A suction filter mud scraping device

Abstract

This utility model relates to the technical field of sludge scraping devices for suction filters, specifically a sludge scraping device for a suction filter, comprising: a frame, and further comprising: a scraper fixedly installed on the upper part of one end of the frame, two vertically arranged guide rods fixedly installed on the upper part of the scraper, and the slag discharge end of the filter cloth belt being fitted against the upper end face of the scraper; a horizontal moving platform is provided above the scraper, and the upper end of the guide rod is slidably inserted through one side of the moving platform, and a transmission mechanism is fixedly installed on the other side of the moving platform; the transmission mechanism includes a loading plate, and pressure rods evenly distributed are slidably inserted into the bottom of the loading plate. In this utility model, the device can pre-treat the filter bag by a vibration and tapping structure, so that the sludge cake can be pre-loosened to facilitate efficient cleaning by the scraper later; and the device can perform double-sided blowing on the filter cloth after scraping, thereby further cleaning the fine filter residue on the surface of the filter cloth.

Description

Technical Field

[0001] This utility model relates to the technical field of sludge scraping devices for suction filters, specifically a sludge scraping device for a suction filter. Background Technology

[0002] Belt filter presses are solid-liquid separation devices widely used in industries such as chemical and food processing. Their working principle involves using vacuum suction to dewater the material on the filter cloth. During continuous operation, the filter cake on the surface of the filter cloth needs to be effectively removed in the discharge zone to ensure filter cloth regeneration and subsequent filtration efficiency. However, existing filter press scraping devices still have some problems.

[0003] The sludge scraping devices on the market only clean the surface of the filter cloth by the contact of the scraper blades. The cleaning efficiency of the device is low, and filter residue is easily generated on the surface of the filter cloth during the use of the device. Utility Model Content

[0004] The purpose of this utility model is to provide a sludge scraping device for a suction filter to solve the following problems mentioned in the background art: the existing sludge scraping devices for suction filters on the market only clean the surface of the filter cloth belt by the contact of the scraper, the cleaning efficiency of the device is low, and filter residue is easily generated on the surface of the filter cloth during the use of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sludge scraping device for a suction filter, comprising:

[0006] The frame further includes: a scraper fixedly installed on the upper part of one end of the frame; two vertically arranged guide rods fixedly installed on the upper part of the scraper; the slag discharge end of the filter cloth belt is attached to the upper end face of the scraper; a horizontal moving platform is provided above the scraper; the upper end of the guide rod is slidably inserted through one side of the moving platform; and a transmission mechanism is fixedly installed on the other side of the moving platform. The transmission mechanism includes a loading plate; pressure rods with equal spacing are slidably inserted into the bottom of the loading plate; and the bottom ends of the pressure rods are vertically fixedly installed on the upper surface of the moving platform. The filter cloth belt is rotatably installed on the frame; a rubber conveyor belt is attached to the inner top side of the filter cloth belt; the rubber conveyor belt is rotatably installed on the inner top side of the frame; and the upper port of the suction box is attached to the bottom of the through hole of the top belt of the rubber conveyor belt. The electric cylinder of the suction box is fixedly installed on the frame.

[0007] Preferably, the two sides of the moving platform are fitted together on the top inner side of the frame, and the bottom of the moving platform is fixedly installed with equally spaced impact heads. The interior of the impact head is connected to the corresponding air port on the bottom surface of the moving platform, and the two sides of the impact head are fixedly installed with symmetrically distributed air vents. The top of the moving platform is fixedly connected to the air outlet of the first air pipe, so that the moving platform can drive the impact head to move.

[0008] Preferably, the two ends of the loading plate are slidably embedded in the mounting groove at the top of the frame, and a pressure spring is fixedly connected between the top of the inner wall of the loading plate and the upper end face of the pressure rod. The upper end of the transmission plate is fixedly installed at the end of the loading plate, and the middle part of the transmission plate slides through the frame. A force-bearing rod is fixedly installed at the bottom of the transmission plate, so that the force-bearing rod can drive the transmission plate to move.

[0009] Preferably, the bottom sidewall of the transmission plate is fitted with the surface of the rotating disk, and the axis of the transmission plate passes through the center of the rotating disk. The sidewall of the rotating disk is provided with an annular guide groove, and the end of the force-bearing rod is fitted with the top inner side of the guide groove. The end of the rotating roller of the rubber conveyor belt is fixedly installed through the axis of the rotating disk, so that the rotating disk can drive the force-bearing rod to move.

[0010] Preferably, a connecting box and an air pump are fixedly installed on the outer wall of the frame, and the air outlet of the air pump is fixedly installed through the end of the connecting box. The air inlets of the first air pipe, the second air pipe and the third air pipe are fixedly connected on the outer wall of the connecting box. The air outlets of the second air pipe and the third air pipe are respectively fixedly connected to the inner air box and the outer air box, so that the gas in the connecting box can enter the second air pipe.

[0011] Preferably, the end of the inner air box is fixedly installed through the side wall of the frame, and the top of the outer air box is fixedly installed on the scraper. The inner air box and the outer air box are respectively located on the inner and outer sides of the filter cloth belt, with the inner air box located below the outer air box. The side wall of the inner air box is fixedly connected with equally spaced inner nozzles, which are perpendicular to the inner wall of the filter cloth belt. The side wall of the outer air box is fixedly connected with equally spaced outer nozzles, which are inclined towards the outer wall of the filter cloth belt, so that the gas in the outer air box can be ejected through the outer nozzles.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the device can pre-treat the filter bag by a vibration and tapping structure, loosening the sludge cake in advance to facilitate efficient cleaning by the scraper. Furthermore, the device can perform double-sided blowing on the filter cloth after scraping, further cleaning the fine filter residue on the surface of the filter cloth. The specific details are as follows:

[0014] 1. The two sides of the moving platform are fitted together on the inner top of the frame. The bottom of the moving platform is fixedly installed with impact heads distributed at equal intervals. The two ends of the loading plate are slidably embedded in the mounting grooves on the top of the frame. A pressure spring is fixedly connected between the top of the inner wall of the loading plate and the upper end face of the pressure rod. The upper end of the transmission plate is fixedly installed at the end of the loading plate. The middle part of the transmission plate slides through the frame. A force rod is fixedly installed at the bottom of the transmission plate. The axis of the transmission plate passes through the center of the rotating disk. An annular guide groove is opened on the side wall of the rotating disk. The end of the force rod is fitted together on the inner top of the guide groove, so that the rotating disk can drive the force rod to move through the guide groove. The force rod can drive the loading plate and the pressure rod to move synchronously through the transmission plate. The pressure rod will drive the moving platform and the impact head to move synchronously, so that the impact head can strike the filter cake on the filter cloth belt.

[0015] 2. The air outlet of the air pump is fixedly installed at the end of the connecting box. The air inlets of the first, second, and third air pipes are fixedly connected to the outer wall of the connecting box. The air outlets of the second and third air pipes are respectively fixedly connected to the inner air box and the outer air box. The end of the inner air box is fixedly installed through the side wall of the frame. The top of the outer air box is fixedly installed on the scraper. The inner air box is located below the outer air box. The side wall of the inner air box is fixedly connected to the equally spaced inner nozzles, which are perpendicular to the inner wall of the filter cloth. The side wall of the outer air box is fixedly connected to the equally spaced outer nozzles, which are inclined towards the outer wall of the filter cloth. This allows the high-pressure airflow in the connecting box to enter the inner and outer air boxes through the second and third air pipes, and the airflow ejected from the inner and outer air boxes is used to clean the inner and outer sides of the filter cloth. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation structure of the mobile platform of this utility model;

[0018] Figure 3 This is a schematic diagram of the pressure bar installation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating disk mounting structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the load-bearing rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the installation structure of the external air box of this utility model.

[0022] In the diagram: 1. Frame; 2. Scraper; 3. Guide rod; 4. Moving platform; 5. Impact head; 6. Ventilation plate; 7. First air pipe; 8. Transmission mechanism; 801. Loading plate; 802. Pressure rod; 803. Pressure spring; 804. Transmission plate; 805. Force rod; 806. Rotating disc; 807. Guide groove; 9. Connecting box; 10. Air pump; 11. Second air pipe; 12. Inner air box; 13. Inner nozzle; 14. Third air pipe; 15. Outer air box; 16. Outer nozzle; 17. Filter cloth belt; 18. Rubber conveyor belt; 19. Suction box. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-6 This utility model provides a technical solution: a sludge scraping device for a suction filter, comprising:

[0025] The frame 1 also includes: a scraper 2 fixedly installed on the upper part of one end of the frame 1, two vertically arranged guide rods 3 fixedly installed on the upper part of the scraper 2, and the slag discharge end of the filter cloth belt 17 is attached to the upper end of the scraper 2. A horizontal moving platform 4 is provided above the scraper 2, and the upper end of the guide rod 3 is slidably inserted through one side of the moving platform 4. A transmission mechanism 8 is fixedly installed on the other side of the moving platform 4. The transmission mechanism 8 includes a loading plate 801. Pressure rods 802 are slidably inserted at equal intervals at the bottom of the loading plate 801. The bottom end of the pressure rod 802 is vertically fixedly installed on the upper surface of the moving platform 4. The filter cloth belt 17 is rotatably installed on the frame 1. A rubber conveyor belt 18 is attached to the inner top of the filter cloth belt 17. The rubber conveyor belt 18 is rotatably installed on the inner top of the frame 1. The upper port of the suction box 19 is attached to the bottom of the through hole of the top belt of the rubber conveyor belt 18. The electric cylinder of the suction box 19 is fixedly installed on the frame 1.

[0026] The bottom sidewall of the transmission plate 804 is fitted with the surface of the rotating disk 806, and the axis of the transmission plate 804 passes through the center of the rotating disk 806. An annular guide groove 807 is formed on the sidewall of the rotating disk 806, and the end of a force-bearing rod 805 is fitted to the inner top of the guide groove 807. The end of a rotating roller of a rubber conveyor belt 18 is fixedly installed through the axis of the rotating disk 806, allowing the rotating disk 806 to move the force-bearing rod 805 via the guide groove 807. The two ends of the loading plate 801 are slidably embedded in the mounting grooves at the top of the frame 1, and a pressure spring 803 is fixedly connected between the top of the inner wall of the loading plate 801 and the upper end face of the pressure rod 802. The ends of the loading plate 801 are fixedly mounted... The upper end of the transmission plate 804 is provided, and the middle part of the transmission plate 804 slides through the frame 1. The bottom of the transmission plate 804 is fixedly installed with a force rod 805. At this time, the force rod 805 can drive the loading plate 801 to move back and forth through the transmission plate 804. The two sides of the moving table 4 are attached to the top inner side of the frame 1. The bottom of the moving table 4 is fixedly installed with equally spaced impact heads 5. The inside of the impact head 5 is connected to the corresponding air port on the bottom surface of the moving table 4. The two sides of the impact head 5 are fixedly installed with symmetrically distributed air vents 6. The top of the moving table 4 is fixedly connected with the air outlet of the first air pipe 7. At this time, the loading plate 801 will drive the moving table 4 and the impact head 5 to move synchronously through the pressure rod 802.

[0027] A connecting box 9 and an air pump 10 are fixedly installed on the outer wall of the frame 1. The air outlet of the air pump 10 is fixedly installed through the end of the connecting box 9. The air inlets of the first air pipe 7, the second air pipe 11, and the third air pipe 14 are fixedly connected to the outer wall of the connecting box 9. The air outlets of the second air pipe 11 and the third air pipe 14 are respectively fixedly connected to the inner air box 12 and the outer air box 15, so that the gas in the connecting box 9 can enter the first air pipe 7, the second air pipe 11, and the third air pipe 14. The end of the inner air box 12 is fixedly installed through the side wall of the frame 1, and the top of the outer air box 15 is fixedly installed through the side wall of the frame 1. The inner air box 12 and the outer air box 15 are fixedly installed on the scraper frame 2 and are respectively located on the inner and outer sides of the filter cloth belt 17. The inner air box 12 is located below the outer air box 15. The inner air box 12 is fixedly connected to the side wall with equally spaced inner nozzles 13, and the inner nozzles 13 are vertically facing the inner wall of the filter cloth belt 17. The outer air box 15 is fixedly connected to the side wall with equally spaced outer nozzles 16, and the outer nozzles 16 are inclined towards the outer wall of the filter cloth belt 17, so that the airflow ejected from the inner air box 12 and the outer air box 15 can clean the filter cloth belt 17.

[0028] The usage and advantages of this utility model: The working process of the sludge scraping device of the suction filter is as follows:

[0029] See Figures 1-6During operation, the slurry moves on top of the filter cloth belt 17, with the belt body of the filter cloth belt 17 adhering to the top of the rubber conveyor belt 18. At this time, the suction box 19 generates negative pressure at the bottom of the discharge hole of the rubber conveyor belt 18, allowing the water in the slurry to be filtered out through the filter cloth belt 17. During this process, the rotating roller of the rubber conveyor belt 18 drives the rotating disk 806 to rotate, and the guide groove 807 on the rotating disk 806 drives the transmission plate 804 and the loading plate 801 to move up and down reciprocally through the force rod 805. The loading plate 801 drives the pressure rod 802 and the moving table 4 to move synchronously through the pressure spring 803. The impact head 5 at the bottom of the moving table 4 can strike the filter residue on top of the filter cloth belt 17, making the dried slurry... During the pre-loosening of the filter residue, the air pump 10 will start simultaneously, sending gas into the connecting box 9. The gas in the connecting box 9 will enter the first air pipe 7, the second air pipe 11, and the third air pipe 14. The gas in the first air pipe 7 will enter the impact head 5 through the moving platform 4. The gas in the impact head 5 can be sprayed out through the permeable plate 6 to improve the loosening effect. Then, the filter residue on the filter cloth belt 17 will be scraped off by the upper end of the scraper 2. At the same time, the gas in the third air pipe 14 can be sprayed onto the outer wall of the filter cloth belt 17 through the outer air box 15 and the outer nozzle 16 for cleaning. Then, the gas in the second air pipe 11 can be sprayed out through the inner air box 12 and the inner nozzle 13 to clean the inner wall of the filter cloth belt 17.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sludge scraping device for a suction filter, comprising: The frame (1) is characterized in that it further includes: a scraper (2) is fixedly installed on the upper part of one end of the frame (1), two vertically arranged guide rods (3) are fixedly installed on the upper part of the scraper (2), and the slag discharge end of the filter cloth belt (17) is attached to the upper end face of the scraper (2), a horizontal moving platform (4) is provided above the scraper (2), and the upper end of the guide rod (3) is slidably provided through one side of the moving platform (4), and a transmission mechanism (8) is fixedly installed on the other side of the moving platform (4), the transmission mechanism (8) including a loading plate (801), the loading plate (801) has pressure rods (802) slidably inserted at the bottom, and the bottom end of the pressure rods (802) is vertically fixed on the upper surface of the moving platform (4). The filter cloth belt (17) is rotatably mounted on the frame (1), and a rubber conveyor belt (18) is attached to the inner side of the top of the filter cloth belt (17). The rubber conveyor belt (18) is rotatably mounted on the inner side of the top of the frame (1), and the upper port of the air suction box (19) is attached to the bottom of the through hole of the top belt body of the rubber conveyor belt (18). The electric cylinder of the air suction box (19) is fixedly mounted on the frame (1).

2. The sludge scraping device for a suction filter according to claim 1, characterized in that, The two sides of the moving platform (4) are fitted together on the top inner side of the frame (1), and the bottom of the moving platform (4) is fixedly installed with equally spaced impact heads (5). The interior of the impact head (5) is connected to the corresponding air port on the bottom surface of the moving platform (4), and the two sides of the impact head (5) are fixedly connected with symmetrically distributed air vents (6). The top of the moving platform (4) is fixedly connected to the air outlet of the first air pipe (7).

3. The sludge scraping device for a suction filter according to claim 1, characterized in that, The two ends of the loading plate (801) are slidably embedded in the mounting groove at the top of the frame (1), and a pressure spring (803) is fixedly connected between the top of the inner wall of the loading plate (801) and the upper end face of the pressure rod (802). The upper end of the transmission plate (804) is fixedly installed at the end of the loading plate (801), and the middle part of the transmission plate (804) is slidably inserted through the frame (1). A force rod (805) is fixedly installed at the bottom of the transmission plate (804).

4. The sludge scraping device for a suction filter according to claim 3, characterized in that, The bottom sidewall of the transmission plate (804) is fitted with the surface of the rotating disk (806), and the axis of the transmission plate (804) passes through the center of the rotating disk (806). The sidewall of the rotating disk (806) is provided with an annular guide groove (807), and the end of the force rod (805) is fitted with the inner side of the top of the guide groove (807). The end of the rotating roller of the rubber conveyor belt (18) is fixedly installed through the axis of the rotating disk (806).

5. The sludge scraping device for a suction filter according to claim 1, characterized in that, A connecting box (9) and an air pump (10) are fixedly installed on the outer wall of the frame (1), and the air outlet of the air pump (10) is fixedly installed through the end of the connecting box (9). The air inlets of the first air pipe (7), the second air pipe (11) and the third air pipe (14) are fixedly connected on the outer wall of the connecting box (9). The air outlets of the second air pipe (11) and the third air pipe (14) are respectively fixedly connected to the inner air box (12) and the outer air box (15).

6. A sludge scraping device for a suction filter according to claim 5, characterized in that, The end of the inner air box (12) is fixedly installed through the side wall of the frame (1), and the top of the outer air box (15) is fixedly installed on the scraper (2). The inner air box (12) and the outer air box (15) are respectively installed on the inner and outer sides of the filter cloth belt (17), and the inner air box (12) is located below the outer air box (15). The inner air box (12) is fixedly connected with an equally spaced inner nozzle (13) on the side wall of the inner air box (12), and the inner nozzle (13) is perpendicular to the inner wall of the filter cloth belt (17). The outer air box (15) is fixedly connected with an equally spaced outer nozzle (16), and the outer nozzle (16) is inclined towards the outer wall of the filter cloth belt (17).

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