Tail gas green treatment device of vacuum sintering furnace

Abstract

The invention relates to the technical field of ecological protection engineering, in particular to a tail gas green treatment device of a vacuum sintering furnace. Comprising a support, the support is fixedly connected with a spraying tank, a plurality of spraying modules are fixedly connected in the spraying tank, filler supporting plates with the same number as the spraying modules are fixedly connected in the spraying tank, and two pushing frames are rotationally connected between the filler supporting plates and the corresponding spraying modules in a sealed mode in the spraying tank. The spraying tank is provided with a driving assembly used for driving all the pushing frames to rotate. The two pushing frames at the filler drive the filler to move, in the tail gas treatment stage, the filler moves to continuously change the distribution condition of the filler, the external area is fully utilized, gas-liquid contact and mass transfer are enhanced, the tail gas purification efficiency is remarkably improved, and in the filler cleaning stage, the two pushing frames reversely rotate to generate a strong scrubbing effect on the filler, so that the tail gas purification effect is improved. And external attached impurities are effectively stripped.

Description

Technical Field

[0001] This invention relates to the field of ecological protection engineering technology, and in particular to a green treatment device for the exhaust gas of a vacuum sintering furnace. Background Technology

[0002] During the sintering process in a vacuum sintering furnace, the forming agents, binders (such as paraffin wax, polyvinyl alcohol, etc.) and impurities contained in the raw materials will pyrolyze or volatilize at high temperatures, generating complex exhaust gases, which contain dust particles, acidic gases, volatile organic compounds and metal oxide vapors. If such exhaust gases are discharged directly into the atmosphere without effective purification, they will cause serious environmental pollution. Given that spray towers have advantages such as simple structure, sufficient gas-liquid contact and low operating costs, they have become the mainstream purification equipment for treating exhaust gases from vacuum sintering furnaces.

[0003] Existing spray towers generally use fixed packing. During the tail gas purification stage, the spray liquid easily forms a fixed liquid film on the surface of the packing and is difficult to uniformly cover all areas. Wetting blind spots are particularly likely to occur in structural dead corners, resulting in insufficient gas-liquid mass transfer and limiting the overall purification efficiency. This problem is particularly prominent when treating combustion tail gas with high dust content or viscous components, making it difficult to consistently achieve the purification effect. During the cleaning and maintenance stage, the stationary packing will cause dust, inorganic salt crystals, or viscous organic matter in the tail gas to firmly adhere to the surface of the packing, gradually forming dense hard scale. Traditional spray washing methods are difficult to effectively remove stubborn deposits at the contact points, back side, and micropores of the packing. Long-term accumulation will significantly reduce the flow and mass transfer performance in the tower, affecting the long-term stable operation of the system. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a green treatment device for the exhaust gas of a vacuum sintering furnace.

[0005] Technical Solution: A green treatment device for exhaust gas from a vacuum sintering furnace includes a support frame, a spray tank fixedly connected to the support frame, a plurality of spray modules fixedly connected inside the spray tank, and a packing support plate of the same number as the spray modules fixedly connected inside the spray tank. The spray modules and the packing support plates are staggered, with each spray module positioned above a corresponding packing support plate. The packing support plate is provided with uniformly distributed through holes for gas-liquid passage. Two pushers are rotatably and sealingly connected between the spray tank and the corresponding spray modules. The pushers are used to push the packing on the corresponding packing support plate. The spray tank is fixedly connected to and connected to an air inlet pipe, an exhaust pipe, and a liquid outlet pipe. Each spray module is fixedly connected to and connected to a liquid inlet pipe, which is fixedly and through the spray tank. A drive assembly for driving all the pushers to rotate is provided on the spray tank.

[0006] To further explain, the drive assembly includes a drive shaft rotatably connected to the spray tank and a rotating cylinder rotatably connected to the drive shaft. Both ends of the drive shaft and the rotating cylinder are fixedly connected to drive gears. The push frame is fixedly connected to a gear ring. The drive gear meshes with the corresponding gear ring. The spray tank is provided with a drive module for driving the drive shaft and the rotating cylinder to rotate.

[0007] To further explain, the spray tank is slidably connected with the same number of sealing plates as the packing support plates. Several sealing plates are respectively located below the corresponding packing support plates. The sealing plates are provided with uniformly distributed through holes, and the uniformly distributed through holes on the sealing plates are staggered from the uniformly distributed through holes on the corresponding packing support plates.

[0008] To further explain, the top of the spray tank is fixedly connected to symmetrically distributed driving components, the spray tank is slidably connected to a connecting cylinder, several of the sealing plates are fixedly connected to the connecting cylinder, and the telescopic ends of the symmetrically distributed driving components are fixedly connected to the connecting cylinder.

[0009] To further explain, the connecting cylinder is provided with a number of drain holes equal to the number of the packing support plate. Each set of drain holes consists of several drain holes evenly distributed circumferentially. The drain holes are used to connect the spray tank and the connecting cylinder.

[0010] To further explain, the pusher frame is provided with several exhaust channels communicating with the spray tank. The pusher frame and the connecting cylinder are sealed, rotatable, and slidably connected. The pusher frame and the connecting cylinder cooperate to form a communicating cavity. Several exhaust channels on the same pusher frame are all connected to adjacent communicating cavities. An air injection pipe is fixedly connected inside the connecting cylinder. All communicating cavities are connected to the air injection pipe.

[0011] To further explain, the push frame is slidably connected to a blocking frame with the same number of exhaust channels as the above-mentioned one. The blocking frame is used to block the corresponding exhaust channel, and an elastic element is provided between the blocking frame and the corresponding push frame.

[0012] To further explain, the connecting cylinder is fixedly connected with the same number of extrusion rings as the packing support plate. The outer circumference of the extrusion rings gradually increases from the top to the bottom. The extrusion rings are used to extrude all the sealing frames on the corresponding push frame.

[0013] To further explain, the spray tank is fixedly connected to a sealing connection frame, which is used to seal the bottom of the connecting cylinder.

[0014] To further explain, the sealing connection frame is fixedly connected with symmetrically distributed connecting rods, all of which are located inside the connecting cylinder. The symmetrically distributed connecting rods are jointly fixedly connected with sealing rings of the same number as the packing support plate. The sealing rings are used to seal a corresponding set of drain holes, and both sealing rings are slidably connected to the connecting cylinder in a sealing manner.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention drives the packing to move by two pushers at the packing. During the exhaust gas treatment stage, the packing continuously changes its own distribution, making full use of the external area, strengthening gas-liquid contact and mass transfer, and significantly improving the exhaust gas purification efficiency. During the packing cleaning stage, the two pushers rotate in opposite directions, generating a strong scrubbing effect on the packing, effectively removing externally attached impurities.

[0016] 2. By sealing the packing support plate, the accumulated cleaning fluid soaks the packing, increasing the cleaning area of ​​the packing. On the basis of bidirectional scrubbing, gas is introduced to form bubbles. The bursting of the bubbles generates micro-vibration force, which enhances the mechanical scrubbing effect and deeply removes stubborn deposits. At the same time, the bubbles disturb the cleaning fluid, accelerate the dissolution reaction, and significantly improve the thoroughness of cleaning.

[0017] 3. By using gas to carry impurities to the surface of the liquid, and then using the cleaning fluid to carry the impurities out through the drain hole, the stripped impurities no longer penetrate the packing layer, thus achieving physical isolation between dirt and packing, significantly reducing the probability of secondary contamination of the packing, and ensuring the cleanliness of the packing after cleaning.

[0018] 4. By sealing the exhaust channels during the exhaust gas treatment stage using the sealing frame, dust and crystals in the exhaust gas can be effectively prevented from entering and clogging the small exhaust channels, ensuring the long-term reliability of the aeration system. At the same time, the sealing connecting frame and sealing ring seal the connecting cylinder and the drain hole respectively, strictly preventing the exhaust gas from entering the sewage system without purification, ensuring that the gas must pass through the packing layer, and ensuring purification efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the spray tank of the present invention; Figure 3 This is a three-dimensional structural diagram of the pusher frame of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting cylinder of the present invention; Figure 5 This is a three-dimensional structural diagram of the packing support plate and sealing plate of the present invention; Figure 6 This is a three-dimensional cross-sectional view of the connecting cylinder of the present invention; Figure 7 This is a three-dimensional structural diagram of the sealing frame of the present invention; Figure 8 This is a three-dimensional structural diagram of the sealing connection frame of the present invention.

[0020] The markings in the attached diagram are as follows: 1: bracket, 2: spray tank, 3: spray module, 4: packing support plate, 5: push frame, 6: air inlet pipe, 7: exhaust pipe, 8: drain pipe, 9: liquid inlet pipe, 201: drive shaft, 202: rotating cylinder, 203: drive gear, 204: gear ring, 205: drive module, 301: sealing plate, 302: drive component, 303: connecting cylinder, 304: drain hole, 401: exhaust channel, 402: connecting cavity, 403: air injection pipe, 501: sealing frame, 502: elastic element, 503: compression ring, 601: sealing connecting frame, 602: connecting rod, 603: sealing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] Existing spray towers use fixed packing, which easily forms aging liquid films and wetting blind zones, resulting in insufficient gas-liquid mass transfer and limited purification efficiency. The problem is more prominent when treating high dust or viscous exhaust gases. During cleaning, dust, salt scale, and organic matter easily form hard scale on the surface of the packing. Traditional spraying is difficult to remove dead corner deposits, and long-term accumulation reduces flowability and mass transfer performance, affecting the stable operation of the system.

[0023] Example 1

[0024] This embodiment provides a green treatment device for exhaust gas from a vacuum sintering furnace, which improves the purification level of exhaust gas and the cleaning level of packing material.

[0025] like Figures 1-4As shown, the system includes a support frame 1, with a spray tank 2 fixedly connected to the support frame 1. Two spray modules 3 are fixedly connected inside the spray tank 2 (this is illustrated as an example; the following description will use this number as a reference). Each spray module 3 consists of multiple nozzles, connecting pipes, and a support frame. The nozzles are evenly distributed on the support frame and are used to spray spray liquid downwards during exhaust gas treatment and to spray cleaning liquid downwards during packing cleaning. Two packing support plates 4 are fixedly connected inside the spray tank 2. The two spray modules 3 are staggered with the two packing support plates 4, with the spray modules 3 corresponding to the top of the packing support plates 4. The packing support plates 4 are provided with evenly distributed through holes for the passage of gas and liquid (exhaust gas and spray liquid). The spray tank 2 is rotatably and sealingly connected to the packing support plates 4 and the corresponding spray modules 3 by two... Each pusher 5 has a pusher frame 5, and the packing is placed on the packing support plate 4. The packing is located in the corresponding two pusher frames 5. The pusher frame 5 is used to push the packing on the corresponding packing support plate 4. The spray tank 2 is fixedly connected and connected to the air inlet pipe 6, the exhaust pipe 7, and the liquid drain pipe 8. The air inlet pipe 6 is located below the bottom packing support plate 4 and is used to inject the exhaust gas of the vacuum sintering furnace into the spray tank 2. The exhaust pipe 7 is located at the top of the spray tank 2 and is used to discharge the purified exhaust gas. The liquid drain pipe 8 is used to discharge the spray liquid after absorbing the exhaust gas. The spray module 3 is fixedly connected and connected to the liquid inlet pipe 9. The liquid inlet pipe 9 is fixedly connected to the spray tank 2 through it. The liquid inlet pipe 9 is used to inject the spray liquid into the connecting pipe and nozzle of the corresponding spray module 3. The spray tank 2 is equipped with a drive assembly for driving all the pusher frames 5 to rotate.

[0026] like Figures 2-4 As shown, the drive assembly includes a drive shaft 201, which is rotatably connected to the front side of the spray tank 2. A rotating cylinder 202 is rotatably connected to the outside of the drive shaft 201. Both ends of the drive shaft 201 and the rotating cylinder 202 are fixedly connected to drive gears 203. A toothed ring 204 is fixedly connected to the push frame 5. The outer circumference of the push frame 5 has a groove, and the toothed ring 204 is located in the groove of the push frame 5. The drive gears 203 mesh with the corresponding toothed rings 204. That is, the two toothed rings 204 on the upper and lower push frames 5 respectively mesh with the two drive gears 203 on the drive shaft 201. The two toothed rings 204 on the two pushers 5 mesh with the two transmission gears 203 on the rotating drum 202 respectively. The spray tank 2 is equipped with a drive module 205 for driving the drive shaft 201 and the rotating drum 202 to rotate. The drive module 205 consists of two servo motors and two spur gears. The two spur gears are fixedly connected to the output shafts of the two servo motors respectively. One spur gear meshes with the transmission gear 203 at the top of the drive shaft 201, and the other spur gear meshes with the transmission gear 203 at the bottom of the rotating drum 202, thereby realizing the separate control of the drive shaft 201 and the rotating drum 202.

[0027] Working principle: When the exhaust gas from the vacuum sintering furnace needs to be sprayed, spraying liquid is injected into the two spraying modules 3 through two inlet pipes 9. The spraying liquid is sprayed downwards from the spraying modules 3, passes through the packing on the packing support plate 4, and finally falls to the bottom of the spray tank 2. Then it is discharged from the bottom through the drain pipe 8. The exhaust gas is injected into the spray tank 2 through the air inlet pipe 6. The exhaust gas flows upwards in the spray tank 2 and is adsorbed by the spraying liquid. Finally, it is discharged along the exhaust pipe 7 at the top of the spray tank 2. During the exhaust gas purification, the drive module 205 can be turned on, so that the drive module 205 drives the transmission gear 203 at the top of the transmission shaft 201 and the rotating cylinder 202. The bottom transmission gear 203 rotates, thereby causing the transmission shaft 201 and the rotating cylinder 202 to rotate. The transmission shaft 201 and the rotating cylinder 202 drive the corresponding gear ring 204 to rotate through the transmission gear 203 at both ends. The gear ring 204 drives the corresponding push frame 5 to rotate. The rotation of the push frame 5 drives the adjacent packing to move synchronously, continuously changing the distribution state of the packing, making full use of the external area of ​​the packing, and improving the purification degree of the exhaust gas. This continues until the exhaust gas treatment is completed, at which point the injection of exhaust gas into the inlet pipe 6 stops, the injection of spray liquid into the liquid inlet pipe 9 stops, and the drive module 205 is turned off. When exhaust gas needs to be treated again, the above steps are repeated.

[0028] When the packing needs to be cleaned, cleaning fluid is injected into the two inlet pipes 9, causing the spray module 3 to spray the cleaning fluid downwards. The cleaning fluid rinses the packing. At the same time, the drive module 205 is turned on, causing the drive module 205 to drive the transmission shaft 201 and the rotating cylinder 202 to rotate. The rotation directions of the transmission shaft 201 and the rotating cylinder 202 are opposite (the specific transmission principle is the same as described above and will not be repeated here). This causes the two push frames 5 of the same packing layer to rotate in opposite directions, and the upper and lower parts of the packing to rotate in opposite directions, thereby forming a rubbing force between the packing and improving the degree of cleaning of impurities attached to the outside of the packing. The cleaning fluid carries the impurities through the packing support plate 4 and finally falls to the bottom of the spray tank 2 until the packing is cleaned. Then, the injection of cleaning fluid into the inlet pipes 9 is stopped, and the drive module 205 is turned off. When the packing needs to be cleaned again, the above steps are repeated.

[0029] Example 2

[0030] This embodiment provides a green treatment device for the exhaust gas of a vacuum sintering furnace, which is a further improvement on the basis of Embodiment 1.

[0031] like Figure 2 , Figure 4 and Figure 5As shown, two sealing plates 301 are slidably connected inside the spray tank 2. The two sealing plates 301 are located below the corresponding packing support plates 4. The sealing plates 301 have evenly distributed through holes, which are staggered from the through holes on the corresponding packing support plates 4. This allows the sealing plates 301 to seal the through holes on the corresponding packing support plates 4 after they are in contact with each other, causing the cleaning fluid sprayed from the corresponding spray module 3 to accumulate on the upper side of the corresponding packing support plate 4. Initially, the sealing plates 301 do not seal the corresponding packing support plates 4, and there is a distance between the sealing plates 301 and the packing support plates 4. Two symmetrically distributed driving components 302 are fixedly connected to the top of the spray tank 2. The spray tank 2 is electrically driven and slidably connected to a connecting cylinder 303. The bottom of the connecting cylinder 303 is connected to the spray tank 2. Both sealing plates 301 are fixedly connected to the connecting cylinder 303. The telescopic ends of two symmetrically distributed driving components 302 are fixedly connected to the connecting cylinder 303. The telescopic ends of the driving components 302 can drive the two sealing plates 301 to move up and down through the connecting cylinder 303. The connecting cylinder 303 is provided with two sets of drain holes 304. Each set of drain holes 304 consists of three drain holes 304 that are evenly distributed circumferentially. The drain holes 304 are located between the corresponding spray module 3 and the corresponding two push frames 5 to ensure that the cleaning fluid can soak all the filler. The drain holes 304 are used to connect the spray tank 2 and the connecting cylinder 303.

[0032] like Figure 2 and Figures 4-6 As shown, the pusher frame 5 is provided with three exhaust channels 401 that communicate with the spray tank 2. The pusher frame 5 and the connecting cylinder 303 are sealed, rotated and slidably connected. The central axis of the connecting cylinder 303 coincides with the central axis of the pusher frame 5. The pusher frame 5 and the connecting cylinder 303 cooperate to form a connecting cavity 402. The three exhaust channels 401 on the same pusher frame 5 are all connected to the adjacent connecting cavity 402. An air injection pipe 403 is fixedly connected inside the connecting cylinder 303. All connecting cavities 402 are connected to the air injection pipe 403. The distance between the upper and lower sides of the connecting cavity 402 is greater than the distance between the sealing plate 301 and the packing support plate 4, ensuring that when the connecting cylinder 303 drives the air injection pipe 403 to move up and down, the air injection pipe 403 always remains connected to all connecting cavities 402.

[0033] Working principle: Before cleaning the packing material, the operator activates the drive unit 302, causing its telescopic end to move the connecting cylinder 303 upwards. The connecting cylinder 303 then moves the two sealing plates 301 synchronously until the sealing plates 301 are in contact with the corresponding packing support plates 4, sealing them. The drive unit 302 is then closed. At this point, the cleaning fluid sprayed from the spray module 3 accumulates on the upper side of the packing support plate 4. This continues until the cleaning fluid level reaches the corresponding drain hole 304. The cleaning fluid then enters the connecting cylinder 303 and flows downwards into the bottom of the spray tank 2. Then, clean air is injected into the air injection pipe 403. The gas flows along the air injection pipe 4... 03. The gas enters all the connecting chambers 402. The gas in the connecting chambers 402 enters the corresponding three exhaust channels 401. Then, the gas enters the spray tank 2 along the exhaust channels 401. The gas enters the cleaning liquid accumulated on the packing support plate 4 and forms bubbles. During the soaking process of the cleaning liquid, the packing is rubbed by the two push frames 5. With the help of the bursting of the bubbles, the packing vibrates due to the impact of the bursting bubbles, which further improves the cleaning degree of external impurities of the packing. At the same time, the bubbles carry the cleaned impurities upward. The impurities float on the surface of the cleaning liquid and enter the connecting cylinder 303 under the action of the cleaning liquid. The cleaning liquid carries the impurities from the connecting cylinder 303 to the bottom of the spray tank 2, so that the impurities no longer pass through the packing and are discharged, reducing the probability of secondary pollution of the packing.

[0034] After the packing cleaning is completed, the spray module 3 and drive module 205 are turned off, and the drive component 302 is turned on at the same time. The telescopic end of the drive component 302 drives the connecting cylinder 303 to return to the initial state. The connecting cylinder 303 drives the two sealing plates 301 to move downwards and return to the initial position. The drive component 302 is turned off. At this moment, the cleaning liquid accumulated on the packing support plate 4 falls downwards into the bottom of the spray tank 2 and is discharged through the drain pipe 8.

[0035] Example 3

[0036] This embodiment provides a green treatment device for the exhaust gas of a vacuum sintering furnace, which is a further improvement on embodiment 2.

[0037] like Figure 7As shown, the push frame 5 is slidably connected with a number of blocking frames 501 equal to the number of exhaust channels 401 on it. Each blocking frame 501 consists of a blocking slide and a trigger post. The blocking frame 501 is used to block the corresponding exhaust channel 401. Initially, the blocking frame 501 blocks the adjacent exhaust channel 401. An elastic element 502 is provided between the blocking frame 501 and the corresponding push frame 5. The elastic element 502 is an elastic telescopic rod. The fixed part of the elastic element 502 is fixedly connected to the push frame 5, and the telescopic end of the elastic element 502 is connected to the adjacent blocking frame 5. The plugging frame 501 is fixedly connected, and the elastic element 502 is used to drive the adjacent plugging frame 501 to reset. The connecting cylinder 303 is fixedly connected with four compression rings 503. The outer radius of the compression rings 503 gradually increases from the top to the bottom. The compression rings 503 are used to compress all the plugging frames 501 on the corresponding push frame 5. When the connecting cylinder 303 drives the compression rings 503 to move upward, the compression rings 503 push the plugging frame 501 to slide along the push frame 5 through the trigger pin on the plugging frame 501, thereby releasing the plugging frame 501 from blocking the adjacent exhaust channel 401.

[0038] like Figure 2 and Figure 8 As shown, a sealing connection frame 601 is fixedly connected to the bottom of the spray tank 2. The sealing connection frame 601 is used to seal the bottom of the connecting cylinder 303. Initially, the sealing connection frame 601 is in a sealing state to the bottom of the connecting cylinder 303. Two symmetrically distributed connecting rods 602 are fixedly connected to the upper side of the sealing connection frame 601. Both symmetrically distributed connecting rods 602 are located inside the connecting cylinder 303. The two symmetrically distributed connecting rods 602 are fixedly connected to two sealing rings 603. The sealing rings 603 are used to seal a corresponding set of sewage discharge holes 304. Both sealing rings 603 are in a sealing sliding connection with the connecting cylinder 303. In the initial state, the two sealing rings 603 are in a sealing state to the adjacent sewage discharge holes 304.

[0039] Working principle: When the telescopic end of the driving component 302 drives the connecting cylinder 303 to move upward, the connecting cylinder 303 drives the extrusion ring 503 on it to move upward synchronously, so that the extrusion ring 503 extrudes the three adjacent sealing frames 501. The sealing frames 501 slide along the push frame 5 under the extrusion force. At the same time, the elastic element 502 is compressed, releasing the blockage of the adjacent exhaust channel 401, so that the exhaust channel 401 is connected to the spray tank 2, which facilitates the subsequent cleaning of the packing. When the cleaning is completed, when the telescopic end of the driving component 302 drives the connecting cylinder 303 to reset downward, the elastic element 502 drives the adjacent sealing frames 501 to reset to the initial state. The sealing frames 501 block the adjacent exhaust channels 401, thereby avoiding impurities during the exhaust gas treatment from blocking the exhaust channels 401 and affecting the cleaning of the packing.

[0040] When the telescopic end of the driving component 302 drives the connecting cylinder 303 to move upward, the bottom of the connecting cylinder 303 will separate from the sealing connecting frame 601, releasing the sealing of the connecting cylinder 303. At the same time, when the connecting cylinder 303 moves upward, the drain hole 304 moves upward synchronously, causing the drain hole 304 to be misaligned with the corresponding sealing ring 603, releasing the sealing of the drain hole 304, which facilitates the discharge of impurities during packing cleaning. When the telescopic end of the driving component 302 drives the connecting cylinder 303 to reset downward, the bottom of the connecting cylinder 303 will fit with the sealing connecting frame 601, sealing the bottom of the connecting cylinder 303. At the same time, the sealing ring 603 will seal the adjacent drain hole 304, ensuring that during the exhaust gas treatment stage, the exhaust gas will not enter the connecting cylinder 303 and flow upward through the drain hole 304, ensuring the purification level of the exhaust gas.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A green treatment device for exhaust gas from a vacuum sintering furnace, comprising a support (1), wherein a spray tank (2) is fixedly connected to the support (1), a plurality of spray modules (3) are fixedly connected inside the spray tank (2), and a packing support plate (4) of the same number as the spray modules (3) is fixedly connected inside the spray tank (2), wherein the plurality of spray modules (3) and the plurality of packing support plates (4) are staggered, and the spray modules (3) are located above the corresponding packing support plate (4), wherein the packing support plate (4) is provided with uniformly distributed through holes for gas-liquid passage, characterized in that, The spray tank (2) has two pushers (5) that are sealed and rotatably connected between the packing support plate (4) and the corresponding spray module (3). The pushers (5) are used to push the packing on the corresponding packing support plate (4). The spray tank (2) is fixedly connected and connected to an air inlet pipe (6), an exhaust pipe (7) and a drain pipe (8). The spray module (3) is fixedly connected and connected to an inlet pipe (9). The inlet pipe (9) is fixedly connected to the spray tank (2). The spray tank (2) is provided with a drive assembly for driving all the pushers (5) to rotate.

2. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 1, characterized in that, The drive assembly includes a drive shaft (201) rotatably connected to the spray tank (2), a rotating cylinder (202) rotatably connected to the drive shaft (201), and drive gears (203) fixedly connected to both ends of the drive shaft (201) and the rotating cylinder (202). A gear ring (204) is fixedly connected to the push frame (5), and the drive gear (203) meshes with the corresponding gear ring (204). The spray tank (2) is provided with a drive module (205) for driving the drive shaft (201) and the rotating cylinder (202) to rotate.

3. The green treatment device for tail gas from a vacuum sintering furnace according to claim 1, characterized in that, The spray tank (2) is slidably connected with the same number of sealing plates (301) as the packing support plate (4). Several sealing plates (301) are located below the corresponding packing support plate (4). The sealing plates (301) are provided with uniformly distributed through holes. The uniformly distributed through holes on the sealing plates (301) and the uniformly distributed through holes on the corresponding packing support plate (4) are staggered.

4. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 3, characterized in that, The top of the spray tank (2) is fixedly connected with symmetrically distributed drive components (302), and the spray tank (2) is sealed and slidably connected with a connecting cylinder (303). Several of the sealing plates (301) are fixedly connected to the connecting cylinder (303), and the telescopic ends of the symmetrically distributed drive components (302) are fixedly connected to the connecting cylinder (303).

5. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 4, characterized in that, The connecting cylinder (303) is provided with a number of drain holes (304) the same as the number of the packing support plate (4). Each set of drain holes (304) consists of a number of drain holes (304) evenly distributed in the circumference. The drain holes (304) are used to connect the spray tank (2) and the connecting cylinder (303).

6. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 5, characterized in that, The pusher (5) is provided with a plurality of exhaust channels (401) communicating with the spray tank (2). The pusher (5) and the connecting cylinder (303) are sealed, rotated and slidably connected. The pusher (5) and the connecting cylinder (303) cooperate to form a communicating cavity (402). The plurality of exhaust channels (401) on the same pusher (5) are all connected to the adjacent communicating cavity (402). An air injection pipe (403) is fixedly connected inside the connecting cylinder (303). All the communicating cavities (402) are connected to the air injection pipe (403).

7. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 6, characterized in that, The push frame (5) is slidably connected with a number of blocking frames (501) equal to the number of exhaust channels (401) mentioned above. The blocking frames (501) are used to block the corresponding exhaust channels (401). An elastic element (502) is provided between the blocking frame (501) and the corresponding push frame (5).

8. The green treatment device for exhaust gas from a vacuum sintering furnace according to claim 7, characterized in that, The connecting cylinder (303) is fixedly connected with the same number of extrusion rings (503) as the packing support plate (4). The outer radius of the extrusion rings (503) gradually increases from the top to the bottom. The extrusion rings (503) are used to extrude all the sealing frames (501) on the corresponding push frame (5).

9. A green treatment device for tail gas from a vacuum sintering furnace according to claim 8, characterized in that, The spray tank (2) is fixedly connected to a sealing connection frame (601), which is used to seal the bottom of the connecting cylinder (303).

10. A green treatment device for tail gas from a vacuum sintering furnace according to claim 9, characterized in that, The sealing connection frame (601) is fixedly connected with symmetrically distributed connecting rods (602). The symmetrically distributed connecting rods (602) are all located inside the connecting cylinder (303). The symmetrically distributed connecting rods (602) are fixedly connected with the same number of sealing rings (603) as the packing support plate (4). The sealing rings (603) are used to seal a corresponding set of drain holes (304). Both sealing rings (603) are in a sealed sliding connection with the connecting cylinder (303).

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