A printing sewage purification and treatment device

Abstract

The present invention relates to the technical field of sewage treatment, and specifically discloses a printing sewage purification and treatment device, which includes a box body, a drain pipe and a water inlet pipe fixedly connected to the outer wall of the box body. An aeration component is arranged in the box body, and the aeration component is used for introducing gas into the wastewater; it also includes a pressing-down component, which is used for pressing the floating bubbles back to the bottom of the wastewater, so that the bubbles repeatedly float in the wastewater; it also includes a sewage discharge component, which is used for discharging the flocs on the surface of the wastewater. By introducing bubbles into the wastewater through the aeration component, the present invention adsorbs the flocs generated by coagulation during the floating process of the bubbles in the wastewater, reduces their density and makes them float to the surface of the wastewater. At the same time, the pressing-down component is used to press the floating bubbles back to the bottom of the water again, so that the bubbles repeatedly float in the water, increasing the travel of the bubbles in the wastewater, enabling the bubbles and the flocs to fully contact and combine in the water, and enhancing the adsorption effect of the bubbles on the flocs.

Description

Technical Field

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

[0002] Printing sewage mainly refers to the wastewater containing various harmful substances generated during the printing production process. In order to reduce or eliminate these harmful substances and treat it into water quality meeting the discharge standards to protect the environment and human health, the commonly used treatment methods include physical treatment, chemical treatment, and biological treatment technologies. Among them, coagulation flotation is a common water treatment technology, mainly used to remove suspended solids, colloidal particles, and certain dissolved pollutants in water. This technology combines the two processes of coagulation and flotation to improve the removal efficiency of pollutants.

[0003] However, in the process of flotation in common coagulation flotation devices, gas is simply introduced into the wastewater. Since the bubbles generated in the wastewater have a small density, they will quickly float up and stay in the wastewater for too short a time, unable to effectively combine with the flocs generated after coagulation in the wastewater. As a result, the bubbles cannot attach to the flocs during the floating process, or only a small amount can attach to the flocs. Therefore, in order to improve the impurity removal effect, a high-power air pump needs to be used to introduce bubbles into the sewage over a large area, and a large-volume flotation tank is also required to hold the sewage and provide space for flotation treatment, resulting in waste of space and energy. Summary of the Invention

[0004] The purpose of the present invention is to provide a printing sewage purification and treatment device to solve at least one of the technical problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A printing sewage purification and treatment device includes a box body, a drain pipe and a water inlet pipe fixedly connected to the outer wall of the box body. An aeration component is arranged inside the box body, and the aeration component is used to introduce gas into the wastewater;

[0006] It further includes a pressing-down component, and the pressing-down component is used to press the floating bubbles back to the bottom of the wastewater to make the bubbles float up repeatedly in the wastewater;

[0007] It further includes a sewage discharge component, and the sewage discharge component is used to discharge the flocs on the surface of the wastewater.

[0008] Preferably, the pressing-down component includes two sliders and two sliding blocks slidably installed on the inner wall of the box body. A rotating shaft is rotatably installed between the two sliders, and two rotating plates are rotatably installed between the two sliding blocks. A plurality of sliding shaft seats are slidably installed on the outer walls of the two rotating plates. A connecting rod is rotatably connected between the sliding shaft seat and the rotating shaft, and a tension spring is also fixedly connected between the two rotating plates;

[0009] The pressing assembly further comprises a driving assembly, and the driving assembly is used for driving the sliding block to slide reciprocatingly up and down.

[0010] Preferably, the driving assembly comprises a sliding frame slidably mounted on the inner wall of the box and the top surface of which is fixedly connected to the bottom surface of the sliding block, a moving block is slidably mounted in the sliding frame, four sprockets are rotatably mounted on the inner wall of the box, a chain is transmission-connected between the four sprockets, and one of the pins of the chain is rotatably connected to the moving block;

[0011] The driving assembly further comprises a driving member, and the driving member is used to drive one of the sprockets to rotate at a constant speed or a variable speed.

[0012] Preferably, the driving member includes a cavity opened in the casing, a pulley coaxial with one of the sprockets is rotatably mounted on the inner wall of the cavity, a rotating shaft is also rotatably mounted on the inner wall of the cavity, two speed change wheels are provided on the outer wall of the rotating shaft, one of the speed change wheels is fixedly connected to the outer wall of the rotating shaft, and the other is slidably mounted on the outer wall of the rotating shaft, a spring is provided between the speed change wheel slidably mounted on the outer wall of the rotating shaft and a fixed ring on the outer wall of the rotating shaft, an electric control slider is slidably mounted in the empty groove opened on the inner wall of the cavity, a tensioning wheel is rotatably mounted on the side wall of the electric control slider, the pulley, the tensioning wheel and the speed change wheel are previously driven by a belt, and a motor for driving the rotating shaft to rotate is fixedly mounted on the outer wall of the casing.

[0013] Preferably, the sewage discharge assembly comprises a transmission shaft fixedly connected to the portion of the rotating shaft passing through the cavity, a spiral sheet is fixedly mounted on the outer wall of the transmission shaft, and a sewage discharge pipe for discharging floccules is disposed on the outer wall of the box body.

[0014] Preferably, the aeration assembly includes an air bag with one end fixedly mounted on the inner wall of the sliding frame, the other end of the air bag is fixedly connected to the side wall of the moving block, an annular member is rotatably mounted in a circular groove provided at the bottom of the box body, a rotating body is fixedly mounted on the top surface of the annular member, a plurality of pipes are fixedly mounted on the outer wall of the rotating body, and an exhaust hole is provided on the outer wall of the pipe, and the air bag and the exhaust hole are unidirectionally connected via a hose and a pipe buried in the sliding frame, the box body, the annular member and the rotating body.

[0015] Preferably, the rotating connection between the two rotating plates consists of an inner shaft and an outer shaft, an air pipe is opened in the inner shaft, an air groove connected to the air pipe is opened on the outer wall of the inner shaft, and air holes corresponding to or staggered with the air groove are opened on the outer wall of the outer shaft, and the air pipe can be connected with the pipeline and airbag buried in the sliding frame through the air groove and the air hole.

[0016] Preferably, the connecting rod is configured as a telescopic rod.

[0017] Preferably, the sliding shaft seat is slidably mounted on the outer wall of the rotating plate through a slide rail opened on the outer wall of the rotating plate, and water troughs are opened on both the inner and outer walls of the rotating plate.

[0018] Preferably, the exhaust hole is opened on the side wall of the pipe on the rotating body.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] First, the present invention passes bubbles into the wastewater through the aeration assembly, so that during the process of the bubbles floating upward in the wastewater, the flocs generated by coagulation are adsorbed, their density is reduced and they float to the surface of the wastewater. At the same time, the floating bubbles are pressed back to the bottom of the water by the pressing-down assembly, so that the bubbles repeatedly float upward in the water, increasing the travel of the bubbles in the wastewater, enabling the bubbles and the flocs to fully contact and combine in the water, enhancing the adsorption effect of the bubbles on the flocs, and thus improving the impurity removal effect on the wastewater.

[0021] Second, the present invention drives the sliding block to reciprocate up and down through the driving assembly, and then can drive the two sliding plates to slide downward for a certain distance and then turn and slide downward while pressing the bubbles at the bottom of the two sliding plates downward, so that the floating bubbles return to the bottom of the wastewater and float upward again to perform secondary adsorption on the flocs. After that, they slide upward and reset, thus completing the pressing of the bubbles, increasing the travel of the bubbles, enhancing the degree of combination of the bubbles and the flocs underwater, and thereby improving the treatment efficiency of the wastewater.

[0022] Third, the present invention drives the moving block to move together through the chain, and cooperates with the sprocket and the sliding frame, then can drive the sliding frame to reciprocate up and down intermittently, completing the above driving of the sliding block. At the same time, using the gap when the mechanism slides up and down, space and time are left for the adsorption of the bubbles and the flocs in the wastewater. On this basis, due to the accelerated downward movement of the sliding plate, the bubbles descend violently in the water, enhancing the degree of combination of the bubbles and the flocs, and also causing the wastewater below the sliding plate to be quickly squeezed to both sides along both sides of the sliding plate and then gather after returning to the top of the sliding plate, making the floating flocs aggregate within the working range of the sewage discharge mechanism, facilitating the sewage discharge mechanism to discharge the flocs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 is a side-sectional view of the present invention;

[0025] Figure 3 is a three-dimensional structural sectional view of the present invention;

[0026] Figure 4 is the present invention Figure 3 reverse view;

[0027] Figure 5 Schematic three-dimensional structure diagram of the driving component of the present invention;

[0028] Figure 6 Side view of the driving component of the present invention;

[0029] Figure 7 Side view of the pressing-down component of the present invention;

[0030] Figure 8 Schematic three-dimensional structure diagram of the pressing-down component of the present invention;

[0031] Figure 9 Schematic three-dimensional structure diagram of the rotating body of the present invention;

[0032] Figure 10 Cross-sectional view of the rotating body of the present invention.

[0033] In the figure: 1, box body; 2, motor; 3, transmission shaft; 4, spiral piece; 5, cavity; 6, sewage discharge pipe; 7, slider; 8, rotating shaft; 9, connecting rod; 10, rotating plate; 11, tension spring; 12, sliding shaft seat; 13, sliding block; 14, sliding frame; 15, moving block; 16, airbag; 17, chain; 18, sprocket; 19, pulley; 20, tensioning wheel; 21, speed change wheel; 22, rotating shaft; 23, spring; 24, belt; 25, electric control slider; 26, air pipe; 27, rotating body; 28, annular part; 29, exhaust hole; 30, hose; 31, air groove; 32, air hole. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] Please refer to Figures 1 to 10 , the present invention provides a technical solution: a printing sewage purification treatment device, including a box body 1 and a drain pipe and a water inlet pipe fixedly connected to the outer wall of the box body 1. An aeration component is provided inside the box body 1, and the aeration component is used to introduce gas into the wastewater;

[0036] It further includes a pressing-down component, and the pressing-down component is used to press the floating bubbles back to the bottom of the wastewater, so that the bubbles float up repeatedly in the wastewater;

[0037] It further includes a sewage discharge component, and the sewage discharge component is used to discharge the flocs on the surface of the wastewater.

[0038] When this device is in use, first, the wastewater to be treated is introduced into the box body 1 through the water inlet pipe, and a coagulant (such as polyaluminum chloride, ferric sulfate, etc.) is added thereto. After waiting for a period of reaction, the tiny suspended particles and colloidal particles in the water aggregate into larger flocs. Subsequently, air bubbles are introduced into the wastewater through the aeration assembly, so that during the upward floating process of the air bubbles, the smaller flocs are adsorbed on the surface of the air bubbles, or the air bubbles are adsorbed on the outer surface of the larger flocs. The gas with a smaller density in the air bubbles is used to reduce the density of the flocs, so that the air bubbles and the flocs float to the surface of the wastewater together and accumulate, achieving the purpose of separating the flocs formed by the suspended solids and colloidal particles in the wastewater from the water. At the same time, the pressing-down assembly is driven to press the air bubbles floating in the water back to the bottom of the wastewater, so that the air bubbles can repeatedly float upward in the wastewater, increasing the travel of the air bubbles in the water, fully contacting and adsorbing each other with the flocs in the water. Subsequently, through the sewage discharge assembly, the flocculent substances floating on the water surface are discharged from the box body 1, completing the coagulation air flotation of the wastewater.

[0039] In this way, air bubbles are introduced into the wastewater through the aeration assembly, so that during the upward floating process of the air bubbles in the wastewater, the flocculent substances generated by coagulation are adsorbed, their density is reduced to make them float to the surface of the wastewater. At the same time, the pressing-down assembly is used to press the floating air bubbles back to the bottom of the water again, so that the air bubbles repeatedly float upward in the water, increasing the travel of the air bubbles in the wastewater, enabling the air bubbles and the flocculent substances to fully contact and combine in the water, enhancing the adsorption effect of the air bubbles on the flocculent substances, and further enhancing the impurity removal effect on the wastewater.

[0040] Furthermore, the pressing-down assembly includes two sliders 7 and two sliding blocks 13 slidably installed on the inner wall of the box body 1. A rotating shaft 8 is rotatably installed between the two sliders 7, and two rotating plates 10 are rotatably installed between the two sliding blocks 13. A plurality of sliding shaft seats 12 are slidably installed on the outer walls of the two rotating plates 10. A connecting rod 9 is rotatably connected between the sliding shaft seat 12 and the rotating shaft 8. A tension spring 11 is also fixedly connected between the two rotating plates 10;

[0041] The pressing-down assembly further includes a driving assembly for driving the sliding block 13 to slide up and down reciprocally.

[0042] According to the above-described embodiment, a specific embodiment of the pressing-down assembly is provided. When the driving assembly drives the sliding block 13 to slide downward, the sliding block 13 drives the two rotating plates 10 to move downward together, and at the same time drives a plurality of connecting rods 9 and the rotating shaft 8 to descend together. Due to the restriction of the tension spring 11 on the rotating plates 10, the included angle between the two rotating plates 10 will not change temporarily. At this time, the sliding block 13 and the slider 7 slide downward along the inner wall of the box body 1 together. For specific reference, see Figure 7 and Figure 8Since the slide rail of the slider 7 is short, when the slider 7 slides downward to the limit position, the sliding block 13 continues to slide downward. At this time, the rotating plate 10 starts to rotate under the action of the sliding block 13, causing the sliding shaft seat 12 to slide on the outer wall of the rotating plate 10 until the two rotating plates 10 rotate from an inverted V shape to a positive V shape. The sliding block 13 stops sliding downward and starts to slide upward, while driving the two rotating plates 10 to slide upward and reset. When the slider 7 completes the reset first, since the sliding block 13 is still sliding upward, the tension of the tension spring 11 is cooperated to make the two rotating plates 10 rotate in the opposite direction to complete the reset.

[0043] In this way, by driving the sliding block 13 to slide up and down reciprocatingly through the driving component, the two rotating plates 10 can be driven to slide downward for a distance and then flip and slide down, pressing the bubbles at the bottom of the two rotating plates 10 downward, so that the floating bubbles return to the bottom of the wastewater, float again to adsorb the flocs for the second time, and then slide up and reset, so as to complete the downward pressure on the bubbles and increase the travel of the bubbles, so that the combination of the bubbles and the flocs underwater is improved, thereby improving the wastewater treatment efficiency.

[0044] In this way, the wastewater and the bubbles therein are exchanged in the upper and lower positions by switching the two rotating plates 10 between two states, so that the bubbles repeat the flotation movement in the wastewater, which greatly prolongs the residence time of the bubbles in the wastewater, making it convenient for the bubbles to fully adsorb the floccules in the wastewater. This method can improve the flotation effect while reducing or maintaining a certain amount of bubbles, thereby reducing the volume of the flotation equipment and the cost of its supporting equipment, and improving the flotation method.

[0045] Further, the driving assembly includes a sliding frame 14 which is slidably mounted on the inner wall of the box body 1 and the top surface of which is fixedly connected to the bottom surface of the sliding block 13. A moving block 15 is slidably mounted in the sliding frame 14. Four sprocket wheels 18 are rotatably mounted on the inner wall of the box body 1. A chain 17 is transmission-connected between the four sprocket wheels 18. One of the pins of the chain 17 is rotatably connected to the moving block 15.

[0046] The driving assembly further comprises a driving member, which is used to drive one of the sprockets 18 to rotate at a constant speed or at a variable speed.

[0047] According to the above embodiment, a specific embodiment of a driving assembly is provided. When the driving member drives one of the sprockets 18 to rotate at a constant speed, the chain 17 drives the four sprockets 18 to rotate together. Figure 5, as shown in the figure, at this time, the chain 17 drives the moving block 15 to slide leftward in the sliding frame 14, and the sliding frame 14 remains stationary. When the moving block 15 slides to the leftmost side, the driving member drives the chain 17 to drive the moving block 15 to move downward to the limit position where the slider 7 moves downward. Then, the driving member drives the sprocket 18 to rotate at an accelerated speed, and at the same time drives the sliding frame 14 to move downward at an accelerated speed. After the moving block 15 moves to the lowest position, the moving block 15 slides rightward and then upward to complete the reset.

[0048] In this way, by driving the moving block 15 to move together with the chain 17 and cooperating with the sprocket 18 and the sliding frame 14, the sliding frame 14 can be driven to slide up and down intermittently and reciprocally, completing the above-mentioned driving of the sliding block 13. At the same time, using the gap during the up and down sliding of this mechanism, space and time are reserved for the adsorption of bubbles and flocs in the wastewater. On this basis, due to the accelerated descent of the rotating plate 10, the bubbles descend violently in the water, improving the combination degree of the bubbles and the flocs. At the same time, the wastewater below the rotating plate 10 is quickly squeezed to both sides along both sides of the rotating plate 10 and returns to gather at the top of the rotating plate 10, making the floating flocs aggregate within the working range of the sewage discharge mechanism, facilitating the sewage discharge mechanism to discharge the flocs.

[0049] Further, the driving member includes a cavity 5 opened in the box body 1. A pulley 19 coaxial with one of the sprockets 18 is rotatably installed on the inner wall of the cavity 5. A rotating shaft 22 is also rotatably installed on the inner wall of the cavity 5. Two variable-speed wheels 21 are provided on the outer wall of the rotating shaft 22. One of the variable-speed wheels 21 is fixedly connected to the outer wall of the rotating shaft 22, and the other is slidably installed on the outer wall of the rotating shaft 22. A spring 23 is provided between the variable-speed wheel 21 slidably installed on the outer wall of the rotating shaft 22 and the fixed ring on the outer wall of the rotating shaft 22. An electric control slider 25 is slidably installed in the empty groove opened on the inner wall of the cavity 5. A tension pulley 20 is rotatably installed on the side wall of the electric control slider 25. The pulley 19, the tension pulley 20, and the variable-speed wheel 21 are driven by a belt 24. A motor 2 for driving the rotating shaft 22 to rotate is fixedly installed on the outer wall of the box body 1.

[0050] According to the above embodiment, a specific embodiment of the driving member is provided. When the motor 2 drives the rotating shaft 22 to rotate, it will drive the variable-speed wheel 21 to rotate together, as Figure 5 and Figure 6As shown, at this time, the tension pulley 20 is kept at the leftmost position (i.e., the farthest distance from the transmission pulley 21) under the action of the electric control slider 25. The tension pulley 20 pulls the belt 24 downward to move the two transmission pulleys 21 away from each other to the farthest state, so that the belt pulley 19 rotates at a constant speed. At this time, the slider 7 and the sliding block 13 in the above text move downward together. When the slider 7 moves to the limit position, the electric control slider 25 drives the tension pulley 20 to move to the right. Under the action of the spring 23, the two transmission pulleys 21 approach each other, increasing the linear velocity of the belt 24 on the transmission pulleys 21, that is, accelerating the rotation of the belt pulley 19, and completing the process of driving the sliding frame 14 to accelerate downward in the above text.

[0051] In this way, by cooperating the electric control slider 25 with the transmission pulley 21 to change the transmission rate of the belt 24, the purpose of accelerating the downward movement of the sliding frame 14 can be achieved, so that the rotating plate 10 can quickly press the bubbles to the bottom of the wastewater during the process of accelerating downward, and the bubbles can be fully contacted and adsorbed with the flocs in the water by the mutual impact of the water flow.

[0052] Further, the sewage discharge assembly includes a transmission shaft 3 fixedly connected to a part of the rotating shaft 22 passing through the cavity 5. A spiral blade 4 is fixedly installed on the outer wall of the transmission shaft 3, and a sewage discharge pipe 6 for discharging flocs is provided on the outer wall of the box body 1.

[0053] According to the above embodiment, a specific embodiment of the sewage discharge assembly is provided. Since the rotating plate 10 will cause the water flow to converge from both sides to the top of the rotating plate 10 after accelerating downward, the flocs can also converge at the liquid level above the rotating plate 10 after floating, as Figure 3 shown. At this time, the spiral blade 4 located there will push the flocs floating to the liquid level towards the sewage discharge pipe 6 under the drive of the motor 2, thereby completing the separation of the flocs from the wastewater below.

[0054] Further, the aeration assembly includes an airbag 16 fixedly installed at one end on the inner side wall of the sliding frame 14. The other end of the airbag 16 is fixedly connected to the side wall of the moving block 15. An annular member 28 is rotatably installed in a circular groove opened at the bottom of the box body 1. A rotating body 27 is fixedly installed on the top surface of the annular member 28. A plurality of pipes are fixedly installed on the outer wall of the rotating body 27, and exhaust holes 29 are opened on the outer wall of the pipes. The airbag 16 is unidirectionally communicated with the exhaust holes 29 through a hose 30 and pipes buried in the sliding frame 14, the box body 1, the annular member 28 and the rotating body 27.

[0055] According to the above embodiment, a specific embodiment of the aeration assembly is provided. For details, please refer to Figure 4 and Figure 5When the moving block 15 moves to the left in the sliding frame 14, the airbag 16 will be squeezed. Since the airbag 16 is unidirectionally connected to the external air supply device, the gas in the airbag 16 is squeezed out to the annular member 28 through the hose 30 and the pipes buried in the sliding frame 14, the box body 1, the annular member 28 and the rotating body 27, and then discharged from the pipe exhaust hole 29 on the outer wall of the rotating body 27. When the moving block 15 slides to the right, the airbag 16 will be stretched and air will be supplied to the airbag 16 by the external air supply device.

[0056] In this way, the airbag 16 is stretched or compressed by moving the moving block 15 left and right, so that the airbag 16 can inhale or deflate when the sliding frame 14 is stationary in the above text. When the sliding frame 14 is at a high position, the airbag 16 deflates to the bottom of the wastewater through the exhaust hole 29. When the sliding frame 14 is at a low position, the airbag 16 is supplied with air by an external air supply device and expands to complete the inflation.

[0057] Furthermore, the rotating connection between the two rotating plates 10 is composed of an inner shaft and an outer shaft, an air pipe 26 is opened in the inner shaft, an air groove 31 connected to the air pipe 26 is opened on the outer wall of the inner shaft, and an air hole 32 corresponding to the air groove 31 or staggered with each other is opened on the outer wall of the outer shaft. The air pipe 26 can be connected to the pipeline buried in the sliding frame 14 and the air bag 16 through the air groove 31 and the air hole 32.

[0058] According to the above embodiment, when the air bag 16 supplies air to the bottom of the wastewater, it will simultaneously supply air to the air pipe 26 through the air holes 32 and air grooves 31 on both sides, so that the gas can enter from other air holes 32 and air grooves 31 to the bottom of the connection between the two rotating plates 10, forming a gas space, so that the bubbles floating below are more easily captured by the two rotating plates 10 and merged into the gas space, and then with the accelerated downward pressure of the rotating plate 10, the wastewater below the rotating plate 10 is violently agitated under the action of air pressure and water pressure, further making the bubbles and flocs evenly mixed, so as to enhance the adsorption effect of the bubbles on the flocs.

[0059] Furthermore, the connecting rod 9 is configured as a telescopic rod.

[0060] According to the above embodiment, the connecting rod 9 is configured as a telescopic rod to increase the stroke of the two rotating plates 10, thereby increasing the stroke of the bubbles pressing downward, and in combination with the accelerated downward pressure mentioned above, further increasing the fluidity of the bubbles in the wastewater.

[0061] Furthermore, the sliding shaft seat 12 is slidably installed on the outer wall of the rotating plate 10 through a slide rail provided on the outer wall of the rotating plate 10 , and water grooves are provided on both the inner and outer walls of the rotating plate 10 .

[0062] According to the above embodiments, the sliding shaft seat 12 is installed on the outer wall of the rotating plate 10 through the slide rail, which increases the structural stability. At the same time, the water troughs on the inner and outer walls of the rotating plate 10 can increase the water flow rate, so that the downward pressure and backflow rate of the wastewater in the above text increase, further improving the polymerization effect on the flocs.

[0063] Further, the exhaust hole 29 is opened on the side wall of the pipe on the rotating body 27.

[0064] According to the above embodiments, when the exhaust hole 29 is opened on the side wall of the pipe on the rotating body 27, when the gas is discharged from the exhaust hole 29, under the reaction force of the gas, the rotating body 27 and the annular member 28 are driven to rotate together. In this way, the gas can rotate in the water during the discharge process, reducing the rising speed of the bubbles and further increasing the travel of the bubbles.

[0065] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification and drawings, they can also be directly processed without doubt according to the existing technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology, so no specific description will be made here.

[0066] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A printing sewage purification and treatment device, comprising a box body and a drain pipe and a water inlet pipe fixedly connected to the outer wall of the box body, characterized in that: An aeration component is provided in the box, and the aeration component is used to introduce gas into the wastewater; It also includes a downward pressure component, which is used to press the floating bubbles back to the bottom of the wastewater, so that the bubbles repeatedly float in the wastewater; It also includes a sewage discharge component, which is used to discharge flocs on the surface of the wastewater; The pressing assembly includes two sliders and two sliding blocks slidably mounted on the inner wall of the box body, a rotating shaft is rotatably mounted between the two sliders, two rotating plates are rotatably mounted between the two sliding blocks, multiple sliding shaft seats are slidably mounted on the outer walls of the two rotating plates, a connecting rod is rotatably connected between the sliding shaft seat and the rotating shaft, and a tension spring is also fixedly connected between the two rotating plates; The pressing assembly further includes a driving assembly, which is used to drive the sliding block to slide reciprocatingly up and down; The driving assembly includes a sliding frame slidably mounted on the inner wall of the box and the top surface of which is fixedly connected to the bottom surface of the sliding block. A moving block is slidably mounted in the sliding frame. Four sprockets are rotatably mounted on the inner wall of the box. A chain is transmission-connected between the four sprockets. One of the pins of the chain is rotatably connected to the moving block. The driving assembly also includes a driving member, which is used to drive one of the sprockets to rotate at a constant speed or a variable speed; The driving member includes a cavity opened in the box body, a pulley coaxial with one of the sprockets is rotatably installed on the inner wall of the cavity, a rotating shaft is also rotatably installed on the inner wall of the cavity, two speed change wheels are arranged on the outer wall of the rotating shaft, one of the speed change wheels is fixedly connected to the outer wall of the rotating shaft, and the other is slidably installed on the outer wall of the rotating shaft, a spring is arranged between the speed change wheel slidably installed on the outer wall of the rotating shaft and the fixed ring on the outer wall of the rotating shaft, an electric control slider is slidably installed in the empty groove opened on the inner wall of the cavity, a tensioning wheel is rotatably installed on the side wall of the electric control slider, the pulley, the tensioning wheel and the speed change wheel are driven by a belt, and a motor for driving the rotating shaft to rotate is fixedly installed on the outer wall of the box body; The aeration component includes an air bag with one end fixedly mounted on the inner wall of the sliding frame, and the other end of the air bag is fixedly connected to the side wall of the moving block. A ring is rotatably mounted in a circular groove at the bottom of the box body, a rotating body is fixedly mounted on the top surface of the ring, a plurality of pipes are fixedly mounted on the outer wall of the rotating body, and an exhaust hole is opened on the outer wall of the pipe. The air bag and the exhaust hole are unidirectionally connected through a hose and a pipe buried in the sliding frame, the box body, the ring and the rotating body.

2. The printing sewage purification treatment device according to claim 1, characterized in that: The sewage discharge component comprises a transmission shaft fixedly connected to the part of the rotating shaft passing through the cavity, a spiral sheet is fixedly installed on the outer wall of the transmission shaft, and a sewage discharge pipe for discharging floccules is arranged on the outer wall of the box body.

3. The printing sewage purification treatment device according to claim 2, characterized in that: The rotating connection of the two rotating plates consists of an inner shaft and an outer shaft. An air pipe is opened in the inner shaft, and an air groove connected to the air pipe is opened on the outer wall of the inner shaft. The outer wall of the outer shaft is provided with air holes that can correspond to the air groove or be staggered with each other. The air pipe can be connected with the pipeline buried in the sliding frame and the air bag through the air groove and the air hole.

4. The printing sewage purification treatment device according to claim 3, characterized in that: The connecting rod is set as a telescopic rod.

5. The printing sewage purification treatment device according to claim 4, characterized in that: The sliding shaft seat is slidably installed on the outer wall of the rotating plate through a sliding rail arranged on the outer wall of the rotating plate, and water grooves are arranged on the inner and outer walls of the rotating plate.

6. The printing sewage purification treatment device according to claim 5, characterized in that: The exhaust hole is arranged on the side wall of the pipeline on the rotating body.

Images