Tobacco peculiar smell treatment system for cigarette production based on spraying pressure regulation

Abstract

The invention discloses a tobacco peculiar smell treatment system for cigarette production based on spraying pressure regulation, and relates to the technical field of waste gas treatment equipment.The treatment system comprises a base, a control box, a photocatalytic oxidation chamber, a spraying mechanism, a smoke exhaust pipe and an exhaust pipe, and the control box, the photocatalytic oxidation chamber and the spraying mechanism are all fixedly connected with the base; the spraying mechanism comprises a tower body, a smoke exhaust port is formed in the tower body, the smoke exhaust pipe is fixedly connected with the smoke exhaust port and the photocatalytic oxidation chamber, the photocatalytic oxidation chamber is fixedly connected with the exhaust pipe, and the control box is connected with the photocatalytic oxidation chamber and the spraying mechanism through electric signals; according to the device, secondary treatment of multi-stage spraying, photo-oxidation catalysis and activated carbon adsorption is combined, harmful substances and peculiar smells in waste gas are thoroughly removed, the waste gas washing effect is improved by changing the stirring and spraying filler frequency and adjusting the spraying cleaning liquid pressure, and the tobacco waste gas treatment effect is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment equipment technology, specifically a tobacco odor treatment system for cigarette production based on spray pressure regulation. Background Technology

[0002] The exhaust gas from tobacco production contains a variety of components, consisting of smoke particles, volatile organic compounds, and semi-volatile organic compounds. Its odor can originate from various sources, such as solid particles like tar and nicotine produced by tobacco combustion, and harmful gases like formaldehyde, acetaldehyde, acrolein, benzene, and toluene. This complex mixture of gases cannot be completely removed by a single treatment device.

[0003] In existing tobacco production waste gas treatment processes, spraying is a commonly used pretreatment technology that effectively removes water-soluble inorganic odor substances and some particulate matter from waste gas. Its core principle is to dissolve and retain pollutants through gas-liquid contact. However, this process has significant limitations. On the one hand, it lacks an effective gas-liquid mass transfer and reaction mechanism for non-water-soluble organic waste gas components, making efficient removal impossible. On the other hand, the spraying method itself has relatively low waste gas purification efficiency. Adding multiple spray towers to improve treatment efficiency would significantly increase costs, posing a considerable economic challenge. Summary of the Invention

[0004] The purpose of this invention is to provide a tobacco odor treatment system for cigarette production based on spray pressure regulation, so as to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A tobacco odor treatment system for cigarette production based on spray pressure regulation includes a base, a control box, a photocatalytic oxidation chamber, a spray mechanism, a smoke exhaust pipe, and an exhaust pipe. The control box, the photocatalytic oxidation chamber, and the spray mechanism are all fixedly connected to the base. The spray mechanism includes a tower body with a smoke exhaust port. The smoke exhaust pipe is fixedly connected to the smoke exhaust port and the photocatalytic oxidation chamber. The photocatalytic oxidation chamber is fixedly connected to the exhaust pipe. The control box is connected to the photocatalytic oxidation chamber and the spray mechanism via electrical signals.

[0006] This invention relates to a treatment device for waste gas from cigarette production. The odorous waste gas from cigarette production is introduced into a spray system for preliminary pretreatment of particulate matter and water-soluble smoke. A control box sends an electrical control signal to the spray system, which uniformly washes the waste gas, effectively treating water-soluble inorganic odors and particulate matter. After pretreatment, the organic odorous waste gas is introduced into a photocatalytic oxidation chamber via an exhaust pipe for secondary treatment involving photocatalytic oxidation and activated carbon adsorption. This thoroughly removes harmful substances and odors from the waste gas, converting it into harmless and odorless smoke, which is then discharged through an exhaust pipe.

[0007] Furthermore, the spraying mechanism also includes a liquid spraying mechanism and a demister. The tower body is also equipped with a smoke inlet pipe, a drain outlet, side holes, observation windows, and pipe holes. The smoke outlet and the liquid spraying mechanism are both located at the top of the tower body. The smoke inlet pipe is located on the side wall of the tower body away from the smoke outlet. The drain outlet is located at the bottom of the tower body. The side holes, observation windows, and pipe holes are all located on the side wall of the tower body. There are several sets of side holes and observation windows. The several sets of side holes and observation windows are linearly and evenly distributed along the axis of the tower body. The demister is located above the liquid spraying mechanism.

[0008] The odorous exhaust gas from cigarette production enters through the inlet pipe at the bottom of the tower and rises naturally. The control box sends an electrical control signal, and the spray mechanism at the top of the tower sprays cleaning liquid downwards evenly. The falling cleaning liquid comes into contact with the rising exhaust gas. Through the gas-liquid contact between the cleaning liquid and the exhaust gas, some pollutants in the exhaust gas are absorbed by the cleaning liquid. The cleaning liquid that has absorbed the pollutants falls to the bottom of the tower and is discharged through the drain outlet. The purified exhaust gas continues to rise, passes through a demister to remove entrained droplets, and then enters the exhaust pipe through the exhaust outlet. The exhaust gas enters the photocatalytic oxidation chamber for secondary treatment. The mixing of the cleaning liquid and exhaust gas is observed through the observation window. The control box actively adjusts the packing mechanism and the spray mechanism to adjust the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas, thereby improving the efficiency of spray washing of the exhaust gas.

[0009] Furthermore, the spraying mechanism also includes a baffle plate and a packing mechanism. The baffle plate is fixedly connected to the flue gas inlet pipe. The packing mechanism is located below the liquid spraying mechanism. The packing mechanism has several groups, which are linearly and evenly distributed along the tower axis. The demister includes an assembly ring, which is fixedly connected to the tower body. Both the packing mechanism and the liquid spraying mechanism are connected to the control box via electrical signals.

[0010] Baffles prevent falling wastewater from entering the flue pipe. The falling cleaning liquid and rising exhaust gas come into contact in the packing mechanism. By arranging several sets of packing mechanisms that are linearly and evenly distributed along the tower axis, the cleaning liquid and exhaust gas continuously come into gas-liquid contact in the multi-stage packing mechanism. Some pollutants in the exhaust gas are absorbed by the cleaning liquid. The control box actively adjusts the packing mechanism to adjust the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas, thereby improving the efficiency of spray washing of exhaust gas.

[0011] Furthermore, the packing mechanism includes a first motor, a first gear rod, and a rotating ring. The first motor is fixedly connected to the tower body, the output end of the first motor is fixedly connected to the first gear rod, the first gear rod is rotatably connected to the side hole, the rotating ring is provided with a first ring tooth groove, the first gear rod meshes with the tooth surface of the first ring tooth groove, the rotating ring is rotatably connected to the tower body, and the first motor is connected to the control box via an electrical signal.

[0012] The cleaning fluid and exhaust gas are in continuous gas-liquid contact in a multi-stage packed structure. When the gas-liquid contact efficiency between the cleaning fluid and exhaust gas is poor as observed through the observation window, the control box sends an electrical control signal to the first motor. The first motor outputs a fixed-axis torque to the first gear rod. The first gear rod rotates around its axis in the side hole. Through the meshing of the tooth surfaces between the first gear rod and the first ring tooth groove, the first gear rod transmits torque to the rotating ring. The rotating ring rotates around its axis inside the tower body, adjusting the gas-liquid contact efficiency between the cleaning fluid and exhaust gas.

[0013] Furthermore, the packing mechanism also includes a flow guide ring, a packing disc, and a stirring mechanism. The stirring mechanism includes a slide rail and a threaded rod. The flow guide ring is fixedly connected to the tower body and the packing disc. The flow guide ring has an inclined ring surface located on the side of the flow guide ring closest to the center. The packing disc has several sets of leakage holes, which are evenly distributed along the circular surface of the packing disc. The slide rail is fixedly connected to the rotating ring, and the threaded rod is fixedly connected to the packing disc.

[0014] The packing disc is filled with packing material of a specified type. The falling cleaning liquid falls onto the surface of the packing, and the rising exhaust gas passes through the leak. The cleaning liquid forms a liquid film on the surface of the packing, and the exhaust gas and cleaning liquid come into contact on the surface of the packing. During this process, pollutants are absorbed by the cleaning liquid and undergo a neutralization reaction. The purified gas continues to rise, and the cleaning liquid that has absorbed pollutants flows to the packing disc through the inclined ring of the guide ring. It then falls into the next stage of the packing mechanism for multi-stage adsorption treatment. The rotating ring rotates around its axis inside the tower. By adjusting the rotation speed and direction of the rotating ring, the stirring rate of the stirring mechanism on the packing is adjusted, thereby adjusting the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas.

[0015] Furthermore, the stirring mechanism also includes an internal threaded sleeve and a stirring blade. The threaded rod is located at the center of the packing disc. The internal threaded sleeve and the threaded rod are connected by threads. The internal threaded sleeve is fixedly connected to the stirring blade, and the stirring blade is slidably connected to the slide rail.

[0016] The rotating ring rotates around its axis inside the tower. The slide rail drives the stirring blade to revolve around the threaded rod. Through the threaded connection between the internal threaded sleeve and the threaded rod, and the fixed assembly between the internal threaded sleeve and the stirring blade, the stirring blade revolves around the threaded rod while the internal threaded sleeve moves spirally along the axis of the threaded rod. The end of the stirring blade away from the internal threaded sleeve moves back along the slide rail. The stirring blade disturbs the packing layer in a wave-like manner, continuously stirring the packing, so that the waste gas and the cleaning liquid can fully contact the surface of the packing. When it is observed through the observation window that the mixing of the cleaning liquid and the waste gas is insufficient, the output speed of the first motor increases, the rotation speed around its axis increases, and the disturbance frequency of the stirring blade in the packing layer accelerates, which increases the probability of contact between the waste gas and the cleaning liquid on the surface of the packing, increases the gas-liquid contact efficiency between the cleaning liquid and the waste gas, and improves the waste gas washing effect.

[0017] Furthermore, the spraying mechanism includes an inlet bend, a second motor, a second gear rod, and a pressure regulating sprayer. The inlet bend is fixedly connected to the pipe hole, the second motor is fixedly connected to the tower body, the output end of the second motor is fixedly connected to the second gear rod, the second gear rod is rotatably connected to the side hole, the pressure regulating sprayer is provided with a second ring tooth groove, the second gear rod meshes with the tooth surface of the second ring tooth groove, the pressure regulating sprayer is rotatably connected to the inlet bend, and both the second motor and the pressure regulating sprayer are connected to the control box via electrical signals.

[0018] When the cleaning fluid is sprayed, it is delivered to the pressure regulating sprayer through the inlet bend. The control box sends an electrical control signal to the second motor, which outputs a fixed-axis torque to the second gear rod. The second gear rod rotates around its axis. Through the meshing of the teeth between the second gear rod and the second ring gear groove, the pressure regulating sprayer rotates. The pressure regulating sprayer adjusts the pressure of the cleaning fluid, spraying the cleaning fluid evenly and improving the gas-liquid contact efficiency between the cleaning fluid and the exhaust gas.

[0019] Furthermore, the demister also includes corrugated blades, which are fixedly connected to the assembly ring. Several sets of corrugated blades are provided, and these sets of corrugated blades are evenly distributed along the circumference of the assembly ring.

[0020] The falling cleaning fluid comes into contact with the rising exhaust gas, and some of the pollutants in the exhaust gas are absorbed by the cleaning fluid. The purified exhaust gas continues to rise and passes through the corrugated blades to remove the entrained droplets.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention designs a spraying mechanism. By arranging packing material of a specified material on the packing disc, the falling cleaning liquid falls onto the surface of the packing, the rising exhaust gas passes through the leakage holes, and the cleaning liquid forms a liquid film on the surface of the packing. The exhaust gas and the cleaning liquid come into contact on the surface of the packing. The cleaning liquid that absorbs pollutants flows to the packing disc through the inclined ring surface of the guide ring, and falls into the next stage of the packing mechanism for multi-stage adsorption treatment. The exhaust gas after spraying continues to be introduced into the photocatalytic oxidation chamber for secondary treatment of photocatalytic oxidation and activated carbon adsorption, thoroughly removing harmful substances and odors from the exhaust gas. The present invention designs a packing mechanism. The first motor drives the rotating ring to rotate around its axis inside the tower body through the first gear rod. The rotating ring rotates around its axis inside the tower body, and the internal threaded sleeve moves spirally along the axis of the threaded rod. The end of the stirring blade away from the internal threaded sleeve moves back along the slide rail. The stirring blade causes wave-like disturbance in the packing layer. The packing material is continuously stirred to ensure sufficient contact between the exhaust gas and the cleaning liquid on the packing surface. When insufficient mixing of the cleaning liquid and exhaust gas is observed through the observation window, the output speed of the first motor increases, and the rotation speed around its axis increases. This accelerates the agitation frequency of the stirring blades within the packing layer, increasing the probability of contact between the exhaust gas and the cleaning liquid on the packing surface, thus increasing the gas-liquid contact efficiency and improving the exhaust gas washing effect. The invention also incorporates a spraying mechanism. The cleaning liquid is delivered to the pressure-regulating sprayer via an inlet bend. A second motor drives the pressure-regulating sprayer to rotate, adjusting the pressure of the sprayed cleaning liquid to ensure even spraying and further enhance the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas. This invention combines multi-stage spraying with secondary treatment involving photo-oxidation catalysis and activated carbon adsorption to thoroughly remove harmful substances and odors from the exhaust gas. By changing the frequency of stirring the spraying packing and adjusting the pressure of the sprayed cleaning liquid, the exhaust gas washing effect is improved, significantly enhancing the treatment effect of tobacco exhaust gas. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the spray mechanism structure of the present invention; Figure 3 This is a partial cross-sectional view of the spraying mechanism of the present invention; Figure 4 This is a schematic diagram of the packing mechanism of the present invention; Figure 5 for Figure 4 A magnified view of part A; Figure 6 This is a partial cross-sectional view of the packing mechanism of the present invention; Figure 7 for Figure 6 A magnified view of part B; Figure 8 This is a schematic diagram of the liquid spraying mechanism of the present invention; Figure 9 for Figure 8 A magnified view of a portion of C.

[0023] In the diagram: 1. Base; 2. Control box; 3. Photocatalytic oxidation chamber; 4. Spraying mechanism; 41. Tower body; 411. Exhaust port; 412. Inlet pipe; 413. Drainage port; 414. Side hole; 415. Observation window; 416. Pipe hole; 42. Baffle plate; 43. Packing mechanism; 431. First motor; 432. First gear rod; 433. Rotating ring; 4331. First ring tooth groove; 434. Drainage ring; 4341. Inclined ring surface; 4 35. Packing disc; 4351. Leakage hole; 436. Stirring mechanism; 4361. Internal threaded sleeve; 4362. Stirring blade; 4363. Slide rail; 4364. Threaded rod; 44. Spraying mechanism; 441. Liquid inlet bend; 442. Second motor; 443. Second gear rod; 444. Pressure regulating sprayer; 4441. Second ring tooth groove; 45. Demister; 451. Assembly ring; 452. Corrugated blade; 5. Smoke exhaust pipe; 6. Exhaust pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1 , Figure 2 As shown, the present invention provides a technical solution for a tobacco odor treatment system for cigarette production based on spray pressure regulation, including a base 1, a control box 2, a photocatalytic oxidation chamber 3, a spray mechanism 4, a smoke exhaust pipe 5, and an exhaust pipe 6. The control box 2, the photocatalytic oxidation chamber 3, and the spray mechanism 4 are all fixedly connected to the base 1. The spray mechanism 4 includes a tower body 41, on which a smoke exhaust port 411 is provided. The smoke exhaust pipe 5 is fixedly connected to the smoke exhaust port 411 and the photocatalytic oxidation chamber 3. The photocatalytic oxidation chamber 3 is fixedly connected to the exhaust pipe 6. The control box 2 is connected to the photocatalytic oxidation chamber 3 and the spray mechanism 4 via electrical signals.

[0026] This invention is a treatment device for waste gas from cigarette production. The odorous waste gas from cigarette production is introduced into a spray mechanism 4 for preliminary pretreatment of particulate matter and water-soluble smoke in the waste gas. A control box 2 sends an electrical control signal to the spray mechanism 4, which uniformly washes the waste gas, effectively treating water-soluble inorganic odors and particulate matter. After the spray pretreatment, the organic odorous waste gas is introduced into a photocatalytic oxidation chamber 3 through an exhaust pipe 5 for secondary treatment involving photocatalytic oxidation and activated carbon adsorption. This thoroughly removes harmful substances and odors from the waste gas, converting it into harmless and odorless smoke, which is then discharged through an exhaust pipe 6.

[0027] like Figure 2 , Figure 3 As shown, the spraying mechanism 4 also includes a liquid spraying mechanism 44 and a demister 45. The tower body 41 is also provided with a smoke inlet pipe 412, a sewage outlet 413, a side hole 414, an observation window 415, and a pipe hole 416. The smoke outlet 411 and the liquid spraying mechanism 44 are both located at the top of the tower body 41. The smoke inlet pipe 412 is located at the end of the side wall of the tower body 41 away from the smoke outlet 411. The sewage outlet 413 is located at the bottom of the tower body 41. The side hole 414, the observation window 415, and the pipe hole 416 are all located on the side wall of the tower body 41. There are several sets of side holes 414 and observation windows 415. The several sets of side holes 414 and observation windows 415 are all linearly and evenly distributed along the axis of the tower body 41. The demister 45 is located above the liquid spraying mechanism 44.

[0028] The odorous exhaust gas from cigarette production enters through the inlet pipe 412 at the bottom of the tower body 41. The exhaust gas rises naturally, and the control box 2 sends an electrical control signal to the spray mechanism 44 located at the top of the tower body 41, which sprays cleaning liquid downwards evenly. The falling cleaning liquid comes into contact with the rising exhaust gas. Through the gas-liquid contact between the cleaning liquid and the exhaust gas, some pollutants in the exhaust gas are absorbed by the cleaning liquid. The cleaning liquid that has absorbed the pollutants falls to the bottom of the tower body 41 and is discharged from the drain port 413. The purified exhaust gas continues to rise, passes through the demister 45 to remove entrained droplets, and then enters the exhaust pipe 5 through the exhaust port 411. The exhaust gas enters the photocatalytic oxidation chamber 3 for secondary treatment. The mixing of the cleaning liquid and the exhaust gas is observed through the observation window 415. The control box 2 actively adjusts the packing mechanism 43 and the spray mechanism 44 to adjust the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas, thereby improving the efficiency of spray washing of the exhaust gas.

[0029] like Figure 2 , Figure 3 As shown, the spraying mechanism 4 also includes a baffle plate 42 and a packing mechanism 43. The baffle plate 42 is fixedly connected to the flue gas inlet pipe 412. The packing mechanism 43 is located below the liquid spraying mechanism 44. The packing mechanism 43 has several groups, and the several groups of packing mechanisms 43 are linearly and evenly distributed along the axis of the tower body 41. The demister 45 includes an assembly ring 451, which is fixedly connected to the tower body 41. The packing mechanism 43 and the liquid spraying mechanism 44 are both connected to the control box 2 via electrical signals.

[0030] The baffle plate 42 prevents the falling wastewater from entering the flue gas inlet pipe 412. The falling cleaning liquid and the rising exhaust gas come into contact in the packing mechanism 43. By arranging several sets of packing mechanisms 43 that are linearly and evenly distributed along the axis of the tower body 41, the cleaning liquid and exhaust gas continuously come into gas-liquid contact in the multi-stage packing mechanism 43. Some pollutants in the exhaust gas are absorbed by the cleaning liquid. The control box 2 actively adjusts the packing mechanism 43 to adjust the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas, thereby improving the efficiency of spray washing of exhaust gas.

[0031] like Figure 4 , Figure 5 As shown, the packing mechanism 43 includes a first motor 431, a first gear rod 432, and a rotating ring 433. The first motor 431 is fixedly connected to the tower body 41. The output end of the first motor 431 is fixedly connected to the first gear rod 432. The first gear rod 432 is rotatably connected to the side hole 414. The rotating ring 433 is provided with a first ring tooth groove 4331. The first gear rod 432 meshes with the tooth surface of the first ring tooth groove 4331. The rotating ring 433 is rotatably connected to the tower body 41. The first motor 431 is connected to the control box 2 via an electrical signal.

[0032] The cleaning fluid and exhaust gas are in continuous gas-liquid contact in the multi-stage packing mechanism 43. When the gas-liquid contact efficiency between the cleaning fluid and exhaust gas is poor as observed through the observation window 415, the control box 2 sends an electrical control signal to the first motor 431. The output end of the first motor 431 outputs a fixed-axis torque to the first gear rod 432. The first gear rod 432 rotates around its axis in the side hole 414. Through the meshing of the tooth surfaces between the first gear rod 432 and the first ring tooth groove 4331, the first gear rod 432 transmits torque to the rotating ring 433. The rotating ring 433 rotates around its axis in the tower body 41, thereby adjusting the gas-liquid contact efficiency between the cleaning fluid and exhaust gas.

[0033] like Figure 6 , Figure 7 As shown, the packing mechanism 43 also includes a flow guiding ring 434, a packing disc 435, and a stirring mechanism 436. The stirring mechanism 436 includes a slide rail 4363 and a threaded rod 4364. The flow guiding ring 434 is fixedly connected to the tower body 41 and the packing disc 435. The flow guiding ring 434 is provided with an inclined ring surface 4341, which is located on the side of the flow guiding ring 434 near the center. The packing disc 435 is provided with a number of leakage holes 4351, which are evenly distributed along the circular surface of the packing disc 435. The slide rail 4363 is fixedly connected to the rotating ring 433, and the threaded rod 4364 is fixedly connected to the packing disc 435.

[0034] The packing disc 435 is filled with packing of a specified material. The falling cleaning liquid falls onto the surface of the packing, and the rising exhaust gas passes through the leakage hole 4351. The cleaning liquid forms a liquid film on the surface of the packing, and the exhaust gas and the cleaning liquid come into contact on the surface of the packing. During this process, the pollutants are absorbed by the cleaning liquid and undergo a neutralization reaction. The purified gas continues to rise, and the cleaning liquid that has absorbed the pollutants flows to the packing disc 435 through the inclined annular surface 4341 of the guide ring 434. It then falls into the next stage packing mechanism 43 through the packing disc 435 for multi-stage adsorption treatment. The rotating ring 433 rotates around its axis inside the tower body 41. By adjusting the fixed axis speed and direction of the rotating ring 433, the stirring rate of the stirring mechanism 436 on the packing is adjusted, thereby adjusting the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas.

[0035] like Figure 6 , Figure 7 As shown, the stirring mechanism 436 also includes an internal threaded sleeve 4361 and a stirring blade 4362. The threaded rod 4364 is located at the center of the packing disc 435. The internal threaded sleeve 4361 and the threaded rod 4364 are connected by threads. The internal threaded sleeve 4361 is fixedly connected to the stirring blade 4362. The stirring blade 4362 is slidably connected to the slide rail 4363.

[0036] The rotating ring 433 rotates around its axis inside the tower body 41. The slide rail 4363 drives the stirring blade 4362 to revolve around the threaded rod 4364. Through the threaded connection between the internal threaded sleeve 4361 and the threaded rod 4364, and the fixed assembly between the internal threaded sleeve 4361 and the stirring blade 4362, while the stirring blade 4362 revolves around the threaded rod 4364, the internal threaded sleeve 4361 moves spirally along the axis of the threaded rod 4364. The end of the stirring blade 4362 away from the internal threaded sleeve 4361 moves along the slide rail 4363. As the agitator moves back and forth, the stirring blade 4362 creates a wave-like disturbance in the packing layer, continuously stirring the packing and ensuring that the exhaust gas and cleaning liquid are in full contact on the packing surface. When the mixing of the cleaning liquid and exhaust gas is insufficient as observed through the observation window 415, the output speed of the first motor 431 increases, the rotation speed of the rotating ring 433 around its axis increases, and the disturbance frequency of the stirring blade 4362 in the packing layer accelerates, increasing the probability of contact between the exhaust gas and cleaning liquid on the packing surface, increasing the gas-liquid contact efficiency between the cleaning liquid and the exhaust gas, and improving the exhaust gas washing effect.

[0037] like Figure 8As shown, the spraying mechanism 44 includes an inlet bend 441, a second motor 442, a second gear rod 443, and a pressure regulating sprayer 444. The inlet bend 441 is fixedly connected to the pipe hole 416. The second motor 442 is fixedly connected to the tower body 41. The output end of the second motor 442 is fixedly connected to the second gear rod 443. The second gear rod 443 is rotatably connected to the side hole 414. The pressure regulating sprayer 444 is provided with a second ring tooth groove 4441. The second gear rod 443 meshes with the tooth surface of the second ring tooth groove 4441. The pressure regulating sprayer 444 is rotatably connected to the inlet bend 441. The second motor 442 and the pressure regulating sprayer 444 are both connected to the control box 2 via electrical signals.

[0038] When the cleaning fluid is sprayed, the cleaning fluid is delivered to the pressure regulating sprayer 444 through the inlet bend 441. The control box 2 sends an electrical control signal to the second motor 442. The second motor 442 outputs a fixed-axis torque to the second gear rod 443. The second gear rod 443 rotates around its axis. Through the meshing of the tooth surfaces between the second gear rod 443 and the second ring tooth groove 4441, the pressure regulating sprayer 444 rotates. The pressure regulating sprayer 444 adjusts the pressure of the cleaning fluid and sprays the cleaning fluid evenly, thereby improving the gas-liquid contact efficiency between the cleaning fluid and the exhaust gas.

[0039] like Figure 9 As shown, the demister 45 also includes a corrugated blade 452, which is fixedly connected to the assembly ring 451. The corrugated blade 452 is provided in several groups, and the several groups of corrugated blades 452 are evenly distributed around the assembly ring 451.

[0040] The falling cleaning fluid comes into contact with the rising exhaust gas, and some of the pollutants in the exhaust gas are absorbed by the cleaning fluid. The purified exhaust gas continues to rise and passes through the corrugated blade 452 to remove the entrained droplets.

[0041] The working principle of this invention: The odorous exhaust gas from cigarette production is introduced into the spraying mechanism 4. The spraying mechanism 44, located at the top of the tower body 41, evenly sprays cleaning liquid downwards. The falling cleaning liquid comes into contact with the rising exhaust gas. The cleaning liquid and exhaust gas continuously come into gas-liquid contact within the multi-stage packing mechanism 43. Packing material of a specified material is arranged on the packing disc 435. The falling cleaning liquid lands on the surface of the packing, and the rising exhaust gas passes through the drain hole 4351. The cleaning liquid forms a liquid film on the surface of the packing. The exhaust gas and cleaning liquid... The packing surface comes into contact with the cleaning fluid. During this process, contaminants are absorbed by the cleaning fluid and neutralized. The first motor 431 drives the rotating ring 433 to rotate around its axis inside the tower body 41 via the first gear rod 432. The rotating ring 433 rotates around its axis inside the tower body 41. The internal threaded sleeve 4361 moves spirally along the axis of the threaded rod 4364. The end of the stirring blade 4362 away from the internal threaded sleeve 4361 moves back and forth along the slide rail 4363. The stirring blade 4362 forms a wave pattern in the packing layer. The turbulence continuously stirs the packing material, ensuring full contact between the waste gas and the cleaning liquid on the packing surface. When insufficient mixing of the cleaning liquid and waste gas is observed through the observation window 415, the output speed of the first motor 431 increases, the rotation speed of the rotating ring 433 around its axis increases, and the agitation frequency of the stirring blades 4362 in the packing layer accelerates. This increases the probability of contact between the waste gas and the cleaning liquid on the packing surface, increasing the gas-liquid contact efficiency between the cleaning liquid and the waste gas, and improving the waste gas washing effect. The cleaning liquid, having absorbed pollutants, falls to the bottom of the tower body 41 and is discharged through the drain port 413. The purified waste gas continues to rise, passes through the demister 45 to remove entrained droplets, and then enters the exhaust pipe 5 through the smoke outlet 411. The waste gas enters the photocatalytic oxidation chamber 3 for secondary treatment. The organic odorous waste gas in the chamber undergoes secondary treatment via the exhaust pipe 5, involving photocatalytic oxidation and activated carbon adsorption, thoroughly removing harmful substances and odors from the waste gas and converting it into harmless and odorless flue gas, which is then discharged through the exhaust pipe 6.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tobacco odor treatment system for cigarette production based on spray pressure regulation, characterized in that: The processing system includes a base (1), a control box (2), a photocatalytic oxidation chamber (3), a spray mechanism (4), a smoke exhaust pipe (5), and an exhaust pipe (6). The control box (2), the photocatalytic oxidation chamber (3), and the spray mechanism (4) are all fixedly connected to the base (1). The spray mechanism (4) includes a tower body (41), and the tower body (41) is provided with a smoke exhaust port (411). The smoke exhaust pipe (5) is fixedly connected to the smoke exhaust port (411) and the photocatalytic oxidation chamber (3). The photocatalytic oxidation chamber (3) is fixedly connected to the exhaust pipe (6). The control box (2) is connected to the photocatalytic oxidation chamber (3) and the spray mechanism (4) via electrical signals. The spraying mechanism (4) also includes a baffle plate (42) and a packing mechanism (43). The packing mechanism (43) further includes a flow guide ring (434), a packing disc (435), and a stirring mechanism (436). The flow guide ring (434) is fixedly connected to the tower body (41) and the packing disc (435). The stirring mechanism (436) includes a slide rail (4363) and a threaded rod (4364). The slide rail (4363) is fixedly connected to the rotating ring (433), and the threaded rod (4364) is fixedly connected to the packing disc (435). The stirring mechanism (436) further includes an internal threaded sleeve (4361) and a stirring blade (4362). The threaded rod (4364) is located at the center of the packing disc (435). The internal threaded sleeve (4361) and the threaded rod (4364) are connected by threads. The internal threaded sleeve (4361) and the stirring blade (4362) are fixedly connected. The stirring blade (4362) is slidably connected to the slide rail (4363).

2. The tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 1, characterized in that: The spraying mechanism (4) also includes a liquid spraying mechanism (44) and a demister (45). The tower body (41) is also provided with a smoke inlet pipe (412), a drain outlet (413), a side hole (414), an observation window (415), and a pipe hole (416). The smoke outlet (411) and the liquid spraying mechanism (44) are both located at the top of the tower body (41), and the smoke inlet pipe (412) is located on the side wall of the tower body (41) away from the smoke outlet (411). At one end, the drain outlet (413) is located at the bottom of the tower body (41). The side hole (414), observation window (415), and pipe hole (416) are all located on the side wall of the tower body (41). The side hole (414) and observation window (415) are provided in several groups. The several groups of side holes (414) and observation windows (415) are linearly and evenly distributed along the axis of the tower body (41). The demister (45) is located above the spraying mechanism (44).

3. The tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 2, characterized in that: The baffle plate (42) is fixedly connected to the flue gas inlet pipe (412). The packing mechanism (43) is located below the liquid spraying mechanism (44). The packing mechanism (43) has several groups, and the several groups of packing mechanisms (43) are linearly and evenly distributed along the axis of the tower body (41). The demister (45) includes an assembly ring (451), which is fixedly connected to the tower body (41). The packing mechanism (43) and the liquid spraying mechanism (44) are both connected to the control box (2) via electrical signals.

4. The tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 3, characterized in that: The filling mechanism (43) includes a first motor (431), a first gear rod (432), and a rotating ring (433). The first motor (431) is fixedly connected to the tower body (41). The output end of the first motor (431) is fixedly connected to the first gear rod (432). The first gear rod (432) is rotatably connected to the side hole (414). The rotating ring (433) is provided with a first ring tooth groove (4331). The first gear rod (432) meshes with the tooth surface of the first ring tooth groove (4331). The rotating ring (433) is rotatably connected to the tower body (41). The first motor (431) is connected to the control box (2) via an electrical signal.

5. A tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 4, characterized in that: The drainage ring (434) is provided with an inclined annular surface (4341), which is located on the side of the drainage ring (434) near the center. The packing disc (435) is provided with a leakage hole (4351), which is provided in several groups. The several groups of leakage holes (4351) are evenly distributed along the circular surface of the packing disc (435).

6. The tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 3, characterized in that: The spraying mechanism (44) includes an inlet bend (441), a second motor (442), a second gear rod (443), and a pressure regulating sprayer (444). The inlet bend (441) is fixedly connected to the pipe hole (416). The second motor (442) is fixedly connected to the tower body (41). The output end of the second motor (442) is fixedly connected to the second gear rod (443). The second gear rod (443) is rotatably connected to the side hole (414). The pressure regulating sprayer (444) is provided with a second ring tooth groove (4441). The second gear rod (443) meshes with the tooth surface of the second ring tooth groove (4441). The pressure regulating sprayer (444) is rotatably connected to the inlet bend (441). The second motor (442) and the pressure regulating sprayer (444) are both connected to the control box (2) via electrical signals.

7. A tobacco odor treatment system for cigarette production based on spray pressure regulation according to claim 2, characterized in that: The demister (45) also includes a corrugated blade (452), which is fixedly connected to the assembly ring (451). The corrugated blade (452) is provided in several groups, and the several groups of corrugated blades (452) are evenly distributed around the assembly ring (451).

Images