Flue gas desulfurization processor with waste heat recovery function

Abstract

The invention relates to the technical field of flue gas treatment devices, and discloses a flue gas desulfurization treatment device with a waste heat recovery function, which comprises a mounting plate, a flow regulating mechanism, a waste heat recovery mechanism and an automatic cleaning mechanism, a reaction kettle is fixedly arranged at the top of the left side of the mounting plate, the reaction kettle is in a cylinder-like shape, a liquid accumulation cavity is formed in the bottom of the inner side of the reaction kettle, and a spraying cavity is formed in the top of the liquid accumulation cavity. According to the flue gas desulfurization processor with the waste heat recovery function, self-adjustment of flue gas flow and spraying liquid flow can be achieved through the flow adjusting mechanism, so that the input quantity of the flue gas desulfurization processor and the spraying liquid flow is always and synchronously kept in the proportion with the highest reaction efficiency, the reaction effect is improved, multi-stage waste heat recovery can be conducted on high-temperature flue gas during treatment, and the treatment effect is improved. And meanwhile, the interior of the reaction kettle can be cleaned, the inner wall of the device is prevented from being condensed and corroded by impurities in the flue gas, and meanwhile, a pipeline is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas processors, and in particular to a flue gas desulfurization processor with a waste heat recovery function. Background Art

[0002] Flue gas desulfurization processor is an important waste gas treatment equipment. Its main function is to remove harmful gases such as sulfur dioxide (SO2) from industrial flue gas to reduce pollution to the atmospheric environment. The working principles of flue gas desulfurization processors are varied, and the common ones include wet desulfurization, dry desulfurization and semi-dry desulfurization. Wet desulfurization mainly uses absorbents such as limestone slurry and sodium hydroxide solution to react chemically with SO2 in flue gas to produce harmless substances such as sulfates. Wet desulfurization technology is mature and has high desulfurization efficiency, but the operating cost is relatively high. The specific process includes steps such as flue gas pretreatment, absorbent injection, oxidation reaction, gypsum reaction and dehydration treatment.

[0003] Flue gas desulfurization processors are widely used in waste gas treatment in industrial fields such as power, chemical, steel, cement, etc. These industries will produce a large amount of sulfur-containing flue gas during the production process. If desulfurization is not carried out, it will cause serious pollution to the atmospheric environment. By installing a flue gas desulfurization processor, harmful gases such as SO2 in the flue gas can be effectively removed to meet national emission standards and protect the atmospheric environment.

[0004] The existing flue gas desulfurization processor is difficult to control the input ratio of spray liquid to flue gas, which easily leads to inadequate reaction and inability to fully recover the heat of flue gas. Impurities in the flue gas are easily condensed on the inner wall of the device, causing the inner wall of the device to be corroded and causing pipeline blockage. Therefore, a flue gas desulfurization processor with waste heat recovery function is proposed. Summary of the invention

[0005] The present invention aims to solve the technical problem that it is difficult to control the input ratio of spray liquid to flue gas in the existing flue gas desulfurization processor, which easily leads to insufficient reaction and inability to fully recover the heat of the flue gas. Impurities in the flue gas are easily condensed on the inner wall of the device, causing corrosion of the inner wall of the device and causing blockage of the pipeline. A flue gas desulfurization processor with waste heat recovery function is provided.

[0006] The technical solution adopted by the present invention to solve the technical problem is: A flue gas desulfurization processor with a waste heat recovery function, comprising a mounting plate, a flow regulating mechanism, a waste heat recovery mechanism and an automatic cleaning mechanism; A reactor is fixedly arranged on the top of the left side of the mounting plate, and the reactor is arranged in a quasi-cylindrical shape, a liquid accumulation chamber is arranged on the inner bottom of the reactor, a spray chamber is opened on the top of the liquid accumulation chamber, and an exhaust chamber is opened on the top of the spray chamber, and an air inlet pipe is connected to the left outer wall of the spray chamber, and a liquid inlet pipe is arranged on the upper part of the air inlet pipe, and the air inlet pipe and the liquid inlet pipe are arranged in parallel, and the axes of the air inlet pipe and the liquid inlet pipe are arranged perpendicular to the outer wall of the spray chamber, and the output ends of the air inlet pipe and the liquid inlet pipe extend to the interior of the spray chamber, and the flow regulating mechanism is arranged between the air inlet pipe and the liquid inlet pipe, a heat exchange bin is fixedly arranged on the right side of the top of the mounting plate, the waste heat recovery mechanism is arranged between the heat exchange bin and the air inlet pipe, the automatic cleaning mechanism is arranged inside the reactor, and a plurality of bases are fixedly arranged on both sides of the bottom of the mounting plate. When treating the flue gas, the high-temperature flue gas flows into the spray chamber through the air inlet pipe. At this time, the spray liquid flows into the spray chamber through the liquid inlet pipe to react with the flue gas. The flow regulating mechanism can realize self-regulation of the flue gas flow and the spray liquid flow, so that the input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect. During the treatment, the high-temperature flue gas can be subjected to multi-stage waste heat recovery to improve the recovery efficiency of the flue gas heat. At the same time, the interior of the reactor can be cleaned to prevent the inner wall of the device from being corroded by condensation of impurities in the flue gas and to prevent the pipeline from being blocked.

[0007] Further, the flow regulating mechanism includes a first rotating part, the first rotating part is rotatably arranged in the middle part of the air inlet pipe, a first rotating shaft is arranged at the inner axis of the air inlet pipe, the first rotating shaft is rotatably connected to the inner wall of the fixed part of the air inlet pipe through a connecting plate, a plurality of fan blades are fixedly arranged on the outer wall of the middle part of the first rotating shaft, and the plurality of fan blades are evenly arranged around the rotating shaft, a connecting rod is fixedly connected between the rotating shaft and the inner wall of the first rotating part, a first external gear is arranged around the outer wall of the first rotating part, and the first external gear is arranged coaxially with the first rotating shaft. When the smoke flows through the fan blades, the fan blades are pushed to start rotating, so that the first rotating shaft starts rotating, and when the first rotating shaft rotates, the connecting rod is driven to start rotating, and when the connecting rod rotates, the first rotating part connected to the other end thereof is driven to rotate, and when the first rotating part rotates, the first external gear is driven to rotate.

[0008] Furthermore, a second rotating part is rotatably arranged at the middle of the outer side of the liquid inlet pipe, the second rotating part is located directly above the first rotating part, a second external gear is arranged around the outer side wall of the second rotating part, the second external gear is arranged coaxially with the second rotating part, a transmission chain is arranged around the outer sides of the first external gear and the second external gear, the first external gear and the second external gear are both meshed with the inner side of the transmission chain, and the diameter of the first external gear is much larger than the diameter of the second external gear. When the first external gear rotates, the second external gear is driven to start rotating through the transmission chain meshed with it, so that the second rotating part starts rotating.

[0009] Furthermore, an inner flow hole is provided at the inner axis of the second rotating part, and a plurality of movable baffles are arranged around the outer side of the inner flow hole. The plurality of movable baffles are evenly arranged around the inner flow hole. A sliding groove is provided at the connection between the movable baffle and the inner side wall of the second rotating part, and the inner end of the sliding groove faces the axis of the inner flow hole. The movable baffle and the sliding groove are slidably connected by a slider, the shape of the slider matches the sliding groove, and a spring is connected between the slider and the outer end of the sliding groove. When the second rotating part rotates, the movable baffle inside it is driven to rotate accordingly. When the movable baffle rotates, an outward centrifugal force is generated, causing the movable baffle to move outward along the slide groove, thereby increasing the flow area of ​​the inner flow hole. At this time, the spring is compressed, and an elastic force in the opposite direction is generated on the movable baffle. When the smoke flow inside the intake pipe is larger, the rotation speed of the fan blade is faster, and the rotation speed of the first rotating shaft is faster. At this time, the rotation speeds of the first rotating part and the second rotating part are faster, the centrifugal force on the movable baffle is greater, the amplitude of the outward movement is greater, the flow area of ​​the inner flow hole is larger, and the flow rate of the spray liquid is larger, thereby realizing self-regulation of the smoke flow and the spray liquid flow, so that the input amount always maintains the highest reaction efficiency ratio synchronously, thereby improving the reaction effect.

[0010] Furthermore, the waste heat recovery mechanism includes an exhaust pipe, the input end of the exhaust pipe is connected to the outer wall pipeline of the exhaust cavity, the input end of the exhaust pipe is connected to the left top pipeline of the heat exchange bin, a plurality of partitions are fixedly arranged inside the heat exchange bin, the plurality of partitions are arranged parallel to the left and right side walls of the heat exchange bin, the partitions are staggeredly arranged on the upper and lower sides of the heat exchange bin, and the top right pipeline of the heat exchange bin is connected to an exhaust pipe. The treated low-temperature flue gas reacts with the spray liquid and flows upward into the exhaust cavity, and then flows into the interior of the heat exchange bin through the exhaust pipe.

[0011] Furthermore, the inner wall of the heat exchange bin and the partition are arranged to form a heat exchange cavity, the heat exchange cavity is arranged in an "S" shape, the left wall pipeline of the heat exchange bin is connected to the first input pipe, the heat exchange coil is fixedly arranged between the partitions, the heat exchange coil is arranged in a surrounding manner inside the heat exchange bin, and the output end of the heat exchange coil extends to the right bottom of the heat exchange bin. After the flue gas flows into the heat exchange bin, it flows through the heat exchange cavity formed by the partition and the inner wall of the heat exchange bin. At this time, the heat transfer liquid flows into the heat transfer coil through the first input pipe and performs preliminary heat exchange with the flue gas. By providing a heat exchange cavity, the heat exchange area and time between the flue gas and the heat transfer liquid can be increased as much as possible, thereby improving the heat exchange efficiency.

[0012] Furthermore, the bottom pipeline of the right side wall of the heat exchange bin is connected with a liquid infusion pipe, the input end of the liquid infusion pipe is connected with the output end pipeline of the heat exchange coil, the outer sleeve of the air intake pipe is provided with a heat exchange sleeve, the interior of the heat exchange sleeve is provided with a heat exchange layer, the interior of the heat exchange layer is provided with a spiral heat exchange hole surrounding the air intake pipe, the right bottom pipeline of the spiral heat exchange hole is connected with a second input pipe, the input end of the second input pipe is connected with the output end pipeline of the liquid infusion pipe, and the left top pipeline of the spiral heat exchange hole is connected with a heat exchange output pipe. The heat transfer liquid after heat exchange flows along the liquid infusion pipe into the second input pipe, and then flows into the spiral heat exchange hole inside the heat exchange sleeve, and further exchanges heat with the high-temperature flue gas inside the air intake pipe, thereby fully improving the waste heat recovery efficiency of the flue gas.

[0013] Furthermore, the automatic cleaning mechanism includes a first bevel gear, the first rotating shaft extends toward one end of the reactor to the interior of the spray chamber, the first bevel gear is arranged at the inner end of the first rotating shaft, a filter plate is fixedly arranged between the spray chamber and the exhaust chamber, a second rotating shaft is arranged at the internal axis of the reactor, the top end of the second rotating shaft is rotatably connected to the bottom center of the filter plate, a second bevel gear is arranged in the middle of the second rotating shaft, the first bevel gear is meshed with the second bevel gear, a plurality of spray pipes are arranged at the bottom of the filter plate, a liquid distribution pipe is connected to the pipeline between the spray pipe and the liquid inlet pipe, and a plurality of nozzles are arranged at the bottom of the spray pipe. When the first rotating shaft rotates, it drives the first bevel gear to start rotating. When the first bevel gear rotates, it drives the second bevel gear meshing therewith to start rotating. When the second bevel gear rotates, it drives the second rotating shaft to start rotating. The spray liquid flows into the spray pipe through the liquid distribution pipe and is sprayed out along the nozzle at the bottom to react with the high-temperature flue gas inside the spray chamber to desulfurize it. The temperature of the treated flue gas is reduced and then it flows through the filter plate into the exhaust chamber. The remaining dust and impurities in the flue gas can be filtered through the filter plate. The spray liquid after the reaction flows into the liquid accumulation chamber at the bottom.

[0014] Furthermore, a first cleaning rod is fixedly provided on the outer side of the top of the second rotating shaft, and a first scraper is fixedly provided on the outer end of the first cleaning rod, and the shape of the first scraper matches the upper side of the inner wall of the spray chamber; a second cleaning rod is fixedly provided on the outer side of the middle part of the second rotating shaft, and a second scraper is fixedly provided on the outer end of the second cleaning rod, and the shape of the second scraper matches the lower side of the inner wall of the spray chamber; when the second rotating shaft rotates, the first cleaning rod and the second cleaning rod on the outer side thereof are driven to rotate accordingly; when the first cleaning rod rotates, the dirty impurities condensed on the bottom of the filter plate are scraped off; when the first cleaning rod and the second cleaning rod rotate, they respectively drive the first scraper and the second scraper to rotate, thereby cleaning the inner wall of the reactor to prevent the inner wall of the reactor from being corroded by condensation of impurities in the flue gas.

[0015] Furthermore, a plurality of stirring rods are fixedly provided on the outer side wall at the bottom of the second rotating shaft, a drain pipe is connected to the right pipeline at the bottom of the liquid accumulation chamber, the axis of the drain pipe is perpendicular to the second rotating shaft, a third bevel gear is provided at the bottom of the second rotating shaft, a third rotating shaft is rotated at the axis of the drain pipe, a fourth bevel gear is provided at one end of the third rotating shaft facing the second rotating shaft, the third bevel gear is meshingly connected with the fourth bevel gear, a spiral blade is arranged around the outside of the third rotating shaft, the diameter of the spiral blade matches the drain pipe, and an output pump is connected to the output end pipeline of the drain pipe. When the second rotating shaft rotates, it drives the stirring rod at its bottom to start rotating, thereby stirring the slurry inside the accumulating liquid chamber. When the second rotating shaft rotates, it drives the third bevel gear at its bottom to start rotating. When the third bevel gear rotates, it drives the fourth bevel gear meshing with it to start rotating, so that the third rotating shaft inside the discharge pipe starts to rotate. When the third rotating shaft rotates, it drives the spiral blades to start rotating, and the viscous reactant at the bottom of the accumulating liquid chamber is input into the discharge pipe, and then discharged through the output pump, so as to prevent the sediment at the bottom of the accumulating liquid chamber from condensing and clogging the pipeline.

[0016] Beneficial effects of the present invention: 1. The flue gas desulfurization processor with waste heat recovery function of the present invention can realize self-regulation of flue gas flow and spray liquid flow through a flow regulating mechanism, so that its input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect. During the treatment, multi-stage waste heat recovery can be performed on the high-temperature flue gas to improve the recovery efficiency of the flue gas heat. At the same time, the interior of the reactor can be cleaned to prevent the inner wall of the device from being corroded by condensation of impurities in the flue gas and to prevent the pipeline from being blocked.

[0017] 2. The flue gas desulfurization processor with waste heat recovery function of the present invention is provided with a flow regulating mechanism, which can drive the movable baffle inside it to rotate when the second rotating part rotates. When the movable baffle rotates, it generates outward centrifugal force, so that the movable baffle moves outward along the slide groove, thereby increasing the flow area of ​​the inner flow hole. At this time, the spring is compressed, and an elastic force in the opposite direction is generated on the movable baffle. When the flue gas flow inside the intake pipe is larger, the rotation speed of the fan blade is faster, and the rotation speed of the first rotating shaft is faster. At this time, the rotation speed of the first rotating part and the second rotating part is faster, the centrifugal force on the movable baffle is greater, the amplitude of the outward movement is greater, the flow area of ​​the inner flow hole is larger, and the flow rate of the spray liquid is larger, thereby realizing self-regulation of the flue gas flow and the spray liquid flow, so that the input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect.

[0018] 3. The flue gas desulfurization processor with waste heat recovery function of the present invention is provided with a waste heat recovery mechanism, which can make the flue gas flow into the heat exchange chamber and then flow through the heat exchange chamber formed by the partition and the inner wall of the heat exchange chamber. At this time, the heat transfer liquid flows into the heat exchange coil through the first input pipe to perform preliminary heat exchange with the flue gas. By providing the heat exchange chamber, the heat exchange area and time between the flue gas and the heat transfer liquid can be increased as much as possible, thereby improving the heat exchange efficiency. The heat transfer liquid after heat exchange flows along the liquid infusion pipe into the second input pipe, and then flows into the spiral heat exchange holes inside the heat exchange sleeve, and further exchanges heat with the high-temperature flue gas inside the intake pipe, thereby fully improving the waste heat recovery efficiency of the flue gas.

[0019] 4. The flue gas desulfurization processor with waste heat recovery function of the present invention is provided with an automatic cleaning mechanism, which can drive the first cleaning rod and the second cleaning rod on the outer side thereof to rotate when the second rotating shaft rotates. When the first cleaning rod rotates, the dirty impurities condensed on the bottom of the filter plate are scraped off, and when the first cleaning rod and the second cleaning rod rotate, they respectively drive the first scraper and the second scraper to rotate, thereby cleaning the inner wall of the reactor to prevent the inner wall of the reactor from being condensed and corroded by impurities in the flue gas; when the second rotating shaft rotates, it drives the stirring rod at the bottom thereof to start rotating, thereby stirring the slurry inside the liquid accumulation chamber, and when the second rotating shaft rotates, it drives the third bevel gear at the bottom thereof to start rotating, and when the third bevel gear rotates, it drives the fourth bevel gear meshing with it to start rotating, so that the third rotating shaft inside the drain pipe starts to rotate, and when the third rotating shaft rotates, it drives the spiral blade to start rotating, and the viscous reactant at the bottom of the liquid accumulation chamber is input into the drain pipe, and then discharged through the output pump, so as to prevent the sediment at the bottom of the liquid accumulation chamber from condensing and clogging the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the flue gas desulfurization processor with waste heat recovery function; Figure 2 This is an enlarged schematic diagram of the structure of location A of the flue gas desulfurization processor with waste heat recovery function; Figure 3 It is a side view schematic diagram of the flow regulating mechanism of the flue gas desulfurization processor with waste heat recovery function; Figure 4 It is a schematic diagram of the internal structure of the heat exchange sleeve of the flue gas desulfurization processor with waste heat recovery function.

[0021] Description of the accompanying drawings: 1, mounting plate; 2, base; 3, reactor; 4, heat exchange chamber; 5, liquid accumulation chamber; 6, spray chamber; 7, exhaust chamber; 8, air inlet pipe; 9, liquid inlet pipe; 10, heat exchange sleeve; 11, filter plate; 12, spray pipe; 13, second rotating shaft; 14, second bevel gear; 15, first bevel gear; 16, first cleaning rod; 17, second cleaning rod; 18, second scraper; 19, stirring rod; 20, drain pipe; 21, third bevel gear; 22, fourth bevel gear; 23, third rotating shaft; 24, spiral blade Plate; 25, output pump; 26, exhaust pipe; 27, partition; 28, outlet pipe; 29, heat exchange coil; 30, second rotating part; 31, first rotating part; 32, second external gear; 33, first external gear; 34, transmission chain; 35, liquid distribution pipe; 36, nozzle; 37, first rotating shaft; 38, liquid infusion pipe; 39, fan blade; 40, connecting rod; 41, inner flow hole; 42, movable baffle; 43, slide groove; 44, slider; 45, spring; 46, second input pipe; 47, spiral heat exchange hole; 48, heat exchange output pipe. DETAILED DESCRIPTION

[0022] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0023] like Figure 1-4 As shown, a flue gas desulfurization processor with waste heat recovery function includes a mounting plate 1, a flow regulating mechanism, a waste heat recovery mechanism and an automatic cleaning mechanism; A reactor 3 is fixedly arranged on the top of the left side of the mounting plate 1. The reactor 3 is arranged in a quasi-cylindrical shape. A liquid accumulation chamber 5 is arranged on the inner bottom of the reactor 3. A spray chamber 6 is opened on the top of the liquid accumulation chamber 5. An exhaust chamber 7 is opened on the top of the spray chamber 6. An air inlet pipe 8 is connected to the outer wall of the spray chamber 6 on the left side. A liquid inlet pipe 9 is arranged on the upper part of the air inlet pipe 8. The air inlet pipe 8 and the liquid inlet pipe 9 are arranged in parallel. The axes of the air inlet pipe 8 and the liquid inlet pipe 9 are arranged perpendicular to the outer wall of the spray chamber 6. The output ends of the air inlet pipe 8 and the liquid inlet pipe 9 extend to the inside of the spray chamber 6. The flow regulating mechanism is arranged between the air inlet pipe 8 and the liquid inlet pipe 9. A heat exchange bin 4 is fixedly arranged on the right side of the top of the mounting plate 1. The waste heat recovery mechanism is arranged between the heat exchange bin 4 and the air inlet pipe 8. The automatic cleaning mechanism is arranged inside the reactor 3. A plurality of bases 2 are fixedly arranged on both sides of the bottom of the mounting plate 1. When the flue gas is treated, the high-temperature flue gas flows into the spray chamber 6 through the air inlet pipe 8. At this time, the spray liquid flows into the spray chamber 6 through the liquid inlet pipe 9 to react with the flue gas. The flow regulating mechanism can realize self-regulation of the flue gas flow and the spray liquid flow, so that the input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect. During the treatment, the high-temperature flue gas can be subjected to multi-stage waste heat recovery to improve the recovery efficiency of the flue gas heat. At the same time, the interior of the reactor 3 can be cleaned to prevent the inner wall of the device from being corroded by condensation of impurities in the flue gas and to prevent the pipeline from being blocked.

[0024] The flow regulating mechanism includes a first rotating part 31, which is rotatably arranged in the middle of the air inlet pipe 8, and a first rotating shaft 37 is arranged at the inner axis of the air inlet pipe 8, and the first rotating shaft 37 is rotatably connected to the inner wall of the fixed part of the air inlet pipe 8 through a connecting plate, and a plurality of blades 39 are fixedly arranged on the outer wall of the middle part of the first rotating shaft 37, and the plurality of blades 39 are evenly arranged around the rotating shaft, and a connecting rod 40 is fixedly connected between the rotating shaft and the inner wall of the first rotating part 31, and a first external gear 33 is arranged around the outer wall of the first rotating part 31, and the first external gear 33 is coaxially arranged with the first rotating shaft 37. When the smoke flows through the blades 39, the blades 39 are pushed to start rotating, so that the first rotating shaft 37 starts rotating, and when the first rotating shaft 37 rotates, the connecting rod 40 is driven to start rotating, and when the connecting rod 40 rotates, the first rotating part 31 connected to the other end thereof is driven to rotate, and when the first rotating part 31 rotates, the first external gear 33 is driven to rotate.

[0025] A second rotating part 30 is rotatably arranged at the middle of the outer side of the liquid inlet pipe 9. The second rotating part 30 is located directly above the first rotating part 31. A second external gear 32 is arranged around the outer wall of the second rotating part 30. The second external gear 32 is arranged coaxially with the second rotating part 30. A transmission chain 34 is sleeved around the outer sides of the first external gear 33 and the second external gear 32. Both the first external gear 33 and the second external gear 32 are meshed with the inner side of the transmission chain 34. The diameter of the first external gear 33 is much larger than the diameter of the second external gear 32. When the first external gear 33 rotates, the second external gear 32 is driven to rotate through the transmission chain 34 meshed with it, so that the second rotating part 30 starts to rotate.

[0026] An inner flow hole 41 is provided at the inner axis of the second rotating part 30, and a plurality of movable baffles 42 are arranged around the outer side of the inner flow hole 41. The plurality of movable baffles 42 are evenly arranged around the inner flow hole 41. A slide groove 43 is provided at the connection between the movable baffle 42 and the inner side wall of the second rotating part 30, and the inner end of the slide groove 43 faces the axis of the inner flow hole 41. The movable baffle 42 and the slide groove 43 are slidably connected by a slider 44. The shape of the slider 44 matches the slide groove 43, and a spring 45 is connected between the slider 44 and the outer end of the slide groove 43. When the second rotating part 30 rotates, the movable baffle 42 inside it is driven to rotate accordingly. When the movable baffle 42 rotates, an outward centrifugal force is generated, so that the movable baffle 42 moves outward along the slide groove 43, thereby increasing the flow area of ​​the inner flow hole 41. At this time, the spring 45 is compressed, and an elastic force in the opposite direction is generated on the movable baffle. When the smoke flow inside the intake pipe 8 is larger, the rotation speed of the fan blade 39 is faster, and the rotation speed of the first rotating shaft 37 is faster. At this time, the rotation speed of the first rotating part 31 and the second rotating part 30 is faster, the centrifugal force on the movable baffle 42 is greater, the amplitude of the outward movement is greater, the flow area of ​​the inner flow hole 41 is larger, and the flow rate of the spray liquid is larger, thereby realizing self-regulation of the smoke flow rate and the spray liquid flow rate, so that its input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect.

[0027] The waste heat recovery mechanism includes an exhaust pipe 26, the input end of which is connected to the outer wall pipeline of the exhaust chamber 7, and the input end of which is connected to the left top pipeline of the heat exchange chamber 4. A plurality of partitions 27 are fixedly arranged inside the heat exchange chamber 4, and the plurality of partitions 27 are arranged parallel to the left and right side walls of the heat exchange chamber 4. The partitions 27 are staggeredly arranged on the upper and lower sides of the heat exchange chamber 4, and the right pipeline on the top of the heat exchange chamber 4 is connected to an outlet pipe 28. The treated low-temperature flue gas reacts with the spray liquid and flows upward into the exhaust chamber 7, and then flows into the interior of the heat exchange chamber 4 through the exhaust pipe 26.

[0028] The inner wall of the heat exchange bin 4 and the partition 27 are arranged to form a heat exchange cavity, which is arranged in an "S" shape. The left wall pipeline of the heat exchange bin 4 is connected with a first input pipe. A heat exchange coil 29 is fixedly arranged between the partitions 27. The heat exchange coil 29 is arranged inside the heat exchange bin 4 in a surrounding manner, and the output end of the heat exchange coil 29 extends to the right bottom of the heat exchange bin 4. After the flue gas flows into the heat exchange bin 4, it flows through the heat exchange cavity formed by the partition 27 and the inner wall of the heat exchange bin 4. At this time, the heat transfer liquid flows into the heat transfer coil 29 through the first input pipe and performs preliminary heat exchange with the flue gas. By providing a heat exchange cavity, the heat exchange area and time between the flue gas and the heat transfer liquid can be increased as much as possible, thereby improving the heat exchange efficiency.

[0029] Furthermore, the bottom pipeline of the right side wall of the heat exchange bin 4 is connected with a liquid infusion pipe 38, the input end of the liquid infusion pipe 38 is connected with the output end pipeline of the heat exchange coil 29, the outer sleeve of the air intake pipe 8 is provided with a heat exchange sleeve 10, the interior of the heat exchange sleeve 10 is provided with a heat exchange layer, the interior of the heat exchange layer is provided with a spiral heat exchange hole 47 surrounding the air intake pipe 8, the right bottom pipeline of the spiral heat exchange hole 47 is connected with a second input pipe 46, the input end of the second input pipe 46 is connected with the output end pipeline of the liquid infusion pipe 38, and the left top pipeline of the spiral heat exchange hole 47 is connected with a heat exchange output pipe 48. The heat transfer liquid after heat exchange flows along the liquid infusion pipe 38 into the second input pipe 46, and then flows into the spiral heat exchange hole 47 inside the heat exchange sleeve 10, and further exchanges heat with the high-temperature flue gas inside the air intake pipe 8, thereby fully improving the waste heat recovery efficiency of the flue gas.

[0030] The automatic cleaning mechanism includes a first bevel gear 15, the first rotating shaft 37 extends toward one end of the reactor 3 to the inside of the spray chamber 6, the first bevel gear 15 is arranged at the inner end of the first rotating shaft 37, a filter plate 11 is fixedly arranged between the spray chamber 6 and the exhaust chamber 7, a second rotating shaft 13 is arranged at the internal axis of the reactor 3, the top end of the second rotating shaft 13 is rotatably connected to the bottom center of the filter plate 11, a second bevel gear 14 is arranged in the middle of the second rotating shaft 13, the first bevel gear 15 is meshedly connected with the second bevel gear 14, a plurality of spray pipes 12 are arranged at the bottom of the filter plate 11, a liquid distribution pipe 35 is connected to the pipeline between the spray pipe 12 and the liquid inlet pipe 9, and a plurality of nozzles 36 are arranged at the bottom of the spray pipe 12. When the first rotating shaft 37 rotates, the first bevel gear 15 is driven to start rotating. When the first bevel gear 15 rotates, the second bevel gear 14 meshing therewith is driven to start rotating. When the second bevel gear 14 rotates, the second rotating shaft 13 is driven to start rotating. The spray liquid flows into the spray pipe 12 through the liquid distribution pipe 35 and is sprayed out along the nozzle 36 at the bottom to react with the high-temperature flue gas inside the spray chamber 6 to desulfurize it. The temperature of the treated flue gas is reduced, and then it flows through the filter plate 11 into the exhaust chamber 7. The remaining dust and impurities in the flue gas can be filtered through the filter plate 11. The spray liquid after the reaction flows into the liquid accumulation chamber 5 at the bottom.

[0031] A first cleaning rod 16 is fixedly provided on the outer side of the top of the second rotating shaft 13, and a first scraper is fixedly provided on the outer end of the first cleaning rod 16, and the shape of the first scraper matches the upper side of the inner wall of the spray chamber 6. A second cleaning rod 17 is fixedly provided on the outer side of the middle part of the second rotating shaft 13, and a second scraper 18 is fixedly provided on the outer end of the second cleaning rod 17, and the shape of the second scraper 18 matches the lower side of the inner wall of the spray chamber 6. When the second rotating shaft 13 rotates, the first cleaning rod 16 and the second cleaning rod 17 on the outer side thereof are driven to rotate accordingly. When the first cleaning rod 16 rotates, the dirty impurities condensed on the bottom of the filter plate 11 are scraped off. When the first cleaning rod 16 and the second cleaning rod 17 rotate, they respectively drive the first scraper 18 and the second scraper 18 to rotate, thereby cleaning the inner wall of the reactor 3 to prevent the inner wall of the reactor 3 from being condensed and corroded by impurities in the flue gas.

[0032] A plurality of stirring rods 19 are fixedly provided on the outer side wall at the bottom of the second rotating shaft 13, a drain pipe 20 is connected to the bottom right pipeline of the liquid accumulation chamber 5, the axis of the drain pipe 20 is perpendicular to the second rotating shaft 13, a third bevel gear 21 is provided at the bottom of the second rotating shaft 13, a third rotating shaft 23 is rotatably provided at the axis of the drain pipe 20, a fourth bevel gear 22 is provided at one end of the third rotating shaft 23 facing the second rotating shaft 13, the third bevel gear 21 is meshingly connected with the fourth bevel gear 22, a spiral blade 24 is arranged around the outside of the third rotating shaft 23, the diameter of the spiral blade 24 matches the drain pipe 20, and an output pump 25 is connected to the output end pipeline of the drain pipe 20. When the second rotating shaft 13 rotates, it drives the stirring rod 19 at the bottom thereof to start rotating, thereby stirring the slurry inside the effusion chamber 5. When the second rotating shaft 13 rotates, it drives the third bevel gear 21 at the bottom thereof to start rotating. When the third bevel gear 21 rotates, it drives the fourth bevel gear 22 meshing with it to start rotating, so that the third rotating shaft 23 inside the discharge pipe 20 starts rotating. When the third rotating shaft 23 rotates, it drives the spiral blade 24 to start rotating, and the viscous reactant at the bottom of the effusion chamber 5 is input into the discharge pipe 20, and then discharged through the output pump 25, so as to prevent the sediment at the bottom of the effusion chamber 5 from condensing and clogging the pipeline.

[0033] Working principle: When the smoke flows through the fan blades 39, the fan blades 39 are pushed to start rotating, so that the first rotating shaft 37 starts to rotate. When the first rotating shaft 37 rotates, the connecting rod 40 starts to rotate. When the connecting rod 40 rotates, it drives the first rotating part 31 connected to the other end to rotate. When the first rotating part 31 rotates, it drives the first external gear 33 to rotate. When the first external gear 33 rotates, it drives the second external gear 32 to start rotating through the transmission chain 34 meshing with it, so that the second rotating part 30 starts to rotate. When the second rotating part 30 rotates, it drives the movable baffle 42 inside it to rotate accordingly. When the movable baffle 42 rotates, it generates an outward centrifugal force, so that the movable baffle 42 moves outward along the slide groove 43, thereby increasing the flow area of ​​the inner flow hole 41. At this time, the spring 45 is compressed, generating an elastic force in the opposite direction on the movable baffle. When the smoke flow inside the intake pipe 8 is larger, the rotation speed of the fan blade 39 is faster, and the rotation speed of the first rotating shaft 37 is faster. At this time, the rotation speed of the first rotating part 31 and the second rotating part 30 is faster, the centrifugal force exerted on the movable baffle 42 is greater, the amplitude of the outward movement is greater, the flow area of ​​the inner flow hole 41 is larger, and the flow rate of the spray liquid is larger, thereby realizing self-regulation of the smoke flow rate and the spray liquid flow rate, so that the input amount always keeps the highest reaction efficiency ratio synchronously, thereby improving the reaction effect.

[0034] The treated low-temperature flue gas reacts with the spray liquid and flows upward into the exhaust chamber 7, and then flows into the interior of the heat exchange bin 4 through the exhaust pipe 26. After the flue gas flows into the heat exchange bin 4, it flows through the heat exchange chamber formed by the partition 27 and the inner wall of the heat exchange bin 4. At this time, the heat transfer liquid flows into the heat exchange coil 29 through the first input pipe to perform preliminary heat exchange with the flue gas. By providing a heat exchange chamber, the heat exchange area and time between the flue gas and the heat transfer liquid can be increased as much as possible, thereby improving the heat exchange efficiency. The heat transfer liquid after heat exchange flows along the infusion pipe 38 into the second input pipe 46, and then flows into the spiral heat exchange hole 47 inside the heat exchange sleeve 10, and further exchanges heat with the high-temperature flue gas inside the intake pipe 8, thereby fully improving the waste heat recovery efficiency of the flue gas.

[0035] When the first rotating shaft 37 rotates, it drives the first bevel gear 15 to start rotating. When the first bevel gear 15 rotates, it drives the second bevel gear 14 meshing therewith to start rotating. When the second bevel gear 14 rotates, it drives the second rotating shaft 13 to start rotating. The spray liquid flows into the spray pipe 12 through the liquid distribution pipe 35 and is sprayed out along the nozzle 36 at the bottom to react with the high-temperature flue gas inside the spray chamber 6 to desulfurize it. The temperature of the treated flue gas is reduced, and then it flows through the filter plate 11 into the exhaust chamber 7. The remaining dust and impurities in the flue gas can be filtered through the filter plate 11. The spray liquid after the reaction flows into the liquid accumulation chamber 5 at the bottom. When the second rotating shaft 13 rotates, it drives the first cleaning rod 16 and the second cleaning rod 17 on its outer side to rotate accordingly. When the first cleaning rod 16 rotates, it scrapes off the dirty impurities condensed on the bottom of the filter plate 11, and the second cleaning rod 17 rotates. When the first cleaning rod 16 and the second cleaning rod 17 rotate, they respectively drive the first scraper and the second scraper 18 to rotate, thereby cleaning the inner wall of the reactor 3 to prevent the inner wall of the reactor 3 from being condensed and corroded by impurities in the flue gas; when the second rotating shaft 13 rotates, it drives the stirring rod 19 at its bottom to start rotating, thereby stirring the slurry inside the liquid accumulation chamber 5. When the second rotating shaft 13 rotates, it drives the third bevel gear 21 at its bottom to start rotating. When the third bevel gear 21 rotates, it drives the fourth bevel gear 22 meshing with it to start rotating, so that the third rotating shaft 23 inside the drain pipe 20 starts to rotate. When the third rotating shaft 23 rotates, it drives the spiral blade 24 to start rotating, and the viscous reactant at the bottom of the liquid accumulation chamber 5 is input into the drain pipe 20, and then discharged through the output pump 25, so as to prevent the sediment at the bottom of the liquid accumulation chamber 5 from condensing and blocking the pipeline.

[0036] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A flue gas desulfurization processor with waste heat recovery function, characterized in that: It comprises a mounting plate (1), a flow regulating mechanism, a waste heat recovery mechanism and an automatic cleaning mechanism; A reaction kettle (3) is fixedly arranged on the top of the left side of the mounting plate (1); the reaction kettle (3) is arranged in a quasi-cylindrical shape; a liquid accumulation chamber (5) is arranged on the inner bottom of the reaction kettle (3); a spray chamber (6) is arranged on the top of the liquid accumulation chamber (5); an exhaust chamber (7) is arranged on the top of the spray chamber (6); an air inlet pipe (8) is connected to the left outer wall of the spray chamber (6); a liquid inlet pipe (9) is arranged on the upper part of the air inlet pipe (8); the air inlet pipe (8) and the liquid inlet pipe (9) are arranged in parallel; the axes of the air inlet pipe (8) and the liquid inlet pipe (9) are parallel to each other. The line is arranged perpendicularly to the outer wall of the spray chamber (6), the output ends of the air inlet pipe (8) and the liquid inlet pipe (9) extend into the interior of the spray chamber (6), the flow regulating mechanism is arranged between the air inlet pipe (8) and the liquid inlet pipe (9), a heat exchange chamber (4) is fixedly arranged on the right side of the top of the mounting plate (1), the waste heat recovery mechanism is arranged between the heat exchange chamber (4) and the air inlet pipe (8), the automatic cleaning mechanism is arranged inside the reactor (3), and a plurality of bases (2) are fixedly arranged on both sides of the bottom of the mounting plate (1).

2. A flue gas desulfurization processor with waste heat recovery function according to claim 1, characterized in that The flow regulating mechanism comprises a first rotating part (31), the first rotating part (31) is rotatably arranged in the middle part of the intake pipe (8), a first rotating shaft (37) is arranged at the inner axis of the intake pipe (8), the first rotating shaft (37) is rotatably connected to the inner wall of the fixed part of the intake pipe (8) via a connecting plate, a plurality of blades (39) are fixedly arranged on the outer wall of the middle part of the first rotating shaft (37), the plurality of blades (39) are evenly arranged around the rotating shaft (37), a connecting rod (40) is fixedly connected between the rotating shaft (37) and the inner wall of the first rotating part (31), a first external gear (33) is arranged around the outer wall of the first rotating part (31), and the first external gear (33) is coaxially arranged with the first rotating shaft (37).

3. A flue gas desulfurization processor with waste heat recovery function according to claim 2, characterized in that A second rotating part (30) is rotatably arranged at the middle part of the outer side of the liquid inlet pipe (9); the second rotating part (30) is located directly above the first rotating part (31); a second external gear (32) is arranged around the outer wall of the second rotating part (30); the second external gear (32) is coaxially arranged with the second rotating part (30); a transmission chain (34) is sleeved around the outside of the first external gear (33) and the second external gear (32); the first external gear (33) and the second external gear (32) are both meshed with the inner side of the transmission chain (34); the diameter of the first external gear (33) is much larger than the diameter of the second external gear (32); 4. The flue gas desulfurization processor with waste heat recovery function according to claim 3 is characterized in that An inner flow hole (41) is provided at the inner axis of the second rotating part (30), and a plurality of movable baffles (42) are arranged around the outer side of the inner flow hole (41). The plurality of movable baffles (42) are evenly arranged around the inner flow hole (41). A sliding groove (43) is provided at the connection between the movable baffle (42) and the inner side wall of the second rotating part (30), and the inner end of the sliding groove (43) faces the axis of the inner flow hole (41). The movable baffle (42) and the sliding groove (43) are slidably connected via a slider (44), and the shape of the slider (44) matches the sliding groove (43). A spring (45) is connected between the slider (44) and the outer end of the sliding groove (43).

5. The flue gas desulfurization processor with waste heat recovery function according to claim 1, characterized in that The waste heat recovery mechanism comprises an exhaust pipe (26), the input end of the exhaust pipe (26) is connected to the outer wall pipeline of the exhaust chamber (7), the input end of the exhaust pipe (26) is connected to the left top pipeline of the heat exchange chamber (4), a plurality of partitions (27) are fixedly arranged inside the heat exchange chamber (4), the plurality of partitions (27) are arranged parallel to the left and right side walls of the heat exchange chamber (4), the partitions (27) are staggeredly arranged on the upper and lower sides of the interior of the heat exchange chamber (4), and the top right pipeline of the heat exchange chamber (4) is connected to an outlet pipe (28).

6. The flue gas desulfurization processor with waste heat recovery function according to claim 5, characterized in that The inner wall of the heat exchange chamber (4) and the partition (27) are arranged to form a heat exchange chamber, and the heat exchange chamber is arranged in an "S" shape. The left wall pipeline of the heat exchange chamber (4) is connected to a first input pipe. A heat exchange coil (29) is fixedly arranged between the partitions (27). The heat exchange coil (29) is arranged in a surrounding manner inside the heat exchange chamber (4), and the output end of the heat exchange coil (29) extends to the right bottom of the heat exchange chamber (4).

7. The flue gas desulfurization processor with waste heat recovery function according to claim 6, characterized in that The bottom pipeline of the right side wall of the heat exchange bin (4) is connected to a liquid infusion pipe (38), the input end of the liquid infusion pipe (38) is connected to the output end pipeline of the heat exchange coil (29), the outer portion of the air inlet pipe (8) is sheathed with a heat exchange sleeve (10), the interior of the heat exchange sleeve (10) is provided with a heat exchange layer, the interior of the heat exchange layer is provided with a spiral heat exchange hole (47) surrounding the air inlet pipe (8), the bottom pipeline on the right side of the spiral heat exchange hole (47) is connected to a second input pipe (46), the input end of the second input pipe (46) is connected to the output end pipeline of the liquid infusion pipe (38), and the top pipeline on the left side of the spiral heat exchange hole (47) is connected to a heat exchange output pipe (48).

8. The flue gas desulfurization processor with waste heat recovery function according to claim 2, characterized in that The automatic cleaning mechanism comprises a first bevel gear (15), the first rotating shaft (37) extending toward one end of the reactor (3) to the inside of the spray chamber (6), the first bevel gear (15) being arranged at the inner end of the first rotating shaft (37), a filter plate (11) being fixedly arranged between the spray chamber (6) and the exhaust chamber (7), a second rotating shaft (13) being arranged at the inner axis of the reactor (3), the top end of the second rotating shaft (13) being rotatably connected to the bottom center of the filter plate (11), a second bevel gear (14) being arranged at the middle of the second rotating shaft (13), the first bevel gear (15) being meshingly connected to the second bevel gear (14), a plurality of spray pipes (12) being arranged at the bottom of the filter plate (11), a liquid distribution pipe (35) being connected to the liquid inlet pipe (9), and a plurality of spray heads (36) being arranged at the bottom of the spray pipe (12).

9. The flue gas desulfurization processor with waste heat recovery function according to claim 8, characterized in that A first cleaning rod (16) is fixedly arranged on the outer side of the top of the second rotating shaft (13), a first scraper is fixedly arranged on the outer end of the first cleaning rod (16), and the shape of the first scraper matches the upper side of the inner wall of the spray chamber (6); a second cleaning rod (17) is fixedly arranged on the outer side of the middle part of the second rotating shaft (13), a second scraper (18) is fixedly arranged on the outer end of the second cleaning rod (17), and the shape of the second scraper (18) matches the lower side of the inner wall of the spray chamber (6).

10. The flue gas desulfurization processor with waste heat recovery function according to claim 9, characterized in that A plurality of stirring rods (19) are fixedly arranged on the outer side wall of the bottom of the second rotating shaft (13); a drain pipe (20) is connected to the right pipeline at the bottom of the liquid accumulation chamber (5); the axis of the drain pipe (20) is arranged perpendicular to the second rotating shaft (13); a third bevel gear (21) is arranged at the bottom of the second rotating shaft (13); a third rotating shaft (23) is arranged to rotate at the axis of the drain pipe (20); a fourth bevel gear (22) is arranged at one end of the third rotating shaft (23) facing the second rotating shaft (13); the third bevel gear (21) is meshingly connected with the fourth bevel gear (22); a spiral blade (24) is arranged around the outside of the third rotating shaft (23); the diameter of the spiral blade (24) matches that of the drain pipe (20); and an output pump (25) is connected to the output end pipeline of the drain pipe (20).

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