diagram of the three-dimensional exploded structure of the scraper, filter screen and water retaining plate of the utility model;

[0021] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the utility model.

[0022] Legend:

[0023] 1. Processing trough; 2. Slope; 3. Filter; 4. Fixed frame; 5. Water retaining plate; 6. Support frame; 7. Slide rod; 9. Motor; 10. Screw; 12. Lifting plate; 13. Connecting rod; 14. First rack; 15. Gear; 16. Second rack; 17. Scraper; 18. Limiting plate; 19. Discharge hopper; 20. Support column; 21. Collecting plate; 22. Connecting plate; 23. Bolt; 24. Discharge trough; 25. Sedimentation trough. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-6 , a high-concentration industrial wastewater pretreatment device comprises a treatment tank 1, a fixed frame 4 is fixedly installed inside the treatment tank 1, a filter screen 3 is fixedly installed inside the fixed frame 4, the fixed frame 4 divides the treatment tank 1 into two parts: a sedimentation tank 25 and a feed trough 24, a water baffle 5 is slidably installed inside the feed trough 24, a lifting mechanism for driving the water baffle 5 to rise is arranged at the top of the treatment tank 1, gears 15 are rotatably installed at the tops of both side walls of the treatment tank 1, two first racks 14 are fixedly installed on the side walls of the water baffle 5, and the two first racks 14 are meshed with the gear 15, a scraper 17 is arranged on one side of the filter screen 3, two second racks 16 are fixedly installed on the top of the scraper 17, two limit plates 18 are fixedly installed on the side walls of the treatment tank 1, two second racks 16 penetrate the two limit plates 18 and are slidably connected to the two limit plates 18, two second racks 16 are meshed with the gear 15, the feed trough 24 is slidably connected to the two limit plates 18, The bottom end of the trough 24 is connected to a lower hopper 19; the industrial wastewater to be filtered is poured into the sedimentation tank 25, and the water baffle 5 can block the wastewater inside the sedimentation tank 25. After standing for a period of time, impurities are precipitated below the wastewater. At this time, the water baffle 5 is raised by the lifting mechanism, and the industrial wastewater flows into the lower trough 24 through the filter screen 3, and the impurities are filtered by the filter screen 3. During the rising process of the water baffle 5, the two first racks 14 on the side wall of the water baffle 5 drive the gear 15 to rotate, and the rotation of the gear 15 drives the second rack 16 to move downward, and the two second racks 16 drive the scraper 17 to move downward, and the scraper 17 can scrape the impurities on the filter screen 3 and scrape the impurities on the filter screen 3 to the top of the collecting plate 21, so that no impurities will remain on the filter screen 3, ensuring the normal progress of subsequent filtration and pretreatment work, and ensuring that the filter screen 3 can be cleaned once each time the filtration process is performed, so that there are no impurities on the filter screen 3 for each filtration.

[0026] As the preferred technical solution of this embodiment, the lifting mechanism includes two support frames 6, and the two support frames 6 are fixedly installed on the top of the processing tank 1, wherein a motor 9 is fixedly installed on the top of one of the support frames 6, and a screw 10 is transmission-connected to the output end of the motor 9, and a sliding rod 7 is fixedly installed between the other support frame 6 and the processing tank 1, and a lifting plate 12 is arranged between the sliding rod 7 and the screw 10, and the lifting plate 12 is slidingly connected to the sliding rod 7, and the lifting plate 12 is threadedly connected to the screw 10, and a connecting rod 13 is fixedly connected between the lifting plate 12 and the water baffle 5; the screw 10 is driven to rotate by the motor 9, and the screw 10 rotates, and under the limiting and guiding action of the sliding rod 7 and the lifting plate 12, the lifting plate 12 can move up and down, and the lifting plate 12 further drives the water baffle 5 to move up and down through the connecting rod 13.

[0027] As a preferred technical solution of this embodiment, a slope 2 is arranged inside the sedimentation tank 25; the slope 2 can make it easier for wastewater to settle inside the sedimentation tank 25, and facilitate the downward flow of wastewater after the water retaining plate 5 is removed, thereby increasing the efficiency of wastewater pretreatment.

[0028] As a preferred technical solution of this embodiment, a collecting plate 21 is detachably mounted on the bottom end of the sedimentation tank 25 .

[0029] As a preferred technical solution of this embodiment, the collecting plate 21 is arranged directly below the scraper 17, and connecting plates 22 are fixedly installed at both ends of the collecting plate 21. Bolts 23 are threadedly installed on the two connecting plates 22, and the bolts 23 are threadedly connected to the bottom end of the collecting trough; the collecting plate 21 can be disassembled by the bolts 23, and the impurities remaining on the collecting plate 21 can be removed by disassembling the collecting plate 21, thereby achieving a more convenient effect of cleaning the impurities.

[0030] As a preferred technical solution of this embodiment, a plurality of support columns 20 are fixedly installed on the side wall of the processing tank 1; the support columns 20 can achieve normal support for the processing tank 1 and increase the stability of the device.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-concentration industrial wastewater pretreatment device, comprising a treatment tank (1), a fixing frame (4) is fixedly installed inside the treatment tank (1), a filter screen (3) is fixedly installed inside the fixing frame (4), and the characteristics are: The fixed frame (4) divides the processing tank (1) into two parts: a sedimentation tank (25) and a feed tank (24). A water baffle (5) is slidably installed inside the feed tank (24). A lifting mechanism for driving the water baffle (5) to rise is provided at the top of the processing tank (1). Gears (15) are rotatably installed at the tops of both side walls of the processing tank (1). Two first racks (14) are fixedly installed on the side walls of the water baffle (5). The two first racks (14) and the gears (15) are mutually rotatable. The filter screen (3) is meshed with a scraper (17) on one side, and two second racks (16) are fixedly installed on the top of the scraper (17). Two limit plates (18) are fixedly installed on the side wall of the processing tank (1). The two second racks (16) penetrate the two limit plates (18) and are slidably connected to the two limit plates (18). The two second racks (16) are meshed with the gear (15). The bottom end of the lower chute (24) is connected and a lower hopper (19) is installed.

2. A high-concentration industrial wastewater pretreatment device according to claim 1, characterized in that: The lifting mechanism comprises two support frames (6), the two support frames (6) are fixedly mounted on the top of the processing tank (1), a motor (9) is fixedly mounted on the top of one of the support frames (6), the output end of the motor (9) is transmission-connected with a screw rod (10), a sliding rod (7) is fixedly mounted between the other support frame (6) and the processing tank (1), a lifting plate (12) is arranged between the sliding rod (7) and the screw rod (10), the lifting plate (12) is slidably connected to the sliding rod (7), the lifting plate (12) is threadedly connected to the screw rod (10), and a connecting rod (13) is fixedly connected between the lifting plate (12) and the water retaining plate (5).

3. A high-concentration industrial wastewater pretreatment device according to claim 1, characterized in that: The sedimentation tank (25) is provided with a slope (2) inside.

4. A high-concentration industrial wastewater pretreatment device according to claim 1, characterized in that: A collecting plate (21) is detachably mounted on the bottom end of the sedimentation tank (25).

5. A high-concentration industrial wastewater pretreatment device according to claim 4, characterized in that: The collecting plate (21) is arranged directly below the scraper (17), and connecting plates (22) are fixedly mounted at both ends of the collecting plate (21). Bolts (23) are threadedly mounted on the two connecting plates (22), and the bolts (23) are threadedly connected to the bottom end of the collecting trough.

6. A high-concentration industrial wastewater pretreatment device according to claim 1, characterized in that: A plurality of support columns (20) are fixedly mounted on the side wall of the processing tank (1).

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