Treatment equipment for modified asphalt production waste gas and use method of treatment equipment

Abstract

The invention relates to the technical field of asphalt waste gas treatment, and discloses modified asphalt production waste gas treatment equipment which comprises an electrostatic dust collection assembly, a combustion assembly, an adsorption assembly and an air blower I. An outlet of the electrostatic dust collection assembly and the air inlet end of the air blower I are connected through a connecting air pipe I; the air outlet end of the first air blower is connected with an inlet of the combustion assembly through a second connecting air pipe, an outlet of the combustion assembly is connected with an inlet of the adsorption assembly, and a second air blower is arranged at an outlet of the adsorption assembly. According to the scheme, waste gas is sequentially subjected to electrostatic dust collection treatment, combustion treatment and activated carbon adsorption treatment and finally discharged, and the environment-friendly treatment effect on the waste gas can be effectively improved through the triple treatment mode.

Description

Technical Field

[0001] This invention relates to the field of asphalt waste gas treatment, specifically to a treatment device for modified asphalt production waste gas and its usage method. Background Technology

[0002] Asphalt production inevitably generates a large amount of waste gas, which contains volatile organic compounds, particulate matter, oil mist, and so on. Electrostatic dust removal, combustion, and activated carbon adsorption are all methods for asphalt treatment.

[0003] A search for electrostatic precipitator technology revealed a Chinese utility model patent, CN222186992U, which discloses an automatic cleaning mechanism for electrostatic precipitators in thermal power plants. This mechanism uses an elastic scraper that slides up and down against the inside of the chimney to intermittently clean the inner wall of the chimney. While it achieves automated cleaning, it still has some shortcomings. Specifically: because asphalt exhaust gas contains oil mist and particulate matter, oil and sludge easily form on the surface of the collecting electrode during electrostatic precipitator treatment. Under the baking of high-temperature flue gas, these substances tend to harden and solidify, affecting the treatment effect. Therefore, the intermittent cleaning operation can negatively impact the treatment effect and needs improvement. After the sludge is scraped off, its valuable and harmless components need to be efficiently separated for resource utilization. However, the scraped-off sludge is in clumps and requires special crushing, which is not conducive to subsequent resource recovery.

[0004] Based on the above problems, this invention proposes a treatment device for waste gas from modified asphalt production and its usage method. Summary of the Invention

[0005] To address the problems mentioned in the background above, the present invention provides a treatment device for waste gas from modified asphalt production and a method for using the same.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0007] A treatment device for waste gas from modified asphalt production includes an electrostatic precipitator, a combustion assembly, an adsorption assembly, and a blower. The outlet of the electrostatic precipitator is connected to the inlet of the blower via a connecting pipe, the outlet of the blower is connected to the inlet of the combustion assembly via a connecting pipe, the outlet of the combustion assembly is connected to the inlet of the adsorption assembly, and the outlet of the adsorption assembly is provided with a blower.

[0008] The electrostatic dust removal assembly includes an outer shell, with a cover at each of the two open ends of the outer shell. An input hole is coaxially opened on the end face of one cover, and an output hole is coaxially opened on the end cover of the other cover. Multiple dust removal units are arranged in an array inside the outer shell along its own axis.

[0009] The dust removal unit includes an emitter, a dust collector, and a rotating shaft. The emitter is located on the side of the dust collector facing the input pipe. The emitter is circular in shape and its outer ring is connected to the inner wall of the outer shell. The rotating shaft is coaxial with the outer shell. The dust collector is circular in shape and coaxially sleeved on the outside of the rotating shaft. There is a flow gap between the outer ring of the dust collector and the inner wall of the outer shell for the flow of exhaust gas.

[0010] Furthermore, the electrostatic dust removal assembly also includes a cleaning component for cleaning oil stains from the dust collecting electrode. The cleaning component includes a storage box and a cleaning unit, and the number of cleaning units is set to correspond to the number of dust collecting electrodes.

[0011] The cleaning unit includes an oil scraper box and a ring seat sleeved on the outside of the rotating shaft. There are two ring seats, which are located on both sides of the dust collection electrode and are in contact with the dust collection electrode.

[0012] One end of the oil scraper box is connected to the ring seat, and the other end extends out of the outer cylinder shell and is connected to the storage box. The oil scraper box is provided with a notch to avoid the dust collection electrode. The notch extends to the end of the oil scraper box connected to the ring seat. There is a clearance between the upper opening of the notch and the dust collection electrode to avoid oil stains.

[0013] Each of the two holes along the width direction of the notch has a mounting groove. The mounting groove extends through both sides along its own length direction to both ends of the oil scraper box along its own length direction. An auger is installed in the mounting groove.

[0014] Furthermore, a lower scraper is provided on the lower side of the mounting slot opening, with the ends of the two lower scrapers respectively fitting into the two end faces of the dust collection electrode;

[0015] An upper scraper is provided at the opening of the mounting slot. The upper scraper extends parallel to the length of the oil scraper box and is close to the dust collection electrode.

[0016] Furthermore, one end of the auger passes through the storage box and is connected to the second motor via a power connector.

[0017] Furthermore, the rotating shaft of the dust removal unit located on one side of the array direction is coaxially connected to a connecting shaft. The end of the connecting shaft passes through the input pipe and is powered to the first motor. The rotating shafts of two adjacent dust removal units are connected by a power transmission component. The transmission ratio of the power transmission component increases along the array direction of the dust removal units and from the input pipe to the output pipe. The transmission ratio of all power transmission components is greater than one.

[0018] Furthermore, an input tube is provided at the opening of the input hole, and an input nozzle is provided on the outer circular surface of the input tube. An output tube is provided at the opening of the output hole, and an output nozzle is provided on the outer circular surface of the output tube. The output nozzle is connected to the connecting air tube.

[0019] Furthermore, the combustion assembly includes an outer stove shell, a heat storage ring is coaxially sleeved inside the outer stove shell, a connecting ring is coaxially provided at the end of the heat storage ring, and the end of the connecting ring passes through the end cap provided at the end of the outer stove shell and is poweredly connected to a third motor.

[0020] A semi-cylindrical shape is coaxially arranged inside the heat storage ring. The semi-cylindrical shape is located below the axis of the heat storage ring, and the outer circular surface of the semi-cylindrical shape is in contact with the inner ring surface of the heat storage ring.

[0021] The interior of the semi-cylinder is hollow and equipped with a partition, which divides the bottom of the semi-cylinder into two chambers, and the two chambers are connected by a connecting port.

[0022] The end cap is equipped with an air inlet and an air outlet. The air inlet is connected to one chamber of the semi-cylinder. The upper surface of the other chamber of the semi-cylinder is equipped with an exhaust pipe. The air outlet is connected to the space above the semi-cylinder. An exhaust pipe is provided at the end of the air outlet.

[0023] Furthermore, a combustion main pipe connected to the exhaust pipe is provided in the space above the semi-cylinder. A combustion branch pipe is provided on the outer circular surface of the combustion main pipe and the two are connected through a connecting hole. Multiple combustion branch pipes are arranged in an array along the axis of the combustion main pipe. The combustion main pipe is connected to the exhaust pipe.

[0024] The combustion main pipe contains an auxiliary main pipe, with both ends of the auxiliary main pipe extending out of the outer stove shell. One end of the auxiliary main pipe is used to receive oxygen, and the other end is used to receive gas. The outer circular surface of the auxiliary main pipe is provided with an installation hole, and an auxiliary branch pipe is provided at the upper opening of the installation hole. The upper end of the auxiliary branch pipe extends into the combustion branch pipe, and the part of the auxiliary branch pipe located inside the combustion branch pipe is provided with several side holes.

[0025] Furthermore, the adsorption assembly includes an adsorption tank containing activated carbon, a first pipe is provided at the end of the exhaust pipe, the end of the first pipe extends into the adsorption tank and is close to the top of the tank, and a second pipe is provided at the air inlet of the second blower, the end of the second pipe extends into the adsorption tank and is close to the bottom of the tank.

[0026] A method for using a treatment device for waste gas from modified asphalt production:

[0027] Step 1: The exhaust gas enters the outer shell through the inlet, then passes through the space between the emitter and the rotating shaft and enters the high-voltage electric field between the emitter and the dust collector. After the exhaust gas comes into contact with the dust collector, it flows around along the end face of the dust collector and enters the next high-voltage electric field through the flow gap between the dust collector and the inner wall of the outer shell. The dust collector adsorbs particulate matter and oil in the exhaust gas.

[0028] At the same time, the rotating shaft rotates along with the dust collection electrode. The lower scraper and upper scraper can scrape off the oil on the dust collection electrode and let it fall into the oil scraping box. The auger will then pull it into the storage box, thus cleaning the dust collection electrode.

[0029] Step 2: The treated exhaust gas enters the combustion branch pipe through the output hole, connecting pipe 1, connecting pipe 2, air inlet, semi-cylindrical chamber, exhaust pipe and combustion main pipe. At the same time, oxygen and fuel gas enter the combustion branch pipe through the auxiliary main pipe and auxiliary branch pipe, and ignition realizes the combustion treatment of exhaust gas.

[0030] Step 3: After the preset time, the gas supply is turned off, and oxygen continues to enter the combustion pipe. At the same time, the heat storage ring rotates to preheat the semi-cylinder.

[0031] Step 4: The exhaust gas after combustion enters the adsorption component, undergoes adsorption by activated carbon, and is then discharged.

[0032] Compared with the prior art, the beneficial effects of this invention are as follows:

[0033] This solution sequentially treats the waste gas through electrostatic dust removal, combustion, and activated carbon adsorption before final emission. This triple treatment method effectively improves the environmental protection effect of the waste gas treatment. Furthermore:

[0034] I. During electrostatic dust removal;

[0035] 1. It achieves multiple electrostatic dust removal treatments for exhaust gas, resulting in better treatment effect. Furthermore, since the exhaust gas flows along the end face of the dust collecting electrode and enters the next high-voltage electric field through the flow gap, all parts of the end face of the dust collecting electrode participate in the electrostatic dust removal treatment. That is, the particulate matter and oil are evenly distributed on the end face of the dust collecting electrode, which indirectly improves the effect of a single electrostatic dust removal treatment.

[0036] 2. During electrostatic dust removal, the first and second motors start, causing the rotating shaft and auger to rotate. The rotating shaft rotates the dust collecting electrode together, meaning that the lower scraper, upper scraper, and dust collecting electrode rotate relative to each other. The lower scraper and upper scraper scrape off the oil on the dust collecting electrode, which falls into the oil scraping box and is then pulled into the storage box by the auger, thus cleaning the dust collecting electrode. Its technical advantages are:

[0037] a. The temperature of asphalt exhaust gas is generally high. Under high temperature baking, the oil stains on the surface of the dust collection electrode are easy to solidify. In this solution, the oil stains are first scraped off by the upper scraper and then scraped off by the lower scraper. The scraped-off oil stains are thin and are easily crushed and pulled out into the storage box after contacting the rotating auger. The crushed oil stains are also beneficial for the subsequent resource recovery of oil sludge.

[0038] b. Since the dust collecting electrode can continue to rotate during the treatment process, it can treat the exhaust gas and clean it at the same time, making the cleaning uninterrupted and continuous. Therefore, it can further improve the treatment effect of the dust collecting electrode on the exhaust gas.

[0039] c. In this solution, multiple electrostatic dust removal processes are used. Therefore, the more oil stains are on the dust collection electrode, the further forward it goes. Also, because the rotation speed of the dust collection electrode is faster the further forward it goes, the dust collection electrode can be effectively cleaned. The dust collection electrodes at the back will not be damaged by dry scraping.

[0040] II. During combustion treatment;

[0041] First, during startup, exhaust gas enters the combustion manifold, while oxygen and fuel gas enter the combustion manifold through the auxiliary main pipe and auxiliary branch pipes. Ignition is achieved using existing technology to treat the exhaust gas through combustion.

[0042] After the preset time, the gas supply stops, and oxygen continues to enter the combustion manifold. At the same time, the heat storage ring rotates to preheat the semi-cylinder, which increases the pressure inside the semi-cylinder. The high temperature and high pressure promote the complete combustion of the exhaust gas, and the complete combustion further promotes the heat storage of the heat storage ring, thereby further promoting the preheating of the semi-cylinder. This creates a positive feedback loop, allowing the exhaust gas to be fully combusted. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of the present invention;

[0044] Figure 2 This is a schematic diagram of the electrostatic precipitator assembly.

[0045] Figure 3 This is a cross-sectional view of an electrostatic precipitator assembly.

[0046] Figure 4 This is a schematic diagram of the dust collection electrode and the cleaning unit;

[0047] Figure 5 This is a cross-sectional view of the dust collector and cleaning unit;

[0048] Figure 6 This is a schematic diagram of the combustion assembly.

[0049] Figure 7This is a cross-sectional view of the combustion assembly;

[0050] Figure 8 This is a cross-sectional view of the combustion unit;

[0051] Figure 9 This is a cross-sectional view of the adsorption component.

[0052] The labels in the attached diagram are:

[0053] 100. Electrostatic dust removal assembly; 101. Outer shell; 102. Input pipe; 103. Input nozzle; 104. Output pipe; 105. Output nozzle; 106. First motor; 107. Connecting shaft; 108. Emitter; 109. Dust collecting electrode; 110. Storage box; 111. Second motor; 112. Power connector; 113. Rotating shaft; 114. Ring seat; 115. Oil scraper box; 116. Notch; 117. Mounting slot; 118. Screwdriver; 119. Upper scraper; 200. Combustion assembly; 201. Outer shell; 202. Air inlet. ; 203, Exhaust nozzle; 204, Exhaust pipe; 205, Third motor; 206, Heat storage ring; 207, Semi-cylinder; 208, Baffle plate; 209, Connection port; 210, Exhaust pipe; 211, Combustion main pipe; 212, Combustion branch pipe; 213, Connection hole; 214, Auxiliary main pipe; 215, Auxiliary branch pipe; 216, Side hole; 300, Adsorption assembly; 301, Adsorption tank; 302, Pipe 1; 303, Pipe 2; 304, Blower 2; 400, Blower 1; 401, Connecting air pipe 1; 402, Connecting air pipe 2. Detailed Implementation

[0054] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0055] Reference Figure 1 A treatment device for waste gas from modified asphalt production includes an electrostatic precipitator 100, a combustion assembly 200, an adsorption assembly 300, and a blower 400, wherein:

[0056] The outlet of the electrostatic dust removal component 100 is connected to the air inlet of the blower 400 via a connecting pipe 401. The outlet of the blower 400 is connected to the inlet of the combustion component 200 via a connecting pipe 402. The outlet of the combustion component 200 is connected to the inlet of the adsorption component 300. A blower 304 is installed at the outlet of the adsorption component 300.

[0057] During use, the waste gas generated during asphalt production passes through the electrostatic dust removal component 100, the combustion component 200, and the adsorption component 300 in sequence, undergoing electrostatic dust removal, combustion, and activated carbon adsorption treatment before being discharged. This triple treatment method effectively improves the environmental protection effect of the waste gas treatment.

[0058] I. Electrostatic dust removal assembly 100:

[0059] Reference Figures 2-5 The electrostatic dust removal assembly 100 includes an outer shell 101. Both open ends of the outer shell 101 are provided with shell covers. One shell cover has an input hole coaxially opened on its end face, and the other shell cover has an output hole coaxially opened on its end cover. An input pipe 102 is provided at the opening of the input hole, and an input nozzle 103 is provided on the outer circular surface of the input pipe 102. An output pipe 104 is provided at the opening of the output hole, and an output nozzle 105 is provided on the outer circular surface of the output pipe 104.

[0060] Multiple dust removal units are arranged in an array along their own axis inside the outer shell 101.

[0061] Furthermore, the dust removal unit includes an emitter 108, a dust collector 109, and a rotating shaft 113. The emitter 108 is located on the side of the dust collector 109 facing the input pipe 102. The emitter 108 is annular in shape and its outer ring surface is connected to the inner wall of the outer shell 101. The rotating shaft 113 is coaxial with the outer shell 101. The dust collector 109 is annular in shape and coaxially sleeved on the outside of the rotating shaft 113. There is a flow gap between the outer ring surface of the dust collector 109 and the inner wall of the outer shell 101 for the flow of exhaust gas.

[0062] It should be noted that the conductive connection method of the emitter 108 can be: simply provide a clearance hole on the outer shell 101 to avoid the wires conductively connected to the emitter 108; the conductive connection method of the dust collecting electrode 109 can be: the rotating shaft 113 is a hollow shaft, and its outer surface is also provided with a clearance hole to avoid the wires conductively connected to the dust collecting electrode 109. In addition, the rotating shaft 113 of the dust removal unit located on one side of the array direction is coaxially connected to the connecting shaft 107. The end of the connecting shaft 107 passes through the input pipe 102. The rotating shafts 113 of two adjacent dust removal units are connected by a power transmission component. The end of the rotating shaft 113 of the dust removal unit on the other side of the column direction is connected to the closed end of the output pipe 104. Along the array direction of the dust removal unit and from the input pipe 102 to the output pipe 104, the transmission ratio of the power transmission component increases, and the transmission ratio of the power transmission component is greater than one. That is, with the flow direction of the exhaust gas in the outer shell 101, the rotation speed of the rotating shaft 113 and the dust collecting electrode 109 decreases. After the wire used to realize the conductive connection of the dust collecting electrode 109 passes through all the rotating shafts 113 in sequence, it can be connected to the power supply through the through-hole slip ring technology. Therefore, a high voltage electric field can be formed between the emitter 108 and the dust collecting electrode 109.

[0063] The end of the connecting shaft 107 passes through the input pipe 102 and is connected to the first motor 106.

[0064] Reference Figure 2 , Figure 4 and Figure 5 The electrostatic dust removal assembly 100 also includes a cleaning component for cleaning oil stains from the dust collecting electrode 109.

[0065] The cleaning components include a storage box 110 and a cleaning unit, with a number of cleaning units corresponding to the number of dust collection electrodes 109.

[0066] Specifically, the cleaning unit includes an oil scraper box 115 and an annular seat 114 sleeved on the outside of the rotating shaft 113. There are two annular seats 114, which are located on both sides of the dust collection electrode 109 respectively, and the annular seats 114 are in contact with the dust collection electrode 109.

[0067] One end of the oil scraper box 115 is connected to the ring seat 114, and the other end extends out of the outer cylinder shell 101 and is connected to the storage box 110. The oil scraper box 115 is provided with a notch 116 for avoiding the dust collection electrode 109. The notch 116 extends to the end of the oil scraper box 115 connected to the ring seat 114.

[0068] There is a clearance between the upper opening of notch 116 and dust collection electrode 109 to avoid oil stains.

[0069] Each of the two holes along the width direction of the notch 116 is provided with a mounting groove 117. The mounting groove 117 extends through both sides along its own length direction to both ends of the oil scraper box 115 along its own length direction. An auger 118 is provided in the mounting groove 117.

[0070] The mounting slot 117 has a lower scraper that is inclined upwards on the lower side, and the ends of the two lower scrapers are respectively attached to the two end faces of the dust collection electrode 109.

[0071] Furthermore, an upper scraper 119 is provided at the opening of the mounting groove 117. The extension direction of the upper scraper 119 is parallel to the length direction of the oil scraper box 115, and the upper scraper 119 is close to the dust collection electrode 109.

[0072] Furthermore, refer to Figure 2 One end of the auger 118 passes through the storage box 110 and is connected to the second motor 111 via the power connector 112.

[0073] The working process of the electrostatic dust removal component 100 is as follows:

[0074] The exhaust gas enters the outer shell 101 through the inlet 103 and inlet pipe 102, then passes through the space between the emitter 108 and the rotating shaft 113 and enters the high-voltage electric field between the emitter 108 and the dust collecting electrode 109. After the exhaust gas comes into contact with the dust collecting electrode 109, it flows around along the end face of the dust collecting electrode 109 and enters the next high-voltage electric field through the flow gap between the dust collecting electrode 109 and the inner wall of the outer shell 101. When the exhaust gas is in the high-voltage electric field, particulate matter and oil stains in the exhaust gas will be adsorbed on the dust collecting electrode 109. In other words, multiple electrostatic dust removal treatments of the exhaust gas are achieved, resulting in better treatment effect. Furthermore, since the exhaust gas flows around along the end face of the dust collecting electrode 109 and enters the next high-voltage electric field through the flow gap, all parts of the end face of the dust collecting electrode 109 participate in the electrostatic dust removal treatment. That is, particulate matter and oil stains are evenly distributed on the end face of the dust collecting electrode 109, which indirectly improves the effect of a single electrostatic dust removal treatment.

[0075] The treated exhaust gas is discharged through the output pipe 104 and the output nozzle 105;

[0076] During electrostatic dust removal, the first motor 106 and the second motor 111 are started, causing the rotating shaft 113 and the auger 118 to rotate. The rotating shaft 113 rotates the dust collecting electrode 109 together, that is, the lower scraper and the upper scraper rod rotate relative to the dust collecting electrode 109. The lower scraper and the upper scraper rod can scrape off the oil on the dust collecting electrode 109, which falls into the oil scraping box 115 and is then pulled into the storage box 110 by the auger 118, thus achieving the cleaning treatment of the dust collecting electrode 109. Its technical advantages are:

[0077] 1. The temperature of asphalt exhaust gas is generally high. Under high temperature baking, the oil stains on the surface of the dust collection electrode 109 are easy to solidify. In this solution, the oil stains are first scraped off by the upper scraper and then scraped off by the lower scraper. The scraped-off oil stains are relatively thin. After contacting the rotating auger 118, they are easily crushed and pulled out into the storage box 110. Furthermore, the crushed oil stains are beneficial for the subsequent resource recovery of oil sludge.

[0078] 2. Since the dust collecting electrode 109 can continuously rotate during the treatment process, it can treat the exhaust gas and clean it at the same time, making the cleaning uninterrupted and continuous. Therefore, it can further improve the treatment effect of the dust collecting electrode 109 on the exhaust gas.

[0079] 3. In this solution, multiple electrostatic dust removal processes are adopted. Therefore, the more oil stains are on the dust collection electrode 109, the further forward it goes. Also, the faster the rotation speed of the dust collection electrode 109 goes, the more effective the cleaning of the dust collection electrode 109 can be achieved. The dust collection electrode 109 at the back will not be damaged by dry scraping.

[0080] It is important to note that "the further forward" refers to the earlier the part comes into contact with the exhaust gas, and "the further back" refers to the later the part comes into contact with the exhaust gas.

[0081] II. Combustion Assembly 200:

[0082] Reference Figure 1 The outlet nozzle 105 is connected to the connecting air tube 401.

[0083] Reference Figures 6-8 The combustion assembly 200 includes an outer stove shell 201. A heat storage ring 206 is coaxially sleeved inside the outer stove shell 201. A connecting ring is coaxially provided at the end of the heat storage ring 206. The end of the connecting ring passes through the end cap provided at the end of the outer stove shell 201 and is powered to a third motor 205. The third motor 205 can drive the heat storage ring 206 to rotate.

[0084] A semi-cylindrical body 207 in the shape of a semi-cylindrical body is coaxially arranged inside the heat storage ring 206. The semi-cylindrical body 207 is located below the axis of the heat storage ring 206, and the outer circular surface of the semi-cylindrical body 207 is in contact with the inner ring surface of the heat storage ring 206.

[0085] The interior of the semi-cylinder 207 is hollow and equipped with a partition 208. The partition 208 divides the bottom of the semi-cylinder 207 into two chambers, and the two chambers are connected by a connection port 209. Its technical advantage is that it improves the flow trajectory of exhaust gas in the semi-cylinder 207, thereby increasing the residence time of exhaust gas.

[0086] The end cap is provided with an air inlet 202 and an exhaust nozzle 203. The air inlet 202 is connected to one chamber of the semi-cylinder 207. The upper surface of the other chamber of the semi-cylinder 207 is provided with an exhaust pipe 210. The exhaust nozzle 203 is connected to the space above the semi-cylinder 207. The end of the exhaust nozzle 203 is provided with an exhaust pipe 204.

[0087] A combustion unit is provided in the space above the semi-cylinder 207. Furthermore, the combustion unit includes a combustion main pipe 211. A combustion branch pipe 212 is provided at the highest point of the outer circular surface of the combustion main pipe 211, and a connection hole 213 communicating with the combustion branch pipe 212 is provided on the outer circular surface of the combustion main pipe 211. Multiple combustion branch pipes 212 are arranged in an array along the axis of the combustion main pipe 211. The combustion main pipe 211 is connected to the end of the exhaust pipe 210.

[0088] The combustion main pipe 211 contains an auxiliary main pipe 214. Both ends of the auxiliary main pipe 214 extend out of the outer stove shell 201. One end is used to receive oxygen or air, and the other end is used to receive gas. An installation hole is provided at the highest point of the outer circular surface of the auxiliary main pipe 214. An auxiliary branch pipe 215 is provided at the upper opening of the installation hole. The upper end of the auxiliary branch pipe 215 extends into the combustion branch pipe 212. Several side holes 216 are provided on the part of the auxiliary branch pipe 215 located inside the combustion branch pipe 212.

[0089] The working process of the combustion component 200 is as follows:

[0090] First, during startup, exhaust gas enters combustion branch pipe 212 through connecting pipe 1 401, connecting pipe 2 402, air inlet 202, the chamber of semi-cylinder 207, exhaust pipe 210, and combustion main pipe 211. At the same time, oxygen and fuel gas enter combustion branch pipe 212 through auxiliary main pipe 214 and auxiliary branch pipe 215. Ignition is carried out using existing technology to achieve combustion treatment of exhaust gas.

[0091] After the preset time, the gas supply is stopped, and oxygen continues to enter the combustion pipe 212. At the same time, the heat storage ring 206 rotates to preheat the semi-cylinder 207, which increases the pressure inside the semi-cylinder 207. The high temperature and high pressure can promote the complete combustion of the exhaust gas, and the complete combustion will further promote the heat storage of the heat storage ring 206, thereby further promoting the preheating of the semi-cylinder 207. This forms a positive feedback loop, enabling the exhaust gas to be fully combusted.

[0092] It should be noted that if the concentration of flammable components in the exhaust gas is low, then an igniter can be added to aid combustion.

[0093] III. Adsorption Component 300:

[0094] Reference Figure 9The adsorption component 300 includes an adsorption tank 301 and a blower 304. The adsorption tank 301 contains activated carbon.

[0095] The exhaust pipe 204 is provided with a pipe 302 at its end, and the end of the pipe 302 extends into the adsorption tank 301 and is close to the top of the tank.

[0096] The air inlet of blower 2 304 is provided with pipe 2 303, and the end of pipe 2 303 extends into adsorption tank 301 and is close to the bottom of the tank.

[0097] The working process of the adsorption component 300 is as follows:

[0098] The exhaust gas after combustion enters the adsorption tank 301 through the exhaust pipe 204 and pipe 302. After being adsorbed by activated carbon, it is discharged through pipe 303.

[0099] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A treatment device for waste gas from modified asphalt production, comprising an electrostatic precipitator (100), a combustion assembly (200), an adsorption assembly (300), and a blower (400), characterized in that, The outlet of the electrostatic dust removal component (100) is connected to the air inlet of the blower (400) through a connecting pipe (401), the outlet of the blower (400) is connected to the inlet of the combustion component (200) through a connecting pipe (402), the outlet of the combustion component (200) is connected to the inlet of the adsorption component (300), and a blower (304) is provided at the outlet of the adsorption component (300). The electrostatic dust removal assembly (100) includes an outer shell (101), and both open ends of the outer shell (101) are provided with shell covers. One shell cover has an input hole and the other shell cover has an output hole. Multiple dust removal units are arranged in an array inside the outer shell (101) along its own axis. The dust removal unit includes an emitter (108), a dust collection electrode (109), and a rotating shaft (113). The emitter (108) is located on the side of the dust collection electrode (109) facing the input pipe (102). The emitter (108) is in the shape of a ring and its outer ring surface is connected to the inner wall of the outer shell (101). The rotating shaft (113) is coaxial with the outer shell (101). The dust collection electrode (109) is in the shape of a ring and is sleeved on the outside of the rotating shaft (113). There is a flow gap between the outer ring surface of the dust collection electrode (109) and the inner wall of the outer shell (101) for the flow of exhaust gas.

2. The equipment for treating waste gas from modified asphalt production according to claim 1, characterized in that, The electrostatic dust removal assembly (100) also includes a storage box (110) and a cleaning unit, with a number of cleaning units corresponding to the number of dust collection electrodes (109); The cleaning unit includes an oil scraper box (115) and an annular seat (114) sleeved on the outside of the rotating shaft (113). There are two annular seats (114) and they are located on both sides of the dust collection electrode (109). The annular seat (114) is in contact with the dust collection electrode (109). One end of the oil scraper box (115) is connected to the ring seat (114), and the other end extends out of the outer cylinder shell (101) and is connected to the storage box (110). The oil scraper box (115) is provided with a notch (116) for avoiding the dust collection electrode (109). The notch (116) extends to the end of the oil scraper box (115) connected to the ring seat (114). There is a clearance between the upper opening of the notch (116) and the dust collection electrode (109) for avoiding oil stains. The notch (116) has a mounting groove (117) on each of its two holes along the width direction. The mounting groove (117) extends through both sides along its own length direction to both ends of the oil scraper box (115) along its own length direction. An auger (118) is installed in the mounting groove (117).

3. The equipment for treating waste gas from modified asphalt production according to claim 2, characterized in that, The lower side of the mounting groove (117) is inclined upward and a lower scraper is provided. The ends of the two lower scrapers are respectively attached to the two end faces of the dust collection electrode (109). An upper scraper (119) is provided at the opening of the mounting slot (117). The extension direction of the upper scraper (119) is parallel to the length direction of the oil scraper box (115), and the upper scraper (119) is close to the dust collection electrode (109).

4. The equipment for treating waste gas from modified asphalt production according to claim 2, characterized in that, One end of the auger (118) passes through the storage box (110) and then forms a power connection with the second motor (111) through the power connector (112).

5. The equipment for treating waste gas from modified asphalt production according to claim 3, characterized in that, The rotating shaft (113) of the dust removal unit located on one side of the array direction is coaxially connected to the connecting shaft (107). The end of the connecting shaft (107) passes through the input pipe (102) and is powered to the first motor (106). The rotating shafts (113) of two adjacent dust removal units are connected by a power transmission component. The transmission ratio of the power transmission component increases along the array direction of the dust removal unit and from the input pipe (102) to the output pipe (104). The transmission ratio of all power transmission components is greater than one.

6. The equipment for treating waste gas from modified asphalt production according to claim 5, characterized in that, An input tube (102) is provided at the opening of the input hole, and an input nozzle (103) is provided on the outer circular surface of the input tube (102). An output tube (104) is provided at the opening of the output hole, and an output nozzle (105) is provided on the outer circular surface of the output tube (104). The output nozzle (105) is connected to the connecting air pipe (401).

7. The equipment for treating waste gas from modified asphalt production according to claim 5, characterized in that, The combustion assembly (200) includes an outer stove shell (201), a heat storage ring (206) is coaxially sleeved inside the outer stove shell (201), a connecting ring is coaxially provided at the end of the heat storage ring (206), and the end of the connecting ring passes through the end cap provided at the end of the outer stove shell (201) and is poweredly connected to a third motor (205). A semi-cylindrical body (207) in the shape of a semi-cylindrical body is coaxially arranged inside the heat storage ring (206). The semi-cylindrical body (207) is located below the axis of the heat storage ring (206), and the outer circular surface of the semi-cylindrical body (207) is in contact with the inner ring surface of the heat storage ring (206). The interior of the semi-cylinder (207) is hollow and is provided with a partition (208). The partition (208) divides the bottom of the semi-cylinder (207) into two chambers and the two chambers are connected by a connection port (209). An air inlet (202) and an air outlet (203) are provided on the end cap. The air inlet (202) is connected to one chamber of the semi-cylinder (207). An exhaust pipe (210) is provided on the upper surface of the other chamber of the semi-cylinder (207). The air outlet (203) is connected to the space above the semi-cylinder (207). An exhaust pipe (204) is provided at the end of the air outlet (203).

8. The equipment for treating waste gas from modified asphalt production according to claim 7, characterized in that, A combustion main pipe (211) connected to the exhaust pipe (210) is provided in the space above the semi-cylinder (207). A combustion branch pipe (212) is provided on the outer circular surface of the combustion main pipe (211) and the two are connected through a connecting hole (213). Multiple combustion branch pipes (212) are arranged in an array along the axis of the combustion main pipe (211). The combustion main pipe (211) is connected to the exhaust pipe (210). An auxiliary main pipe (214) is located inside the combustion main pipe (211). Both ends of the auxiliary main pipe (214) extend out of the outer stove shell (201). One end of the auxiliary main pipe (214) is used to receive oxygen and the other end is used to receive gas. The outer circular surface of the auxiliary main pipe (214) is provided with an installation hole. An auxiliary branch pipe (215) is provided at the upper opening of the installation hole. The upper end of the auxiliary branch pipe (215) extends into the combustion branch pipe (212). The part of the auxiliary branch pipe (215) located inside the combustion branch pipe (212) is provided with several side holes (216).

9. The equipment for treating waste gas from modified asphalt production according to claim 8, characterized in that, The adsorption assembly (300) includes an adsorption tank (301) containing activated carbon, a first pipe (302) is provided at the end of the exhaust pipe (204), the end of the first pipe (302) extends into the adsorption tank (301) and is close to the top of the tank, and a second pipe (303) is provided at the air inlet end of the blower (304), the end of the second pipe (303) extends into the adsorption tank (301) and is close to the bottom of the tank.

10. The method of using the modified asphalt production waste gas treatment equipment as described in claim 8, characterized in that, The steps are as follows: Step 1: The exhaust gas enters the outer shell (101) through the inlet hole, then passes through the space between the emitter (108) and the rotating shaft (113) and enters the high-voltage electric field between the emitter (108) and the dust collector (109). After the exhaust gas comes into contact with the dust collector (109), it flows around along the end face of the dust collector (109) and enters the next high-voltage electric field through the flow gap between the dust collector (109) and the inner wall of the outer shell (101). The dust collector (109) adsorbs particulate matter and oil stains in the exhaust gas. At the same time, the rotating shaft (113) rotates together with the dust collection electrode (109). The oil stains on the dust collection electrode (109) can be scraped off by the lower scraper and the upper scraper and fall into the oil scraper box (115). The oil is then pulled into the storage box (110) by the auger (118), thus achieving the cleaning treatment of the dust collection electrode (109). Step 2: The treated exhaust gas enters the combustion branch pipe (212) through the output hole, connecting pipe 1 (401), connecting pipe 2 (402), air inlet (202), the chamber of the semi-cylinder (207), exhaust pipe (210), and combustion main pipe (211). At the same time, oxygen and fuel gas enter the combustion branch pipe (212) through the auxiliary main pipe (214) and auxiliary branch pipe (215) to ignite and achieve combustion treatment of the exhaust gas. Step 3: After the preset time, the gas is turned off, and the oxygen continues to enter the combustion pipe (212). At the same time, the heat storage ring (206) rotates to preheat the semi-cylinder (207). Step 4: The exhaust gas after combustion enters the adsorption component (300), undergoes activated carbon adsorption, and is then discharged.

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