Scraping device

Abstract

The scraping device comprises a pressure filter, a supporting frame, a push plate and a movable plate, side openings are formed in the left end and the right end of the pressure filter, moving grooves are fixedly connected to the bottoms of the surfaces of the front side and the rear side of the pressure filter, and the inner sides of the moving grooves are rotationally connected with threaded rods and fixedly connected with sliding rods correspondingly; the surfaces of the threaded rod and the sliding rod are in threaded connection with a threaded block and in sliding connection with a sliding block correspondingly, and the bottom ends of the two sides of the supporting frame are fixedly connected with the top ends of the threaded block and the sliding block correspondingly. A third electric push rod is fixedly connected to the center of the lower side surface of the top of the supporting frame, a mounting frame is fixedly connected to the bottom of the third electric push rod, a smashing roller is rotationally connected between the left inner wall and the right inner wall of the mounting frame, side scrapers are fixedly connected to the front side and the rear side of the mounting frame, and a front scraper is fixedly connected to the left side wall of the mounting frame; the sludge crushed by the crushing roller is scraped by arranging the front scraping plate and the side scraping plate, the crushing roller is convenient to clean, and the scraping and cleaning efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of sludge treatment, specifically a scraping device. Background Technique

[0002] With the rapid advancement of industrialization and urbanization, the discharge of industrial wastewater and domestic sewage has increased significantly, resulting in a corresponding increase in sludge production. Sludge contains harmful components such as heavy metals, organic pollutants, parasites, pathogenic bacteria, and odors, and has become a major public hazard affecting urban environmental hygiene; by scientifically treating sludge, harmful substances and pathogenic bacteria can be effectively removed, reducing environmental pollution. At the same time, after treatment, the organic matter and nutrients in the sludge can also be converted into useful resource materials to achieve resource utilization.

[0003] At the current stage, when treating sludge, dehydration and filtration are carried out on the sludge to reduce its water content and then transported out for subsequent treatment methods. However, during the filtration process, the sludge will tightly adhere to the inner wall of the filtration container due to extrusion, making it inconvenient to discharge the material, resulting in more troublesome subsequent cleaning. Utility Model Content

[0004] The purpose of this application is to provide a scraping device, which solves the problem that during filtration, the sludge will tightly adhere to the inner wall of the filtration container due to extrusion, making it inconvenient to discharge the material as mentioned in the background technique.

[0005] To achieve the above purpose, this application provides the following technical solution: A scraping device, including a filter press tank, a support frame, a push plate, and a movable plate. Side openings are provided at both the left and right ends of the filter press tank. At the bottom of the front and back surfaces of the filter press tank, moving grooves are fixedly connected respectively. Inside the moving grooves, a threaded rod is rotatably connected and a sliding rod is fixedly connected respectively. A threaded block is threadedly connected to the surface of the threaded rod and a slider is slidably connected to the surface of the sliding rod. The bottom ends of both sides of the support frame are fixedly connected to the top ends of the threaded block and the slider respectively; at the center of the lower surface of the top of the support frame, a third electric push rod is fixedly connected. The bottom of the third electric push rod is fixedly connected to a mounting frame. A crushing roller is rotatably connected between the left and right inner walls of the mounting frame. Side scrapers are fixedly connected to the front and back sides of the mounting frame. A positive scraper is fixedly connected to the left side wall of the mounting frame; at the upper edge of the front and back sides of the right end of the filter press tank, fixed blocks are fixedly connected respectively. A toothed groove plate is fixedly connected between the fixed blocks. A brush plate is fixedly connected to the top end of the toothed groove plate.

[0006] In this technical solution, the threaded rod rotates under the drive of the first servo motor, causing the threaded block to drive the support frame to move horizontally. After the third electric push rod is activated, it drives the mounting frame and the crushing roller to descend. The crushing roller rotates under the drive of the second servo motor to crush the sludge below, and at the same time moves to the right during the crushing process. During the moving process, the front scraper and the side scraper will scrape the bottom and the front and rear inner walls of the filter press, thereby scraping the sludge off, improving the scraping efficiency of the device; the surface of the toothed groove plate is provided with toothed grooves corresponding to the teeth of the crushing roller. After the third electric push rod shortens and drives the crushing roller to rise to the position of the toothed groove plate and rotate, the teeth of the crushing roller pass through the toothed grooves and are swept by the brush plate, thereby sweeping off the attached massive sludge, ensuring the cleanliness of the tooth surface of the crushing roller and the crushing effect, and improving the cleaning efficiency of the device.

[0007] As an alternative solution of the technical solution of the present application, a first fixed frame is fixedly connected to the outer surface below the left-side opening of the filter press. A first electric push rod is fixedly connected to the surface of the first fixed frame facing the side opening. The other end of the first electric push rod is fixedly connected to a push plate, and the push plate is horizontally slidably connected inside the side opening.

[0008] As an alternative solution of the technical solution of the present application, a second fixed frame is fixedly connected to the outer surface above the right-side opening of the filter press. A second electric push rod is fixedly connected to the lower surface of the top of the second fixed frame. The bottom of the second electric push rod is fixedly connected to a movable plate, and the movable plate penetrates the surface of the filter press from above and is vertically slidably connected inside the side opening.

[0009] As an alternative solution of the technical solution of the present application, a first servo motor is fixedly connected to the outer side wall of the moving groove at the horizontal position of the threaded rod. The outer end of the transmission shaft of the first servo motor is fixedly connected to one end of the threaded rod.

[0010] As an alternative solution of the technical solution of the present application, a second servo motor is fixedly connected to the outer surface of the mounting frame at the horizontal position of the crushing roller. The outer end of the transmission shaft of the second servo motor is fixedly connected to one end of the crushing roller.

[0011] As an alternative solution of the technical solution of the present application, the front and rear ends of the front scraper are respectively in contact with the front and rear inner walls of the filter press. The side scrapers on both sides of the front and rear of the mounting frame are respectively attached to the front and rear inner walls of the filter press, and the bottoms of the front scraper and the side scraper are both lower than the crushing roller.

[0012] Compared with the prior art, the beneficial effects of the present application are as follows:

[0013] 1. The present application can scrape sludge through a threaded rod, a threaded block, a support frame, a third electric push rod, a crushing roller, a front scraper and a side scraper. The threaded rod rotates driven by a first servo motor, causing the threaded block to drive the support frame to move horizontally. After the third electric push rod is activated, it drives the mounting frame and the crushing roller to descend. The crushing roller rotates driven by a second servo motor to crush the sludge below, and at the same time moves to the right during the crushing process. During the moving process, the front scraper and the side scraper will scrape the bottom and the front and rear inner walls of the filter press, thereby scraping the sludge off, facilitating the normal discharge of the sludge, and improving the scraping efficiency of the device.

[0014] 2. The present application can clean the sludge attached to the tooth surface of the crushing roller through a tooth groove plate, a brush plate and the crushing roller. The surface of the tooth groove plate is provided with tooth grooves corresponding to the teeth of the crushing roller. After the third electric push rod shortens to drive the crushing roller to rise to the position of the tooth groove plate and then rotates, the teeth of the crushing roller pass through the tooth grooves and are swept by the brush plate, thereby sweeping off the attached lumpy sludge, ensuring the cleanliness of the tooth surface of the crushing roller and the crushing effect, and improving the cleaning efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, objects and advantages of the present application will become more apparent:

[0016] Figure 1 is the overall view of the scraping device of the present application;

[0017] Figure 2 is the overall sectional schematic diagram of the scraping device of the present application;

[0018] Figure 3 is the sectional schematic diagram at the moving groove of the scraping device of the present application.

[0019] In the figure: 1, filter press; 2, side opening; 201, push plate; 3, first fixing frame; 4, first electric push rod; 5, moving groove; 6, threaded rod; 601, threaded block; 602, first servo motor; 7, sliding rod; 701, slider; 8, support frame; 9, third electric push rod; 10, mounting frame; 11, crushing roller; 111, second servo motor; 12, front scraper; 121, side scraper; 13, movable plate; 14, second electric push rod; 15, second fixing frame; 16, fixing block; 17, tooth groove plate; 18, brush plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the following further elaborates with specific embodiments.

[0021] Scraping device, see Figures 1 to 3, including a pressure filtration tank 1, a support frame 8, a push plate 201 and a movable plate 13. Side openings 2 are provided at both the left and right ends of the pressure filtration tank 1. At the bottom of the front and rear surfaces of the pressure filtration tank 1, moving grooves 5 are fixedly connected respectively. Inside the moving grooves 5, a threaded rod 6 is rotatably connected and a sliding rod 7 is fixedly connected respectively. A threaded block 601 is threadedly connected to the surface of the threaded rod 6 and a slider 701 is slidably connected to the surface of the sliding rod 7. The bottom ends of both sides of the support frame 8 are fixedly connected to the top ends of the threaded block 601 and the slider 701 respectively; in the middle of the lower surface of the top of the support frame 8, a third electric push rod 9 is fixedly connected. The bottom of the third electric push rod 9 is fixedly connected to a mounting frame 10. A crushing roller 11 is rotatably connected between the left and right inner walls of the mounting frame 10. And side scraping plates 121 are fixedly connected to the front and rear sides of the mounting frame 10. A positive scraping plate 12 is fixedly connected to the left side wall of the mounting frame 10. The crushing roller 11 crushes the sludge below, and at the same time moves to the right during the crushing process. During the moving process, the positive scraping plate 12 and the side scraping plates 121 scrape the bottom and the front and rear inner walls of the pressure filtration tank 1, so as to scrape the sludge off, ensuring the normal discharge of the sludge and improving the scraping efficiency.

[0022] At the same time, fixed blocks 16 are fixedly connected to the upper edges of the front and rear sides of the right end of the pressure filtration tank 1. A toothed groove plate 17 is fixedly connected between the fixed blocks 16. A brush plate 18 is fixedly connected to the top of the toothed groove plate 17. The teeth of the crushing roller 11 pass through the toothed grooves and are swept by the brush plate 18, so as to sweep off the attached massive sludge, ensuring the cleanliness of the tooth surface of the crushing roller 11 and its crushing ability.

[0023] Specifically, as Figure 1 shown, a first fixed frame 3 is fixedly connected to the outer surface below the side opening 2 at the left end of the pressure filtration tank 1. A first electric push rod 4 is fixedly connected to the surface of the first fixed frame 3 facing the side opening 2. The other end of the first electric push rod 4 is fixedly connected to the push plate 201. The push plate 201 is horizontally slidably connected inside the side opening 2. The sizes of the push plate 201 and the side opening 2 are the same and they fit the inner wall of the side opening 2, avoiding the leakage of sludge from the gap. After the first electric push rod 4 is started, it will drive the push plate 201 to move to the right, pushing the sludge to move a certain distance to the right, avoiding the sludge at the four corners of the edge from not being scraped.

[0024] It should be noted that, as Figure 1 and Figure 2 shown, a second fixed frame 15 is fixedly connected to the outer surface above the side opening 2 at the right end of the pressure filtration tank 1. A second electric push rod 14 is fixedly connected to the lower surface of the top of the second fixed frame 15. The bottom of the second electric push rod 14 is fixedly connected to the movable plate 13. And the movable plate 13 penetrates the surface of the pressure filtration tank 1 from above and is vertically slidably connected inside the side opening 2.

[0025] It should be noted that, as Figure 3As shown in the figure, a first servo motor 602 is fixedly connected to the outer side wall of the moving groove 5 at the horizontal position of the threaded rod 6. The outer end of the transmission shaft of the first servo motor 602 is fixedly connected to one end of the threaded rod 6. The movable plate 13 fits against the right side opening 2 and blocks it. When discharging is required, it rises under the drive of the second electric push rod 14, thereby opening the side opening 2.

[0026] It should be noted that, as Figure 2 shown in the figure, a second servo motor 111 is fixedly connected to the outer surface of the mounting frame 10 at the horizontal position of the crushing roller 11. The outer end of the transmission shaft of the second servo motor 111 is fixedly connected to one end of the crushing roller 11. After the second servo motor 111 is started, it drives the crushing roller 11 to rotate, and the second servo motor 111 is located behind the side scraper 121, so the influence of sludge can be avoided.

[0027] It should be noted that, as Figure 2 shown in the figure, the front and rear ends of the positive scraper 12 are respectively in contact with the front and rear inner walls of the filter press tank 1. The side scrapers 121 on both sides of the mounting frame 10 are respectively attached to the front and rear inner walls of the filter press tank 1, and the bottoms of the positive scraper 12 and the side scraper 121 are both lower than the crushing roller 11. When the positive scraper 12 moves, it can scrape the bottom and the front and rear inner walls of the filter press tank 1 at the same time. The side scraper 121 can scrape the sludge in front of the positive scraper 12. And after the bottoms of the positive scraper 12 and the side scraper 121 touch the bottom of the filter press tank 1, there is a certain gap between the crushing roller 11 and the bottom surface of the filter press tank 1 to avoid damaging the bottom surface of the filter press tank 1 during crushing.

[0028] During actual use, after the sludge in the filter press tank 1 is filter-pressed, the threaded rod 6 rotates under the drive of the first servo motor 602, so that the threaded block 601 drives the support frame 8 to move horizontally. After the third electric push rod 9 is started, it drives the mounting frame 10 and the crushing roller 11 to descend. The crushing roller 11 rotates under the drive of the second servo motor 111 to crush the sludge below, and moves to the right while crushing. During the moving process, the positive scraper 12 and the side scraper 121 will scrape the bottom and the front and rear inner walls of the filter press tank 1, thereby scraping the sludge off, improving the scraping efficiency of the device. After reaching the right side opening 2, the second electric push rod 14 is started to shorten, driving the movable plate 13 to rise, exposing the right side opening 2, so as to facilitate taking out the sludge; the surface of the toothed groove plate 17 is provided with toothed grooves corresponding to the teeth of the crushing roller 11. After the third electric push rod 9 shortens and drives the crushing roller 11 to rise to the toothed groove plate 17, it rotates. The teeth of the crushing roller 11 pass through the toothed grooves and are swept by the brush plate 18, thereby sweeping off the attached lumpy sludge, ensuring the cleanliness of the tooth surface of the crushing roller 11 and the crushing ability, and improving the cleaning efficiency of the device.

[0029] In addition, the components designed by the present utility model are all common standard components or components known to those skilled in the art. Their structures and principles can all be learned by those skilled in the art through technical manuals or through conventional experimental methods. Those skilled in the art can fully implement them without further elaboration. The content protected by the present utility model does not involve improvements to the internal structure and method either.

[0030] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are all within the protection scope of the present utility model.

Claims

1. A scraping device, comprising a filter press (1), a support frame (8), a push plate (201) and a movable plate (13), characterized in that: The left and right ends of the filter press (1) are both provided with side openings (2); the bottoms of the front and rear side surfaces of the filter press (1) are both fixedly connected with movable grooves (5); the inner sides of the movable grooves (5) are respectively rotatably connected with threaded rods (6) and fixedly connected with sliding rods (7); the surfaces of the threaded rods (6) and sliding rods (7) are respectively threadedly connected with threaded blocks (601) and slidably connected with sliding blocks (701); the bottom ends of both sides of the support frame (8) are respectively fixedly connected with the top ends of the threaded blocks (601) and the sliding blocks (701); the center of the lower side surface of the top of the support frame (8) is fixedly connected with A No. 3 electric push rod (9), the bottom of the No. 3 electric push rod (9) is fixedly connected to a mounting frame (10), a crushing roller (11) is rotatably connected between the left and right inner walls of the mounting frame (10), and side scrapers (121) are fixedly connected to the front and rear sides of the mounting frame (10), and a front scraper (12) is fixedly connected to the left side wall of the mounting frame (10); fixed blocks (16) are fixedly connected to the upper edges of the front and rear sides of the right end of the filter press (1), toothed plates (17) are fixedly connected between the fixed blocks (16), and a brush plate (18) is fixedly connected to the top of the toothed plates (17).

2. The scraper device according to claim 1, characterized in that: A first fixing frame (3) is fixedly connected to the outer surface below the left end side opening (2) of the filter press (1), and a first electric push rod (4) is fixedly connected to the surface of the first fixing frame (3) facing the side opening (2), and the other end of the first electric push rod (4) is fixedly connected to a push plate (201), and the push plate (201) is laterally slidably connected to the inner side of the side opening (2).

3. The scraper device according to claim 1, characterized in that: A No. 2 fixing frame (15) is fixedly connected to the outer surface above the right end side opening (2) of the filter press (1), a No. 2 electric push rod (14) is fixedly connected to the top lower surface of the No. 2 fixing frame (15), a movable plate (13) is fixedly connected to the bottom of the No. 2 electric push rod (14), and the movable plate (13) penetrates the surface of the filter press (1) from above and is vertically slidably connected to the inner side of the side opening (2).

4. The scraper device according to claim 1, characterized in that: A servo motor (602) is fixedly connected to the outer side wall of the movable groove (5) at the horizontal position of the threaded rod (6), and the outer end of the transmission shaft of the servo motor (602) is fixedly connected to one end of the threaded rod (6).

5. The scraper device according to claim 1, characterized in that: A second servo motor (111) is fixedly connected to the outer surface of the mounting frame (10) at the horizontal position of the crushing roller (11), and the outer end of the transmission shaft of the second servo motor (111) is fixedly connected to one end of the crushing roller (11).

6. The scraper device according to claim 1, characterized in that: The front and rear ends of the front scraper (12) are in contact with the front and rear inner walls of the filter press (1) respectively, and the side scrapers (121) on the front and rear sides of the mounting frame (10) are in contact with the front and rear inner walls of the filter press (1) respectively, and the bottoms of the front scraper (12) and the side scrapers (121) are both lower than the crushing roller (11).

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