Flue gas purification treatment device for asphalt production
Through a multi-stage treatment process, including cooling, electrostatic dust removal, and catalytic adsorption, the problems of low efficiency and high cost in traditional asphalt fume purification have been solved, achieving efficient and low-cost fume purification.
Patent Information
- Application Number
- CN202510949753.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-10
- Publication Date
- 2025-11-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Traditional asphalt fume purification treatment is inefficient, costly, and ineffective in removing VOCs and ultrafine particles. Furthermore, the filter material is easily clogged by tar, which may cause secondary pollution.
A multi-stage treatment process is adopted, including a cooling tower, an electrostatic precipitator, an adsorption purification box, and a catalyst layer. High-boiling-point organic matter, particulate matter, and trace VOCs in flue gas are removed through refrigerant cooling, electrostatic precipitator, plasma catalysis, and molecular sieve adsorption.
It improves flue gas purification efficiency, reduces raw material consumption and energy consumption, achieves self-cleaning effect, and reduces equipment wear and the risk of secondary pollution.
Smart Images
Figure CN120885336A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of flue gas purification equipment, in particular to a flue gas purification treatment device for asphalt production. BACKGROUND
[0002] In the production process of asphalt, especially in high-temperature operation (such as mixture preparation, modified asphalt processing), volatile organic compounds (VOCs), asphalt tar, polycyclic aromatic hydrocarbons (PAHs), sulfides and particulate matter in raw materials will volatilize to form flue gas. These flue gas components are complex: benzene series, PAHs (some of which are carcinogenic), sulfur oxides (SOx), nitrogen oxides (NOx) and fine particulate matter (PM2.5 / PM10), high temperature, high viscosity (tar is easy to adhere to equipment), and may contain corrosive gases. The asphalt flue gas purification device is a key link to realize green production, and a multi-stage treatment process needs to be selected according to the characteristics of the flue gas. Future technology will tend to be efficient, resourceful and intelligent to balance environmental protection needs and economic feasibility.
[0003] However, the traditional asphalt flue gas has low cooling efficiency, high cost and can only remove large particles during the purification process. The efficiency of VOCs and ultra-fine particles (PM2.5) is low, the filter material is easy to be blocked by tar, the energy consumption is high, high temperature is required, and secondary pollutants may be generated. SUMMARY
[0004] To achieve the above purpose, the present application is realized by the following technical scheme: a flue gas purification treatment device for asphalt production, comprising a workbench, a cooling treatment tower is fixedly connected to the top of the workbench, a refrigerant tank is fixedly connected to the top of the workbench on the side of the cooling treatment tower, a water inlet of a high-pressure water pump is communicated with one side of the refrigerant tank, a water outlet of the high-pressure water pump is communicated with a water pipe, one end of the water pipe away from the high-pressure water pump is communicated with the cooling treatment tower, a first air inlet of a first air blower is communicated with one side of the cooling treatment tower, a first flue gas transmission pipe is communicated with an air outlet of the first air blower, one end of the first flue gas transmission pipe is communicated with an electrostatic precipitator, a second flue gas transmission pipe is communicated with a side of the electrostatic precipitator away from the first air blower, an adsorption purification tank is communicated with one end of the second flue gas transmission pipe away from the electrostatic precipitator, the electrostatic precipitator is fixedly connected to the top of the workbench, and the adsorption purification tank is fixedly connected to the top of the workbench.
[0005] Preferably, the cooling treatment tower comprises a protective shell, a flue gas inlet pipe is communicated to the bottom of the side of the protective shell, a cooling device is fixedly connected to the top of the protective shell, a recovery box is fixedly connected to the bottom of the protective shell, a support is fixedly connected to the inner wall of the bottom of the recovery box, a spiral plate is fixedly connected to the inner wall of the protective shell, a spiral conveyor belt is rotatably connected to one side of the spiral plate, a circular mesh is formed in the top of the spiral conveyor belt, a first rotating roller and a second rotating roller are rotatably connected to the top and the bottom of the spiral plate respectively, one end of the first rotating roller and the second rotating roller is rotatably connected to the support, the end of the second rotating roller away from the support penetrates through the protective shell and is fixedly connected with the drive shaft of a rotary motor, the first rotating roller and the second rotating roller are rotatably connected with the output end and the input end of the spiral conveyor belt respectively, the recovery box is fixedly connected to the top of the workbench, and the rotary motor is fixedly connected to the top of the workbench.
[0006] Preferably, the cooling device comprises a connecting pipe, a cross hollow pipe is communicated to the bottom of the connecting pipe, an output end of a belt drive mechanism is fixedly connected to the side of the cross hollow pipe, an input end of a cooling motor is fixedly connected with the drive shaft of the belt drive mechanism, a water outlet pipe is communicated to the bottom of the cross hollow pipe, a plurality of groups of the water outlet pipes are arranged on the bottom of the cross hollow pipe and are uniformly distributed, the connecting pipe penetrates through the protective shell and is rotatably connected with the protective shell, the cooling motor is fixedly connected to the top of the protective shell, and the part of the connecting pipe close to the cooling motor is communicated with the water pipe. High-boiling-point organic matters in flue gas are condensed from gas state to liquid state tar, and subsequent purification and utilization are carried out, thereby reducing raw material consumption and subsequent load.
[0007] Preferably, the electrostatic dust removal device comprises a dust removal box body, a first high-voltage power supply is fixedly connected to one side of the dust removal box body, a honeycomb-shaped ionization plate is fixedly connected to one side of the inner wall of the dust removal box body, a honeycomb-shaped dust collection plate is fixedly connected to the side of the inner wall of the dust removal box body away from the honeycomb-shaped ionization plate, an ultrasonic flaw detector is fixedly connected to one side of the dust removal box body, a piezoelectric wafer is fixedly connected to one side of the honeycomb-shaped dust collection plate, the piezoelectric wafer penetrates through the dust removal box body and is fixedly connected with the ultrasonic flaw detector, the dust removal box body is fixedly connected to the top of the workbench, the dust removal box body penetrates through and is communicated with the first flue gas transmission pipe on one side, and the dust removal box body penetrates through and is communicated with the second flue gas transmission pipe on the side away from the first flue gas transmission pipe, thereby realizing self-cleaning effect, improving work efficiency and removing PM2.5, charged VOCs and other particles in flue gas, which can reduce the abrasion of particulate matters on subsequent plasma catalyst.
[0008] Preferably, the adsorption purification box comprises a catalytic layer, an adsorption layer is fixedly connected to the top of the catalytic layer, a purification gas outlet chimney penetrates through and is communicated with the top of the adsorption layer, and the catalytic layer is fixedly connected to the workbench.
[0009] Preferably, the catalytic layer comprises a catalytic box, one side of the catalytic box is provided with a flue gas concentration detector penetrating and fixedly connected, both sides of the catalytic box are fixedly connected with a second high-voltage power supply, the second high-voltage power supply penetrates the catalytic box and is electrically connected with a discharge wire, the inner wall of the catalytic box is fixedly connected with a first reaction box, a second reaction box and a third reaction box above the discharge wire, the top of the first reaction box, the second reaction box and the third reaction box is rotatably connected with a first rotating plate, a second rotating plate and a third rotating plate respectively, the bottom of the first reaction box, the second reaction box and the third reaction box is rotatably connected with a fourth rotating plate, a fifth rotating plate and a sixth rotating plate respectively, the inner wall of the catalytic box is fixedly connected with an oxygen content detector above the first reaction box, the side of the catalytic box is fixedly connected with an alarm on the side of the oxygen content detector, the side of the catalytic box is communicated with an inert gas conveying pipe above the first reaction box, the part of the inert gas conveying pipe in the catalytic box is fixedly connected with the oxygen content detector, the end of the inert gas conveying pipe away from the catalytic box is communicated with the air outlet of a second induced draft fan, the air inlet of the second induced draft fan is communicated with a gas storage tank, the gas storage tank is fixedly connected to the side of the catalytic box, and the catalytic box is fixedly connected to the top of a workbench.
[0010] Preferably, the adsorption layer comprises an adsorption box, one side of the inner wall of the adsorption box is rotatably connected with an adsorption roller, one end of the adsorption roller is fixedly connected with a driving shaft of a driving motor, the driving motor is fixedly connected to the side of the adsorption box, the adsorption roller is filled with a molecular sieve adsorbent, the side of the adsorption roller is provided with a gas guide hole, the bottom of the inner wall of the adsorption box is provided with a gas guide groove below the adsorption roller, and the bottom of the adsorption box is communicated with the catalytic box.
[0011] The application provides a flue gas purification treatment device for asphalt production. 1. The flue gas purification treatment device for asphalt production, when in use, the flue gas generated after the production of asphalt enters the protective shell from the flue gas inlet pipe, the rotating motor is started, the driving shaft of the rotating motor rotates the second rotating roller, the rotation of the second rotating roller drives the spiral conveyor belt to rotate along the spiral plate, the rotation of the spiral conveyor belt drives the circular mesh to rotate, at the same time, the high-pressure water pump and the cooling motor also start to work, the driving shaft of the cooling motor rotates to drive the input end of the belt drive mechanism to rotate, the input end of the belt drive mechanism rotates to drive the output end to rotate, the output end of the belt drive mechanism rotates to drive the connecting pipe to rotate, the connecting pipe rotates to drive the cross hollow pipe to rotate, the cross hollow pipe rotates to drive the water outlet pipe to rotate, so that the refrigerant can be uniformly sprayed on the spiral conveyor belt, the high-pressure water pump sends the refrigerant in the refrigerant tank into the cross hollow pipe from the bottom to the top through the water pipe, and finally the refrigerant is sprayed down from the water outlet pipe. The relative flow rate of the refrigerant and the circular mesh is greater under the driving action of the spiral conveyor belt, and it is easier to form a water film. The flue gas enters the tower body from the tower bottom, is filtered layer by layer by the water film formed on the circular mesh, and forms gas-liquid countercurrent flow with the water film under the action of air, so that the flue gas is fully cooled, thereby improving the working efficiency. Through rapid cooling, high-boiling-point organic matter (such as tar and asphaltene) in the flue gas undergoes phase change and condenses from gas to liquid tar, and finally falls into the tower bottom recovery tank. Subsequent purification and utilization can be carried out, thereby reducing raw material consumption and subsequent load 2. The flue gas purification treatment device for asphalt production, when in use, the flue gas cooled by the cooling treatment tower is transmitted into the dust removal tank by the first flue gas transmission pipe through the first induced draft fan to remove PM, charged VOCs and other particles by electrostatic removal. The first high-voltage power supply is turned on, the first high-voltage power supply supplies positive charges to the honeycomb ionization plate and negative charges to the honeycomb dust collection plate. The PM, charged VOCs and other particles in the flue gas passing through the honeycomb ionization plate are positively charged under the ionization of the honeycomb ionization plate. When passing through the honeycomb dust collection plate, the positively charged PM, charged VOCs and other particles are adsorbed on the honeycomb dust collection plate under the negative charge attraction of the honeycomb dust collection plate. Then the ultrasonic flaw detector is turned on. The ultrasonic flaw detector generates high-frequency voltage and applies it to the two electrodes of the piezoelectric wafer. The piezoelectric wafer generates mechanical vibration through the inverse piezoelectric effect, so that the particles adsorbed on the honeycomb dust collection plate can be vibrated and cleaned, realizing self-cleaning effect and improving working efficiency. The honeycomb structure of the honeycomb ionization plate increases the surface area of the ionization plate, so that more gas molecules can collide with ions in the electric field, thereby improving the ionization efficiency. By removing PM, charged VOCs and other particles in the flue gas, the wear of the subsequent plasma catalyst by particulate matter can be reduced.
[0012] 3. The asphalt production flue gas purification treatment device, in use, the flue gas treated by the electrostatic precipitator is transmitted into the catalytic box inside the adsorption purification box through the second flue gas transmission pipe, the second high-voltage power supply is started, and the discharge wire starts to discharge. The flue gas passes through high-energy electron bombardment to generate non-equilibrium plasma to break the chemical bonds of organic matter. After the flue gas concentration is detected by the flue gas concentration detector, the first reaction box, the second reaction box and the third reaction box storing different concentrations of plasma catalysts are opened according to the flue gas concentration, and the rotating plate at the bottom of the corresponding reaction box is opened to carry out catalytic reaction. When the reaction is complete, the rotating plate at the top of the corresponding reaction box is opened, thereby ending the catalytic reaction. Under the catalytic reaction of the plasma catalyst, the macromolecular organic matter is decomposed, and the molecular sieve load is reduced. Oxygen is generated in the catalytic reaction, and explosion may occur under the action of discharge. Therefore, the oxygen content detector is arranged. When the oxygen content is high, the second induced draft fan is opened to convey the inert gas in the gas storage tank into the catalytic box through the inert gas conveying pipe, thereby avoiding explosion caused by too high oxygen concentration.
[0013] 4. The asphalt production flue gas purification treatment device, in use, the flue gas after the catalytic reaction enters the adsorption drum inside through the gas guide groove at the bottom of the adsorption box. The driving motor is started, the driving shaft of the driving motor is rotated to drive the adsorption drum to rotate, the adsorption drum is rotated to drive the molecular sieve adsorbent to rotate, the molecular sieve adsorbent is scattered under the action of rotation, the flue gas can be more fully contacted and adsorbed with the molecular sieve adsorbent, thereby the contact area of the molecular sieve adsorbent and the flue gas can be increased, and the adsorption efficiency can be improved. Under the adsorption action of the molecular sieve adsorbent, trace VOCs and malodorous gas in the flue gas are removed, and finally the emission standard can be reached. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structure schematic view of the asphalt production flue gas purification treatment device of the present application. Figure 2 It is an internal structure schematic view of the cooling treatment tower of the present application. Figure 3 It is an internal structure schematic view of one side of the cooling treatment tower of the present application. Figure 4 It is a connection structure schematic view of the cooling treatment tower of the present application. Figure 5 It is a structure schematic view of the cooling device of the present application. Figure 6 It is a structure schematic view of the electrostatic precipitator of the present application. Figure 7 It is an internal structure schematic view of the electrostatic precipitator of the present application. Figure 8 It is a structure schematic view of the adsorption purification box of the present application. Figure 9The back structure schematic diagram of the adsorption purification box of the application; Figure 10 The internal structure schematic diagram of the catalytic layer of the application; Figure 11 The internal structure schematic diagram of the adsorption layer of the application; Figure 12 The internal structure schematic diagram of the adsorption box of the application; In the figure: 1, workbench; 2, cooling treatment tower; 3, refrigerant tank; 4, high-pressure water pump; 5, water pipe; 6, first induced draft fan; 7, first flue gas transmission pipe; 8, electrostatic precipitator; 9, adsorption purification box; 10, second flue gas transmission pipe; 21, support; 22, spiral plate; 23, spiral conveyor belt; 24, circular mesh; 25, recovery tank; 26, protective shell; 27, flue gas inlet pipe; 28, rotary motor; 29, cooling device; 210, first rotating roller; 211, second rotating roller; 291, cross hollow pipe; 292, water outlet pipe; 293, cooling motor; 294, connecting pipe; 295, belt drive mechanism; 81, dust removal box; 82, first high-voltage power supply; 83, honeycomb ionization plate; 84, honeycomb dust collection plate; 85, ultrasonic flaw detector; 86, piezoelectric wafer; 91, catalytic layer; 92, adsorption layer; 93, purified gas outlet chimney; 911, catalytic box; 912, flue gas concentration detector; 913, second high-voltage power supply; 914, discharge wire; 915, first reaction box; 916, second reaction box; 917, third reaction box; 918, first rotating plate; 919, second rotating plate; 9110, third rotating plate; 9111, oxygen content detector; 9112, alarm; 9113, inert gas delivery pipe; 9114, second induced draft fan; 9115, gas storage tank; 9116, fourth rotating plate; 9117, fifth rotating plate; 9118, sixth rotating plate; 921, adsorption box; 922, adsorption roller; 923, drive motor; 924, molecular sieve adsorbent; 925, air guide hole; 926, air guide groove. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.
[0016] Please refer to Figures 1-5The application provides a technical scheme: an asphalt production flue gas purification treatment device, a cooling treatment tower 2 includes a protective shell 26, the protective shell 26 side bottom is communicated with a flue gas inlet pipe 27, the protective shell 26 top is fixedly connected with a cooling device 29, the protective shell 26 bottom is fixedly connected with a recovery tank 25, the recovery tank 25 inner wall bottom is fixedly connected with a support 21, the protective shell 26 inner wall is fixedly connected with a spiral plate 22, the spiral plate 22 one side is rotatably connected with a spiral conveyor belt 23, the spiral conveyor belt 23 top is provided with a circular mesh 24, and the top and bottom of the spiral plate 22 are rotatably connected with a first rotating roller 210 and a second rotating roller 211 respectively, one end of the first rotating roller 210 and the second rotating roller 211 is rotatably connected with the support 21, and the second rotating roller 211 end away from the support 21 penetrates the protective shell 26 and is fixedly connected with the driving shaft of a rotary motor 28; the first rotating roller 210 and the second rotating roller 211 are rotatably connected with the output end and the input end of the spiral conveyor belt 23 respectively, the recovery tank 25 is fixedly connected on the top of the workbench 1, the rotary motor 28 is fixedly connected on the top of the workbench 1, the cooling device 29 includes a connecting pipe 294, the connecting pipe 294 bottom is communicated with a cross hollow pipe 291, the cross hollow pipe 291 side is fixedly connected with the output end of a belt drive mechanism 295, the input end of the belt drive mechanism 295 is fixedly connected with the driving shaft of a cooling motor 293, the cross hollow pipe 291 bottom is communicated with a water outlet pipe 292, the water outlet pipe 292 is provided with multiple groups and is evenly distributed on the cross hollow pipe 291 bottom, the connecting pipe 294 penetrates the protective shell 26 and is rotatably connected with the protective shell 26, the cooling motor 293 is fixedly connected on the top of the protective shell 26, and the part of the connecting pipe 294 side close to the cooling motor 293 is communicated with the water pipe 5.
[0017] In use, the flue gas generated after the production of asphalt enters the protective shell 26 from the flue gas inlet pipe 27, the rotating motor 28 is started, the driving shaft of the rotating motor 28 rotates the second rotating roller 211, the second rotating roller 211 rotates the spiral conveying belt 23 along the spiral plate 22, the spiral conveying belt 23 rotates the circular mesh 24, at the same time, the high-pressure water pump 4 and the cooling motor 293 also start to work, the driving shaft of the cooling motor 293 rotates to drive the input end of the belt transmission mechanism 295 to rotate, the input end of the belt transmission mechanism 295 rotates to drive the output end to rotate, the output end of the belt transmission mechanism 295 rotates to drive the connecting pipe 294 to rotate, the connecting pipe 294 rotates to drive the cross hollow pipe 291 to rotate, the cross hollow pipe 291 rotates to drive the water outlet pipe 292 to rotate, so that the refrigerant can be uniformly sprayed on the spiral conveying belt, the high-pressure water pump 4 sends the refrigerant in the refrigerant tank 3 into the cross hollow pipe 291 from the water pipe 5 from bottom to top, and finally sprays down from the water outlet pipe 292, the relative flow rate of the refrigerant and the circular mesh 24 is greater under the driving action of the spiral conveying belt 23, and the water film is more easily formed, the flue gas enters the tower body from the tower bottom, is filtered layer by layer through the water film formed on the circular mesh 24, and air flow is formed with the water film under the action of air, so that the flue gas is fully cooled, thereby improving the working efficiency, through rapid cooling, high-boiling-point organic matters (such as tar and asphaltene) in the flue gas are phase changed from gaseous state to liquid state tar, and finally fall into the tower bottom recovery tank 25, and subsequent purification and utilization can be carried out, thereby reducing raw material consumption and subsequent load.
[0018] Please refer to Figures 1-7 The application provides a technical scheme: the electrostatic dust removal device 8 comprises a dust removal box body 81, a first high-voltage power supply 82 is fixedly connected to one side of the dust removal box body 81, a honeycomb-shaped ionization plate 83 is fixedly connected to one side of the inner wall of the dust removal box body 81, a honeycomb-shaped dust collection plate 84 is fixedly connected to the side, away from the honeycomb-shaped ionization plate 83, of the inner wall of the dust removal box body 81, an ultrasonic flaw detector 85 is fixedly connected to one side of the dust removal box body 81, a piezoelectric wafer 86 is fixedly connected to one side of the honeycomb-shaped dust collection plate 84, the piezoelectric wafer 86 penetrates through the dust removal box body 81 and is fixedly connected with the ultrasonic flaw detector 85, the dust removal box body 81 is fixedly connected to the top of the workbench 1, the dust removal box body 81 penetrates through one side and is in communication with the first flue gas transmission pipe 7, and the side, away from the first flue gas transmission pipe 7, of the dust removal box body 81 penetrates through and is in communication with the second flue gas transmission pipe 10.
[0019] In use, the flue gas cooled by the cooling treatment tower 2 is transmitted into the dust removal box 81 by the first flue gas transmission pipe 7 through the first induced draft fan 6 to remove particles such as PM2.5 and charged VOCs by electrostatic removal. The first high-voltage power supply 82 is opened, the first high-voltage power supply 82 passes positive charges to the honeycomb ionization plate 83, and passes negative charges to the honeycomb dust collection plate 84. The PM2.5 and charged VOCs in the flue gas passing through the honeycomb ionization plate 83 are positively charged under the ionization of the honeycomb ionization plate 83, and when passing through the honeycomb dust collection plate 84, the positively charged PM2.5 and charged VOCs are adsorbed on the honeycomb dust collection plate 84 under the negative charge attraction of the honeycomb dust collection plate 84. Then the ultrasonic flaw detector 85 is opened, the ultrasonic flaw detector 85 generates high-frequency voltage and adds it to the two electrodes of the piezoelectric wafer 86, uses the inverse piezoelectric effect to make the piezoelectric wafer 86 vibrate mechanically, so that the particles adsorbed on the honeycomb dust collection plate 84 can be vibrated and cleaned, realizing self-cleaning effect and improving work efficiency. The honeycomb structure of the honeycomb ionization plate 83 in the flue gas increases the surface area of the ionization plate, so that more gas molecules can collide with ions in the electric field, thereby improving the ionization efficiency. By removing PM2.5, charged VOCs and other particles in the flue gas, the wear and tear of the subsequent plasma catalyst by particles can be reduced.
[0020] Please refer to Figures 1-10The present invention provides a technical solution: an adsorption purification box 9 includes a catalyst layer 91, an adsorption layer 92 fixedly connected to the top of the catalyst layer 91, a purified gas outlet chimney 93 connected to the top of the adsorption layer 92, the catalyst layer 91 fixedly connected to a workbench 1, the catalyst layer 91 includes a catalyst box body 911, a flue gas concentration detector 912 is fixedly connected through and on one side of the catalyst box body 911, a second high-voltage power supply 913 is fixedly connected to both sides of the catalyst box body 911, the second high-voltage power supply 913 passes through the catalyst box body 911 and is electrically connected to a discharge wire 914, a first reaction box 915, a second reaction box 916, and a third reaction box 917 are fixedly connected to the inner wall of the catalyst box body 911 above the discharge wire 914, and the tops of the first reaction box 915, the second reaction box 916, and the third reaction box 917 are rotatably connected to the tops of the first reaction box 915, the second reaction box 916, and the third reaction box 917, respectively. 110. The bottoms of the first reaction chamber 915, the second reaction chamber 916, and the third reaction chamber 917 are respectively rotatably connected to the fourth rotating plate 9116, the fifth rotating plate 9117, and the sixth rotating plate 9118. An oxygen content detector 9111 is fixedly connected to one side of the inner wall of the catalyst chamber 911 above the first reaction chamber 915. An alarm 9112 is fixedly connected to the side of the catalyst chamber 911 next to the oxygen content detector 9111. An inert gas delivery pipe 9113 is connected to the side of the catalyst chamber 911 above the first reaction chamber 915. The end of the inert gas delivery pipe 9113 away from the catalyst chamber 911 is connected to the outlet of the second induced draft fan 9114. The inlet of the second induced draft fan 9114 is connected to the gas storage tank 9115. The gas storage tank 9115 is fixedly connected to the side of the catalyst chamber 911. The catalyst chamber 911 is fixedly connected to the top of the workbench 1.
[0021] In use, the flue gas treated by the electrostatic precipitator 8 is transmitted through the second flue gas transmission pipe 10 into the catalyst chamber 911 inside the adsorption purification box 9. The second high-voltage power supply 913 is activated, and the discharge wire 914 begins to discharge. The flue gas is bombarded by high-energy electrons to generate non-equilibrium plasma, which can break the chemical bonds of organic matter. After the flue gas concentration is detected by the flue gas concentration detector 912, the first reaction chamber 915, the second reaction chamber 916, and the third reaction chamber 917, which contain plasma catalysts of different concentrations, are opened according to the flue gas concentration. At the same time, the rotating plates at the bottom of the corresponding reaction chambers are opened. The catalytic reaction proceeds. Once the reaction is complete, the rotating plate on top of the corresponding reaction chamber opens, thus ending the catalytic reaction. Under the catalytic reaction of the plasma catalyst, macromolecular organic matter is decomposed, reducing the load on the molecular sieve. Since the catalytic reaction produces oxygen, which may explode under the action of discharge, an oxygen content detector 9111 is installed. When the oxygen content is high, the second induced draft fan 9114 opens to transport the inert gas in the gas storage tank 9115 to the inside of the catalytic chamber 911 through the inert gas delivery pipe 9113, thereby avoiding an explosion caused by excessive oxygen concentration.
[0022] Please refer to Figures 1-12 The application provides a technical scheme: the adsorption layer 92 comprises an adsorption box body 921, a rotating shaft is connected to one side of the inner wall of the adsorption box body 921, a driving shaft of a driving motor 923 is fixedly connected to one end of the adsorption roller 922, the driving motor 923 is fixedly connected to the side of the adsorption box body 921, the adsorption roller 922 is filled with a molecular sieve adsorbent 924, a gas guide hole 925 is arranged on the side of the adsorption roller 922, a gas guide groove 926 is arranged on the bottom of the inner wall of the adsorption box body 921 and below the adsorption roller 922, and the bottom of the adsorption box body 921 is communicated with the catalytic layer 91.
[0023] In use, the flue gas after the catalytic reaction enters the inside of the adsorption roller 922 through the gas guide groove 926 at the bottom of the adsorption box body 921, the driving motor 923 is started, the driving shaft of the driving motor 923 drives the adsorption roller 922 to rotate, the adsorption roller 922 drives the molecular sieve adsorbent 924 to rotate, the molecular sieve adsorbent 924 is scattered under the action of rotation, the flue gas can be more fully contacted and adsorbed with the molecular sieve adsorbent 924, thereby the contact area of the molecular sieve adsorbent 924 and the flue gas can be increased, and the adsorption efficiency is improved, under the adsorption action of the molecular sieve adsorbent 924, trace VOCs and malodorous gas in the flue gas are removed, and finally the emission standard can be reached.
[0024] Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art and related fields without creative work should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.
Claims
1. A flue gas purification and treatment device for asphalt production, characterized in that: Includes a workbench (1), on the top of which a cooling tower (2) is fixedly connected. A refrigerant tank (3) is fixedly connected to the top of the workbench (1) on one side of the cooling tower (2). The refrigerant tank (3) has an inlet connected to a high-pressure water pump (4) on one side. A water pipe (5) is connected to the outlet of the high-pressure water pump (4). The end of the water pipe (5) away from the high-pressure water pump (4) is connected to the cooling tower (2). The cooling tower (2) has an inlet connected to the first induced draft fan (6) on one side. The exhaust port of the induced draft fan (6) is connected to a first flue gas transmission pipe (7). One end of the first flue gas transmission pipe (7) is connected to an electrostatic dust removal device (8). The side of the electrostatic dust removal device (8) away from the first induced draft fan (6) is connected to a second flue gas transmission pipe (10). The end of the second flue gas transmission pipe (10) away from the electrostatic dust removal device (8) is connected to an adsorption purification box (9). The electrostatic dust removal device (8) is fixedly connected to the top of the workbench (1). The adsorption purification box (9) is fixedly connected to the top of the workbench (1).
2. The flue gas purification and treatment device for asphalt production according to claim 1, characterized in that: The cooling tower (2) includes a protective shell (26), with a flue gas inlet pipe (27) connected to the bottom side of the protective shell (26). A cooling device (29) is fixedly connected to the top of the protective shell (26), and a recycling box (25) is fixedly connected to the bottom of the protective shell (26). A bracket (21) is fixedly connected to the bottom of the inner wall of the recycling box (25). A spiral plate (22) is fixedly connected to the inner wall of the protective shell (26). A spiral conveyor belt (23) is rotatably connected to one side of the spiral plate (22). A circular mesh (24) is opened at the top of the spiral conveyor belt (23). The top and bottom of the spiral plate (22) are... A first rotating roller (210) and a second rotating roller (211) are rotatably connected. One end of the first rotating roller (210) and the second rotating roller (211) are rotatably connected to the bracket (21). The end of the second rotating roller (211) away from the bracket (21) passes through the protective shell (26) and is fixedly connected to the drive shaft of the rotary motor (28). The first rotating roller (210) and the second rotating roller (211) are rotatably connected to the output end and the input end of the spiral conveyor belt (23), respectively. The recycling box (25) is fixedly connected to the top of the workbench (1), and the rotary motor (28) is fixedly connected to the top of the workbench (1).
3. The flue gas purification and treatment device for asphalt production according to claim 2, characterized in that: The cooling device (29) includes a connecting pipe (294), the bottom of which is connected to a cross-shaped hollow tube (291). The side of the cross-shaped hollow tube (291) is fixedly connected to the output end of a belt drive mechanism (295). The input end of the belt drive mechanism (295) is fixedly connected to the drive shaft of a cooling motor (293). The bottom of the cross-shaped hollow tube (291) is connected to a water outlet pipe (292). The water outlet pipe (292) is provided in multiple sets and is evenly distributed at the bottom of the cross-shaped hollow tube (291).
4. The flue gas purification and treatment device for asphalt production according to claim 3, characterized in that: The connecting pipe (294) passes through the protective shell (26) and is rotatably connected to the protective shell (26). The cooling motor (293) is fixedly connected to the top of the protective shell (26). The part of the side of the connecting pipe (294) near the cooling motor (293) is connected to the water pipe (5).
5. The flue gas purification and treatment device for asphalt production according to claim 1, characterized in that: The electrostatic dust removal device (8) includes a dust removal box (81), a first high-voltage power supply (82) is fixedly connected to one side of the dust removal box (81), a honeycomb ionization plate (83) is fixedly connected to one side of the inner wall of the dust removal box (81), a honeycomb dust collection plate (84) is fixedly connected to the side of the inner wall of the dust removal box (81) away from the honeycomb ionization plate (83), an ultrasonic flaw detector (85) is fixedly connected to one side of the dust removal box (81), and a piezoelectric crystal (86) is fixedly connected to one side of the honeycomb dust collection plate (84). The piezoelectric crystal (86) penetrates the dust removal box (81) and is fixedly connected to the ultrasonic flaw detector (85).
6. The flue gas purification and treatment device for asphalt production according to claim 5, characterized in that: The dust collector (81) is fixedly connected to the top of the workbench (1). One side of the dust collector (81) is connected to the first flue gas transmission pipe (7), and the side of the dust collector (81) away from the first flue gas transmission pipe (7) is connected to the second flue gas transmission pipe (10).
7. The flue gas purification and treatment device for asphalt production according to claim 1, characterized in that: The adsorption purification box (9) includes a catalyst layer (91), an adsorption layer (92) is fixedly connected to the top of the catalyst layer (91), a purified gas outlet chimney (93) is connected to the top of the adsorption layer (92), and the catalyst layer (91) is fixedly connected to the workbench (1).
8. The flue gas purification and treatment device for asphalt production according to claim 7, characterized in that: The catalyst layer (91) includes a catalyst housing (911). A flue gas concentration detector (912) is fixedly connected to one side of the catalyst housing (911). A second high-voltage power supply (913) is fixedly connected to both sides of the catalyst housing (911). The second high-voltage power supply (913) passes through the catalyst housing (911) and is electrically connected to a discharge wire (914). A first reaction chamber (915), a second reaction chamber (916), and a third reaction chamber (917) are fixedly connected to the inner wall of the catalyst housing (911) above the discharge wire (914). A first rotating plate (918), a second rotating plate (919), and a third rotating plate (9110) are rotatably connected to the top of the first reaction chamber (915), the second reaction chamber (916), and the third reaction chamber (917). A fourth rotating plate (9116) and a fifth rotating plate (9117) are rotatably connected to the bottom of the first reaction chamber (915), the second reaction chamber (916), and the third reaction chamber (917). The sixth rotating plate (9118), the part of the inner wall of the catalyst box (911) above the first reaction box (915) is fixedly connected to an oxygen content detector (9111), the part of the side of the catalyst box (911) next to the oxygen content detector (9111) is fixedly connected to an alarm (9112), the part of the side of the catalyst box (911) above the first reaction box (915) is connected to an inert gas delivery pipe (9113), the inert gas delivery pipe (9113) 113) The part located inside the catalyst box (911) is fixedly connected to the oxygen content detector (9111). The end of the inert gas delivery pipe (9113) away from the catalyst box (911) is connected to the air outlet of the second induced draft fan (9114). The air inlet of the second induced draft fan (9114) is connected to the gas storage tank (9115). The gas storage tank (9115) is fixedly connected to the side of the catalyst box (911). The catalyst box (911) is fixedly connected to the top of the workbench (1).
9. The flue gas purification and treatment device for asphalt production according to claim 7, characterized in that: The adsorption layer (92) includes an adsorption box (921), an adsorption roller (922) is rotatably connected to one side of the inner wall of the adsorption box (921), a drive shaft of a drive motor (923) is fixedly connected to one end of the adsorption roller (922), the drive motor (923) is fixedly connected to the side of the adsorption box (921), the adsorption roller (922) is filled with molecular sieve adsorbent (924), a gas guide hole (925) is opened on the side of the adsorption roller (922), a gas guide groove (926) is opened on the bottom part of the inner wall of the adsorption box (921) below the adsorption roller (922), and the bottom of the adsorption box (921) is connected to the catalyst layer (91).