An ink exhaust treatment device for a printing apparatus

Abstract

The application belongs to the technical field of atmospheric pollution treatment, and particularly relates to an ink waste gas treatment equipment for a printing device, which comprises a printing machine, a gas collecting cover and a waste gas transmission pipe, the end of the waste gas transmission pipe is connected with a spraying box through a pipeline, one side of the spraying box is connected with a hanging filter pipeline through a pipeline, a gas flow guiding component is movably installed on the outside of the gas collecting cover, fixed point waste gas treatment components are fixedly installed on the two sides of the gas flow guiding component, through the setting of a centrifugal compressor, waste gas is transmitted to the inside of the gas flow guiding component through the path of an activated carbon filter and a gas guide pipe, the gas flow guiding component guides the waste gas, a large amount of waste gas is blown to the direction where the gas collecting cover is located, and the gas collecting cover collects the waste gas, wherein the waste gas first passes through the activated carbon filter, the activated carbon filter can adsorb and separate organic molecules in the waste gas, and then is transported to the inside of the spraying box and the hanging filter pipeline through a pipeline for subsequent treatment.

Description

Technical Field

[0001] This invention belongs to the field of air pollution treatment, specifically a printing equipment ink waste gas treatment device. Background Technology

[0002] Printing equipment is a device used to transfer text, images, or other patterns onto a substrate through printing processes. Modern printing equipment is a high-tech device developed based on ancient printing techniques. In the printing process, printing equipment usually uses ink to complete the process of transferring graphic information to the substrate. However, the use of printing ink will cause the ink to evaporate in the air, causing volatile organic compound pollution, which will then form waste gas that is spread into the atmosphere, affecting not only the surrounding environment but also posing a threat to human health.

[0003] A patent document with publication number CN214552217U discloses a printing exhaust gas treatment device, including an air suction device and an air suction hood installed on a printing machine. An air suction pipe is connected between the air suction hood and the air suction device. A spray box and a filter box are fixedly installed on the air suction pipe. The spray box is located on the side of the filter box away from the air suction device. A spray assembly is installed on the spray box, and a filter plate is installed inside the filter box.

[0004] Traditional solutions involve installing a gas collection structure above the printing equipment to collect the exhaust gases generated by the ink during operation. The exhaust gases are then treated through various methods such as spraying and filtration. In traditional technology, the gas collection structure is positioned high above the printing equipment, a typical elevated gas collection layout. This allows the exhaust gases to rise slowly and be collected. However, this method is not suitable for capturing exhaust gases generated immediately during the printing process. Due to the diffusion characteristics of exhaust gases, the immediately generated exhaust gases mix and dilute with the surrounding air during their slow ascent, resulting in a decrease in concentration and an expansion of distribution range. Consequently, the immediately generated exhaust gases may still volatilize into the surrounding environment, causing air pollution. Furthermore, during the process of the exhaust gases being captured by the gas collection structure, workers are still exposed to some of the exhaust gases, which can affect their health.

[0005] Therefore, the present invention provides an ink waste gas treatment device for printing equipment. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The ink exhaust gas treatment device for printing equipment of the present invention includes a printing machine and a gas collection hood covering and set directly above the printing machine. A universal gas supply pipe is fixedly installed at the top of the gas collection hood. An exhaust gas transmission pipe is fixedly installed at one end of the universal gas supply pipe. The exhaust gas transmission pipe is suspended and installed on the wall of the building by a pipe clamp. The exhaust gas transmission pipe is located above the printing machine. Multiple printing machines, gas collection hoods and universal gas supply pipes are provided. One end of each of the multiple universal gas supply pipes is connected to the exhaust gas transmission pipe. The end of the exhaust gas transmission pipe is connected to a spray box through a pipe. A suspended filter pipe is connected to one side of the spray box through a pipe. A pump body for drawing gas is provided at the end of the suspended filter pipe.

[0008] An airflow guiding component is movably installed on the outside of the gas collection hood. Fixed-point exhaust gas treatment components are fixedly installed on both sides of the airflow guiding component. The fixed-point exhaust gas treatment component includes a fixed outer shell and a breathable ring fixedly installed inside the fixed outer shell. An activated carbon filter and a centrifugal compressor are fixedly installed inside the fixed outer shell. An impeller is movably installed inside the centrifugal compressor. An air guide pipe is fixedly installed at the end of the fixed outer shell and is connected to the spray box.

[0009] Preferably, the distance between the activated carbon filter and the air guide pipe is greater than the distance between the impeller and the air guide pipe. Multiple air grooves are evenly distributed on the outer side of the air permeable ring, and a cavity is provided inside the air permeable ring for air to enter.

[0010] Preferably, a fixing strip is fixedly installed on one side of the gas collection hood, and multiple swivel tubes are fixedly installed on one side of the fixing strip, with the lower ends of the multiple swivel tubes connected to the airflow guiding component.

[0011] Preferably, the airflow guiding component includes a rotating plate and a plurality of strip-shaped component slots extending through the interior of the rotating plate, wherein guide components are fixedly installed inside the plurality of strip-shaped component slots.

[0012] Preferably, the guide component includes an air guide ring fixedly installed at the bottom of the groove of the strip component, an air storage ring fixedly installed inside the air guide ring, a connecting pipe fixedly installed on the outer side of one end of the air storage ring, the connecting pipe passing through the rotating plate and communicating with the corresponding air guide pipe, and a hidden pipe fixedly installed on the outer side of the other end of the air storage ring.

[0013] Preferably, a gas delivery cavity is provided between the gas storage ring and the gas guide ring. The gas delivery cavity is a cavity formed by the combination of the gas storage ring and the gas guide ring, and the gas inside the gas guide pipe is guided into the gas delivery cavity.

[0014] Preferably, a barrier ring is fixedly installed at the bottom of the gas storage ring, and a U-shaped ring is fixedly installed at the bottom of the gas guide ring. The barrier ring is used to delay the time it takes for gas inside the connecting pipe to flow through the gap between the U-shaped ring and the barrier ring.

[0015] Preferably, the thickness of the inner top cavity of the gas delivery cavity is less than the thickness of the inner bottom cavity of the gas delivery cavity, and the gap between the U-shaped ring and the barrier ring is connected to the inner bottom cavity of the gas delivery cavity and the interior of the strip component groove.

[0016] Preferably, a rotating bead is fixedly installed at the bottom of the universal steering tube. The rotating bead is located on one side of the airflow guiding component. Both the rotating bead and the universal steering tube are hollow inside. One end of the universal steering tube is connected to the inside of the gas collection hood through a fixing strip. A through groove is opened inside the rotating bead.

[0017] Preferably, multiple rotating components are installed on the outside of the airflow guiding component. Each rotating component includes two fixed blocks fixedly installed on one side of the airflow guiding component. Each of the two fixed blocks has a fixed shaft fixedly installed on its opposite side. The fixed shaft is located inside the through groove. The fixed shaft and the through groove are connected by a rotary seal. An inner air pipe is installed inside one of the fixed shafts. The inner air pipe is connected to the inside of the through groove.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. The ink exhaust gas treatment device for printing equipment described in this invention involves placing a fixed-point exhaust gas treatment component around the area where a large amount of exhaust gas is generated during the operation of the printing machine. Through the configuration of a centrifugal compressor and its impeller, ambient air and the immediately generated exhaust gas quickly enter the interior of the fixed-point exhaust gas treatment component through the air grooves of the permeable ring. The exhaust gas is then transported through a fixed outer shell, an activated carbon filter, and a guide pipe to the interior of an airflow guiding component. The airflow guiding component directs the exhaust gas, causing a large amount of exhaust gas to be blown towards the gas collection hood, where it is collected. The exhaust gas first passes through the activated carbon filter, which adsorbs and separates organic molecules in the exhaust gas, significantly reducing odor. The exhaust gas collected by the gas collection hood is then integrated and transported through an exhaust gas transmission pipe to the interior of a spray box. The spray liquid absorbs water-soluble pollutants in the exhaust gas. After spraying, the exhaust gas is transported through a pipeline to the interior of a suspended filter pipe. The suspended filter pipe contains multiple filtration structures, typically using high-efficiency filter materials for deep purification of the exhaust gas.

[0020] 2. The ink exhaust gas treatment device for printing equipment described in this invention, after the gas enters the gas delivery chamber, it first accumulates until the gas delivery chamber is almost full. Then, the exhaust gas is released through the gap between the barrier ring and the U-shaped ring. That is, through the setting of the guide member, the exhaust gas is released in a ring. At this time, through the setting of the universal tube, the position of the guide member is oriented towards the gas collection hood. The ring-released exhaust gas is transported to the direction of the gas collection hood and then collected by the gas collection hood. Through the setting of the guide member, the gas is released only in one direction. When the guide member is obliquely upward towards the gas collection hood, the exhaust gas is released obliquely upward. The other side of the guide member, facing the printing machine, will not be impacted by the released air, which can accelerate the collection efficiency of the exhaust gas. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a three-dimensional view of the entire invention;

[0023] Figure 2 This is a three-dimensional schematic diagram of the gas collection hood and printing press in this invention;

[0024] Figure 3 This is a three-dimensional schematic diagram of the airflow guiding component and the fixed-point exhaust gas treatment component in this invention;

[0025] Figure 4 This is a three-dimensional schematic diagram of the steering universal joint and airflow guiding component in this invention;

[0026] Figure 5 This is a three-dimensional schematic diagram of the disassembled fixed-point waste gas treatment component in this invention;

[0027] Figure 6 This is a three-dimensional schematic diagram of the airflow guiding component in this invention;

[0028] Figure 7 This is a three-dimensional schematic diagram of the gas storage ring and the gas guide ring in this invention;

[0029] Figure 8 This is a three-dimensional schematic diagram of the barrier ring and the U-shaped ring in this invention;

[0030] Figure 9 This is a three-dimensional schematic diagram of the rotating component in this invention.

[0031] In the diagram: 1. Exhaust gas transmission pipe; 2. Universal gas transmission pipe; 3. Gas collection hood; 31. Fixing strip; 32. Diverting universal pipe; 321. Rotating ball; 322. Through groove; 33. Airflow guiding component; 331. Rotating plate; 332. Strip component groove; 4. Printing machine; 5. Spray box; 6. Suspended filter pipe; 7. Fixed exhaust gas treatment component; 71. Fixed outer shell; 72. Activated carbon filter; 73. Centrifugal compressor; 74. Impeller; 75. Breathing ring; 76. Air guide pipe; 8. Guiding component; 81. Gas storage ring; 811. Barrier ring; 82. Air guide ring; 821. U-shaped ring; 83. Connecting pipe; 84. Hidden pipe; 85. Gas transmission chamber; 9. Rotating component; 91. Fixing block; 92. Fixing shaft; 93. Inner gas pipe. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Example 1: As Figure 1-5 As shown in the figure, an ink exhaust gas treatment device for printing equipment according to an embodiment of the present invention includes a printing machine 4 and a gas collection hood 3 covering and disposed directly above the printing machine 4. A universal gas supply pipe 2 is fixedly installed on the top of the gas collection hood 3. An exhaust gas transmission pipe 1 is fixedly installed on one end of the universal gas supply pipe 2. The exhaust gas transmission pipe 1 is suspended and installed on the wall of the building by a pipe clamp. The exhaust gas transmission pipe 1 is located above the printing machine 4. Multiple printing machines 4, gas collection hood 3 and universal gas supply pipes 2 are provided. One end of each of the multiple universal gas supply pipes 2 is connected to the exhaust gas transmission pipe 1. The end of the exhaust gas transmission pipe 1 is connected to a spray box 5 through a pipe. A suspended filter pipe 6 is connected to one side of the spray box 5 through a pipe. A pump body for drawing gas is provided at the end of the suspended filter pipe 6.

[0034] An airflow guiding component 33 is movably installed on the outside of the gas collection hood 3. Fixed exhaust gas treatment components 7 are fixedly installed on both sides of the airflow guiding component 33. The fixed exhaust gas treatment component 7 includes a fixed outer shell 71 and a breathable ring 75 fixedly installed inside the fixed outer shell 71. An activated carbon filter 72 and a centrifugal compressor 73 are fixedly installed inside the fixed outer shell 71. An impeller 74 is movably installed inside the centrifugal compressor 73. An air guide pipe 76 is fixedly installed at the end of the fixed outer shell 71. The air guide pipe 76 is connected to the spray box 5.

[0035] Specifically, during the operation of printing press 4, ink is used to transfer graphic information to the substrate. However, the use of printing ink causes it to evaporate into the air, resulting in volatile organic compound pollution and ultimately, exhaust gas that is released into the atmosphere. Therefore, a gas collection hood 3 is suspended directly above printing press 4. Through the action of an external pump, the gas collection hood 3 generates suction, causing the exhaust gas generated by ink evaporation during printing press 4 to rise until it is collected by the gas collection hood 3. To avoid affecting the normal operation of printing press 4, the suction power of the gas collection hood 3 cannot be too high; otherwise, excessive suction may interfere with the printing process, affecting the normal drying and setting of the ink, leading to ink deformation and impacting printing quality. The quality is poor, and the elevated setting of the gas collection hood 3 fails to fully comply with the "near-source capture" principle of industrial waste gas collection, that is, to collect and treat the waste gas in a timely and efficient manner near the source of the waste gas generation. The instantaneous volatile waste gas generated when the printing press 4 is working may mix with the outside air, thereby affecting the surrounding environment and causing air pollution. In this device, an airflow guiding component 33 is movably installed on the side of the gas collection hood 3, and fixed-point waste gas treatment components 7 are movably installed on both sides of the airflow guiding component 33. The fixed-point waste gas treatment components 7 can be placed around the area where a large amount of waste gas is generated when the printing press 4 is working. Through the setting of the centrifugal compressor 73 and the cooperation of the impeller 74, the surrounding air and the instantaneously generated waste gas can be quickly collected from the air vent ring 7. The gas from the 5th gas tank enters the interior of the fixed-point exhaust gas treatment component 7. The exhaust gas is transmitted through the fixed outer shell 71, activated carbon filter 72, and air guide pipe 76 to the airflow guiding component 33. The airflow guiding component 33 guides the exhaust gas, causing a large amount of exhaust gas to be blown towards the gas collection hood 3 and collected by the gas collection hood 3. The exhaust gas first passes through the activated carbon filter 72, which can adsorb and separate organic molecules in the exhaust gas, significantly reducing odor and improving the surrounding working environment. The air guide pipe 76 is a flexible and deformable pipe, so the fixed outer shell 71 can be easily repositioned to select a location where exhaust gas is generated but does not affect the normal drying of ink during printing. Placing the fixed-point exhaust gas treatment component 7 in these locations can treat the exhaust gas generated immediately. The generated waste gas is collected and treated to reduce odor and prevent it from spreading to the surrounding environment if it is not collected by the gas collection hood 3. The waste gas collected by the gas collection hood 3 is integrated and transported through the waste gas transmission pipe 1 and then transported to the interior of the spray box 5. The spray liquid inside the spray box 5, which is usually water or an alkaline solution, comes into full contact with the waste gas to achieve a two-phase mass transfer process between the gas and liquid phases. The spray liquid can absorb water-soluble pollutants in the waste gas. After spraying, the waste gas is transported through the pipeline to the interior of the suspended filter pipe 6. The suspended filter pipe 6 is equipped with multiple filter structures. The filter structures usually use high-efficiency filter materials to deeply purify the waste gas. The filter materials can intercept residual fine particulate matter and organic matter that has not been absorbed by the spray liquid in the waste gas.The ink fumes generated during the operation of printing press 4 are treated through multiple steps, ensuring that the fumes do not affect the surrounding environment and cause air pollution.

[0036] like Figure 2-4 and Figure 6 As shown, the distance between the activated carbon filter 72 and the air guide pipe 76 is greater than the distance between the impeller 74 and the air guide pipe 76. Multiple air grooves are evenly distributed on the outer side of the air permeable ring 75, and a cavity is provided inside the air permeable ring 75 for air to enter.

[0037] A fixing strip 31 is fixedly installed on one side of the gas collection hood 3, and multiple directional universal tubes 32 are fixedly installed on one side of the fixing strip 31. The lower ends of the multiple directional universal tubes 32 are connected to the airflow guiding component 33.

[0038] The airflow guiding component 33 includes a rotating plate 331 and multiple strip-shaped component grooves 332 that pass through the interior of the rotating plate 331. Guide components 8 are fixedly installed inside the multiple strip-shaped component grooves 332.

[0039] Specifically, the gas collection hood 3 is connected to the airflow guiding component 33 via the universal joint 32. The airflow guiding component 33 can release the gas transmitted by the air guide pipe 76 toward the gas collection hood 3, and plan the release direction of the gas collected by the fixed-point waste gas treatment component 7 to avoid blowing it toward the working area of ​​the printing machine 4 and affecting the printing quality. Through the universal bending movement feature of the universal joint 32, the airflow guiding component 33 can change position outside the printing machine 4 to avoid the setting of the airflow guiding component 33 affecting the work of the staff. The guiding function of the airflow guiding component 33 is mainly realized by the guiding component 8. The guiding component 8 releases the gas transmitted by the air guide pipe 76 in the inner groove of the strip component groove 332. At this time, the released gas is only transported from the strip component groove 332 toward the gas collection hood 3, so that the waste gas generated immediately is quickly collected by the gas collection hood 3.

[0040] like Figure 6-8 As shown, the guide member 8 includes an air guide ring 82 fixedly installed at the bottom of the strip member groove 332. An air storage ring 81 is fixedly installed inside the air guide ring 82. A connecting pipe 83 is fixedly installed on the outer side of one end of the air storage ring 81. The connecting pipe 83 passes through the rotating plate 331 and is connected to the corresponding air guide pipe 76. A hidden pipe 84 is fixedly installed on the outer side of the other end of the air storage ring 81.

[0041] A gas delivery cavity 85 is provided between the gas storage ring 81 and the gas guide ring 82. The gas delivery cavity 85 is a cavity formed by the combination of the gas storage ring 81 and the gas guide ring 82. The gas inside the gas guide pipe 76 is guided into the gas delivery cavity 85.

[0042] A barrier ring 811 is fixedly installed at the bottom of the gas storage ring 81, and a U-shaped ring 821 is fixedly installed at the bottom of the gas guide ring 82. The barrier ring 811 is used to delay the time for the gas inside the connecting pipe 83 to flow through the gap between the U-shaped ring 821 and the barrier ring 811.

[0043] The thickness of the inner top cavity of the gas delivery cavity 85 is less than the thickness of the inner bottom cavity of the gas delivery cavity 85. The gap between the U-shaped ring 821 and the barrier ring 811 is connected to the inner bottom cavity of the gas delivery cavity 85 and the interior of the strip component groove 332.

[0044] Specifically, the waste gas drawn by the fixed-point waste gas treatment component 7 is transported to the interior of the gas delivery chamber 85 through the gas guide pipe 76 and the connecting pipe 83. Initially, the gas moves from the top to the bottom of the gas delivery chamber 85. Due to the barrier ring 811, the gap between the barrier ring 811 and the U-shaped ring 821 is small, so the gas accumulates inside the gas delivery chamber 85 until it is almost full. Then, the waste gas is released through the gap between the barrier ring 811 and the U-shaped ring 821, i.e., through the guide component 8, the waste gas is released in a ring shape. At this time, the guide pipe 32 directs the guide component 8 towards the gas collection hood 3, and the ring-released waste gas is transported to the gas collection hood 3 for collection. Through the guide component 8, the gas only flows from... The exhaust gas is released in one direction. When the guide member 8 is angled upward toward the gas collection hood 3, the exhaust gas will be released angled upward. The other side of the guide member 8, facing the printing press 4, will not be impacted by the released air, which can accelerate the collection efficiency of the exhaust gas. According to the principle of aerodynamics, the air needs to maintain continuity during the flow. When the guide member 8 blows air angled upward, the air is blown out from the annular opening, forming a forward airflow. In order to maintain the continuity of the air, the surrounding air will be pulled over to fill the gap, thus generating a certain suction phenomenon behind the guide member 8. This suction phenomenon is relatively slight, which allows the airflow guide member 33 to be positioned at the head position of the worker. When the exhaust gas is guided to the gas collection hood 3, the slight suction effect behind the guide member 8 can remove the exhaust gas at the head position of the worker, minimizing the harm of the exhaust gas to the worker.

[0045] Example 2: Figure 9 As shown in the first embodiment, another embodiment of the present invention is as follows: a rotating bead 321 is fixedly installed at the bottom of the universal steering tube 32. The rotating bead 321 is located on one side of the airflow guiding component 33. Both the rotating bead 321 and the universal steering tube 32 are hollow inside. One end of the universal steering tube 32 passes through the fixing strip 31 and is connected to the inside of the gas collection hood 3. A through groove 322 is provided inside the rotating bead 321.

[0046] Multiple rotating components 9 are installed on the outside of the airflow guiding component 33. The rotating component 9 includes two fixed blocks 91 fixedly installed on one side of the airflow guiding component 33. Fixed shafts 92 are fixedly installed on opposite sides of the two fixed blocks 91. The fixed shafts 92 are located inside the through groove 322. The fixed shafts 92 and the through groove 322 are connected by a rotary seal. An inner air pipe 93 is installed inside one of the fixed shafts 92. The inner air pipe 93 is connected to the inside of the through groove 322.

[0047] Specifically, the through groove 322 at the lower end of the steering universal tube 32, through its cooperation with the fixed shaft 92, allows the rotating plate 331 to rotate outside the through groove 322, thereby changing its rotation angle. The two steering universal tubes 32 allow the airflow guiding component 33 to change its spatial position, thus allowing the airflow guiding component 33 to find a suitable working position. A hidden tube 84 is provided on the outside of the guide component 8. The hidden tube 84 is hidden inside the rotating plate 331 and connected to the corresponding inner air pipe 93. That is, the hidden tube 84 is connected to the steering universal tube 32 through the inner air pipe 93 and the through groove 322. The gas collection hood 3 itself has a certain suction function. Furthermore, the stronger the suction force of the exhaust gas above the printing press 4, the more likely the force of the annular exhaust of the guide member 8 is to disrupt the airflow above the printing press 4. When the gas collection hood 3 is suctioned, some exhaust gas will rise. The two streams of rising exhaust gas and annular exhaust gas will collide violently, which can easily cause airflow impact and affect the normal operation of the printing press 4. In this device, the gas inside the gas delivery chamber 85 is transmitted to the through slot 322 and the universal deflector 32 through the hidden pipe 84 and the inner air pipe 93, that is, it is directly guided to the inside of the gas collection hood 3. This reduces the gas impact force of the guide member 8 on the path toward the gas collection hood 3 and avoids gas turbulence affecting the printing work.

[0048] Working Principle: When the printing press 4 is running, it uses ink to transfer graphic information to the substrate. However, the use of printing ink causes it to evaporate into the air, resulting in volatile organic compound pollution and ultimately, exhaust gas that is released into the atmosphere. Therefore, a gas collection hood 3 is suspended directly above the printing press 4. Through the action of an external pump, the gas collection hood 3 generates suction, causing the exhaust gas generated by ink evaporation during printing to rise and be collected by the gas collection hood 3. To avoid affecting the normal operation of the printing press 4, the suction power of the gas collection hood 3 cannot be too high; otherwise, excessive suction may interfere with the printing process, affecting the normal drying and setting of the ink, causing ink deformation, and impacting printing quality. The quality is poor, and the elevated setting of the gas collection hood 3 fails to fully comply with the "near-source capture" principle of industrial waste gas collection, that is, to collect and treat the waste gas in a timely and efficient manner near the source of the waste gas generation. The instantaneous volatile waste gas generated when the printing press 4 is working may mix with the outside air, thereby affecting the surrounding environment and causing air pollution. In this device, an airflow guiding component 33 is movably installed on the side of the gas collection hood 3, and fixed-point waste gas treatment components 7 are movably installed on both sides of the airflow guiding component 33. The fixed-point waste gas treatment components 7 can be placed around the area where a large amount of waste gas is generated when the printing press 4 is working. Through the setting of the centrifugal compressor 73 and the cooperation of the impeller 74, the surrounding air and the instantaneously generated waste gas can be quickly collected from the air vent ring 7. The gas from the 5th gas tank enters the interior of the fixed-point exhaust gas treatment component 7. The exhaust gas is transmitted through the fixed outer shell 71, activated carbon filter 72, and air guide pipe 76 to the airflow guiding component 33. The airflow guiding component 33 guides the exhaust gas, causing a large amount of exhaust gas to be blown towards the gas collection hood 3 and collected by the gas collection hood 3. The exhaust gas first passes through the activated carbon filter 72, which can adsorb and separate organic molecules in the exhaust gas, significantly reducing odor and improving the surrounding working environment. The air guide pipe 76 is a flexible and deformable pipe, so the fixed outer shell 71 can be easily repositioned to select a location where exhaust gas is generated but does not affect the normal drying of ink during printing. Placing the fixed-point exhaust gas treatment component 7 in these locations can treat the exhaust gas generated immediately. The generated waste gas is collected and treated to reduce odor and prevent it from spreading to the surrounding environment if it is not collected by the gas collection hood 3. The waste gas collected by the gas collection hood 3 is integrated and transported through the waste gas transmission pipe 1 and then transported to the interior of the spray box 5. The spray liquid inside the spray box 5, which is usually water or an alkaline solution, comes into full contact with the waste gas to achieve a two-phase mass transfer process between the gas and liquid phases. The spray liquid can absorb water-soluble pollutants in the waste gas. After spraying, the waste gas is transported through the pipeline to the interior of the suspended filter pipe 6. The suspended filter pipe 6 is equipped with multiple filter structures. The filter structures usually use high-efficiency filter materials to deeply purify the waste gas. The filter materials can intercept residual fine particulate matter and organic matter that has not been absorbed by the spray liquid in the waste gas.The ink exhaust gas generated during the operation of the printing press 4 is treated through multiple steps to ensure that the ink exhaust gas does not affect the surrounding environment and cause air pollution. The exhaust gas drawn by the fixed exhaust gas treatment component 7 is transported to the interior of the gas delivery chamber 85 through the gas guide pipe 76 and the connecting pipe 83. Initially, the gas moves from the top of the gas delivery chamber 85 to the bottom. Due to the setting of the barrier ring 811, the gap between the barrier ring 811 and the U-shaped ring 821 is small. Therefore, the gas accumulates after entering the gas delivery chamber 85. When the gas delivery chamber 85 is almost full, the exhaust gas is released through the gap between the barrier ring 811 and the U-shaped ring 821. That is, through the setting of the guide component 8, the exhaust gas is released in a ring. At this time, through the setting of the universal joint 32, the position of the guide component 8 is oriented towards the gas collection hood 3. The ring-released exhaust gas is transported to the direction of the gas collection hood 3 and then collected by the gas collection hood 3. The gas is collected by a guide member 8, which ensures that the gas is released from only one direction. When the guide member 8 is angled upwards towards the gas collection hood 3, the exhaust gas is released upwards at an angle. The other side of the guide member 8, facing the printing press 4, is not impacted by the released air, thus accelerating the collection efficiency. Furthermore, according to aerodynamic principles, airflow needs to maintain continuity. When the guide member 8 blows upwards at an angle, air is blown out from the annular opening, forming a forward airflow. To maintain air continuity, surrounding air is pulled in to fill the gap, creating a slight suction effect behind the guide member 8. This suction effect is relatively minor, allowing the airflow guide member 33 to be positioned at the worker's head level. When the exhaust gas is guided to the gas collection hood 3, the slight suction effect behind the guide member 8 can remove exhaust gas from the worker's head area, minimizing the harm caused by the exhaust gas.

[0049] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ink exhaust treatment device for printing equipment, comprising a printing machine (4) and a gas collection cover (3) arranged directly above the printing machine (4), a universal gas conveying pipe (2) is fixedly installed at the top end of the gas collection cover (3), one end of the universal gas conveying pipe (2) is fixedly installed with an exhaust gas conveying pipe (1), the exhaust gas conveying pipe (1) is suspendedly installed on the wall of a building through a pipe clamp, and the exhaust gas conveying pipe (1) is located above the printing machine (4), characterized in that: The printing machine (4), gas collection cover (3) and universal gas pipe (2) are provided with multiple, one end of multiple universal gas pipe (2) is connected with waste gas transmission pipe (1), the end of waste gas transmission pipe (1) is connected with spray tank (5) through pipeline, one side of spray tank (5) is connected with suspension filter pipeline (6) through pipeline, the end of suspension filter pipeline (6) is provided with pump body for sucking gas; The outer side of gas collection cover (3) is movably installed with airflow guide member (33), the two sides of airflow guide member (33) are fixedly installed with fixed point waste gas treatment member (7), fixed point waste gas treatment member (7) includes fixed shell (71) and air-permeable ring (75) fixedly installed inside fixed shell (71), the inside of fixed shell (71) is fixedly installed with activated carbon filter (72) and centrifugal compressor (73), impeller (74) is movably installed in centrifugal compressor (73), the end of fixed shell (71) is fixedly installed with air guide pipe (76), air guide pipe (76) is connected with spray tank (5); The airflow guide member (33) includes a rotating plate (331) and a plurality of strip-shaped member grooves (332) formed through the inside of the rotating plate (331), and a plurality of guide members (8) are fixedly installed inside the strip-shaped member grooves (332). The guide member (8) includes a gas guide ring (82) fixedly installed at the inner bottom of the strip-shaped member groove (332), a gas storage ring (81) is fixedly installed inside the gas guide ring (82), a communication pipe (83) is fixedly installed at one end of the outer side of the gas storage ring (81), the communication pipe (83) penetrates the rotating plate (331) and communicates with the corresponding air guide pipe (76), and a hidden pipe (84) is fixedly installed at the other end of the outer side of the gas storage ring (81). A gas conveying cavity (85) is formed between the gas storage ring (81) and the gas guide ring (82), the gas conveying cavity (85) is a cavity formed by the combination of the gas storage ring (81) and the gas guide ring (82), and the gas inside the air guide pipe (76) is guided into the gas conveying cavity (85). A blocking ring (811) is fixedly installed at the bottom of the gas storage ring (81), and a U-shaped ring (821) is fixedly installed at the bottom of the gas guide ring (82), the blocking ring (811) is used to delay the time of gas flowing through the gap between the U-shaped ring (821) and the blocking ring (811) in the communication pipe (83).

2. The ink exhaust treatment device for a printing apparatus according to claim 1, characterized by: The distance between the activated carbon filter (72) and the air guide pipe (76) is greater than the distance between the impeller (74) and the air guide pipe (76), a plurality of air grooves are uniformly distributed on the outer side of the air-permeable ring (75), and a cavity is formed in the air-permeable ring (75) for air to enter.

3. The ink exhaust treatment device for a printing apparatus according to claim 1, characterized by: A fixed strip (31) is fixedly installed on one side of the gas collection cover (3), a plurality of steering universal pipes (32) are fixedly installed on one side of the fixed strip (31), and the lower ends of the plurality of steering universal pipes (32) are connected with the airflow guide member (33).

4. The ink exhaust treatment device for a printing apparatus according to claim 1, characterized by: The inner top cavity thickness of the gas conveying cavity (85) is less than the inner bottom cavity thickness of the gas conveying cavity (85), and the gap between the U-shaped ring (821) and the blocking ring (811) is in communication with the inner bottom cavity of the gas conveying cavity (85) and the inside of the strip-shaped member slot (332).

5. The ink exhaust treatment device for a printing apparatus according to claim 3, characterized by: The bottom of the steering universal pipe (32) is fixedly provided with a rotating ball (321), the rotating ball (321) is located on one side of the airflow guide member (33), the rotating ball (321) and the inside of the steering universal pipe (32) are both hollow, one end of the steering universal pipe (32) penetrates through the fixed strip (31) and is in communication with the inside of the gas collecting cover (3), and the inside of the rotating ball (321) is provided with a penetrating groove (322).

6. An ink exhaust treatment device for a printing apparatus according to claim 5, characterized by: A plurality of rotating members (9) are installed on the outer side of the airflow guide member (33), the rotating member (9) comprises two fixed blocks (91) fixedly installed on one side of the airflow guide member (33), the opposite sides of the two fixed blocks (91) are both fixedly provided with a fixed shaft (92), the fixed shaft (92) is located in the penetrating groove (322), the fixed shaft (92) and the penetrating groove (322) are connected in a rotary sealing mode, and the inside of one fixed shaft (92) is provided with an inner gas pipe (93), and the inner gas pipe (93) is in communication with the inside of the penetrating groove (322).

Images