Solid-liquid separation device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a solid-liquid separation device for sewage treatment. Comprising a base, a sedimentation tank, a drain valve, sliding rods, a lifting frame, a filter screen, a scraper, a stop lever and the like, the sedimentation tank is connected to the top surface of the base, the drain valve is mounted on the side surface of the sedimentation tank, the sliding rods are symmetrically and slidably connected to the sedimentation tank, the lifting frame is connected to the upper ends of the sliding rods, the filter screen is connected to the lifting frame and located in the sedimentation tank, and the scraper is slidably connected to the lifting frame. A linear hole is formed in the scraper, and the stop levers are symmetrically connected to the side face of the scraper. According to the utility model, the lead screw motor I drives the filter screen to ascend, sediments in the sedimentation tank can be lifted upwards at one time, then the lead screw motor II drives the scraping plate to move forwards, the sediments on the filter screen can be scraped forwards to the filter frame for unified treatment, the sedimentation tank does not need to be cleaned manually, time and labor are saved, and the cleaning efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a solid-liquid separation device for sewage treatment. Background Art

[0002] Wastewater treatment refers to a series of processes used to remove solid waste and pollutants from sewage in order to achieve reuse purposes or acceptable discharge standards. Sedimentation tanks are a very critical link in the sewage treatment process, mainly used to separate and remove suspended solids and other settleable substances from sewage.

[0003] Small-scale sedimentation tanks are usually used as the first step of industrial wastewater pretreatment in existing small factories or workshops to remove solid particles and suspended solids generated during the production process. In rural or remote areas, where the houses are scattered and not suitable for the construction of large-scale centralized sewage treatment plants, small-scale sedimentation tanks are also used to treat sewage. For such small-scale sedimentation tanks, it is usually necessary to manually clean the sludge deposited at the bottom of the tank regularly, so as to prevent excessive sludge at the bottom of the sedimentation tank from occupying the effective volume of the sedimentation tank and prevent water quality from deteriorating. However, manual cleaning of the sludge at the bottom of the sedimentation tank is time-consuming and labor-intensive, and the cleaning efficiency is low. Utility Model Content

[0004] In view of this, the utility model provides a solid-liquid separation device for sewage treatment, which can overcome the shortcomings of existing small sedimentation tanks that require regular manual cleaning during use, which is time-consuming and labor-intensive and has low cleaning efficiency.

[0005] The technical implementation scheme of the utility model is: a solid-liquid separation device for sewage treatment, including a base, a sedimentation tank and a drain valve, the sedimentation tank is connected to the top surface of the base, the drain valve is installed on the side of the sedimentation tank, and also includes a slide bar, a lifting frame, a filter screen, a scraper, a baffle, a lifting assembly and a moving assembly, the slide bar is symmetrically slidably connected to the sedimentation tank, the lifting frame is connected to the upper end of the slide bar, the filter screen is connected to the lifting frame, and the filter screen is located in the sedimentation tank, the scraper is slidably connected to the lifting frame, a straight hole is opened on the scraper, the baffle is symmetrically connected to the side of the scraper, the lifting assembly is used to drive the lifting frame to lift, and the moving assembly is used to control the movement of the scraper.

[0006] More preferably, the lifting assembly includes a screw motor I and a threaded sleeve, the screw motor I is installed on the side of the sedimentation tank, the threaded sleeve is connected to the lifting frame, and the threaded sleeve is threadedly connected to the screw of the screw motor I.

[0007] More preferably, the moving assembly includes a guide rod, a slide plate and a screw motor II, the guide rod is connected to the top surface of the sedimentation tank, the slide plate is slidably connected to the guide rod, the screw motor II is connected to the sedimentation tank, and the slide plate is threadedly connected to the screw of the screw motor II.

[0008] More preferably, the moving assembly further comprises a hook rod, and the hook rod is connected to the side of the slide plate.

[0009] More preferably, it further comprises a mounting frame, which is connected to the side of the sedimentation tank.

[0010] More preferably, a filter frame is further included, a mounting frame is provided with a through hole, and the filter frame is slidably connected in the mounting frame.

[0011] Compared with the prior art, the utility model has the following advantages: the utility model drives the filter to rise through the screw motor I, so as to lift the sediment in the sedimentation tank up at one time, and then drives the scraper forward through the screw motor II to scrape the sediment on the filter forward to the filter frame for unified treatment, without the need for manual cleaning of the sedimentation tank, thus saving time and effort and improving cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 It is a specific structural schematic diagram of the lifting frame of the utility model.

[0014] Figure 3 It is a schematic diagram of the specific structure of the scraper of the utility model.

[0015] Figure 4 The utility model is a schematic diagram of the installation of the baffle rod.

[0016] Figure 5 It is a specific structural schematic diagram of the installation frame of the utility model.

[0017] The markings of the components in the accompanying drawings are as follows: 1-base, 2-sedimentation tank, 3-drain valve, 4-slide rod, 5-lifting frame, 51-filter screen, 52-scraper, 5201-slotted hole, 5202-stop rod, 6-screw motor I, 7-screw sleeve, 8-guide rod, 9-slide plate, 10-screw motor II, 11-hook rod, 12-installation frame, 1201-through hole, 13-filter frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment: A solid-liquid separation device for sewage treatment, such as Figure 1-Figure 5As shown in the figure, it includes a base 1, a sedimentation tank 2 and a drain valve 3. The sedimentation tank 2 is connected to the top surface of the base 1, and the drain valve 3 is installed at the lower part of the front side of the sedimentation tank 2. It also includes a sliding rod 4, a lifting frame 5, a filter screen 51, a scraping plate 52, a stop bar 5202, a lifting component and a moving component. The left and right sides of the sedimentation tank 2 are symmetrically slidably connected to the sliding rod 4 in the front and rear directions. The number of sliding rods 4 is four. A lifting frame 5 is connected between the upper ends of the four sliding rods 4. The lower front side of the lifting frame 5 is inclined. The filter screen 51 is connected to the lower part of the lifting frame 5 and is located inside the sedimentation tank 2. The left and right sides of the lower part of the lifting frame 5 are symmetrically provided with sliding grooves, and the two sliding grooves are respectively located on the left and right sides of the scraping plate 52. The scraping plate 52 is slidably connected in the sliding grooves. A slotted hole 5201 is opened on the scraping plate 52. The scraping plate 52 is integrally in a "return" shape. The inner top surface and the inner bottom surface of the scraping plate 52 are respectively at the same height as the top surface and the bottom surface of the filter screen 51. When the scraping plate 52 moves forward, the filter screen 51 can pass through the slotted hole 5201 on the scraping plate 52, and the scraping plate 52 can simultaneously scrape the silt adhering to the top surface and the bottom surface of the filter screen 51. The left and right sides of the front side of the scraping plate 52 are symmetrically connected with stop bars 5202. The bottom surfaces of the stop bars 5202 are in contact with the inner bottom surface of the lifting frame 5, and the two stop bars 5202 respectively block the upper parts of the two sliding grooves to prevent the solid substances in the sewage from settling down through the sliding grooves. The lifting component is used to drive the lifting frame 5 to lift, and the moving component is used to control the movement of the scraping plate 52.

[0020] The lifting component includes a screw rod motor I 6 and a nut sleeve 7. The screw rod motor I 6 is installed on the left side of the sedimentation tank 2, and the nut sleeve 7 is connected to the upper left middle side of the lifting frame 5, and the nut sleeve 7 is threadedly connected to the screw rod of the screw rod motor I 6.

[0021] The moving component includes a guide rod 8, a sliding plate 9, a screw rod motor II 10 and a hook rod 11. The guide rod 8 is connected to the right side of the top surface of the sedimentation tank 2. The sliding plate 9 is slidably connected to the guide rod 8. The screw rod motor II 10 is connected to the upper left part of the rear side of the sedimentation tank 2, and the sliding plate 9 is threadedly connected to the screw rod of the screw rod motor II 10. The hook rod 11 is connected to the middle of the front side of the sliding plate 9.

[0022] It also includes a mounting frame 12 and a filter frame 13. The mounting frame 12 is connected to the side surface of the sedimentation tank 2. The inner bottom surface of the mounting frame 12 is inclined, and a through hole 1201 is opened at the lower part of the rear side of the mounting frame 12. The filter frame 13 is slidably connected in the mounting frame 12, and a handle is also connected to the front side of the filter frame 13, which is convenient for manually pulling the filter frame 13 forward to take it out.

[0023] First, put an appropriate amount of sewage into the sedimentation tank 2, and then add an appropriate amount of flocculant into the sedimentation tank 2, so that the solids in the sewage can precipitate in the sedimentation tank 2. At this time, the filter screen 51 can filter the precipitates in the sedimentation tank 2, and the blocking rod 5202 can block the upper part of the chute at the lower part of the lifting frame 5, so as to prevent the precipitates from depositing downward through the chute to the lower part of the filter screen 51; when the solids in the sewage are completely precipitated, the screw motor I 6 can be used to drive the nut sleeve 7 to rise, driving the lifting frame 5 and the sliding rod 4 to rise. The lifting frame 5 can drive the filter screen 51, the scraping plate 52 and the blocking rod 5202 to move upward. The filter screen 51 can drive the precipitates in the sedimentation tank 2 to rise as a whole until the scraping plate 52 contacts the hook rod 11. Then, the screw motor II 10 is used to drive the sliding plate 9 and the hook rod 11 to move forward. When the front side of the sliding plate 9 contacts the rear side of the scraping plate 52, it can push the scraping plate 52 to move forward. The scraping plate 52 can scrape the precipitates on the filter screen 51 forward. At the same time, since the scraping plate 52 is in a zigzag shape, the scraping plate 52 can also scrape the bottom surface of the filter screen 51. Therefore, it can not only support the bottom surface of the filter screen 51, but also resist the lower part of the precipitates on the filter screen 51 to prevent the precipitates from being pressed through the filter screen 51. Since the front side of the lower end of the lifting frame 5 is an inclined surface, the scraping plate 52 can finally scrape the precipitates on the filter screen 51 forward and fall into the filter frame 13. The filter frame 13 can perform secondary filtration on the precipitates, so that the water adhering to the surface of the precipitates can flow downward through the filter frame 13 into the installation frame 12 and finally flow back into the sedimentation tank 2 through the through hole 1201 to avoid waste of water resources. Then, the treated water in the sedimentation tank 2 can be discharged and collected through the drain valve 3. At the same time, the screw motor II 10 can be used to drive the sliding plate 9 and the hook rod 11 to move backward to reset. The front side of the sliding plate 9 will be separated from the rear side of the scraping plate 52. Subsequently, the front end of the hook rod 11 will contact the front side of the scraping plate 52, so as to drive the scraping plate 52 to move backward to reset. Then, the screw motor I 6 is used to drive the nut sleeve 7 to descend, driving the lifting frame 5 and the sliding rod 4 to descend. The lifting frame 5 can drive the filter screen 51, the scraping plate 52 and the blocking rod 5202 to move downward to reset, so that the scraping plate 52 is separated from the hook rod 11. Finally, the filter frame 13 is pulled forward and taken out manually, and the precipitates in the filter frame 13 can be uniformly treated.

[0024] Although the present disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art should understand that various changes in form and detail may be made therein without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation device for sewage treatment, comprising a base (1), a sedimentation tank (2) and a drain valve (3), The sedimentation tank (2) is connected to the top surface of the base (1), and the drain valve (3) is installed on the side of the sedimentation tank (2), wherein: The invention also comprises a slide bar (4), a lifting frame (5), a filter screen (51), a scraper (52), a stopper (5202), a lifting assembly and a moving assembly. The slide bar (4) is symmetrically slidably connected to the sedimentation tank (2). The lifting frame (5) is connected to the upper end of the slide bar (4). The filter screen (51) is connected to the lifting frame (5), and the filter screen (51) is located in the sedimentation tank (2). The scraper (52) is slidably connected to the lifting frame (5). A straight hole (5201) is formed on the scraper (52). The stopper (5202) is symmetrically connected to the side of the scraper (52). The lifting assembly is used to drive the lifting frame (5) to lift and lower. The moving assembly is used to control the movement of the scraper (52).

2. A solid-liquid separation device for sewage treatment according to claim 1, characterized in that: The lifting assembly comprises a screw motor I (6) and a screw sleeve (7). The screw motor I (6) is installed on the side of the sedimentation tank (2), the screw sleeve (7) is connected to the lifting frame (5), and the screw sleeve (7) is threadedly connected to the screw of the screw motor I (6).

3. A solid-liquid separation device for sewage treatment according to claim 2, characterized in that: The moving assembly comprises a guide rod (8), a slide plate (9) and a screw motor II (10), wherein the guide rod (8) is connected to the top surface of a sedimentation tank (2), the slide plate (9) is slidably connected to the guide rod (8), the screw motor II (10) is connected to the sedimentation tank (2), and the slide plate (9) is threadedly connected to the screw of the screw motor II (10).

4. A solid-liquid separation device for sewage treatment according to claim 3, characterized in that: The moving assembly also includes a hook rod (11), which is connected to the side of the slide plate (9).

5. A solid-liquid separation device for sewage treatment according to claim 4, characterized in that: It also includes a mounting frame (12), which is connected to the side of the sedimentation tank (2).

6. A solid-liquid separation device for sewage treatment according to claim 5, characterized in that: It also includes a filter frame (13), a through hole (1201) is opened on the installation frame (12), and the filter frame (13) is slidably connected in the installation frame (12).

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