Self-excited water curtain spray absorption device for asphalt processing

Abstract

The present application relates to environmental protection equipment technical field, and disclose a kind of tail gas self-excitation type water curtain spray absorption device for asphalt processing, including spray component, the bottom of spray component is equipped with sedimentation mechanism, sedimentation mechanism includes sedimentation bin, the inside diagonal edge of sedimentation bin is equipped with edge groove, sliding block is movably sleeved in edge groove, and inter-shaft is fixedly connected between sliding block, the shaft body both ends of inter-shaft are movably sleeved with inner ring, the first inclined plate is fixedly connected with inner ring, inner ring movably sleeved with outer ring, the second inclined plate is fixedly connected with outer ring, the first inclined plate and the second inclined plate are symmetrically sleeved on the shaft body of inter-shaft, and uniformly distributed sedimentation chute is formed in the first inclined plate and the second inclined plate, and uniformly distributed filter hole is also formed in the first inclined plate and the second inclined plate, when the first inclined plate and the second inclined plate are in inclined posture, the opening angle of filter hole is inclined downward, the device can filter the bottom sediment, so that the sediment can be more conveniently discharged.

Description

Technical Field

[0001] This invention relates to the field of environmental protection equipment technology, and more specifically to a self-excited water curtain spray absorption device for exhaust gas in asphalt processing. Background Technology

[0002] Asphalt undergoes heating, mixing, and modification processes during processing, which generate and release asphalt fumes and volatilize a large amount of pollutants. In order to protect the environment from impact, exhaust gas absorption devices are required during asphalt processing. In the current technology, most exhaust gas absorption devices for asphalt processing use self-excited water curtain spray absorption devices. This means that the high-temperature exhaust gas from asphalt is drawn in by the negative pressure of a fan and brought into the narrow throttling channel inside the equipment. The high-speed airflow violently impacts the surface of the water tank at the bottom of the box. The airflow pressure difference forcibly rolls up, tears, and splashes the water, thus forming a multi-layered, turbulent, and continuous water curtain. This method is used to absorb and treat harmful substances in the asphalt exhaust gas. However, the existing self-excited water curtain spray absorption device still has the following shortcomings in actual use; First, in the existing self-excited water curtain spray absorption device, the impurity particles carried in the exhaust gas will settle to the bottom of the device box when it is working. However, the bottom of the box is not isolated from the top of the box. Therefore, when the water in the box is extracted, the sludge at the bottom is easy to rise and be extracted. Moreover, the sludge has a high water content, which is not convenient for sludge discharge. Secondly, in the existing self-excited water curtain spray absorption device, when the exhaust gas passes through the device and is discharged from the device, it carries some water, which lowers the water level at the narrow throttling channel inside the device. When the water level is too low, the exhaust gas cannot impact the liquid surface to form a self-excited water curtain, thus affecting the device's absorption of the exhaust gas. Therefore, in order to solve the above problems, it is necessary to provide a self-excited water curtain spray absorption device for exhaust gas in asphalt processing. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a self-excited water curtain spray absorption device for exhaust gas in asphalt processing, so as to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-excited water curtain spray absorption device for exhaust gas in asphalt processing, comprising a spray assembly, wherein a sedimentation mechanism is provided at the bottom of the spray assembly; The sedimentation mechanism includes a sedimentation chamber. The sedimentation chamber has diagonal grooves on its inner side. Slider blocks are movably sleeved in each groove. A shaft is fixedly connected between the sliders. Inner rings are movably sleeved at both ends of the shaft of the shaft. A first inclined plate is fixedly connected to the inner ring. An outer ring is movably sleeved to the inner ring. A second inclined plate is fixedly connected to the outer ring. The first and second inclined plates are symmetrically sleeved on the shaft of the shaft. The first inclined plate and the second inclined plate are provided with uniformly distributed settling grooves, and the first inclined plate and the second inclined plate are also provided with uniformly distributed filter holes. When the first inclined plate and the second inclined plate are in an inclined position, the opening angle of the filter holes is inclined downward.

[0005] Furthermore, a water replenishment mechanism is provided on the outside of the spray assembly.

[0006] Furthermore, the spray assembly includes a spray chamber, the sedimentation mechanism is installed at the bottom of the spray chamber, an air inlet is provided on the outer side of the spray chamber, a channel plate is fixedly installed on the inner side of the spray chamber, the channel plate is located above the air inlet, an upper throat plate is installed at the bottom of the channel plate, the channel plate and the upper throat plate form an air duct at the air inlet, a lower throat plate is fixedly installed on the inner side of the bottom of the spray chamber, and a narrow throat flow channel is formed between the upper throat plate and the lower throat plate.

[0007] Furthermore, a water-spraying plate is fixedly installed on the inner side of the spray chamber. The water-spraying plate is located below the channel plate. A baffle is fixedly installed between the water-spraying plate, the upper throat plate, and the channel plate. A baffle is fixedly installed on the upper inner side of the spray chamber. An exhaust pipe is fixedly installed at the upper end of the spray chamber. An installation base is fixedly installed on the outer side of the spray chamber. A fan is fixedly installed on the installation base. An air duct is fixedly connected to the exhaust end of the fan. The air duct is fixedly connected to the air inlet of the spray chamber.

[0008] Furthermore, the sedimentation chamber is fixedly installed at the bottom of the spray chamber. The bottom contact ends of the first inclined plate and the second inclined plate are provided with limiting surfaces. When the first inclined plate and the second inclined plate rotate downward, the limiting surfaces contact each other and limit the first inclined plate and the second inclined plate to be in an inclined posture. The top of the first inclined plate and the second inclined plate are provided with limiting edges. When the first inclined plate and the second inclined plate rotate upward, the limiting edges contact each other and limit the first inclined plate and the second inclined plate to be flush.

[0009] Furthermore, on the inner side of the sedimentation tank, the upper ends of the other opposite corner edges are movably connected to the first inclined plate and the second inclined plate, respectively. When the inter-axis moves upward, the first inclined plate and the second inclined plate are tilted. When the inter-axis moves downward, the first inclined plate and the second inclined plate are flush and horizontally separated in the sedimentation tank. A lead screw is movably sleeved in the groove. The lead screw is threadedly connected to the slider. The bottom end of the shaft of the lead screw is connected to a motor. The motor is installed at the bottom of the sedimentation tank.

[0010] Furthermore, a sealing plate is movably installed at the bottom of the sedimentation tank, and a support plate is fixedly installed at the bottom of the sedimentation tank. A fixed shaft is sleeved between the sealing plate and the support plate. The sealing plate seals the bottom of the sedimentation tank. Stain-blocking baffles are installed at the upper and lower ends of the slider in the groove. A water pumping pipe is fixedly connected to the outer side of the bottom of the spray tank, and a valve is installed on the water pumping pipe.

[0011] Furthermore, the baffle has a cavity, and uniformly distributed nozzles are installed at the bottom of the baffle. The nozzles communicate with the cavity of the baffle. A water pipe is fixedly connected to the outer end of the cavity of the baffle. A connecting chamber is fixedly connected to the bottom outer side of the spray chamber. The connecting chamber communicates with the internal space of the spray chamber. A float is movably sleeved on the upper end of the connecting chamber. An insulating column is fixedly connected to the upper end of the float. A conductive column is fixedly connected to the insulating column. A limiting ring is provided at the bottom of the fitting end of the connecting chamber and the float.

[0012] Furthermore, a frame plate is fixedly installed on both sides of the top of the connecting compartment, and a plate sleeve is fixedly installed on the frame plate. An end block is movably sleeved in the plate sleeve, and a spring connects the end block and the plate sleeve. Each end block is equipped with an electric brush, which is located on both sides of the insulating column and in elastic contact with it.

[0013] Furthermore, a power supply is installed on the outside of the connecting chamber, a water tank is provided on the outside of the spray chamber, a water pump is installed on the water tank, the output end of the water pump is connected to a water pipe, and the end blocks on both sides of the insulating column, the power supply, and the water pump are electrically connected in series to form a power supply circuit.

[0014] The technical effects and advantages of this invention are as follows: During the exhaust gas absorption stage, the first and second inclined plates are tilted. When the impurity particles carried in the exhaust gas begin to settle from the bottom of the spray chamber, they will first come into contact with the tilted first and second inclined plates and slide down along the settling chute. This shortens the settling distance of the impurity particles and reduces the sliding path along the first and second inclined plates, thus significantly reducing the settling time. When the settled material accumulates on the bottom sealing plate, the motor drives the lead screw to rotate, thereby driving the slider to move downward, which in turn causes the interaxial shaft to move downward. This changes the first and second inclined plates from an inclined state to a level state and moves downward, thus pressing and filtering the settled material accumulated on the sealing plate. By opening the valve, water can be extracted from the top of the settled material through the water pipe, thereby reducing the water content of the settled material and facilitating its discharge and collection. When the exhaust gas passes through the spray chamber carrying some water, the liquid level at the lower throat plate drops, causing the float to decrease in height. This causes the conductive column to move downwards and contact the brushes on both sides, thus connecting the power supply circuit. This activates the water pump, which supplies liquid to the cavity of the baffle through the water pipe. The nozzles spray downwards to form a replenishing water curtain. While purifying the exhaust gas passing through this area, the liquid level at the lower throat plate is restored, causing the float to move upwards. The insulating column then contacts the brushes on both sides, disconnecting the power supply circuit and stopping the replenishment of liquid. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the spray assembly of the present invention; Figure 3 This is a schematic cross-sectional view of the sedimentation mechanism of the present invention; Figure 4 This is a schematic diagram of the interaxial structure of the present invention; Figure 5 This is a schematic cross-sectional view of the elastic telescopic rod of the present invention; Figure 6 This is a schematic diagram of the structure when the first inclined plate and the second inclined plate of the present invention are flush. Figure 7 This is a schematic diagram of the settlement chute structure of the present invention; Figure 8 This is a schematic diagram of the sealing plate structure of the present invention; Figure 9 This is a schematic cross-sectional view of the baffle structure of the present invention; Figure 10 This is a schematic cross-sectional view of the connecting compartment of the present invention; Figure 11 This is a schematic cross-sectional view of the end block structure of the present invention; Figure 12 This is a schematic diagram of the water tank structure of the present invention.

[0016] The attached figures are labeled as follows: 1. Spray assembly; 101. Spray chamber; 102. Channel plate; 103. Upper throat plate; 104. Lower throat plate; 105. Water jet plate; 106. Baffle; 107. Exhaust pipe; 108. Mounting base; 109. Fan; 110. Air duct; 2. Sedimentation mechanism; 201. Sedimentation chamber; 202. Ribbon; 203. Slider; 204. Interval shaft; 205. Inner ring; 206. First inclined plate; 207. Outer ring; 208. Second inclined plate; 209. Limiting surface; 210. Limiting edge; 211. Elastic telescopic rod; 212. Wire 213. Lever; 214. Motor; 215. Sealing plate; 216. Support plate; 217. Fixed shaft; 218. Sewage baffle; 219. Pumping pipe; 220. Valve; 221. Settling chute; 222. Filter hole; 301. Water supply mechanism; 302. Nozzle; 303. Water pipe; 304. Connecting compartment; 305. Float; 306. Insulating column; 307. Conductive column; 308. Limiting ring; 309. Frame plate; 310. Plate sleeve; 311. End block; 312. Spring; 313. Brush; 314. Power supply; 315. Water tank; 316. Water pump. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The self-excited water curtain spray absorption device for exhaust gas in asphalt processing involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Reference Figure 1 The present invention provides a self-excited water curtain spray absorption device for exhaust gas in asphalt processing, including a spray assembly 1, a sedimentation mechanism 2 at the bottom of the spray assembly 1, and a water replenishment mechanism 3 on the outside of the spray assembly 1. When the device is in use, the spray assembly 1 purifies and absorbs the asphalt exhaust gas. The impurity particles carried in the exhaust gas settle in the sedimentation mechanism 2. The sedimentation mechanism 2 isolates and filters the bottom sediment. The water replenishment mechanism 3 replenishes water when the water level in the spray assembly 1 drops, to prevent the asphalt exhaust gas from failing to generate a water curtain.

[0019] Reference Figure 2The spray assembly 1 includes a spray chamber 101, a sedimentation mechanism 2 installed at the bottom of the spray chamber 101, an air inlet on the outer side of the spray chamber 101, a channel plate 102 fixedly installed on the inner side of the spray chamber 101, the channel plate 102 being located above the air inlet, an upper throat plate 103 installed at the bottom of the channel plate 102, the channel plate 102 and the upper throat plate 103 forming an air duct at the air inlet, a lower throat plate 104 fixedly installed on the inner bottom of the spray chamber 101, a narrow throat flow channel forming between the upper throat plate 103 and the lower throat plate 104, and the inner side of the spray chamber 101 also... A water jet plate 105 is fixedly installed. The water jet plate 105 is located below the channel plate 102. A baffle channel is formed between the water jet plate 105, the upper throat plate 103, and the channel plate 102. A baffle 106 is fixedly installed on the upper inner side of the spray chamber 101. An exhaust pipe 107 is fixedly installed at the upper end of the spray chamber 101. An installation base 108 is fixedly installed on the outer side of the spray chamber 101. A fan 109 is fixedly installed on the installation base 108. An air duct 110 is fixedly connected to the exhaust end of the fan 109. The air duct 110 is fixedly connected to the air inlet of the spray chamber 101. When the device is in use, the exhaust gas generated during the asphalt processing is introduced into the spray chamber 101 through the air inlet of the spray chamber 101 via the blower 109 and the air duct 110. Water is injected into the spray chamber 101, and the water level is above the lower throat plate 104. The exhaust gas violently impacts the bottom liquid surface of the spray chamber 101 downwards, and when passing through the narrow throat channel, it rolls up and tears the water. The water splashes to form a multi-layered, turbulent, and continuous water curtain. Harmful substances in the exhaust gas are absorbed by the water curtain, impurities settle downwards, and the airflow flows along the deflection channel and is discharged outwards from the exhaust pipe 107.

[0020] Reference Figures 3-8 The sedimentation mechanism 2 includes a sedimentation chamber 201, which is fixedly installed at the bottom of the spray chamber 101. The sedimentation chamber 201 has diagonally opposite inner edges with grooves 202. Slider blocks 203 are movably fitted into each groove 202. A shaft 204 is fixedly connected between the sliders 203. Inner rings 205 are movably fitted to both ends of the shaft 204. A first inclined plate 206 is fixedly connected to the inner ring 205. An outer ring 207 is movably fitted to the inner ring 205. A second inclined plate 208 is fixedly connected to the outer ring 207. The first inclined plate 206 and the second inclined plate 208 are symmetrical. The shaft is fitted onto the shaft 204. The bottom contact ends of the first inclined plate 206 and the second inclined plate 208 are provided with limiting surfaces 209. When the first inclined plate 206 and the second inclined plate 208 rotate downward, the limiting surfaces 209 contact each other and limit the first inclined plate 206 and the second inclined plate 208 to be in an inclined posture. The top of the first inclined plate 206 and the second inclined plate 208 is provided with limiting edges 210. When the first inclined plate 206 and the second inclined plate 208 rotate upward, the limiting edges 210 contact each other and limit the first inclined plate 206 and the second inclined plate 208 to be flush. On the inner side of the sedimentation tank 201, at the upper end of the other opposite corner edge, there are elastic telescopic rods 211 that are movably connected to the first inclined plate 206 and the second inclined plate 208 respectively. When the inter-shaft 204 moves upward, the first inclined plate 206 and the second inclined plate 208 are tilted. When the inter-shaft 204 moves downward, the first inclined plate 206 and the second inclined plate 208 are flush and horizontally separated in the sedimentation tank 201. A lead screw 212 is movably sleeved in the groove 202. The lead screw 212 is threadedly sleeved with the slider 203. The bottom end of the shaft of the lead screw 212 is connected to a motor 213. The motor 213 is installed at the bottom of the sedimentation tank 201. A sealing plate 214 is movably installed at the bottom of the sedimentation tank 201, and a support plate 215 is fixedly installed at the bottom of the sedimentation tank 201. A fixed shaft 216 is sleeved between the sealing plate 214 and the support plate 215. The sealing plate 214 seals the bottom of the sedimentation tank 201. The upper and lower ends of the slider 203 in the groove 202 are also equipped with dirt-blocking baffles 217. A water pumping pipe 218 is fixedly connected to the outer side of the bottom of the spray tank 101. A valve 219 is installed on the water pumping pipe 218. The first inclined plate 206 and the second inclined plate 208 are provided with uniformly distributed settling grooves 220, and the first inclined plate 206 and the second inclined plate 208 are also provided with uniformly distributed filter holes 221. When the first inclined plate 206 and the second inclined plate 208 are in an inclined position, the opening angle of the filter holes 221 is inclined downward. During operation, in the exhaust gas absorption stage, the first inclined plate 206 and the second inclined plate 208 are tilted. When impurity particles carried in the exhaust gas begin to settle from the bottom of the spray chamber 101, they will first come into contact with the tilted first inclined plate 206 and the second inclined plate 208, and then slide down along the settling chute 220. This shortens the settling distance of the impurity particles, as the sliding path along the first inclined plate 206 and the second inclined plate 208 is short, thus significantly reducing the settling time. When the settled material accumulates at the bottom... When the sediment is on the sealing plate 214, the motor 213 drives the lead screw 212 to rotate, thereby driving the slider 203 to move downward, which in turn causes the shaft 204 to move downward, thereby changing the first inclined plate 206 and the second inclined plate 208 from an inclined state to a flat state and moving downward, thereby pressing and filtering the sediment accumulated on the sealing plate 214. By opening the valve 219, water can be extracted from the top of the sediment through the water pipe 218, thereby reducing the water content of the sediment and facilitating the discharge and collection of the sediment. It should be noted that the motor 213 can be powered and controlled by an external power source. Since the control method of the external power source is a conventional technical means known to those skilled in the art, it will not be described in detail in this embodiment. When the first inclined plate 206 and the second inclined plate 208 are in an inclined position, the opening angle of the filter hole 221 is tilted downwards in order to prevent impurity particles from entering the filter hole 221 and clogging it when they slide down the first inclined plate 206 and the second inclined plate 208.

[0021] Reference Figures 9-12 A cavity is formed in the baffle 106, and evenly distributed nozzles 301 are installed at the bottom of the baffle 106. The nozzles 301 communicate with the cavity of the baffle 106. A water pipe 302 is fixedly connected to the outer end of the cavity of the baffle 106. A connecting chamber 303 is fixedly connected to the outer bottom of the spray chamber 101. The connecting chamber 303 communicates with the internal space of the spray chamber 101. A float 304 is movably sleeved at the upper end of the connecting chamber 303. An insulating column 305 is fixedly connected to the upper end of the float 304. A conductive column 306 is fixedly connected to the insulating column 305. A limiting ring 307 is provided at the bottom of the fitting end of the connecting chamber 303 and the float 304. Both sides of the top of the connecting chamber 303 are fixedly... A frame plate 308 is fixedly installed, and a plate sleeve 309 is fixedly installed on the frame plate 308. An end block 310 is movably sleeved in the plate sleeve 309. A spring 311 connects the end block 310 and the plate sleeve 309. A brush 312 is installed on each end block 310. The brushes 312 are located on both sides of the insulating column 305 and are in elastic contact with it. A power supply 313 is installed on the outside of the connecting chamber 303. A water tank 314 is provided on the outside of the spray chamber 101. A water pump 315 is installed on the water tank 314. The output end of the water pump 315 is connected to the water pipe 302. The end blocks 310 on both sides of the insulating column 305, the power supply 313, and the water pump 315 are electrically connected in series to form a power supply circuit. When the device is in use, after the exhaust gas passes through the spray chamber 101 and carries some water, the liquid level at the lower throat plate 104 drops, thereby lowering the height of the float 304. This causes the conductive column 306 to move downward and contact the brushes 312 on both sides, thus connecting the power supply circuit. This causes the water pump 315 to start and supply liquid to the cavity of the baffle 106 through the water pipe 302. The nozzle 301 sprays downward to form a replenishing water curtain. While spraying and purifying the exhaust gas passing through this area, the liquid level at the lower throat plate 104 is restored, the float 304 moves upward, and the insulating column 305 contacts the brushes 312 on both sides, thereby disconnecting the power supply circuit and stopping the replenishment of liquid.

[0022] The working principle of this invention is as follows: During the exhaust gas absorption stage, the first inclined plate 206 and the second inclined plate 208 are in an inclined position. When the impurity particles carried in the exhaust gas begin to settle from the bottom of the spray chamber 101, they will first come into contact with the inclined first inclined plate 206 and the second inclined plate 208, and then sink and slide down along the settling chute 220. This shortens the settling distance of the impurity particles, as the sliding path along the first inclined plate 206 and the second inclined plate 208 is short, thus significantly reducing the settling time. When the settled material accumulates in the... When the bottom sealing plate 214 is in place, the motor 213 drives the lead screw 212 to rotate, thereby causing the slider 203 to move downward, which in turn causes the intermediate shaft 204 to move downward, thereby changing the first inclined plate 206 and the second inclined plate 208 from an inclined state to a flat state and moving downward, thereby pressing and filtering the sediment accumulated on the sealing plate 214. By opening the valve 219, water can be extracted from the top of the sediment through the water pumping pipe 218, thereby reducing the water content of the sediment and facilitating the discharge and collection of the sediment. When the exhaust gas passes through the spray chamber 101 carrying some water, the liquid level at the lower throat plate 104 drops, causing the float 304 to decrease in height. This causes the conductive column 306 to move downward and contact the brushes 312 on both sides, thus connecting the power supply circuit. This activates the water pump 315, which supplies liquid to the cavity of the baffle 106 through the water pipe 302. The nozzle 301 sprays downward to form a replenishing water curtain. While purifying the exhaust gas passing through this area, the liquid level at the lower throat plate 104 is restored, the float 304 moves upward, and the insulating column 305 contacts the brushes 312 on both sides, thus disconnecting the power supply circuit and stopping the replenishment.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, 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 self-excited water curtain spray absorption device for exhaust gas in asphalt processing, comprising a spray assembly (1), characterized in that: The bottom of the spray assembly (1) is provided with a sedimentation mechanism (2); The sedimentation mechanism (2) includes a sedimentation chamber (201). The sedimentation chamber (201) has a groove (202) at the diagonal edge of its inner side. A slider (203) is movably sleeved in each groove (202). An intermediate shaft (204) is fixedly connected between the sliders (203). An inner ring (205) is movably sleeved at both ends of the shaft of the intermediate shaft (204). A first inclined plate (206) is fixedly connected to the inner ring (205). An outer ring (207) is movably sleeved to the inner ring (205). A second inclined plate (208) is fixedly connected to the outer ring (207). The first inclined plate (206) and the second inclined plate (208) are symmetrically sleeved on the shaft of the intermediate shaft (204). The first inclined plate (206) and the second inclined plate (208) are provided with uniformly distributed settling grooves (220), and the first inclined plate (206) and the second inclined plate (208) are also provided with uniformly distributed filter holes (221). When the first inclined plate (206) and the second inclined plate (208) are in an inclined position, the opening angle of the filter holes (221) is inclined downward.

2. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 1, characterized in that: The spray assembly (1) is provided with a water replenishment mechanism (3) on its outer side.

3. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 2, characterized in that: The spray assembly (1) includes a spray chamber (101), the sedimentation mechanism (2) is installed at the bottom of the spray chamber (101), an air inlet is provided on the outer side of the spray chamber (101), a channel plate (102) is fixedly installed on the inner side of the spray chamber (101), the channel plate (102) is located above the air inlet, an upper throat plate (103) is installed at the bottom of the channel plate (102), the channel plate (102) and the upper throat plate (103) form an air duct at the air inlet, a lower throat plate (104) is fixedly installed on the inner side of the bottom of the spray chamber (101), and a narrow throat flow channel is formed between the upper throat plate (103) and the lower throat plate (104).

4. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 3, characterized in that: A water jet plate (105) is fixedly installed on the inner side of the spray chamber (101). The water jet plate (105) is located below the channel plate (102). A baffle channel is formed between the water jet plate (105), the upper throat plate (103), and the channel plate (102). A baffle plate (106) is fixedly installed on the upper inner side of the spray chamber (101). An exhaust pipe (107) is fixedly installed at the upper end of the spray chamber (101). An installation base (108) is fixedly installed on the outer side of the spray chamber (101). A fan (109) is fixedly installed on the installation base (108). An air duct (110) is fixedly connected to the exhaust end of the fan (109). The air duct (110) is fixedly connected to the air inlet of the spray chamber (101).

5. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 4, characterized in that: The sedimentation chamber (201) is fixedly installed at the bottom of the spray chamber (101). The bottom contact ends of the first inclined plate (206) and the second inclined plate (208) are provided with limiting surfaces (209). When the first inclined plate (206) and the second inclined plate (208) rotate downward, the limiting surfaces (209) contact each other and limit each other so that the first inclined plate (206) and the second inclined plate (208) are in an inclined posture. The top of the first inclined plate (206) and the second inclined plate (208) is provided with limiting edges (210). When the first inclined plate (206) and the second inclined plate (208) rotate upward, the limiting edges (210) contact each other and limit each other so that the upper surfaces of the first inclined plate (206) and the second inclined plate (208) are flush.

6. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 5, characterized in that: The upper ends of the other opposite corner edges of the inner side of the sedimentation tank (201) are movably connected to the first inclined plate (206) and the second inclined plate (208) respectively. When the inter-shaft (204) moves upward, the first inclined plate (206) and the second inclined plate (208) are tilted. When the inter-shaft (204) moves downward, the first inclined plate (206) and the second inclined plate (208) are flush and horizontally separated in the sedimentation tank (201). A lead screw (212) is movably sleeved in the groove (202). The lead screw (212) is threadedly sleeved with the slider (203). The bottom end of the shaft of the lead screw (212) is connected to a motor (213). The motor (213) is installed at the bottom of the sedimentation tank (201).

7. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 6, characterized in that: A sealing plate (214) is movably installed at the bottom of the sedimentation tank (201), and a support plate (215) is fixedly installed at the bottom of the sedimentation tank (201). A fixed shaft (216) is sleeved between the sealing plate (214) and the support plate (215). The sealing plate (214) seals the bottom of the sedimentation tank (201). A dirt-blocking baffle (217) is installed at the upper and lower ends of the slider (203) in the groove (202). A water pumping pipe (218) is fixedly connected to the outer side of the bottom of the spray tank (101). A valve (219) is installed on the water pumping pipe (218).

8. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 7, characterized in that: A cavity is provided in the baffle (106), and nozzles (301) are evenly distributed at the bottom of the baffle (106). The nozzles (301) are connected to the cavity of the baffle (106). A water pipe (302) is fixedly connected to the outer end of the cavity of the baffle (106). A connecting chamber (303) is fixedly connected to the outer bottom of the spray chamber (101). The connecting chamber (303) is connected to the internal space of the spray chamber (101). A float (304) is movably sleeved on the upper end of the connecting chamber (303). An insulating column (305) is fixedly connected to the upper end of the float (304). A conductive column (306) is fixedly connected to the insulating column (305). A limiting ring (307) is provided at the bottom of the fitting end of the connecting chamber (303) and the float (304).

9. The self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 8, characterized in that: The top two sides of the connecting compartment (303) are fixedly installed with a frame plate (308), and a plate sleeve (309) is fixedly installed on the frame plate (308). An end block (310) is movably sleeved in the plate sleeve (309). A spring (311) is connected between the end block (310) and the plate sleeve (309). A brush (312) is installed on each end block (310). The brushes (312) are located on both sides of the insulating column (305) and are in elastic contact with it.

10. A self-excited water curtain spray absorption device for asphalt processing exhaust gas according to claim 9, characterized in that: A power supply (313) is installed on the outside of the connecting chamber (303), and a water tank (314) is provided on the outside of the spray chamber (101). A water pump (315) is installed on the water tank (314), and the output end of the water pump (315) is connected to the water pipe (302). The end blocks (310) on both sides of the insulating column (305), the power supply (313) and the water pump (315) are electrically connected in series to form a power supply circuit.

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