A printing wastewater filtering device

Abstract

The invention relates to the technical field of CF printing wastewater recycling, and discloses a printing wastewater filtering device. The invention comprises: a filter barrel; a primary filtering mechanism, which is set up inside the filter barrel, and separates the waste residue or impurities at the top of the internal wastewater while fully stirring and mixing the wastewater and the PH regulator, and reduces the loss of wastewater by reflux with the liquid during separation; a sedimentation filtering mechanism, which is set up on one side of the filter barrel, and the sedimentation filtering mechanism adds flocculants to the wastewater after the first filtration and mixes them for sedimentation and cooling, and the materials used for filtration can be replaced and adjusted to prevent blockage or deterioration, and a filter barrel is provided, and the printing wastewater and the PH regulator are fully mixed by the rotating shaft and the mixing plate in the filter barrel, and at the same time, the bubble generator at one end generates floating bubbles inside the wastewater through the air pipe and the air jet, which drives the solid impurities inside to float, thereby accelerating the wastewater filtration speed.

Description

Technical Field

[0001] The invention relates to the technical field of CO2F9 printing wastewater recovery, and in particular to a printing wastewater filtering device. Background Art

[0002] Printing is a technology that transfers ink to the surface of materials such as paper, textiles, plastics, leather, PVC, PC, etc. through processes such as plate making, inking, and pressurization to copy the contents of the original manuscripts in batches. Wastewater will be generated during the printing process. After the wastewater accumulates, it needs to be filtered and recovered to meet the discharge standards before being discharged. However, the general filtering method has a simple structure, which increases the wastewater filtration time. Various solutions used in the filtration process need to be manually stirred and mixed after addition, which is inconvenient. Therefore, a printing wastewater filtration device is proposed. Summary of the invention

[0003] The object of the present invention is to provide a printing wastewater filtering device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: A printing wastewater filtering device comprises:

[0005] Filter barrel;

[0006] A primary filter mechanism is installed inside the filter barrel. The primary filter mechanism separates the waste residue or impurities at the top of the waste water by fully mixing the waste water with the pH regulator, and refluxes the waste water with the liquid to reduce the loss of the waste water.

[0007] The sedimentation and filtration mechanism is set up on one side of the filter barrel. The sedimentation and filtration mechanism adds flocculant to the wastewater after the first filtration and mixes it for sedimentation and cooling. After sedimentation, it performs multiple filtrations to separate impurities during drainage to make the effluent clean and reduce the pollution of the discharge. The filtering materials can be replaced and adjusted to prevent blockage or deterioration.

[0008] Preferably, the primary filtration mechanism includes an upper cover, a rotating shaft, a mixing plate, and a top plate. The upper cover is mounted on the upper end of the filter barrel, the rotating shaft is rotatably installed inside the filter barrel, the mixing plate array is arranged on the rotating shaft, the top plate is fixedly installed on the upper end of the rotating shaft, and a slot is opened at the upper end of the rotating shaft.

[0009] Preferably, the primary filtration mechanism also includes a reciprocating screw, a collecting bucket, and a slide groove. The reciprocating screw is rotatably mounted on the upper inner wall of the upper cover, and the collecting bucket is rotatably mounted on the reciprocating screw. The slide groove is opened on the inner wall of the collecting bucket. The lower end of the reciprocating screw is engaged with the slot at the upper end of the rotating shaft, and the collecting bucket is slidably engaged with the inner wall of the filter bucket.

[0010] Preferably, the primary filtration mechanism also includes a baffle, an elastic spring, and filter holes. The baffle is mounted inside the collecting barrel, and the baffle is slidably connected to the slide groove. The elastic spring is mounted inside the collecting barrel, and one end of the elastic spring is fixedly connected to the upper end of the baffle and the other end is fixedly connected to the inner wall of the collecting barrel. The filter hole array is opened on the inner wall of the lower end of the collecting barrel.

[0011] Preferably, the primary filtration mechanism also includes a servo motor, a bubble generator, an air pipe, and an air jet. The servo motor is fixedly mounted on the upper end of the upper cover, and the output end of the servo motor is fixedly connected to the upper end of the reciprocating screw. The bubble generator is mounted on the other side of the filter barrel, and the air pipe is fixedly mounted on the lower end of the filter barrel. The output end of the bubble generator is fixedly connected to the air pipe, and the air jet array is inserted on the inner wall of the lower end of the filter barrel, and the air jet is fixedly connected to the air pipe.

[0012] Preferably, the primary filtration mechanism also includes a timing valve, a connecting pipe, and a water pump. The timing valve is fixedly installed at the lower end of the filter barrel, one end of the connecting pipe is fixedly connected to the timing valve, the water pump is fixedly installed on the connecting pipe, and the other end of the connecting pipe is mounted on the sedimentation filtration mechanism.

[0013] Preferably, the sedimentation and filtering mechanism includes a sedimentation barrel, a liquid adding tank, a mixing rod, and servo motor 2. The sedimentation barrel is mounted on one side of the filtering barrel, the liquid adding tank is opened at the upper end of the sedimentation barrel, the mixing rod is rotatably installed in the sedimentation barrel, the servo motor 2 is fixedly installed at the upper end of the sedimentation barrel, and the output end of the servo motor 2 is fixedly connected to the mixing rod.

[0014] Preferably, the sedimentation and filtration mechanism also includes a water outlet pipe, a filter block, a separation layer, and a chuck, one end of the water outlet pipe is fixedly installed at the lower end of the sedimentation barrel, three filter blocks are inserted in an array on the water outlet pipe, the separation layer is fixedly installed in the filter block, and the chuck is fixedly installed at the other end of the water outlet pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention is provided with a filter barrel, and the printing wastewater and the pH regulator are fully mixed through the rotating shaft and the mixing plate in the filter barrel. At the same time, the bubble generator at one end generates floating bubbles in the wastewater through the air pipe and the air jet, which drives the solid impurities inside to float up, thereby accelerating the wastewater filtering speed.

[0017] (2) The present invention is provided with a collecting barrel, which is driven by a servo motor to rotate a reciprocating screw to make the collecting barrel reciprocate up and down. When the collecting barrel moves to the lower end and contacts the top plate, the collecting barrel continues to move downward so that the top plate pushes the baffle plate to move upward along the slide groove so that the wastewater and the solid impurities on the surface enter the interior of the collecting barrel. When the collecting barrel rises, the elastic spring rebounds the baffle plate to close the collecting barrel, and the wastewater discharges the solid impurities through the filter holes in the collecting barrel to complete the solid-liquid separation inside the collecting barrel.

[0018] (3) The present invention is provided with a sedimentation barrel. After adding flocculant into the liquid adding tank, servo motor 2 drives the mixing rod to mix water and flocculant, and then stops servo motor 2 to allow sedimentation. After sedimentation for a period of time, the water is discharged by opening the faucet. The water passes through multiple filter blocks and the internal separation layer from the water outlet for secondary filtration to increase the cleanliness of the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a half-section diagram of the overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0022] In the figure: 1. filter barrel; 2. primary filter mechanism; 21. upper cover; 22. rotating shaft; 23. mixing plate; 24. top plate; 25. reciprocating screw; 26. collecting barrel; 27. slideway; 28. baffle; 29. ​​elastic spring; 210. filter hole; 211. servo motor 1; 212. bubble generator; 213. air pipe; 214. jet nozzle; 215. timing valve; 216. connecting pipe; 217. water pump; 3. sedimentation and filtration mechanism; 31. sedimentation barrel; 32. liquid adding tank; 33. mixing rod; 34. servo motor 2; 35. water outlet pipe; 36. filter block; 37. separation layer; 38. bridle. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3 The present invention provides a technical solution: a printing wastewater filtering device comprises:

[0025] Filter barrel 1;

[0026] The primary filter mechanism 2 is installed inside the filter barrel 1. The primary filter mechanism 2 separates the waste residue or impurities on the top of the waste water by fully mixing the waste water with the pH regulator, and refluxes with the liquid to reduce the loss of the waste water.

[0027] The primary filter mechanism 2 includes an upper cover 21, a rotating shaft 22, a mixing plate 23, and a top plate 24. The upper cover 21 is mounted on the upper end of the filter barrel 1, the rotating shaft 22 is rotatably mounted inside the filter barrel 1, the mixing plates 23 are arranged in an array on the rotating shaft 22, and the top plate 24 is fixedly mounted on the upper end of the rotating shaft 22. A slot is provided on the upper end of the rotating shaft 22.

[0028] The primary filter mechanism 2 further includes a reciprocating screw 25, a collecting barrel 2, and a chute 27. The reciprocating screw 25 is rotatably mounted on the inner wall of the upper end of the upper cover 21, and the collecting barrel 26 is rotatably mounted on the reciprocating screw 25. The chute 27 is provided on the inner wall of the collecting barrel 26. The lower end of the reciprocating screw 25 is engaged with the slot at the upper end of the rotating shaft 22, and the collecting barrel 26 is slidably engaged with the inner wall of the filter barrel 1.

[0029] The primary filter mechanism 2 further includes a baffle 28, an elastic spring 29, and filter holes 210. The baffle 28 is mounted inside the collection barrel 26, and the baffle 28 is slidably connected to the slide 27. The elastic spring 29 is mounted inside the collection barrel 26, and one end of the elastic spring 29 is fixedly connected to the upper end of the baffle 28 and the other end is fixedly connected to the inner wall of the collection barrel 26. The filter holes 210 are arranged in an array on the inner wall of the lower end of the collection barrel 26.

[0030] The primary filter mechanism 2 also includes a servo motor 211, a bubble generator 212, an air pipe 213, and an air jet 214. The servo motor 211 is fixedly mounted on the upper end of the upper cover 21, and the output end of the servo motor 211 is fixedly connected to the upper end of the reciprocating screw 25. The bubble generator 212 is mounted on the other side of the filter barrel 1, and the air pipe 213 is fixedly mounted on the lower end of the filter barrel 1. The output end of the bubble generator 212 is fixedly connected to the air pipe 213. The air jet 214 array is inserted on the inner wall of the lower end of the filter barrel 1, and the air jet 214 is fixedly connected to the air pipe 213.

[0031] The primary filter mechanism 2 further includes a timing valve 215, a connecting pipe 216, and a pump 217. The timing valve 215 is fixedly mounted at the lower end of the filter barrel 1, one end of the connecting pipe 216 is fixedly connected to the timing valve 215, the pump 217 is fixedly mounted on the connecting pipe 216, and the other end of the connecting pipe 216 is mounted on the sedimentation filter mechanism 3;

[0032] The sedimentation and filtration mechanism 3 is set up on one side of the filter barrel 1. The sedimentation and filtration mechanism 3 adds flocculants to the wastewater after the first filtration and mixes them for sedimentation and cooling. After the sedimentation, the wastewater is filtered and the impurities are separated for multiple times during drainage to make the effluent clean, thereby reducing the pollution of the discharge. The materials used for the filtration can be replaced and adjusted to prevent blockage or deterioration.

[0033] The sedimentation and filtration mechanism 3 includes a sedimentation barrel 31, a liquid adding tank 32, a mixing rod 33, and a servo motor 2 34. The sedimentation barrel 31 is mounted on one side of the filtration barrel 1, the liquid adding tank 32 is arranged at the upper end of the sedimentation barrel 31, the mixing rod 33 is rotatably installed in the sedimentation barrel 31, and the servo motor 2 34 is fixedly installed at the upper end of the sedimentation barrel 31, and the output end of the servo motor 2 34 is fixedly connected to the mixing rod 33;

[0034] The sedimentation and filtration mechanism 3 further includes a water outlet pipe 35, a filter block 36, a separation layer 37, and a chuck 38. One end of the water outlet pipe 35 is fixedly mounted on the lower end of the sedimentation barrel 31. Three filter blocks 36 are inserted in an array on the water outlet pipe 35. The separation layer 37 is fixedly mounted in the filter block 36. The chuck 38 is fixedly mounted on the other end of the water outlet pipe 35.

[0035] The present invention is provided with a filter barrel 1, and the printing wastewater and the pH regulator are fully mixed through the rotating shaft 22 and the mixing plate 23 in the filter barrel 1. At the same time, the bubble generator 212 at one end generates floating bubbles in the wastewater through the air pipe 213 and the air jet 214, which drives the solid impurities in the wastewater to float, thereby accelerating the wastewater filtering speed.

[0036] The present invention is provided with a collecting barrel 26, and the reciprocating screw rod 25 is driven to rotate by a servo motor 211 to make the collecting barrel 26 reciprocate up and down. When the collecting barrel 26 moves to the lower end and contacts the top plate 24, the collecting barrel 26 continues to move downward so that the top plate 24 pushes the baffle plate 28 to move upward along the slide groove so that the wastewater and the solid impurities on the surface enter the interior of the collecting barrel 26. When the collecting barrel 26 rises, the elastic spring 29 rebounds the baffle plate 28 to close the collecting barrel 26, and the wastewater is discharged through the filter hole 210 in the collecting barrel 26. The solid impurities are separated inside the collecting barrel 26 to complete the solid-liquid separation;

[0037] The present invention is provided with a sedimentation barrel 3. After adding flocculant into the liquid adding tank 32, the servo motor 2 34 drives the mixing rod 33 to mix water and flocculant, and then stops the servo motor 2 34 to allow sedimentation. After sedimentation for a period of time, the water is discharged by opening the faucet 38. The water passes through multiple filter blocks 36 and the internal separation layer 37 from the water outlet for secondary filtration to increase the cleanliness of the water.

[0038] When in use, the upper cover 21 is opened to guide the printing wastewater into the filter barrel 1. After the PH regulator is added into the filter barrel 1, the upper cover 21 is closed to make the lower end of the reciprocating screw 25 engage with the upper end slot of the rotating shaft 22 again. The servo motor 211 drives the reciprocating screw 25 to rotate. The rotation of the reciprocating screw 25 causes the rotating gear 22 to rotate, so that the rotating shaft 22 drives the mixing plate 23 to rotate to fully mix the PH regulator with the printing wastewater. After the bubble generator 212 on one side of the filter barrel 1 extracts the gas outside, The compressed air is discharged from the air jet 214 on the air pipe 213, so that a large number of bubbles generated by the printing wastewater inside the filter barrel 1 float the impurities on the water surface. At the same time, the reciprocating screw 25 rotates to make the collection barrel 26 reciprocate up and down. When the collection barrel 26 descends to the top plate 24 and continues to descend, the top plate 24 makes the baffle 28 slide upward along the slide groove 27, so that the surface water and impurities enter the interior of the collection barrel 26 from the opening at the center of the collection barrel 26. After that, the collection barrel 26 slides upward, and the elastic spring 29 is the rebound of the baffle 28 The opening of the collecting barrel 26 is closed by resetting, and the waste water inside returns to the filter barrel 1 through the filter hole 210 inside the collecting barrel 26. At the same time, a timing valve 215 is set at the lower end of the filter barrel 1. After the set time is reached, the timing valve 215 is opened to allow the waste water in the filter barrel 1 to enter the connecting pipe 216. At the same time, the pump 217 is started to allow the waste water to enter the sedimentation barrel 31 from the connecting pipe 216. Flocculant is added to the liquid adding tank 32 on the sedimentation barrel 31, and the servo motor 2 34 is started to rotate the mixing rod 33 to mix the waste water with the flocculant. After the servo motor 2 34 is closed to allow the waste water inside to react and precipitate, the tap 38 is opened to discharge the water inside from the outlet pipe 35 at the lower end of the sedimentation barrel 31. When the water enters the outlet pipe 35, the filter block 36 slidingly arranged in the outlet pipe 35 and the internal separation layer 37 are filtered multiple times to isolate the impurities inside the water, and then the tap 38 discharges qualified water. The filter block 36 can be slid out for cleaning or replacement. The separation layer 37 is a filter material such as sand or activated carbon.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing wastewater filtration device, characterized in that: A printing wastewater filtering device comprises: a filtering barrel (1); A primary filtering mechanism (2), the primary filtering mechanism (2) being mounted inside the filter barrel (1), the primary filtering mechanism (2) separating waste residues or impurities at the top of the waste water inside by fully stirring and mixing the waste water and the pH regulator, and refluxing the waste residues and impurities with the liquid to reduce waste water loss; A sedimentation and filtration mechanism (3), the sedimentation and filtration mechanism (3) being mounted on one side of the filter barrel (1), the sedimentation and filtration mechanism (3) adding a flocculant to the wastewater after the first filtration and mixing the mixture for sedimentation and cooling, and performing multiple filtrations to separate impurities during drainage after sedimentation to make the effluent clean; The primary filtering mechanism (2) comprises an upper cover (21), a rotating shaft (22), a mixing plate (23), and a top plate (24); the upper cover (21) is mounted on the upper end of the filter barrel (1); the rotating shaft (22) is rotatably mounted inside the filter barrel (1); the mixing plates (23) are arranged in an array on the rotating shaft (22); the top plate (24) is fixedly mounted on the upper end of the rotating shaft (22); and a slot is provided on the upper end of the rotating shaft (22); The primary filtering mechanism (2) further comprises a reciprocating screw (25), a collecting barrel (26), and a slide groove (27); the reciprocating screw (25) is rotatably mounted on the inner wall of the upper end of the upper cover (21); the collecting barrel (26) is rotatably mounted on the reciprocating screw (25); the slide groove (27) is formed on the inner wall of the collecting barrel (26); the lower end of the reciprocating screw (25) is engaged with a slot at the upper end of the rotating shaft (22); and the collecting barrel (26) is slidably engaged with the inner wall of the filtering barrel (1); The primary filtering mechanism (2) further comprises a baffle (28), an elastic spring (29), and filter holes (210); the baffle (28) is mounted inside the collecting barrel (26); the baffle (28) is slidably connected to the slide groove (27); the elastic spring (29) is mounted inside the collecting barrel (26); one end of the elastic spring (29) is fixedly connected to the upper end of the baffle (28) and the other end is fixedly connected to the inner wall of the collecting barrel (26); and the filter holes (210) are arranged in an array on the inner wall of the lower end of the collecting barrel (26); The primary filtering mechanism (2) further comprises a servo motor (211), a bubble generator (212), an air pipe (213), and an air jet (214); the servo motor (211) is fixedly mounted on the upper end of the upper cover (21); the output end of the servo motor (211) is fixedly connected to the upper end of the reciprocating screw (25); the bubble generator (212) is mounted on the other side of the filter barrel (1); the air pipe (213) is fixedly mounted on the lower end of the filter barrel (1); the output end of the bubble generator (212) is fixedly connected to the air pipe (213); an array of air jets (214) is inserted on the inner wall of the lower end of the filter barrel (1); and the air jets (214) are fixedly connected to the air pipe (213).

2. A printing wastewater filtration device according to claim 1, characterized in that: The primary filtering mechanism (2) further comprises a timing valve (215), a connecting pipe (216), and a water pump (217); the timing valve (215) is fixedly mounted at the lower end of the filtering barrel (1); one end of the connecting pipe (216) is fixedly connected to the timing valve (215); the water pump (217) is fixedly mounted on the connecting pipe (216); and the other end of the connecting pipe (216) is mounted on the sedimentation filtering mechanism (3).

3. A printing wastewater filtering device according to claim 1, characterized in that: The sedimentation and filtering mechanism (3) comprises a sedimentation barrel (31), a liquid adding tank (32), a mixing rod (33), and a second servo motor (34); the sedimentation barrel (31) is mounted on one side of the filtering barrel (1); the liquid adding tank (32) is disposed at the upper end of the sedimentation barrel (31); the mixing rod (33) is rotatably mounted in the sedimentation barrel (31); the second servo motor (34) is fixedly mounted at the upper end of the sedimentation barrel (31); and the output end of the second servo motor (34) is fixedly connected to the mixing rod (33).

4. A printing wastewater filtration device according to claim 3, characterized in that: The sedimentation and filtration mechanism (3) further comprises a water outlet pipe (35), a filter block (36), a separation layer (37), and a closure (38); one end of the water outlet pipe (35) is fixedly mounted on the lower end of the sedimentation barrel (31); three filter blocks (36) are inserted in an array on the water outlet pipe (35); the separation layer (37) is fixedly mounted in the filter block (36); and the closure (38) is fixedly mounted on the other end of the water outlet pipe (35).

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