Corrugated paper printing wastewater treatment equipment

Abstract

The invention discloses corrugated paper printing wastewater treatment equipment, and particularly relates to the technical field of wastewater treatment.The corrugated paper printing wastewater treatment equipment comprises a treatment cylinder, a water inlet valve is fixedly connected to the upper end of the treatment cylinder, a pretreatment structure is arranged on the upper portion of the inner surface of the treatment cylinder, and a separation structure is arranged in the middle of the inner surface of the treatment cylinder; an ultrafiltration structure is arranged at the lower part of the inner surface of the treatment cylinder. According to the corrugated paper printing wastewater treatment equipment disclosed by the invention, sewage is stirred through the buffering and stirring effects of the pretreatment structure, and substances such as corrugated paper fibers and printing ink in the sewage are separated out into solid suspended matters in cooperation with a flocculating agent fed by the feeding device and the feeding pipe, and the solid suspended matters are fed into the separation structure; sewage, oily substances and solid waste are separated through the separation effect of the separation structure, the proportion of insoluble substances in the sewage is reduced, the sewage is fed into the ultrafiltration structure for further adsorption and filtration treatment through the cooperation of the separation structure and the ultrafiltration structure, and the content of inorganic pollutants in the sewage is reduced.

Description

Technical Field

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

[0002] The technical field of wastewater treatment includes various treatment directions such as industrial wastewater treatment and domestic sewage purification. Its core content is to purify the polluted water body through physical, chemical, and biological methods, remove harmful substances, impurities, and pollutants therein, and make the water quality meet the specified discharge standards or reuse requirements to achieve the sustainable utilization of water resources and environmental protection.

[0003] Among them, corrugated paper printing wastewater treatment refers to the treatment of wastewater containing pollutants such as corrugated paper fibers and ink generated during the printing process of corrugated paper.

[0004] Currently, conventional treatment methods mostly use simple means such as precipitation and filtration. For example, a corrugated paper printing wastewater treatment device disclosed in Chinese Patent Publication No. CN207608469U includes a wastewater collection tank, an acid precipitation air flotation tank, a flocculation sedimentation tank, an alkaline reaction tank, an anaerobic reaction tank, a disinfection tank, and a reservoir connected in sequence by a pipeline with a suction pump.

[0005] However, the prior art is difficult to effectively separate substances such as corrugated paper box fibers and ink in the sewage, and it is also unable to fully remove inorganic pollutants in the sewage; and during the treatment process, the buffering and flocculation reactions of the wastewater are not sufficient, resulting in poor precipitation effects of suspended substances and ink components;

[0006] At the same time, in the oil-water separation and further filtration and adsorption links, there is a lack of efficient separation and treatment means, resulting in low overall treatment efficiency, high working pressure on the subsequent treatment filter materials, and short maintenance cycles. Summary of the Invention

[0007] The main purpose of the present invention is to provide a corrugated paper printing wastewater treatment device, which can effectively solve the problems involved in the above background art.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0009] A corrugated paper printing wastewater treatment device includes a treatment cylinder. A waste material box is fixedly connected to the outer surface of the treatment cylinder. An outlet valve is fixedly connected to the lower part of the outer surface of the treatment cylinder. An inlet valve is fixedly connected to the upper end of the treatment cylinder. A pretreatment structure is arranged on the upper part of the inner surface of the treatment cylinder. A separation structure is arranged in the middle of the inner surface of the treatment cylinder. A ultrafiltration structure is arranged on the lower part of the inner surface of the treatment cylinder.

[0010] Preferably, a driving motor is fixedly connected to the bottom wall of the inner cavity of the processing cylinder through a motor bracket. A central driving column, which is rotationally connected to the bottom wall of the inner surface of the processing cylinder and is belt-drivenly connected to the waste bin, is provided. A feeder is fixedly connected to the bottom wall of the inner surface of the processing cylinder. The output end of the feeder is fixedly connected to a feeding pipe that communicates with the pretreatment structure. A fuel tank is fixedly connected to the bottom wall of the inner surface of the processing cylinder. A liquid slip ring, which is rotationally connected to the lower part of the inner surface of the central driving column and is fixedly connected to the fuel tank through a pipeline, is provided. A bottom plate is fixedly connected to the lower part of the inner surface of the processing cylinder below the water outlet valve.

[0011] Preferably, the pretreatment structure includes a buffer block located on the top wall of the inner cavity of the processing cylinder. A spiral water channel, which communicates with the upper end and the lower end, is opened on the upper end of the buffer block. A partition plate I is fixedly connected to the lower end of the buffer block. A communication port, which communicates with the upper end and the lower end, is opened on the upper end of the partition plate I. A stirring assembly is arranged at the lower end of the partition plate I. The path of the spiral water channel is spiral, and its upper side communicates with the water inlet valve and its lower side communicates with the communication port. A partition plate III is fixedly connected to the part of the inner surface of the processing cylinder below the stirring assembly. A magnetically controlled valve, which communicates with the upper end and the lower end, is arranged at the upper end of the partition plate III. The inner surfaces of the partition plate I and the stirring assembly are both rotationally connected to the outer surface of the central driving column.

[0012] Preferably, the stirring assembly includes a cross-shaped support plate fixedly connected to the central driving column. A plurality of stirring shafts are fixedly connected to the lower end of the cross-shaped support plate in a circular distribution. The upper ends of the plurality of stirring shafts all penetrate through the lower end of the cross-shaped support plate and extend to the upper end of the cross-shaped support plate and are fixedly connected to a gear I. A chute is opened at the lower end of the partition plate I. A toothed ring I, which meshes with the adjacent gear I, is fixedly connected to the inner surface of the chute.

[0013] Preferably, the separation structure includes a partition plate II fixedly connected to the inner surface of the processing cylinder below the partition plate III. A flotation assembly is arranged on the part of the outer surface of the central driving column between the partition plate II and the partition plate III. An annular groove, which communicates with the upper and lower sides of the partition plate II, is opened on the inner surface of the central driving column. A filter screen is fixedly connected to the upper part of the inner surface of the annular groove. An electromagnetic valve, which communicates with the waste bin, is opened on the part of the inner surface of the processing cylinder above the partition plate II. A plurality of scraping plates, which are in close contact with the outer surface of the filter screen, are fixedly connected to the upper end of the partition plate II in a circular distribution.

[0014] Preferably, a communication cavity is opened on the part of the central driving column inside the flotation assembly. An oil delivery pipe, which penetrates through the central driving column and extends to the height where the liquid slip ring is located, is opened on the bottom wall of the inner cavity of the communication cavity. The oil delivery pipe communicates with the inner cavity of the liquid slip ring through a through hole opened on the outer surface of the central driving column.

[0015] Preferably, the flotation assembly includes a baffle plate slidably connected to the outer surface of the central drive column through a limiting groove. A number of communication grooves I communicating with the inner surface are annularly distributed on the outer surface of the baffle plate. A hollow ring is fixedly connected to the lower part of the outer surface of the baffle plate. A number of communication grooves II corresponding to the communication grooves I in the vertical direction are annularly distributed on the inner surface of the communication cavity.

[0016] Preferably, the ultrafiltration structure includes a hollow plate fixedly connected to the inner surface of the treatment cylinder. A filter layer is fixedly installed at the upper end of the hollow plate. A water distribution assembly is arranged on the part of the outer surface of the central drive column above the filter layer.

[0017] Preferably, the water distribution assembly includes a rotating disk sleeved on the outer surface of the oil delivery pipe and rotatably connected to the central drive column. A second toothed ring is fixedly connected to the lower end of the rotating disk. A second gear is meshed with the outer surface of the second toothed ring. A small motor installed on the inner surface of the central drive column is fixedly connected to the lower end of the second gear. A number of water outlet holes communicating with the inner surface are annularly distributed on the outer surface of the rotating disk. The upper part of the inner cavity of the rotating disk communicates with the annular groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention uses a water inlet valve to convey sewage inward, and stirs the sewage through the buffering and stirring effects of the pretreatment structure. In cooperation with the flocculant input by the feeder and the feeding pipe, substances such as corrugated paper fibers and ink in the sewage are precipitated into solid suspended matters and sent into the separation structure. Through the separation effect of the separation structure, sewage, oily substances and solid waste are separated, reducing the proportion of insoluble substances in the sewage. Further, through the cooperation of the separation structure and the ultrafiltration structure, the separated sewage is sent into the ultrafiltration structure for further adsorption and filtration treatment, reducing the content of inorganic pollutants in the sewage and facilitating subsequent further treatment.

[0020] 2. The present invention uses the spiral water channel opened in the buffer block to buffer the sewage sent by the water inlet valve, so that it forms a continuous water flow into the upper part of the partition plate III. Further, the driving motor is used to drive the central drive column to drive the cross support plate to rotate. The cooperation of the first gear and the first toothed ring drives the stirring shaft to revolve and rotate simultaneously above the partition plate III, stirring the sewage above the partition plate III, thereby promoting the full reaction of the sewage with the flocculant input by the feeder and the feeding pipe, and prompting the precipitation of suspended matters and some ink components therein to form agglomerated suspended matters, which is convenient for subsequent separation.

[0021] 3. The present invention separates solid waste, oil stains and water through the functions of the flotation assembly and the filter screen, thereby converting the waste water mixed with oil stains and solids into pure water, reducing the content ratio of insoluble substances in the water, separating these sundries, improving the subsequent treatment efficiency and reducing the working pressure of the subsequent treatment filter media, extending the maintenance period and increasing the service life.

[0022] 4. The present invention sends the separated water body into the filter layer by spraying through the function of the water distribution assembly. Through the distribution function of the water distribution assembly, the water body is evenly sprayed above the filter layer and fully contacts with the filter media in the filter layer, promoting the reaction between the activated carbon particles in the filter media and the water body, adsorbing small molecule particles such as organic nutrients and inorganic pollutants in the water body, and further separating the solid particle waste contained therein through the stacked filter media, reducing the content ratio of pollutants in the water body, realizing the basic treatment process of sewage and simplifying the overall treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a schematic sectional structure diagram of the treatment cylinder of the present invention;

[0025] Figure 3 is a schematic diagram of the positional relationship between the liquid slip ring and the oil delivery pipe of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the pretreatment structure of the present invention;

[0027] Figure 5 is a schematic diagram of the structure of the stirring assembly of the present invention;

[0028] Figure 6 of the present invention Figure 5 is an enlarged schematic diagram of the partial structure at A;

[0029] Figure 7 is a schematic diagram of the structure of the separation structure of the present invention;

[0030] Figure 8 is a schematic sectional structure diagram of the separation structure of the present invention;

[0031] Figure 9 of the present invention Figure 8 is an enlarged schematic diagram of the partial structure at B;

[0032] Figure 10 is a schematic diagram of the structure of the ultrafiltration structure of the present invention;

[0033] Figure 11 is a schematic diagram of the structure of the water distribution assembly of the present invention.

[0034] In the figure: 1. Water outlet valve; 2. Treatment cylinder; 21. Feeder; 22. Feeding pipe; 23. Central driving column; 24. Driving motor; 25. Oil storage tank; 26. Bottom plate; 27. Liquid slip ring; 3. Water inlet valve; 4. Waste box; 5. Pretreatment structure; 51. Buffer block; 52. Spiral water channel; 53. Partition plate 1; 54. Stirring assembly; 541. Cross support plate; 542. Stirring shaft; 543. Chute; 544. Gear 1; 545. Tooth ring 1; 55. Communication port; 56. Partition plate 3; 6. Separation structure; 61. Partition plate 2; 62. Flotation assembly; 621. Baffle; 622. Communication groove 1; 623. Hollow ring; 63. Filter screen; 64. Solenoid valve; 65. Oil pipeline; 66. Communication cavity; 661. Communication groove 2; 67. Annular groove; 68. Scraper; 7. Ultrafiltration structure; 71. Hollow plate; 72. Filter layer; 73. Water distribution assembly; 731. Small motor; 732. Gear 2; 733. Tooth ring 2; 734. Rotating disc; 735. Water outlet hole. Detailed implementation manners

[0035] To make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0036] Example 1, as Figure 1 and Figure 2 shown, a corrugated paper printing wastewater treatment device includes a treatment cylinder 2, a waste box 4 is fixedly connected to the outer surface of the treatment cylinder 2, a water outlet valve 1 is fixedly connected to the lower part of the outer surface of the treatment cylinder 2, a water inlet valve 3 is fixedly connected to the upper end of the treatment cylinder 2, a pretreatment structure 5 is arranged on the upper part of the inner surface of the treatment cylinder 2, a separation structure 6 is arranged in the middle of the inner surface of the treatment cylinder 2, and an ultrafiltration structure 7 is arranged on the lower part of the inner surface of the treatment cylinder 2.

[0037] During the printing process of corrugated paper boxes, a lot of ink and corrugated paper fibers will be stained on the printing plate of the printer. During long-term use, it is necessary to periodically clean the printing plate of the printer. The wastewater generated by the cleaning includes water-insoluble organic matters such as suspended solid particles and ink binders, and residual soluble organic matters. If these components are directly discharged without treatment, they will cause serious pollution to the water body and affect the ecological environment and human health.

[0038] Further, to drive the pretreatment structure 5 and the separation structure 6 to realize the treatment of the printer cleaning wastewater, refer to Figure 2 and Figure 3, a driving motor 24 is fixedly connected to the bottom wall of the inner cavity of the treatment cylinder 2 through a motor bracket. A central driving column 23, which is rotationally connected to the bottom wall of the inner surface of the treatment cylinder 2 and is belt-drivenly connected to the waste material box 4, is rotationally connected to the bottom wall of the inner surface of the treatment cylinder 2. A feeder 21 is fixedly connected to the bottom wall of the inner surface of the treatment cylinder 2. The output end of the feeder 21 is fixedly connected to a feeding pipe 22 that communicates with the pretreatment structure 5. An oil storage tank 25 is fixedly connected to the bottom wall of the inner surface of the treatment cylinder 2. A liquid slip ring 27, which is rotationally connected to the lower part of the inner surface of the central driving column 23 and is fixedly connected to the oil storage tank 25 through a pipeline, is rotationally connected to the lower part of the inner surface of the central driving column 23. A bottom plate 26 is fixedly connected to the lower part of the inner surface of the treatment cylinder 2 below the water outlet valve 1.

[0039] It should be specifically noted that the above-mentioned feeder 21 is a basic feeding device with a built-in feeding pump, which can feed polyaluminum chloride and polyacrylamide into the pretreatment structure 5 through the feeding pipe 22 as flocculants to assist the oily components and suspended solids in the sewage to precipitate in lumps. This structure has been widely used in the prior art. In the present invention, only its function of feeding sewage is utilized, and its internal structure, operating principle, wiring, and control method will not be elaborated further.

[0040] During the operation of this embodiment, sewage is conveyed inward through the water inlet valve 3, and the sewage is agitated through the buffering and stirring actions of the pretreatment structure 5. In cooperation with the flocculants fed by the feeder 21 and the feeding pipe 22, substances such as corrugated cardboard fibers and ink in the sewage are precipitated into solid suspended solids and sent into the separation structure 6. Through the separation action of the separation structure 6, the sewage, oily substances, and solid waste are separated, reducing the proportion of insoluble substances in the sewage. Further, through the cooperation of the separation structure 6 and the ultrafiltration structure 7, the separated sewage is sent into the ultrafiltration structure 7 for further adsorption and filtration treatment, reducing the content of inorganic pollutants in the sewage and facilitating subsequent further treatment.

[0041] Embodiment 2: On the basis of Embodiment 1, this embodiment uses the spiral water channel 52 opened in the buffer block 51 to buffer the sewage fed by the water inlet valve 3, so that it forms a continuous water flow into the upper part of the partition plate three 56. Further, the driving motor 24 drives the central driving column 23 to drive the cross support plate 541 to rotate. By using the cooperation of the gear one 544 and the tooth ring one 545, the stirring shaft 542 rotates around its own axis while revolving above the partition plate three 56, agitating the sewage above the partition plate three 56. Thereby, it promotes the full reaction of the sewage with the flocculants fed by the feeder 21 and the feeding pipe 22, and promotes the precipitation of suspended solids and some ink components therein to form agglomerated suspended solids, facilitating subsequent separation.

[0042] Specifically, to realize the mixing of sewage and flocculants, thereby promoting the precipitation of ink components, suspended solids, and fiber components in the water body, refer to Figure 4, the pretreatment structure 5 includes a buffer block 51 located on the top wall of the inner cavity of the treatment cylinder 2. A spiral water channel 52 communicating with the lower end is opened at the upper end of the buffer block 51. A first isolation plate 53 is fixedly connected to the lower end of the buffer block 51. A communication port 55 communicating with the lower end is opened at the upper end of the first isolation plate 53. A stirring assembly 54 is arranged at the lower end of the first isolation plate 53. The path of the spiral water channel 52 is spiral, and its upper side communicates with the water inlet valve 3 and its lower side communicates with the communication port 55. A third isolation plate 56 is fixedly connected to the part of the inner surface of the treatment cylinder 2 below the stirring assembly 54. A magnetically controlled valve communicating with the lower end is arranged at the upper end of the third isolation plate 56. The inner surfaces of the first isolation plate 53 and the stirring assembly 54 are both rotatably connected to the outer surface of the central driving column 23.

[0043] The spiral water channel 52 is used to buffer the sewage sent by the water inlet valve 3 and make it flow upward above the third isolation plate 56 in a spiral path. During the flowing process, due to the action of the spiral path of the spiral water channel 52, the water body will bear a slight centrifugal force, and the effect of this part of the centrifugal force on the solid waste will be more obvious, prompting the solid waste to move to the outer side of the spiral and initially agglomerate, providing a core for subsequent flocculation.

[0044] The third isolation plate 56 is used to isolate the reaction environment between the separation structure 6 and the pretreatment structure 5. The magnetically controlled valve arranged on its upper part can be opened after the flocculation operation is completed, enabling the sewage treated by the flocculant to enter the lower separation structure 6 for further separation treatment.

[0045] Furthermore, to realize the stirring of the water body and the flocculant, refer to Figure 5 and Figure 6 , the stirring assembly 54 includes a cross support plate 541 fixedly connected to the central driving column 23. A plurality of stirring shafts 542 are fixedly connected in a circular distribution at the lower end of the cross support plate 541. The upper ends of the plurality of stirring shafts 542 all penetrate through the lower end of the cross support plate 541 and extend to the upper end of the cross support plate 541 and are fixedly connected with a first gear 544. A chute 543 is opened at the lower end of the first isolation plate 53. A first toothed ring 545 meshing with the adjacent first gear 544 is fixedly connected to the inner surface of the chute 543.

[0046] During the rotation of the central drive column 23, the cross support plate 541 will be driven to rotate synchronously. When the cross support plate 541 rotates, the stirring shaft 542 will revolve around the central drive column 23. Synchronously, during the revolution of the stirring shaft 542, the first gear 544 on its upper part also revolves around the axis of the central drive column 23. However, since the first gear 544 is engaged with the first tooth ring 545, when the first gear 544 revolves, the first tooth ring 545 is stationary, which will cause the first gear 544 to rotate self - rotatably under the meshing action, thereby driving the stirring shaft 542 to rotate self - rotatably. As a result, during the operation of the stirring shaft 542, the sewage above the third partition plate 56 is continuously stirred, promoting the full reaction of the flocculant input by the feeding pipe 22 with the sewage, and improving the flocculation efficiency and reaction effect.

[0047] Embodiment 3: On the basis of Embodiment 2, this embodiment further utilizes the functions of the flotation assembly 62 and the filter screen 63 to separate solid wastes, oil stains and water bodies, thereby converting the oil - stained and solid - mixed wastewater into pure water bodies, reducing the content ratio of insoluble substances in the water, separating these sundries, improving the subsequent treatment efficiency and reducing the working pressure of the subsequent treatment filter materials, extending the maintenance period and increasing the service life.

[0048] Specifically, to achieve the separation of oil stains, sewage and solid wastes, refer to Figure 7 、 Figure 8 and Figure 10 . The separation structure 6 includes a second partition plate 61 located below the third partition plate 56 and fixedly connected to the inner surface of the treatment cylinder 2. A flotation assembly 62 is arranged on the outer surface of the central drive column 23 between the second partition plate 61 and the third partition plate 56. An annular groove 67 communicating with the upper and lower sides of the second partition plate 61 is formed on the inner surface of the central drive column 23. A filter screen 63 is fixedly connected to the upper part of the inner surface of the annular groove 67. An electromagnetic valve 64 communicating with the waste bin 4 is formed on the inner surface of the treatment cylinder 2 above the second partition plate 61. The separated solids staying on the upper side of the second partition plate 61 are discharged into the waste bin 4 through the electromagnetic valve 64. A plurality of scraping plates 68 tightly attached to the outer surface of the filter screen 63 are annularly distributed and fixedly connected to the upper end of the second partition plate 61.

[0049] After the water body enters the upper part of the second partition plate 61, the solid wastes will precipitate on the upper end of the second partition plate 61, and the oil stains will float on the upper part and drive the flotation assembly 62 to rise through buoyancy. The oil stains enter the communication cavity 66 through the flotation assembly 62 and finally enter the oil storage tank 25 through the oil delivery pipe 65 and the liquid slip ring 27 for temporary storage;

[0050] The water body then enters the annular groove 67 through the filter screen 63. Further, during the rotation of the central drive column 23, the scraping plates 68 arranged on the second partition plate 61 continuously clean the filter screen 63, promoting the water body to slowly and continuously pass through the filter screen 63 into the annular groove 67 and thus enter the water distribution assembly 73.

[0051] Further, to achieve the separation of oil stains, refer to Figure 9 and Figure 10 , a communication cavity 66 is provided in the part of the central drive column 23 located inside the flotation assembly 62. An oil pipeline 65 is provided on the bottom wall of the inner cavity of the communication cavity 66, which penetrates through the central drive column 23 and extends to the height where the liquid slip ring 27 is located. The oil pipeline 65 is communicated with the inner cavity of the liquid slip ring 27 through a through hole provided on the outer surface of the central drive column 23;

[0052] Refer to Figure 9 , the flotation assembly 62 includes a baffle 621 slidably connected to the outer surface of the central drive column 23 through a limit groove. A number of communication grooves one 622 communicating with its inner surface are annularly distributed on the outer surface of the baffle 621. A hollow ring 623 is fixedly connected to the lower part of the outer surface of the baffle 621. A number of communication grooves two 661 corresponding to the communication grooves one 622 in the vertical direction are annularly distributed on the inner surface of the communication cavity 66.

[0053] The hollow ring 623 can drive the baffle 621 to rise under the action of the buoyancy of the water body, so that the communication groove one 622 is communicated with the communication groove two 661, prompting the oil stains floating on the upper layer to enter the communication cavity 66 through the communication groove one 622 and the communication groove two 661, and enter the oil pipeline 65 through the communication cavity 66, and enter the storage oil tank 25 through the liquid slip ring 27 communicated with the oil pipeline 65 for temporary storage.

[0054] Embodiment 4. On the basis of Embodiment 3, this embodiment uses the water equalizing assembly 73 to send the separated water body into the filter layer 72 by spraying. Through the distribution function of the water equalizing assembly 73, the water body is evenly sprayed above the filter layer 72 and fully contacts the filter media in the filter layer 72, prompting the activated carbon particles in the filter media to react with the water body, adsorb small molecule particles such as organic nutrients and inorganic pollutants in the water body, and further separate the solid particle wastes contained therein through the stacked filter media, reducing the proportion of pollutants in the water body and realizing the basic treatment process of sewage, and simplifying the overall treatment process.

[0055] Specifically, to further adsorb inorganic salts and organic matters in the sewage water body, refer to Figure 10 and Figure 11 , the ultrafiltration structure 7 includes a hollow plate 71 fixedly connected to the inner surface of the treatment cylinder 2. A filter layer 72 is fixedly installed at the upper end of the hollow plate 71. A water equalizing assembly 73 is provided on the outer surface of the central drive column 23 above the filter layer 72.

[0056] The filter layer 72 is filled with honeycomb-structured activated carbon, polyurethane foam, and peat, which can adsorb organic nutrients, small molecular particles, and some inorganic pollutants in water. The honeycomb structure can provide more adsorption sites and improve the adsorption efficiency. Biofilter materials such as polyurethane foam and peat can further degrade pollutants through the metabolic action of microorganisms, thereby achieving the adsorption and separation of small molecular pollutants in water.

[0057] Further, in order to evenly spray the water body on the upper side of the filter layer 72, increase the contact range between the water body and the filter layer 72, and improve the reaction efficiency, refer to Figure 11 , the water distribution component 73 includes a rotating disk 734 sleeved on the outer surface of the oil delivery pipe 65 and rotatably connected to the central drive column 23. A second toothed ring 733 is fixedly connected to the lower end of the rotating disk 734. A second gear 732 is meshed with the outer surface of the second toothed ring 733. A small motor 731 installed on the inner surface of the central drive column 23 is fixedly connected to the lower end of the second gear 732. A number of water outlet holes 735 communicating with its inner surface are annularly distributed on the outer surface of the rotating disk 734. The upper part of the inner cavity of the rotating disk 734 is communicated with the annular groove 67.

[0058] The small motor 731 drives the second gear 732 to rotate, and then drives the rotating disk 734 to rotate through the meshing action of the second gear 732 and the second toothed ring 733, thereby shaking the sewage sent down from the annular groove 67. Due to the centrifugal force generated by the rotation of the rotating disk 734, the sewage is forced to approach the inner wall of the rotating disk 734 and is sprayed out through the water outlet holes 735, forming an arc-shaped water curtain between the filter layer 72 and the second partition plate 61. By controlling the rotation speed of the small motor 731, the water curtain covers different positions on the filter layer 72, thereby promoting full contact between the water body and the filter material and improving the adsorption efficiency.

[0059] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A corrugated paper printing wastewater treatment device, comprising a treatment cylinder (2), the outer surface of which is fixedly connected to a waste box (4), characterized in that: The lower portion of the outer surface of the treatment cylinder (2) is fixedly connected to a water outlet valve (1), the upper end of the treatment cylinder (2) is fixedly connected to a water inlet valve (3), the upper portion of the inner surface of the treatment cylinder (2) is provided with a pretreatment structure (5), the middle portion of the inner surface of the treatment cylinder (2) is provided with a separation structure (6), and the lower portion of the inner surface of the treatment cylinder (2) is provided with an ultrafiltration structure (7).

2. A corrugated paper printing wastewater treatment equipment according to claim 1, characterized in that: The bottom wall of the inner cavity of the treatment cylinder (2) is fixedly connected to a driving motor (24) via a motor bracket; the bottom wall of the inner surface of the treatment cylinder (2) is rotatably connected to a central driving column (23) connected to a waste box (4) via a belt drive; the bottom wall of the inner surface of the treatment cylinder (2) is fixedly connected to a feeder (21); the output end of the feeder (21) is fixedly connected to a feeder pipe (22) connected to a pretreatment structure (5); the bottom wall of the inner surface of the treatment cylinder (2) is fixedly connected to an oil storage tank (25); the lower part of the inner surface of the central driving column (23) is rotatably connected to a liquid slip ring (27) fixedly connected to the oil storage tank (25) via a pipeline; and the lower part of the inner surface of the treatment cylinder (2) located below the water outlet valve (1) is fixedly connected to a bottom plate (26).

3. A corrugated paper printing wastewater treatment equipment according to claim 2, characterized in that: The pretreatment structure (5) comprises a buffer block (51) located on the top wall of the inner cavity of the treatment cylinder (2); a spiral water channel (52) communicating with the lower end is provided at the upper end of the buffer block (51); an isolation plate (53) is fixedly connected to the lower end of the buffer block (51); a connecting port (55) communicating with the lower end is provided at the upper end of the isolation plate (53); a stirring assembly (54) is provided at the lower end of the isolation plate (53); the spiral water channel (52) is spiral in shape, the upper side of which is connected to the water inlet valve (3) and the lower side is connected to the connecting port (55); an isolation plate (56) is fixedly connected to the portion of the inner surface of the treatment cylinder (2) located below the stirring assembly (54); a magnetic control valve communicating with the lower end is provided at the upper end of the isolation plate (56); the inner surface of the isolation plate (53) and the inner surface of the stirring assembly (54) are both rotatably connected to the outer surface of the central driving column (23).

4. A corrugated paper printing wastewater treatment equipment according to claim 3, characterized in that: The stirring assembly (54) comprises a cross support plate (541) fixedly connected to the central driving column (23); a plurality of stirring shafts (542) are fixedly connected to the lower end of the cross support plate (541) in an annular distribution; the upper ends of the plurality of stirring shafts (542) all pass through the lower end of the cross support plate (541) and extend to the upper end of the cross support plate (541) and are fixedly connected to a gear one (544); a slide groove (543) is provided at the lower end of the isolation plate one (53); a gear ring one (545) meshing with an adjacent gear one (544) is fixedly connected to the inner surface of the slide groove (543).

5. The corrugated paper printing wastewater treatment equipment according to claim 3, characterized in that: The separation structure (6) comprises an isolation plate 2 (61) located below the isolation plate 3 (56) and fixedly connected to the inner surface of the treatment cylinder (2); a flotation assembly (62) is provided on the outer surface of the central driving column (23) located between the isolation plate 2 (61) and the isolation plate 3 (56); an annular groove (67) is provided on the inner surface of the central driving column (23) and connected to the upper and lower sides of the isolation plate 2 (61); a filter screen (63) is fixedly connected to the upper portion of the inner surface of the annular groove (67); a solenoid valve (64) is provided on the inner surface of the treatment cylinder (2) located above the isolation plate 2 (61) and connected to the waste box (4); and a plurality of scrapers (68) are fixedly connected to the upper end of the isolation plate 2 (61) and are closely attached to the outer surface of the filter screen (63).

6. A corrugated paper printing wastewater treatment device according to claim 5, characterized in that: A connecting cavity (66) is provided at the inner side of the central driving column (23) of the flotation assembly (62); an oil delivery pipe (65) is provided on the bottom wall of the inner cavity of the connecting cavity (66) and passes through the central driving column (23) and extends to the height of the liquid slip ring (27); the oil delivery pipe (65) is connected to the inner cavity of the liquid slip ring (27) through a through hole provided on the outer surface of the central driving column (23).

7. A corrugated paper printing wastewater treatment device according to claim 6, characterized in that: The flotation assembly (62) comprises a baffle (621) slidably connected to the outer surface of the central driving column (23) via a limiting groove, the outer surface of the baffle (621) is provided with a plurality of connecting grooves 1 (622) in an annular distribution and connected to the inner surface thereof, a hollow ring (623) is fixedly connected to the lower portion of the outer surface of the baffle (621), and the inner surface of the connecting cavity (66) is provided with a plurality of connecting grooves 2 (661) in an annular distribution and corresponding to the connecting grooves 1 (622) in the vertical direction.

8. The corrugated paper printing wastewater treatment equipment according to claim 5, characterized in that: The ultrafiltration structure (7) comprises a hollow plate (71) fixedly connected to the inner surface of the treatment cylinder (2), a filter layer (72) being fixedly mounted on the upper end of the hollow plate (71), and a water homogenizing component (73) being arranged on the portion of the outer surface of the central driving column (23) located above the filter layer (72).

9. A corrugated paper printing wastewater treatment device according to claim 8, characterized in that: The water uniforming assembly (73) comprises a rotating disk (734) sleeved on the outer surface of the oil delivery pipe (65) and rotatably connected to the central driving column (23); a second gear ring (733) is fixedly connected to the lower end of the rotating disk (734); a second gear (732) is meshed on the outer surface of the second gear ring (733); a small motor (731) mounted on the inner surface of the central driving column (23) is fixedly connected to the lower end of the second gear (732); a plurality of water outlet holes (735) connected to the inner surface of the rotating disk (734) are arranged in an annular pattern on the outer surface of the rotating disk (734); and the upper part of the inner cavity of the rotating disk (734) is connected to the annular groove (67).

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