Printing sewage treatment equipment

Abstract

The invention relates to the technical field of wastewater treatment, in particular to printing sewage treatment equipment which comprises a flocculation bin and a containing bin and further comprises a first discharge plate arranged in the flocculation bin in a sliding mode. The discharge plate II is movably arranged in the flocculation bin and is rotationally connected with the discharge plate I; the discharge driving unit is arranged in the flocculation bin and is connected with the discharge plate I and the discharge plate II; the control unit is used for controlling the first discharge plate and the second discharge plate to move in the flocculation bin and controlling the second discharge plate to rotate when the first discharge plate and the second discharge plate move to the bottom of the flocculation bin, and according to the printing sewage treatment equipment, the first discharge plate and the second discharge plate are driven by the discharge driving unit to move in the flocculation bin; and when the first discharge plate and the second discharge plate move to the bottom of the flocculation bin, the second discharge plate is controlled to rotate, so that the bottom precipitate is separated from the wastewater, the precipitated flocculate is treated in the flocculate forming process, the flocculate is discharged from the flocculation bin, and the treatment period is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a printing sewage treatment device. Background Art

[0002] Printing wastewater refers to the wastewater containing various pollutants and harmful substances generated during the printing production process. These wastewaters mainly come from ink preparation, cleaning of printing equipment, use of dampening solution, handling of printing materials, post-press processing, and floor flushing in the workshop during the printing process. Printing wastewater may contain high concentrations of organic matter, ink particles, pigments, surfactants, heavy metal ions, acid-base substances, and other additives. These pollutants make the printing wastewater have the characteristics of complex composition, high chroma, high chemical oxygen demand and biochemical oxygen demand, and difficult degradation. If the printing wastewater is directly discharged 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, the printing wastewater will be treated before discharge to remove the pollutants in the wastewater and then discharged.

[0003] In the printing wastewater treatment process, adding a flocculant is a crucial step, aiming to promote the suspension particles in the sewage to coagulate into flocs that are easy to handle. These flocs will then deposit as scum during the precipitation stage, thus achieving the preliminary purification of the sewage. However, a significant problem in the current sewage treatment process is that the precipitation treatment often starts after the flocculant is fully mixed with the sewage and the flocs are formed. This not only prolongs the overall sewage treatment time but also increases the risk of secondary pollution caused by the long-term suspension of flocs in the sewage. For this reason, we propose a printing sewage treatment device. Summary of the Invention

[0004] One technical problem to be solved by the present application is that: a significant problem in the current sewage treatment process is that the precipitation treatment often starts after the flocculant is fully mixed with the sewage and the flocs are formed. This not only prolongs the overall sewage treatment time but also increases the risk of secondary pollution caused by the long-term suspension of flocs in the sewage.

[0005] To solve the above technical problem, the embodiment of the present application provides a printing sewage treatment device, including a flocculation bin and a receiving bin, and further including a discharge plate one, slidably arranged in the flocculation bin; a discharge plate two, movably arranged in the flocculation bin and rotatably connected to the discharge plate one; a discharge driving unit, arranged in the flocculation bin and connected to the discharge plate one and the discharge plate two; used to control the movement of the discharge plate one and the discharge plate two in the flocculation bin and control the rotation of the discharge plate two when the discharge plate one and the discharge plate two move to the bottom of the flocculation bin; a floating matter collection unit, arranged on the discharge driving unit, used to collect and discharge the flocs that are difficult to precipitate in the wastewater.

[0006] In some embodiments, the discharge driving unit includes a separator disposed in the flocculation bin. The separator is used to isolate the flocculants precipitated at the bottom of the flocculation bin from the wastewater in the flocculation bin. A discharge member is disposed in the flocculation bin, and the isolated precipitated flocculants are discharged from the flocculation bin into the receiving bin by the discharge member. A scraping member is disposed in the flocculation bin for scraping the flocculants at the bottom of the flocculation bin. A recycling member is disposed in the receiving bin, and the filtered wastewater in the receiving bin is recycled into the flocculation bin by the recycling member.

[0007] In some embodiments, the separator includes a reciprocating lead screw rotatably disposed in the receiving bin. The reciprocating lead screw is threadedly connected to a first discharge plate. A limiting groove is formed in the flocculation bin. A limiting rod is disposed on the first discharge plate, and the limiting rod is slidably connected to the limiting groove. A moving groove is formed in the flocculation bin, and a first spiral groove is formed in the flocculation bin. The moving groove communicates with the spiral groove. A pushing rod is disposed on a second discharge plate, and the pushing rod is slidably connected to the moving groove and the first spiral groove. A power motor is disposed on the flocculation bin, and the power output end of the power motor is connected to the reciprocating lead screw.

[0008] In some embodiments, the discharge member includes a discharge groove formed in the bottom of the flocculation bin. Both sides of the discharge groove communicate with the flocculation bin and the receiving bin. A receiving groove is formed in the bottom of the flocculation bin, and the receiving groove communicates with the discharge groove. A plurality of closing plates are further disposed in the receiving groove. A bidirectional lead screw is rotatably disposed on one side of the receiving groove, and the bidirectional lead screw is threadedly connected to the closing plates. A sliding rod is rotatably disposed at one end of the receiving groove away from the bidirectional lead screw, and the sliding rod is slidably connected to the closing plates. A driving motor is disposed in the receiving groove, and the power output end of the driving motor is connected to the bidirectional lead screw.

[0009] In some embodiments, the scraping member includes a rotating tube rotatably disposed at the bottom of the flocculation bin. A second spiral groove is formed in the rotating tube. A pushing block is disposed on the first discharge plate. The pushing block penetrates through the second discharge plate and is slidably connected to the second discharge plate. The pushing block is slidably connected to the reciprocating lead screw. A driving rod is disposed on the pushing block, and the driving rod is slidably connected to the second spiral groove. Scrapers are disposed 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 recycling member includes an isolation net disposed in the receiving bin. A discharge port is formed in the receiving bin. A recycling pipe is disposed on the receiving bin. A water pump is disposed on the receiving bin, and the water pump is connected to the recycling pipe. A circulation pipe is disposed on the water pump, and the circulation pipe communicates with the flocculation bin.

[0011] In some embodiments, the floating matter collection unit includes a collection member disposed on the pushing block, and the collection member is used to collect the non-precipitating flocculants in the wastewater. A discharge member is disposed on the collection member, and the collected flocculants are discharged from the flocculation chamber by the discharge member.

[0012] In some embodiments, the collection member includes a connection block disposed on the pushing block. A rotating ring is rotatably disposed on the connection block. A collection chamber is disposed on the rotating ring. Capturing grooves are disposed on both sides of the collection chamber. A filter plate that cooperates with the capturing grooves is rotatably disposed in the collection chamber.

[0013] In some embodiments, the discharge member includes a discharge groove formed at the bottom of the collection chamber. A fixed block is disposed on the collection chamber. A rotating shaft is rotatably disposed on the fixed block. A torsion spring is disposed on the rotating shaft, and the torsion spring is connected to the fixed block. A sealing plate is disposed on the rotating shaft. A deployment gear is disposed on the rotating shaft. A positioning plate is disposed on the collection chamber. A trigger rod is slidably disposed on the positioning plate. A deployment rack that meshes with the deployment gear is disposed on the trigger rod. A limiting plate one and a limiting plate two are disposed on the trigger rod. A return spring is sleeved between the limiting plate two and the positioning plate on the trigger rod. A protective tube is disposed on the positioning plate, and the protective tube is slidably connected to the limiting plate two. A trigger ring that cooperates with the trigger rod is disposed in the flocculation chamber.

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

[0015] The present invention has at least the following beneficial effects: The discharge driving unit drives the discharge plate one and the discharge plate two to move in the flocculation chamber, 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 chamber, so that the flocculants that have completed precipitation at the bottom are separated from the wastewater. Thus, the flocculants that have completed precipitation are processed during the formation of the flocculants and discharged from the flocculation chamber, allowing collection and discharge while the flocculants are being formed, greatly shortening the treatment cycle. At the same time, the flocculants may decompose and release harmful substances during long-term residence in the sewage, affecting the treatment efficiency of the wastewater. Timely discharging the flocculants can reduce this situation and improve the treatment efficiency of the wastewater. By driving the collection bin to move in the wastewater, flocs that do not precipitate in the wastewater can be collected. Traditional fixed collection devices may not be able to fully capture the non-precipitating flocs in the wastewater. These flocs may move with the water flow rather than fully precipitate and eventually enter the subsequent treatment unit. However, the mobile collection bin can actively move in the wastewater and more effectively capture these non-precipitating flocs, thereby improving the overall collection efficiency. Through the precise capture of the mobile collection bin, more flocs can be ensured to be collected and treated, which helps to reduce the pollutant content in the wastewater and improve the water purification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of the sectional structure; Figure 3 For the present invention Figure 2 Schematic diagram of the structure from another orientation; Figure 4 Schematic diagram of the structures of discharge plate 1 and discharge plate 2 of the present invention; Figure 5 Schematic diagram of the bottom surface of the flocculation bin of the present invention; Figure 6 For the present invention Figure 5 Explosion structure diagram; Figure 7 Schematic diagram of the sectional structure at the bottom of the flocculation bin of the present invention; Figure 8 Schematic diagram of the structure of the floating matter collection unit of the present invention; Figure 9 For the present invention Figure 8 Explosion structure diagram; Figure 10 For the present invention Figure 9 Enlarged structure diagram of area A in the present invention; Figure 11 Schematic diagram of Embodiment 2 of the present invention.

[0017] In the figure: 1. Flocculation bin; 2. Receiving bin; 3. Discharge plate 1; 4. Discharge plate 2; 5. Discharge driving unit; 6. Isolator; 61. Reciprocating lead screw; 62. Limit groove; 63. Limit rod; 64. Moving groove; 65. First spiral groove; 66. Pushing rod; 67. Power motor; 7. Discharge part; 71. Discharge groove; 72. Receiving groove; 73. Closing plate; 74. Bidirectional lead screw; 75. Sliding rod; 76. Driving motor; 8. Scraping part; 81. Rotating pipe; 82. Second spiral groove; 83. Pushing block; 84. Driving rod; 85. Scraper; 9. Recycling part; 91. Isolation net; 92. Discharge port; 93. Recycling pipe; 94. Water pump; 95. Circulation pipe; 10. Floating matter collection unit; 11. Collection part; 111. Connecting block; 112. Rotating ring; 113. Collection bin; 114. Capturing groove; 115. Filter plate; 12. Discharge piece; 121. Discharge groove; 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. First limiting plate; 1211. Second limiting plate; 1212. Return spring; 1213. Protective pipe; 1214. Trigger ring; 13. Connecting ring; 14. Rotating blade. Detailed implementation mode

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment 1: Please refer to Figures 1 - 10 , the present invention provides a technical solution: A printing sewage treatment device includes a flocculation bin 1 and a receiving bin 2, and further includes a discharge plate 1, which is slidably arranged in the flocculation bin 1; a discharge plate 2, which is movably arranged in the flocculation bin 1 and is rotatably connected to the discharge plate 1.

[0020] A discharge driving unit 5 is arranged in the flocculation bin 1 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 1 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 1.

[0021] A floating matter collection unit 10 is arranged on the discharge driving unit 5 and is used to collect and discharge the flocculants that are difficult to precipitate in the wastewater.

[0022] The mobile collection bin 113 can actively move in the wastewater, more effectively capture these non-settling flocculants, thereby improving the overall collection efficiency. Through the precise capture of the mobile collection bin 113, more flocculants can be ensured to be collected and treated, which helps to reduce the pollutant content in the wastewater and improve the water purification effect.

[0023] The discharge drive unit 5 includes a partition 6 arranged in the flocculation bin 1. The partition 6 is used to isolate the flocculants precipitated at the bottom of the flocculation bin 1 from the wastewater in the flocculation bin 1. A discharge member 7 is arranged in the flocculation bin 1, and the isolated precipitated flocculants are discharged from the flocculation bin 1 into the storage bin 2 by the discharge member 7. A scraping member 8 is arranged in the flocculation bin 1 for scraping the flocculants at the bottom of the flocculation bin 1. A recycling member 9 is arranged in the storage bin 2, and the filtered wastewater in the storage bin 2 is sent back into the flocculation bin 1 by the recycling member 9.

[0024] The partition 6 includes a reciprocating lead screw 61 rotatably arranged in the storage bin 2. The reciprocating lead screw 61 is threadedly connected to the first discharge plate 3. A limiting groove 62 is formed in the flocculation bin 1. A limiting rod 63 is arranged on the first discharge plate 3, and the limiting rod 63 is slidably connected to the limiting groove 62. A moving groove 64 is formed in the flocculation bin 1, and a first spiral groove 65 is formed in the flocculation bin 1. The moving groove 64 is communicated with the spiral groove. A push rod 66 is arranged on the second discharge plate 4, and the push rod 66 is slidably connected to the moving groove 64 and the first spiral groove 65. A power motor 67 is arranged on the flocculation bin 1, and the power output end of the power motor 67 is connected to the reciprocating lead screw 61. When performing the flocculation precipitation of printing wastewater, the power motor 67 is controlled to work through a program. The power motor 67 drives the reciprocating lead screw 61 to rotate when working. The reciprocating lead screw 61 drives the first discharge plate 3 to move up and down in the flocculation bin 1. The movement of the first discharge plate 3 can stir the water body, promote the full contact and collision between the flocculant and the colloidal particles and suspended substances in the wastewater, thereby improving the flocculation effect. At the same time, the up and down movement of the first discharge plate 3 helps to accelerate the formation and settlement of flocs. During the movement, the first discharge plate 3 can play a role similar to "scraping mud", separating the formed flocs from the water body, accelerating their settlement to the bottom of the precipitation bin, and synchronously driving the second discharge plate 4 to move synchronously.

[0025] After the wastewater has been sedimented for a certain period of time, the discharge plate 1-3 and the discharge plate 2-4 move to the bottom of the flocculation chamber 1 driven by the reciprocating lead screw 61. At this time, the push rod 66 located on the discharge plate 2-4 contacts the first spiral groove 65 and rotates driven by the first spiral groove 65, causing the discharge plate 1-3 and the discharge plate 2-4 to be misaligned, thereby separating the sediment at the bottom of the flocculation chamber 1 from the wastewater above the flocculation chamber 1. After the discharge plate 1-3 and the discharge plate 2-4 move synchronously to the bottom, the contact between the push rod 66 and the first spiral groove 65 triggers the rotation misalignment design, enabling the sediment and the wastewater to be quickly stratified and isolated. This mechanical linkage avoids the problem of secondary mixing in traditional static sedimentation and improves the thoroughness of solid-liquid separation.

[0026] The discharge member 7 includes a discharge groove 71 opened at the bottom of the flocculation chamber 1. Both sides of the discharge groove 71 communicate with the flocculation chamber 1 and the receiving chamber 2. A receiving groove 72 is opened at the bottom of the flocculation chamber 1, and the receiving groove 72 communicates with the discharge groove 71. A plurality of closing plates 73 are further arranged in the receiving groove 72. A bidirectional lead screw 74 is rotatably arranged on one side of the receiving groove 72. The bidirectional lead screw 74 is threadedly connected to the closing plate 73. A sliding rod 75 is rotatably arranged at one end of the receiving groove 72 away from the bidirectional lead screw 74. The sliding rod 75 is slidably connected to the closing plate 73. A driving motor 76 is arranged in the receiving groove 72. The power output end of the driving motor 76 is connected to the bidirectional lead screw 74. When the driving motor 76 in the receiving groove 72 works, the driving motor 76 drives the bidirectional lead screw 74 to rotate, further driving a plurality of closing plates 73 in the receiving groove 72 to move in opposite directions to each other, enabling the receiving chamber 2 to communicate with the flocculation chamber 1, so that the separated sediment enters the receiving chamber 2 through the discharge groove 71. The above design can process the flocculants that have completed sedimentation during the formation of the flocculants, discharge them from the flocculation chamber 1, and at the same time allow collection and discharge while the flocculants are being formed, greatly shortening the treatment cycle. At the same time, the flocculants may decompose and release harmful substances after staying in the sewage for a long time, affecting the treatment efficiency of the wastewater. Timely discharging the flocculants can reduce this situation and improve the treatment efficiency of the wastewater.

[0027] The scraping member 8 includes a rotating pipe 81 rotatably arranged at the bottom of the flocculation bin 1. A second spiral groove 82 is formed in the rotating pipe 81. A pushing block 83 is arranged on the first discharge plate 3. The pushing block 83 penetrates through the second discharge plate 4 and is slidably connected to the second discharge plate 4. The pushing block 83 is slidably connected to the reciprocating lead screw 61. A driving rod 84 is arranged on the pushing block 83. The driving rod 84 is slidably connected to the second spiral groove 82. Scrapers 85 are arranged on both sides of the rotating pipe 81. The scrapers 85 are slidably connected to the bottom of the flocculation bin 1. When the first discharge plate 3 descends, it drives the pushing block 83 connected thereto to descend synchronously. When the pushing block 83 descends, it drives the driving rod 84 to descend synchronously. Using the descending movement of the first discharge plate 3 as a power source, through the cooperation of the pushing block 83, the driving rod 84 and the spiral groove, the vertical movement is converted into a rotational movement. This energy transfer method does not require an additional power device, reducing the equipment energy consumption and maintenance cost. After the driving rod 84 descends a certain distance, it contacts the spiral groove and drives the second spiral groove 82 and the rotating pipe 81 to rotate. The rotation of the rotating pipe 81 drives the scrapers 85 to rotate. The matching design of the second spiral groove 82 and the rotating pipe 81 completes the conversion from linear motion to rotational motion within a limited space. The rotation radius of the scrapers 85 can accurately match the bottom contour of the flocculation bin 1, effectively removing the residues at the corners, so that the precipitates remaining at the bottom of the flocculation bin 1 are pushed into the receiving bin 2 by the scrapers 85, avoiding the problem of residue of flocculants in a traditional static flocculation tank, thereby improving the discharge effect of the flocculants.

[0028] The recycling member 9 includes a separation net 91 arranged in the receiving bin 2. A discharge port 92 is formed in the receiving bin 2. A recycling pipe 93 is arranged on the receiving bin 2. A water pump 94 is arranged on the receiving bin 2. The water pump 94 is communicated with the recycling pipe 93. A circulation pipe 95 is arranged on the water pump 94. The circulation pipe 95 is communicated with the flocculation bin 1. At the same time, the separation net 91 in the receiving bin 2 can separate the wastewater brought in by the flocculants. The separated wastewater is re-discharged into the flocculation bin 1 under the drive of the water pump 94, the recycling pipe 93 and the circulation pipe 95. The advantage of the setting of the recycling member 9 is that it can filter the discharged flocculants, separate the wastewater and then send it back to the flocculation bin 1 for purification, and at the same time, it is more convenient for the precipitated flocculants to be processed in the next step.

[0029] The floating matter collection unit 10 includes a collection member 11 arranged on the pushing block 83. The collection member 11 is used to collect the non-precipitating flocculants in the wastewater. A discharging member 12 is arranged on the collection member 11. The discharging member 12 is used to discharge the collected flocculants out of the flocculation bin 1.

[0030] The collection member 11 includes a connection block 111 disposed on the pushing block 83. A rotating ring 112 is rotatably disposed on the connection block 111. A collection bin 113 is disposed on the rotating ring 112. Capture grooves 114 are disposed on both sides of the collection bin 113. A filter plate 115 that cooperates with the capture grooves 114 is rotatably disposed in the collection bin 113. While the discharge plate 1-3 moves, it drives the connection block 111 and the connection ring 13 connected thereto to move synchronously. While the connection ring 13 moves, it drives the collection bin 113 to move synchronously. While the collection bin 113 moves, it rotates around the reciprocating lead screw 61 under the drive of the water flow. When the collection bin 113 rotates, the filter plate 115 disposed on one side thereof will deflect and open under the action of the water flow, while the filter plate 115 on the other side remains closed under the restriction of the capture grooves 114. When the collection bin 113 rotates around the reciprocating lead screw 61, the intelligent opening and closing of the filter plate 115 is realized by using the impact of the water flow. The filter plate 115 on the open side automatically deflects through the water power to form a filtering channel, and the closed side remains closed by means of the capture grooves 114 to form a one-way filtering path. This self-adjusting system can adapt to different flow rate conditions to ensure stable filtering efficiency. When the wastewater flows through the collection bin 113, the flocculants are left behind while the wastewater is discharged. Moreover, the collection bin 113 simultaneously performs axial movement and rotational movement, and covers a larger filtering area through the composite movement trajectory. The spiral movement of the reciprocating lead screw 61 and the cooperation of the water flow effectively prevent the flocculants from accumulating on the surface of the filter plate 115 and reduce the risk of blockage. By driving the collection bin 113 to move in the wastewater, the non-precipitating flocculants in the wastewater can be collected. Traditional fixed collection devices may not be able to completely capture the non-precipitating flocculants in the wastewater. These flocculants may move with the water flow rather than completely precipitate and eventually enter the subsequent treatment unit. Since the flocculants themselves may contain various pollutants, if they are not effectively precipitated and removed, it will affect the overall water quality purification effect.

[0031] The discharge member 12 includes a discharge groove 121 formed 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 unfolding gear 126 is provided on the rotating shaft 123. A positioning plate 127 is provided on the collection bin 113. A trigger rod 128 is slidably provided on the positioning plate 127. An unfolding rack 129 meshing with the unfolding gear 126 is provided on the trigger rod 128. A limiting plate one 1210 and a limiting plate two 1211 are provided on the trigger rod 128. A return spring 1212 is sleeved on the trigger rod 128 between the limiting plate two 1211 and the positioning plate 127. A protective tube 1213 is provided on the positioning plate 127. The protective tube 1213 is slidably connected to the limiting plate two 1211. A trigger ring 1214 cooperating with the trigger rod 128 is provided in the flocculation bin 1. When discharging is required, the collection bin 113 and the trigger rod 128 provided on the collection bin 113 will descend under the drive of the discharge plate one 3. 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 triggers an action only when the collection bin 113 descends to a preset height. This mechanical position switch replaces the electronic sensor, avoiding false triggering caused by sewage corrosion or impurity interference. The unfolding rack 129 connected to the trigger rod 128 moves synchronously, and the movement of the unfolding rack 129 drives the unfolding gear 126 to rotate synchronously. While the unfolding 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, and the collected flocs are discharged.

[0032] Embodiment 2: Please refer to Figure 11 , the present invention provides a technical solution: A connecting ring 13 is provided on the rotating ring 112. A rotating blade 14 is provided on the connecting ring 13. When the rotating blade 14 rises and falls, the water flow pushes the rotating blade 14 to rotate, thereby driving the connecting ring 13 and the rotating ring 112 to rotate synchronously, and further driving the collection bin 113 to rotate in the wastewater, so as to improve the collection effect of the collection bin 113 on floating flocs.

[0033] It should be noted that in this text, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A printing sewage treatment device, comprising a flocculation bin (1) and a receiving bin (2), characterized in that: It also includes a first discharge plate (3) and a second discharge plate (4) slidably arranged in the flocculation bin (1), and the first discharge plate (3) and the second discharge plate (4) are rotatably connected. A discharge driving unit (5) connected to the first discharge plate (3) and the second discharge plate (4) is also arranged in the flocculation bin (1), and a floating matter collection unit (10) is arranged on the discharge driving unit (5) for collecting and discharging the flocculants that are difficult to precipitate in the wastewater.

2. The printing sewage treatment equipment according to claim 1, characterized in that: The discharge driving unit (5) includes a separator (6) and a discharge member (7) arranged in the flocculation bin (1). The separator (6) separates the flocculants precipitated at the bottom of the flocculation bin (1) from the wastewater in the flocculation bin (1), and the discharge member (7) discharges the separated precipitated flocculants from the flocculation bin (1) into the receiving bin (2). A scraping member (8) is also arranged in the flocculation bin (1), and a recovery member (9) is arranged in the receiving bin (2).

3. The printing sewage treatment equipment according to claim 2, characterized in that: The separator (6) includes a reciprocating lead screw (61) rotatably arranged in the receiving bin (2) and threadedly connected to the first discharge plate (3). A limiting groove (62) is formed in the flocculation bin (1), and a limiting rod (63) slidably connected to the side wall of the limiting groove (62) is arranged on the first discharge plate (3). A communicating moving groove (64) and a first spiral groove (65) are formed in the flocculation bin (1). A pushing rod (66) is arranged on the second discharge plate (4), and the pushing rod (66) is slidably connected to the side walls of the moving groove (64) and the first spiral groove (65). A power motor (67) with a power output end connected to the reciprocating lead screw (61) is arranged on the flocculation bin (1).

4. The printing sewage treatment equipment according to claim 3, characterized in that: The discharge member (7) includes a discharge groove (71) and a receiving groove (72) formed in the bottom of the flocculation bin (1) and communicating with each other. Both sides of the discharge groove (71) are respectively communicated with the flocculation bin (1) and the receiving bin (2). A bidirectional lead screw (74) is rotatably arranged on one side of the receiving groove (72), and a closing plate (73) slidably connected to the side wall of the receiving groove (72) is threadedly installed on the bidirectional lead screw (74). A sliding rod (75) is rotatably arranged 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) with a power output end connected to the bidirectional lead screw (74) is arranged in the receiving groove (72).

5. The printing sewage treatment equipment according to claim 4, wherein: The scraping member (8) includes a rotating tube (81) rotatably arranged at the bottom of the flocculation bin (1) and internally provided with a second spiral groove (82). A pushing block (83) penetrating through the second discharge plate (4) and slidably connected to the second discharge plate (4) is arranged on the first discharge plate (3). The pushing block (83) is slidably connected to the reciprocating lead screw (61), and a driving rod (84) is arranged on the pushing block (83). The driving rod (84) is movably inserted into the second spiral groove (82). Scrapers (85) in contact with the bottom of the flocculation bin (1) are arranged on both sides of the rotating tube (81).

6. The printing sewage treatment equipment according to claim 5, wherein: The recovery member (9) includes a discharge port (92), a recovery pipe (93), a water pump (94), and a separation net (91). The water pump (94) is communicated with the recovery pipe (93). A circulation pipe (95) is arranged on the water pump (94), and the circulation pipe (95) is communicated with the flocculation bin (1).

7. The printing sewage treatment equipment according to claim 6, characterized in that: The floating matter collection unit (10) includes a collection member (11) arranged on the pushing block (83). A discharge member (12) is arranged on the collection member (11). The collection member (11) collects the non-precipitating flocculants in the wastewater, and the discharge member (12) discharges the collected flocculants out of the flocculation bin (1).

8. The printing sewage treatment equipment according to claim 7, characterized in that: The collection member (11) includes a connecting block (111) arranged on the pushing block (83). A rotating ring (112) is rotatably arranged on the connecting block (111). A collection bin (113) with capture grooves (114) opened on both sides is arranged on the rotating ring (112), and a filter plate (115) which is matched with the capture grooves (114) is rotatably arranged in the collection bin (113).

9. The printing sewage treatment equipment according to claim 8, characterized in that: The discharge member (12) includes a discharge groove (121) opened at the bottom of the collection bin (113). A fixing block (122) is arranged on the collection bin (113). A rotating shaft (123) is rotatably arranged on the fixing block (122). A torsion spring (124) connected with the fixing block (122) is arranged on the rotating shaft (123). A sealing plate (125) is arranged on the rotating shaft (123). An unfolding gear (126) is arranged on the rotating shaft (123). A positioning plate (127) is arranged on the collection bin (113). A trigger rod (128) is slidably arranged on the positioning plate (127). An unfolding rack (129) meshed with the unfolding gear (126) is arranged on the trigger rod (128). A limiting plate one (1210) and a limiting plate two (1211) are arranged on the trigger rod (128). A reset spring (1212) is sleeved between the limiting plate two (1211) and the positioning plate (127) on the trigger rod (128). A protection pipe (1213) slidably connected with the limiting plate two (1211) is arranged on the positioning plate (127). A trigger ring (1214) matched with the trigger rod (128) is arranged in the flocculation bin (1).

10. The printing sewage treatment equipment according to claim 8, characterized in that: A connecting ring (13) is arranged on the rotating ring (112), and rotating blades (14) are arranged on the connecting ring (13).

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