A centralized collection tank for printing and dyeing waste gas

Abstract

The application discloses a centralized collection tank for printing and dyeing waste gas, which comprises a tank body and a pressure-sensitive control box, an air inlet pipeline and an air outlet pipeline are connected to the side wall of the tank body, an air outlet control valve is installed on the air outlet pipeline, the pressure-sensitive control box is vertically installed on the top of the tank body, a pressure reactor is further installed on the top of the tank body, the pressure reactor can be linked with the pressure-sensitive control box, a switch frame is installed on the side of the pressure-sensitive control box, the pressure-sensitive control box can be correspondingly linked with the switches on the switch frame, and the switches are all connected to the air outlet control valve. The application is installed before a waste gas treatment system and is used for collecting printing and dyeing waste gas in advance. The application realizes sufficient supply of printing and dyeing waste gas to the waste gas treatment system, the application of the application can greatly improve the system utilization rate of the subsequent waste gas treatment system, the production energy consumption can be greatly reduced, and the production demand of energy saving and efficiency increasing is met.

Description

Technical Field

[0001] This invention relates to the field of dyeing and printing waste gas treatment equipment, and in particular to a centralized collection tank for dyeing and printing waste gas. Background Technology

[0002] Textile printing and dyeing is a key industry closely related to people's lives. The production process generates a large amount of waste gas, which is often toxic and harmful. Direct emission into the atmosphere would severely pollute the environment. Therefore, printing and dyeing waste gas requires a series of strict harmless treatment processes. Currently, the waste gas generated during printing and dyeing production is directly introduced into the waste gas treatment system for treatment. Therefore, when printing and dyeing enterprises are operating, their waste gas treatment systems need to be continuously running. However, during the printing and dyeing production process, the amount of waste gas generated fluctuates significantly at different times. This change in waste gas volume affects the system's utilization rate. When the waste gas volume is low, the system utilization rate is low, which is counterproductive. Therefore, how to improve this situation and increase the utilization rate of the waste gas treatment system has become a key focus of technological transformation research for enterprises. Summary of the Invention

[0003] The purpose of this invention is to address the needs of the prior art by providing a centralized collection tank for dyeing and printing waste gas.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A centralized collection tank for dyeing and printing waste gas includes a tank body and a pressure sensing control box. An inlet pipe and an outlet pipe are connected to the side wall of the tank body. An outlet control valve is installed on the outlet pipe. The pressure sensing control box is vertically installed on the top of the tank body. The pressure sensing control box includes a box body, within which a pressure reaction slider and an outlet trigger slider are movably installed. A pressure reactor is also installed on the top of the tank body. A pressure rod is movably installed within the pressure reactor. The top of the pressure rod abuts against the pressure reaction slider. A slider linkage mechanism is installed on the outlet trigger slider, enabling the pressure reaction slider and the outlet trigger slider to move in tandem. A switch frame is installed on the side of the pressure sensing control box, housing an outlet open switch and an outlet close switch. A switch rod is connected to the top of the outlet trigger slider, and a switch pressure rod is connected to the side of the pressure reaction slider. The outlet open switch and the outlet close switch are both electrically connected to the outlet control valve.

[0006] The box body has two vertically arranged I-shaped slides. The air pressure reaction slider and the exhaust trigger slider are respectively slidably mounted in the two I-shaped slides. A connecting space is provided between the two I-shaped slides, and the slider linkage mechanism can move in the connecting space.

[0007] The pressure reactor is installed vertically and includes a pressure pipe that extends into the tank. A piston is movably installed inside the pressure pipe, and the bottom end of the pressure rod is fixedly connected to the piston. A vent hole is provided at the bottom of the pressure pipe.

[0008] The exhaust trigger slider has a horizontal telescopic hole that opens towards the pressure reaction slider. The slider linkage mechanism includes a telescopic block and a second spring. The telescopic block is movably installed in the telescopic hole and protrudes towards the pressure reaction slider. A passive impact head is fixedly connected to the protruding end of the telescopic block. An active impact head is fixedly connected to the side wall of the pressure reaction slider and is correspondingly connected to the side facing the exhaust trigger slider. The passive impact head blocks the movement trajectory of the active impact head. The passive impact head has a flat section facing the upward movement direction of the active impact head. A limit link is connected to the end of the telescopic block facing the depth of the telescopic hole. The limit link extends through the exhaust trigger slider and to the outside of the housing. A limit plate is fixedly connected to the limit link and is located on the outside of the housing. The second spring is installed in the telescopic hole and is fitted on the outside of the limit link. When the flat section of the passive impact head abuts against the active impact head, the pressure reaction slider can drive the exhaust trigger slider to move upward together through the slider linkage mechanism.

[0009] A fixed strip is fixedly installed in the connected space. A retractable impact plate is mounted on the fixed strip. A vertical rod impact head is erected on the passive impact head. The retractable impact plate is set to correspond to the movement trajectory line of the vertical rod impact head. The retractable impact plate is provided with a first inclined surface, which faces the upward movement direction of the vertical rod impact head. The vertical rod impact head is a cylindrical rod.

[0010] The retractable impact plate is installed at a height corresponding only to the vertical impact head. Below the retractable impact plate, there is space for the movement of the active impact head, telescopic block, and passive impact head.

[0011] A first spring is installed inside the I-shaped slide rail where the exhaust trigger slider is installed. The exhaust trigger slider is pressed onto the first spring. A downward limit stop is also installed inside the I-shaped slide rail where the exhaust trigger slider is installed. The downward limit stop blocks the downward movement trajectory line of the exhaust trigger slider. The lower limit position of the protruding end of the telescopic block is higher than the lower limit position of the active impact head.

[0012] The passive impact head is also provided with a second inclined surface, which faces the downward movement direction of the active impact head. The active impact head is a cylindrical rod.

[0013] An air inlet cylinder is rotatably installed inside the tank. The air inlet cylinder is connected to an air inlet pipe. A motor is installed at the bottom of the tank. The output end of the motor is connected to the air inlet cylinder. A filter screen is installed on the side peripheral wall of the air inlet cylinder.

[0014] The beneficial effects of this invention are as follows: This invention is installed upstream of the waste gas treatment system for the initial collection of dyeing and printing waste gas. It is equipped with a pressure-sensing control box, ensuring that the waste gas is only discharged after the collected waste gas reaches a preset amount, thus providing sufficient quantity and pressure of waste gas to the subsequent waste gas treatment system. After applying this invention, the waste gas treatment system does not need to be continuously turned on; it only needs to be turned on in conjunction with the exhaust action of this invention. The application of this invention can greatly improve the system utilization rate of the subsequent waste gas treatment system. Since the waste gas treatment system does not need to be continuously turned on, production energy consumption can also be greatly reduced, meeting the production requirements for energy conservation and efficiency improvement. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the installation structure of the pressure reactor of the present invention;

[0017] Figure 3 This is a cross-sectional structural diagram of the pressure sensing control box of the present invention;

[0018] Figure 4 A schematic diagram of the internal structure of the pressure-sensing control box when the exhaust shut-off switch is triggered;

[0019] Figure 5 A schematic diagram of the internal structure of the pressure-sensing control box when the exhaust opening switch is triggered;

[0020] Figure 6 This is a schematic diagram of the internal structure of the pressure sensing control box when the air pressure reaction slider falls back;

[0021] Figure 7 This is a schematic diagram of the installation structure of the slider linkage mechanism of the present invention.

[0022] In the diagram: Tank 1, Inlet pipe 11, Exhaust pipe 12, Exhaust control valve 13, Pressure sensing control box 2, Box 21, I-shaped slide 211, Connecting space 212, Fixing strip 2121, Retractable impact plate 2122, First inclined surface 2123, Pressure reaction slider 22, Switch lever 221, Active impact head 222, Exhaust trigger slider 23, Switch top rod 231, Telescopic hole 232, First spring 233, Downward limit 234, Slider linkage mechanism 24, Telescopic block 241, Passive impact head 242, Planar section 2421, Second inclined surface 2422, Vertical rod impact head 243, Limiting link 244, Limiting plate 245, Second spring 246, Pressure reactor 3, Pressure top rod 31, Pressure pipe 32, Vent hole 321, Piston 33, Switch frame 4, Exhaust opening switch 41, Exhaust closing switch 42, Inlet cylinder 5, Filter screen 51, Motor 6. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. In this invention, terms such as "left" and "right" refer to... Figure 1 For reference direction:

[0024] like Figures 1 to 7As shown, a centralized collection tank for dyeing and printing waste gas includes a tank body 1 and a pressure sensing control box 2. An inlet pipe 11 and an outlet pipe 12 are connected to the side wall of the tank body 1. The inlet pipe 11 is used to input the collected dyeing and printing waste gas. The waste gas is collected centrally within the tank body 1. When the gas volume is large and the pressure exceeds a preset value, it is discharged to the waste gas treatment system through the outlet pipe 12. An outlet control valve 13 is installed on the outlet pipe 12 to control the opening and closing of the outlet pipe 12. The outlet control valve 13 is normally closed. When the gas pressure inside the tank exceeds the standard, the outlet control valve 13 will be opened to achieve the exhaust effect. The pressure sensing control box 2 is vertically installed on the top of the tank body 1. The pressure sensing control box 2 includes a box body 21, and movable parts are installed inside the box body 21. The tank 1 is equipped with a pressure reaction slider 22 and an exhaust trigger slider 23. A pressure reactor 3 is also installed on the top of the tank 1. A pressure rod 31 is movably installed inside the pressure reactor 3, with its top end contacting the pressure reaction slider 22. A slider linkage mechanism 24 is installed on the exhaust trigger slider 23, allowing the pressure reaction slider 22 and the exhaust trigger slider 23 to move in tandem. A switch frame 4 is installed on the side of the pressure sensing control box 2, with an exhaust on switch 41 and an exhaust off switch 42 installed on it. A switch rod 231 is connected to the top of the exhaust trigger slider 23, and a switch rod 221 is connected to the side of the pressure reaction slider 22. The exhaust on switch 41 is set to correspond to the movement trajectory of the switch rod 231, and the exhaust off switch... 42 is set according to the movement trajectory line of the corresponding switch lever 221. The exhaust opening switch 41 and exhaust closing switch 42 are both connected to the exhaust control valve 13. The pressure reactor 3 can reflect the gas volume in the tank 1. When the amount of waste gas entering the tank 1 increases, the gas pressure in the tank 1 increases. This is reflected in the pressure reactor 3 by the rise of the pressure rod 31. The pressure sensing control box 2 is used to reflect the pressure change and can control the opening and closing of the exhaust control valve 13. When the gas pressure in the tank rises, the pressure rod 31 will also rise, which will be reflected by the linkage rise of the gas pressure reaction slider 22 and the exhaust trigger slider 23. The switch lever 231 will push up to trigger the exhaust opening switch 41 to control the opening of the exhaust control valve 13, forming an exhaust effect. As exhaust continues, the pressure in the tank 1 increases. As the pressure decreases, the pressure-reacting slider 22 will also decrease until it triggers the exhaust shut-off switch 42, closing the exhaust control valve 13 and achieving an exhaust shut-off effect. At this time, the amount of waste gas remaining in the tank 1 will be relatively small. This invention is suitable for installation upstream of the waste gas treatment system. This invention can collect waste gas generated in the dyeing and printing production process in advance. The application of this invention changes the original working mode of directly supplying waste gas to the waste gas treatment system. Through this invention, sufficient quantity and pressure of dyeing and printing waste gas can be provided to the subsequent waste gas treatment system. After applying this invention, the waste gas treatment system does not need to be continuously turned on; it only needs to be turned on in conjunction with the exhaust action of this invention. Since the amount of waste gas supplied at one time is relatively sufficient and the gas volume fluctuation is relatively stable, the system utilization rate of the waste gas treatment system during the treatment operation will be greatly improved.Since the waste gas treatment system does not need to be continuously operated, production energy consumption can be greatly reduced, meeting the production requirements for energy conservation and efficiency improvement.

[0025] like Figure 3 and Figure 4 As shown, the box 21 has two vertically arranged I-shaped slides 211. The air pressure response slider 22 and the exhaust trigger slider 23 are respectively slidably mounted in the two I-shaped slides 211. Under the guidance of the movement of the I-shaped slides 211, the air pressure response slider 22 and the exhaust trigger slider 23 have the function of vertical lifting and lowering. A connecting space 212 is provided between the two I-shaped slides 211. The connecting space 212 connects the two slides. The slider linkage mechanism 24 can move in the connecting space 212. The opening of the connecting space 212 is mainly to prevent the linkage structure between the sliders from being interfered with by movement.

[0026] like Figure 2 As shown, the pressure reactor 3 is installed vertically. The pressure reactor 3 includes a pressure pipe 32, which extends into the tank body 1. A piston 33 is movably installed inside the pressure pipe 32. The bottom end of the pressure rod 31 is fixedly connected to the piston 33. A vent hole 321 is opened at the bottom of the pressure pipe 32. Through the vent hole 321, the waste gas in the tank can enter the pressure pipe 32, and the pressure in the tank can be reflected on the pressure reactor 3. When the gas volume in the tank increases and the gas pressure increases, the piston 33 can be pushed upward to form the upward effect of the pressure rod 31. When the gas volume in the tank decreases and the gas pressure decreases, the piston 33 can be pushed downward to form the downward effect of the pressure rod 31.

[0027] like Figure 7As shown, the exhaust trigger slider 23 has a transverse telescopic hole 232, which opens towards the air pressure reaction slider 22. The slider linkage mechanism 24 includes a telescopic block 241 and a second spring 246. The telescopic block 241 is movably installed in the telescopic hole 232. Since the telescopic hole 232 is open towards the air pressure reaction slider 22, the telescopic block 241 can protrude towards the air pressure reaction slider 22. A passive impact head 242 is fixedly connected to the protruding end of the telescopic block 241. An active impact head 222 is fixedly connected to the side wall of the air pressure reaction slider 22. The active impact head 222 is correspondingly connected to the side facing the exhaust trigger slider 23. The passive impact head 242 blocks the movement trajectory line of the active impact head 222. The active impact head 222 can move up and down with the exhaust trigger slider 23. The passive impact head 242 can interact with the moving active impact head 222. The head 222 creates a collision effect. The passive impact head 242 has a flat section 2421, which faces the upward movement direction of the active impact head 222. The end of the telescopic block 241 facing the depth of the telescopic hole 232 is connected to a limiting link 244. The limiting link 244 passes through the exhaust trigger slider 23 and extends to the outside of the box 21. A limiting plate 245 is fixedly connected to the limiting link 244. The limiting plate 245 is located on the outside of the box 21. The second spring 246 is installed in the telescopic hole 232 and is fitted on the outside of the limiting link 244. Under the spring force of the second spring 246, the telescopic block 241 can protrude outward, and the passive impact head 242 can be blocked on the movement trajectory line of the active impact head 222. The limiting plate 245 limits the protrusion length, controlling the degree of protrusion of the passive impact head 242. Figure 4 As shown, when the pressure reaction slider 22 moves upward, the active impact head 222 moves upward until it touches the passive impact head 242. When the planar section 2421 of the passive impact head 242 touches the active impact head 222, the active impact head 222 will not cause the telescopic block 241 to retract (because it is a planar contact). The pressure reaction slider 22 can drive the exhaust trigger slider 23 to move upward together through the slider linkage mechanism 24. The upward movement of the pressure reaction slider 22 is due to being pushed upward by the pressure rod 31. The upward movement of the pressure rod 31 requires an increase in the amount of gas in the tank and an increase in the gas pressure. Therefore, it can be seen that when the amount of gas in the tank increases and the gas pressure increases, both the pressure reaction slider 22 and the exhaust trigger slider 23 will move upward. The upward movement of the exhaust trigger slider 23 will create the effect of the upward movement of the switch rod 231. The exhaust opening switch 41 is set directly above the switch rod 231. As the switch rod 231 moves upward, the exhaust opening switch 41 will be triggered by impact.

[0028] like Figure 4As shown, a fixing strip 2121 is fixedly installed in the connecting space 212. A retractable impact plate 2122 is mounted on the fixing strip 2121. A vertical rod impact head 243 is vertically installed on the passive impact head 242. The retractable impact plate 2122 is set to correspond to the movement trajectory line of the vertical rod impact head 243. The vertical rod impact head 243 can move upward with the passive impact head 242 and can touch the retractable impact plate 2122. The retractable impact plate 2122 is provided with a first inclined surface 2123, which faces the upward movement direction of the vertical rod impact head 243. The vertical rod impact head 243 is a cylindrical rod. The first inclined surface 2123 is inclined towards the exhaust trigger slider 23. As the air pressure reaction slider 22 and the exhaust trigger slider 23 move upward in linkage, the active impact head 222 will push the passive impact head 242 upward. Figure 5 As shown, when the cylindrical vertical rod impact head 243 contacts the first inclined surface 2123 on the retractable impact plate 2122, the vertical rod impact head 243 will move along the slope of the first inclined surface 2123 (mainly because the left side of the telescopic block 241 is elastically connected, with room for retraction). At this time, the telescopic block 241 and the passive impact head 242 can form a retraction effect. As the active impact head 222 continues to move upward, the retraction effect becomes more obvious until the active impact head 222 separates from the passive impact head 242. After separation, the passive impact head 242 loses its upward force, and the exhaust trigger slider 23 will naturally fall back downward. When the exhaust trigger slider 23 moves to the highest point, the exhaust opening switch 41 will be triggered. Since the exhaust trigger slider 23 will naturally fall back as soon as it reaches the highest point, the exhaust opening switch 41 forms a momentary trigger effect (the advantage of momentary triggering is that it reduces the impact on the switch). The impact force is relatively small, and the impact amplitude can be controlled (by controlling the installation height of the retractable impact plate 2122, the separation position of the active impact head 222 and the passive impact head 242 can be controlled, thereby controlling the upward height of the switch rod 231). The inching trigger will not form a continuous impact, which can effectively reduce the probability of switch damage. After the exhaust opening switch 41 is inching triggered, the exhaust control valve 13 opens, and the exhaust pipe 12 delivers sufficient exhaust gas to the downstream exhaust gas treatment system. In the short time after the exhaust control valve 13 is opened, the gas pressure in the tank still has an upward trend. At this time, the gas pressure reaction slider 22 will continue to rise. Since the active impact head 222 and the passive impact head 242 have separated, the upward movement of the gas pressure reaction slider 22 does not affect the fall of the exhaust trigger slider 23. It will only cause the active impact head 222 to be above the passive impact head 242.

[0029] like Figure 5As shown, the retractable impact plate 2122 is installed at a height corresponding only to the vertical impact head 243. Below the retractable impact plate 2122, there is space for the movement of the active impact head 222, the telescopic block 241, and the passive impact head 242. Since there is a need for the telescopic block 241 and the passive impact head 242 to retract at the position of the retractable impact plate 2122, and there is a need for the active impact head 222 to continue to move upward, the retractable impact plate 2122 must be installed at a height. The retractable impact plate 2122 only serves to guide the movement of the vertical impact head 243 and does not interfere with the movement of the components below.

[0030] like Figure 6 As shown, a first spring 233 is installed inside the I-shaped slide 211 where the exhaust trigger slider 23 is installed. The exhaust trigger slider 23 is pressed onto the first spring 233. The first spring 233 can pull the exhaust trigger slider 23 downward to return to its original position. When the exhaust trigger slider 23 moves upward, the first spring 233 is stretched. After the active impact head 222 and the passive impact head 242 separate, the first spring 233 pulls the exhaust trigger slider 23 downward to reset. The switch rod 231 moves downward accordingly, forming only a momentary trigger for the exhaust opening switch 4. A downward limit 234 is also installed inside the I-shaped slide 211 where the exhaust trigger slider 23 is installed. The downward limit 234 blocks the downward movement trajectory line of the exhaust trigger slider 23. The downward limit 234 determines the lower limit height of the exhaust trigger slider 23. When the exhaust trigger slider 23 returns to the downward limit 234, the exposed end of the telescopic block 241 also moves down to the lowest point, as shown. Figure 4 As shown, the lower limit position of the protruding end of the telescopic block 241 is higher than the lower limit position of the active impact head 222. This means that the descent of the pneumatic reaction slider 22 is greater, ensuring that the active impact head 222 can return to the position below the protruding end of the telescopic block 241. This allows for a second lifting effect when the pressure inside the tank rises again. When the pneumatic reaction slider 22 descends, the switch rod 221 descends accordingly. The pneumatic reaction slider 22 is used as a counterweight. When the pressure inside the tank decreases, it will naturally fall back down due to the gravity of the pneumatic reaction slider 22 until the switch rod 221 presses against the exhaust shut-off switch 42. At this moment, it means that the pressure inside the tank has returned to a low level and the amount of waste gas inside the tank is small, so the exhaust needs to be shut off. After the exhaust shut-off switch 42 is triggered, it can close the exhaust control valve 13. Two motion grooves are provided on the side wall of the box body 21. The motion grooves correspond to the motion trajectory lines of the switch rod 221 and the limit linkage 244, respectively.

[0031] like Figure 6As shown, the passive impact head 242 is also provided with a second inclined surface 2422, which faces the downward movement direction of the active impact head 222. The active impact head 222 is a cylindrical rod. As mentioned above, the active impact head 222 may be positioned above the passive impact head 242. However, only after the active impact head 222 returns to its original position below the passive impact head 242 can the exhaust trigger slider 23 be raised again. To ensure that the active impact head 222 can return smoothly, the present invention provides a second inclined surface 2422 on the passive impact head 242. Figure 6 As shown, the active impact head 222 is positioned above the passive impact head 242. When the active impact head 222 descends, it will hit the second inclined surface 2422. Due to the tilt angle, the telescopic block 241 and the passive impact head 242 will retract again to make way for the downward path of the active impact head 222. After the active impact head 222 passes, the telescopic block 241 will re-expose itself due to the spring force of the second spring 246. The passive impact head 242 can once again block the active impact head 222. In summary, the passive impact head 242 can only block the upward movement of the active impact head 222, but cannot block the downward movement of the active impact head 222.

[0032] like Figure 1 As shown, an air inlet cylinder 5 is rotatably installed inside the tank 1. The air inlet cylinder 5 is connected to the air inlet pipe 11. A motor 6 is installed at the bottom of the tank 1, and the output end of the motor 6 is connected to the air inlet cylinder 5. A filter screen 51 is installed on the side peripheral wall of the air inlet cylinder 5. The incoming waste gas first enters the air inlet cylinder 5 and then escapes into the tank 1. The motor 6 can drive the air inlet cylinder 5 to rotate. Since the side peripheral wall of the air inlet cylinder 5 is the filter screen 51, the continuously rotating filter screen 51 will form an airflow impact filtration effect on the waste gas. Oil droplets, large particles, floating lint, etc. in the waste gas can be filtered into the air inlet cylinder 5. After applying the above design, the present invention can form a primary treatment effect of waste gas. This structure can reduce the burden of subsequent waste gas treatment.

[0033] The above description is only a preferred embodiment of the present invention and is 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 within the protection scope of the present invention.

Claims

1. A centralized collection tank for dyeing and printing waste gas, comprising a tank body and a pressure sensing control box, characterized in that: An air inlet pipe and an exhaust pipe are connected to the side wall of the tank. An exhaust control valve is installed on the exhaust pipe. A pressure sensing control box is vertically installed on the top of the tank. The pressure sensing control box includes a box body, in which a pressure reaction slider and an exhaust trigger slider are movably installed. A pressure reactor is also installed on the top of the tank. A pressure rod is movably installed inside the pressure reactor. The top of the pressure rod abuts against the pressure reaction slider. A slider linkage mechanism is installed on the exhaust trigger slider. Through the slider linkage mechanism, the pressure reaction slider and the exhaust trigger slider can move in tandem. A switch frame is mounted on the side of the force-sensing control box. An exhaust start switch and an exhaust stop switch are mounted on the switch frame. A switch rod is connected to the top of the exhaust trigger slider, and a switch lever is connected to the side of the pressure-response slider. The exhaust start switch and the exhaust stop switch are set according to the movement trajectory of the switch rod and the switch lever, respectively. Both the exhaust start and exhaust stop switches are wired to the exhaust control valve. Two vertically arranged I-shaped slides are provided inside the box, and the pressure-response slider and the exhaust trigger slider are respectively slidably mounted on the two I-shaped slides. Inside the slide, a connecting space is provided between the two I-shaped slides. The slider linkage mechanism can move within the connecting space. The exhaust trigger slider has a transverse telescopic hole, which opens towards the air pressure reaction slider. The slider linkage mechanism includes a telescopic block and a second spring. The telescopic block is movably installed in the telescopic hole and protrudes towards the air pressure reaction slider. A passive impact head is fixedly connected to the protruding end of the telescopic block. An active impact head is fixedly connected to the side wall of the air pressure reaction slider, and the active impact head is correspondingly connected to the side facing the exhaust trigger slider. The passive impact head blocks... On the trajectory of the active impact head, the passive impact head has a planar segment facing the upward movement direction of the active impact head. The telescopic block is connected to a limit link at the end facing the depth of the telescopic hole. The limit link passes through the exhaust trigger slider and extends to the outside of the box. A limit plate is fixedly connected to the limit link and is located on the outside of the box. The second spring is installed in the telescopic hole and is fitted on the outside of the limit link. When the planar segment of the passive impact head abuts against the active impact head, the air pressure reaction slider can drive the exhaust trigger slider to move upward together through the slider linkage mechanism.

2. The centralized collection tank for dyeing and printing waste gas as described in claim 1, characterized in that: The pressure reactor is installed vertically and includes a pressure pipe that extends into the tank. A piston is movably installed inside the pressure pipe, and the bottom end of the pressure rod is fixedly connected to the piston. A vent hole is provided at the bottom of the pressure pipe.

3. The centralized collection tank for dyeing and printing waste gas as described in claim 1, characterized in that: A fixed strip is fixedly installed in the connected space. A retractable impact plate is mounted on the fixed strip. A vertical rod impact head is erected on the passive impact head. The retractable impact plate is set to correspond to the movement trajectory line of the vertical rod impact head. The retractable impact plate is provided with a first inclined surface, which faces the upward movement direction of the vertical rod impact head. The vertical rod impact head is a cylindrical rod.

4. The centralized collection tank for dyeing and printing waste gas as described in claim 3, characterized in that: The retractable impact plate is installed at a height corresponding only to the vertical impact head. Below the retractable impact plate, there is space for the movement of the active impact head, the telescopic block, and the passive impact head.

5. The centralized collection tank for dyeing and printing waste gas as described in claim 1, characterized in that: A first spring is installed inside the I-shaped slide rail where the exhaust trigger slider is installed. The exhaust trigger slider is pressed onto the first spring. A downward limit stop is also installed inside the I-shaped slide rail where the exhaust trigger slider is installed. The downward limit stop blocks the downward movement trajectory line of the exhaust trigger slider. The lower limit position of the protruding end of the telescopic block is higher than the lower limit position of the active impact head.

6. The centralized collection tank for dyeing and printing waste gas as described in claim 1, characterized in that: The passive impact head is also provided with a second inclined surface, which faces the downward movement direction of the active impact head. The active impact head is a cylindrical rod.

7. The centralized collection tank for dyeing and printing waste gas as described in claim 1, characterized in that: An air inlet cylinder is rotatably installed inside the tank. The air inlet cylinder is connected to an air inlet pipe. A motor is installed at the bottom of the tank. The output end of the motor is connected to the air inlet cylinder. A filter screen is installed on the side peripheral wall of the air inlet cylinder.

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