A biological carrier interception filter cartridge device

Abstract

The present invention belongs to the technical field of sewage purification and treatment, and specifically is a biological carrier interception filter cartridge device, including a flow tube that penetrates the pool body; the end of the flow tube is fixedly connected to a screen cylinder via a flange; the root of the screen cylinder is fixedly connected to the flow tube, and the end of the screen cylinder is rotatably connected to an interception component; the interception component is used to intercept biological carriers, including paddles; by arranging a connecting frame and paddles, the water body is driven to rotate through the flow tube through the screen cylinder, and the rotation of the paddles drives the connecting frame to rotate synchronously on the outside of the screen cylinder, which can break up the biological carriers accumulated on the outside of the screen cylinder, and cooperate with the air intake pipe to continuously intake air. Firstly, it can effectively isolate the biological carriers and prevent them from adhering to the screen cylinder, resulting in low discharge efficiency or inability to discharge the purified water body. Secondly, it can break up the biological carriers accumulated around the screen cylinder, so that they are re-suspended in the water body, participate in the sewage purification treatment, and improve the purification efficiency of traditional biological fluidized beds.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage purification and treatment, in particular to a biological carrier interception filter cartridge device. Background Art

[0002] With the progress of modern industry and the rapid expansion of population, water pollution problems are becoming increasingly serious. At present, the methods of sewage treatment include activated sludge method and biofilm method. The biofilm method is a process that uses a biological fluidized bed reactor to purify water using organisms attached to the filler in the fluidized bed.

[0003] The filler in a biological fluidized bed reactor is also called a biological carrier. When using the organisms attached to the biological carrier to purify water, the carrier particles in the biological fluidized bed reactor can only function in a sulfided state. The principle is to directly add a suspended filler with a specific gravity close to that of water into the aeration tank as an active carrier of microorganisms. It is in a fluidized state due to the aeration and water flow in the aeration tank. When the microorganisms attach to the carrier, the floating carrier moves freely in the reactor with the swirling and flipping action of the mixed liquid, thereby achieving the purpose of sewage treatment. In a traditional biological fluidized bed reactor, when the purified water is discharged through the flow pipe, the biological carrier suspended in the water will enter the flow pipe with the water flow and reach the water screen, causing the water screen to be blocked. As the sewage continues to flow into the biological fluidized bed, the biological carrier in the biological fluidized bed will be lost into the surrounding tank body, and the biological carrier will enter the flow pipe with the water flow. Excessive biological carriers will block the pipe, causing the entire system to have to stop operating and eventually collapse.

[0004] In order to solve the problem of biological carrier loss, in the existing technology, a sieve cylinder is installed on the flow pipe of the biological fluidized bed, and the sieve cylinder is used to intercept the biological carrier outside the flow pipe to prevent the loss of the biological carrier. However, during long-term use, it was found that although the addition of the sieve cylinder intercepts the biological carrier and prevents it from being lost, the biological carrier flows with the water to the edge of the sieve cylinder, where it will accumulate, causing the sieve holes on the sieve cylinder to be blocked, thereby affecting the discharge efficiency of the flow pipe to purify the water body. Moreover, the size of the sieve cylinder on the sieve cylinder is generally set to be smaller than the size of the biological carrier. The sieve holes that are too small will be blocked by the residual mud and sand in the water body, so that even if there is no accumulation of biological carriers at the edge of the sieve cylinder, it will be blocked, affecting the discharge of the purified water body.

[0005] To this end, the present invention provides a biological carrier interception filter cartridge device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the biological carrier interception filter cartridge device described in the present invention includes a flow tube that penetrates the pool body; the end of the flow tube is fixedly connected to a sieve cylinder via a flange; the rear end of the sieve cylinder is fixedly connected to the flow tube, and the front end of the sieve cylinder is rotatably connected to an interception component; the interception component is used to intercept biological carriers, including a paddle; the paddle is rotatably connected to the front end of the sieve cylinder; two symmetrically arranged connecting frames are fixedly connected to the central axis of the paddle, and the connecting frames are parallel to the sieve cylinder; an air intake pipe is fixedly connected to the side of the pool body close to the flow tube, and the bottom of the air intake pipe is parallel to the sieve cylinder; the connecting frame is arranged on the outside of the air intake pipe.

[0008] Preferably, a fixed shaft is fixed to the center of the end of the screen drum; a coupling is fixed to one end of the center axis of the blade facing the fixed shaft; the blade is rotatably connected to the fixed shaft via the coupling; two screws are symmetrically fixed to the surface of the coupling, and two connecting frames are fixed to the screws via nuts.

[0009] Preferably, the connecting frame is configured as an L-shaped structure, including a horizontal plate and a vertical plate; the horizontal plate is fixedly connected to the vertical plate; the horizontal plate is parallel to the screen drum, and the vertical plate is parallel to the end of the screen drum; the end of the vertical plate close to the fixed axis is provided with a bend, and the screw passes through the bend and is fixed to the connecting frame.

[0010] Preferably, a cleaning assembly is movably connected to the inner side of the connecting frame; the cleaning assembly is used to clean the surface of the screen drum; the cleaning assembly includes a connecting plate; a connecting rod is fixedly connected to the side of the connecting plate facing the adjacent connecting frame; the connecting rod passes through the connecting frame; a cleaning roller is rotatably connected to the side of the connecting plate facing the screen drum; the cleaning roller is intermittently in contact with the screen drum.

[0011] Preferably, the cleaning assembly further comprises a cleaning scraper bar; the cleaning scraper bar is fixed to the vertical plate of the connecting frame via bolts, and the cleaning scraper bar is attached to the front end surface of the screen drum.

[0012] Preferably, a connecting rope is passed through the end of the connecting rod away from the cleaning roller, and a counterweight ball is fixed to the connecting rope; a third spring is sleeved on the connecting rod; and both ends of the third spring are respectively fixed between the connecting plate and the connecting frame.

[0013] Preferably, buffer parts are passed through and connected at both ends of the connecting plate, and the buffer parts include a connecting shaft; the connecting shaft passes through the connecting plate; a rubber end is fixedly connected to the end of the connecting shaft facing the screen cylinder, and the root of the connecting shaft is fixedly connected to the baffle; a first spring is sleeved on the connecting shaft, and the first spring is fixed between the baffle and the connecting plate.

[0014] Preferably, a sliding groove is opened on the same side of the connecting frame and the connecting plate, and a hinged rod is slidably connected in the sliding groove; the hinged rod includes a first hinged rod and a second hinged rod; the ends of the first hinged rod and the second hinged rod are respectively slidably connected in two sliding grooves arranged upper and lower; the first hinged rod and the second hinged rod are centrally hinged.

[0015] Preferably, the end of the horizontal plate on the connecting frame close to the flow tube is fixed with a fan blade via a connecting shaft; the two connecting frames are fixed with a ring plate at one end close to the flow tube; a slot is provided on the ring plate; the connecting shaft passes through the slot, and the ring plate is fixed to the connecting frame via the connecting shaft.

[0016] Preferably, a fixing groove is provided on the inner side of the connecting plate; mounting shafts are fixedly connected to both ends of the fixing groove; mounting holes are provided at both ends of the cleaning roller, and the mounting shafts are clamped in the mounting holes; a through groove is provided on the bottom surface of the fixing groove; and the through groove passes through the connecting plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The bio-carrier interception filter cartridge device described in the present invention is provided with a connecting frame and paddles. The paddles are driven to rotate by water passing through the sieve drum and the flow pipe. The rotation of the paddles drives the connecting frame to rotate synchronously on the outside of the sieve drum, thereby breaking up the bio-carriers accumulated on the outside of the sieve drum. The device cooperates with the air intake pipe to continuously intake air. Firstly, it can effectively isolate the bio-carriers and prevent them from adhering to the sieve drum, resulting in low or impossible discharge efficiency of the purified water. Secondly, it can break up the bio-carriers accumulated around the sieve drum and re-suspend them in the water to participate in the sewage purification treatment, thereby improving the purification efficiency of traditional biological fluidized beds.

[0019] 2. The bio-carrier interception filter cartridge device of the present invention is provided with a cleaning assembly. When the connecting frame rotates, the cleaning assembly is driven to rotate synchronously. When the cleaning assembly rotates, it drives the cleaning roller and the connecting plate to intermittently contact the surface of the screen drum. The cleaning roller contacts the screen drum and generates impact, which can clear the blocked screen holes on the screen drum, that is, loosen the sediment in the blocked screen holes, and prevent the screen holes on the screen drum from being blocked and affecting the water discharge efficiency.

[0020] 3. The biological carrier interception filter cartridge device described in the present invention can disturb the water body close to one end of the flow pipe by setting fan blades and using a connecting frame to drive the fan blades to rotate synchronously, so that the biological carriers broken up by the connecting frame can flow back to the end away from the flow pipe under the action of the water body disturbed by the fan blades, and re-participate in the sewage treatment process, thereby improving the purification effect of the biological carriers in the pool body on sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 is a perspective view of embodiment 1 of the present invention;

[0023] Figure 2 is a three-dimensional diagram of the interception assembly and the screen drum in the first embodiment of the present invention;

[0024] Figure 3 This is an exploded perspective view of the interception assembly and the screen drum in the first embodiment of the present invention;

[0025] Figure 4 is a perspective view of the interception assembly in the first embodiment of the present invention;

[0026] Figure 5 is an exploded perspective view of the interception assembly in the first embodiment of the present invention;

[0027] Figure 6 is a perspective view of the connecting frame and the cleaning assembly in the first embodiment of the present invention;

[0028] Figure 7 This is an exploded perspective view of the connecting frame and the cleaning assembly in the first embodiment of the present invention;

[0029] Figure 8 is a three-dimensional diagram of the connecting plate and the cleaning roller in the first embodiment of the present invention;

[0030] Figure 9 is a three-dimensional diagram of the connecting plate and the counterweight ball in the first embodiment of the present invention;

[0031] Figure 10 is a perspective view of a cleaning roller in a second embodiment of the present invention;

[0032] Figure 11 is a partial cross-sectional view of the cleaning roller in the second embodiment of the present invention;

[0033] In the figure: 1. pool body; 2. flow pipe; 3. air inlet pipe; 4. fan blade; 41. connecting shaft; 5. screen drum; 51. fixed shaft; 6. connecting frame; 61. connecting rod; 62. connecting rope; 63. counterweight ball; 64. hinged rod; 65. connecting plate; 651. fixing groove; 652. mounting shaft; 653. through groove; 66. buffer member; 661. connecting shaft; 662. rubber end; 663. first spring; 67. cleaning roller; 671. movable end; 672. second spring; 673. movable groove; 68. cleaning scraper; 69. third spring; 7. ring plate; 71. slot; 8. paddle; 81. coupling. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0035] like Figures 1 to 3 As shown, a biological carrier interception filter cartridge device described in an embodiment of the present invention includes a flow tube 2 passing through a pool body 1; the end of the flow tube 2 is fixedly connected to a sieve drum 5 via a flange; the rear end of the sieve drum 5 is fixedly connected to the flow tube 2, and the front end of the sieve drum 5 is rotatably connected to an interception assembly; the interception assembly is used to intercept biological carriers, and includes a paddle 8; the paddle 8 is rotatably connected to the front end of the sieve drum 5; two symmetrically arranged connecting frames 6 are fixedly connected to the central axis of the paddle 8, and the connecting frames 6 are parallel to the sieve drum 5; an air inlet pipe 3 is fixedly connected to the side of the pool body 1 close to the flow tube 2, and the bottom of the air inlet pipe 3 is parallel to the sieve drum 5; the connecting frame 6 is arranged on the outside of the air inlet pipe 3. Based on the existing technology, a sieve drum 5 is installed at the end of the flow pipe 2, and the purified water is discharged through the sieve drum 5, which can effectively intercept the biological carriers suspended in the water; in order to prevent the biological carriers from accumulating on the edge of the sieve drum 5, an air knife is set at the adjacent position of the sieve drum 5 in the existing technology, and the bubbles generated by the continuous air intake isolate the biological carriers from adhering to the edge of the sieve drum 5, and the air knife is generally arranged in parallel to the bottom of the sieve drum 5. However, the current use of the air knife cannot completely break up the biological carriers, and can only make the biological carriers near the sieve drum 5 maintain a certain distance from the sieve drum 5. Although the purified water can pass through, the biological carriers in the biological fluidized bed are accumulated in one place, which will cause the biological fluidized bed to greatly reduce the sewage treatment effect. Therefore, in order to further remove the biological carriers accumulated on the edge of the sieve drum 5, In order to break up the biological carriers, an interception component is set at the end of the screen drum 5. When in use, the water flow direction generated by the discharge of purified water drives the paddle 8 on the interception component to rotate, that is, the purified water flows toward one end of the flow pipe 2, and the two connecting frames 6 are driven to rotate by the paddle 8. When the connecting frame 6 rotates, the biological carriers accumulated near the screen drum 5 can be scattered, and the air intake pipe 3 is continuously fed with air. First, the biological carriers can be effectively isolated to prevent them from adhering to the screen drum 5, resulting in low discharge efficiency or inability to discharge the purified water. Second, the biological carriers accumulated around the screen drum 5 can be broken up and re-suspended in the water to participate in the purification of sewage, thereby improving the purification efficiency of the traditional biological fluidized bed. The speed of the connecting frame 6 driven by the paddle 8 will not be too fast.

[0036] like Figure 3As shown, a fixed shaft 51 is fixed to the center of the end of the sieve drum 5; a coupling 81 is fixed to one end of the central axis of the paddle 8 facing the fixed shaft 51; the paddle 8 is rotatably connected to the fixed shaft 51 via the coupling 81; two screws are symmetrically fixed to the surface of the coupling 81, and two connecting frames 6 are fixed to the screws via nuts. The paddle 8 is rotatably connected to the fixed shaft 51 via the coupling 81. Specifically, a bearing should be installed on the inside of the coupling 81 to enable the paddle 8 to rotate on the fixed shaft 51. The screw on the surface of the coupling 81 can be used to fix to the connecting frame 6, so that the connecting frame 6 can rotate synchronously with the outside of the sieve drum 5 when the paddle 8 rotates, thereby breaking up the biological carriers accumulated around the sieve drum 5.

[0037] like Figures 4 and 5 As shown, the connecting frame 6 is configured as an L-shaped structure, comprising a horizontal plate and a vertical plate; the horizontal plate is fixedly connected to the vertical plate; the horizontal plate is parallel to the sieve drum 5, and the vertical plate is parallel to the end of the sieve drum 5; the end of the vertical plate near the fixed shaft 51 is provided with a bend, and a screw passes through the bend and is fixed to the connecting frame 6. The vertical plate on the connecting frame 6 is used to fix to the screw on the coupling, while the horizontal plate is parallel to the sieve drum 5. After rotation, it can disperse the biological carriers accumulated on the outside of the sieve drum 5, thereby allowing the biological carriers to re-enter the sewage treatment process. The bend provided on the end of the vertical plate has a semi-circular groove, and the screw passes through the semi-circular groove and is tightened with a nut.

[0038] like Figure 5As shown, a cleaning assembly is movably connected to the inner side of the connecting frame 6; the cleaning assembly is used to clean the surface of the screen drum 5; the cleaning assembly includes a connecting plate 65; the connecting plate 65 is fixedly connected to a connecting rod 61 on the side facing the connecting frame 6; the connecting rod 61 passes through the connecting frame 6; the connecting plate 65 is rotatably connected to a cleaning roller 67 on the side facing the screen drum 5; the cleaning roller 67 is intermittently in contact with the screen drum 5. After the sewage is treated by the biological fluidized bed, it still needs to pass through the flow pipe 2 to enter the subsequent purification process for further purification. Therefore, after the sewage is discharged from the biological fluidized bed, there is still a part of sediment in the water body. When designing the size of the screen drum 5, in order to prevent the biological carrier from passing through the sieve holes on the screen drum 5 and through the flow pipe 2, the sieve holes on the screen drum 5 are generally small in size. When the sediment passes through the sieve holes with the water body, the too-small sieve holes will cause the sediment to be blocked, resulting in a decrease in the rate at which the water body passes through the screen drum 5. In order to clean the sediment blocked in the sieve holes, the screen drum 5 needs to be cleaned regularly. The cleaning method adopted in the prior art is generally high-pressure flushing after disassembly, and this cleaning method requires downtime for a period of time, which has a certain impact on the efficiency of sewage treatment. In order to clean the screen drum 5 without stopping the machine, the present invention provides a cleaning component on the connecting frame 6. During the rotation of the connecting frame 6, the cleaning roller 67 can contact the screen. The drum 5 vibrates the silt blocked in the sieve holes, loosening the blocked silt, thereby clearing the blocked sieve holes under the action of water pressure, wherein the connecting rod 61 is used to connect the connecting plate 65 and the connecting frame 6. During the rotation of the connecting frame 6, due to the gravity of the cleaning roller 67 and the connecting plate 65 themselves, when they are connected with the connecting frame 6 through the connecting rod 61, the distance between the cleaning roller 67, the connecting plate 65 and the sieve drum 5 can change. Specifically, when the connecting frame 6 rotates to the bottom of the sieve drum 5, the cleaning roller 67 and the connecting plate 65 are away from the sieve drum 5. When the connecting frame 6 rotates to the top of the sieve drum 5, the cleaning roller 67 and the connecting plate 65 are close to the sieve drum 5. Then, when the cleaning roller 67 and the connecting plate 65 intermittently contact the sieve drum 5 by the connecting rod 61, they can hit the sieve drum 5 when contacting the sieve drum 5, so that the blocked sieve holes on the sieve drum 5 are cleared; wherein the cleaning roller 67 can wipe the loose silt from the surface of the sieve drum 5.

[0039] like Figure 6 As shown, the cleaning assembly further includes a cleaning scraper 68, which is bolted to the vertical plate of the connecting frame 6 and abuts against the front end surface of the sieve drum 5. When the connecting frame 6 rotates, the cleaning scraper 68 on the vertical plate can continuously rotate along with the vertical plate on the front end surface of the sieve drum 5, thereby cleaning the end surface of the sieve drum 5.

[0040] like Figures 6 to 9As shown, the end of the connecting rod 61 away from the cleaning roller 67 is connected to a connecting rope 62, and a counterweight ball 63 is fixed to the connecting rope 62; a third spring 69 is sleeved on the connecting rod 61; the third spring 69 is fixed between the connecting plate 65 and the connecting frame 6. As the cleaning roller 67 and the connecting plate 65 rotate with the connecting frame 6, the distance between them and the screen drum 5 changes under the action of gravity, which causes the cleaning roller 67 to intermittently contact the screen drum 5. In order to strengthen the contact force between the cleaning roller 67 and the screen drum 5, a counterweight ball 63 is fixed to the end of the connecting rod 61 through the connecting rope 62. When the cleaning roller 67 and the connecting plate 65 rotate with the connecting frame 6, due to the presence of the counterweight ball 63, when the cleaning roller 67 and the connecting plate 65 approach the screen drum 5, they can exert a greater impact force on the screen drum 5, thereby vibrating the mud and sand blocking the sieve holes on the screen drum 5, loosening the mud and sand, and thus clearing the blocked sieve holes; The third spring 69 connected to the connecting rod 61 is compressed when the counterweight ball 63 moves in the direction away from the screen drum 5 and drives the cleaning roller 67 and the connecting plate 65 to move toward the side of the connecting frame 6. In the process of rotating the cleaning roller 67 and the connecting plate 65 to the vertical upper part of the screen drum 5, the gravity of the counterweight ball 63, the cleaning roller 67 and the connecting plate 65 is superimposed, so that the cleaning roller 67 can fit against the outside of the screen drum 5. Combined with the reaction force of the compression of the third spring 69, the cleaning roller 67 generates an impact force on the screen drum 5 when it contacts the outside of the screen drum 5, making it easier to loosen the mud and sand blocked on the screen drum 5, thereby achieving the purpose of clearing the blocked sieve holes on the screen drum 5.

[0041] like Figures 7 to 9 As shown, the two ends of the connecting plate 65 are penetrated and connected with a buffer member 66, and the buffer member 66 includes a connecting shaft 661; the connecting shaft 661 penetrates the connecting plate 65; the end of the connecting shaft 661 facing the screen drum 5 is fixed with a rubber end head 662, and the root of the connecting shaft 661 is fixed to the baffle; the connecting shaft 661 is sleeved with a first spring 663, and the first spring 663 is fixed between the baffle and the connecting plate 65. When the cleaning roller 67 approaches the surface of the screen drum 5, due to the reaction force of the third spring 69 and the gravity of the cleaning roller 67, the connecting plate 65 and the counterweight ball 63, a large impact force is generated when the cleaning roller 67 contacts the screen drum 5. Although the blocked sieve holes on the surface of the screen drum 5 can be cleared, the wear rate of the cleaning component may increase. In order to avoid violent impact, the buffer parts 66 arranged at both ends of the connecting plate 65 can be in contact with the surface of the screen drum 5 in advance, and the deformation of the rubber end 662 can be used to produce a buffering effect. In conjunction with the first spring 663 on the connecting shaft 661, the cleaning component can be effectively prevented from violently colliding with the outer edge of the screen drum 5, thereby reducing the wear of the cleaning component.

[0042] like Figures 4 and 5As shown, a sliding groove is formed on the same side of the connecting frame 6 and the connecting plate 65, and a hinge rod 64 is slidably connected to the sliding groove. The hinge rod 64 includes a first hinge rod and a second hinge rod. The ends of the first hinge rod 64 and the second hinge rod 64 are respectively slidably connected in two sliding grooves arranged above and below. The first hinge rod 64 and the second hinge rod 64 are centrally hinged. Because the connecting plate 65 passes through the connecting frame 6 via multiple connecting rods 61, when the counterweight ball 63, the cleaning roller 67 and the connecting plate 65 are separated from the surface of the screen drum 5, in order to further ensure that the connecting plate 65 and the cleaning roller 67 move parallel to the connecting frame 6 and improve the stability of the connecting plate 65 and the cleaning roller 67 during movement, resulting in insufficient cleaning areas when the connecting plate 65 and the cleaning roller 67 intermittently contact the screen drum 5. Therefore, the first hinge rod 64 and the second hinge rod 64 slide in cooperation with the connecting frame 6 and the connecting plate 65 respectively, ensuring that the connecting plate 65 always remains parallel to the outer surface of the screen drum 5 during movement.

[0043] like Figures 2 to 6 As shown, the end of the horizontal plate on the connecting frame 6 close to the flow pipe 2 is fixedly connected to the fan blade 4 via the connecting shaft 41; the ends of the two connecting frames 6 close to the flow pipe 2 are fixedly connected to the ring plate 7; the ring plate is provided with a slot 71; the connecting shaft 41 passes through the slot 71, and the ring plate 7 is fixed to the connecting frame 6 via the connecting shaft 41. In order to enhance the flow of water in the flow pipe 2 and use the flowing water to drive the dispersed biological carriers to re-participate in sewage purification, the fan blade 4 provided on the connecting frame 6 can rotate synchronously with the rotation of the connecting frame 6. When the fan blade 4 rotates, it can disturb the water, so that the water at the fan blade 4 can flow toward the end away from the flow pipe 2, thereby driving the dispersed biological carriers to be evenly dispersed in the tank body 1 again, and the sewage treatment effect is improved to a certain extent compared with the existing tank body 1; the provision of the ring plate 7 can fix the ends of the two connecting frames 6, so that the connecting frame 6 remains stable during the rotation process.

[0044] like Figure 9 As shown, a fixing groove 651 is formed on the inner side of the connecting plate 65; mounting shafts 652 are fixedly connected to both ends of the fixing groove 651; mounting holes are formed on both ends of the cleaning roller 67, and the mounting shafts 652 are clamped in the mounting holes; a through groove 653 is formed on the bottom surface of the fixing groove 651; the through groove 653 passes through the connecting plate 65. The cleaning roller 67 is a consumable part. When the cleaning efficiency of the cleaning roller 67 decreases, the scrapped cleaning roller 67 can be directly removed and replaced with a new one. During installation, the mounting holes at both ends of the cleaning roller 67 are connected to the mounting shafts 652 at both ends of the fixing groove 651 to replace the cleaning roller 67. The through groove 653 can enhance the circulation of water and prevent the sediment remaining on the cleaning roller 67 from accumulating in the fixing groove 651 after the cleaning roller 67 cleans the surface of the screen drum 5. Example 2

[0045] like Figures 10 and 11 As shown, in order to facilitate the installation of the cleaning roller 67, compared with Example 1, another embodiment of the present invention is as follows: the two ends of the cleaning roller 67 are slidably matched with movable end heads 671; movable grooves 673 are provided at both ends of the cleaning roller 67, and the movable end heads 671 are slidably connected in the movable grooves 673; a second spring 672 is provided between the movable end heads 671 and the end of the cleaning roller 67; an insertion rod is fixedly connected to one end of the movable end head 671 facing the cleaning roller 67; the insertion rod is movably connected in the movable groove 673; and the second spring 672 is sleeved on the insertion rod.

[0046] Working principle: Although the sieve drum 5 is added to the biological fluidized bed in the prior art to intercept the biological carrier and prevent it from being lost, the biological carrier will accumulate when it flows with the water to the edge of the sieve drum 5, causing the sieve holes on the sieve drum 5 to be blocked, thereby affecting the discharge efficiency of the flow pipe 2 to purify the water body. The sieve drum 5 is generally smaller than the size of the biological carrier. The sieve holes that are too small will be blocked by the residual mud and sand in the water body, so that even if there is no biological carrier accumulation at the edge of the sieve drum 5, it will be blocked, affecting the discharge of the purified water body.

[0047] In order to prevent the biological carriers from clogging the screen drum 5, based on the existing technology, a screen drum 5 is installed at the end of the flow pipe 2, and the purified water is discharged through the screen drum 5, which can effectively intercept the biological carriers suspended in the water; in order to prevent the biological carriers from accumulating at the edge of the screen drum 5, an air knife is set at the adjacent position of the screen drum 5 in the existing technology, and the bubbles generated by the continuous air intake isolate the biological carriers from adhering to the edge of the screen drum 5, and the air knife is generally arranged in parallel at the bottom of the screen drum 5. However, the current use of the air knife cannot completely break up the biological carriers, and can only keep the biological carriers near the screen drum 5 at a certain distance from the screen drum 5. Although the purified water can pass through, the biological carriers in the biological fluidized bed are accumulated in one place, which will greatly reduce the treatment effect of the biological fluidized bed on sewage. Therefore, in order to further break up the biological carriers accumulated at the edge of the screen drum 5, an interception component is set at the end of the screen drum 5. When in use, the water flow direction generated by the discharge of the purified water drives the paddle 8 on the interception component to rotate, that is, the purified water flows toward one end of the flow pipe 2, and the paddle 8 drives the two connected The frame 6 rotates. When the connecting frame 6 rotates, the biological carriers accumulated near the screen drum 5 can be scattered. With the continuous air intake of the air inlet pipe 3, the biological carriers can be effectively isolated to prevent them from adhering to the screen drum 5, resulting in low discharge efficiency or inability to discharge the purified water body. Secondly, the biological carriers accumulated around the screen drum 5 can be broken up and re-suspended in the water body to participate in the sewage purification process, thereby improving the purification efficiency of the traditional biological fluidized bed. In order to enhance the flow of the water body at the flow pipe 2, the broken biological carriers are driven by the flowing water body to re-participate in the sewage purification. The fan blades 4 provided on the connecting frame 6 can rotate synchronously with the rotation of the connecting frame 6. When the fan blades 4 rotate, the water body can be disturbed, so that the water body at the fan blades 4 can flow toward the end away from the flow pipe 2, thereby driving the broken biological carriers to be evenly dispersed in the pool body 1 again, and the sewage treatment effect is improved to a certain extent compared with the existing pool body 1. The setting of the ring plate can fix the ends of the two connecting frames 6, so that the connecting frame 6 remains stable during the rotation process.

[0048] After the sewage is treated by the biological fluidized bed, it still needs to pass through the flow pipe 2 to enter the subsequent purification process for further purification. Therefore, after the sewage is discharged from the biological fluidized bed, there is still a part of sediment in the water body. When designing the size of the screen drum 5, in order to prevent the biological carrier from passing through the sieve holes on the screen drum 5 and passing through the flow pipe 2, the sieve holes on the screen drum 5 are generally small in size. When the sediment passes through the sieve holes with the water body, the too-small sieve holes will cause the sediment to be blocked, resulting in a decrease in the rate at which the water body passes through the screen drum 5. In order to clean the sediment blocked in the sieve holes, the screen drum 5 needs to be cleaned regularly, including disassembly and high-pressure washing. This cleaning method requires downtime for a period of time, which has a certain impact on the efficiency of sewage treatment. In order to clean the screen drum without stopping the machine, 5. A cleaning assembly is provided on the connecting frame 6. During the rotation of the connecting frame 6, the cleaning roller 67 can contact the screen drum 5 to vibrate the silt blocked in the sieve holes, so as to loosen the blocked silt, thereby dredging the blocked sieve holes under the action of water pressure. The connecting frame 6 is used to connect the connecting plate 65 and the connecting frame 6. During the rotation of the connecting frame 6, due to the gravity of the cleaning roller 67 and the connecting plate 65 themselves, when they are connected to the connecting frame 6 through the connecting rod 61, the distance between the cleaning roller 67, the connecting plate 65 and the connecting frame 6 can change. Then, when the cleaning roller 67 and the connecting plate 65 intermittently contact the sieve drum 5 by means of the connecting rod 61, they can hit the sieve drum 5 when they contact the sieve drum 5, so that the blocked sieve holes on the sieve drum 5 are dredged.

[0049] As the cleaning roller 67 and the connecting plate 65 rotate with the connecting frame 6, the distance between them and the connecting frame 6 changes under the action of gravity, which causes the cleaning roller 67 to intermittently contact the screen drum 5. In order to strengthen the contact force between the cleaning roller 67 and the screen drum 5, a counterweight ball 63 is fixed to the end of the connecting rod 61 through a connecting rope 62. When the cleaning roller 67 and the connecting plate 65 rotate with the connecting frame 6, due to the presence of the counterweight ball 63, the cleaning roller 67 and the connecting plate 65 intermittently contact the screen drum 5, which can strengthen the contact force between the cleaning roller 67 and the screen drum 5. The screen drum 5 exerts a greater impact force, thereby being able to vibrate the sediment in the blocked screen holes on the screen drum 5, loosening the sediment, thereby achieving the dredging of the blocked screen holes; wherein the third spring 69 sleeved on the connecting rod 61, when the counterweight ball 63 moves in the direction away from the screen drum 5 and drives the cleaning roller 67 and the connecting plate 65 to move toward the side of the connecting frame 6, the third spring 69 is compressed, and when the cleaning roller 67 and the connecting plate 65 rotate to the vertical upper part of the screen drum 5, the counterweight ball 63 and the cleaning roller 67 are compressed. , and the gravity of the connecting plate 65 enable the cleaning roller 67 to fit the outer side of the screen drum 5. Cooperating with the reaction force of the compression of the third spring 69, the cleaning roller 67 generates an impact force on the screen drum 5 when contacting the outer side of the screen drum 5, making it easier to loosen the mud and sand blocked on the screen drum 5, thereby achieving the purpose of unblocking the blocked sieve holes on the screen drum 5. When the cleaning roller 67 intermittently contacts the surface of the screen drum 5, due to the reaction force of the third spring 69 and the gravity of the cleaning roller 67, the connecting plate 65 and the counterweight ball 63, a large impact force is generated when the cleaning roller 67 contacts the screen drum 5. Although the blocked sieve holes on the surface of the screen drum 5 can be unblocked, it may increase the consumption rate of the cleaning component. In order to avoid violent impact, the buffer members 66 provided at both ends of the connecting plate 65 can be in contact with the surface of the screen drum 5 in advance, and the deformation of the rubber end 662 can be used to generate a buffering effect. Cooperating with the first spring 663 on the connecting shaft 661, it can effectively prevent the cleaning component from violently impacting the outer side of the screen drum 5, causing an increase in the consumption rate of the cleaning component.

[0050] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A biological carrier interception filter cartridge device, characterized by: The invention comprises a flow tube (2) passing through a pool body (1); the end of the flow tube (2) is fixedly connected to a sieve drum (5) via a flange; the rear end of the sieve drum (5) is fixedly connected to the flow tube (2), and the front end of the sieve drum (5) is rotatably connected to an interception assembly; the interception assembly is used to intercept biological carriers and comprises a paddle (8); the paddle (8) is rotatably connected to the front end of the sieve drum (5); two symmetrically arranged connecting frames (6) are fixedly connected to the central axis of the paddle (8), and the connecting frame (6) is set as an L-shaped structure, comprising a horizontal plate and a vertical plate; the horizontal plate is fixedly connected to the vertical plate; the horizontal plate is parallel to the sieve drum (5), and the vertical plate is parallel to the end of the sieve drum (5); an air inlet pipe (3) is fixedly connected to the side of the pool body (1) close to the flow tube (2), and the bottom of the air inlet pipe (3) is parallel to the sieve drum (5); the connecting frame (6) is arranged outside the air inlet pipe (3).

2. The biological carrier interception filter cartridge device according to claim 1, characterized in that: A fixed shaft (51) is fixedly connected to the center of the end of the screen drum (5); a coupling (81) is fixedly connected to one end of the central axis of the blade (8) facing the fixed shaft (51); the blade (8) is rotatably connected to the fixed shaft (51) via the coupling (81); two screws are symmetrically fixed to the surface of the coupling (81), and two connecting frames (6) are fixedly connected to the screws via nuts; The end of the vertical plate close to the fixed shaft (51) is provided with a bend, and the screw rod passes through the bend and is fixedly connected to the connecting frame (6).

3. The biological carrier interception filter cartridge device according to claim 2, characterized in that: A cleaning assembly is movably connected to the inner side of the connecting frame (6); the cleaning assembly is used to clean the surface of the screen drum (5); the cleaning assembly includes a connecting plate (65); a connecting rod (61) is fixedly connected to the side of the connecting plate (65) facing the connecting frame (6); the connecting rod (61) passes through the connecting frame (6); a cleaning roller (67) is rotatably connected to the side of the connecting plate (65) facing the screen drum (5); the cleaning roller (67) is intermittently in contact with the screen drum (5).

4. The biological carrier interception filter cartridge device according to claim 3, characterized in that: The cleaning assembly further comprises a cleaning scraper (68); the cleaning scraper (68) is fixed to the vertical plate of the connecting frame (6) via bolts, and the cleaning scraper (68) is attached to the front end surface of the screen drum (5).

5. The biological carrier interception filter cartridge device according to claim 4, characterized in that: The end of the connecting rod (61) away from the cleaning roller (67) is connected to a connecting rope (62), and a counterweight ball (63) is fixed to the connecting rope (62); a third spring (69) is sleeved on the connecting rod (61); and both ends of the third spring (69) are respectively fixed between the connecting plate (65) and the connecting frame (6).

6. The biological carrier interception filter cartridge device according to claim 5, characterized in that: Buffering members (66) are connected through both ends of the connecting plate (65), and the buffering member (66) includes a connecting shaft (661); the connecting shaft (661) passes through the connecting plate (65); a rubber end (662) is fixedly connected to the end of the connecting shaft (661) facing the screen drum (5), and the root of the connecting shaft (661) is fixedly connected to the baffle; a first spring (663) is sleeved on the connecting shaft (661), and the first spring (663) is fixedly connected between the baffle and the connecting plate (65).

7. The biological carrier interception filter cartridge device according to claim 6, characterized in that: A sliding groove is provided on the same side of the connecting frame (6) and the connecting plate (65), and a hinge rod (64) is slidably connected in the sliding groove; the hinge rod (64) includes a first hinge rod (64) and a second hinge rod (64); the ends of the first hinge rod (64) and the second hinge rod (64) are slidably connected in two sliding grooves arranged above and below; the first hinge rod (64) and the second hinge rod (64) are centrally hinged.

8. The biological carrier interception filter cartridge device according to claim 7, characterized in that: The fan blade (4) is fixedly connected to one end of the upper horizontal plate of the connecting frame (6) close to the flow tube (2) via a connecting shaft (41); the ring plates (7) are fixedly connected to one end of the two connecting frames (6) close to the flow tube (2); a clamping groove (71) is provided on the ring plates; the connecting shaft (41) passes through the clamping groove (71), and the ring plates (7) are fixedly connected to the connecting frame (6) via the connecting shaft (41).

9. The biological carrier interception filter cartridge device according to claim 8, characterized in that: A fixing groove (651) is provided on the inner side of the connecting plate (65); mounting shafts (652) are fixedly connected to both ends of the fixing groove (651); mounting holes are provided at both ends of the cleaning roller (67), and the mounting shafts (652) are clamped in the mounting holes; a through groove (653) is provided on the bottom surface of the fixing groove (651); and the through groove (653) passes through the connecting plate (65).

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