Fiber intercepting and filtering device for papermaking wastewater and use method of fiber intercepting and filtering device

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a fiber intercepting and filtering device for papermaking wastewater and a treatment method thereof.The fiber intercepting and filtering device comprises a fiber filtering mechanism, the fiber filtering mechanism further comprises a shell, and a mounting plate is connected to the side wall of the shell in a penetrating mode. The top water flow is limited by the impurity pipe to form two water flows and make contact with the top of the rotating frame, impact force borne by falling acts on the top of the rotating frame, the rotating frame is forced to rotate downwards with the outer wall of the rotating column as the center point, at the moment, the distance between the supporting frame and the rotating frame is shortened, and the telescopic spring is pressed to contract. And along with downward movement of the rotating frame, the material blocking sliding plate breaks through the top of the rotating frame, so that the rotating frame and the material blocking sliding plate form a hook claw, a sewage part penetrates through a gap between the rotating frame and the supporting frame, and fibers stay at the top of the supporting frame under the influence of the hook claw formed by the rotating frame and the material blocking sliding plate.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment equipment, and in particular to a fiber interception and filtering device for papermaking wastewater and a use method thereof. Background Art

[0002] In the process of paper production, a large amount of wastewater will be generated. The sewage discharged from paper mills pollutes the environment in the following ways: it pollutes water sources. In addition to harmful chemical inorganic substances, printing and dyeing sewage also contains volatile phenols, precipitated solids, suspended matter, lignin and other organic matter. After the sewage is left to stand, a large amount of precipitation will appear, which is also part of sewage treatment. However, the sewage precipitation in the existing technology has a long cycle. If the standing time is insufficient, the precipitation effect is not good, which will cause some pulp waste.

[0003] Among them, various fine fibers will be produced in the papermaking process. If the fibers are not carefully separated, they will adhere to other impurities in the pipeline to form clumps. The above clumps are prone to accumulation at the corners of the pipeline, eventually causing pipeline blockage. To address the above problems, the following solutions are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a fiber interception and filtration device for papermaking wastewater, comprising a fiber filtration mechanism, the fiber filtration mechanism also comprising a shell, a mounting plate is connected through the side wall of the shell, and an impurity pipe is fixedly connected to the inner wall of the shell;

[0005] The discharging mechanism further comprises a supporting bracket fixedly connected to the inner wall of the impurity pipe, a rotating cylinder is rotatably connected to the inner wall of the supporting bracket, and a cleaning rod is fixedly connected to the side wall of the rotating cylinder;

[0006] The limiting mechanism includes an L-shaped rod fixedly connected to the bottom of the supporting bracket, an inclined sliding rod is slidably connected to the inner wall of the through hole of the L-shaped rod, a pulling spring is fixedly connected to the side wall of the inclined sliding rod, and one end of the pulling spring away from the inclined sliding rod is fixedly connected to the bottom of the L-shaped rod.

[0007] Preferably, the fiber filtering mechanism also includes a rotating column rotatably connected to the inner wall of the mounting plate, a plurality of support frames are fixedly connected to the side wall of the rotating column, a plurality of rotating frames are rotatably connected to the side wall of the rotating column, and a filter screen is fixedly connected to the inner wall of the outer shell.

[0008] Preferably, the fiber filtering mechanism also includes a fixing ring fixedly connected to the outer wall of the shell, a material blocking slide is fixedly connected to the top of the support frame, a plurality of telescopic springs are fixedly connected to the top of the support frame, an impurity inlet is opened at the side wall of the impurity tube, and a support frame and a rotating frame are arranged inside the device by utilizing the impact force of water flow from top to bottom. When the device is used, the external water pipe is connected to the top of the shell, and the top water flow is restricted by the impurity tube to form two water flows and contact the top of the rotating frame. In this process, the impact force of the fall will act on the top of the rotating frame, and force the rotating frame to rotate downward with the outer wall of the rotating column as the center point. The distance between the support frame and the rotating frame is reduced, and the telescopic spring is compressed and contracted. As the rotating frame moves downward, the material-blocking slide plate will break through the top of the rotating frame, so that the rotating frame and the material-blocking slide plate form a hook, presenting the state shown in Figure 4. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame and the support frame, and the fiber-like long impurities will be affected by the hook formed by the rotating frame and the material-blocking slide plate and stay on the top of the support frame. After the fiber-like impurities are mixed with water, a certain viscosity will be generated, and the fiber impurities will adhere to the top of the rotating frame. Through the application of the above components, most of the fibers inside the wastewater can be collected to avoid fiber blockage inside the equipment.

[0009] Preferably, the discharging mechanism also includes a support column rotatably connected to the inner wall of the mounting plate, a cross frame is fixedly connected to the side wall of the support column, a gear plate is fixedly connected to the side wall of the cross frame, a gear ring 1 is fixedly connected to the side wall of the rotating column, a driving block is fixedly connected to the side wall of the gear plate, a U-shaped rod is slidably connected to the side wall of the mounting plate, the outer wall of the driving block is slidably connected to the inner wall of the U-shaped rod, the water flow is used to impact the rotating frame, and the force exerted on the rotating frame is transmitted to the rotating column through the telescopic spring, so that the rotating column rotates, the rotating column drives the gear plate to rotate through the gear ring 1, and the gear plate drives the cross frame to rotate through the support column, wherein the cross frame and the support frame form a cross state, and under the influence of the gear ring 1 and the gear plate, the cross frame and the support frame rotate in opposite directions, the fiber impurities become sticky due to water, and will stick to the surface of the rotating frame, and at this time the cross frame passes through the gap of the support frame and drives the impurities to leave the surface of the support frame.

[0010] Preferably, the discharging mechanism also includes a pushing block fixedly connected to the side wall of the U-shaped rod, and a gear rod is fixedly connected to the side wall of the pushing block, and the outer wall of the gear rod is slidably connected to the through hole of the side wall of the shell. In addition, during the rotation of the rotating column, the supporting frame and the rotating frame will be driven to rotate with the rotating column as the center. When the supporting frame and the rotating frame fall out of the water flow, the pressure on the rotating frame is reduced, and the telescopic spring releases mechanical power, forcing the distance between the supporting frame and the rotating frame to expand, and the protruding part of the material blocking slide plate will be retracted into the inside of the rotating frame. Through the application of the above components, the sticky fibers in the equipment can be effectively removed and the impurity removal efficiency of the equipment can be improved.

[0011] Preferably, the limiting mechanism also includes a spring telescopic rod fixedly connected to the top of the rotating cylinder, a cleaning ring is slidably connected to the outer wall of the cleaning rod, the top of the cleaning ring is rotatably connected to a limiting wheel, and the bottom of the rotating cylinder is rotatably connected to a gear ring 2, the outer wall of the gear ring 2 is meshed with the outer wall of the gear rod, and utilizing the characteristic that the cleaning rod regularly cleans the surface of the filter screen, a cleaning ring and a limiting wheel are arranged inside the equipment, and when the cleaning rod rotates for cleaning, the fibers that fall on the top of the filter screen are removed and finally discharged into the interior of the impurity pipe through the impurity inlet, wherein the horizontal height of the limiting wheel is higher than the highest point of the impurity inlet, and when the rotating cylinder rotates, the cleaning rod will pass through the impurity inlet to reach the top of the filter screen, and in this process, the limiting wheel will contact the inner wall of the impurity pipe, and as the cleaning rod continues to rotate, the limiting wheel will force the cleaning ring to move along the outer wall of the cleaning rod, so that the cleaning ring forms a state as shown in FIG. 9 The spring retractable rod will release the mechanical power to make the limiting wheel and the cleaning ring move outward along the outer wall of the cleaning rod to remove the fine fibers stuck on the surface of the cleaning rod, so as to avoid the fine fibers sticking to the surface of the cleaning rod after being wetted with water, thereby affecting the subsequent cleaning effect of the cleaning rod; in addition, during the use of the inclined sliding rod, when the gear ring 2 rotates counterclockwise, the tooth gap of the gear ring 2 will contact the inclined surface of the inclined sliding rod, forcing the inclined sliding rod to move downward along the through hole of the L-shaped rod, and enter the next tooth gap of the gear ring 2 under the action of the pulling spring. After the gear ring 2 completes its rotation, the vertical surface of the inclined sliding rod will contact the outer surface of the limiting square plate, so as to avoid the thrust generated during the contraction of the spring retractable rod, causing the cleaning rod to rotate clockwise.

[0012] Preferably, the limiting mechanism also includes a fixed column fixedly connected to the bottom of the rotating cylinder, a limited square plate fixedly connected to the side wall of the fixed column, a rotating plate rotatably connected to the inner wall of the fixed column, and a plurality of pressure blocks fixedly connected to the inner wall of the gear ring 2. Utilizing the regular rotation characteristics of the above-mentioned gear plate, a driving block and a U-shaped rod are arranged inside the device. When the gear plate rotates, the driving block will drive the U-shaped rod to slide regularly along the outer wall of the mounting plate, and at the same time, the U-shaped rod drives the gear rod to move through the pushing block. When the gear rod moves horizontally to the left and right, it will present the state shown in Figure 10. When the gear rod moves horizontally to the left, the gear ring 2 will produce a clockwise rotation. Rotate, at this time, the side of the pressure block contacts the side of the rotating plate, and forces the rotating plate to rotate with the outer surface of the fixed column as the center. At this time, the gear ring 2 will not be able to drive the fixed column and the rotating cylinder to rotate. When the gear rod moves horizontally to the right, the gear ring 2 rotates counterclockwise. At this time, the pressure block will contact the other side of the rotating plate, and the rotating plate is restricted by the limiting square plate. At this time, the pressure block will drive the fixed column and the rotating cylinder to rotate through the rotating plate, and the rotating cylinder drives several cleaning rods to clean the surface of the filter. Through the application of the above components, it is prevented that shorter fibers cannot be hooked by the rotating frame, causing the holes of the filter to be blocked.

[0013] A method for using a fiber interception and filtration device for papermaking wastewater comprises the following steps:

[0014] S1: When using the equipment, connect the external water pipe to the top of the shell, and ensure that the top water flow is restricted by the impurity pipe to form two water flows and contact the top of the rotating frame;

[0015] S2: The impact force of the falling water will act on the top of the rotating frame and force the rotating frame to rotate downward with the outer wall of the rotating column as the center point. At this time, the distance between the support frame and the rotating frame is reduced, and the telescopic spring is compressed and contracted;

[0016] S3: As the rotating frame moves downward, the material-blocking slide plate will break through the top of the rotating frame, so that the rotating frame and the material-blocking slide plate form a hook. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame and the support frame, while the fiber-like long impurities will be affected by the hook formed by the rotating frame and the material-blocking slide plate and stay on the top of the support frame.

[0017] The present invention has the following beneficial effects:

[0018] (1) The present invention utilizes the impact force of water flow from top to bottom, and a support frame and a rotating frame are arranged inside the device. When the device is used, the external water pipe is connected to the top of the shell, and the top water flow is restricted by the impurity pipe to form two water flows and contact the top of the rotating frame. In this process, the impact force of the fall will act on the top of the rotating frame and force the rotating frame to rotate downward with the outer wall of the rotating column as the center point. At this time, the distance between the support frame and the rotating frame is reduced, and the telescopic spring is compressed and contracted. As the rotating frame moves downward, the material blocking slide plate will break through the top of the rotating frame, so that the rotating frame and the material blocking slide plate form a hook claw, presenting the state shown in Figure 4. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame and the support frame, while the fiber-like long impurities will be affected by the hook claw formed by the rotating frame and the material blocking slide plate and stay on the top of the support frame. After the fiber-like impurities are mixed with water, a certain viscosity will be generated, and the fiber impurities will adhere to the top of the rotating frame. Through the application of the above components, most of the fibers in the wastewater are collected to avoid the fibers from causing blockage inside the device.

[0019] (2) The present invention utilizes the above-mentioned water flow to impact the rotating frame, and the force exerted on the rotating frame is transmitted to the rotating column through the telescopic spring, so that the rotating column rotates, and the rotating column drives the gear plate to rotate through the gear ring 1, and the gear plate drives the cross frame to rotate through the support column, wherein the cross frame and the support frame form a cross state, and under the influence of the gear ring 1 and the gear plate, the rotation directions of the cross frame and the support frame are opposite, and the fiber impurities will adhere to the surface of the rotating frame due to the stickiness caused by water, and at this time the cross frame passes through the gap of the support frame and drives the impurities to separate from the surface of the support frame; in addition, during the rotation process, the rotating column will drive the support frame and the rotating frame to rotate with the rotating column as the center, and when the support frame and the rotating frame fall off the water flow, the pressure exerted on the rotating frame is reduced, and the telescopic spring releases mechanical power, forcing the distance between the support frame and the rotating frame to expand, and the protruding part of the material blocking slide plate will be retracted into the inside of the rotating frame. Through the application of the above-mentioned components, the sticky fibers in the equipment can be effectively removed, and the impurity removal efficiency of the equipment can be improved.

[0020] (3) The present invention utilizes the characteristic of the regular rotation of the above-mentioned gear plate, and a driving block and a U-shaped rod are arranged inside the device. When the gear plate rotates, the driving block will drive the U-shaped rod to slide regularly along the outer wall of the mounting plate, and at the same time, the U-shaped rod drives the gear rod to move through the pushing block. When the gear rod moves horizontally to the left, it will present the state shown in Figure 10. When the gear rod moves horizontally to the left, the gear ring 2 will rotate clockwise. At this time, the side of the pressure block contacts the side of the rotating plate and forces the rotating plate to rotate around the outer surface of the fixed column. At this time, the gear ring 2 will not be able to drive the fixed column and the rotating cylinder to rotate. When the gear rod moves horizontally to the right, the gear ring 2 will rotate counterclockwise. At this time, the pressure block will contact the other side of the rotating plate. The rotating plate is restricted by the limiting square plate. At this time, the pressure block will drive the fixed column and the rotating cylinder to rotate through the rotating plate, and the rotating cylinder drives a number of cleaning rods to clean the surface of the filter screen. Through the application of the above-mentioned components, it is avoided that shorter fibers cannot be hooked by the rotating frame, causing the holes of the filter screen to be blocked.

[0021] (4) The present invention utilizes the characteristic that the cleaning rod regularly cleans the surface of the filter screen. A cleaning ring and a limiting wheel are arranged inside the device. When the cleaning rod rotates for cleaning, the fibers that fall on the top of the filter screen are removed and finally discharged into the interior of the impurity tube through the impurity inlet. The horizontal height of the limiting wheel is higher than the highest point of the impurity inlet. When the rotating cylinder rotates, the cleaning rod will pass through the impurity inlet to reach the top of the filter screen. During this process, the limiting wheel will contact the inner wall of the impurity tube. As the cleaning rod continues to rotate, the limiting wheel will force the cleaning ring to move along the outer wall of the cleaning rod, so that the cleaning ring forms the state shown in FIG. 9. As the rotating cylinder rotates unidirectionally, the cleaning rod outside the impurity tube will return to the interior of the impurity tube again. At this time, the limiting wheel loses its Due to the restriction of the inner wall of the impurity tube, the spring telescopic rod will release mechanical power to make the limiting wheel and the cleaning ring move outward along the outer wall of the cleaning rod to remove the fine fibers stuck on the surface of the cleaning rod, so as to avoid the fine fibers sticking to the surface of the cleaning rod after being soaked in water, thereby affecting the subsequent cleaning effect of the cleaning rod; in addition, during the use of the inclined sliding rod, when the gear ring 2 rotates counterclockwise, the tooth gap of the gear ring 2 will contact the inclined surface of the inclined sliding rod, forcing the inclined sliding rod to move downward along the through hole of the L-shaped rod, and under the action of the pulling spring, enter the next tooth gap of the gear ring 2; after the gear ring 2 completes the rotation, the vertical surface of the inclined sliding rod will contact the outer surface of the limiting square plate, thereby avoiding the thrust generated during the contraction of the spring telescopic rod, which causes the cleaning rod to rotate clockwise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] FIG1 is an exploded schematic diagram of the overall structural assembly of the present invention;

[0024] Fig. 2 is a schematic diagram of the overall structure of the present invention;

[0025] FIG3 is a schematic cross-sectional view of a fiber filtering mechanism of the present invention;

[0026] FIG4 is an enlarged schematic diagram of A in FIG3 of the present invention;

[0027] FIG5 is a schematic diagram of the internal components of the discharge mechanism of the present invention;

[0028] FIG6 is a cross-sectional schematic diagram of a discharge mechanism of the present invention;

[0029] FIG7 is a cross-sectional schematic diagram of a limiting mechanism of the present invention;

[0030] FIG8 is an enlarged schematic diagram of C in FIG7 of the present invention;

[0031] FIG9 is an enlarged schematic diagram of B in FIG7 of the present invention;

[0032] FIG10 is a schematic diagram of the internal components of the limiting mechanism of the present invention;

[0033] FIG11 is an enlarged schematic diagram of D in FIG10 of the present invention;

[0034] FIG. 12 is a schematic diagram of the workflow of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] In the figure: 1. Fiber filtering mechanism; 101. Housing; 102. Mounting plate; 103. Impurity pipe; 104. Rotating column; 105. Support frame; 106. Rotating frame; 107. Filter screen; 108. Fixed ring; 109. Material blocking slide plate; 110. Telescopic spring; 111. Impurity inlet; 2. Discharging mechanism; 201. Support column; 202. Cross frame; 203. Gear plate; 204. Gear ring 1; 205. Driving block; 206, U-shaped rod; 207, pushing block; 208, gear rod; 209, supporting bracket; 210, rotating cylinder; 211, cleaning rod; 3, limiting mechanism; 301, L-shaped rod; 302, inclined sliding rod; 303, pulling spring; 304, spring telescopic rod; 305, cleaning ring; 306, limiting wheel; 307, gear ring II; 308, fixing column; 309, limiting square plate; 310, rotating plate; 311, pressure block. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1, please refer to Figures 1 to 4, the present invention is a fiber interception and filtration device for papermaking wastewater, including a fiber filtration mechanism 1, the fiber filtration mechanism 1 also includes a shell 101, a mounting plate 102 is connected through the side wall of the shell 101, and an impurity pipe 103 is fixedly connected to the inner wall of the shell 101;

[0039] The discharge mechanism 2 further comprises a support bracket 209 fixedly connected to the inner wall of the impurity pipe 103, a rotating cylinder 210 is rotatably connected to the inner wall of the support bracket 209, and a cleaning rod 211 is fixedly connected to the side wall of the rotating cylinder 210;

[0040] The limiting mechanism 3 includes an L-shaped rod 301 fixedly connected to the bottom of the supporting bracket 209, a sloped sliding rod 302 is slidably connected to the inner wall of the through hole of the L-shaped rod 301, a pulling spring 303 is fixedly connected to the side wall of the sloped sliding rod 302, and one end of the pulling spring 303 away from the sloped sliding rod 302 is fixedly connected to the bottom of the L-shaped rod 301.

[0041] The fiber filtering mechanism 1 also includes a rotating column 104 rotatably connected to the inner wall of the mounting plate 102, a plurality of support frames 105 are fixedly connected to the side wall of the rotating column 104, a plurality of rotating frames 106 are rotatably connected to the side wall of the rotating column 104, and a filter screen 107 is fixedly connected to the inner wall of the outer shell 101.

[0042] The fiber filtering mechanism 1 also includes a fixing ring 108 fixedly connected to the outer wall of the shell 101, a material blocking slide 109 is fixedly connected to the top of the support frame 105, a plurality of telescopic springs 110 are fixedly connected to the top of the support frame 105, and an impurity inlet 111 is opened at the side wall of the impurity pipe 103. By utilizing the impact force of the water flow from top to bottom, a support frame 105 and a rotating frame 106 are arranged inside the device. When using the device, the external water pipe is connected to the top of the shell 101, and the top water flow is restricted by the impurity pipe 103 to form two water flows and contact the top of the rotating frame 106. In this process, the impact force of the fall will act on the top of the rotating frame 106, and force the rotating frame 106 to generate downward with the outer wall of the rotating column 104 as the center point. Rotate, at this time the distance between the support frame 105 and the rotating frame 106 is reduced, the telescopic spring 110 is compressed and contracted, and as the rotating frame 106 moves downward, the material blocking slide 109 will break through the top of the rotating frame 106, so that the rotating frame 106 and the material blocking slide 109 form a hook, presenting the state as shown in Figure 4, in the falling wastewater, the sewage part will penetrate the gap between the rotating frame 106 and the support frame 105, and the fiber long impurities will be affected by the hook formed by the rotating frame 106 and the material blocking slide 109, and stay on the top of the support frame 105, and the fiber impurities will produce a certain viscosity after mixing with water, and the fiber impurities will adhere to the top of the rotating frame 106. Through the application of the above components, most of the fibers inside the wastewater are collected to avoid fiber blockage inside the equipment.

[0043] Embodiment 2, please refer to Figures 5 to 12. The present invention is a fiber interception and filtering device for papermaking wastewater. On the basis of embodiment 1, the discharge mechanism 2 also includes a support column 201 rotatably connected to the inner wall of the mounting plate 102, a cross frame 202 is fixedly connected to the side wall of the support column 201, a gear plate 203 is fixedly connected to the side wall of the cross frame 202, a gear ring 204 is fixedly connected to the side wall of the rotating column 104, a driving block 205 is fixedly connected to the side wall of the gear plate 203, a U-shaped rod 206 is slidably connected to the side wall of the mounting plate 102, and the outer wall of the driving block 205 is slidably connected to the inner wall of the U-shaped rod 206, and the above-mentioned water flow impacts the rotating frame 10 6, and the force exerted on the rotating frame 106 is transmitted to the rotating column 104 through the telescopic spring 110, so that the rotating column 104 rotates, and the rotating column 104 drives the gear plate 203 to rotate through the gear ring 1 204, and the gear plate 203 drives the cross frame 202 to rotate through the support column 201, wherein the cross frame 202 and the support frame 105 form a cross state, and under the influence of the gear ring 1 204 and the gear plate 203, the cross frame 202 and the support frame 105 rotate in opposite directions, and the fiber impurities become sticky due to water and will adhere to the surface of the rotating frame 106, and at this time, the cross frame 202 passes through the gap of the support frame 105 and drives the impurities to leave the surface of the support frame 105.

[0044] The discharging mechanism 2 also includes a pushing block 207 fixedly connected to the side wall of the U-shaped rod 206, and a toothed rod 208 is fixedly connected to the side wall of the pushing block 207. The outer wall of the toothed rod 208 is slidably connected to the side wall through hole of the shell 101. In addition, during the rotation of the rotating column 104, the supporting frame 105 and the rotating frame 106 will be driven to rotate around the rotating column 104. When the supporting frame 105 and the rotating frame 106 fall off the water flow, the pressure on the rotating frame 106 is reduced, and the telescopic spring 110 releases mechanical power, forcing the distance between the supporting frame 105 and the rotating frame 106 to expand. The part of the top of the material blocking slide plate 109 that exceeds the rotating frame 106 will continue to shrink as the rotating frame 106 moves upward under the push of the telescopic spring 110, and finally the excess fiber will be scraped off by the cross frame 202. Through the application of the above components, the sticky fibers in the equipment are effectively removed, and the impurity removal efficiency of the equipment is improved.

[0045] The limiting mechanism 3 also includes a spring telescopic rod 304 fixedly connected to the top of the rotating cylinder 210, a cleaning ring 305 is slidably connected to the outer wall of the cleaning rod 211, a limiting wheel 306 is rotatably connected to the top of the cleaning ring 305, and a gear ring 2 307 is rotatably connected to the bottom of the rotating cylinder 210. The outer wall of the gear ring 2 307 is meshed with the outer wall of the gear rod 208. By utilizing the characteristic that the cleaning rod 211 regularly cleans the surface of the filter screen 107, a cleaning ring 305 and a limiting wheel 306 are arranged inside the device. When the cleaning rod 211 rotates for cleaning, the cleaning ring 305 and the limiting wheel 306 are The fibers on the top of the filter screen 107 are removed and finally discharged into the interior of the impurity pipe 103 through the impurity inlet 111, wherein the horizontal height of the limiting wheel 306 is higher than the highest point of the impurity inlet 111. When the rotating cylinder 210 rotates, the cleaning rod 211 will pass through the impurity inlet 111 to reach the top of the filter screen 107. During this process, the limiting wheel 306 will contact the inner wall of the impurity pipe 103. As the cleaning rod 211 continues to rotate, the limiting wheel 306 will force the cleaning ring 305 to move along the outer wall of the cleaning rod 211, so that the cleaning ring 305 forms a 9, and with the unidirectional rotation of the rotating cylinder 210, the cleaning rod 211 outside the impurity tube 103 will return to the inside of the impurity tube 103 again, at this time, the limiting wheel 306 loses the restriction of the inner wall of the impurity tube 103, and the spring telescopic rod 304 will release the mechanical power, so that the limiting wheel 306 and the cleaning ring 305 move outward along the outer wall of the cleaning rod 211 to remove the fine fibers stuck on the surface of the cleaning rod 211, so as to avoid the fine fibers sticking to the surface of the cleaning rod 211 after being wetted by water, thereby affecting the subsequent cleaning effect of the cleaning rod 211; in addition, the inclined During use of the surface sliding rod 302, when the gear ring 2 307 rotates counterclockwise, the tooth gap of the gear ring 2 307 will contact the inclined surface of the inclined sliding rod 302, forcing the inclined sliding rod 302 to move downward along the through hole of the L-shaped rod 301, and under the action of the pulling spring 303, enter the next tooth gap of the gear ring 2 307. After the gear ring 2 307 completes the rotation, the vertical surface of the inclined sliding rod 302 will contact the outer surface of the limiting square plate 309, avoiding the thrust generated during the contraction of the spring telescopic rod 304, causing the cleaning rod 211 to rotate clockwise.

[0046] The limiting mechanism 3 also includes a fixed column 308 fixedly connected to the bottom of the rotating cylinder 210, a limited square plate 309 fixedly connected to the side wall of the fixed column 308, a rotating plate 310 rotatably connected to the inner wall of the fixed column 308, and a plurality of pressure blocks 311 fixedly connected to the inner wall of the gear ring 207. By utilizing the regular rotation characteristics of the above-mentioned gear plate 203, a driving block 205 and a U-shaped rod 206 are arranged inside the device. When the gear plate 203 rotates, the driving block 205 will drive the U-shaped rod 206 to slide regularly along the outer wall of the mounting plate 102. At the same time, the U-shaped rod 206 drives the gear rod 208 to move through the pushing block 207. When the gear rod 208 moves horizontally to the left and right, it will present the state shown in Figure 10. When the gear rod 208 moves horizontally to the left, the gear ring 207 will rotate clockwise. At this time, the side of the pressure block 311 contacts the side of the rotating plate 310, and forces the rotating plate 310 to rotate around the outer surface of the fixed column 308. At this time, the gear ring 2 307 will not be able to drive the fixed column 308 and the rotating cylinder 210 to rotate. When the gear rod 208 moves horizontally to the right, the gear ring 2 307 rotates counterclockwise. At this time, the pressure block 311 will contact the other side of the rotating plate 310, and the rotating plate 310 is restricted by the limiting square plate 309. At this time, the pressure block 311 will drive the fixed column 308 and the rotating cylinder 210 to rotate through the rotating plate 310, and the rotating cylinder 210 drives several cleaning rods 211 to clean the surface of the filter screen 107. Through the application of the above components, it is prevented that shorter fibers cannot be hooked by the rotating frame 106, causing the holes of the filter screen 107 to be blocked.

[0047] The filtering method of the filtering device comprises the following steps:

[0048] S1: When using the device, connect the external water pipe to the top of the housing 101, and ensure that the top water flow is restricted by the impurity pipe 103, forming two water flows and contacting the top of the rotating frame 106;

[0049] S2: The impact force of the falling water will act on the top of the rotating frame 106, and force the rotating frame 106 to rotate downward with the outer wall of the rotating column 104 as the center point. At this time, the distance between the support frame 105 and the rotating frame 106 is reduced, and the telescopic spring 110 is compressed and contracted;

[0050] S3: As the rotating frame 106 moves downward, the material-blocking slide 109 will break through the top of the rotating frame 106, so that the rotating frame 106 and the material-blocking slide 109 form a hook. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame 106 and the support frame 105, while the fiber-like long impurities will be affected by the hook formed by the rotating frame 106 and the material-blocking slide 109 and stay on the top of the support frame 105.

[0051] A specific application of this embodiment is: when using the device, the external water pipe is connected to the top of the housing 101, and the top water flow is restricted by the impurity pipe 103 to form two water flows, which contact the top of the rotating frame 106. In this process, the impact force of the fall will act on the top of the rotating frame 106, and force the rotating frame 106 to rotate downward with the outer wall of the rotating column 104 as the center point. At this time, the distance between the support frame 105 and the rotating frame 106 is reduced, and the telescopic spring 110 is compressed and contracted. As the frame 106 moves downward, the material blocking slide 109 will break through the top of the rotating frame 106, so that the rotating frame 106 and the material blocking slide 109 form a hook, presenting the state shown in Figure 4. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame 106 and the support frame 105, and the long fiber impurities will be affected by the hook formed by the rotating frame 106 and the material blocking slide 109, and stay on the top of the support frame 105. After the fiber impurities are mixed with water, a certain viscosity will be generated, and the fiber impurities will adhere to the top of the rotating frame 106.

[0052] The water flow is used to impact the rotating frame 106, and the force exerted on the rotating frame 106 is transmitted to the rotating column 104 through the telescopic spring 110, so that the rotating column 104 rotates, and the rotating column 104 drives the gear plate 203 to rotate through the gear ring 104, and the gear plate 203 drives the cross frame 202 to rotate through the support column 201, wherein the cross frame 202 and the support frame 105 form a cross state, and under the influence of the gear ring 104 and the gear plate 203, the cross frame 202 and the support frame 105 rotate in opposite directions, and the fiber impurities become sticky due to the water, and will adhere to the surface of the rotating frame 106, and at this time, the cross frame 202 passes through the gap of the support frame 105 and The impurities are driven off the surface of the support frame 105; in addition, during the rotation process of the rotating column 104, the supporting frame 105 and the rotating frame 106 will be driven to rotate with the rotating column 104 as the center. When the supporting frame 105 and the rotating frame 106 fall off the water flow, the pressure on the rotating frame 106 is reduced, and the telescopic spring 110 releases the mechanical power, forcing the distance between the supporting frame 105 and the rotating frame 106 to increase. The part of the top of the material blocking slide plate 109 that exceeds the rotating frame 106 will continue to shrink as the rotating frame 106 moves upward under the push of the telescopic spring 110, and finally the excess fibers are scraped off by the cross frame 202, so that the sticky fibers in the equipment are effectively removed, thereby improving the The impurity removal efficiency of the equipment is improved by utilizing the regular rotation characteristics of the gear plate 203. A driving block 205 and a U-shaped rod 206 are arranged inside the equipment. When the gear plate 203 rotates, the driving block 205 will drive the U-shaped rod 206 to slide regularly along the outer wall of the mounting plate 102. At the same time, the U-shaped rod 206 drives the gear rod 208 to move through the push block 207. When the gear rod 208 moves horizontally to the left, it will present the state shown in Figure 10. When the gear rod 208 moves horizontally to the left, the gear ring 2 307 will rotate clockwise. At this time, the side of the pressure block 311 contacts the side of the rotating plate 310, and forces the rotating plate 310 to center on the outer surface of the fixed column 308. The gear ring 307 will generate rotation. At this time, the fixed column 308 and the rotating cylinder 210 will not be able to rotate. When the gear rod 208 moves horizontally to the right, the gear ring 307 will generate counterclockwise rotation. At this time, the pressure block 311 will contact the other side of the rotating plate 310. The rotating plate 310 is restricted by the limiting square plate 309. At this time, the pressure block 311 will drive the fixed column 308 and the rotating cylinder 210 to rotate through the rotating plate 310, and the rotating cylinder 210 drives several cleaning rods 211 to clean the surface of the filter screen 107. Through the application of the above components, it is avoided that shorter fibers cannot be hooked by the rotating frame 106, causing the holes of the filter screen 107 to be blocked.

[0053] Utilizing the characteristic that the cleaning rod 211 cleans the surface of the filter screen 107 regularly, a cleaning ring 305 and a limiting wheel 306 are arranged inside the device. When the cleaning rod 211 rotates for cleaning, the fibers dropped on the top of the filter screen 107 are removed and finally discharged into the interior of the impurity pipe 103 through the impurity inlet 111, wherein the horizontal height of the limiting wheel 306 is higher than the highest point of the impurity inlet 111. When the rotating cylinder 210 rotates, the cleaning rod 211 will pass through the impurity inlet 111 to reach the top of the filter screen 107. During this process, the limiting wheel 306 will contact the inner wall of the impurity pipe 103. As the cleaning rod 211 continues to rotate, the limiting wheel 306 will force the cleaning ring 305 to move along the outer wall of the cleaning rod 211, so that the cleaning ring 305 forms the state shown in FIG. 9. As the rotating cylinder 210 rotates unidirectionally, the cleaning rod 211 outside the impurity pipe 103 will return to the interior of the impurity pipe 103 again. At this time, the limiting wheel 306 06 loses the restriction of the inner wall of the impurity tube 103, and the spring telescopic rod 304 releases the mechanical power, so that the limiting wheel 306 and the cleaning ring 305 move outward along the outer wall of the cleaning rod 211 to remove the fine fibers adhering to the surface of the cleaning rod 211, so as to prevent the fine fibers from adhering to the surface of the cleaning rod 211 after being wetted with water, thereby affecting the subsequent cleaning effect of the cleaning rod 211; in addition, during the use of the inclined sliding rod 302, when the toothed ring 2 307 rotates counterclockwise, the toothed ring The tooth gap of the second gear ring 307 will contact the inclined surface of the inclined sliding rod 302, forcing the inclined sliding rod 302 to move downward along the through hole of the L-shaped rod 301, and under the action of the pulling spring 303, enter the next tooth gap of the gear ring 2 307. After the gear ring 2 307 completes the rotation, the vertical surface of the inclined sliding rod 302 will contact the outer surface of the limiting square plate 309, avoiding the thrust generated during the contraction of the spring telescopic rod 304, causing the cleaning rod 211 to rotate clockwise.

[0054] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A fiber interception and filtration device for papermaking wastewater, comprising a fiber filtration mechanism (1), the fiber filtration mechanism (1) further comprising a housing (101), a mounting plate (102) penetratingly connected to the side wall of the housing (101), an impurity pipe (103) fixedly connected to the inner wall of the housing (101), characterized in that: Also includes: A discharge mechanism (2), the discharge mechanism (2) further comprising a support bracket (209) fixedly connected to the inner wall of the impurity tube (103), a rotating cylinder (210) being rotatably connected to the inner wall of the support bracket (209), and a cleaning rod (211) being fixedly connected to the side wall of the rotating cylinder (210); A limiting mechanism (3), the limiting mechanism (3) comprising an L-shaped rod (301) fixedly connected to the bottom of the support bracket (209), an inclined sliding rod (302) slidably connected to the inner wall of the through hole of the L-shaped rod (301), a pulling spring (303) fixedly connected to the side wall of the inclined sliding rod (302), and an end of the pulling spring (303) away from the inclined sliding rod (302) fixedly connected to the bottom of the L-shaped rod (301).

2. A fiber interception and filtration device for papermaking wastewater according to claim 1, characterized in that: The fiber filtering mechanism (1) further comprises a rotating column (104) rotatably connected to the inner wall of the mounting plate (102), a plurality of support frames (105) being fixedly connected to the side wall of the rotating column (104), a plurality of rotating frames (106) being rotatably connected to the side wall of the rotating column (104), and a filter screen (107) being fixedly connected to the inner wall of the housing (101).

3. A fiber interception and filtration device for papermaking wastewater according to claim 2, characterized in that: The fiber filtering mechanism (1) further comprises a fixing ring (108) fixedly connected to the outer wall of the housing (101); a material blocking slide plate (109) is fixedly connected to the top of the support frame (105); a plurality of telescopic springs (110) are fixedly connected to the top of the support frame (105); and an impurity inlet (111) is provided on the side wall of the impurity pipe (103).

4. A fiber interception and filtration device for papermaking wastewater according to claim 3, characterized in that: The discharge mechanism (2) further comprises a support column (201) rotatably connected to the inner wall of the mounting plate (102); a cross frame (202) is fixedly connected to the side wall of the support column (201); a gear plate (203) is fixedly connected to the side wall of the cross frame (202); a gear ring 1 (204) is fixedly connected to the side wall of the rotating column (104); a driving block (205) is fixedly connected to the side wall of the gear plate (203); a U-shaped rod (206) is slidably connected to the side wall of the mounting plate (102); and an outer wall of the driving block (205) is slidably connected to the inner wall of the U-shaped rod (206).

5. A fiber interception and filtration device for papermaking wastewater according to claim 4, characterized in that: The discharge mechanism (2) further comprises a pushing block (207) fixedly connected to the side wall of the U-shaped rod (206), a gear rod (208) fixedly connected to the side wall of the pushing block (207), and an outer wall of the gear rod (208) is slidably connected to a through hole in the side wall of the housing (101).

6. A fiber interception and filtration device for papermaking wastewater according to claim 5, characterized in that: The limiting mechanism (3) further comprises a spring telescopic rod (304) fixedly connected to the top of the rotating cylinder (210); a cleaning ring (305) is slidably connected to the outer wall of the cleaning rod (211); a limiting wheel (306) is rotatably connected to the top of the cleaning ring (305); a second gear ring (307) is rotatably connected to the bottom of the rotating cylinder (210); and the outer wall of the second gear ring (307) is meshingly connected to the outer wall of the gear rod (208).

7. A fiber interception and filtration device for papermaking wastewater according to claim 6, characterized in that: The limiting mechanism (3) further comprises a fixed column (308) fixedly connected to the bottom of the rotating cylinder (210), a limiting square plate (309) fixedly connected to the side wall of the fixed column (308), a rotating plate (310) rotatably connected to the inner wall of the fixed column (308), and a plurality of pressure blocks (311) fixedly connected to the inner wall of the gear ring 2 (307).

8. A method for treating papermaking wastewater using a fiber retention filter device, using the wastewater filtering device as claimed in claim 7, characterized in that: The following steps are included: S1: When using the device, connect the external water pipe to the top of the housing (101) and ensure that the top water flow is restricted by the impurity pipe (103) to form two water flows that are in contact with the top of the rotating frame (106); S2: The impact force of the falling water will act on the top of the rotating frame (106), and force the rotating frame (106) to rotate downward with the outer wall of the rotating column (104) as the center point. At this time, the distance between the support frame (105) and the rotating frame (106) is reduced, and the telescopic spring (110) is compressed and contracted; S3: The rotating frame (106) moves downward, and the material blocking slide plate (109) breaks through the top of the rotating frame (106), so that the rotating frame (106) and the material blocking slide plate (109) form a hook. In the falling wastewater, the sewage part will penetrate the gap between the rotating frame (106) and the support frame (105), while the fiber-like long impurities will be affected by the hook formed by the rotating frame (106) and the material blocking slide plate (109) and stay on the top of the support frame (105).

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