Printing machine waste gas treatment device and treatment method

Abstract

The invention relates to the technical field of waste gas treatment, and provides a printing machine waste gas treatment device and method.The printing machine waste gas treatment device comprises a waste gas treatment box, a slope-shaped partition frame and a communication pipeline, and one side of the waste gas treatment box communicates with a waste gas inlet assembly; the slope type partition frame is fixedly connected in the waste gas treatment box body, the slope type partition frame divides the interior of the waste gas treatment box body into a drying and cooling chamber and a spraying treatment chamber, electrostatic dust collection equipment is arranged between the drying and cooling chamber and the spraying treatment chamber, an exhaust fan is arranged on one side of the spraying treatment chamber, and an exhaust fan is arranged on the other side of the spraying treatment chamber. A plurality of waste gas cooling mechanisms are communicated with the sides, close to the slope-shaped partition frame, of the communicating pipelines, and the waste gas cooling mechanisms are arranged on the slope-shaped partition frame in a penetrating mode. According to the technical scheme, the problem that waste gas treatment equipment in the prior art is difficult to deal with various different waste gases is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device and a treatment method for a printing press. Background Art

[0002] Printing press is a machine used for printing text and images in the prior art. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing and paper feeding, which are used to complete the printing operation on paper. During the working process of the printing press, because the ink, diluent and dampening oil in the printing press contain a lot of organic solvents, therefore, during the entire printing process of the printing press, during the inking, drying and cleaning operations of the printing press, due to the volatility of liquids such as ink, it is easy to produce some waste gas containing irritating substances, causing harm to the surrounding environment and workers.

[0003] During the use of large-scale printing presses in the prior art, people usually equip special exhaust gas treatment devices to treat the exhaust gas during the use of the printing press. Common equipment for treating exhaust gas includes activated carbon adsorption method and spraying method, which have small limitations in use and low operating costs. However, in the process of treating exhaust gas, the components of exhaust gas generated by different processes of the printing press and the temperature of the exhaust gas itself are not the same. For example, the exhaust gas generated by the inking process will contain a large amount of dust and particulate matter, and the exhaust gas after the drying process has a certain temperature. Therefore, there are certain differences in the exhaust gas generated in different areas of the printing press. For exhaust gas with different temperatures and components, targeted exhaust gas treatment equipment is required, and commonly used exhaust gas treatment equipment is difficult to cope with a variety of different exhaust gases. Summary of the invention

[0004] The present invention provides a printing press waste gas treatment device and a treatment method, which solves the problem that waste gas treatment equipment in the related art is difficult to handle a variety of different waste gases.

[0005] The technical solution of the present invention is as follows: A printing machine waste gas treatment device includes a waste gas treatment box, one side of the waste gas treatment box is connected to a waste gas inlet component, and also includes: A sloped partition frame, the sloped partition frame is fixedly connected to the exhaust gas treatment box, the sloped partition frame divides the interior of the exhaust gas treatment box into a drying and cooling chamber and a spray treatment chamber, an electrostatic dust removal device is arranged between the drying and cooling chamber and the spray treatment chamber, and an exhaust fan is arranged on one side of the spray treatment chamber; A communicating pipe, wherein the number of the communicating pipes is set to be multiple, and the communicating pipe is connected to multiple exhaust gas cooling mechanisms on one side close to the slope partition frame, and the exhaust gas cooling mechanisms are arranged through the slope partition frame, and a movable drainage component is slidably arranged in the multiple communicating pipes, and a driving drainage component is arranged between the exhaust gas treatment box and the multiple movable drainage components; A spray processing assembly, wherein a plurality of the spray processing assemblies are connected and arranged on the area of ​​the connecting pipe located in the spray processing chamber.

[0006] In order to transport exhaust gas to the inside of the spray treatment chamber and the drying and cooling chamber, further, the exhaust gas inlet component includes an exhaust gas channel and a transfer pipe. The exhaust gas channel is connected to the spray treatment chamber, and the transfer pipe is connected between the exhaust gas channel and the drying and cooling chamber. A valve is arranged on the transfer pipe, and a negative pressure fan is arranged on the top of the transfer pipe.

[0007] In order to carry out preliminary treatment of the exhaust gas entering the drying and cooling chamber and the spray treatment chamber, further, the exhaust gas cooling mechanism includes a water injection cylinder, a water injection pipe, heat dissipation fins and a water seepage cooling component. The water injection cylinder is fixedly connected to the sloped partition frame, and a plurality of water injection pipes are arranged inside the water injection cylinder. The water injection pipes are connected to the connecting pipe, and the bottom of the water injection pipe extends into the inner bottom of the water injection cylinder. The water injection cylinder is fixedly connected to a plurality of the heat dissipation fins in the area where the water injection cylinder is located in the drying and cooling chamber, and is connected to a plurality of the water seepage cooling components in the area where the water injection cylinder is located in the spray treatment chamber.

[0008] In order to discharge the water in the water injection cylinder, it further includes a drain valve, and the bottom of the water injection cylinder is connected to the drain valve, wherein the inner bottom wall of the drying and cooling chamber is set to be sloped, and the inner bottom wall of the drying and cooling chamber is connected to a discharge trough.

[0009] In order to cool down the exhaust gas and reduce dust, based on the above scheme, the water seepage cooling component includes a water seepage pipe, a plurality of the water seepage pipes are fixedly connected through the water injection cylinder, a plurality of installation ports are opened on the water seepage pipe, and a water supply filter element is arranged in the installation port.

[0010] In order to add water to the corresponding area in the connecting pipe, on the basis of the present solution, the mobile drainage assembly includes a sliding sleeve and a drainage cylinder. A sliding groove is provided on the inner wall of the connecting pipe. The sliding sleeve is slidably connected to the sliding groove. An elastic sealing sleeve is provided on the sliding sleeve. The side wall of the elastic sealing sleeve is fitted between the connecting pipe and the sliding groove. The drainage cylinder is fixedly connected in the sliding sleeve. A drainage outlet is connected to the side of the drainage cylinder close to the exhaust gas channel.

[0011] In order to adjust the position of the drainage cylinder, on the basis of the present solution, further, the drainage driving assembly includes a movable slide rail, an installation water tank, a water delivery pipe and a connecting rope, the movable slide rails are fixedly connected to both sides of the top of the exhaust gas treatment box, a moving device is arranged between the two movable slide rails, the installation water tank is fixedly connected to the moving device, a water delivery pump is arranged in the installation water tank, a water supply cylinder is fixedly connected in the installation water tank, the output end of the water delivery pump is connected to the water supply cylinder, the water supply cylinder and one side of the plurality of drainage cylinders are connected by the water delivery pipe, and a connecting rope is fixedly connected between the moving device and the other side of the plurality of drainage cylinders.

[0012] In order to control the moving path of the water delivery pipe and the connecting rope, on the basis of the present solution, further, it also includes a guide cylinder and a bending conveying frame with a bending function, the installation water tank and the mobile device corresponding to the water delivery pipe and the connecting rope are fixedly connected with the guide cylinder, the water delivery pipe and the connecting rope are one-to-one corresponding to the guide cylinder, the water delivery pipe and the connecting rope are both located in the corresponding guide cylinder, the top two sides of the exhaust gas treatment box are fixedly connected with the bending conveying frame, the water delivery pipe or the connecting rope are slidably set in the corresponding bending conveying frame.

[0013] In order to treat the exhaust gas in the spray treatment chamber, on the basis of the present solution, further, the spray treatment component includes an installation water pipe, the installation water pipe is connected to the connecting pipe, and the bottom of the installation water pipe is connected to a plurality of spray heads.

[0014] A method for treating waste gas from a printing press, using the above-mentioned waste gas treatment device from a printing press, comprises the following steps: The working principle and beneficial effects of the present invention are: 1. In the present invention, when it is necessary to carry out targeted treatment of the waste gas generated by the different process equipment in the printing machine, firstly, when the waste gas with high temperature and high dust passes through the waste gas channel, the waste gas with high temperature and high dust is transported to the drying and cooling chamber through the transfer pipeline, and water is added to the water injection cylinder so that the waste gas passes between multiple water injection cylinders, and the waste gas is cooled, and then the waste gas enters the electrostatic dust removal equipment during the transportation process, and then the dust in the waste gas is removed, and then the waste gas is transported to the spray treatment chamber for spray treatment, and the high temperature and low dust waste gas can be directly transported to the spray treatment chamber through the waste gas channel, and then the water seepage cooling component is used to treat the waste gas temperature and a large amount of dust, and then the spray treatment component is used to treat the waste gas; 2. In the present invention, since the amount of waste gas generated by the printing press at different working periods is not consistent, when the amount of waste gas to be treated is small, the flow direction of the spray agent in the connecting pipe can be adjusted by adjusting the position of the drainage cylinder in the connecting pipe, thereby avoiding the operation of all the spray treatment components and effectively saving the use of the spray agent; Therefore, during actual use, the printing press waste gas treatment device can carry out targeted treatment according to the total amount and characteristics of waste gas generated by different processes of the printing press, realize the most optimal treatment method for waste gas, and save the use of spray agents. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 3 It is a partial cross-sectional structural diagram of the exhaust gas inlet assembly, the exhaust gas cooling mechanism, the exhaust gas treatment box and the sloped partition frame in the present invention; Figure 4 It is a schematic diagram of a partial cross-section of the structure of the exhaust gas inlet assembly, the exhaust gas cooling mechanism, the drive drainage assembly and the spray treatment assembly in the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point A in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 7 It is a partial cross-sectional structural diagram of the exhaust gas cooling mechanism, the mobile drainage assembly, the driven drainage assembly and the spray treatment assembly in the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at C in the middle; Fig. 9 It is a schematic diagram of the partial cross-section of the exhaust fan, the mounting bucket, the insertion tank and the activated carbon adsorption layer in the present invention.

[0017] In the figure: 100, exhaust gas inlet assembly; 200, exhaust gas cooling mechanism; 300, mobile drainage assembly; 400, drive drainage assembly; 500, spray treatment assembly; 1. Exhaust gas treatment box; 2. Sloped partition frame; 3. Drying and cooling chamber; 4. Spray treatment chamber; 5. Electrostatic dust removal equipment; 6. Exhaust fan; 7. Connecting pipe; 8. Exhaust gas channel; 9. Transfer pipe; 10. Negative pressure fan; 11. Water injection cylinder; 12. Water injection pipe; 13. Heat dissipation fins; 14. Drain valve; 15. Seepage pipe; 16. Water supply filter element; 17. Sliding sleeve; 18. Sliding trough; 19 , elastic sealing sleeve; 20, drainage cylinder; 21, drainage outlet; 22, movable slide rail; 23, mobile equipment; 24, installation of water tank; 25, water delivery pump; 26, water supply cylinder; 27, water delivery pipe; 28, connecting rope; 29, guide cylinder; 30, bending delivery frame; 31, installation of water pipe; 32, sprinkler head; 33, installation of bucket body; 34, insertion of trough body; 35, activated carbon adsorption layer; 36, water receiving bucket. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1, as Figures 1 to 9 As shown, this embodiment proposes a printing machine waste gas treatment device, including a waste gas treatment box 1, one side of the waste gas treatment box 1 is connected to a waste gas inlet component 100, the waste gas inlet component 100 includes a waste gas channel 8 and a transfer pipe 9, the waste gas channel 8 is connected to the spray treatment chamber 4, the waste gas channel 8 is connected to the drying and cooling chamber 3 by a transfer pipe 9, a valve is arranged on the transfer pipe 9, and a negative pressure fan 10 is arranged on the top of the transfer pipe 9. After the waste gas with high dust enters the waste gas channel 8, the valve on the transfer pipe 9 is opened to allow the waste gas to enter the drying and cooling chamber 3 through the waste gas channel 8, and then special cooling and dust removal operations are performed. For the waste gas with high temperature and low dust, the waste gas can be directly transported to the spray treatment chamber 4 to spray the pollutants in the waste gas.

[0020] It also includes a sloped partition frame 2, which is fixedly connected to the exhaust gas treatment box 1. The sloped partition frame 2 divides the interior of the exhaust gas treatment box 1 into a drying and cooling chamber 3 and a spray treatment chamber 4. An electrostatic dust removal device 5 is provided between the drying and cooling chamber 3 and the spray treatment chamber 4. The electrostatic dust removal device 5 is a prior art device used in the prior art to treat dust in the gas, and is a prior art device well known to those skilled in the art.

[0021] An exhaust fan 6 is provided on one side of the spray treatment chamber 4. The side of the spray treatment chamber 4 away from the sloped partition frame 2 is connected to a mounting bucket 33. The exhaust fan 6 is arranged in the mounting bucket 33. An insertion slot 34 is fixedly connected in the mounting bucket 33. The insertion slot 34 is located between the spray treatment chamber 4 and the exhaust fan 6. An activated carbon adsorption layer 35 is arranged in the insertion slot 34. After the waste gas from the spray treatment chamber 4 is treated, the exhaust fan 6 is started to attract the waste gas in the spray treatment chamber 4 toward the mounting bucket 33, and finally the treated waste gas is discharged through the mounting bucket 33. In order to further treat the waste gas, in the process of the waste gas being discharged through the mounting bucket 33, the waste gas is made to enter the mounting bucket 33 at a uniform speed, and fully contact with the activated carbon adsorption layer 35, so that the harmful substances in the waste gas are further removed.

[0022] The number of the connecting pipes 7 is set to be multiple, and the connecting pipes 7 are inclined in the direction of the sloped partition frame 2. The side of the connecting pipe 7 close to the sloped partition frame 2 is connected with multiple exhaust gas cooling mechanisms 200, and the exhaust gas cooling mechanisms 200 are arranged on the sloped partition frame 2. The exhaust gas cooling mechanisms 200 include a water injection cylinder 11, a water injection pipe 12, a heat dissipation fin 13 and a water seepage cooling component. The water injection cylinder 11 is fixedly connected to the sloped partition frame 2, and multiple water injection pipes 12 are arranged inside the water injection cylinder 11. The water injection pipes 12 are connected to the connecting pipe 7, and the bottom of the water injection pipe 12 extends into the inner bottom of the water injection cylinder 11. A plurality of heat dissipation fins 13 are fixedly connected to the area of ​​the water injection cylinder 11 located in the drying and cooling chamber 3, and a plurality of water seepage cooling components are connected to the area of ​​the water injection cylinder 11 located in the spray treatment chamber 4. After the high-dust exhaust gas is injected into the drying and cooling chamber 3, the spray agent enters the water injection cylinder 11 through the connecting pipe 7 and the water injection pipe 12. After the exhaust gas enters the drying and cooling chamber 3, the exhaust gas contacts the plurality of heat dissipation fins 13 on the water injection pipe 12. The exhaust gas is effectively cooled by the low temperature of the spray agent itself, so that the exhaust gas meets the requirements of entering the electrostatic dust removal equipment 5. It also includes a drain valve 14, and the bottom of the water injection cylinder 11 is connected to the drain valve 14, wherein the inner bottom wall of the drying and cooling chamber 3 is set to be sloped, and the inner bottom wall of the drying and cooling chamber 3 is connected to a discharge trough. After the temperature of the spray agent in the water injection cylinder 11 increases, the drain valve 14 is opened to discharge the spray agent into the drying and cooling chamber 3 through the water injection cylinder 11, so that the spray agent continues to be discharged through the discharge trough, and the spray agent is recycled. Because the inner bottom wall of the drying and cooling chamber 3 is set to be sloped, the discharged spray agent can enter the discharge trough more conveniently; The water seepage cooling component includes a water seepage pipe 15, and a plurality of water seepage pipes 15 are fixedly connected to the water injection cylinder 11. The water seepage pipe 15 is provided with a plurality of installation ports, and a water supply filter element 16 is arranged in the installation port. The exhaust gas with low dust content can directly enter the spray treatment chamber 4 through the exhaust gas channel 8. As the water injection pipe 12 gradually injects the spray agent into the water injection cylinder 11, the water level of the spray agent in the water injection cylinder 11 rises, and then the spray agent gradually enters the water seepage pipe 15 and passes through the water supply filter element 16 from the seepage treatment chamber 4. After being discharged from the water pipe 15, it starts to drip, and then the waste gas contacts the spray agent dripping from the seepage pipe 15. On the one hand, the temperature of the waste gas can be reduced to avoid the temperature of the waste gas being close to the temperature of the spray agent when the waste gas is subsequently sprayed. On the other hand, the large particles of dust in the waste gas can also be processed, so that the dust in the waste gas contacts the spray agent discharged from the seepage pipe 15 and directly falls onto the surface of the sloped partition frame 2. Then the spray agent mixes with the dust and also enters the water receiving bucket 36.

[0023] A mobile drainage assembly 300 is slidably arranged in each of the multiple communicating pipes 7. The mobile drainage assembly 300 includes a sliding sleeve 17 and a drainage cylinder 20. A sliding groove 18 is provided on the inner wall of the communicating pipe 7. The sliding sleeve 17 is slidably connected to the sliding groove 18. An elastic sealing sleeve 19 is provided on the sliding sleeve 17. The side wall of the elastic sealing sleeve 19 fits between the communicating pipe 7 and the sliding groove 18. The drainage cylinder 20 is fixedly connected in the sliding sleeve 17. A side of the drainage cylinder 20 close to the exhaust gas channel 8 is connected with a drainage port 21. In order to adjust the discharge position of the spray agent in the communicating pipe 7, the position of the drainage cylinder 20 in the communicating pipe 7 is adjusted. Through the sliding relationship between the sliding sleeve 17 and the sliding groove 18, the drainage cylinder 20 is moved to the corresponding position in the communicating pipe 7. After the spray agent enters the drainage cylinder 20, the spray agent is discharged into the communicating pipe 7 through the drainage port 21. The elastic sealing sleeve 19 is provided to prevent the spray agent from flowing back.

[0024] A driving drainage component 400 is arranged between the exhaust gas treatment box 1 and the plurality of mobile drainage components 300. The driving drainage component 400 includes a mobile slide rail 22, an installation water tank 24, a water delivery pipe 27 and a connecting rope 28. The top two sides of the exhaust gas treatment box 1 are fixedly connected with mobile slide rails 22. A mobile device 23 is arranged between the two mobile slide rails 22. The mobile device 23 is a mobile device 23 well known to those skilled in the art. A driving wheel is arranged on the mobile device 23. By driving the driving wheel to rotate, the mobile device 23 drives the installation water tank 24 and other components to move horizontally between the two mobile slide rails 22. The installation wheel is fixedly connected to the mobile device 23. A water tank 24 is provided with a water delivery pump 25 in the installation water tank 24, a water supply cylinder 26 is fixedly connected in the installation water tank 24, an output end of the water delivery pump 25 is connected with the water supply cylinder 26, a water delivery pipe 27 is connected between the water supply cylinder 26 and one side of the plurality of drainage cylinders 20, a connecting rope 28 is fixedly connected between the moving device 23 and the other side of the plurality of drainage cylinders 20, when the position of the drainage cylinder 20 needs to be adjusted, the water delivery pipe 27 or the connecting rope 28 is pulled during the movement of the moving device 23, and then the position of the drainage cylinder 20 is adjusted, and the lengths of the water delivery pipe 27 and the connecting rope 28 are close; Then, the pipeline for conveying the spray agent is connected to the input end of the conveying water pump 25, and the conveying water pump 25 is started to extract and convey the spray agent into the water supply cylinder 26, so that the spray agent finally enters the conveying water pipe 27 and the drainage cylinder 20.

[0025] The guide cylinder 29 and the connecting rope 28 are fixedly connected to the corresponding water pipes 27 and the connecting ropes 28 on the water tank 24 and the mobile device 23. The water pipes 27 and the connecting ropes 28 correspond to the guide cylinder 29 one by one. The water pipes 27 and the connecting ropes 28 are located in the corresponding guide cylinders 29. The top sides of the exhaust gas treatment box 1 are fixedly connected to the bending conveying frames 30. The water pipes 27 or the connecting ropes 28 are slidably arranged in the corresponding bending conveying frames 30. In order to ensure that the movement of the connecting rope 28 and the water pipe 27 remains vertical and longitudinally corresponding to each other, the guide cylinder 29 is used to ensure that the connecting rope 28 and the water pipe 27 are transported in a straight line. The bending conveying frame 30 is set to adjust the conveying height of the connecting rope 28 and the water pipe 27 so that the connecting rope 28 and the water pipe 27 correspond to the connection position height of the mobile device 23 and the water tank 24.

[0026] A plurality of spray treatment components 500 are connected and arranged on the area of ​​the connecting pipe 7 located in the spray treatment chamber 4. The spray treatment components 500 include an installed water pipe 31, which is connected to the connecting pipe 7. The bottom of the installed water pipe 31 is connected to a plurality of spray heads 32. The bottom of the spray treatment chamber 4 is connected to a water receiving bucket 36. Because there is still some recoverable organic solvent in the waste liquid after spray treatment, after the spray agent contacts the waste gas to form waste liquid, the waste liquid is collected by the water receiving bucket 36, and the water receiving bucket 36 is connected to a discharge pipe with a valve installed to discharge the waste liquid. When it is necessary to treat the waste gas entering the spray treatment chamber 4, the position of the drainage cylinder 20 in the connecting pipe 7 is adjusted so that the spray agent discharged from the drainage cylinder 20 can enter the plurality of installed water pipes 31, and then be discharged through the spray head 32 to spray the waste gas.

[0027] The working principle of the printing press exhaust gas treatment device: First, according to the type of waste gas to be treated, the waste gas discharge area is selected, and the negative pressure fan 10 is started. The waste gas with high dust content can be transported to the drying and cooling chamber 3 through the transfer pipe 9. At this time, the position of the drainage cylinder 20 in the connecting pipe 7 is adjusted so that when the spray agent is discharged from the drainage cylinder 20, it will only enter the multiple water injection pipes 12. The water injection pipe 12 transports the spray agent to the water injection cylinder 11. After the waste gas enters the drying and cooling chamber 3, the waste gas contacts the multiple heat dissipation fins 13 on the water injection pipe 12. The waste gas is effectively cooled by the low temperature of the spray agent itself. The waste gas will then enter the electrostatic dust removal device 5, and after the dust removal operation of the electrostatic dust removal device 5, it will enter the spray treatment chamber 4 for treatment; The waste gas with low dust content directly enters the spray treatment chamber 4. As the water injection pipe 12 gradually injects the spray agent into the water injection cylinder 11, the water level of the spray agent in the water injection cylinder 11 rises, and then the spray agent gradually enters the seepage pipe 15, and is discharged from the seepage pipe 15 through the water supply filter element 16 and begins to drip. Then, after the waste gas contacts the spray agent dripping from the seepage pipe 15, on the one hand, the temperature of the waste gas can be reduced to avoid the temperature of the waste gas being close to the temperature of the spray agent when the waste gas is subsequently sprayed. On the other hand, the large particles of dust in the waste gas can also be processed, so that the dust in the waste gas can be separated from the waste gas by the spray agent. After the spray agent discharged from the seepage pipe 15 contacts, it directly falls on the surface of the sloped partition frame 2, and then the spray agent mixes with the dust and also enters the water receiving bucket 36, and then the mobile device 23 is started to adjust the position of the drainage cylinder 20, so that the spray agent discharged from the drainage cylinder 20 can enter the installation water pipe 31, and the position of the drainage cylinder 20 is determined according to the amount of waste gas to be treated, so that the spray agent can enter the corresponding number of installation water pipes 31, and then after being discharged through multiple spray heads 32, the waste gas is sprayed. After the waste gas is treated, the exhaust fan 6 is started to move the treated waste gas out of the spray treatment chamber 4.

[0028] Embodiment 2: Based on a printing machine waste gas treatment device, this embodiment 2 also proposes a printing machine waste gas treatment method, including the following steps: Step 1: Transporting waste gas: When transporting waste gas with high dust content, start the negative pressure fan 10 to pump the waste gas in the waste gas channel 8 into the transfer pipe 9, and then let the waste gas directly enter the drying and cooling chamber 3; Step 2: Adjust the position of the drainage cylinder 20: Start the mobile device 23 to move between the two movable slide rails 22. During the movement of the mobile device 23, the water delivery pipe 27 and the connecting rope 28 are driven to move, and then the positions of the drainage cylinder 20 and the sliding cylinder in the connecting pipe 7 are adjusted; Step 3: water injection: start the water delivery pump 25 to deliver the spray agent to the water supply cylinder 26, so that the spray agent enters into the multiple water delivery pipes 27 through the water supply cylinder 26, and finally delivers the spray agent to the drainage cylinder 20 through the water delivery pipes 27, and the spray agent is discharged through the discharge port of the drainage cylinder 20, so that the spray agent only enters into the multiple water injection pipes 12 after being discharged from the drainage cylinder 20; Step 4: Cooling and dust removal: The water injection pipe 12 transports the spray agent into the water injection cylinder 11, so that the exhaust gas enters the drying and cooling chamber 3, and then contacts the multiple heat dissipation fins 13 on the water injection pipe 12 to cool the exhaust gas. The exhaust gas will then enter the electrostatic dust removal device 5, and after the dust removal operation of the electrostatic dust removal device 5, it will enter the spray treatment chamber 4 for treatment; Step 5, waste gas pretreatment: The waste gas with low dust content directly enters the spray treatment chamber 4. As the water injection pipe 12 gradually injects the spray agent into the water injection cylinder 11, the water level of the spray agent in the water injection cylinder 11 rises, and then the spray agent gradually enters the seepage pipe 15, and is discharged from the seepage pipe 15 through the water supply filter 16 and begins to drip. Then, after the waste gas contacts the spray agent dripping from the seepage pipe 15, on the one hand, the temperature of the waste gas can be reduced to avoid the temperature of the waste gas being close to the temperature of the spray agent when the waste gas is sprayed in the subsequent process. On the other hand, the large particles of dust in the waste gas can also be processed; Step six, waste gas treatment: start the mobile device 23 to adjust the position of the drain cylinder 20 so that the spray agent discharged from the drain cylinder 20 can enter the installation water pipe 31, and determine the position of the drain cylinder 20 according to the amount of waste gas to be treated, so that the spray agent can enter the corresponding number of installation water pipes 31, and then after being discharged through multiple spray heads 32, the waste gas is sprayed. After the waste gas is treated, start the exhaust fan 6 to move the treated waste gas out of the spray treatment chamber 4.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing press waste gas treatment device, comprising a waste gas treatment box (1), one side of the waste gas treatment box (1) being connected to a waste gas inlet assembly (100), characterized in that: Also includes: A sloped partition frame (2), the sloped partition frame (2) being fixedly connected to the exhaust gas treatment box (1), the sloped partition frame (2) dividing the interior of the exhaust gas treatment box (1) into a drying and cooling chamber (3) and a spray treatment chamber (4), an electrostatic dust removal device (5) being arranged between the drying and cooling chamber (3) and the spray treatment chamber (4), and an exhaust fan (6) being arranged on one side of the spray treatment chamber (4); A communicating pipe (7), wherein the number of the communicating pipes (7) is set to be multiple, a side of the communicating pipe (7) close to the sloped partition frame (2) is connected to multiple exhaust gas cooling mechanisms (200), the exhaust gas cooling mechanisms (200) are arranged through the sloped partition frame (2), a movable drainage component (300) is slidably arranged in each of the multiple communicating pipes (7), and a driving drainage component (400) is arranged between the exhaust gas treatment box (1) and the multiple movable drainage components (300); A spray processing assembly (500), wherein a plurality of the spray processing assemblies (500) are arranged in communication on the area of ​​the communication pipe (7) located within the spray processing chamber (4).

2. A printing press waste gas treatment device according to claim 1, characterized in that: The exhaust gas inlet assembly (100) comprises: An exhaust gas channel (8), the exhaust gas channel (8) being in communication with the spray treatment chamber (4); A transfer pipe (9), wherein the waste gas channel (8) and the drying and cooling chamber (3) are connected by the transfer pipe (9), a valve is provided on the transfer pipe (9), and a negative pressure fan (10) is provided at the top of the transfer pipe (9).

3. A printing machine waste gas treatment device according to claim 2, characterized in that: The exhaust gas cooling mechanism (200) comprises: A water injection cylinder (11), the water injection cylinder (11) passing through and fixedly connected to the sloped partition frame (2); Water injection pipes (12), a plurality of water injection pipes (12) are arranged inside the water injection cylinder (11), the water injection pipes (12) are connected to the connecting pipe (7), and the bottoms of the water injection pipes (12) extend into the inner bottom of the water injection cylinder (11); Heat dissipation fins (13), a plurality of the heat dissipation fins (13) being fixedly connected to an area of ​​the water injection cylinder (11) located in the drying and cooling chamber (3); A water seepage cooling component, wherein a plurality of the water seepage cooling components are connected to the area of ​​the water injection cylinder (11) located in the spray treatment chamber (4).

4. A printing press waste gas treatment device according to claim 3, characterized in that: Also includes: A drain valve (14), the bottom of the water injection cylinder (11) being connected and provided with the drain valve (14); The inner bottom wall of the drying and cooling chamber (3) is designed to be sloped, and the inner bottom wall of the drying and cooling chamber (3) is connected to a discharge trough.

5. A printing press waste gas treatment device according to claim 4, characterized in that: The water seepage cooling component comprises: A water seepage pipe (15), wherein a plurality of the water seepage pipes (15) are passed through and fixedly connected to the water injection cylinder (11), and a plurality of installation openings are provided on the water seepage pipe (15), and a water supply filter element (16) is arranged in each of the installation openings.

6. A printing press waste gas treatment device according to claim 5, characterized in that: The mobile drainage assembly (300) comprises: A sliding sleeve (17), wherein a sliding groove (18) is provided on the inner wall of the connecting pipe (7), the sliding sleeve (17) is slidably connected to the sliding groove (18), an elastic sealing sleeve (19) is provided on the sliding sleeve (17), and a side wall of the elastic sealing sleeve (19) is fitted between the connecting pipe (7) and the sliding groove (18); A drainage cylinder (20), wherein the drainage cylinder (20) is fixedly connected inside the sliding sleeve (17), and a drainage port (21) is connected to a side of the drainage cylinder (20) close to the exhaust gas passage (8).

7. A printing press waste gas treatment device according to claim 6, characterized in that: The driving drainage assembly (400) comprises: Movable slide rails (22), both sides of the top of the exhaust gas treatment box (1) are fixedly connected to the movable slide rails (22), and a moving device (23) is arranged between the two movable slide rails (22); A mounting water tank (24), the mounting water tank (24) being fixedly connected to the mobile device (23), a water delivery pump (25) being arranged in the mounting water tank (24), a water supply cylinder (26) being fixedly connected in the mounting water tank (24), and an output end of the water delivery pump (25) being in communication with the water supply cylinder (26); a water delivery pipe (27), wherein the water supply cylinder (26) is connected to one side of each of the plurality of drainage cylinders (20); A connecting rope (28) is fixedly connected between the mobile device (23) and the other side of the plurality of drainage cylinders (20).

8. A printing press waste gas treatment device according to claim 7, characterized in that: Also includes: a guide cylinder (29) having a bending function, wherein the installation water tank (24) and the mobile device (23) are fixedly connected to the guide cylinder (29) corresponding to the water delivery pipe (27) and the connecting rope (28); the water delivery pipe (27) and the connecting rope (28) are in one-to-one correspondence with the guide cylinder (29); and the water delivery pipe (27) and the connecting rope (28) are located in the corresponding guide cylinder (29); A bending conveying frame (30), wherein both sides of the top of the exhaust gas treatment box (1) are fixedly connected to the bending conveying frame (30), and the conveying water pipe (27) or the connecting rope (28) is slidably arranged in the corresponding bending conveying frame (30).

9. A printing press waste gas treatment device according to claim 8, characterized in that: The spray treatment assembly (500) comprises: A water pipe (31) is installed, the water pipe (31) being connected to the connecting pipe (7), and the bottom of the water pipe (31) being connected to a plurality of spray heads (32).

10. A method for treating waste gas from a printing press, using the waste gas treatment device of a printing press according to claim 9, characterized in that: The following steps are involved: Step 1: conveying waste gas: when conveying waste gas with a high dust content, start the negative pressure fan (10) to pump the waste gas in the waste gas channel (8) into the transfer pipe (9), and then allow the waste gas to directly enter the drying and cooling chamber (3); Step 2: Adjust the position of the drainage cylinder (20): start the mobile device (23) to move between the two movable slide rails (22). During the movement of the mobile device (23), the water delivery pipe (27) and the connecting rope (28) are driven to move, and then the positions of the drainage cylinder (20) and the sliding cylinder in the connecting pipe (7) are adjusted; Step 3, water injection: start the water delivery pump (25) to deliver the spray agent into the water supply cylinder (26), so that the spray agent enters into the plurality of water delivery pipes (27) through the water supply cylinder (26), and finally delivers the spray agent into the drainage cylinder (20) through the water delivery pipes (27), and the spray agent is discharged through the discharge port of the drainage cylinder (20), so that the spray agent only enters into the plurality of water injection pipes (12) after being discharged from the drainage cylinder (20); Step 4: Cooling and dust removal: The water injection pipe (12) transports the spray agent into the water injection cylinder (11), so that the exhaust gas enters the drying and cooling chamber (3), and then contacts the plurality of heat dissipation fins (13) on the water injection pipe (12) to cool the exhaust gas. The exhaust gas then enters the electrostatic dust removal device (5), and after the dust removal operation of the electrostatic dust removal device (5), enters the spray treatment chamber (4) for treatment. Step 5, waste gas pretreatment: the waste gas with low dust content directly enters the spray treatment chamber (4), and as the water injection pipe (12) gradually injects the spray agent into the water injection cylinder (11), the water level of the spray agent in the water injection cylinder (11) rises, and then the spray agent gradually enters the seepage pipe (15), and is discharged from the seepage pipe (15) through the water supply filter (16) and begins to drip. Then, after the waste gas contacts the spray agent dripping from the seepage pipe (15), on the one hand, the temperature of the waste gas can be reduced to avoid the temperature of the waste gas being close to the temperature of the spray agent when the waste gas is subsequently sprayed. On the other hand, large particles of dust in the waste gas can also be treated; Step 6, waste gas treatment: start the mobile device (23) to adjust the position of the drainage cylinder (20) so that the spray agent discharged from the drainage cylinder (20) can enter the installation water pipe (31), and determine the position of the drainage cylinder (20) according to the amount of waste gas to be treated, so that the spray agent can enter a corresponding number of installation water pipes (31), and then after being discharged through multiple spray heads (32), the waste gas is sprayed. After the waste gas is treated, start the exhaust fan (6) to remove the treated waste gas from the spray treatment chamber (4).

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