Printing and dyeing wastewater filtering device

Abstract

The invention relates to a printing and dyeing wastewater filtering device which comprises a recycling box and a filtering assembly connected into the recycling box, the filtering assembly comprises a filtering plate and a mounting box, the mounting box is rotationally connected into the recycling box, the recycling box is connected with a first rotating part, the mounting box communicates with a water inlet pipe, and connecting openings are formed in the two sides of the mounting box correspondingly; one filter plate is embedded into one connecting opening, and the filter plates are detachably connected into the connecting openings through locking assemblies. When the filter plate on one side needs to be replaced, the first rotating part drives the mounting box to rotate, so that the filter plate to be replaced is positioned at the top of the mounting box, and the printing and dyeing wastewater to be filtered enters the recycling box through the other filter plate, so that an operator can conveniently replace the filter plates, and the influence on the filtering efficiency when the filter plates are replaced is reduced.

Description

Technical Field

[0001] The present application relates to the field of printing and dyeing wastewater treatment equipment, and in particular to a filtering device for printing and dyeing wastewater. Background Art

[0002] The printing and dyeing industry is a typical high-water-consuming industry, which consumes a large amount of softened water for process use every year. The sources and pollutant composition of printing and dyeing wastewater are very complex, with characteristics such as large changes in water quality, high organic content, and high chroma (mainly colored dyes). Direct discharge brings great harm to human health and the living environment, and also causes waste of water resources.

[0003] A Chinese patent with authorization announcement number CN114768359A discloses an efficient and energy-saving printing and dyeing wastewater filter tank, which belongs to the technical field of textile wastewater filtration equipment; it includes a water tank, a water outlet pipe is arranged on the front of the water tank, a water inlet is opened on the top of the rear side of the water tank, the water outlet of the water inlet is plugged with an obliquely arranged water inlet channel, a reciprocating power device is arranged at one end of the water inlet channel plugged into the water tank, and a filter bucket is arranged on the top of the inner cavity of the water tank; the invention is provided with a circulation furnace on one side of the water tank, which is embedded with multiple annular heating pipes inside, and the extension pipe connected under the heating pipe extends to the inside of the circulation pipe, so that the temperature of the hot water transported by the circulating water pump inside can be absorbed and conducted, so as to maintain the temperature inside the entire circulation furnace, and cooperate with the hanging device on the top to load the material for drying treatment, and the pipe length of the entire device is short, which will not cause excessive heat loss, thereby making the thermal energy use efficiency better.

[0004] With respect to the above-mentioned related technologies, when the filter bucket needs to be replaced, the water inlet needs to stop inputting sewage into the water inlet channel, thereby affecting the filtering efficiency of the sewage. Summary of the invention

[0005] In order to ensure that the water inlet pipe does not need to stop supplying water to the box when replacing the filter plate and reduce the impact of replacing the filter plate on the filtration efficiency, the present application provides a filtering device for printing and dyeing wastewater.

[0006] The present application provides a printing and dyeing wastewater filtering device adopts the following technical solution: A filtering device for printing and dyeing wastewater comprises a recovery box and a filtering assembly connected to the recovery box, wherein the recovery box is provided with an opening at the top, the filtering assembly comprises a filter plate and an installation box, the installation box is rotatably connected to the side wall of the recovery box at both ends along the width direction, the recovery box is connected to a first rotating member, the first rotating member is used to drive the installation box to rotate, the installation box is connected to a water inlet pipe at one end along the width direction, the water inlet pipe is used to input printing and dyeing wastewater into the installation box, connection ports are provided on both sides of the installation box, one of the filter plates is embedded in one of the connection ports, and the filter plate is detachably connected to the connection port through a locking assembly.

[0007] By adopting the above technical solution, when the printing and dyeing wastewater is filtered, the water inlet pipe inputs the printing and dyeing wastewater into the installation box, and the printing and dyeing wastewater passes through the filter plate on one side, thereby reducing impurities in the printing and dyeing wastewater. The filtered printing and dyeing wastewater is stored in the recovery box. When the filter plate on one side needs to be replaced, the first rotating member drives the installation box to rotate, so that the filter plate to be replaced is located at the top of the installation box, and the printing and dyeing wastewater to be filtered enters the recovery box through the other filter plate, thereby facilitating the operator to replace the filter plate and reducing the impact on the filtration efficiency when replacing the filter plate.

[0008] Optionally, the length direction of the recovery box is consistent with the length direction of the installation box, the length direction of the connecting port is consistent with the length direction of the installation box, the length direction of the filter plate is consistent with the length direction of the installation box, the filter plate is provided with installation grooves on both sides along its length direction, the length direction of the installation groove is consistent with the length direction of the filter plate, the locking assembly includes a locking block, a first spring, the length direction of the first spring is consistent with the length direction of the filter plate, one end of the first spring is connected to the inner wall of the installation groove, the other end of the first spring is connected to the locking block, the locking block is slidably connected to the installation groove along the length direction of the filter plate, the connecting port is provided with locking holes on the inner walls on both sides along its length direction, the locking block passes through the locking holes along the length direction of the filter plate, one locking block corresponds to one locking hole, and the recovery box is also connected to a pushing assembly, which is used to push the locking block away from the locking hole.

[0009] By adopting the above technical solution, when installing the filter plate, the filter plate is embedded in the connecting port. When the locking block is close to the locking hole, the first spring drives the locking block to slide along the length direction of the filter plate and connect to the installation groove, and makes the locking block pass through the locking hole along the length direction of the filter plate, so that the filter plate is stably connected to the connecting port.

[0010] Optionally, the pushing component is connected to the side walls of the recycling box on both sides along the length direction of the recycling box, the pushing component includes a pushing rod and a connecting plate, the side walls of the recycling box on both sides along its length direction are provided with sliding holes, the sliding holes pass through the side walls of the recycling box along the length direction of the recycling box, the length direction of the pushing rod is consistent with the length direction of the recycling box, the pushing rod passes through and is slidably connected in the sliding hole and the locking hole along its length direction, one end of the pushing rod along its length direction is in contact with the locking block located at the top of the installation box, one pushing rod corresponds to one sliding hole, and the connecting plate is connected to the other end of the pushing rod.

[0011] By adopting the above technical solution, when removing the filter plate, the connecting plate is pushed along the length direction of the recovery box, thereby driving the pushing rod to slide along the length direction of the filter plate and connect to the sliding hole and the locking hole, thereby pushing the locking block away from the locking hole, thereby facilitating the removal of the filter plate from the connecting port.

[0012] Optionally, the two connecting ports are arranged on the side walls on opposite sides of the installation box, and the filter plates are each provided with a collecting assembly, which is used to collect impurities on the surface of the filter plate on the corresponding side, and the two collecting assemblies are respectively located at both ends of the installation box along the length direction of the installation box, the collecting assembly includes a collecting box and a guide plate, the length direction of the collecting box is consistent with the width direction of the installation box, an input port is opened on the side of the collection box close to the filter plate, the collection box is connected to the inner wall of the installation box on one side along the length direction of the installation box, the guide plate is connected to the other side of the collection box, the length direction of the guide plate is consistent with the length direction of the collection box, one end of the guide plate along its width direction is connected to the collection box, and the other end of the guide plate is inclined toward the side close to the filter plate, and the guide plate and the filter plate are spaced to form a first port, and when the filter plate is located at the top of the installation box, the input port is located at the top of the collection box.

[0013] By adopting the above technical solution, when replacing the filter plate, the first rotating member drives the installation box to rotate. During the rotation of the installation box, the filter plate is tilted, and some impurities on the surface of the filter plate move along the tilted filter plate and approach the corresponding collection box. When the rotation of the installation box is completed, the impurities close to the collection box fall into the collection box due to gravity, thereby facilitating the cleaning of impurities in the installation box.

[0014] Optionally, the filter plates are each provided with a scraper, the length direction of the scraper is consistent with the width direction of the installation box, the two ends of the scraper along its length direction are respectively in contact with the inner walls on both sides corresponding to the installation box, and one end of the scraper along its width direction is in contact with the side of the filter plate close to the installation box, and the scraper is each provided with a driving assembly, and the driving assembly is used to drive the scraper to move along the length direction of the filter plate, the scraper is slidably connected to one side of the filter plate and the first port along the length direction of the filter plate, the scraper is connected to a first flexible layer on the side away from the filter plate, the first flexible layer is in contact with the side of the guide plate away from the collection box, and when the installation box rotates, the guide plate is in contact with the first flexible layer.

[0015] By adopting the above technical solution, when replacing the filter plate, the driving assembly drives the scraper to move along the length direction of the filter plate, so that the scraper pushes the impurities on the surface of the filter plate close to the collection box, and the first flexible layer contacts the guide plate, so that the first opening is closed, so as to avoid as much as possible that when the collection box is immersed in printing and dyeing wastewater, the impurities close to the collection box are affected by the buoyancy of the printing and dyeing wastewater and move away from the collection box, thereby making the collection of impurities more convenient.

[0016] Optionally, the installation box is provided with movable grooves on the inner walls on both sides along the width direction, one movable groove corresponds to a driving component, the length direction of the movable groove is consistent with the length direction of the installation box, the driving component includes a screw rod, a slider, and a second rotating member, the length direction of the screw rod is consistent with the length direction of the installation box, the screw rod is rotatably connected to the movable groove, the second rotating member is connected to the installation box, the second rotating member is used to drive the screw rod to rotate, the slider is threadedly sleeved on the screw rod, the slider is slidably connected to the movable groove along the length direction of the installation box, and the scraper is connected to the slider at one end along its length direction.

[0017] By adopting the above technical solution, the second rotating member drives the screw rod to rotate, thereby driving the slider to slide along the length direction of the filter plate and connect to the moving groove, so that the scraper moves along the length direction of the filter plate.

[0018] Optionally, a guide surface is provided on the side of the slider close to the collection box, and the guide surface is inclined toward the side away from the collection box at one end close to the filter plate, and the guide surface is connected to a push plate, and the push plate contacts the inner wall of the movable groove on the side close to the filter plate at one end close to the filter plate, and the push plate contacts the inner wall of the movable groove on the corresponding side along the length direction of the installation box.

[0019] By adopting the above technical solution and adding a guide surface, it is possible to avoid a large amount of impurities accumulating on one side of the slider when the slider moves along the length direction of the filter plate. An additional push plate can be added to avoid impurities from entering the gap between the slider and the moving groove.

[0020] Optionally, a plurality of first circulation channels are provided in the side wall of the collecting box, and the first circulation channels are spaced in sequence along the length direction of the collecting box, a plurality of first water outlet holes are opened in the first circulation channel, and the first water outlet holes are located on the inner wall of the collecting box away from the input port, the first water outlet holes connect the collecting box with the first circulation channel, a plurality of second water outlet holes are opened on the inner wall of the first circulation channel, the second water outlet holes connect the collecting box with the first circulation channel, the second water outlet holes are located on the inner walls on both sides of the collecting box along the width direction of the collecting box, a third water outlet hole is opened on the outer wall of the collecting box away from the filter plate, the third water outlet hole connects the installation box with the first circulation channel, the first circulation channel is connected with the second circulation channel, and the second circulation channel connects two adjacent first circulation channels.

[0021] By adopting the above technical solution, when impurities fall into the collecting box, the printing and dyeing wastewater that enters the collecting box along with the impurities is discharged from the collecting box through the first water outlet hole and the second water outlet hole, thereby facilitating the collection of the impurities.

[0022] Optionally, the water inlet pipe is connected to a water supply pipe at one end away from the installation box, and the water supply pipe is rotatably sleeved on one end of the water inlet pipe. The water supply pipe is connected to two first pipes at one end away from the water inlet pipe, one end of the two first pipes are connected to the water supply pipe, the other ends of the two first pipes are connected to a second pipe, the two first pipes are connected to the second pipe, a filter is connected inside the first pipe, one end of the first pipe is detachably connected to the water supply pipe, the other end of the first pipe is detachably connected to the second pipe, the second pipe is connected to a first valve, and the first valve is used to control the opening and closing of the second pipe and the two first pipes.

[0023] By adopting the above technical solution, a filter screen is added to perform preliminary filtration on the printing and dyeing wastewater, thereby reducing impurities adhering to the surface of the filter plate. The first tube is detachably connected to the first tube and the water pipe, thereby facilitating the cleaning and replacement of the filter screen. When one first tube is disassembled, the first valve closes the first tube to be disassembled and opens another first tube, thereby reducing the impact of the disassembly of the first tube on the filtration efficiency.

[0024] Optionally, a connecting rod is threadedly connected to one side of the filter plate close to the collection box, the length direction of the connecting rod is consistent with the vertical direction, and the other end of the connecting rod is threadedly connected to the collection box.

[0025] By adopting the above technical solution and adding a connecting rod, when the filter plate is disassembled, the collecting box follows the filter plate away from the mounting box, thereby facilitating the operator to clean the impurities.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When filtering printing and dyeing wastewater, the water inlet pipe inputs printing and dyeing wastewater into the installation box, and the printing and dyeing wastewater passes through the filter plate on one side to reduce impurities in the printing and dyeing wastewater. The filtered printing and dyeing wastewater is stored in the recovery box. When the filter plate on one side needs to be replaced, the first rotating member drives the installation box to rotate, so that the filter plate to be replaced is located at the top of the installation box, and the printing and dyeing wastewater to be filtered enters the recovery box through another filter plate, so that it is convenient for operators to replace the filter plate and reduce the impact on the filtration efficiency when replacing the filter plate; 2. When installing the filter plate, insert the filter plate into the connection port. When the locking block approaches the locking hole, the first spring drives the locking block to slide along the length direction of the filter plate and connect to the installation groove, and makes the locking block pass through the locking hole along the length direction of the filter plate, so that the filter plate is stably connected to the connection port; 3. When replacing the filter plate, the driving assembly drives the scraper to move along the length direction of the filter plate, so that the scraper pushes the impurities on the surface of the filter plate close to the collection box, and the first flexible layer contacts the guide plate, so that the first port is closed, so as to avoid the impurities close to the collection box being affected by the buoyancy of the printing and dyeing wastewater and moving away from the collection box when the collection box is immersed in the printing and dyeing wastewater, thereby making the collection of impurities more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural diagram of this embodiment.

[0028] Figure 2 It is a top view of this embodiment.

[0029] Figure 3 This embodiment Figure 2 Sectional view along AA direction.

[0030] Figure 4 This embodiment Figure 2 Cross-sectional view along the BB axis.

[0031] Figure 5 It is a three-dimensional structural diagram of the collection component in this embodiment.

[0032] Figure 6 This embodiment Figure 2 Sectional view along CC direction.

[0033] Figure 7 is a top view of the collection assembly in this embodiment.

[0034] Figure 8 This embodiment Figure 7 Cross-sectional view along DD direction.

[0035] Fig. 9 This embodiment Figure 7 Cross-sectional view along the EE axis.

[0036] Fig.10 This embodiment Figure 4 Enlarged view of part F.

[0037] Fig.11 This embodiment Figure 2 Cross-sectional view of GG.

[0038] Fig.12 This embodiment Figure 2 Cross-sectional view of HH.

[0039] Fig.13 This embodiment Fig.12 Enlarged view of part I.

[0040] Description of reference numerals: 100, recovery box; 110, water inlet pipe; 111, water delivery pipe; 112, first pipe; 113, filter screen; 114, second pipe; 115, first valve; 120, first rotating member; 121, first motor; 130, water outlet pipe; 140, sliding hole; 200, filter assembly; 210, installation box; 211, connection port; 212, locking hole; 213, moving groove; 220, filter plate; 221, handle; 222, support plate; 223, installation groove; 224, scraper; 225, first flexible layer; 226, second flexible layer; 230, cavity; 300, locking assembly; 310, locking block; 320, first spring; 400, pushing assembly; 410, pushing rod; 4 20. Connecting plate; 421. Second spring; 500. Collecting assembly; 510. Collecting box; 511. Input port; 512. Connecting rod; 513. First circulation channel; 514. First water outlet; 515. Second water outlet; 516. Third water outlet; 517. Second circulation channel; 520. Guide plate; 521. First port; 530. Water collecting bucket; 531. Drain port; 532. Connecting pipe; 600. Driving assembly; 610. Screw rod; 620. Sliding block; 621. Mounting plate; 622. Guide surface; 623. Push plate; 624. Torsion spring; 625. Third flexible layer; 630. Second rotating member; 631. First gear; 632. Second gear; 633. Second motor; 634. Support rod. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-13 This application is described in further detail.

[0042] The present application embodiment discloses a filtering device for printing and dyeing wastewater. Figure 1 and Figure 2A filtering device for printing and dyeing wastewater comprises a recovery box 100 and a filtering assembly 200. The recovery box 100 is provided with an opening at the top, and one end of the recovery box 100 along its width direction is connected to a water inlet pipe 110, and the other end of the recovery box 100 is connected to a first rotating member 120. The filtering assembly 200 comprises an installation box 210 and two filter plates 220, the length direction of the installation box 210 is consistent with the length direction of the recovery box 100, and the two ends of the installation box 210 along its width direction are connected to the side walls of the corresponding sides of the recovery box 100. The side walls on the opposite sides of the installation box 210 are provided with connecting ports 211, the length direction of the connecting port 211 is consistent with the length direction of the installation box 210, the length direction of the filter plate 220 is consistent with the length direction of the installation box 210, one filter plate 220 is detachably connected to one connecting port 211, and when the printing and dyeing wastewater is filtered, the filter plate 220 is arranged horizontally. The first rotating member 120 is used to drive the installation box 210 to rotate. The first rotating member 120 is a first motor 121. The first motor 121 is a servo motor, and the output shaft of the first motor 121 is connected to one end of the installation box 210 along the width direction of the installation box 210. The water inlet pipe 110 passes through the side wall of one side of the recovery box 100 and the side wall of one side of the installation box 210 along the width direction of the recovery box 100, and the water inlet pipe 110 is connected to the installation box 210. The bottom of the recovery box 100 is connected with a water outlet pipe 130, and the water outlet pipe 130 is used to guide the filtered printing and dyeing wastewater into the next treatment process. When replacing the filter plate 220, the first motor 121 drives the installation box 210 to rotate, so that the filter plate 220 to be replaced is located at the top of the installation box 210. At the same time, the printing and dyeing wastewater enters the recovery box 100 through another filter plate 220, so as to facilitate the replacement of the filter plate 220, thereby reducing the impact on the filtration efficiency of the printing and dyeing wastewater when the filter plate 220 is replaced.

[0043] Reference Figure 1 and Figure 3 The length direction of the water inlet pipe 110 is consistent with the width direction of the installation box 210. One end of the water inlet pipe 110 is connected to the installation box 210. The other end of the water inlet pipe 110 is connected to the water delivery pipe 111, and one end of the water delivery pipe 111 is rotatably sleeved on the water inlet pipe 110. The other end of the water delivery pipe 111 is connected to two first pipes 112. One end of the two first pipes 112 is connected to the water delivery pipe 111. The other end of the first pipe 112 is connected to the second pipe 114, and the two first pipes 112 are connected to the second pipe 114. The second pipe 114 is used to input printing and dyeing wastewater into the first pipe 112. One end of the first pipe 112 is detachably connected to the water delivery pipe 111 through a flange, and the other end of the first pipe 112 is detachably connected to the second pipe 114 through a flange. The first tubes 112 are connected with filter screens 113 , the second tubes 114 are connected with first valves 115 , the first valves 115 are three-way valves, and the first valves 115 are used to control the opening and closing of the second tubes 114 and the two first tubes 112 .

[0044] The first pipe 112 and the filter screen 113 are added to perform preliminary filtration on the printing and dyeing wastewater, thereby reducing impurities accumulated in the installation box 210 .

[0045] Reference Figure 1 and Figure 4 The filter plate 220 is fixedly connected with a handle 221 on the side away from the installation box 210, and the filter plate 220 is connected with a locking assembly 300, which is used to lock the filter plate 220 in the connection port 211. The filter plate 220 is connected with support plates 222 on both sides along its width direction, and the length direction of the support plate 222 is consistent with the length direction of the filter plate 220, and the support plate 222 is connected to the end of the filter plate 220 away from the installation box 210, and the side of the support plate 222 close to the installation box 210 is in contact with the outer wall of the side of the installation box 210 with the connection port 211. A sealing ring is connected in the connection port 211, and the sealing ring is arranged in a square ring shape, and the sealing ring is in contact with the peripheral side of the filter plate 220.

[0046] Reference Figure 4 The filter plate 220 is provided with mounting grooves 223 on both sides along the length direction thereof, and the length direction of the mounting grooves 223 is consistent with the length direction of the filter plate 220. The locking assembly 300 includes a locking block 310 connected to the mounting groove 223 and a first spring 320, and the length direction of the first spring 320 is consistent with the length direction of the filter plate 220. One end of the first spring 320 is connected to the inner wall of the mounting groove 223 along the length direction thereof, and the other end of the first spring 320 is connected to the locking block 310, and the locking block 310 is slidably connected to the mounting groove 223 along the length direction of the filter plate 220. The inner walls on both sides of the connecting port 211 along the length direction thereof are provided with locking holes 212 for the locking blocks 310 to pass through, and one locking block 310 corresponds to one locking hole 212, and the locking hole 212 passes through the side wall of the connecting port 211 along the length direction of the filter plate 220, and the locking block 310 passes through the locking hole 212 along the length direction of the filter plate 220.

[0047] Refer to 2 and Figure 4The recycling box 100 is also connected to a pushing assembly 400. Two pushing assemblies 400 are provided, and the two pushing assemblies 400 are respectively connected to the side walls of the recycling box 100 along the length direction of the recycling box 100, and the two pushing rods 410 are respectively used to push the locking blocks 310 located on both sides of the top of the installation box 210 away from the locking holes 212. The pushing assembly 400 includes a pushing rod 410 and a connecting plate 420. The side walls on both sides of the recycling box 100 along its length direction are provided with sliding holes 140 for the pushing rod 410 to pass through. One pushing rod 410 corresponds to one sliding hole 140. The sliding hole 140 passes through the side wall of the recycling box 100 on the corresponding side along the length direction of the recycling box 100. The length direction of the pushing rod 410 is consistent with the length direction of the recycling box 100. The pushing rod 410 passes through and is slidably connected in the sliding hole 140 along its length direction. One end of the pushing rod 410 is slidably connected in the locking hole 212 along its length direction and contacts the locking block 310. The pushing rod 410 is used to push the locking block 310 located at the top of the installation box 210 away from the locking hole 212. The length direction of the connecting plate 420 is consistent with the width direction of the recycling box 100, and the connecting plate 420 is connected to the end of the pushing rod 410 away from the locking block 310. One connecting plate 420 corresponds to one pushing rod 410. A second spring 421 is connected to the side of the connecting plate 420 close to the recycling box 100. The length direction of the second spring 421 is consistent with the length direction of the recycling box 100. The other end of the second spring 421 is connected to the side wall of the recycling box 100. When the second spring 421 is in a relaxed state, the locking block 310 is not in contact with the pushing rod 410.

[0048] When installing the filter plate 220, the filter plate 220 is embedded in the connection port 211, and the support plate 222 contacts the side wall of the installation box 210. When the locking block 310 approaches the locking hole 212, the first spring 320 drives the locking block 310 to pass through the locking hole 212, so that the filter plate 220 is stably connected to the connection port 211. When removing the filter plate 220, the push rod 410 is pushed along the length direction of the recovery box 100, so that the push rod 410 pushes the locking block 310 away from the locking hole 212, so that the filter plate 220 is easily taken out of the connection port 211.

[0049] Reference Figure 4 and Figure 5 , the filter plates 220 are each provided with a collecting assembly 500, the collecting assembly 500 is used to collect impurities on the surface of the filter plates 220 on the corresponding side, and the two collecting assemblies 500 are respectively located at both ends of the installation box 210 along the length direction of the installation box 210. The collecting assembly 500 includes a collecting box 510 and a guide plate 520. Consistent with the width direction of the installation box 210, an input port 511 is provided on one side of the collection box 510 close to the filter plate 220, and the length direction of the input port 511 is consistent with the length direction of the collection box 510. The guide plate 520 is connected to one end of the collection box 510 close to the filter plate 220, and one side of the collection box 510 along its width direction is connected to the inner wall of the installation box 210. The guide plate 520 is connected to the other side of the collection box 510. The length direction of the guide plate 520 is consistent with the length direction of the collection box 510. One end of the guide plate 520 along its width direction is connected to the collection box 510, and the other end of the guide plate 520 is inclined towards the side close to the filter plate 220. And a first opening 521 is formed at an interval between the end of the guide plate 520 away from the collection box 510 and the filter plate 220.

[0050] Refer to Figure 6 , the collection box 510 is detachably connected to the filter plate 220 through a connecting rod 512. When the printing and dyeing wastewater is filtered, the length direction of the connecting rod 512 is consistent with the vertical direction. Both ends of the connecting rod 512 in the length direction are threadedly connected to the filter plate 220 and the collection box 510 respectively.

[0051] When replacing the filter plate 220, the installation box 210 is rotated to make the filter plate 220 inclined, and the impurities move and approach the collection box 510. When the installation box 210 is horizontally arranged, the impurities fall into the collection box 510, so as to facilitate the collection of the impurities.

[0052] Refer to Figure 7 and Figure 8 , a plurality of first flow channels 513 are provided inside the side wall of the collection box 510. The first flow channels 513 are arranged in a U-shape. The first flow channels 513 are sequentially and spacedly distributed along the length direction of the collection box 510. A plurality of first water outlet holes 514 are formed on the inner wall of the first flow channels 513. The plurality of first water outlet holes 514 are sequentially and spacedly distributed along the width direction of the collection box 510 on the first flow channels 513, and the first water outlet holes 514 are located on the inner wall of the collection box 510 on the side away from the input port 511. The first water outlet holes 514 communicate the collection box 510 with the first flow channels 513.

[0053] Refer to Figure 8 and Fig. 9A plurality of second water outlet holes 515 are provided on the inner wall of the first circulation channel 513. The plurality of second water outlet holes 515 are sequentially spaced and distributed in the first circulation channel 513 along the length direction of the connecting rod 512. The second water outlet holes 515 connect the collection box 510 with the first circulation channel 513. The second water outlet holes 515 are located on the inner walls of the collection box 510 on both sides along the width direction of the collection box 510. A third water outlet hole 516 is provided on the outer wall of the collection box 510 away from the filter plate 220. The depth direction of the third water outlet hole 516 is consistent with the length direction of the connecting rod 512. The third water outlet hole 516 connects the installation box 210 with the first circulation channel 513. The first circulation channels 513 are all connected with the second circulation channels 517. The second circulation channels 517 connect two adjacent first circulation channels 513.

[0054] Reference Figure 5 A water collecting bucket 530 is connected to the side of the collecting box 510 away from the filter plate 220. The length direction of the water collecting bucket 530 is consistent with the length direction of the collecting box 510. A drain outlet 531 is opened at the end of the water collecting bucket 530 away from the collecting box 510. The water collecting bucket 530 is also connected to a connecting pipe 532, which is connected to the drain outlet 531.

[0055] After the impurities fall into the collection box 510, the printing and dyeing wastewater that follows the impurities into the collection box 510 enters the first circulation channel 513 through the first water outlet 514 and the second water outlet 515, and is discharged from the first circulation channel 513 through the third water outlet 516. When the collection box 510 is taken out of the installation box 210 and the collection box 510 is cleaned, the connecting pipe 532 is connected to a water pipe, and the water pipe is connected to an opening and closing valve. The water pipe inputs cleaning liquid into the water collecting bucket 530, and the cleaning liquid enters the first circulation channel 513 through the third water outlet 516, and enters the first water outlet 514 and the second water outlet 515 through the second circulation channel 517. The flow direction of the cleaning liquid is opposite to the flow direction of the printing and dyeing wastewater, so that the first circulation channel 513, the second circulation channel 517, the first water outlet 514, the second water outlet 515, and the third water outlet 516 are reversely cleaned.

[0056] Reference Figure 4 and Fig.10, the filter plates 220 are each provided with a scraper 224, which is connected to the installation box 210, the length direction of the scraper 224 is consistent with the width direction of the installation box 210, one end of the scraper 224 along its width direction contacts the filter plate 220, and the other end of the scraper 224 is inclined toward the side away from the collection box 510. The scraper 224 is connected to a driving assembly 600 along one end of its length direction, and the other end of the scraper 224 contacts the inner wall of the installation box 210. The driving assembly 600 is used to drive the scraper 224 to slide along the length direction of the installation box 210 and connect to the side of the filter plate 220 close to the installation box 210, and the scraper 224 is slidably connected to the first port 521 along the length direction of the installation box 210. The scraper 224 is connected to a first flexible layer 225 along its width direction and away from the filter plate 220, the length direction of the first flexible layer 225 is consistent with the length direction of the scraper 224, and the first flexible layer 225 contacts the side of the guide plate 520 away from the collection box 510. When the installation box 210 rotates, the guide plate 520 contacts the first flexible layer 225 and drives the first port 521 to close. The other side of the scraper 224 is connected to the second flexible layer 226, the length direction of the second flexible layer 226 is consistent with the length direction of the scraper 224, the second flexible layer 226 contacts the filter plate 220, and the first flexible layer 225 and the second flexible layer 226 are both made of rubber. Reference Figure 4 and Fig.10 The installation box 210 is provided with movable grooves 213 on both sides of the inner wall along the width direction thereof, one movable groove 213 corresponds to one driving assembly 600, and the length direction of the movable groove 213 is consistent with the length direction of the installation box 210. The driving assembly 600 includes a screw rod 610, a slider 620, and a second rotating member 630 connected to the installation box 210, the length direction of the screw rod 610 is consistent with the length direction of the installation box 210, both ends of the screw rod 610 are rotatably connected to the inner wall of the movable groove 213, the slider 620 is threadedly sleeved on the screw rod 610, and the slider 620 is slidably connected to the movable groove 213 along the length direction of the installation box 210, and the slider 620 is connected to the mounting plate 621, and the length direction of the mounting plate 621 is consistent with the length direction of the scraper 224, and the mounting plate 621 is detachably connected to the scraper 224 by bolts, and the bolts pass through the mounting plate 621 and are threadedly connected to the scraper 224, and one end of the scraper 224 contacts the slider 620.

[0057] Reference Figure 4 and Fig.11, cavities 230 are provided in the side walls on both sides of the installation box 210 along its length direction, one cavity 230 corresponds to a second rotating member 630, the cavity 230 is located at one end of the moving groove 213 along the length direction of the moving groove 213, the second rotating member 630 includes a first gear 631, a second gear 632, and a second motor 633, the screw rod 610 passes through the inner wall of the moving groove 213 along one end of its length direction and is arranged in the cavity 230, the first gear 631 is sleeved on the end of the screw rod 610 located in the cavity 230, and a support rod 634 is rotatably connected in the cavity 230, the length direction of the support rod 634 is consistent with the length direction of the connecting rod 512, the second gear 632 is sleeved on one end of the support rod 634, the second motor 633 is connected to the side of the installation box 210 with the connecting port 211, and the output shaft of the second motor 633 passes through the inner wall of the cavity 230 along the length direction of the support rod 634 and is connected to the other end of the support rod 634. The second gear 632 is meshed with the first gear 631 , and both the first gear 631 and the second gear 632 are configured as bevel gears.

[0058] Reference Fig.10 and Fig.12 When the scraper 224 is not in use, the slider 620 contacts the inner wall of the moving groove 213 along the length direction of the installation box 210 and away from the collection box 510. The slider 620 is provided with a guide surface 622 on the side close to the collection box 510, and the guide surface 622 is inclined toward the side away from the collection box 510 at one end close to the filter plate 220. The slider 620 is provided with a push plate 623 rotatably connected to one side of the guide surface 622, and the length direction of the push plate 623 is consistent with the width direction of the installation box 210.

[0059] Reference Fig.10 and Fig.13 The slider 620 is provided with a guide surface 622 on one side of which a torsion spring 624 is connected, and the other end of the torsion spring 624 is connected to a push plate 623, and the other end of the push plate 623 is tilted toward the side close to the collection box 510, and the push plate 623 is away from the slider 620 and contacts the inner wall of the moving groove 213 on the side close to the filter plate 220, and the push plate 623 contacts the inner wall of the corresponding side of the moving groove 213 along the length direction of the installation box 210. The push plate 623 is connected to the end away from the slider 620, and the length direction of the third flexible layer 625 is consistent with the length direction of the push plate 623, and the third flexible layer 625 is used to contact the inner wall of the moving groove 213, and the third flexible layer 625 is made of rubber.

[0060] The second motor 633 drives the second gear 632 to rotate, the first gear 631 rotates following the second gear 632, and the first gear 631 drives the screw rod 610 to rotate, so that the slider 620 and the scraper 224 move along the length direction of the installation box 210, so that the scraper 224 pushes the impurities on the surface of the filter plate 220 close to the collection box 510. When the first flexible layer 225 contacts the guide plate 520, the installation box 210 rotates, so that the filter plate 220 to be replaced is located at the top of the installation box 210, and the impurities fall into the collection box 510, so as to facilitate the collection of impurities. The addition of the guide surface 622 and the push plate 623 can reduce the accumulation of impurities in the moving groove 213.

[0061] The implementation principle of a filtering device for printing and dyeing wastewater in an embodiment of the present application is as follows: when the filter plate 220 located at the bottom of the installation box 210 needs to be replaced, the second motor 633 drives the second gear 632 to rotate, the first gear 631 rotates following the second gear 632, the first gear 631 drives the screw rod 610 to rotate, the slider 620 and the scraper 224 move along the length direction of the installation box 210, the scraper 224 pushes the impurities on the surface of the filter plate 220 to approach the collection box 510, and when the first flexible layer 225 is pressed against the guide plate 520 and the first port 521 is closed, the first motor 121 drives the installation box 210 to rotate, so that the filter plate 220 to be replaced is located at the top of the installation box 210, and the impurities fall into the collection box 510 due to gravity.

[0062] When removing the filter plate 220, the scraper 224 moves and moves away from the guide plate 520, pushing the push rod 410 along the length direction of the installation box 210, and the push rod 410 pushes the locking block 310 away from the locking hole 212, so as to facilitate the removal of the filter plate 220 and the collection box 510 from the installation box 210. When installing the filter plate 220, the filter plate 220 is embedded in the connecting port 211, and the locking block 310 is close to the locking hole 212. The first spring 320 drives the locking block 310 to pass through the locking hole 212, so that the filter plate 220 is stably connected to the connecting port 211, so as to facilitate the replacement of the filter plate 220 and reduce the influence of the replacement of the filter plate 220 on the filtration efficiency of printing and dyeing wastewater.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A filtering device for printing and dyeing wastewater, comprising a recovery box (100) and a filtering assembly (200) connected to the recovery box (100), wherein the recovery box (100) is provided with an opening at the top, and is characterized in that: The filter assembly (200) comprises a filter plate (220) and an installation box (210); the installation box (210) is rotatably connected to the side wall of the recovery box (100) at both ends along the width direction; the recovery box (100) is connected to a first rotating member (120); the first rotating member (120) is used to drive the installation box (210) to rotate; one end of the installation box (210) along the width direction is connected to a water inlet pipe (110); the water inlet pipe (110) is used to input printing and dyeing wastewater into the installation box (210); both sides of the installation box (210) are provided with connection ports (211); one filter plate (220) is embedded in one connection port (211); and the filter plate (220) is detachably connected to the connection port (211) via a locking assembly (300).

2. A filtering device for printing and dyeing wastewater according to claim 1, characterized in that: The length direction of the recovery box (100) is consistent with the length direction of the installation box (210); the length direction of the connection port (211) is consistent with the length direction of the installation box (210); the length direction of the filter plate (220) is consistent with the length direction of the installation box (210); the filter plate (220) is provided with installation grooves (223) on both sides along its length direction; the length direction of the installation grooves (223) is consistent with the length direction of the filter plate (220); the locking assembly (300) comprises a locking block (310) and a first spring (320); the length direction of the first spring (320) is consistent with the length direction of the filter plate (220); one end of the first spring (320) is The first spring (320) is connected to the inner wall of the installation groove (223); the other end of the first spring (320) is connected to the locking block (310); the locking block (310) is slidably connected to the installation groove (223) along the length direction of the filter plate (220); locking holes (212) are provided on the inner walls on both sides of the connection port (211) along the length direction; the locking block (310) passes through the locking holes (212) along the length direction of the filter plate (220); one locking block (310) corresponds to one locking hole (212); and the recovery box (100) is further connected to a pushing component (400); the pushing component (400) is used to push the locking block (310) away from the locking hole (212).

3. A filtering device for printing and dyeing wastewater according to claim 2, characterized in that: The pushing assembly (400) is connected to the side walls of the recycling box (100) on both sides along the length direction of the recycling box (100). The pushing assembly (400) comprises a pushing rod (410) and a connecting plate (420). The side walls of the recycling box (100) on both sides along the length direction thereof are provided with sliding holes (140). The sliding holes (140) pass through the side walls of the recycling box (100) along the length direction of the recycling box (100). The length direction of the pushing rod (410) is consistent with the length direction of the recycling box (100). The pushing rod (410) passes through and is slidably connected to the sliding hole (140) and the locking hole (212) along its length direction. One end of the pushing rod (410) along its length direction contacts a locking block (310) located at the top of the installation box (210). One pushing rod (410) corresponds to one sliding hole (140). The connecting plate (420) is connected to the other end of the pushing rod (410).

4. The filtering device for printing and dyeing wastewater according to claim 1, characterized in that: The two connection ports (211) are arranged on the side walls of the installation box (210) on opposite sides. The filter plates (220) are each provided with a collecting assembly (500). The collecting assembly (500) is used to collect impurities on the surface of the filter plate (220) on the corresponding side. The two collecting assemblies (500) are respectively located at two ends of the installation box (210) along the length direction of the installation box (210). The collecting assembly (500) comprises a collecting box (510) and a guide plate (520). The length direction of the collecting box (510) is consistent with the width direction of the installation box (210). The collecting box (510) is provided with an input port (511) on a side close to the filter plate (220). The collecting box (510) ) is connected to the inner wall of the installation box (210) along one side of the length direction of the installation box (210), and the guide plate (520) is connected to the other side of the collection box (510). The length direction of the guide plate (520) is consistent with the length direction of the collection box (510). One end of the guide plate (520) is connected to the collection box (510) along its width direction, and the other end of the guide plate (520) is inclined toward the side close to the filter plate (220), and the guide plate (520) and the filter plate (220) are spaced to form a first port (521). When the filter plate (220) is located at the top of the installation box (210), the input port (511) is located at the top of the collection box (510).

5. A filtering device for printing and dyeing wastewater according to claim 4, characterized in that: Each of the filter plates (220) is provided with a scraper (224); the length direction of the scraper (224) is consistent with the width direction of the installation box (210); both ends of the scraper (224) along its length direction are in contact with the inner walls of the installation box (210) at two sides thereof; one end of the scraper (224) along its width direction is in contact with a side of the filter plate (220) close to the installation box (210); each of the scrapers (224) is provided with a drive assembly (600); the drive assembly (600) is used to drive the scraper (224) The scraper (224) moves along the length direction of the filter plate (220), and is slidably connected to one side of the filter plate (220) and the first opening (521) along the length direction of the filter plate (220). A first flexible layer (225) is connected to the side of the scraper (224) away from the filter plate (220). The first flexible layer (225) contacts the side of the guide plate (520) away from the collection box (510). When the installation box (210) rotates, the guide plate (520) contacts the first flexible layer (225).

6. A filtering device for printing and dyeing wastewater according to claim 5, characterized in that: The installation box (210) is provided with movable grooves (213) on both inner walls along the width direction thereof. One movable groove (213) corresponds to one driving assembly (600). The length direction of the movable groove (213) is consistent with the length direction of the installation box (210). The driving assembly (600) comprises a screw rod (610), a slider (620), and a second rotating member (630). The length direction of the screw rod (610) is consistent with the length direction of the installation box (210). The screw rod (610) is rotatably connected to the movable groove (213). The second rotating member (630) is connected to the installation box (210). The second rotating member (630) is used to drive the screw rod (610) to rotate. The slider (620) is threadedly sleeved on the screw rod (610). The slider (620) is slidably connected to the movable groove (213) along the length direction of the installation box (210). One end of the scraper (224) is connected to the slider (620) along the length direction.

7. A filtering device for printing and dyeing wastewater according to claim 6, characterized in that: A guide surface (622) is provided on a side of the slider (620) close to the collection box (510); an end of the guide surface (622) close to the filter plate (220) is inclined toward a side away from the collection box (510); a push plate (623) is connected to the guide surface (622); an end of the push plate (623) close to the filter plate (220) contacts an inner wall of a side of the movable groove (213) close to the filter plate (220); and one side of the push plate (623) along the length direction of the installation box (210) contacts an inner wall of a corresponding side of the movable groove (213).

8. The filtering device for printing and dyeing wastewater according to claim 4, characterized in that: A plurality of first circulation channels (513) are provided in the side wall of the collection box (510), and the first circulation channels (513) are sequentially spaced and distributed along the length direction of the collection box (510). A plurality of first water outlet holes (514) are provided in the first circulation channel (513), and the first water outlet holes (514) are located on the inner wall of the collection box (510) away from the input port (511). The first water outlet holes (514) connect the collection box (510) and the first circulation channel (513). A plurality of second water outlet holes (515) are provided in the inner wall of the first circulation channel (513), and the second water outlet holes (514) are provided on the inner wall of the first circulation channel (513). The hole (515) connects the collection box (510) and the first circulation channel (513); the second water outlet hole (515) is located on the inner walls of the collection box (510) on both sides along the width direction of the collection box (510); a third water outlet hole (516) is opened on the outer wall of the collection box (510) away from the filter plate (220); the third water outlet hole (516) connects the installation box (210) and the first circulation channel (513); the first circulation channel (513) is connected to the second circulation channel (517); and the second circulation channel (517) connects two adjacent first circulation channels (513).

9. The filtering device for printing and dyeing wastewater according to claim 1, characterized in that: One end of the water inlet pipe (110) away from the installation box (210) is connected to a water delivery pipe (111); the water delivery pipe (111) is rotatably sleeved on one end of the water inlet pipe (110); one end of the water delivery pipe (111) away from the water inlet pipe (110) is connected to two first pipes (112); one end of the two first pipes (112) is connected to the water delivery pipe (111); the other ends of the two first pipes (112) are connected to a second pipe (114); the two first pipes (112) are connected to the second pipe (114); a filter screen (113) is connected inside the first pipe (112); one end of the first pipe (112) is detachably connected to the water delivery pipe (111); the other end of the first pipe (112) is detachably connected to the second pipe (114); the second pipe (114) is connected to a first valve (115); the first valve (115) is used to control the opening and closing of the second pipe (114) and the two first pipes (112).

10. A filtering device for printing and dyeing wastewater according to claim 4, characterized in that: A connecting rod (512) is threadedly connected to one side of the filter plate (220) close to the collection box (510); the length direction of the connecting rod (512) is consistent with the vertical direction; and the other end of the connecting rod (512) is threadedly connected to the collection box (510).

Images