Printing wastewater treatment equipment

Abstract

The present invention relates to the technical field of wastewater treatment, specifically to a printing wastewater treatment device, comprising a flocculation bin and a receiving bin, and also comprising a discharge plate one, which is slidably arranged in the flocculation bin; a discharge plate two, which is movably arranged in the flocculation bin and rotatably connected to the discharge plate one; a discharge drive unit, which is arranged in the flocculation bin and connected to the discharge plate one and the discharge plate two; and is used to control the discharge plate one and the discharge plate two to move in the flocculation bin, and to control the discharge plate two to rotate when the discharge plate one and the discharge plate two move to the bottom of the flocculation bin. In this printing wastewater treatment device, the discharge drive unit drives the discharge plate one and the discharge plate two to move in the flocculation bin, and controls the discharge plate two to rotate when the discharge plate one and the discharge plate two move to the bottom of the flocculation bin, so that the wastewater that has completed sedimentation at the bottom is separated from the wastewater, thereby processing the flocs that have completed sedimentation during the floc formation process and discharging them from the flocculation bin, thereby greatly shortening the processing cycle.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to printing wastewater treatment equipment. Background Art

[0002] Printing wastewater refers to wastewater containing various pollutants and harmful substances generated during the printing production process. These wastewaters mainly come from the ink preparation, cleaning of printing equipment, use of fountain solution, printing material processing, post-press processing and workshop floor washing in the printing process. Printing wastewater may contain high concentrations of organic matter, ink particles, pigments, surfactants, heavy metal ions, acid and alkali substances and other additives. These pollutants make printing wastewater have the characteristics of complex composition, high chroma, high chemical oxygen demand and biochemical oxygen demand, and difficult degradation. If printing wastewater is discharged directly into the environment without proper treatment, it will cause serious pollution to the water body, affect water quality safety, and even damage the ecosystem. Therefore, printing wastewater will be treated before discharge to remove pollutants in the wastewater before discharge.

[0003] In the printing wastewater treatment process, the addition of flocculants is a crucial step. Its purpose is to cause the suspended particles in the sewage to coagulate into flocs that are easy to handle. These flocs are then deposited as scum in the sedimentation stage, thereby achieving initial purification of the sewage. However, a significant problem in the current sewage treatment process is that sedimentation treatment often begins only after the flocculant and sewage are fully mixed and flocs are formed. This not only prolongs the overall sewage treatment time, but also increases the risk of secondary pollution caused by the flocs being suspended in the sewage for a long time. To this end, we propose a printing sewage treatment equipment. Summary of the Invention

[0004] A technical problem to be solved by this application is that a significant problem in the current sewage treatment process is that sedimentation treatment often begins only after the flocculant and sewage are fully mixed and flocs are formed. This not only prolongs the overall sewage treatment time, but also increases the risk of secondary pollution that may be caused by the flocs being suspended in the sewage for a long time.

[0005] To solve the above technical problems, an embodiment of the present application provides a printing wastewater treatment device, including a flocculation bin and a receiving bin, and also includes a discharge plate 1, which is slidably arranged in the flocculation bin; a discharge plate 2, which is movably arranged in the flocculation bin and is rotatably connected to the discharge plate 1; a discharge drive unit, which is arranged in the flocculation bin and is connected to the discharge plate 1 and the discharge plate 2; it is used to control the movement of the discharge plate 1 and the discharge plate 2 in the flocculation bin, and control the rotation of the discharge plate 2 when the discharge plate 1 and the discharge plate 2 move to the bottom of the flocculation bin; a floating object collection unit, which is arranged on the discharge drive unit, and is used to collect and discharge flocculants that are difficult to settle in the wastewater.

[0006] In some embodiments, the discharge drive unit includes an isolation member arranged in the flocculation bin, which is used to isolate the flocs settled at the bottom of the flocculation bin from the wastewater in the flocculation bin. A discharge member is provided in the flocculation bin, which is used to discharge the isolated precipitated flocs from the flocculation bin into the receiving bin. A scraping member is provided in the flocculation bin, which is used to scrape the flocs at the bottom of the flocculation bin. A recovery member is provided in the receiving bin, which is used to send the wastewater filtered in the receiving bin back into the flocculation bin.

[0007] In some embodiments, the isolation member includes a reciprocating screw rotatably arranged in the receiving bin, the reciprocating screw is threadedly connected to the discharge plate 1, a limiting groove is provided in the flocculation bin, a limiting rod is provided on the discharge plate 1, the limiting rod is slidably connected to the limiting groove, a moving groove is provided in the flocculation bin, a spiral groove 1 is provided in the flocculation bin, the moving groove is connected to the spiral groove, a pushing rod is provided on the discharge plate 2, the pushing rod is slidably connected to the moving groove and the spiral groove 1, a power motor is provided on the flocculation bin, and the power output end of the power motor is connected to the reciprocating screw.

[0008] In some embodiments, the discharge member includes a discharge trough opened at the bottom of the flocculation bin, and the discharge trough is connected to the flocculation bin and the receiving bin on both sides. A receiving trough is opened at the bottom of the flocculation bin, and the receiving trough is connected to the discharge trough. A plurality of closing plates are also provided in the receiving trough, and a bidirectional screw rod is rotatably provided on one side of the receiving trough, and the bidirectional screw rod is threadedly connected to the closing plate. A sliding rod is rotatably provided on one end of the receiving trough away from the bidirectional screw rod, and the sliding rod is slidably connected to the closing plate. A driving motor is provided in the receiving trough, and the power output end of the driving motor is connected to the bidirectional screw rod.

[0009] In some embodiments, the scraper includes a rotating tube rotatably arranged at the bottom of the flocculation bin, a spiral groove 2 is opened in the rotating tube, a pushing block is provided on the discharge plate 1, the pushing block passes through the discharge plate 2 and is slidably connected to the discharge plate 2, the pushing block is slidably connected to the reciprocating screw, a driving rod is provided on the pushing block, the driving rod is slidably connected to the spiral groove 2, scrapers are provided on both sides of the rotating tube, and the scrapers are slidably connected to the bottom of the flocculation bin.

[0010] In some embodiments, the recovery component includes an isolation net arranged in the receiving bin, a discharge port is opened on the receiving bin, a recovery pipe is provided on the receiving bin, a water pump is provided on the receiving bin, the water pump is connected to the recovery pipe, a circulation pipe is provided on the water pump, and the circulation pipe is connected to the flocculation bin.

[0011] In some embodiments, the floating object collection unit includes a collecting member provided on the pushing block, which is used to collect unsettled flocs in the wastewater. The collecting member is provided with a discharge member, which is used to discharge the collected flocs from the flocculation bin.

[0012] In some embodiments, the collecting member includes a connecting block arranged on a pushing block, a rotating ring is rotatably arranged on the connecting block, a collecting bin is arranged on the rotating ring, capture grooves are arranged on both sides of the collecting bin, and a filter plate is rotatably arranged in the collecting bin for use in conjunction with the capture groove.

[0013] In some embodiments, the discharge member includes a discharge groove opened at the bottom of the collecting bin, a fixed block is provided on the collecting bin, a rotating shaft is rotatably provided on the fixed block, a torsion spring is provided on the rotating shaft, the torsion spring is connected to the fixed block, a sealing plate is provided on the rotating shaft, an expansion gear is provided on the rotating shaft, a positioning plate is provided on the collecting bin, a trigger rod is slidably provided on the positioning plate, an expansion rack engaged with the expansion gear is provided on the trigger rod, a limiting plate 1 and a limiting plate 2 are provided on the trigger rod, a reset spring is sleeved on the trigger rod between the limiting plate 2 and the positioning plate, a protective tube is provided on the positioning plate, the protective tube is slidably connected to the limiting plate 2, and a trigger ring for use with the trigger rod is provided in the flocculation bin.

[0014] In some embodiments, a connecting ring is provided on the rotating ring, and rotating blades are provided on the connecting ring.

[0015] The present invention has at least the following beneficial effects:

[0016] The discharge drive unit drives the discharge plate 1 and the discharge plate 2 to move in the flocculation bin, and controls the discharge plate 2 to rotate when the discharge plate 1 and the discharge plate 2 move to the bottom of the flocculation bin, so that the floccules that have been completely settled at the bottom are separated from the wastewater, thereby processing the floccules that have been completely settled during the floccules formation process and discharging them from the flocculation bin, allowing the floccules to be collected and discharged at the same time as they are formed, greatly shortening the treatment cycle. At the same time, if the floccules stay in the sewage for a long time, they may decompose and release harmful substances, affecting the wastewater treatment efficiency. Discharging the floccules in time can reduce this situation and improve the wastewater treatment efficiency.

[0017] By driving the collection bin to move in the wastewater, non-settled flocs in the wastewater can be collected. Traditional fixed collection devices may not be able to completely capture the non-settled flocs in the wastewater. These flocs may move with the water flow instead of being completely settled, and eventually enter the subsequent treatment unit. The mobile collection bin can actively move in the wastewater and more effectively capture these non-settled flocs, thereby improving the overall collection efficiency. Through the precise capture of the mobile collection bin, more flocs can be collected and processed, which helps to reduce the pollutant content in the wastewater and improve the water purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of cross-section structure;

[0020] Figure 3 For the present invention Figure 2 Another structural diagram;

[0021] Figure 4 This is a schematic structural diagram of the discharge plate 1 and the discharge plate 2 of the present invention;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the flocculation bin of the present invention;

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of explosion structure;

[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the bottom of the flocculation bin of the present invention;

[0025] Figure 8 This is a schematic structural diagram of a floating object collection unit according to the present invention;

[0026] Figure 9 For the present invention Figure 8 Schematic diagram of explosion structure;

[0027] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure of area A;

[0028] Figure 11 This is a structural diagram of embodiment 2 of the present invention.

[0029] In the figure: 1. Flocculation chamber; 2. Receiving chamber; 3. Discharge plate 1; 4. Discharge plate 2; 5. Discharge drive unit; 6. Isolation element; 61. Reciprocating screw; 62. Limiting groove; 63. Limiting rod; 64. Moving groove; 65. Spiral groove 1; 66. Push rod; 67. Power motor; 7. Discharge element; 71. Discharge groove; 72. Receiving groove; 73. Closing plate; 74. Bidirectional screw; 75. Sliding rod; 76. Drive motor; 8. Scraping element; 81. Rotating tube; 82. Spiral groove 2; 83. Pushing block; 84. Drive rod; 85. Scraper; 9. Recovery element; 91. Isolation net; 92. Discharge port; 93. Recovery pipe ;94. Water pump;95. Circulation pipe;10. Float collecting unit;11. Collecting piece;111. Connecting block;112. Rotating ring;113. Collecting bin;114. Capturing tank;115. Filter plate;12. Discharge piece;121. Discharge tank;122. Fixed block;123. Rotating shaft;124. Torsion spring;125. Sealing plate;126. Expanding gear;127. Positioning plate;128. Trigger rod;129. Expanding rack;1210. Limiting plate one;1211. Limiting plate two;1212. Return spring;1213. Protective tube;1214. Trigger ring;13. Connecting ring;14. Rotating blade. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-10 The present invention provides a technical solution: a printing wastewater treatment device, including a flocculation bin 1 and a receiving bin 2, and also including a discharge plate 3, which is slidably arranged in the flocculation bin 1; a discharge plate 2 4, which is movably arranged in the flocculation bin 1 and is rotatably connected to the discharge plate 3.

[0032] The discharge drive unit 5 is arranged in the flocculation bin 1 and is connected to the discharge plate 1 3 and the discharge plate 2 4; it is used to control the movement of the discharge plate 1 3 and the discharge plate 2 4 in the flocculation bin 1, and control the rotation of the discharge plate 2 4 when the discharge plate 1 3 and the discharge plate 2 4 move to the bottom of the flocculation bin 1.

[0033] The floating object collecting unit 10 is provided on the discharge driving unit 5 and is used to collect and discharge flocculants that are difficult to settle in the wastewater.

[0034] The mobile collection bin 113 can actively move in the wastewater to more effectively capture these non-settled flocs, thereby improving the overall collection efficiency. Through the precise capture of the mobile collection bin 113, more flocs can be collected and processed, which helps to reduce the pollutant content in the wastewater and improve the water purification effect.

[0035] The discharge drive unit 5 includes an isolation member 6 arranged in the flocculation bin 1, which is used to isolate the flocs settled at the bottom of the flocculation bin 1 from the wastewater in the flocculation bin 1. The flocculation bin 1 is provided with a discharge member 7, which is used to discharge the isolated precipitated flocs from the flocculation bin 1 into the receiving bin 2. The flocculation bin 1 is provided with a scraping member 8 for scraping the flocs at the bottom of the flocculation bin 1. The receiving bin 2 is provided with a recovery member 9, which is used to send the wastewater filtered in the receiving bin 2 back into the flocculation bin 1.

[0036] The isolator 6 includes a reciprocating screw 61 rotatably arranged in the receiving bin 2, the reciprocating screw 61 is threadedly connected to the discharge plate 3, a limiting groove 62 is provided in the flocculation bin 1, a limiting rod 63 is provided on the discharge plate 3, the limiting rod 63 is slidably connected to the limiting groove 62, a moving groove 64 is provided in the flocculation bin 1, a spiral groove 65 is provided in the flocculation bin 1, the moving groove 64 is connected to the spiral groove, a push rod 66 is provided on the discharge plate 24, the push rod 66 is slidably connected to the moving groove 64 and the spiral groove 65, a power motor 67 is provided on the flocculation bin 1, and the power output end of the power motor 67 is connected to the reciprocating screw 61, When flocculation and sedimentation of printing wastewater are carried out, the power motor 67 is controlled by the program to work, and the power motor 67 drives the reciprocating screw 61 to rotate. The rotation of the reciprocating screw 61 drives the discharge plate 3 to move up and down in the flocculation bin 1. The movement of the discharge plate 3 can stir the water body, promote the full contact and collision between the flocculant and the colloidal particles and suspended matter in the wastewater, thereby improving the flocculation effect. At the same time, the up and down movement of the discharge plate 3 helps to accelerate the formation and sedimentation of flocs. During the movement, the discharge plate 3 can play a role similar to "scraping mud", separating the already formed flocs from the water body, accelerating their sedimentation to the bottom of the sedimentation bin, and synchronously driving the discharge plate 2 4 to move synchronously.

[0037] After the wastewater has settled for a certain period of time, the discharge plate 13 and the discharge plate 24 are moved to the bottom of the flocculation bin 1 by the drive of the reciprocating screw 61. At this time, the push rod 66 on the discharge plate 24 contacts the spiral groove 1 65 and rotates under the drive of the spiral groove 1 65, so that the discharge plate 13 and the discharge plate 24 are misaligned, thereby separating the sediment at the bottom of the flocculation bin 1 from the wastewater above the flocculation bin 1. After the discharge plate 13 and the discharge plate 24 move synchronously to the bottom, the push rod 66 contacts the spiral groove 1 65, triggering the rotational dislocation design, so that the sediment and the wastewater are quickly separated by layers. This mechanical linkage avoids the secondary mixing problem of traditional static sedimentation and improves the thoroughness of solid-liquid separation.

[0038] The discharge member 7 includes a discharge trough 71 provided at the bottom of the flocculation bin 1, and the two sides of the discharge trough 71 are connected to the flocculation bin 1 and the receiving bin 2. A receiving groove 72 is provided at the bottom of the flocculation bin 1, and the receiving groove 72 is connected to the discharge trough 71. A plurality of closing plates 73 are also provided in the receiving groove 72. A bidirectional screw rod 74 is rotatably provided on one side of the receiving groove 72, and the bidirectional screw rod 74 is threadedly connected to the closing plate 73. A sliding rod 75 is rotatably provided at one end of the receiving groove 72 away from the bidirectional screw rod 74, and the sliding rod 75 is slidably connected to the closing plate 73. A drive motor 76 is provided in the receiving groove 72, and the power output end of the drive motor 76 is connected to the bidirectional screw rod 74. When the drive motor 76 in the receiving groove 72 The motor 76 works, and the driving motor 76 drives the bidirectional screw rod 74 to rotate, further driving the multiple closing plates 73 in the receiving tank 72 to move in opposite directions, so that the receiving bin 2 is connected with the flocculation bin 1, so that the separated sediment enters the receiving bin 2 through the discharge trough 71. The above design can process the flocculent matter that has been precipitated during the flocculent formation process and discharge it from the flocculation bin 1, while allowing the flocculent matter to be collected and discharged at the same time as it is formed, greatly shortening the treatment cycle. At the same time, the flocculent matter may decompose and release harmful substances if it stays in the sewage for a long time, affecting the treatment efficiency of the wastewater. Discharging the flocculent matter in time can reduce this situation and improve the treatment efficiency of the wastewater.

[0039] The scraper 8 includes a rotating tube 81 rotatably arranged at the bottom of the flocculation bin 1, a spiral groove 2 82 is provided in the rotating tube 81, a pushing block 83 is provided on the discharge plate 3, the pushing block 83 passes through the discharge plate 2 4 and is slidably connected to the discharge plate 2 4, the pushing block 83 is slidably connected to the reciprocating screw 61, a driving rod 84 is provided on the pushing block 83, the driving rod 84 is slidably connected to the spiral groove 2 82, and scrapers 85 are provided on both sides of the rotating tube 81, and the scrapers 85 are slidably connected to the bottom of the flocculation bin 1. When the discharge plate 3 descends, the pushing block 83 connected thereto is driven to descend synchronously, and when the pushing block 83 descends, the driving rod 84 is driven to descend synchronously, and the descending movement of the discharge plate 3 is used as a power source by pushing the pushing block 85. 83. The cooperation between the driving rod 84 and the spiral groove converts vertical motion into rotational motion. This energy transmission method does not require an additional power device, reducing the energy consumption and maintenance cost of the equipment. After the driving rod 84 drops to a certain distance, it contacts the spiral groove and drives the second spiral groove 82 and the rotating tube 81 to rotate. The rotation of the rotating tube 81 drives the scraper 85 to rotate. The cooperation design of the second spiral groove 82 and the rotating tube 81 completes the conversion from linear motion to rotational motion in a limited space. The rotation radius of the scraper 85 can accurately match the bottom contour of the flocculation bin 1, effectively removing corner residues, so that the sediment remaining at the bottom of the flocculation bin 1 is pushed into the receiving bin 2 by the scraper 85, avoiding the problem of flocculent residue in the traditional static flocculation tank, thereby improving the discharge effect of the flocculent.

[0040] The recovery component 9 includes an isolation net 91 arranged in the receiving bin 2, a discharge port 92 is opened on the receiving bin 2, a recovery pipe 93 is provided on the receiving bin 2, a water pump 94 is provided on the receiving bin 2, the water pump 94 is connected to the recovery pipe 93, a circulation pipe 95 is provided on the water pump 94, and the circulation pipe 95 is connected to the flocculation bin 1. At the same time, the isolation net 91 in the receiving bin 2 can separate the wastewater brought in by the flocculants, and the separated wastewater is re-discharged into the flocculation bin 1 under the drive of the water pump 94, the recovery pipe 93 and the circulation pipe 95. The advantage of the recovery component 9 is that it can filter the discharged flocculants, separate the wastewater and then send it back to the flocculation bin 1 for purification. At the same time, the precipitated flocculants can be more conveniently processed in the next link.

[0041] The floating object collecting unit 10 includes a collecting member 11 provided on the pushing block 83 , which is used to collect unsettled flocs in the wastewater. The collecting member 11 is provided with a discharge member 12 , which is used to discharge the collected flocs from the flocculation bin 1 .

[0042] The collecting member 11 includes a connecting block 111 provided on the pushing block 83, and a rotating ring 112 is rotatably provided on the connecting block 111, and a collecting bin 113 is provided on the rotating ring 112. Capturing grooves 114 are provided on both sides of the collecting bin 113, and filter plates 115 that cooperate with the capturing grooves 114 are rotatably provided in the collecting bin 113. When the discharge plate 113 moves, the connecting block 111 and the connecting ring 13 connected thereto are driven to move synchronously, and when the connecting ring 13 moves, the collecting bin 113 is driven to move synchronously. While the collecting bin 113 moves, it will rotate around the reciprocating screw 61 driven by the water flow. When the collecting bin 113 rotates, the filter plate 115 provided on one side thereof will be deflected and opened under the action of the water flow, while the filter plate 115 on the other side remains in a closed state under the restriction of the capturing groove 114. When the collecting bin 113 rotates around the reciprocating screw 61, the water flow impact is used to realize the intelligent opening and closing of the filter plate 115, and the filter plate 115 on the open side is opened. The water force automatically deflects to form a filtration channel, and the closed side is kept closed by means of the capture groove 114, forming a one-way filtration path. This self-regulating system can adapt to different flow rate conditions to ensure stable filtration efficiency, so that when the wastewater flows through the collection chamber 113, the flocculants are left behind and the wastewater is discharged, and the collection chamber 113 simultaneously performs axial movement and rotational movement, covering a larger filtration area through a composite motion trajectory. The spiral motion of the reciprocating screw 61 and the synergistic effect of the water flow effectively prevent the flocculants from accumulating on the surface of the filter plate 115, reducing the risk of clogging. By driving the collection chamber 113 to move in the wastewater, the flocculants that do not settle in the wastewater can be collected. Traditional fixed collection devices may not be able to completely capture the non-settled flocculants in the wastewater. These flocculants may move with the water flow instead of being completely settled, and eventually enter the subsequent treatment unit. Since the flocculants themselves may contain various pollutants, if they are not effectively precipitated and removed, the overall water purification effect will be affected.

[0043] The discharge member 12 includes a discharge slot 121 opened at the bottom of the collection bin 113, a fixed block 122 is provided on the collection bin 113, a rotating shaft 123 is rotatably provided on the fixed block 122, a torsion spring 124 is provided on the rotating shaft 123, the torsion spring 124 is connected to the fixed block 122, a sealing plate 125 is provided on the rotating shaft 123, an expansion gear 126 is provided on the rotating shaft 123, a positioning plate 127 is provided on the collection bin 113, the A trigger rod 128 is slidably provided on the positioning plate 127, and an expansion rack 129 is provided on the trigger rod 128 to engage with the expansion gear 126. A limiting plate 1210 and a limiting plate 2 1211 are provided on the trigger rod 128. A return spring 1212 is sleeved on the trigger rod 128 between the limiting plate 2 1211 and the positioning plate 127. A protective tube 1213 is provided on the positioning plate 127, and the protective tube 1213 is slidably connected to the limiting plate 2 1211. The flocculation bin 1 is provided with a trigger ring 1214 for use with the trigger rod 128. When discharge is required, the collection bin 113 and the trigger rod 128 provided on the collection bin 113 will be driven by the discharge plate 3 to descend. When the trigger rod 128 descends, it contacts the trigger ring 1214 and contracts under the push of the trigger ring 1214. The cooperation between the trigger rod 128 and the trigger ring 1214 forms a position sensing system, which is triggered only when the collection bin 113 descends to a preset height. This mechanical position switch replaces the electronic sensor to avoid false triggering caused by sewage corrosion or impurity interference, so that the expansion rack 129 connected to the trigger rod 128 moves synchronously, and the movement of the expansion rack 129 drives the expansion gear 126 to rotate synchronously. When the expansion gear 126 rotates, it drives the rotating shaft 123 to rotate synchronously. The rotation of the rotating shaft 123 drives the sealing plate 125 to rotate, so that the discharge groove 121 at the bottom of the collection bin 113 is opened, thereby discharging the collected flocculants.

[0044] Example 2: Please refer to Figure 11 The present invention provides a technical solution: a connecting ring 13 is provided on the rotating ring 112, and a rotating blade 14 is provided on the connecting ring 13. When the rotating blade 14 rises and falls, the rotating blade 14 is pushed to rotate by the water flow, thereby driving the connecting ring 13 and the rotating ring 112 to rotate synchronously, and further driving the collecting bin 113 to rotate in the wastewater, thereby improving the collection effect of the collecting bin 113 on floating flocs.

[0045] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0046] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A printing wastewater treatment device, comprising a flocculation chamber (1) and a receiving chamber (2), characterized in that: It also includes a discharge plate 1 (3) and a discharge plate 2 (4) which are slidably arranged in the flocculation bin (1), and the discharge plate 1 (3) and the discharge plate 2 (4) are rotatably connected. In addition, a discharge drive unit (5) connected to the discharge plate 1 (3) and the discharge plate 2 (4) is provided in the flocculation bin (1), and a floating object collection unit (10) is provided on the discharge drive unit (5) for collecting and discharging flocculants that are difficult to settle in the wastewater. The discharge drive unit (5) comprises an isolating member (6) and a discharging member (7) arranged in the flocculation bin (1), wherein the isolating member (6) isolates the flocculent material settled at the bottom of the flocculation bin (1) from the wastewater in the flocculation bin (1), and the discharging member (7) discharges the isolated precipitated flocculent material from the flocculation bin (1) into the receiving bin (2); A scraping element (8) is also provided in the flocculation bin (1), and a recycling element (9) is provided in the receiving bin (2); The isolating member (6) includes a reciprocating screw (61) rotatably arranged in the receiving bin (2) and threadedly connected to the discharge plate (3); a limiting groove (62) is provided in the flocculation bin (1); a limiting rod (63) is provided on the discharge plate (3) and is slidably connected to the side wall of the limiting groove (62); a movable groove (64) and a spiral groove (65) are connected in the flocculation bin (1); a pushing rod (66) is provided on the discharge plate (4); the pushing rod (66) is slidably connected to the side walls of the movable groove (64) and the spiral groove (65); and a power motor (67) is provided on the flocculation bin (1) whose power output end is connected to the reciprocating screw (61).

2. The printing wastewater treatment equipment according to claim 1, characterized in that: The discharge member (7) comprises a discharge groove (71) and a receiving groove (72) which are connected to each other and are opened at the bottom of the flocculation bin (1); both sides of the discharge groove (71) are respectively connected to the flocculation bin (1) and the receiving bin (2); A bidirectional screw rod (74) is rotatably provided on one side of the receiving groove (72), and a closing plate (73) is threadedly mounted on the bidirectional screw rod (74) and is slidably connected to the side wall of the receiving groove (72); A sliding rod (75) is rotatably provided on the other side of the receiving groove (72), and the sliding rod (75) is slidably connected to the closing plate (73). A driving motor (76) having a power output end connected to a bidirectional screw rod (74) is provided in the receiving groove (72).

3. The printing wastewater treatment equipment according to claim 2, characterized in that: The scraper (8) includes a rotating tube (81) rotatably arranged at the bottom of the flocculation bin (1) and having a second spiral groove (82) opened therein, and a pushing block (83) penetrating the second discharge plate (4) and slidably connected to the second discharge plate (4) is provided on the first discharge plate (3), and the pushing block (83) is slidably connected to the reciprocating screw (61), and a driving rod (84) is provided on the pushing block (83), and the driving rod (84) is movably inserted into the second spiral groove (82), and scrapers (85) in contact with the bottom of the flocculation bin (1) are provided on both sides of the rotating tube (81).

4. The printing wastewater treatment equipment according to claim 3, characterized in that: The recovery component (9) includes a discharge port (92), a recovery pipe (93), a water pump (94) and an isolation net (91). The water pump (94) is connected to the recovery pipe (93). A circulation pipe (95) is provided on the water pump (94), and the circulation pipe (95) is connected to the flocculation bin (1).

5. The printing wastewater treatment equipment according to claim 4, characterized in that: The floating object collecting unit (10) comprises a collecting member (11) arranged on a pushing block (83), a discharging member (12) being provided on the collecting member (11), the collecting member (11) collecting unsettled flocs in the wastewater, and the discharging member (12) discharging the collected flocs out of the flocculation bin (1).

6. The printing wastewater treatment equipment according to claim 5, characterized in that: The collecting member (11) comprises a connecting block (111) arranged on a pushing block (83), a rotating ring (112) being rotatably arranged on the connecting block (111), a collecting bin (113) having catch grooves (114) on both sides being arranged on the rotating ring (112), and a filter plate (115) for use with the catch grooves (114) being rotatably arranged in the collecting bin (113).

7. The printing wastewater treatment equipment according to claim 6, characterized in that: The discharge member (12) includes a discharge slot (121) provided at the bottom of the collection bin (113), a fixed block (122) provided on the collection bin (113), a rotating shaft (123) rotatably provided on the fixed block (122), a torsion spring (124) connected to the fixed block (122) provided on the rotating shaft (123), a sealing plate (125) provided on the rotating shaft (123), an unfolding gear (126) provided on the rotating shaft (123), a positioning plate (127) provided on the collection bin (113), and a triggering mechanism (127) provided on the positioning plate (127) for sliding movement. The trigger rod (128) is provided with an expansion rack (129) meshing with the expansion gear (126), the trigger rod (128) is provided with a limiting plate 1 (1210) and a limiting plate 2 (1211), the trigger rod (128) is provided with a return spring (1212) sleeved between the limiting plate 2 (1211) and the positioning plate (127), the positioning plate (127) is provided with a protective tube (1213) slidably connected to the limiting plate 2 (1211), and the flocculation bin (1) is provided with a trigger ring (1214) used in conjunction with the trigger rod (128).

8. The printing wastewater treatment equipment according to claim 7, characterized in that: A connecting ring (13) is provided on the rotating ring (112), and a rotating blade (14) is provided on the connecting ring (13).

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