A desulfurization and purification device and process based on industrial waste gas treatment

Abstract

This invention relates to the field of waste gas treatment technology. It discloses a desulfurization and purification device and process for industrial waste gas treatment, including a desulfurization tower, a cyclone mechanism, a transmission mechanism, and a solid-liquid separation mechanism. It 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 tower. The technical solution of this invention utilizes the combined action of the spiral blades in the cyclone mechanism and the transmission mechanism to form a highly efficient rotating flow field, extending the residence time of the waste gas within the tower. This allows for more thorough contact between sulfides and the atomized reaction liquid, promoting the chemical reaction of the sulfides by the reaction solution, thereby achieving efficient sulfide removal and purification. The cyclone mechanism imparts tangential velocity to the waste gas through its internal inclined blades, causing it to rotate, thus forming a spiral upward flow field within the desulfurization tower. This extends the residence time of the waste gas, increases its contact opportunities with the atomized reaction liquid, facilitates sulfide absorption, and improves the desulfurization and purification effect.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a desulfurization and purification device and process based on industrial waste gas treatment. Background Technology

[0002] Existing industrial production processes generate a large amount of waste gas containing sulfides. If this waste gas is directly released into the atmosphere, it will seriously affect air quality and human health. The acid rain formed by the waste gas and rainwater will severely damage the growth of green plants and cause serious pollution to rivers, thus causing irreversible damage to the environment. Therefore, effectively purifying sulfur dioxide in industrial waste gas has become an urgent problem to be solved in the industrial sector.

[0003] The rotary counter-impact industrial waste gas desulfurization system and its process, with announcement number CN118491286B, has solved the technical drawbacks of waste gas and reaction liquid continuously moving downwards due to gravity after mixing and washing, resulting in short gas-liquid reaction time and insufficient mixing. Simultaneously, the liquid aggregates on the pipe wall surface during downward movement, leaving residues that negatively impact desulfurization efficiency and the normal operation of the device. However, in practical use, similar structures still have many defects. For example, during the waste gas desulfurization process, the waste gas has a short passage time through the purification tower, resulting in insufficient contact time between the waste gas and the purification liquid, affecting the effective reaction between the purification liquid and sulfides, and reducing the desulfurization effect.

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

[0005] To overcome the shortcomings of existing technologies, this invention proposes a desulfurization and purification device and process based on industrial waste gas treatment, in order to solve the problem that the waste gas has a short time to pass through the purification tower, resulting in insufficient contact time between the waste gas and the purification liquid, which affects the effective reaction between the purification liquid and sulfides and reduces the desulfurization effect.

[0006] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0007] 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. It 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 a transmission mechanism is rotatably installed at the bottom of the cyclone mechanism inside the desulfurization tower. The cyclone mechanism includes a disc fixedly installed on the inner wall of the desulfurization tower, with an installation disc fixedly installed at the center of the disc. A toothed disc is rotatably installed inside the installation disc, and the top of the toothed disc is meshed with an annular alignment mechanism. Multiple rotating bevel gears are distributed, and blades corresponding to the rotating bevel gears are arranged in a ring between the disc and the mounting plate. One end of the blade is fixedly connected to one end of the rotating bevel gear via a shaft. The transmission mechanism includes a transmission shaft fixedly installed at the bottom of the rotating bevel gears. Two spiral blades are fixedly installed on the outside of the transmission shaft via two fixed disc frames. A cleaning scraper is fixedly installed on the outside of the transmission shaft, and the cleaning scraper is located below the fixed disc frames. The solid-liquid separation mechanism is fixedly installed inside the collection tank. A drive mechanism extending into the inside is rotatably installed on one side of the front of the collection tank.

[0008] Preferably, the solid-liquid separation mechanism includes a collection pipe fixedly installed on the top wall of the collection tank, two filter bags fixedly installed on both sides of the collection pipe, and a squeezing plate fixedly installed at the opposite ends of the two filter bags. A threaded sleeve is embedded inside the squeezing plate, and a reciprocating screw is installed through the threaded sleeve. One end of the reciprocating screw is fixedly connected to the output end of a drive motor, and the drive motor is fixedly installed on one side of the collection tank. A solid discharge pipe is fixedly installed at the bottom of the collection pipe, and a discharge valve plate is movably installed inside the top of the solid discharge pipe. A rack is fixedly installed on one side of the discharge valve plate.

[0009] Preferably, a solid discharge port is fixedly installed on one side of the collection box, the solid discharge port is connected to the solid discharge pipe, and a toothed valve plate is movably installed inside the solid discharge port.

[0010] Preferably, the drive mechanism includes a servo motor fixedly installed on one side of the front of the collection box. A synchronous pulley is fixedly installed at the output end of the servo motor. The two ends of the synchronous pulley are fixedly connected to a first gear and a second gear respectively through two shafts. The first gear is meshed with a toothed valve plate, and the second gear is meshed with a rack.

[0011] Preferably, a demister is fixedly installed at the top inside the desulfurization tower, and a mist distribution plate is fixedly installed at the bottom inside the desulfurization tower.

[0012] Preferably, the desulfurization tower has an extended atomizing mechanism installed inside. The atomizing mechanism includes a water pump fixedly installed at the bottom of one side of the collection box. The input end of the water pump is connected to the collection box through a pipe, and the output end of the water pump is connected to a branch pipe. On one side of the branch pipe, a backwash nozzle, a first atomizing nozzle, and a second atomizing nozzle are respectively installed 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.

[0013] Preferably, a servo motor is fixedly installed on one side of the desulfurization tower, and a shaft extending into the desulfurization tower is fixedly installed at the output end of the servo motor. The end of the shaft near the transmission shaft is connected to the transmission shaft through a bevel gear assembly.

[0014] Preferably, the dust removal mechanism includes a cyclone separator fixedly installed on the other side of the desulfurization tower. A diffuser is installed through one end of the cyclone separator, and a throat is installed through one end of the diffuser via a water inlet plate. A contraction pipe is installed through one end of the throat. 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 via eight branch pipes.

[0015] A process for a desulfurization and purification device based on industrial waste gas treatment includes the following steps:

[0016] Step 1: Exhaust gas enters the throat at high speed through the contraction pipe, while water enters the inlet plate through the inlet valve. The water inside the inlet plate enters the throat through eight branch pipes, colliding with the high-speed exhaust gas to form droplets. The droplets are transported to the inside of the cyclone separator through the diffuser. The spiral structure inside the cyclone separator causes dust and droplets to collide and form large particles that are settled down, thus removing dust from the exhaust gas.

[0017] 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 as it rises, while also intercepting 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 guide the exhaust gas spirally upward, thereby reducing the flow rate of the exhaust gas and prolonging the residence time of the exhaust gas in the desulfurization tower.

[0018] Step 3: Simultaneously drive the atomizing mechanism and open the corresponding control valves of the first and second atomizing nozzles. The water pump extracts the reaction liquid from the collection box and distributes it to the first and second atomizing nozzles through branch pipes. The reaction liquid is then atomized and sprayed through the second atomizing nozzle. The atomized reaction liquid comes into full contact with the rising exhaust gas, thereby desulfurizing the sulfides in the exhaust gas.

[0019] Step 4: As the exhaust gas continues to rise through the swirl mechanism, the inclined blades guide the exhaust gas, imparting a tangential velocity that generates rotational motion. This rotational motion causes the exhaust gas to form a spiral trajectory within the tower, creating a spiral upward flow field. This prolongs the residence time of the exhaust gas within the tower and increases the contact opportunity with the atomized reaction liquid sprayed from the first atomizing nozzle, further desulfurizing the sulfides in the exhaust gas and achieving a thorough desulfurization effect.

[0020] Step 5: The desulfurized exhaust gas continues to rise and passes through the demister. The demister effectively intercepts water mist and particles in the exhaust gas. The desulfurized exhaust gas is then transported to the next processing stage through the exhaust pipe on one side of the top of the desulfurization tower.

[0021] Step Six: When recycling the liquid, activate the solid-liquid separation mechanism to separate the collected reaction liquid. This facilitates the adjustment of the concentration of the recycled reaction liquid for reuse, achieving the purpose of recycling the reaction liquid. Specifically, the reciprocating screw is driven by a drive motor to rotate. The rotating reciprocating screw drives two extrusion plates to move relative to each other through the screw sleeve. The relatively moving extrusion plates cause the filter bag to fold, squeezing the reaction liquid inside the filter bag. The squeezed liquid falls into the collection box through the filter bag for collection. When discharging the separated solids, activate the drive mechanism to open the feed valve plate through the rack and pinion, and simultaneously open the toothed valve plate. The solids enter the solid discharge pipe and are guided to the solid discharge outlet, where they are discharged from the solid discharge pipe.

[0022] The beneficial effects of this invention are:

[0023] The technical solution of this invention utilizes the combined action of the spiral blades in the swirling mechanism and the transmission mechanism to form a highly efficient rotating flow field, extending the residence time of the exhaust gas within the tower. This solves the problem of the short exhaust gas passage time in the purification tower, which affects the effective reaction between the purification liquid and sulfides. It ensures more thorough contact between the sulfides and the atomized reaction liquid, promoting the chemical reaction of the sulfides by the reaction solution, thereby achieving highly efficient sulfide removal and purification. Specifically, the spiral blades in the transmission mechanism guide the exhaust gas, causing it to spiral upwards, extending its residence time in the desulfurization tower, increasing the probability of contact with the reaction liquid, and improving purification efficiency. Furthermore, the swirling mechanism's internal... The inclined blades impart tangential velocity to the exhaust gas, causing it to rotate and thus forming a spiral upward flow field within the desulfurization tower. This further prolongs the residence time of the exhaust gas, increasing its contact with the atomized reaction liquid sprayed from the first atomizing nozzle, which is beneficial for the absorption of sulfides and improves the desulfurization and purification effect. The exhaust gas flow rate can be controlled and its direction changed by adjusting the blade angle in the swirling mechanism. The design of the flip-up blades facilitates cleaning of the back of the blades. The rotating drive shaft drives the spiral blades to rotate through the fixed disc frame. The rotating spiral blades automatically clean the deposits on the inner wall of the desulfurization tower, effectively improving the desulfurization and purification efficiency and maintenance convenience. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the desulfurization tower in this invention;

[0027] Figure 4 This is a schematic diagram showing the transmission connection between the transmission mechanism and the vortex mechanism in this invention;

[0028] Figure 5 This is a schematic diagram of the internal structure of the swirl mechanism in this invention;

[0029] Figure 6 This is a schematic diagram of the atomizing mechanism in the present invention;

[0030] Figure 7 This is a schematic diagram of the collection box structure in this invention;

[0031] Figure 8 This is a schematic diagram of the internal structure of the solid-liquid separation mechanism in this invention;

[0032] Figure 9 This is a schematic diagram of the drive mechanism structure in this invention;

[0033] Figure 10 This is a schematic diagram of the dust removal mechanism in this invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 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; 3. Collection box; 301. Solid discharge port; 302. Gear plate; 4. Drive mechanism; 401. Servo motor; 402. Synchronous pulley; 403. First gear; 404. Second gear; 5. Atomizing mechanism; 501. Water pump; 502. Branch pipe; 503. Backwash nozzle; 504. First atomizing nozzle; 505. Second... 6. Atomizing nozzle; 7. Swirl mechanism; 8. Disk; 9. Mounting disc; 10. Gear disc; 11. Reversing bevel gear; 12. Blade; 13. Transmission mechanism; 14. Transmission shaft; 15. Cleaning scraper; 16. Fixed disc frame; 17. Spiral blade; 18. Solid-liquid separation mechanism; 19. Collection pipe; 10. Filter bag; 11. Extrusion plate; 12. Drive motor; 13. Reciprocating screw; 14. Solid discharge pipe; 15. Discharge valve plate; 16. Rack; 17. Servo motor; 18. Bevel gear assembly. Detailed Implementation

[0036] The following will be combined with the appendix Figure 1 To be continued Figure 10 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0037] 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. It 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 transmission mechanism 7 is rotatably installed inside the desulfurization tower 1 at its bottom. The cyclone mechanism 6 includes a disc 601 fixedly installed on the inner wall of the desulfurization tower 1. An installation disc 602 is fixedly installed at the center of the disc 601, and a toothed disc 603 is rotatably installed inside the installation disc 602. Multiple rotating cones arranged in a ring are meshed with the top of the toothed disc 603. The gear 604, the disc 601 and the mounting plate 602 are arranged in a ring with blades 605 corresponding to multiple flip bevel gears 604, and one end of the blade 605 is fixedly connected to one end of the flip bevel gear 604 through a shaft; the transmission mechanism 7 includes a transmission shaft 701 fixedly installed at the bottom of the flip bevel gear 604, and two spiral blades 704 are fixedly installed on the outside of the transmission shaft 701 through two fixed plate frames 703 respectively. A cleaning scraper 702 is fixedly installed on the outside of the transmission shaft 701, and the cleaning scraper 702 is located below the fixed plate frame 703; the solid-liquid separation mechanism 8 is fixedly installed inside the collection box 3, and a drive mechanism 4 extending into the inside is rotatably installed on one side of the front of the collection box 3;

[0038] It should be noted that the desulfurization tower 1 is used to treat sulfides in industrial waste gas. The internal swirl mechanism 6 achieves efficient rotation of the waste gas, promotes full contact and reaction between sulfides and alkaline solution, thereby achieving desulfurization and purification. The spiral blade 704 in the transmission mechanism 7 guides the waste gas, causing the waste gas to spiral upward and prolong the residence time of the waste gas.

[0039] The centrifugal force generated by the swirl mechanism 6 causes the exhaust gas to form a spiral upward flow field within the desulfurization tower 1, extending the residence time of the exhaust gas within the tower. Specifically, the inclined blades 605 guide the exhaust gas, imparting a tangential velocity that generates rotational motion. This rotational motion causes the exhaust gas to form a spiral trajectory within the tower, extending its residence time in the purification tower and increasing its contact opportunities with the atomized reaction liquid sprayed from the first atomizing nozzle 504. This facilitates the absorption of sulfides and further enhances the purification effect.

[0040] Furthermore, the exhaust gas flow rate is controlled by adjusting the angle of the blades 605 in the swirl 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.

[0041] When adjusting the angle of the blades 605 in the cyclone mechanism 6, the servo motor 9 drives the transmission force to the transmission shaft 701 through the cooperation of the shaft and the bevel gear assembly 901, driving the transmission shaft 701 to rotate. The rotating transmission shaft 701 drives the spiral blades 704 to rotate, drives the cleaning scraper 702 to rotate, and drives the face gear disk 603 to rotate through the fixed disk frame 703. The rotating face gear disk 603 drives multiple ring-shaped and arranged rotating bevel gears 604 to rotate simultaneously, synchronously driving the corresponding blades 605 to rotate synchronously, adjusting the tilt angle of the blades 605, and facilitating the flipping and adjustment of the cleaning surface when cleaning the blades 605. While adjusting the angle of the blades 605, the rotating spiral blades 704 clean the inner wall of the desulfurization tower 1, achieving the effect of automatic cleaning, while the rotating drive cleaning scraper 702 cleans both sides of the mist distribution plate 102.

[0042] 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.

[0043] The dust removal mechanism 2 effectively removes particulate matter from the exhaust gas, improving the desulfurization effect. The solid-liquid separation mechanism 8 separates the solid suspended matter from the liquid in the wastewater, ensuring that the wastewater can be recycled. The collection 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 collection 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 delivers the high-concentration reaction liquid to the collection box 3 through the reaction liquid concentration regulating valve, thereby achieving the purpose of automatically adjusting the concentration inside the collection box 3 and realizing the circulation adaptation of the reaction liquid collected inside the collection box 3. The drive mechanism 4 drives the discharge valve plate 807 and the toothed valve plate 302 respectively, which facilitates the discharge of the separated solids.

[0044] like Figures 7 to 8 As shown, the solid-liquid separation mechanism 8 includes a collection pipe 801 fixedly installed on the top wall of the collection tank 3. Two filter bags 802 are fixedly installed on both sides of the collection pipe 801. An extrusion plate 803 is fixedly installed at the opposite ends of the two filter bags 802. A wire sleeve is embedded inside the extrusion plate 803. A reciprocating screw 805 is installed through the wire sleeve. One end of the reciprocating screw 805 is fixedly connected to the output end of the drive motor 804. The drive motor 804 is fixedly installed on one side of the collection tank 3. A solid discharge pipe 806 is fixedly installed at the bottom of the collection pipe 801. A discharge valve plate 807 is movably installed inside the top of the solid discharge pipe 806. A rack 808 is fixedly installed on one side of the discharge valve plate 807.

[0045] It should be noted that the collected liquid is transported to the filter bags 802 on both sides through the collection pipe 801. The two filter bags 802 initially filter the solid suspended matter in the liquid. Then, the drive motor 804 drives the reciprocating screw 805 to rotate. The rotating reciprocating screw 805 converts the rotational force into linear reciprocating movement through the screw sleeve, which drives the two extrusion plates 803 to move relative to each other and extrude the initially filtered solid suspended matter inside the filter bags 802, causing the solid suspended matter to separate from the liquid. The solid suspended matter falls into the collection box 3 through the filter bags 802 for collection. The separated solid suspended matter is driven by the drive mechanism 4 to open the discharge valve plate 807 and the toothed valve plate 302 respectively. The solid suspended matter falls into the solid discharge pipe 806 through the opened discharge valve plate 807. The solid suspended matter is discharged through the solid discharge outlet 301 of the opened toothed valve plate 302 through the inclined structure of the solid discharge pipe 806.

[0046] like Figures 7 to 8 As shown, a solid discharge port 301 is fixedly installed on one side of the collection box 3. The solid discharge port 301 is connected to the solid discharge pipe 806. A toothed valve plate 302 is movably installed inside the solid discharge port 301.

[0047] 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 toothed valve plate 302 can be installed inside the solid discharge port 301. By adjusting the position of the toothed valve plate 302, the solid discharge port 301 can be opened or closed, thereby controlling the discharge of solid waste.

[0048] like Figure 9 As shown, the drive mechanism 4 includes a servo motor 401 fixedly installed on one side of the front of the collection box 3. A synchronous pulley 402 is fixedly installed at the output end of the servo motor 401. The two ends of the synchronous pulley 402 are fixedly connected to the first gear 403 and the second gear 404 respectively 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.

[0049] It should be noted that when the servo motor 401 is powered on, it drives the synchronous pulley 402 to run. 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. By controlling the movement of the toothed valve plate 302, the opening or closing state of the solid discharge outlet 301 is controlled, which facilitates the control of solid waste discharge. The rotating second gear 404 drives the feeding valve plate 807 to move through the meshing rack 808. The movement of the feeding valve plate 807 controls the opening or closing state of the solid discharge pipe 806, which facilitates the control of solid suspended matter falling into the solid discharge pipe 806 through the open feeding valve plate 807.

[0050] like Figures 1 to 2 As shown, a demister 101 is fixedly installed at the top inside the desulfurization tower 1, and a mist distribution plate 102 is fixedly installed at the bottom inside the desulfurization tower 1.

[0051] It should be noted that the demister 101 removes fine droplets from the exhaust gas, preventing these droplets from being discharged with the exhaust gas, thereby reducing the adverse effects on subsequent equipment and the environment; the mist distribution plate 102 evenly disperses the rising exhaust gas, ensuring that the exhaust gas and the absorbent liquid are in full contact.

[0052] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, an atomizing mechanism 5 extends through the interior of the desulfurization tower 1. The atomizing mechanism 5 includes a water pump 501 fixedly installed at the bottom of one side of the collection box 3. The input end of the water pump 501 is connected to the collection box 3 through a pipe. The output end of the water pump 501 is connected through a branch pipe 502. On one side of the branch pipe 502, a backwash nozzle 503, a first atomizing nozzle 504, and a second atomizing nozzle 505 are respectively installed 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.

[0053] It should be noted that the water pump 501 is responsible for extracting and pressurizing the reaction liquid from the collection tank 3, and then transporting it to the three nozzles through the branch pipe 502; and controlling the three nozzles respectively according to the working status of the device through the corresponding control valves; 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 react with the sulfides in the exhaust gas; when the device is in cleaning operation, the control valves corresponding to the backwash nozzle 503, the first atomizing nozzle 504, and the second atomizing nozzle 505 are opened simultaneously, the backwash nozzle 503 transports the liquid to backwash the demister 101, the first atomizing nozzle 504 washes the swirl mechanism 6, and the second atomizing nozzle 505 washes the mist distribution plate 102; the first atomizing nozzle 501 controls the reaction liquid in the three nozzles according to the working status of the device; when the device is in desulfurization operation, the control valves corresponding to the backwash nozzle 503, the first atomizing nozzle 504, and the second atomizing nozzle 505 are opened simultaneously, the backwash nozzle 503 transports the liquid to backwash the demister 101, the first atomizing nozzle 504 washes the swirl mechanism 6, and the second atomizing nozzle 505 washes the mist distribution plate 102; when the device is in desulfurization operation, the control valves corresponding to the first atomizing nozzle 504, the first atomizing nozzle 505, and the second atomizing nozzle 505 control the reaction liquid in the three nozzles according to the working status of the device; when the device is in desulfurization When rinsing the cyclone mechanism 6, the output shaft is driven to rotate by the servo motor 9. 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 cyclone mechanism 6 to rotate. Specifically, when the servo motor 9 is powered on, it drives 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 the face gear disk 603 to rotate through the fixed disk frame 703. The rotating spiral blades 704 clean the deposits adhering to the inner wall of the desulfurization tower 1. The rotating face gear disk 603 drives multiple annularly arranged rotating bevel gears 604 to rotate simultaneously, driving the corresponding blades 605 to rotate synchronously. This facilitates the adjustment of the blade angle to control the exhaust gas flow rate and direction. The rotation of the blades 605 adjusts the up and down position of the blade surface, which is conducive to the cleaning of the blades 605.

[0054] 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 at the output end of the servo motor 9. The end of the shaft near the transmission shaft 701 is connected to the transmission shaft 701 through a bevel gear assembly 901.

[0055] It should be noted that the servo motor 9 is used to provide power, and the shaft extending into the desulfurization tower 1 serves as the power transmission carrier, 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, and finally to the swirl mechanism 6.

[0056] 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 diffuser 202 is installed through one end of the cyclone separator 201. A throat 205 is installed through one end of the diffuser 202 via a water inlet plate 203. A contraction pipe is installed through one end of the throat 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 205 through eight branch pipes.

[0057] It should be noted that the cyclone separator 201 has an internal spiral structure. The cyclone separator 201 is mainly used to capture large dust particles in the exhaust gas. Through its centrifugal separation action, it effectively reduces the dust concentration in the exhaust gas. The diffuser 202 changes the airflow direction and reduces 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 gas-liquid mixing. At the same time, the eight branch pipes on one side of the water inlet plate 203 are connected to the throat pipe 205, which can evenly distribute the water flow into the throat pipe 205 and improve the treatment effect.

[0058] A process for a desulfurization and purification device based on industrial waste gas treatment includes the following steps:

[0059] Step 1: The exhaust gas enters the throat 205 at high speed through the contraction pipe. The high speed gives the exhaust gas strong kinetic energy, which is conducive to full collision with the water mist entering the throat 205. At the same time, water enters the water inlet plate 203 through the water inlet valve 204. The water inside the water inlet plate 203 enters the throat 205 through eight branch pipes, colliding with the high-speed exhaust gas to form a large number of high-speed mist droplets. The mist droplets are transported to the cyclone separator 201 through the diffuser 202. The cyclone separator 201 has a spiral structure inside, which can make the dust and mist droplets in the exhaust gas form larger particulate matter during high-speed rotation, so that they settle down by gravity, achieving a highly efficient dust removal effect. The large particles are settled, and the exhaust gas is dust removed. The diffuser 202 is responsible for reducing the flow rate of the dust-removed exhaust gas and transporting it to the desulfurization tower 1 for desulfurization.

[0060] Step 2: The exhaust gas, carrying a small amount of mist droplets, enters the desulfurization tower 1 through the cyclone separator 201. The mist distribution plate 102 evenly distributes the exhaust gas upwards, while also intercepting the water vapor in the exhaust 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 exhaust gas rises to the position of the transmission mechanism 7, the spiral blade 704 guides the exhaust gas spirally upwards, slowing down its flow speed and prolonging the residence time of the exhaust gas in the desulfurization tower 1, thereby making the desulfurization reaction more effective.

[0061] Step 3: Simultaneously drive the atomizing mechanism 5 to open the corresponding control valves of the first atomizing nozzle 504 and the second atomizing nozzle 505. The water pump 501 extracts the reaction liquid inside the collection box 3. 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 comes into full contact with the rising exhaust gas. The atomized reaction liquid can effectively react with the sulfides in the exhaust gas to achieve desulfurization, thereby achieving the purification treatment of the exhaust gas.

[0062] Step 4: As the exhaust gas continues to rise through the swirl mechanism 6, the inclined blades 605 guide the exhaust gas, imparting a tangential velocity that generates rotational motion. This rotational motion causes the exhaust gas to form a spiral trajectory within the tower, creating a spiral upward flow field. This prolongs the residence time of the exhaust gas within the tower and increases the contact opportunity with the atomized reaction liquid sprayed from the first atomizing nozzle 504, further desulfurizing the sulfides in the exhaust gas and thus improving the sulfide removal efficiency, ultimately achieving a complete desulfurization effect.

[0063] Step 5: The desulfurized exhaust gas continues to rise and passes through the demister 101. The demister 101 effectively intercepts water mist and particles in the exhaust gas. The desulfurized exhaust gas is then transported to the next processing step through the exhaust pipe on one side of the top of the desulfurization tower 1.

[0064] Step Six: When recycling the liquid, the solid-liquid separation mechanism 8 is activated to separate the collected reaction liquid into solids and liquids. This facilitates the adjustment of the concentration of the recycled reaction liquid for reuse, achieving the purpose of recycling the reaction liquid. Specifically, the drive motor 804 drives the reciprocating screw 805 to rotate. The rotating reciprocating screw 805 drives two extrusion plates 803 to move relative to each other through the screw sleeve. The relatively moving extrusion plates 803 cause the filter bag 802 to fold, squeezing the reaction liquid inside the filter bag 802. The squeezed liquid falls into the collection box 3 through the filter bag 802 for collection. When discharging the separated solids, the drive mechanism 4 is activated to open the discharge valve plate 807 through the rack 808, and at the same time, the toothed valve plate 302 is opened. The solids enter the solid discharge pipe 806 and are guided to the solid discharge outlet 301, and discharged from the solid discharge pipe 806. This achieves solid-liquid separation of the reaction liquid, as well as concentration adjustment and reuse of the recycled reaction liquid, achieving the purpose of recycling and improving resource utilization.

[0065] Based on the explanations and teachings of the foregoing specification, those skilled in the art can 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 alterations to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A desulfurization 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: Also include fixedly installed in the desulfurization tower (1) bottom collecting box (3), and fixedly installed in the desulfurization tower (1) one side dust removal mechanism (2), the cyclone mechanism (6) is fixedly installed in the inside of the desulfurization tower (1), the bottom transmission mechanism (7) is installed in the cyclone mechanism (6), and the transmission mechanism (7) is rotatably installed in the inside of the desulfurization tower (1);The cyclone mechanism (6) includes a disc (601) fixedly installed in the inner wall of the desulfurization tower (1), a mounting disc (602) is fixedly installed in the inside center of the disc (601), a face gear (603) is rotatably installed in the inside of the mounting disc (602), a plurality of flip bevel gears (604) are engagedly connected to the top of the face gear (603) in annularly arranged, a plurality of blades (605) corresponding to the plurality of flip bevel gears (604) are arranged in annularly arranged between the disc (601) and the mounting disc (602), and one end of the blade (605) is fixedly connected with one end of the flip bevel gear (604) through a shaft rod;The transmission mechanism (7) includes a transmission shaft rod (701) fixedly installed at the bottom of the flip bevel gear (604), two spiral leaves (704) are fixedly installed on the outside of the transmission shaft rod (701) through two fixed disc racks (703), respectively, a cleaning scraper rod (702) is fixedly installed on the outside of the transmission shaft rod (701), and the cleaning scraper rod (702) is located below the fixed disc rack (703);The solid-liquid separation mechanism (8) is fixedly installed in the inside of the collecting box (3), and the driving mechanism (4) is rotatably installed on one side of the front of the collecting box (3) and extends to the inside.

2. A desulfurization and purification device based on industrial waste gas treatment according to claim 1, characterized in that: The solid-liquid separation mechanism (8) includes a collecting pipe (801) fixedly installed on the top wall of the collecting box (3), two filter cloth bags (802) are fixedly installed on the two sides of the collecting pipe (801), respectively, a pressing plate (803) is fixedly installed on the opposite end of each of the two filter cloth bags (802), a silk sleeve is embeddedly installed in the inside of the pressing plate (803), a reciprocating silk rod (805) is installed through the inside of the silk sleeve, one end of the reciprocating silk rod (805) is fixedly connected with the output end of a driving motor (804), the driving motor (804) is fixedly installed on one side of the collecting box (3), a solid discharge pipe (806) is fixedly installed at the bottom of the collecting pipe (801), a discharging valve plate (807) is movably installed in the inside of the top of the solid discharge pipe (806), and a rack (808) is fixedly installed on one side of the discharging valve plate (807).

3. A desulphurization purification device based on industrial exhaust gas treatment according to claim 2, 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 with the solid discharge pipe (806) in penetration, and a gear slot valve plate (302) is movably installed in the inside of the solid discharge outlet (301).

4. The desulfurization and purification device based on industrial waste gas treatment according to claim 3, characterized in that: The driving mechanism (4) includes a servo motor (401) fixedly installed on the front side of the collecting box (3), the output end of the servo motor (401) is fixedly installed with a synchronous pulley (402), the two ends of the synchronous pulley (402) are fixedly connected with a first gear (403) and a second gear (404) through two shaft rods respectively, and the first gear (403) is in meshing connection with the toothed groove valve plate (302), and the second gear (404) is in meshing connection with the rack (808).

5. A desulphurization purification device based on industrial exhaust gas treatment according to claim 4, characterized in that: The inside of the desulfurizing tower (1) is fixedly installed with a demister (101) at the top, and is fixedly installed with a mist distribution plate (102) at the bottom.

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

7. A desulphurization purification device based on industrial exhaust gas treatment according to claim 6, characterized in that: One side of the desulfurizing tower (1) is fixedly installed with a servo motor (9), the output end of the servo motor (9) is fixedly installed with a shaft rod extending into the inside of the desulfurizing tower (1), and the end of the shaft rod close to the transmission shaft rod (701) is in transmission connection with the transmission shaft rod (701) through a bevel gear assembly (901).

8. A desulphurization purification device based on industrial exhaust gas treatment according to claim 7, characterized in that: The dust removal mechanism (2) includes a cyclone separator (201) fixedly installed on the other side of the desulfurizing tower (1), one end of the cyclone separator (201) is installed through a diffusion pipe (202), one end of the diffusion pipe (202) is installed through a throat pipe (205) through a water inlet plate (203), one end of the throat pipe (205) is installed through a converging pipe, the bottom of the water inlet plate (203) is installed through a water inlet valve (204), and one side of the water inlet plate (203) is connected with the throat pipe (205) through eight branch pipes.

9. A process based on the desulphurization purification device of industrial waste gas treatment as claimed in claim 8, wherein, The method comprises the following steps: Step one: the exhaust gas enters the throat pipe (205) at high speed through the converging pipe, and the water enters the water inlet plate (203) through the water inlet valve (204), the water in the water inlet plate (203) enters the throat pipe (205) through eight branch pipes, collides with the high-speed exhaust gas to form mist droplets, the mist droplets are transported to the inside of the cyclone separator (201) through the diffusion pipe (202), and the dust and the mist droplets are collided to form large particles which are settled down through the spiral structure in the inside of the cyclone separator (201), and the exhaust gas is dusted. Step two: the exhaust gas after dust removal enters the inside of the desulfurization tower (1), the exhaust gas rises through the mist distribution plate (102), the mist distribution plate (102) uniformly distributes the exhaust gas upward, and also intercepts the water vapor in the exhaust gas, the water vapor is collected into water droplets at the bottom of the mist distribution plate (102) and falls into the inside of the solid-liquid separation mechanism (8), when the exhaust gas rises to the position of the transmission mechanism (7), the spiral guide is used to guide the exhaust gas by the spiral blade (704), so that the exhaust gas spirally rises, thereby reducing the flow rate of the exhaust gas and prolonging the residence time of the exhaust gas in the desulfurization tower (1); Step three: the atomizing mechanism (5) is driven at the same time, the corresponding control valves of the first atomizing nozzle (504) and the second atomizing nozzle (505) are opened, the reaction liquid in the collecting box (3) is extracted by the water pump (501), the extracted reaction liquid is sent to the first atomizing nozzle (504) and the second atomizing nozzle (505) through the branch pipe (502), the reaction liquid is atomized and sprayed by the second atomizing nozzle (505), the atomized reaction liquid fully contacts with the rising exhaust gas, thereby the sulfide in the exhaust gas is subjected to desulfurization reaction; Step four: when the exhaust gas continues to rise through the cyclone mechanism (6), the exhaust gas is given tangential velocity by the inclined blade (605), thereby the exhaust gas produces rotary motion, the rotary motion makes the exhaust gas form a spiral trajectory in the tower, a spiral upward flow field is formed in the absorption tower, the residence time of the exhaust gas in the tower is prolonged, the contact opportunity with the atomized reaction liquid sprayed by the first atomizing nozzle (504) is increased, the sulfide in the exhaust gas is subjected to further desulfurization reaction, and the effect of sufficient desulfurization is achieved; Step five: the exhaust gas after desulfurization continues to rise through the demister (101), the water mist and particles in the exhaust gas are effectively intercepted by the demister (101), the exhaust gas after desulfurization is transported to the next processing procedure through the gas outlet pipe on one side of the top of the desulfurization tower (1); Step six: when the recovered liquid is recycled, the solid-liquid separation mechanism (8) is started to separate the collected reaction liquid, the recovered reaction liquid is conveniently adjusted in concentration and reused, the purpose of reaction liquid circulation is achieved, the driving motor (804) drives the reciprocating screw rod (805) to rotate, the reciprocating screw rod (805) drives the two extrusion plates (803) to relatively move through the silk sleeve, the extrusion plates (803) relatively moving drive the filter cloth bag (802) to fold, the reaction liquid in the filter cloth bag (802) is extruded, the extruded liquid falls into the inside of the collecting box (3) for collection, when the separated solid is discharged, the driving mechanism (4) is started to open the discharge valve plate (807) through the rack (808), and the tooth groove valve plate (302) is opened at the same time, the solid enters the inside of the solid discharge pipe (806) and is guided to the solid discharge outlet (301), and the inside of the solid discharge pipe (806) is discharged.

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