Printing ink waste gas treatment equipment for printing equipment

Abstract

The invention belongs to the technical field of air pollution treatment, and particularly relates to printing ink waste gas treatment equipment for printing equipment, the printing ink waste gas treatment equipment comprises a printing machine, a gas collecting cover and a waste gas conveying pipe, the end part of the waste gas conveying pipe is connected with a spraying box through a pipeline, and one side of the spraying box is connected with a suspended filtering pipeline through a pipeline; a gas flow guiding component is movably mounted on the outer side of the gas collecting cover, fixed-point waste gas treatment components are fixedly mounted on the two sides of the gas flow guiding component, and waste gas is conveyed into the gas flow guiding component through a path of an activated carbon filter and a gas guide pipe through arrangement of a centrifugal compressor and guided by the gas flow guiding component; a large amount of waste gas is blown to the direction where the gas collecting cover is located and collected by the gas collecting cover, the waste gas firstly passes through the activated carbon filter, the activated carbon filter can adsorb and separate organic molecules in the waste gas, and then the waste gas is conveyed into the spraying box and the suspended filtering pipeline through the pipeline for follow-up treatment.

Description

Technical Field

[0001] The invention belongs to the field of air pollution treatment, in particular to an ink waste gas treatment device for printing equipment. Background Art

[0002] Printing equipment is a device used to transfer text, images or other patterns to substrates through the printing process. Modern printing equipment is a high-tech equipment developed based on ancient printing technology. Printing equipment usually uses ink to complete the process of transferring graphic information to the substrate during the printing process. However, the use of printing ink will cause the ink to evaporate in the air, causing volatile organic compound pollution, and then forming waste gas that spreads into the atmosphere, which not only affects the surrounding environment, but also easily causes harm to human health.

[0003] A patent document with publication number CN214552217U discloses a printing waste gas treatment device, including an air suction device and an air suction hood installed on a printing press. 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 provided on the spray box, and a filter plate is provided in the filter box.

[0004] In the traditional technical solution, a gas collection structure is installed above the printing equipment to collect the waste gas generated by the ink when the equipment is running. The waste gas is then treated by various methods such as spraying and filtration. In the traditional technology, the gas collection structure is set at a higher position above the printing equipment. This layout is a typical elevated gas collection, which will cause the waste gas to rise slowly and be collected. However, this method is not convenient for absorbing the waste gas generated by the ink of the printing equipment during immediate operation. Due to the diffusion characteristics of the waste gas, the waste gas generated immediately will be mixed and diluted with the surrounding air during the slow rising process, resulting in a decrease in the waste gas concentration and an expansion of the distribution range. As a result, the waste gas generated immediately may still evaporate into the surrounding environment and cause air pollution. In the process of the waste gas being captured by the gas collection structure, the staff will still be affected by part of the waste gas, which will affect their health.

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

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: an ink waste gas treatment device for printing equipment described in the present invention comprises a printing press and a gas collection hood covering and arranged directly above the printing press, a universal gas pipe is fixedly installed on the top of the gas collection hood, an exhaust gas transmission pipe is fixedly installed on one end of the universal gas transmission pipe, the exhaust gas transmission pipe is suspended and installed on the wall of a building through a pipe clamp, the exhaust gas transmission pipe is located above the printing press, a plurality of the printing press, the gas collection hood and the universal gas transmission pipe are each provided, one end of the plurality of universal gas transmission 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, one side of the spray box is connected to a hanging filter pipe through a pipe, and the end of the hanging filter pipe is provided with a pump body for sucking gas; An airflow guiding component is movably installed on the outside of the gas collection hood, and 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 on the end of the fixed outer shell, and the air guide pipe is connected to the spray box.

[0008] Preferably, the distance between the activated carbon filter and the air duct is greater than the distance between the impeller and the air duct, a plurality of air grooves are evenly distributed on the outside of the air ring, and a cavity is provided inside the air ring for air to enter.

[0009] Preferably, a fixing bar is fixedly installed on one side of the gas collection cover, and a plurality of steering universal tubes are fixedly installed on one side of the fixing bar, and the lower ends of the plurality of steering universal tubes are connected to the airflow guiding component.

[0010] Preferably, the airflow guiding member includes a rotating plate and a plurality of strip-shaped member grooves extending through the rotating plate, and the guide members are fixedly installed inside the plurality of strip-shaped member grooves.

[0011] Preferably, the guide member includes an air guide ring fixedly installed at the bottom of the strip member groove, an air storage ring fixedly installed inside the air guide ring, a connecting pipe fixedly installed on the outside of one end of the air storage ring, the connecting pipe passes through the rotating plate and is connected to the corresponding air guide pipe, and a hidden pipe is fixedly installed on the outside of the other end of the air storage ring.

[0012] Preferably, a gas delivery cavity is provided between the gas storage ring and the gas guide ring. The gas delivery cavity is formed by the combination of the gas storage ring and the gas guide ring, and the gas inside the gas guide tube is guided into the gas delivery cavity.

[0013] Preferably, a barrier ring is fixedly installed on the bottom of the gas storage ring, and a U-shaped ring is fixedly installed on the bottom of the gas guide ring. The barrier ring is used to delay the time for the gas inside the connecting pipe to flow through the gap between the U-shaped ring and the barrier ring.

[0014] Preferably, the thickness of the inner top cavity of the gas delivery cavity is smaller 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.

[0015] Preferably, a rotating bead is fixedly installed at the bottom of the steering universal tube, and the rotating bead is located on one side of the airflow guide component. The rotating bead and the interior of the steering universal tube are both hollow. One end of the steering universal tube passes through the fixing bar and is connected to the interior of the gas collection cover, and a through groove is opened inside the rotating bead.

[0016] Preferably, a plurality of rotating components are installed on the outside of the airflow guiding component, and the rotating components include two fixed blocks fixedly installed on one side of the airflow guiding component, and fixed shafts are fixedly installed on opposite sides of the two fixed blocks, and the fixed shafts are located inside the through-groove. A rotary seal is used to connect the fixed shafts and the through-groove, and an inner air pipe is installed inside one of the fixed shafts, and the inner air pipe is communicated with the inside of the through-groove.

[0017] The beneficial effects of the present invention are as follows: 1. The ink waste gas treatment device for printing equipment described in the present invention is arranged by placing a fixed waste gas treatment component around the place where a large amount of waste gas is generated when the printing machine is in operation. Through the arrangement of the centrifugal compressor and the cooperation with the impeller, the surrounding air and the waste gas generated immediately are quickly transported from the air groove of the breathable ring to the interior of the fixed waste gas treatment component. The waste gas is transmitted to the interior of the air flow guide component through the path of the fixed shell, the activated carbon filter and the air guide pipe. The air flow guide component guides the waste gas so that a large amount of waste gas is blown in the direction of the gas collection cover and is collected by the gas collection cover. The waste gas will first pass through the activated carbon filter, which can adsorb and separate organic molecules in the waste gas, significantly reducing odor. The waste gas collected by the gas collection cover will be integrated and transported through the waste gas transmission pipe and transported to the interior of the spray box through the pipeline. The spray liquid can absorb water-soluble pollutants in the waste gas. The waste gas after spraying is transported to the interior of the suspended filter pipe through the pipeline. The interior of the suspended filter pipe is provided with multiple filtering structures. The filtering structure usually uses high-efficiency filter materials to deeply purify the waste gas.

[0018] 2. The ink waste gas treatment equipment for printing equipment described in the present invention will first accumulate gas after entering the gas transmission cavity. After the gas transmission cavity is almost full, the waste gas will be released through the gap between the barrier ring and the U-shaped ring, that is, the waste gas will be released in a ring shape through the setting of the guide member. At this time, the guide member is positioned toward the gas collection hood through the setting of the steering universal tube. The waste gas released in a ring shape will be 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 will only be released from one direction. When the guide member is tilted upward toward the gas collection hood, the waste gas will be released tilted upward, and the position of the other side of the guide member facing the direction of the printing press will not be impacted by the released air, which can speed up the collection efficiency of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is an overall stereogram of the present invention; Figure 2 It is a three-dimensional schematic diagram of the gas collection hood and the printing press in the present invention; Figure 3 It is a three-dimensional schematic diagram of the airflow guide component and the fixed-point exhaust gas treatment component in the present invention; Figure 4 It is a three-dimensional schematic diagram of the steering universal tube and the airflow guide component in the present invention; Figure 5 This is a disassembled three-dimensional schematic diagram of the fixed-point exhaust gas treatment component in the present invention; Figure 6 It is a three-dimensional schematic diagram of the airflow guide component in the present invention; Figure 7 It is a three-dimensional schematic diagram of the gas storage ring and the gas guide ring in the present invention; Figure 8 It is a three-dimensional schematic diagram of the barrier ring and the U-shaped ring in the present invention; Figure 9 It is a three-dimensional schematic diagram of the rotating component in the present invention.

[0021] In the figure: 1. exhaust gas transmission pipe; 2. universal gas transmission pipe; 3. gas collection hood; 31. fixing strip; 32. steering universal pipe; 321. rotating bead; 322. through-groove; 33. air flow guiding component; 331. rotating plate; 332. strip component groove; 4. printing press; 5. spray box; 6. hanging filter pipe; 7. fixed-point exhaust gas treatment component; 71. fixed shell; 72. activated carbon filter; 73. centrifugal compressor; 74. impeller; 75. breather ring; 76. air guide pipe; 8. guide component; 81. air storage ring; 811. barrier ring; 82. air guide ring; 821. U-shaped ring; 83. connecting pipe; 84. hidden pipe; 85. gas transmission cavity; 9. rotating component; 91. fixing block; 92. fixed shaft; 93. inner air pipe. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] Example 1: Figure 1-5 As shown, an ink waste gas treatment device for a printing device according to an embodiment of the present invention includes a printing machine 4 and a gas collection hood 3 covering and arranged directly above the printing machine 4. A universal gas pipe 2 is fixedly installed on the top of the gas collection hood 3, and an exhaust gas transmission pipe 1 is fixedly installed on one end of the universal gas transmission pipe 2. The exhaust gas transmission pipe 1 is suspended on the wall of a building through a pipe clamp. The exhaust gas transmission pipe 1 is located above the printing machine 4. The printing machine 4, the gas collection hood 3 and the universal gas pipe 2 are all provided in plurality. One end of the plurality of universal gas 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. One side of the spray box 5 is connected to a hanging filter pipe 6 through a pipe. The end of the hanging filter pipe 6 is provided with a pump body for sucking gas. An airflow guiding component 33 is movably installed on the outside of the gas collection hood 3, and fixed-point exhaust gas treatment components 7 are fixedly installed on both sides of the airflow guiding component 33. The fixed-point 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, and the air guide pipe 76 is connected to the spray box 5.

[0024] Specifically, when the printing machine 4 is running, ink is used to complete the process of transferring graphic information to the printing material. However, the use of printing ink will cause the ink to volatilize in the air, causing volatile organic compound pollution, and then forming waste gas that spreads into the atmosphere. Therefore, a gas collection hood 3 is installed in the air directly above the printing machine 4. Under the action of an external gas suction pump, the gas collection hood 3 will generate a suction force, causing the waste gas generated by the volatilization of the ink when the printing machine 4 is working to rise until it is collected by the gas collection hood 3. In order not to affect the normal operation of the printing machine 4, the suction power of the gas collection hood 3 cannot be too large. Otherwise, excessive suction may interfere with the printing process, affect the normal drying and shaping of the ink, cause the ink to deform, and affect printing. The quality of the gas collection hood 3 is poor, and the overhead 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 its generation. The immediate volatile waste gas generated by the printing machine 4 when it is working may be mixed with the outside air, thereby affecting the surrounding environment and causing air pollution. In this device, an air flow guide 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 air flow guide component 33. The fixed-point waste gas treatment components 7 can be placed around the place where a large amount of waste gas is generated when the printing machine 4 is working. Through the setting of the centrifugal compressor 73 and the cooperation of the impeller 74, the surrounding air and the immediately generated waste gas are quickly discharged from the breathable ring 7 5 enters the interior of the fixed exhaust gas treatment component 7, and the exhaust gas is transmitted to the interior of the air flow guide component 33 through the path of the fixed shell 71, the activated carbon filter 72 and the air guide pipe 76. The air flow guide component 33 guides the exhaust gas so that a large amount of exhaust gas is blown in the direction of the gas collection cover 3 and is collected by the gas collection cover 3. The exhaust gas will first pass through the activated carbon filter 72, which can absorb and separate organic molecules in the exhaust gas, significantly reduce odor, and improve the surrounding working environment. The air guide pipe 76 is a pipe that can be bent and deformed, so the fixed shell 71 can be easily changed in position. The position where the exhaust gas is generated but does not affect the normal drying of the ink during printing is selected, and the fixed exhaust gas treatment component 7 is placed in these positions, which can be used to treat the immediate production. The generated waste gas is collected and processed, and the odor is reduced while preventing the waste gas from spreading to the surrounding environment when it is not collected by the gas collection cover 3. The waste gas collected by the gas collection cover 3 will be integrated and transported through the waste gas transmission pipe 1, and transported to the inside of the spray box 5 through the pipeline. The spray liquid inside the spray box 5 is usually water or an alkaline solution and is in full contact with the waste gas to realize a gas-liquid two-phase mass transfer process. The spray liquid can absorb water-soluble pollutants in the waste gas. The waste gas after spraying is transported to the inside of the hanging filter pipe 6 through the pipeline. The inside of the hanging filter pipe 6 is provided with multiple filtering structures. The filtering structure usually uses high-efficiency filter materials to deeply purify the waste gas. The filter material can intercept the fine particles remaining in the waste gas and the organic matter not absorbed by the spray liquid.The ink waste gas generated by the printing machine 4 during operation is processed through multiple steps so that the ink waste gas does not affect the surrounding environment and cause air pollution.

[0025] like Figure 2-4 and Figure 6 As shown, the distance between the activated carbon filter 72 and the air duct 76 is greater than the distance between the impeller 74 and the air duct 76, a plurality of air grooves are evenly distributed on the outside of the air ring 75, and a cavity is set inside the air ring 75 for air to enter.

[0026] A fixing bar 31 is fixedly mounted on one side of the gas collection cover 3 , and a plurality of steering universal tubes 32 are fixedly mounted on one side of the fixing bar 31 . The lower ends of the plurality of steering universal tubes 32 are connected to an airflow guiding member 33 .

[0027] The airflow guiding member 33 includes a rotating plate 331 and a plurality of strip-shaped member slots 332 extending through the rotating plate 331 . The guide members 8 are fixedly installed in the plurality of strip-shaped member slots 332 .

[0028] Specifically, the gas collection hood 3 is connected to the airflow guiding component 33 through the steering universal tube 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 exhaust 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 steering universal tube 32, the airflow guiding component 33 can change its position on the outside of 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 transported by the air guide pipe 76 at 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 exhaust gas generated immediately is quickly collected by the gas collection hood 3.

[0029] 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 outside 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, and a hidden pipe 84 is fixedly installed on the outside of the other end of the air storage ring 81.

[0030] A gas delivery cavity 85 is defined between the gas storage ring 81 and the gas guide ring 82 . The gas delivery cavity 85 is formed by the combination of the gas storage ring 81 and the gas guide ring 82 . The gas in the gas guide tube 76 is guided into the gas delivery cavity 85 .

[0031] 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.

[0032] The thickness of the inner top cavity of the gas delivery cavity 85 is smaller 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 .

[0033] Specifically, the exhaust gas sucked by the fixed-point exhaust gas treatment component 7 is transported to the interior of the gas delivery cavity 85 through the air guide pipe 76 and the connecting pipe 83. First, the gas will be at the inner top of the gas delivery cavity 85 and gradually move to the inner bottom of the gas delivery cavity 85. Due to the setting of the barrier ring 811, the width of the gap between the barrier ring 811 and the U-shaped ring 821 is small. Therefore, after the gas enters the gas delivery cavity 85, it will first accumulate until the inside of the gas delivery cavity 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 shape. At this time, through the setting of the steering universal tube 32, the position of the guide component 8 is directed towards the gas collection cover 3, and the exhaust gas released in a ring shape will be transported to the direction of the gas collection cover 3, and then collected by the gas collection cover 3. Through the setting of the guide component 8, the gas will only be released from Release in one direction. When the guide member 8 is tilted upward toward the gas collection hood 3, the exhaust gas will be released tilted upward, while the other side of the guide member 8 facing the printing machine 4 will not be impacted by the released air, which can speed up the collection efficiency of the exhaust gas. According to the principles of aerodynamics, the air needs to maintain continuity during the flow. When the guide member 8 blows air tilted upward, the air is blown out from the annular opening to form a forward airflow. In order to maintain the continuity of the air, the surrounding air will be pulled in to fill the gap, thereby generating a certain amount of suction behind the guide member 8. This suction phenomenon is relatively mild, and the airflow guiding member 33 can be placed at the head position of the staff. When the exhaust gas is guided to the gas collection hood 3, the slight suction effect behind the guide member 8 can take away the exhaust gas at the head position of the staff, thereby minimizing the harm caused by the exhaust gas to the staff.

[0034] Example 2: Figure 9 As shown, in contrast to Example 1, another embodiment of the present invention is: a rotating bead 321 is fixedly installed at the bottom of the steering universal tube 32, and the rotating bead 321 is located on one side of the airflow guide component 33. The rotating bead 321 and the interior of the steering universal tube 32 are both hollow. One end of the steering universal tube 32 passes through the fixed bar 31 and is connected to the interior of the gas collection cover 3, and a through groove 322 is opened inside the rotating bead 321.

[0035] A plurality of 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. A fixed shaft 92 is fixedly installed on the opposite side of the two fixed blocks 91. The fixed shaft 92 is located inside the through groove 322. The fixed shaft 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, and the inner air pipe 93 is connected to the inside of the through groove 322.

[0036] Specifically, the through slot 322 provided at the lower end of the steering universal tube 32 cooperates with the fixed shaft 92, so that the rotating plate 331 can rotate on the outside of the through slot 322, thereby changing its rotation angle. The setting of the two steering universal tubes 32 allows the airflow guide member 33 to change its spatial position, thereby allowing the airflow guide member 33 to find a suitable working position. A hidden tube 84 is provided on the outside of the guide member 8. The hidden tube 84 is hidden inside the rotating plate 331 and is 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 slot 322. The gas collection hood 3 itself has a certain suction effect. , and the stronger the exhaust gas suction force above the printing machine 4, the greater the force of the annular air outlet of the guide member 8, the easier it is to disrupt the air flow above the printing machine 4. When the gas collection hood 3 is sucking, part of the exhaust gas will rise, and the rising exhaust gas and the annular exhaust gas will collide violently, which may easily cause air flow impact to affect the normal operation of the printing machine 4. In this device, part of the gas inside the gas delivery cavity 85 is transmitted to the through groove 322 and the steering universal tube 32 through the hidden tube 84 and the inner air pipe 93, that is, it is directly guided to the inside of the gas collection hood 3, which reduces the gas impact force on the path of the guide member 8 toward the gas collection hood 3, and avoids gas turbulence affecting the printing work.

[0037] Working principle: When the printing machine 4 is running, it will use ink to complete the process of transferring graphic information to the substrate. However, the use of printing ink will cause the ink to volatilize in the air, causing volatile organic compound pollution, and then forming waste gas that spreads into the atmosphere. Therefore, a gas collection cover 3 is installed in the air directly above the printing machine 4. Under the action of the external gas suction pump, the gas collection cover 3 will generate a suction force, causing the waste gas generated by the volatilization of the ink when the printing machine 4 is working to rise until it is collected by the gas collection cover 3. In order not to affect the normal operation of the printing machine 4, the suction power of the gas collection cover 3 cannot be too large. Otherwise, excessive suction may interfere with the printing process, affect the normal drying and shaping of the ink, cause the ink to deform, and affect printing. The quality of the gas collection hood 3 is poor, and the overhead 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 its generation. The immediate volatile waste gas generated by the printing machine 4 when it is working may be mixed with the outside air, thereby affecting the surrounding environment and causing air pollution. In this device, an air flow guide 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 air flow guide component 33. The fixed-point waste gas treatment components 7 can be placed around the place where a large amount of waste gas is generated when the printing machine 4 is working. Through the setting of the centrifugal compressor 73 and the cooperation of the impeller 74, the surrounding air and the immediately generated waste gas are quickly discharged from the breathable ring 7 5 enters the interior of the fixed exhaust gas treatment component 7, and the exhaust gas is transmitted to the interior of the air flow guide component 33 through the path of the fixed shell 71, the activated carbon filter 72 and the air guide pipe 76. The air flow guide component 33 guides the exhaust gas so that a large amount of exhaust gas is blown in the direction of the gas collection cover 3 and is collected by the gas collection cover 3. The exhaust gas will first pass through the activated carbon filter 72, which can absorb and separate organic molecules in the exhaust gas, significantly reduce odor, and improve the surrounding working environment. The air guide pipe 76 is a pipe that can be bent and deformed, so the fixed shell 71 can be easily changed in position. The position where the exhaust gas is generated but does not affect the normal drying of the ink during printing is selected, and the fixed exhaust gas treatment component 7 is placed in these positions, which can be used to treat the immediate production. The generated waste gas is collected and processed, and the odor is reduced while preventing the waste gas from spreading to the surrounding environment when it is not collected by the gas collection cover 3. The waste gas collected by the gas collection cover 3 will be integrated and transported through the waste gas transmission pipe 1, and transported to the inside of the spray box 5 through the pipeline. The spray liquid inside the spray box 5 is usually water or an alkaline solution and is in full contact with the waste gas to realize a gas-liquid two-phase mass transfer process. The spray liquid can absorb water-soluble pollutants in the waste gas. The waste gas after spraying is transported to the inside of the hanging filter pipe 6 through the pipeline. The inside of the hanging filter pipe 6 is provided with multiple filtering structures. The filtering structure usually uses high-efficiency filter materials to deeply purify the waste gas. The filter material can intercept the fine particles remaining in the waste gas and the organic matter not absorbed by the spray liquid.The ink waste gas generated when the printing machine 4 is working is treated through multiple steps, so that the ink waste gas will not affect the surrounding environment and cause air pollution. The waste gas sucked by the fixed waste gas treatment component 7 is transported to the inside of the gas delivery cavity 85 through the air guide pipe 76 and the connecting pipe 83. First, the gas will be at the top of the gas delivery cavity 85 and gradually move to the bottom of the gas delivery cavity 85. Due to the setting of the barrier ring 811, the width of the gap between the barrier ring 811 and the U-shaped ring 821 is small. Therefore, after the gas enters the gas delivery cavity 85, it will first accumulate until the gas delivery cavity 85 is almost full. The waste 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 waste gas is released in a ring shape. At this time, through the setting of the steering universal tube 32, the position of the guide component 8 is directed towards the gas collection cover 3, and the waste gas released in the ring shape will be transported to the direction of the gas collection cover 3, and then be collected by the gas collection cover 3 To collect the waste gas, the guide member 8 is set up so that the gas is released from only one direction. When the guide member 8 is tilted upward toward the gas collection hood 3, the waste gas will be released tilted upward, while the other side of the guide member 8 facing the printing press 4 will not be impacted by the released air, which can speed up the collection efficiency of the waste gas. According to the principles of aerodynamics, the air needs to maintain continuity during the flow process. When the guide member 8 blows air tilted 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 in to fill the gap, thereby generating a certain amount of suction behind the guide member 8. This suction phenomenon is relatively mild, so the airflow guide member 33 can be placed at the head position of the staff. When the waste gas is directed to the gas collection hood 3, the slight suction effect behind the guide member 8 can take away the waste gas at the head position of the staff, minimizing the harm caused by the waste gas to the staff.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An ink waste gas treatment device for a printing device, comprising a printing machine (4) and a gas collection hood (3) covering and arranged directly above the printing machine (4), wherein a universal gas 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 transmission pipe (2), the exhaust gas transmission pipe (1) is suspended and installed on the wall of a building through a pipe clamp, and the exhaust gas transmission pipe (1) is located above the printing machine (4), characterized in that: The printing machine (4), the gas collection cover (3) and the universal gas pipe (2) are all provided in plurality, one end of each of the plurality of universal gas 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) via a pipe, one side of the spray box (5) is connected to a hanging filter pipe (6) via a pipe, and the end of the hanging filter pipe (6) is provided with a pump body for sucking gas; An airflow guide component (33) is movably mounted on the outer side of the gas collection hood (3), and fixed-point exhaust gas treatment components (7) are fixedly mounted on both sides of the airflow guide component (33). The fixed-point exhaust gas treatment component (7) includes a fixed shell (71) and a breathable ring (75) fixedly mounted inside the fixed shell (71). An activated carbon filter (72) and a centrifugal compressor (73) are fixedly mounted inside the fixed shell (71), and an impeller (74) is movably mounted inside the centrifugal compressor (73). An air guide pipe (76) is fixedly mounted at the end of the fixed shell (71), and the air guide pipe (76) is connected to the spray box (5).

2. The ink waste gas treatment device for printing equipment according to claim 1, characterized in that: The distance between the activated carbon filter (72) and the air guide tube (76) is greater than the distance between the impeller (74) and the air guide tube (76). A plurality of air grooves are evenly distributed on the outside of the air permeable ring (75). A cavity is provided inside the air permeable ring (75) for air to enter.

3. The ink waste gas treatment device for printing equipment according to claim 1, characterized in that: A fixing bar (31) is fixedly mounted on one side of the gas collection cover (3), and a plurality of steering universal tubes (32) are fixedly mounted on one side of the fixing bar (31), wherein the lower ends of the plurality of steering universal tubes (32) are connected to an airflow guiding component (33).

4. The ink waste gas treatment device for printing equipment according to claim 1, characterized in that: The airflow guiding component (33) comprises a rotating plate (331) and a plurality of strip-shaped component grooves (332) extending through the interior of the rotating plate (331), wherein guide components (8) are fixedly installed inside the plurality of strip-shaped component grooves (332).

5. The ink waste gas treatment device for printing equipment according to claim 4, characterized in that: The guide member (8) comprises an air guide ring (82) fixedly mounted on the bottom of the strip member groove (332); an air storage ring (81) is fixedly mounted inside the air guide ring (82); a connecting pipe (83) is fixedly mounted on the outside 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); and a hidden pipe (84) is fixedly mounted on the outside of the other end of the air storage ring (81).

6. The ink waste gas treatment device for printing equipment according to claim 5, characterized in that: 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 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).

7. The ink waste gas treatment device for printing equipment according to claim 6, characterized in that: A barrier ring (811) is fixedly mounted on the bottom of the gas storage ring (81), and a U-shaped ring (821) is fixedly mounted on 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).

8. The ink waste gas treatment device for printing equipment according to claim 7, characterized in that: The thickness of the inner top cavity of the gas delivery cavity (85) is smaller than the thickness of the inner bottom cavity of the gas delivery cavity (85), and 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-shaped component groove (332).

9. The ink waste gas treatment device for printing equipment according to claim 3, characterized in that: A rotating bead (321) is fixedly mounted on the bottom of the steering universal tube (32). The rotating bead (321) is located on one side of the airflow guide component (33). The interiors of the rotating bead (321) and the steering universal tube (32) are both hollow. One end of the steering universal tube (32) passes through the fixing bar (31) and is connected to the interior of the gas collection cover (3). A through groove (322) is provided through the interior of the rotating bead (321).

10. The ink waste gas treatment device for printing equipment according to claim 9, characterized in that: A plurality of rotating components (9) are installed on the outside of the airflow guiding component (33), and the rotating components (9) include two fixed blocks (91) fixedly installed on one side of the airflow guiding component (33). A fixed shaft (92) is fixedly installed on the opposite side of the two fixed blocks (91). The fixed shaft (92) is located inside the through groove (322). A rotary seal is used to connect the fixed shaft (92) and the through groove (322). An inner air pipe (93) is installed inside one of the fixed shafts (92), and the inner air pipe (93) is connected to the inside of the through groove (322).

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