Desulfurization purification device and process based on industrial waste gas treatment

Abstract

The invention relates to the technical field of waste gas treatment, and discloses a desulfurization purification device and process based on industrial waste gas treatment.The desulfurization purification device comprises a desulfurization tower, a rotational flow mechanism, a transmission mechanism and a solid-liquid separation mechanism and further comprises a collection box fixedly installed at the bottom of the desulfurization tower and a dust removal mechanism fixedly installed on one side of the desulfurization tower; according to the technical scheme, through the combined action of spiral blades in the rotational flow mechanism and the transmission mechanism, an efficient rotating flow field is formed, the retention time of waste gas in the tower is prolonged, sulfide and atomized reaction liquid are more fully contacted, chemical reaction of the reaction liquid on the sulfide is promoted, and therefore efficient sulfide removal and purification are achieved; wherein the rotational flow mechanism endows the waste gas with tangential speed through inclined blades in the rotational flow mechanism, so that the waste gas rotates, a spiral ascending flow field is formed in the desulfurization tower, the retention time of the waste gas is prolonged, the contact opportunity of the waste gas and atomized reaction liquid is increased, sulfide absorption is facilitated, and the desulfurization purification effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to a desulfurization purification device and process based on industrial waste gas treatment. Background Art

[0002] In the existing industrial production process, a large amount of waste gas is generated. The waste gas contains sulfide. If the waste gas is directly discharged into the atmosphere, it will seriously affect the air quality and people's health. The acid rain formed by the exhaust gas combined with rainwater greatly damages the growth of green plants. At the same time, it also causes relatively serious pollution to rivers, thereby causing irreversible damage to the environment. Therefore, effectively purifying sulfur dioxide in industrial waste gas has become an urgent problem that needs to be solved in the industrial field.

[0003] A rotary counter-hedge industrial waste gas desulfurization system and process with announcement number CN118491286B has solved the problem that when the waste gas and the reaction liquid come into contact with each other, the waste gas and the reaction liquid are mixed and washed, and are affected by gravity and continue to move downward, resulting in a short reaction time of the gas and liquid and inability to fully mix. At the same time, the liquid will polymerize to the surface of the pipe wall during the downward movement. During the polymerization process, impurities will remain on the surface of the pipe wall. The long-term residual impurities will affect the desulfurization efficiency and the normal operation of the device. However, in actual use, similar structures still have many defects. For example, during the waste gas desulfurization and purification process of the desulfurization purification device, the waste gas passes through the purification tower for a short time, resulting in insufficient contact time between the waste gas and the purification liquid, affecting the effective reaction of the purification liquid with sulfide, and reducing the desulfurization effect.

[0004] Therefore, the above technical problems need to be solved. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the present invention proposes a desulfurization purification device and process based on industrial waste gas treatment to solve the problem that the waste gas passes through the purification tower for a short time, resulting in insufficient contact time between the waste gas and the purification liquid, affecting the effective reaction between the purification liquid and sulfide, and reducing the desulfurization effect.

[0006] In order to solve the above technical problems, the basic technical solutions proposed by the present invention are: A desulfurization and purification device based on industrial waste gas treatment includes a desulfurization tower, a cyclone mechanism, a transmission mechanism and a solid-liquid separation mechanism, and also includes a collection box fixedly installed at the bottom of the desulfurization tower, and a dust removal mechanism fixedly installed on one side of the desulfurization tower. The cyclone mechanism is fixedly installed inside the desulfurization tower, and the bottom of the cyclone mechanism is equipped with a transmission mechanism, and the transmission mechanism is rotatably installed inside the desulfurization tower; the cyclone mechanism includes a disc fixedly installed on the inner wall of the desulfurization tower, a mounting disc fixedly installed at the center of the disc, a face gear disc rotatably installed inside the mounting disc, and the top of the face gear disc is meshed and connected with an annular array of There are multiple distributed flip bevel gears, and blades corresponding to the multiple flip bevel gears are distributed in a ring array between the disc and the mounting disc, and one end of the blade is fixedly connected to one end of the flip bevel gear through a shaft; the transmission mechanism includes a transmission shaft fixedly mounted on the bottom of the flip bevel gear, and two spiral leaves are fixedly mounted on the outside of the transmission shaft through two fixed disk frames respectively, and a cleaning scraper is fixedly mounted on the outside of the transmission shaft, and the cleaning scraper is located below the fixed disk frame; the solid-liquid separation mechanism is fixedly mounted inside the collecting box, and a driving mechanism extending to the inside is rotatably mounted on one side of the front of the collecting box.

[0007] Preferably, the solid-liquid separation mechanism includes a collecting pipe fixedly mounted on the top wall of the collecting box, two filter bags fixedly mounted on both sides of the collecting pipe, extrusion plates fixedly mounted on opposite ends of the two filter bags, a wire sleeve embedded in the interior of the extrusion plate, a reciprocating screw rod installed through the interior of the wire sleeve, one end of the reciprocating screw rod is fixedly connected to the output end of the driving motor, and the driving motor is fixedly mounted on one side of the collecting box, a solid discharge pipe is fixedly mounted on the bottom of the collecting pipe, a discharge valve plate is movably mounted inside the top of the solid discharge pipe, and a rack is fixedly mounted on one side of the discharge valve plate.

[0008] Preferably, a solid discharge port is fixedly installed on one side of the collecting box, the solid discharge port is in continuous connection with the solid discharge pipe, and a toothed valve plate is movably installed inside the solid discharge port.

[0009] Preferably, the driving mechanism includes a servo motor fixedly mounted on the front side of the collection box, and a synchronous pulley is fixedly mounted on the output end of the servo motor. The two ends of the synchronous pulley are fixedly connected to the first gear and the second gear respectively through two shafts, and the first gear is meshed with the toothed valve plate, and the second gear is meshed with the rack.

[0010] Preferably, a demister is fixedly installed at the top of the desulfurization tower, and a mist distribution plate is fixedly installed at the bottom of the desulfurization tower.

[0011] Preferably, an extended atomizing mechanism is installed throughout the interior of the desulfurization tower, and the atomizing mechanism includes a water pump fixedly installed at the bottom of one side of the collecting box, the input end of the water pump is connected to the collecting box through a pipeline, and the output end of the water pump is installed with a branch pipe, and a backwash nozzle, a first atomizing nozzle, and a second atomizing nozzle are installed on one side of the branch pipe through three control valves. The backwash nozzle is located below the demister, the first atomizing nozzle is located above the swirl mechanism, and the second atomizing nozzle is located above the mist distribution plate.

[0012] Preferably, a servo motor is fixedly mounted on one side of the desulfurization tower, and a shaft extending into the interior of the desulfurization tower is fixedly mounted on the output end of the servo motor, and one end of the shaft close to the transmission shaft is transmission-connected to the transmission shaft through a bevel gear assembly.

[0013] Preferably, the dust removal mechanism includes a cyclone separator fixedly installed on the other side of the desulfurization tower, a diffusion pipe is installed through one end of the cyclone separator, a throat pipe is installed through one end of the diffusion pipe through the water inlet plate, a contraction pipe is installed through one end of the throat pipe, a water inlet valve is installed through the bottom of the water inlet plate, and one side of the water inlet plate is connected to the throat pipe through eight branches.

[0014] A process for a desulfurization purification device based on industrial waste gas treatment comprises the following steps: Step 1: The exhaust gas enters the throat at high speed through the contraction tube, while water enters the water inlet plate through the water inlet valve. The water inside the water inlet plate enters the throat through eight branches, colliding with the high-speed exhaust gas to form droplets. The droplets are transported to the inside of the cyclone separator through the diffusion tube. The spiral structure inside the cyclone separator collides with the droplets to form large particles that are settled down, thus removing dust from the exhaust gas. Step 2: After dust removal, the exhaust gas enters the desulfurization tower and rises through the mist distribution plate. The mist distribution plate evenly distributes the exhaust gas and also intercepts the water vapor in the exhaust gas. The water vapor gathers into water droplets at the bottom of the mist distribution plate and falls into the solid-liquid separation mechanism. When the exhaust gas rises to the position of the transmission mechanism, the spiral blades are used to guide the exhaust gas in a spiral direction, causing the exhaust gas to spirally rise, thereby reducing the flow rate of the exhaust gas and prolonging the residence time of the exhaust gas in the desulfurization tower. Step 3: Simultaneously drive the atomizing mechanism to open the control valves corresponding to the first atomizing nozzle and the second atomizing nozzle. Use a water pump to extract the reaction liquid inside the collection box. The extracted reaction liquid is distributed to the first atomizing nozzle and the second atomizing nozzle through a branch pipe. The reaction liquid is atomized and sprayed through the second atomizing nozzle. The atomized reaction liquid fully contacts the rising exhaust gas, thereby desulfurizing the sulfide in the exhaust gas. Step 4: As the exhaust gas continues to rise through the cyclone mechanism, the inclined blades guide the exhaust gas, giving it a tangential velocity, thereby generating a rotational motion. The rotational motion causes the exhaust gas to form a spiral trajectory in the tower, forming a spiral upward flow field in the absorption tower, extending the residence time of the exhaust gas in the tower and increasing the contact opportunity with the atomized reaction liquid sprayed from the first atomizing nozzle, further desulfurizing the sulfides in the exhaust gas, achieving a full desulfurization effect; Step 5: The desulfurized exhaust gas continues to rise and passes through the demister, which effectively intercepts the water mist and particles in the exhaust gas. The desulfurized exhaust gas is then transported to the next treatment process through the outlet pipe on the top side of the desulfurization tower. Step six: When recycling the liquid, start the solid-liquid separation mechanism to separate the collected reaction liquid into solid and liquid, so as to facilitate the adjustment of the concentration of the recovered reaction liquid and reuse it, thereby achieving the purpose of circulating the reaction liquid. Specifically, the reciprocating screw is driven by a driving motor to rotate, and the rotating reciprocating screw drives the two extrusion plates to move relative to each other through the wire sleeve. The relatively moving extrusion plates drive the filter bag to fold, and the reaction liquid inside the filter bag is squeezed. The squeezed liquid falls into the interior of the collection box through the filter bag for collection. When discharging the separated solid, start the driving mechanism to open the discharge valve plate through the rack, and at the same time open the toothed valve plate. The solid enters the solid discharge pipe and is guided to the solid discharge port and discharged from the interior of the solid discharge pipe.

[0015] The beneficial effects of the present invention are: The technical solution of the present invention forms an efficient rotating flow field through the combined action of the spiral blades in the cyclone mechanism and the transmission mechanism, prolongs the residence time of the exhaust gas in the tower, solves the problem that the exhaust gas passes through the purification tower for a short time, affecting the effective reaction of the purification liquid with the sulfide, makes the contact between the sulfide and the atomized reaction liquid more complete, promotes the chemical reaction of the reaction solution with the sulfide, thereby achieving efficient sulfide removal and purification; specifically, the exhaust gas is guided by the spiral blades in the transmission mechanism, so that the exhaust gas spirally rises, prolongs the residence time of the exhaust gas in the desulfurization tower, increases the contact probability with the reaction liquid, and improves the purification efficiency; through the cyclone mechanism inside The inclined blades give the exhaust gas a tangential velocity, causing it to produce a rotational motion, thereby forming a spiral upward flow field in the desulfurization tower, further extending the residence time of the exhaust gas, and increasing its contact opportunities with the atomized reaction liquid sprayed from the first atomizing nozzle, which is beneficial to the absorption of sulfides and improves the desulfurization purification effect; and by adjusting the blade angle in the swirl mechanism, the exhaust gas flow rate can be controlled and the direction of the exhaust gas can be changed, and the design of the flippable blades facilitates the cleaning of the back of the blades; the rotating transmission shaft drives the spiral blades to rotate through the fixed disc frame, and the rotating spiral blades automatically clean the deposits on the inner wall of the desulfurization tower, effectively improving the desulfurization purification efficiency and maintenance convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the internal structure of the desulfurization tower in the present invention; Figure 4 Schematic diagram of the transmission connection between the transmission mechanism and the swirl mechanism in the present invention; Figure 5 Schematic diagram of the internal structure of the cyclone mechanism in the present invention; Figure 6 Schematic diagram of the atomization mechanism structure of the present invention; Figure 7 This is a schematic diagram of the structure of the collection box in the present invention; Figure 8 Schematic diagram of the internal structure of the solid-liquid separation mechanism of the present invention; Figure 9 Schematic diagram of the driving mechanism structure of the present invention; Figure 10 It is a schematic diagram of the dust removal mechanism structure in the present invention.

[0017] Description of reference numerals: 1. Desulfurization tower; 101. Demister; 102. Mist distribution plate; 2. Dust removal mechanism; 201. Cyclone separator; 202. Diffuser; 203. Water inlet plate; 204. Water inlet valve; 205. Throat pipe; 3. Collection box; 301. Solids discharge port; 302. Toothed valve plate; 4. Driving mechanism; 401. Servo motor; 402. Synchronous pulley; 403. First gear; 404. Second gear; 5. Atomization mechanism; 501. Water pump; 502. Branch pipe; 503. Backwash nozzle; 504. First atomizing nozzle; 505. Second Atomizing nozzle; 6. Swirl mechanism; 601. Disc; 602. Mounting disc; 603. Face gear disc; 604. Flip bevel gear; 605. Blade; 7. Transmission mechanism; 701. Transmission shaft; 702. Cleaning scraper; 703. Fixed disc rack; 704. Spiral blade; 8. Solid-liquid separation mechanism; 801. Collection tube; 802. Filter bag; 803. Extrusion plate; 804. Drive motor; 805. Reciprocating screw; 806. Solid discharge pipe; 807. Discharge valve plate; 808. Rack; 9. Servo motor; 901. Bevel gear assembly. DETAILED DESCRIPTION

[0018] The following will be combined with the Figure 1 To the attached Figure 10The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] A desulfurization and purification device based on industrial waste gas treatment includes a desulfurization tower 1, a cyclone mechanism 6, a transmission mechanism 7 and a solid-liquid separation mechanism 8, and also includes a collection box 3 fixedly installed at the bottom of the desulfurization tower 1, and a dust removal mechanism 2 fixedly installed on one side of the desulfurization tower 1. The cyclone mechanism 6 is fixedly installed inside the desulfurization tower 1, and the bottom of the cyclone mechanism 6 is driven by a transmission mechanism 7, and the transmission mechanism 7 is rotatably installed inside the desulfurization tower 1; the cyclone mechanism 6 includes a disc 601 fixedly installed on the inner wall of the desulfurization tower 1, a mounting disc 602 is fixedly installed at the center of the disc 601, and a face tooth disc 603 is rotatably installed inside the mounting disc 602, and the top of the face tooth disc 603 is meshed and connected with multiple flip cones distributed in an annular array. Gear 604, blades 605 corresponding to the multiple flip bevel gears 604 are distributed in an annular array between the disc 601 and the mounting disc 602, and one end of the blade 605 is fixedly connected to one end of the flip bevel gear 604 via a shaft; the transmission mechanism 7 includes a transmission shaft 701 fixedly mounted on the bottom of the flip bevel gear 604, and two spiral blades 704 are fixedly mounted on the outer side of the transmission shaft 701 through two fixed disk racks 703 respectively, and a cleaning scraper 702 is fixedly mounted on the outer side of the transmission shaft 701, and the cleaning scraper 702 is located below the fixed disk rack 703; the solid-liquid separation mechanism 8 is fixedly mounted inside the collection box 3, and a driving mechanism 4 extending into the interior is rotatably mounted on one side of the front of the collection box 3; It should be noted that the desulfurization tower 1 is used to treat sulfides in industrial waste gas. The internal cyclone mechanism 6 realizes efficient rotation of the waste gas, promotes sufficient contact and reaction between the sulfides and the alkali solution, and thus achieves desulfurization and purification. The spiral blades 704 in the transmission mechanism 7 guide the waste gas, causing the waste gas to spiral upward, thereby extending the waste gas residence time. The centrifugal force generated by the swirl mechanism 6 on the exhaust gas causes the exhaust gas to form a spiral upward flow field in the desulfurization tower 1, thereby extending the residence time of the exhaust gas in the tower. Specifically, the exhaust gas is guided by the inclined blades 605, and the exhaust gas is given a tangential velocity, thereby generating a rotational motion. The rotational motion causes the exhaust gas to form a spiral trajectory in the tower, thereby extending the residence time of the exhaust gas in the purification tower and increasing the contact opportunity with the atomized reaction liquid sprayed out by the first atomizing nozzle 504, which is beneficial to the absorption of sulfides and further improves the purification effect. The exhaust gas flow rate is controlled by adjusting the angle of the blades 605 in the cyclone mechanism 6, and the direction of the exhaust gas is changed by adjusting the facing angle of the blades 605. The subsequent cleaning work is facilitated by flipping the blades 605. When adjusting the angle of the blade 605 in the swirl mechanism 6, the driving force of the servo motor 9 is transmitted to the transmission shaft 701 through the cooperation of the shaft and the bevel gear assembly 901, driving the transmission shaft 701 to rotate, and the rotating transmission shaft 701 drives the spiral blade 704 to rotate through the fixed disk frame 703, drives the cleaning scraper 702 to rotate, and drives the surface gear disk 603 to rotate. The rotating surface gear disk 603 drives multiple annularly arranged flip bevel gears 604 to rotate at the same time, and synchronously drives the corresponding blades 605 to flip synchronously, adjust the inclination angle of the blade 605, and facilitate the adjustment of the cleaning surface when cleaning the blade 605. While adjusting the angle of the blade 605, the rotating spiral blade 704 cleans the inner wall of the desulfurization tower 1, achieving an automatic cleaning effect, and the rotating driving cleaning scraper 702 cleans both sides of the mist distribution plate 102; A reaction liquid concentration monitor, a reaction liquid concentration regulating valve, and a liquid level valve are installed on one side of the front of the collection box 3. The reaction liquid concentration regulating valve is connected to an external concentration regulating mechanism through a pipeline, and a controller is fixedly installed on the front of the collection box 3. The dust removal mechanism 2 can effectively remove particulate matter in the exhaust gas and improve the desulfurization effect; the solid-liquid separation mechanism 8 can separate the solid suspended matter from the liquid in the wastewater to ensure that the wastewater can be recycled. The collecting box 3 fixedly installed at the bottom of the desulfurization tower 1 is used to collect the separated wastewater. The concentration of the wastewater collected in the collecting box 3 is monitored in real time by the reaction liquid concentration monitor, and the monitoring electrical signal is transmitted to the controller. The controller controls the reaction liquid concentration regulating valve according to the set reaction liquid concentration value, so that the concentration regulating mechanism transports the high-concentration reaction liquid to the collecting box 3 through the reaction liquid concentration regulating valve, so as to achieve the purpose of automatically adjusting the internal concentration of the collecting box 3 and realize the circulation adaptation of the reaction liquid collected in the collecting box 3; the driving mechanism 4 drives the discharge valve plate 807 and the tooth groove valve plate 302 respectively to facilitate the discharge of the separated solids.

[0020] like Figures 7 and 8 As shown, the solid-liquid separation mechanism 8 includes a collecting pipe 801 fixedly mounted on the top wall of the collecting box 3, two filter bags 802 are fixedly mounted on both sides of the collecting pipe 801, and extrusion plates 803 are fixedly mounted on opposite ends of the two filter bags 802. A wire sleeve is embedded in the extrusion plate 803, and a reciprocating screw rod 805 is installed through the wire sleeve. One end of the reciprocating screw rod 805 is fixedly connected to the output end of the driving motor 804, and the driving motor 804 is fixedly mounted on one side of the collecting box 3. A solid discharge pipe 806 is fixedly mounted on the bottom of the collecting pipe 801, and a discharge valve plate 807 is movably mounted on the top of the solid discharge pipe 806. A rack 808 is fixedly mounted on one side of the discharge valve plate 807. It should be noted that the collected liquid is transported to the filter bags 802 on both sides through the collection pipe 801, and the two filter bags 802 preliminarily filter the solid suspended matter in the liquid; then the reciprocating screw 805 is driven to rotate by the driving motor 804, and the rotating reciprocating screw 805 converts the rotational force into a linear reciprocating motion through the wire sleeve, driving the two extrusion plates 803 to move relative to each other to squeeze the preliminarily filtered solid suspended matter inside the filter bag 802, so that the solid suspended matter and the liquid are separated, and fall into the collection box 3 through the filter bag 802 for collection, and the separated solid suspended matter is driven by the driving mechanism 4 to open the discharge valve plate 807 and the toothed valve plate 302 respectively, and the solid suspended matter falls into the solid discharge pipe 806 through the opened discharge valve plate 807, and is discharged through the inclined surface structure of the solid discharge pipe 806 through the solid discharge port 301 of the opened toothed valve plate 302.

[0021] like Figures 7 and 8 As shown, a solid discharge port 301 is fixedly installed on one side of the collecting box 3, the solid discharge port 301 is connected to the solid discharge pipe 806, and a toothed valve plate 302 is movably installed inside the solid discharge port 301; It should be noted that the separated solid waste can be discharged from the solid discharge pipe 806 through the solid discharge port 301, and the slotted valve plate 302 can be movably installed inside the solid discharge port 301. By adjusting the position of the slotted valve plate 302, the solid discharge port 301 can be opened or closed, thereby controlling the discharge of solid waste.

[0022] like Figure 9 As shown, the driving mechanism 4 includes a servo motor 401 fixedly mounted on the front side of the collection box 3. A synchronous pulley 402 is fixedly mounted on the output end of the servo motor 401. The two ends of the synchronous pulley 402 are respectively fixedly connected to a first gear 403 and a second gear 404 through two shafts. The first gear 403 is meshed with the toothed valve plate 302, and the second gear 404 is meshed with the rack 808. It should be noted that the servo motor 401 is powered on to drive the synchronous pulley 402 to operate, and the running synchronous pulley 402 drives the first gear 403 and the second gear 404 to rotate synchronously through two shafts. The rotating first gear 403 drives the meshing toothed valve plate 302 to move, and the solid discharge port 301 is controlled to be opened or closed by controlling the movement of the toothed valve plate 302, so as to facilitate the control of the discharge of solid waste; the rotating second gear 404 drives the discharge valve plate 807 to move through the meshing rack 808, and controls the movement of the discharge valve plate 807 to control the opening or closing state of the solid discharge pipe 806, so as to facilitate the control of the solid suspended matter through the opened discharge valve plate 807 and fall into the solid discharge pipe 806.

[0023] like Figures 1 to 2As shown, a demister 101 is fixedly installed on the top of the desulfurization tower 1, and a mist distribution plate 102 is fixedly installed on the bottom of the desulfurization tower 1; It should be noted that the demister 101 removes fine droplets in the exhaust gas to prevent these droplets from being discharged with the exhaust gas, thereby reducing adverse effects on subsequent equipment and the environment; the mist distribution plate 102 evenly disperses the rising exhaust gas to ensure full contact between the exhaust gas and the absorption liquid.

[0024] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 As shown, an extended atomizing mechanism 5 is installed inside the desulfurization tower 1. The atomizing mechanism 5 includes a water pump 501 fixedly installed at the bottom of one side of the collecting box 3. The input end of the water pump 501 is connected to the collecting box 3 through a pipeline. The output end of the water pump 501 is installed through a branch pipe 502. A backwash nozzle 503, a first atomizing nozzle 504, and a second atomizing nozzle 505 are installed on one side of the branch pipe 502 through three control valves. The backwash nozzle 503 is located below the demister 101, the first atomizing nozzle 504 is located above the swirl mechanism 6, and the second atomizing nozzle 505 is located above the mist distribution plate 102. It should be noted that the water pump 501 is responsible for extracting and pressurizing the reaction liquid in the collection box 3, and then transporting it to the three nozzles through the branch pipe 502; and the three nozzles are controlled separately by the corresponding control valves according to the working status of the device; when the device is in desulfurization operation, the control valves corresponding to the first atomizing nozzle 504 and the second atomizing nozzle 505 are opened, so that the branch pipe 502 transports the reaction liquid to the first atomizing nozzle 504 and the second atomizing nozzle 505 for atomization and spraying, so as to carry out contact reaction with the sulfides in the exhaust gas; when the device is in cleaning operation, the control valves corresponding to the backwashing nozzle 503, the first atomizing nozzle 504, and the second atomizing nozzle 505 are opened at the same time, the backwashing nozzle 503 transports the liquid to backwash the demister 101, the first atomizing nozzle 504 flushes the swirl mechanism 6, and the second atomizing nozzle 505 flushes the mist distribution plate 102; When flushing the swirl mechanism 6, the shaft at the output end is driven to rotate by the servo motor 9, and the rotating shaft drives the transmission mechanism 7 to rotate through the bevel gear assembly 901. The rotating transmission mechanism 7 drives the blades 605 in the swirl mechanism 6 to flip. Specifically, the servo motor 9 is energized to drive the transmission shaft 701 to rotate through the shaft and the bevel gear assembly 901. The rotating transmission shaft 701 drives the spiral blades 704 to rotate and drives the face gear disc 603 to rotate through the fixed disc frame 703; the rotating spiral blades 704 clean the sediment adhered to the inner wall of the desulfurization tower 1; the rotating face gear disc 603 drives multiple annularly arranged flip bevel gears 604 to rotate at the same time, driving the corresponding blades 605 to flip synchronously, so as to facilitate the adjustment of the angle of the blade 605 to control the exhaust gas flow rate and the direction of the exhaust gas, and adjust the upper and lower positions of the blade surface by flipping the blade 605 to facilitate the cleaning of the blade 605.

[0025] like Figures 2 to 4 As shown, a servo motor 9 is fixedly installed on one side of the desulfurization tower 1. A shaft extending into the interior of the desulfurization tower 1 is fixedly installed on the output end of the servo motor 9. The end of the shaft close to the transmission shaft 701 is connected to the transmission shaft 701 through a bevel gear assembly 901. It should be noted that the servo motor 9 is used to provide power, and the shaft extending into the interior of the desulfurization tower 1 serves as a carrier for power transmission, transmitting the power of the servo motor 9 to the bevel gear assembly 901, which in turn transmits the power to the transmission mechanism 7 through the bevel gear assembly 901, and transmits the power to the swirl mechanism 6 through the transmission mechanism 7.

[0026] like Figure 10As shown, the dust removal mechanism 2 includes a cyclone separator 201 fixedly installed on the other side of the desulfurization tower 1. A diffusion pipe 202 is installed through one end of the cyclone separator 201. A throat pipe 205 is installed through one end of the diffusion pipe 202 through a water inlet plate 203. A contraction pipe is installed through one end of the throat pipe 205. A water inlet valve 204 is installed through the bottom of the water inlet plate 203. One side of the water inlet plate 203 is connected to the throat pipe 205 through eight branch pipes. It should be noted that a spiral structure is provided inside the cyclone separator 201. The cyclone separator 201 is mainly used to capture large particles of dust in the exhaust gas, and effectively reduce the dust concentration in the exhaust gas through its centrifugal separation effect; the diffuser 202 plays a role in changing the direction of the airflow and reducing the airflow speed, so that the gas enters the cyclone separator 201 more evenly; the water inlet plate 203 controls the water supply to the throat pipe 205 through the water inlet valve 204 at the bottom to ensure uniform mixing of gas and liquid. At the same time, the eight branches on one side of the water inlet plate 203 are connected to the throat pipe 205, which can evenly distribute the water flow to the throat pipe 205 and improve the treatment effect.

[0027] A process for a desulfurization purification device based on industrial waste gas treatment comprises the following steps: Step 1: The exhaust gas enters the throat pipe 205 at high speed through the contraction tube. Its high speed makes the exhaust gas have strong kinetic energy, which is conducive to full collision with the water mist entering the throat pipe 205; at the same time, water enters the water inlet plate 203 through the water inlet valve 204, and the water inside the water inlet plate 203 enters the throat pipe 205 through eight branches, colliding with the high-speed exhaust gas to form a large number of high-speed droplets. The droplets are transported to the inside of the cyclone separator 201 through the diffusion tube 202. The cyclone separator 201 is provided with a spiral structure inside, which can make the dust and droplets in the exhaust gas form larger particulate matter during high-speed rotation, so that they settle down by gravity, achieving an efficient dust removal effect. The large particles are settled, so that the exhaust gas is dust-free. The diffusion tube 202 is responsible for reducing the flow rate of the dust-free exhaust gas and transporting it to the inside of the desulfurization tower 1 for desulfurization; Step 2: The exhaust gas passing through the cyclone separator 201 carries a small amount of mist droplets into the desulfurization tower 1. The exhaust gas is evenly distributed and raised by the mist distribution plate 102, and water vapor in the exhaust gas is also intercepted. The water vapor gathers into water droplets at the bottom of the mist distribution plate 102 and falls into the solid-liquid separation mechanism 8. When the exhaust gas rises to the position of the transmission mechanism 7, the spiral blades 704 are used to spirally guide the exhaust gas, causing the exhaust gas to spirally rise, slowing its flow rate, and prolonging the residence time of the exhaust gas in the desulfurization tower 1, thereby more effectively performing the desulfurization reaction; Step 3: Simultaneously drive the atomizing mechanism 5 to open the control valves corresponding to the first atomizing nozzle 504 and the second atomizing nozzle 505. The reaction liquid inside the collection box 3 is extracted by the water pump 501. The extracted reaction liquid is distributed to the first atomizing nozzle 504 and the second atomizing nozzle 505 through the branch pipe 502. The atomized reaction liquid is sprayed out at the second atomizing nozzle 505 and fully contacts the rising exhaust gas. The atomized reaction liquid can effectively react with the sulfide in the exhaust gas to desulfurize, thereby achieving exhaust gas purification. Step 4: As the exhaust gas continues to rise through the cyclone mechanism 6, the inclined blades 605 guide the exhaust gas, giving the exhaust gas a tangential velocity, thereby generating a rotational motion. The rotational motion causes the exhaust gas to form a spiral trajectory in the tower, forming a spiral upward flow field in the absorption tower, extending the residence time of the exhaust gas in the tower and increasing the contact opportunity with the atomized reaction liquid sprayed by the first atomizing nozzle 504, further desulfurizing the sulfides in the exhaust gas, thereby improving the sulfide removal efficiency and ultimately achieving a full desulfurization effect; Step 5: The desulfurized exhaust gas continues to rise and passes through the demister 101. The demister 101 effectively intercepts the water mist and particles in the exhaust gas. The desulfurized exhaust gas is transported to the next treatment process through the outlet pipe on the top side of the desulfurization tower 1. Step 6: When the liquid is recovered for recycling, the solid-liquid separation mechanism 8 is started to separate the collected reaction liquid into solid and liquid, so that the recovered reaction liquid can be adjusted in concentration and reused, thereby achieving the purpose of reaction liquid circulation. Specifically, the reciprocating screw 805 is driven to rotate by the driving motor 804. The rotating reciprocating screw 805 drives the two extrusion plates 803 to move relative to each other through the wire sleeve. The relatively moving extrusion plates 803 drive the filter bag 802 to fold, and the reaction liquid inside the filter bag 802 is squeezed. The squeezed liquid falls into the interior of the collection box 3 through the filter bag 802 for collection. When discharging the separated solid, the driving mechanism 4 is started to open the discharge valve plate 807 through the rack 808, and the toothed valve plate 302 is opened at the same time. The solid enters the solid discharge pipe 806 and is guided to the solid discharge port 301 and discharged from the interior of the solid discharge pipe 806. The solid-liquid separation of the reaction liquid is achieved, as well as the concentration adjustment and reuse of the recovered reaction liquid, thereby achieving the purpose of recycling and improving resource utilization.

[0028] Based on the explanations and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A desulfurization and purification device based on industrial waste gas treatment, comprising a desulfurization tower (1), a cyclone mechanism (6), a transmission mechanism (7) and a solid-liquid separation mechanism (8), characterized in that: The invention also includes a collecting box (3) fixedly mounted on the bottom of the desulfurization tower (1), and a dust removal mechanism (2) fixedly mounted on one side of the desulfurization tower (1), wherein the cyclone mechanism (6) is fixedly mounted inside the desulfurization tower (1), and a transmission mechanism (7) is installed at the bottom of the cyclone mechanism (6), and the transmission mechanism (7) is rotatably mounted inside the desulfurization tower (1); the cyclone mechanism (6) includes a disc (601) fixedly mounted on the inner wall of the desulfurization tower (1), a mounting disc (602) is fixedly mounted at the center of the disc (601), a face gear disc (603) is rotatably mounted inside the mounting disc (602), and a plurality of flip bevel gears (604) arranged in an annular array are meshed and connected at the top of the face gear disc (603), and a ring is formed between the disc (601) and the mounting disc (602). The plurality of flip bevel gears (604) are arranged in a row and arranged in a row, and one end of the blade (605) is fixedly connected to one end of the flip bevel gear (604) via a shaft; the transmission mechanism (7) comprises a transmission shaft (701) fixedly mounted on the bottom of the flip bevel gear (604); two spiral blades (704) are fixedly mounted on the outer side of the transmission shaft (701) via two fixed disk racks (703); a cleaning scraper (702) is fixedly mounted on the outer side of the transmission shaft (701), and the cleaning scraper (702) is located below the fixed disk rack (703); the solid-liquid separation mechanism (8) is fixedly mounted inside the collection box (3); and a driving mechanism (4) extending to the interior is rotatably mounted on one side of the front of the collection box (3).

2. The desulfurization and purification device based on industrial waste gas treatment according to claim 1 is characterized in that: The solid-liquid separation mechanism (8) comprises a collecting pipe (801) fixedly mounted on the top wall of the collecting box (3), two filter bags (802) fixedly mounted on both sides of the collecting pipe (801), extrusion plates (803) fixedly mounted on opposite ends of the two filter bags (802), a wire sleeve embedded in the interior of the extrusion plate (803), a reciprocating screw (805) penetrating the interior of the wire sleeve, one end of the reciprocating screw (805) fixedly connected to the output end of the driving motor (804), and the driving motor (804) fixedly mounted on one side of the collecting box (3), a solid discharge pipe (806) fixedly mounted on the bottom of the collecting pipe (801), a discharge valve plate (807) movably mounted on the interior of the top of the solid discharge pipe (806), and a rack (808) fixedly mounted on one side of the discharge valve plate (807).

3. The desulfurization and purification device based on industrial waste gas treatment according to claim 1 is characterized in that: A solid discharge outlet (301) is fixedly installed on one side of the collecting box (3), the solid discharge outlet (301) is connected to the solid discharge pipe (806), and a toothed valve plate (302) is movably installed inside the solid discharge outlet (301).

4. The desulfurization and purification device based on industrial waste gas treatment according to claim 2 is characterized in that: The driving mechanism (4) comprises a servo motor (401) fixedly mounted on a front side of the collecting box (3); a synchronous pulley (402) is fixedly mounted on an output end of the servo motor (401); two ends of the synchronous pulley (402) are respectively fixedly connected to a first gear (403) and a second gear (404) via two shafts; the first gear (403) is meshedly connected to the toothed valve plate (302); and the second gear (404) is meshedly connected to the rack (808).

5. The desulfurization and purification device based on industrial waste gas treatment according to claim 1 is characterized in that: A demister (101) is fixedly installed at the top of the desulfurization tower (1), and a mist distribution plate (102) is fixedly installed at the bottom of the desulfurization tower (1).

6. The desulfurization and purification device based on industrial waste gas treatment according to claim 5 is characterized in that: An extended atomizing mechanism (5) is installed through the interior of the desulfurization tower (1), and the atomizing mechanism (5) includes a water pump (501) fixedly installed at the bottom of one side of the collecting box (3). The input end of the water pump (501) is connected to the collecting box (3) through a pipeline, and a branch pipe (502) is installed through the output end of the water pump (501). A backwashing nozzle (503), a first atomizing nozzle (504), and a second atomizing nozzle (505) are installed on one side of the branch pipe (502) through three control valves. The backwashing nozzle (503) is located below the demister (101), the first atomizing nozzle (504) is located above the swirl mechanism (6), and the second atomizing nozzle (505) is located above the mist distribution plate (102).

7. The desulfurization and purification device based on industrial waste gas treatment according to claim 1 is characterized in that: A servo motor (9) is fixedly mounted on one side of the desulfurization tower (1), and a shaft extending into the interior of the desulfurization tower (1) is fixedly mounted on the output end of the servo motor (9), and one end of the shaft close to the transmission shaft (701) is transmission-connected to the transmission shaft (701) via a bevel gear assembly (901).

8. The desulfurization and purification device based on industrial waste gas treatment according to claim 1 is characterized in that: The dust removal mechanism (2) comprises a cyclone separator (201) fixedly mounted on the other side of the desulfurization tower (1); a diffusion pipe (202) is installed through one end of the cyclone separator (201); a throat pipe (205) is installed through one end of the diffusion pipe (202) via a water inlet plate (203); a contraction pipe is installed through one end of the throat pipe (205); a water inlet valve (204) is installed through the bottom of the water inlet plate (203); and one side of the water inlet plate (203) is connected to the throat pipe (205) via eight branch pipes.

9. A process for a desulfurization purification device based on industrial waste gas treatment according to claims 1 to 8, characterized in that: The following steps are involved: Step 1: Exhaust gas enters the throat pipe (205) at high speed through the contraction tube, while water enters the water inlet plate (203) through the water inlet valve (204). Water inside the water inlet plate (203) enters the throat pipe (205) through eight branch pipes, collides with the high-speed exhaust gas to form droplets, and the droplets are transported to the inside of the cyclone separator (201) through the diffusion tube (202). The spiral structure inside the cyclone separator (201) collides with the droplets to form large particles that are settled down, thereby removing dust from the exhaust gas; Step 2: After the dust removal is completed, the waste gas enters the desulfurization tower (1), and the waste gas rises through the mist distribution plate (102). The mist distribution plate (102) evenly distributes the waste gas and also intercepts the water vapor in the waste gas. The water vapor gathers into water droplets at the bottom of the mist distribution plate (102) and falls into the solid-liquid separation mechanism (8). When the waste gas rises to the position of the transmission mechanism (7), the spiral blade (704) is used to guide the waste gas in a spiral direction, so that the waste gas spirally rises, thereby reducing the flow rate of the waste gas and prolonging the temporary residence time of the waste gas in the desulfurization tower (1); Step 3: Simultaneously drive the atomizing mechanism (5), correspondingly open the control valves corresponding to the first atomizing nozzle (504) and the second atomizing nozzle (505), extract the reaction liquid inside the collection box (3) through the water pump (501), and distribute the extracted reaction liquid to the first atomizing nozzle (504) and the second atomizing nozzle (505) through the branch pipe (502), and spray the reaction liquid through the second atomizing nozzle (505), so that the atomized reaction liquid fully contacts the rising exhaust gas, thereby performing a desulfurization reaction on the sulfide in the exhaust gas; Step 4: When the exhaust gas continues to rise and passes through the cyclone mechanism (6), the exhaust gas is guided by the inclined blades (605), and the exhaust gas is given a tangential velocity, thereby generating a rotational motion. The rotational motion causes the exhaust gas to form a spiral trajectory in the tower, forming a spiral upward flow field in the absorption tower, extending the residence time of the exhaust gas in the tower, and increasing the contact opportunity with the atomized reaction liquid sprayed out by the first atomizing nozzle (504), thereby further desulfurizing the sulfides in the exhaust gas and achieving a full desulfurization effect; Step 5: The desulfurized waste gas continues to rise and passes through the demister (101). The demister (101) effectively intercepts the water mist and particles in the waste gas. The desulfurized waste gas is transported to the next treatment process through the outlet pipe on the top side of the desulfurization tower (1); Step 6: When the liquid is recycled for reuse, the solid-liquid separation mechanism (8) is started to separate the collected reaction liquid into solid and liquid, so that the recovered reaction liquid can be adjusted for concentration and reused, thereby achieving the purpose of circulating the reaction liquid. Specifically, the reciprocating screw (805) is driven to rotate by the driving motor (804). The rotating reciprocating screw (805) drives the two extrusion plates (803) to move relative to each other through the wire sleeve. The relatively moving extrusion plates (803) drive the filter bag (802) to fold, squeezing the reaction liquid inside the filter bag (802). The squeezed liquid falls into the inside of the collection box (3) through the filter bag (802) for collection. When discharging the separated solid, the driving mechanism (4) is started to open the discharge valve plate (807) through the rack (808) and the toothed valve plate (302) at the same time. The solid enters the solid discharge pipe (806) and is guided to the solid discharge port (301) and discharged from the inside of the solid discharge pipe (806).

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