A wet flue gas desulfurization device and desulfurization method thereof

Abstract

The present invention relates to the technical field of wet flue gas desulfurization, and in particular to a wet flue gas desulfurization device and a desulfurization method thereof, comprising a bottom box, a desulfurization mechanism installed on the top of the bottom box, the desulfurization mechanism comprising a desulfurization tower, the desulfurization tower fixedly installed on the top of the bottom box, the desulfurization tower being connected to the bottom box, an air inlet fixedly installed on the side of the desulfurization tower, the sliding plate slidably installed inside the desulfurization tower, a through hole is opened on the surface of the sliding plate, a plurality of through holes are provided, the electric fan is rotatably installed on the top of the sliding plate, a plurality of electric fans are provided, and a first threaded rod is fixedly installed on the bottom of the sliding plate. The present invention can scrape the inner wall of the desulfurization tower and also disturb the airflow inside the desulfurization tower through the setting of the desulfurization mechanism, so that the flue gas can pass through the absorption tower more smoothly, and evenly mix with the desulfurizer sprayed down, increase the contact area, and thus improve the absorption efficiency of sulfur dioxide.

Description

Technical Field

[0001] The invention relates to the technical field of wet flue gas desulfurization, in particular to a wet flue gas desulfurization device and a desulfurization method thereof. Background Art

[0002] Wet flue gas desulfurization utilizes a solution or slurry of an alkaline absorbent to absorb and treat sulfur-containing flue gas in a wet state, causing the sulfur dioxide in the flue gas to react chemically with the absorbent to generate substances such as sulfates or sulfites, thereby achieving the purpose of removing sulfur dioxide. Common absorbents include limestone, limestone slurry in the gypsum method, and ammonia water in the ammonia method.

[0003] However, the existing wet flue gas desulfurization process will produce gypsum precipitation, resulting in a large amount of dirt inside the desulfurization tower. The dirt gradually accumulates in the system and will clog the spraying device, filler and other components in the absorption tower, resulting in a reduction in the contact area between the absorbent and the flue gas, thereby reducing the desulfurization efficiency and failing to fully remove sulfur dioxide in the flue gas. As a result, the emitted flue gas may not meet environmental protection standards and cause pollution to the atmospheric environment. Summary of the invention

[0004] In order to make up for the above deficiencies, the present invention provides a wet flue gas desulfurization device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The present invention is achieved in that:

[0006] The present invention provides a wet flue gas desulfurization device, comprising a bottom box, a desulfurization mechanism is installed on the top of the bottom box, and the desulfurization mechanism comprises:

[0007] A desulfurization tower, wherein the desulfurization tower is fixedly installed on the top of the bottom box, the desulfurization tower is connected to the bottom box, and an air inlet is fixedly installed on the side of the desulfurization tower;

[0008] A sliding plate, the sliding plate is slidably installed inside the desulfurization tower, a through hole is opened on the surface of the sliding plate, and a plurality of through holes are provided;

[0009] An electric fan, the electric fan is rotatably mounted on the top of the sliding plate, and a plurality of the electric fans are provided. A first threaded rod is fixedly mounted on the bottom of the sliding plate, and a plurality of the first threaded rods are provided;

[0010] A second threaded rod, wherein the second threaded rod is fixedly mounted on the bottom of the sliding plate, a second threaded barrel is threadedly mounted on the surface of the second threaded rod, and the second threaded barrel penetrates into the interior of the bottom box and is rotatably connected to the bottom of the bottom box.

[0011] In one embodiment of the present invention, a first threaded barrel is threadedly installed on the surface of the first threaded rod, the first threaded barrel penetrates to the top of the inner cavity of the bottom box and is rotatably connected to the bottom box, a reciprocating motor is fixedly installed at the bottom of the bottom box, the output end of the reciprocating motor penetrates to the interior of the bottom box and is fixedly connected to the second threaded barrel, a main water pipe is fixedly installed inside the desulfurization tower, a spray head is fixedly installed on the surface of the main water pipe, and a plurality of spray heads are arranged, a filter plate is fixedly installed inside the desulfurization tower, and a plurality of filter plates are arranged, and a smoke exhaust port is fixedly installed on the top of the desulfurization tower.

[0012] In one embodiment of the present invention, a mixing mechanism is installed inside the bottom box, and the mixing mechanism includes a first gear, which is rotatably installed on the top of the inner cavity of the bottom box, and the first gear is fixedly connected to the first threaded cylinder. Two first gears are provided, and a first tooth plate is slidably installed on the top of the inner cavity of the bottom box. Two first tooth plates are provided, and both of the two first tooth plates are meshed with the first gear. A connecting column is fixedly installed on the bottom of the two first tooth plates, and a stirring plate is fixedly installed on the bottom of the connecting column. A stirring rod is fixedly installed on the surface of the second threaded cylinder, and a second tooth plate is fixedly installed on the side of the stirring plate. Second gears are rotatably installed on both sides of the inner cavity of the bottom box, and the second gears are meshed with the second tooth plates.

[0013] In one embodiment of the present invention, a separation mechanism is installed on the left side of the bottom box, and the separation mechanism includes a separation box, which is fixedly installed on the left side of the bottom box, and a separation cylinder is rotatably installed inside the separation box. A third gear is rotatably installed on the right side of the inner cavity of the separation box, and the third gear is fixedly connected to the second gear on the left. An L-shaped plate is slidably installed on the right side of the inner cavity of the separation box, and a first tooth groove is opened at the bottom of the L-shaped plate, and the first tooth groove is meshed with the third gear.

[0014] In one embodiment of the present invention, a first gear ring is fixedly installed on the surface of the separation cylinder, a second gear groove is opened on the side of the L-shaped plate, the second gear groove is meshed with the first gear ring, a bracket is fixedly installed inside the separation box, two brackets are provided, and a fourth gear is rotatably installed at the bottom of the two brackets, a third gear groove is opened on the top of the inner cavity of the separation cylinder, the third gear groove is meshed with the fourth gear, a fixing column is fixedly installed on the bottom of the fourth gear, and a scraper is fixedly installed on the surface of the fixing column.

[0015] In one embodiment of the present invention, a first water pump is fixedly installed on the top of the bottom box, a fixing plate is fixedly installed on the top of the bracket, a water spray port is fixedly installed on the side of the fixing plate, a water pipe is fixedly installed on the top of the first water pump, the first water pump is connected to the interior of the bottom box through the water pipe, and the water pipe extends to the top of the water spray port and is connected to the water spray port.

[0016] In one embodiment of the present invention, a preparation mechanism is installed at the rear of the bottom box, and the preparation mechanism includes a stirring box, which is fixedly installed at the rear of the bottom box, and a rotating shaft is rotatably installed inside the stirring box. Two rotating shafts are provided, and stirring columns are fixedly installed on the surfaces of the two rotating shafts. A storage box is fixedly installed on the top of the stirring box, and a second water pump is fixedly installed at the rear of the separation box, and the second water pump is connected to the interior of the stirring box through a water pipe. A third water pump is fixedly installed on the top of the bottom box, and the third water pump is connected to the stirring box through a water pipe. The water pipe extends to the interior of the desulfurization tower and is connected to the main water pipe.

[0017] In one embodiment of the present invention, a first pulley is rotatably installed on the right side of the mixing box, two first pulleys are provided, and the two first pulleys are connected by a belt, a support is fixedly installed on the rear part of the bottom box, a rotating rod is rotatably installed on the left part of the support, the rotating rod is fixedly connected to the front first pulley, the rotating rod extends to the right part of the support, and a first bevel gear is fixedly installed on the right end of the rotating rod.

[0018] In one embodiment of the present invention, a half gear is rotatably installed on the right side of the bottom box, and the half gear is fixedly connected to the second gear, a fifth gear is rotatably installed on the right side of the bottom box, a rotating disk is fixedly installed on the right part of the fifth gear, an eccentric plate is rotatably installed at the eccentric part of the rotating disk, a slide rail is fixedly installed on the right part of the bottom box, a slider is slidably installed inside the slide rail, the eccentric plate is rotatably connected to the slider, a connecting rod is fixedly installed on the rear part of the slider, a third threaded rod is fixedly installed on the end of the connecting rod, a slide cylinder is fixedly installed on the side of the bottom box, a third threaded cylinder is rotatably installed on the rear of the slide cylinder, the third threaded rod is threadedly connected to the third threaded cylinder, a second bevel gear is fixedly installed on the rear end of the third threaded cylinder, and the second bevel gear is meshed with the first bevel gear.

[0019] A wet flue gas desulfurization method is applicable to the above-mentioned wet flue gas desulfurization device, and the steps are as follows:

[0020] S1: Flue gas enters the desulfurization tower through the air inlet, and then the reciprocating motor is started, which can drive the second threaded cylinder to reciprocate, and then drive the second threaded rod to reciprocate up and down, and then make the sliding plate slide up and down;

[0021] S2: The sprayed lime slurry falls into the bottom box, and under the action of the sliding plate, the first threaded cylinder is driven to reciprocate, and then the first gear is driven to reciprocate. When the two first gears reciprocate, the desulfurized lime slurry can be stirred by the setting of the stirring plate and the stirring rod to prevent the lime slurry from precipitating at the bottom of the bottom box;

[0022] S3: Start the first water pump, the first water pump can extract the lime slurry inside the bottom box, and then spray the lime slurry into the separation cylinder through the water spray port for centrifugal separation, and the fourth gear can drive the scraper to rotate, so as to scrape off the gypsum remaining on the inner wall of the separation cylinder;

[0023] S4: The second gear can drive the half gear to reciprocate, so as to rotate the rotating shaft inside the mixing box, so as to intermittently stir the preparation of lime slurry;

[0024] S5: Fresh lime slurry is pumped into the main water pipe through the third water pump and sprayed into the desulfurization tower through the sprinkler head to achieve recycling.

[0025] The invention provides a wet flue gas desulfurization device, which has the following beneficial effects:

[0026] 1. Through the setting of the desulfurization mechanism, the inner wall of the desulfurization tower can be scraped and the airflow inside the desulfurization tower can be disturbed. After scraping off the dirt, the flue gas can pass through the absorption tower more smoothly and mix evenly with the sprayed desulfurizer, increasing the contact area and thus improving the absorption efficiency of sulfur dioxide. The airflow disturbance makes the flow of flue gas in the desulfurization tower more complex and unstable, increasing the contact opportunity and contact time between the flue gas and the desulfurizer, which helps to improve the reaction efficiency of pollutants such as sulfur dioxide and the desulfurizer, so that more sulfur oxides can be absorbed and removed, thereby significantly improving the desulfurization effect.

[0027] 2. Through the setting of the separation mechanism, the desulfurized lime slurry can be filtered. If too much gypsum accumulates in the system, it may cause equipment blockage, scaling and corrosion. Timely extraction of gypsum can reduce the occurrence of these problems and reduce the cost of equipment maintenance and repair.

[0028] 3. Through the setting of the preparation mechanism, the lime slurry required for desulfurization can always be freshly prepared. The freshly prepared lime slurry has a high content of calcium hydroxide and strong activity. In applications such as desulfurization, it can react more efficiently with acidic gases such as sulfur dioxide, thereby improving the desulfurization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the overall rear view structure provided for an embodiment of the present invention;

[0032] Figure 3 A schematic diagram of a front cross-sectional structure of a desulfurization tower provided in an embodiment of the present invention;

[0033] Figure 4 A schematic diagram of the internal structure of the bottom box provided in an embodiment of the present invention;

[0034] Figure 5 A schematic diagram of the structure of a hybrid mechanism provided in an embodiment of the present invention;

[0035] Figure 6 A schematic diagram of the separation mechanism structure provided in an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the structure of a preparation mechanism provided in an embodiment of the present invention;

[0037] Figure 8 A schematic diagram of an enlarged front cross-sectional structure of a preparation mechanism provided in an embodiment of the present invention;

[0038] Fig. 9 The embodiments of the present invention provide Figure 6 A schematic diagram of the enlarged structure of the middle part A;

[0039] Fig.10 The embodiments of the present invention provide Figure 6 The enlarged structural diagram of the middle B part;

[0040] Fig.11 The embodiments of the present invention provide Figure 7 Schematic diagram of the enlarged structure of part C in the middle.

[0041] In the figure: 1, bottom box; 2, desulfurization mechanism; 201, desulfurization tower; 202, air inlet; 203, sliding plate; 204, through hole; 205, electric fan; 206, first threaded rod; 207, second threaded rod; 208, second threaded barrel; 209, first threaded barrel; 210, reciprocating motor; 211, main water pipe; 212, sprinkler head; 213, filter plate; 214, smoke exhaust port; 3, mixing mechanism; 301, first gear; 302, first tooth plate; 303, connecting column; 304, stirring plate; 305, stirring rod; 306, second tooth plate; 307, second gear; 4, separation mechanism; 401, separation box; 402, separation barrel; 403, third gear; 404, L-shaped plate; 405, first tooth groove; 406, first tooth ring; 40 7. second tooth groove; 408. bracket; 409. fourth gear; 410. third tooth groove; 411. fixed column; 412. scraper; 413. first water pump; 414. fixed plate; 415. water nozzle; 416. water pipe; 5. preparation mechanism; 501. mixing box; 502. rotating shaft; 503. mixing column; 504. storage box; 505. second water pump; 506. first pulley; 507. support; 508. rotating rod; 509. half gear; 510. fifth gear; 511. rotating disk; 512. eccentric plate; 513. slide rail; 514. slide block; 515. connecting rod; 516. third threaded rod; 517. slide cylinder; 518. third threaded cylinder; 519. second bevel gear; 520. first bevel gear; 521. third water pump. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Reference Figure 1-Figure 11The present technical solution provides a wet flue gas desulfurization device, which specifically includes a bottom box 1, a desulfurization mechanism 2 is installed on the top of the bottom box 1, and the desulfurization mechanism 2 includes a desulfurization tower 201, a sliding plate 203, an electric fan 205 and a second threaded rod 207. The desulfurization tower 201 is fixedly installed on the top of the bottom box 1, and the desulfurization tower 201 is connected to the bottom box 1. An air inlet 202 is fixedly installed on the side of the desulfurization tower 201, and the flue gas enters the interior of the desulfurization tower 201 through the air inlet 202. The sliding plate 203 is slidably installed in the interior of the desulfurization tower 201, and the sliding plate 203 can slide up and down in the interior of the desulfurization tower 201. The up and down sliding of the sliding plate 203 can remove the dirt remaining on the inner wall of the inner cavity of the desulfurization tower 201. The airflow inside the desulfurization tower 201 is disturbed and the flue gas is scraped off and disturbed at the same time, making the flow of flue gas inside the desulfurization tower 201 more complicated, increasing the contact time between flue gas and lime slurry, and helping to improve the reaction efficiency between pollutants such as sulfur dioxide and lime slurry. A through hole 204 is provided on the surface of the sliding plate 203, and a plurality of through holes 204 are provided. The lime slurry will stay on the surface of the sliding plate 203 for a period of time and fall through the through holes 204. The residence time of the lime slurry can increase the reaction time between the flue gas and the lime slurry. The electric fan 205 is rotatably installed on the top of the sliding plate 203, and a plurality of electric fans 205 are provided. The airflow generated by the electric fan 205 can make the flue gas more evenly distributed in the desulfurization tower 201. The airflow generated by the electric fan 205 can prevent dirt particles from adhering to and depositing on the inner wall of the desulfurization tower 201. The impact force of the airflow can make it difficult for dirt to form a solid scaling layer, thereby reducing the occurrence of scaling, reducing equipment maintenance costs and downtime risks. A first threaded rod 206 is fixedly installed on the bottom of the sliding plate 203. A plurality of first threaded rods 206 are provided. A second threaded rod 207 is fixedly installed on the bottom of the sliding plate 203. A second threaded barrel 208 is threadedly installed on the surface of the second threaded rod 207. The second threaded barrel 208 penetrates into the interior of the bottom box 1 and is rotatably connected to the bottom of the bottom box 1. A first threaded barrel 209 is threadedly installed on the surface of the first threaded rod 206. The first threaded barrel 20 9 penetrates to the top of the inner cavity of the bottom box 1 and is rotatably connected to the bottom box 1, a reciprocating motor 210 is fixedly installed at the bottom of the bottom box 1, the output end of the reciprocating motor 210 penetrates to the interior of the bottom box 1 and is fixedly connected to the second threaded cylinder 208, a main water pipe 211 is fixedly installed inside the desulfurization tower 201, a spray head 212 is fixedly installed on the surface of the main water pipe 211, and a plurality of spray heads 212 are arranged, a filter plate 213 is fixedly installed inside the desulfurization tower 201, the filter plate 213 can filter impurities in the flue gas after desulfurization, and a plurality of filter plates 213 are arranged, a smoke exhaust port 214 is fixedly installed on the top of the desulfurization tower 201, and the clean flue gas after filtration and desulfurization is discharged into the air through the smoke exhaust port 214.

[0044] Reference Figure 1-Figure 11, the present embodiment further proposes that a mixing mechanism 3 is installed inside the bottom box 1, and the mixing mechanism 3 includes a first gear 301, the first gear 301 is rotatably installed on the top of the inner cavity of the bottom box 1, the first gear 301 is fixedly connected to the first threaded cylinder 209, when the sliding plate 203 moves up and down inside the desulfurization tower 201, it can drive the first threaded cylinder 209 to rotate back and forth, and then drive the first gear 301 to rotate back and forth, there are two first gears 301, a first tooth plate 302 is slidably installed on the top of the inner cavity of the bottom box 1, the first tooth plates 302 are provided with two, the two first tooth plates 302 are meshed with the first gear 301, when the two first gears 301 rotate back and forth, it can drive the two first tooth plates 302 to slide back and forth on the top of the inner cavity of the bottom box 1, the bottom of the two first tooth plates 302 is fixedly installed with A connecting column 303, a stirring plate 304 is fixedly installed at the bottom of the connecting column 303, a stirring rod 305 is fixedly installed on the surface of the second threaded barrel 208, a second tooth plate 306 is fixedly installed on the side of the stirring plate 304, and second gears 307 are rotatably installed on both sides of the inner cavity of the bottom box 1, and the second gears 307 are meshed with the second tooth plates 306. The reciprocating sliding of the first tooth plate 302 can drive the second tooth plate 306 to move back and forth, and then drive the second gear 307 to rotate back and forth. The reciprocating sliding of the two first tooth plates 302 can drive the stirring plate 304 to slide back and forth, and the reciprocating rotation of the second threaded barrel 208 can drive the stirring rod 305 to rotate back and forth. Through the arrangement of the stirring plate 304 and the stirring rod 305, the desulfurized lime slurry can be stirred to prevent the lime slurry from precipitating at the bottom of the bottom box 1.

[0045] Reference Figure 1-Figure 11, the present embodiment further proposes that a separation mechanism 4 is installed on the left side of the bottom box 1, and the separation mechanism 4 includes a separation box 401, the separation box 401 is fixedly installed on the left side of the bottom box 1, a separation cylinder 402 is rotatably installed inside the separation box 401, and a third gear 403 is rotatably installed on the right side of the inner cavity of the separation box 401, and the third gear 403 is fixedly connected to the left second gear 307. When the second gear 307 reciprocates under the action of the second tooth plate 306, the third gear 403 can be driven to reciprocate. An L-shaped plate 404 is slidably installed on the right side of the inner cavity of the separation box 401, and a first tooth groove 405 is opened at the bottom of the L-shaped plate 404. The first tooth groove 405 and the third gear 4 03 meshes with each other, a first tooth ring 406 is fixedly installed on the surface of the separation cylinder 402, a second tooth groove 407 is opened on the side of the L-shaped plate 404, and the second tooth groove 407 meshes with the first tooth ring 406. Through the setting of the L-shaped plate 404, when the third gear 403 reciprocates, it can drive the L-shaped plate 404 to slide reciprocatingly on the right side of the inner cavity of the separation box 401, and the reciprocating sliding of the L-shaped plate 404 can drive the separation cylinder 402 to reciprocate inside the separation box 401. The reciprocating rotation of the separation box 401 can centrifuge the lime slurry to separate the gypsum from the water. A bracket 408 is fixedly installed inside the separation box 401, and the bracket 408 There are two, and the bottom of the two brackets 408 are rotatably installed with a fourth gear 409, the top of the inner cavity of the separation cylinder 402 is provided with a third tooth groove 410, the third tooth groove 410 is meshed with the fourth gear 409, and the bottom of the fourth gear 409 is fixedly installed with a fixed column 411, and the surface of the fixed column 411 is fixedly installed with a scraper 412. When the separation cylinder 402 rotates, the third tooth groove 410 can be driven to rotate, and then the fourth gear 409 can be driven to rotate, and the rotation of the fourth gear 409 can drive the fixed column 411 to rotate, and the rotation of the fixed column 411 can drive the scraper 412 to rotate, so that the residual on the inner wall of the separation cylinder 402 can be cleaned. The gypsum is scraped off, and the scraped gypsum is discharged through the discharge port at the bottom of the separation box 401. A first water pump 413 is fixedly installed on the top of the bottom box 1, a fixed plate 414 is fixedly installed on the top of the bracket 408, a water spray port 415 is fixedly installed on the side of the fixed plate 414, a water pipe 416 is fixedly installed on the top of the first water pump 413, the first water pump 413 is connected with the interior of the bottom box 1 through the water pipe 416, the water pipe 416 extends to the top of the water spray port 415 and is connected with the water spray port 415, the first water pump 413 can extract the lime slurry inside the bottom box 1, and then spray the lime slurry into the interior of the separation cylinder 402 through the water spray port 415 for centrifugal separation.

[0046] Reference Figure 1-Figure 11, the present embodiment further proposes that a preparation mechanism 5 is installed at the rear of the bottom box 1, and the preparation mechanism 5 includes a mixing box 501, the mixing box 501 is fixedly installed at the rear of the bottom box 1, a rotating shaft 502 is rotatably installed inside the mixing box 501, two rotating shafts 502 are provided, and stirring columns 503 are fixedly installed on the surfaces of the two rotating shafts 502, a storage box 504 is fixedly installed on the top of the mixing box 501, the storage box 504 is connected to the mixing box 501, and the gate between the storage box 504 and the mixing box 501 is controlled by a pneumatic valve, and a second water pump 505 is fixedly installed at the rear of the separation box 401, and the second water pump 505 is connected to the inside of the mixing box 501 through a water pipe 416, and the second water pump 505 can pump the inside of the separation box 401 through the water pipe 416. The water separated and filtered is extracted, and the pneumatic valve can control the size of the gate, so as to control the falling speed of the lime stored in the storage box 504. The lime and water are stirred to form fresh lime slurry. A third water pump 521 is fixedly installed on the top of the bottom box 1. The third water pump 521 is connected to the mixing box 501 through a water pipe 416. The water pipe 416 extends to the interior of the desulfurization tower 201 and is connected to the main water pipe 211. The fresh lime slurry enters the interior of the main water pipe 211 through the third water pump 521, and is sprayed into the interior of the desulfurization tower 201 through the spray head 212. The right side of the mixing box 501 is rotatably installed with a first pulley 506. The first pulley 506 is provided with two, and the two first pulleys 506 The two first pulleys 506 are connected by belts, and are fixedly connected to the rotating shaft 502. A support 507 is fixedly installed on the rear part of the bottom box 1. A rotating rod 508 is rotatably installed on the left part of the support 507. The rotating rod 508 is fixedly connected to the front first pulley 506. The rotating rod 508 penetrates to the right part of the support 507. A first bevel gear 520 is fixedly installed on the right end of the rotating rod 508. A half gear 509 is rotatably installed on the right side of the bottom box 1. The half gear 509 is fixedly connected to the second gear 307. A fifth gear 510 is rotatably installed on the right side of the bottom box 1. The fifth gear 510 meshes with the half gear 509. A rotating disk 511 is fixedly installed on the right part of the fifth gear 510. An eccentric plate 520 is rotatably installed at the eccentric part of the rotating disk 511. 12. A slide rail 513 is fixedly installed on the right part of the bottom box 1, and a slider 514 is slidably installed inside the slide rail 513. The eccentric plate 512 is rotatably connected to the slider 514. A connecting rod 515 is fixedly installed on the rear of the slider 514. A third threaded rod 516 is fixedly installed on the end of the connecting rod 515. A slide cylinder 517 is fixedly installed on the side of the bottom box 1. A third threaded cylinder 518 is rotatably installed on the rear of the slide cylinder 517. The third threaded rod 516 is threadedly connected to the third threaded cylinder 518. A second bevel gear 519 is fixedly installed on the rear end of the third threaded cylinder 518. The second bevel gear 519 is meshed with the first bevel gear 520. When the second gear 307 reciprocates, the second gear 307 can drive the half gear 509 to reciprocate.The fifth gear 510 can be driven to rotate intermittently, and the rotating disk 511 can be driven to rotate intermittently, so that the eccentric plate 512 can be driven to rotate eccentrically. The eccentric rotation of the eccentric plate 512 can drive the slider 514 to slide back and forth inside the slide rail 513, and then the connecting rod 515 can be driven to reciprocate inside the slide cylinder 517. The reciprocating motion of the connecting rod 515 can drive the third threaded rod 516 to reciprocate inside the third threaded cylinder 518, so that the third threaded cylinder 518 can rotate back and forth, and the third threaded cylinder 518 can rotate back and forth. The reciprocating rotation can drive the second bevel gear 519 to rotate, thereby rotating the first bevel gear 520, and the rotation of the first bevel gear 520 can drive the rotating rod 508 to rotate, so that the first pulley 506 can rotate, thereby rotating the rotating shaft 502 inside the mixing box 501, so that the preparation of the lime slurry can be intermittently stirred. The reaction of lime and water will generate heat. Continuous stirring may cause local overheating. Intermittent stirring can give the heat time to dissipate, avoiding excessive local temperature, thereby reducing damage to the equipment and safety hazards.

[0047] Reference Figure 1-Figure 11 This embodiment also proposes a wet flue gas desulfurization method, which is applicable to the above-mentioned wet flue gas desulfurization device, and the steps are as follows:

[0048] S1: Flue gas enters the desulfurization tower 201 through the air inlet 202, and then the reciprocating motor 210 is started. The reciprocating motor 210 can drive the second threaded cylinder 208 to reciprocate, and then drive the second threaded rod 207 to reciprocate up and down, and then make the sliding plate 203 slide up and down;

[0049] S2: The sprayed lime slurry falls into the bottom box 1, and under the action of the sliding plate 203, the first threaded cylinder 209 is driven to reciprocate, and then the first gear 301 is driven to reciprocate. When the two first gears 301 reciprocate, the desulfurized lime slurry can be stirred by the setting of the stirring plate 304 and the stirring rod 305 to prevent the lime slurry from precipitating at the bottom of the bottom box 1;

[0050] S3: Start the first water pump 413, the first water pump 413 can extract the lime slurry inside the bottom box 1, and then spray the lime slurry into the interior of the separation cylinder 402 through the water spray port 415 for centrifugal separation, and the fourth gear 409 can drive the scraper 412 to rotate, so as to scrape off the gypsum remaining on the inner wall of the separation cylinder 402;

[0051] S4: The second gear 307 can drive the half gear 509 to reciprocate, so as to rotate the rotating shaft 502 inside the mixing box 501, so as to intermittently stir the preparation of the lime slurry;

[0052] S5: Fresh lime slurry is pumped into the main water pipe 211 through the third water pump 521, and is sprayed into the desulfurization tower 201 through the spray head 212 to achieve cyclic use.

[0053] Specifically, the working process or working principle of the wet flue gas desulfurization device is as follows: first, the flue gas enters the interior of the desulfurization tower 201 through the air inlet 202, then the electric valve is started to discharge the lime in the storage box 504, and then the reciprocating motor 210 is started. The reciprocating motor 210 can drive the second threaded cylinder 208 to reciprocate, and then drive the second threaded rod 207 to reciprocate up and down. The up and down reciprocating motion of the second threaded rod 207 can drive the sliding plate 203 to slide up and down inside the desulfurization tower 201, and the up and down sliding of the sliding plate 203 can drive the first threaded rod 206 to The up and down movement of the first threaded rod 206 can drive the first threaded cylinder 209 to rotate back and forth, and then start the third water pump 521. The third water pump 521 is connected to the mixing box 501 through the water pipe 416. The water pipe 416 extends to the interior of the desulfurization tower 201 and is connected to the main water pipe 211. Fresh lime slurry is drawn into the interior of the main water pipe 211 by the third water pump 521, and is sprayed into the interior of the desulfurization tower 201 through the spray head 212. The filter plate 213 can filter impurities in the flue gas after desulfurization, and the clean flue gas after filtration and desulfurization is discharged into the air through the exhaust port 214.

[0054] When the sliding plate 203 moves up and down inside the desulfurization tower 201, it can drive the first threaded barrel 209 to rotate back and forth, and the reciprocating sliding of the first tooth plate 302 can drive the second tooth plate 306 to move back and forth, and then drive the second gear 307 to rotate back and forth. The reciprocating sliding of the two first tooth plates 302 can drive the stirring plate 304 to slide back and forth, and the reciprocating rotation of the second threaded barrel 208 can drive the stirring rod 305 to rotate back and forth. Through the setting of the stirring plate 304 and the stirring rod 305, the desulfurized lime slurry can be stirred to prevent the lime slurry from precipitating at the bottom of the bottom box 1.

[0055] Start the first water pump 413, the first water pump 413 can extract the lime slurry inside the bottom box 1, and then spray the lime slurry into the interior of the separation cylinder 402 through the water spray port 415 for centrifugal separation. When the second gear 307 reciprocates under the action of the second tooth plate 306, it can drive the third gear 403 to reciprocate. When the third gear 403 reciprocates, it can drive the L-shaped plate 404 to slide reciprocally on the right side of the inner cavity of the separation box 401. The reciprocating sliding of the L-shaped plate 404 The separation cylinder 402 can be driven to rotate back and forth inside the separation box 401. The reciprocating rotation of the separation box 401 can perform centrifugal separation operation on the lime slurry. When the separation cylinder 402 rotates, the third tooth groove 410 can be driven to rotate, and then the fourth gear 409 can be driven to rotate. The rotation of the fourth gear 409 can drive the fixed column 411 to rotate. The rotation of the fixed column 411 can drive the scraper 412 to rotate, so as to scrape off the gypsum remaining on the inner wall of the separation cylinder 402.

[0056] The second gear 307 can drive the half gear 509 to rotate back and forth, and then drive the fifth gear 510 to rotate intermittently, and then drive the rotating disk 511 to rotate intermittently, so as to drive the eccentric plate 512 to rotate eccentrically, and the eccentric rotation of the eccentric plate 512 can drive the slider 514 to slide back and forth inside the slide rail 513, and then drive the connecting rod 515 to reciprocate inside the slide cylinder 517, and the reciprocating motion of the connecting rod 515 can drive the third threaded rod 516 to reciprocate inside the third threaded cylinder 518, so that the third threaded cylinder 518 reciprocates, and the reciprocating rotation of the third threaded cylinder 518 can drive the second bevel gear 519 to rotate, so as to rotate the first bevel gear 520, and the rotation of the first bevel gear 520 can drive the rotating rod 508 to rotate, so that the first pulley 506 can rotate, so as to rotate the rotating shaft 502 inside the mixing box 501, so that the preparation of lime slurry can be intermittently stirred.

Claims

1. A wet flue gas desulfurization device, comprising a bottom box (1), characterized in that: A desulfurization mechanism (2) is installed on the top of the bottom box (1), and the desulfurization mechanism (2) comprises: A desulfurization tower (201), the desulfurization tower (201) is fixedly mounted on the top of the bottom box (1), the desulfurization tower (201) is connected to the bottom box (1), and an air inlet (202) is fixedly mounted on the side of the desulfurization tower (201); A sliding plate (203), the sliding plate (203) being slidably mounted inside the desulfurization tower (201), a through hole (204) being provided on a surface of the sliding plate (203), and a plurality of through holes (204) being provided; An electric fan (205), the electric fan (205) being rotatably mounted on the top of the sliding plate (203), a plurality of the electric fans (205) being provided, a first threaded rod (206) being fixedly mounted on the bottom of the sliding plate (203), a plurality of the first threaded rods (206) being provided; A second threaded rod (207), the second threaded rod (207) being fixedly mounted on the bottom of the sliding plate (203), a second threaded barrel (208) being threadedly mounted on the surface of the second threaded rod (207), the second threaded barrel (208) penetrating into the interior of the bottom box (1) and being rotatably connected to the bottom of the bottom box (1); A first threaded barrel (209) is threadedly mounted on the surface of the first threaded rod (206), the first threaded barrel (209) penetrates to the top of the inner cavity of the bottom box (1) and is rotatably connected to the bottom box (1), a reciprocating motor (210) is fixedly mounted on the bottom of the bottom box (1), the output end of the reciprocating motor (210) penetrates to the inside of the bottom box (1) and is fixedly connected to the second threaded barrel (208), a main water pipe (211) is fixedly mounted inside the desulfurization tower (201), a spray head (212) is fixedly mounted on the surface of the main water pipe (211), a plurality of the spray heads (212) are provided, a filter plate (213) is fixedly mounted inside the desulfurization tower (201), a plurality of the filter plates (213) are provided, and a smoke exhaust port (214) is fixedly mounted on the top of the desulfurization tower (201); A mixing mechanism (3) is installed inside the bottom box (1), and the mixing mechanism (3) comprises a first gear (301), the first gear (301) is rotatably installed on the top of the inner cavity of the bottom box (1), the first gear (301) is fixedly connected to the first threaded cylinder (209), two first gears (301) are provided, and a first toothed plate (302) is slidably installed on the top of the inner cavity of the bottom box (1), two first toothed plates (302) are provided, and the two first toothed plates (302) are both connected to the first gear (301). (301) are meshed with each other, a connecting column (303) is fixedly installed at the bottom of the two first tooth plates (302), a stirring plate (304) is fixedly installed at the bottom of the connecting column (303), a stirring rod (305) is fixedly installed on the surface of the second threaded cylinder (208), and a second tooth plate (306) is fixedly installed on the side of the stirring plate (304), and second gears (307) are rotatably installed on both sides of the inner cavity of the bottom box (1), and the second gears (307) are meshed with the second tooth plates (306); A separation mechanism (4) is installed on the left side of the bottom box (1), and the separation mechanism (4) comprises a separation box (401). The separation box (401) is fixedly installed on the left side of the bottom box (1), and a separation cylinder (402) is rotatably installed inside the separation box (401). A third gear (403) is rotatably installed on the right side of the inner cavity of the separation box (401), and the third gear (403) is fixedly connected to the left second gear (307). An L-shaped plate (404) is slidably installed on the right side of the inner cavity of the separation box (401), and a first tooth groove (405) is provided at the bottom of the L-shaped plate (404), and the first tooth groove (405) is meshed with the third gear (403).

2. A wet flue gas desulfurization device according to claim 1, characterized in that: A first tooth ring (406) is fixedly installed on the surface of the separation cylinder (402), a second tooth groove (407) is provided on the side of the L-shaped plate (404), and the second tooth groove (407) is meshed with the first tooth ring (406), a bracket (408) is fixedly installed inside the separation box (401), two brackets (408) are provided, and a fourth gear (409) is rotatably installed at the bottom of the two brackets (408), a third tooth groove (410) is provided at the top of the inner cavity of the separation cylinder (402), and the third tooth groove (410) is meshed with the fourth gear (409), a fixing column (411) is fixedly installed on the bottom of the fourth gear (409), and a scraper (412) is fixedly installed on the surface of the fixing column (411).

3. A wet flue gas desulfurization device according to claim 2, characterized in that: A first water pump (413) is fixedly mounted on the top of the bottom box (1); a fixing plate (414) is fixedly mounted on the top of the bracket (408); a water spray port (415) is fixedly mounted on the side of the fixing plate (414); a water pipe (416) is fixedly mounted on the top of the first water pump (413); the first water pump (413) is connected to the interior of the bottom box (1) via the water pipe (416); and the water pipe (416) extends to the top of the water spray port (415) and is connected to the water spray port (415).

4. A wet flue gas desulfurization device according to claim 3, characterized in that: A preparation mechanism (5) is installed at the rear of the bottom box (1), and the preparation mechanism (5) comprises a stirring box (501). The stirring box (501) is fixedly installed at the rear of the bottom box (1), and a rotating shaft (502) is rotatably installed inside the stirring box (501). Two rotating shafts (502) are provided, and stirring columns (503) are fixedly installed on the surfaces of the two rotating shafts (502). A storage box (503) is fixedly installed on the top of the stirring box (501). 4), a second water pump (505) is fixedly installed at the rear of the separation box (401), and the second water pump (505) is connected to the interior of the mixing box (501) through a water pipe (416); a third water pump (521) is fixedly installed on the top of the bottom box (1), and the third water pump (521) is connected to the mixing box (501) through a water pipe (416); the water pipe (416) extends to the interior of the desulfurization tower (201) and is connected to the main water pipe (211).

5. A wet flue gas desulfurization device according to claim 4, characterized in that: A first pulley (506) is rotatably mounted on the right side of the mixing box (501), two first pulleys (506) are provided, and the two first pulleys (506) are connected by a belt, a support (507) is fixedly mounted on the rear of the bottom box (1), a rotating rod (508) is rotatably mounted on the left side of the support (507), the rotating rod (508) is fixedly connected to the front first pulley (506), the rotating rod (508) passes through the right side of the support (507), and a first bevel gear (520) is fixedly mounted on the right end of the rotating rod (508).

6. A wet flue gas desulfurization device according to claim 5, characterized in that: A half gear (509) is rotatably mounted on the right side of the bottom box (1), and the half gear (509) is fixedly connected to the second gear (307). A fifth gear (510) is rotatably mounted on the right side of the bottom box (1), and a rotating disk (511) is fixedly mounted on the right side of the fifth gear (510). An eccentric plate (512) is rotatably mounted at the eccentric portion of the rotating disk (511). A slide rail (513) is fixedly mounted on the right side of the bottom box (1), and a slider (514) is slidably mounted inside the slide rail (513). The eccentric plate (512) and the slider (514) are rotatably mounted on the inside of the slide rail (513). The sliding block (514) is rotatably connected, a connecting rod (515) is fixedly mounted on the rear of the sliding block (514), a third threaded rod (516) is fixedly mounted on the end of the connecting rod (515), a sliding cylinder (517) is fixedly mounted on the side of the bottom box (1), a third threaded cylinder (518) is rotatably mounted on the rear of the sliding cylinder (517), the third threaded rod (516) is threadably connected to the third threaded cylinder (518), a second bevel gear (519) is fixedly mounted on the rear end of the third threaded cylinder (518), and the second bevel gear (519) is meshed with the first bevel gear (520).

7. A wet flue gas desulfurization method, applicable to a wet flue gas desulfurization device as claimed in claim 6, characterized in that: Here are the steps: S1: Flue gas enters the desulfurization tower (201) through the air inlet (202), and then the reciprocating motor (210) is started, the reciprocating motor (210) drives the second threaded cylinder (208) to reciprocate, thereby driving the second threaded rod (207) to reciprocate up and down, thereby causing the sliding plate (203) to slide up and down; S2: the sprayed lime slurry falls into the interior of the bottom box (1), and under the action of the sliding plate (203), drives the first threaded cylinder (209) to rotate back and forth, thereby driving the first gear (301) to rotate back and forth. When the two first gears (301) rotate back and forth, the desulfurized lime slurry is stirred by the arrangement of the stirring plate (304) and the stirring rod (305), thereby preventing the lime slurry from precipitating at the bottom of the bottom box (1); S3: starting the first water pump (413), the first water pump (413) extracts the lime slurry from the bottom box (1), and then sprays the lime slurry into the interior of the separation cylinder (402) through the water spray port (415) for centrifugal separation, and the fourth gear (409) drives the scraper (412) to rotate, thereby scraping off the gypsum remaining on the inner wall of the separation cylinder (402); S4: the second gear (307) drives the half gear (509) to reciprocate, thereby rotating the rotating shaft (502) inside the mixing box (501), thereby intermittently stirring the lime slurry; S5: Fresh lime slurry is pumped into the main water pipe (211) through the third water pump (521), and is sprayed into the desulfurization tower (201) through the spray head (212) to achieve cyclic use.

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