Calcium-based dry desulfurization device

Abstract

The utility model belongs to the technical field of dry desulfurization, and particularly relates to a calcium-based dry desulfurization device which comprises a treatment tank, the interior of the treatment tank is fixedly connected with a supporting plate; a first connecting disc is mounted at the top of the supporting plate; the top of the first connecting disc is rotationally connected with a second connecting disc. The top of the second connecting disc is fixedly connected with a shaft rod. The middle part of the shaft rod is fixedly connected with a plurality of blade plates; the middle part of the shaft rod is fixedly connected with a spiral scraping plate; a filter bag is mounted at an exhaust port in the top of the treatment tank; the spiral scraping plate is positioned in the filter bag; by means of the structure, the situation that particle impurities in gas are attached and accumulated on the inner side wall of the filter bag, filter holes are blocked, and the gas is difficult to exhaust can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dry desulfurization technical field, specifically is a kind of calcium-based dry desulfurization device. BACKGROUND

[0002] Calcium-based dry desulfurization is a common flue gas desulfurization technology, by spraying calcium-based dry desulfurizer in flue gas to absorb and convert sulfur dioxide in flue gas, to achieve the purpose of reducing flue gas pollution.

[0003] When calcium-based dry desulfurization is carried out, flue gas and desulfurizer are added to the desulfurization device, so that the desulfurizer absorbs and converts sulfur dioxide in flue gas into calcium sulfate, and the calcium sulfate is fixed by filtration and separation process, so as to realize the desulfurization of flue gas, when calcium-based dry desulfurization is carried out, filter device is added at the exhaust port of desulfurization device to filter particulate impurities in exhaust gas, and impurities adhering to filter device will reduce the flux of exhaust gas, affecting the efficiency of flue gas desulfurization treatment.

[0004] Therefore, the utility model provides a kind of calcium-based dry desulfurization device. UTILITY MODEL CONTENT

[0005] In order to make up for the deficiencies of prior art, at least one technical problem proposed in the background art is solved.

[0006] The technical scheme adopted by the utility model to solve its technical problems is: the utility model discloses a kind of calcium-based dry desulfurization device, including treatment tank;The inside of the treatment tank is fixedly connected with support plate;The top of the support plate is installed with first connecting disc;The top of the first connecting disc is rotatably connected with second connecting disc;The top of the second connecting disc is fixedly connected with shaft rod;The middle of the shaft rod is fixedly connected with multiple blade plates;The middle of the shaft rod is fixedly connected with spiral scraper;The top exhaust port of the treatment tank is installed with filter bag;The spiral scraper is located in filter bag interior;Through the above structure, the situation that particulate impurities in gas adhere and accumulate on the inner wall of filter bag, causing filter hole to be blocked and gas to be difficult to discharge, can be reduced.

[0007] Preferably, the middle part of the second connecting plate is slidingly connected with a plurality of limiting plates; the top of the first connecting plate is provided with a plurality of first inclined grooves; the middle part of the supporting plate is rotatably connected with a transmission rod; the outer side wall of the treatment tank is fixedly connected with a motor; the output end of the motor is fixedly connected with a power output rod; the power output rod and the transmission rod are drivingly connected through bevel gears; the first connecting plate is slidingly connected to the top of the transmission rod; through the above structure, when the impurities in the filter bag are less and the exhaust flow is large, the filter bag can be cleaned by using the power of the gas flow; when the impurities in the filter bag are more and the exhaust flow is small, the motor is started to drive the spiral scraper to clean the filter bag, thereby improving the applicability of the device and reducing the situation that the exhaust flow decreases due to the accumulation of too many impurities in the filter bag during long-term continuous operation.

[0008] Preferably, the top of the supporting plate is fixedly connected with a plurality of second inclined grooves; the bottom of the first connecting plate is provided with a plurality of inclined blocks; the top of the treatment tank is fixedly connected with a ring plate; the top of the ring plate is detachably installed with a closing plate; the inside of the ring plate is installed with a spring; the bottom of the filter bag is fixedly connected with a connecting ring; the connecting ring is installed at the bottom of the spring; through the above structure, when the motor is started to clean the inside of the filter bag, the filter bag can vibrate and shake out some impurities in the filter hole, thereby further reducing the situation that the exhaust flow decreases due to the blockage of the filter hole of the filter bag.

[0009] Preferably, the outer side wall of the treatment tank is fixedly connected with a pair of electric cylinders; the output end of the electric cylinder is fixedly connected with a collection box; the top of the treatment tank is provided with a pair of material taking openings; through the above structure, the impurities attached to the inside of the filter bag can be cleaned without disassembling the filter bag, thereby reducing the inconvenience caused by disassembling the filter bag and improving the use convenience of the device.

[0010] Preferably, the side wall of the limiting plate is rotatably connected with a plurality of rotating rollers; the rotating rollers are uniformly distributed on the side wall of the limiting plate; through the above structure, the sliding friction between the limiting plate and the second connecting plate can be changed into rolling friction, thereby reducing the friction between the components, enabling the shaft to rotate by itself under the condition of smaller gas flow, reducing the wear of the components and prolonging the service life of the components.

[0011] Preferably, the top of the treatment tank is fixedly connected with a baffle; the baffle is arranged at the exhaust port of the treatment tank; through the above structure, the situation that impurities enter the lower part of the spring can be reduced during the up-and-down movement of the spring, thereby reducing the situation that the impurities accumulate on the treatment tank below the spring and are compacted by the impact of the spring, causing the stroke of the spring to gradually decrease and the vibration effect to decrease.

[0012] Preferably, the middle part of the filter bag is fixedly connected with a framework; the framework is fixedly connected to the outer side wall of the filter bag; through the above structure, the vibration force generated when the spring collides with the treatment tank can be better conducted to the filter bag, and the cleaning effect on the filter bag is improved.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The calcium-based dry desulfurization device, through the arrangement of the treatment tank, the supporting plate, the first connecting disc, the second connecting disc, the shaft rod, the blade, the spiral scraper and the filter bag, the situation that the particulate impurities in the gas adhere and accumulate on the inner side wall of the filter bag to cause filter hole blockage and make the gas difficult to discharge can be reduced.

[0015] 2. The calcium-based dry desulfurization device, through the arrangement of the limiting plate, the first chute, the transmission rod, the motor and the power output rod, when the impurities in the filter bag are less and the exhaust flux is large, the inside of the filter bag can be cleaned by using the power of the gas flow, when the impurities in the filter bag are more and the exhaust flux is small, the motor is started to drive the spiral scraper to clean the filter bag, the applicability of the device is improved, and the situation that the exhaust capacity decreases due to the excessive accumulation of impurities in the filter bag caused by long-time continuous operation is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings.

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is the structural schematic view of the treatment tank in the utility model;

[0019] Figure 3 It is the structural schematic view of the first connecting disc in the utility model;

[0020] Figure 4 It is the structural schematic view of the second connecting disc in the utility model;

[0021] Figure 5 It is the structural schematic view of the filter bag in the utility model.

[0022] In the drawing: 1, treatment tank; 12, supporting plate; 13, first connecting disc; 14, second connecting disc; 15, shaft rod; 16, blade; 17, spiral scraper; 18, filter bag; 2, limiting plate; 21, first chute; 22, transmission rod; 23, motor; 24, power output rod; 3, second chute; 31, inclined block; 32, ring plate; 33, closing plate; 34, spring; 35, connecting ring; 4, electric cylinder; 41, collection box; 42, material taking port; 5, rotating roller; 6, baffle; 7, framework. DETAILED DESCRIPTION

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As Figures 1 to 5 shown, the calcium-based dry desulfurization device provided by the utility model, including processing jar 1, the inside of processing jar 1 is fixedly connected with support plate 12, the top of support plate 12 is installed with first connecting disc 13, the top of first connecting disc 13 is rotatably connected with second connecting disc 14, the top of second connecting disc 14 is fixedly connected with shaft 15, the middle of shaft 15 is fixedly connected with multiple blade plates 16, the middle of shaft 15 is fixedly connected with spiral scraper 17, the top exhaust port of processing jar 1 is installed with filter bag 18, spiral scraper 17 is located inside filter bag 18, when dry desulfurization is carried out to flue gas, the gas after desulfurization is discharged through filter bag 18, the impurity particles in the gas are blocked by filter bag 18 and are difficult to discharge, when the gas flows through blade plate 16, the surface of multiple blade plates 16 is continuously impacted by the gas, which drives blade plate 16 and shaft 15 to rotate, further drives spiral scraper 17 to rotate, makes spiral scraper 17 scrape and clean the impurities on the inner side wall of filter bag 18, reduces the situation that the exhaust effect is reduced due to the accumulation of impurities and the blockage of filter bag 18 filter hole, through the above structure, the situation that the filter hole is blocked due to the attachment and accumulation of particle impurities in the gas on the inner side wall of filter bag 18, which makes the gas difficult to discharge, can be reduced.

[0025] As Figures 1 to 4As shown, the middle part of the second connecting disc 14 is slidingly connected with a plurality of limiting plates 2; the top part of the first connecting disc 13 is provided with a plurality of first inclined grooves 21; the middle part of the supporting plate 12 is rotatably connected with a transmission rod 22; the outer side wall of the processing tank 1 is fixedly connected with a motor 23; the output end of the motor 23 is fixedly connected with a power output rod 24; the power output rod 24 and the transmission rod 22 are drivingly connected through bevel gears; the first connecting disc 13 is slidingly connected to the top part of the transmission rod 22; during operation, when the motor 23 is not started, the shaft rod 15 rotates with the flow of gas, at this time, the second connecting disc 14 rotates on the first connecting disc 13, the bottom part of the plurality of limiting plates 2 will rise above the first connecting disc 13 along the first inclined grooves 21 and then fall into the next first inclined groove 21 again, when the impurities accumulated inside the filter bag 18 are more, the impurities are easy to re-attach to the inner side wall of the filter bag 18 along with the flow of gas and make the gas flux decrease, the decrease of the gas flux will make the rotating speed of the shaft rod 15 decrease, at this time, the motor 23 is started to drive the first connecting disc 13 to rotate through the power output rod 24 and the transmission rod 22, at this time, the bottom part of the limiting plate 2 will fall into the first inclined groove 21 and be pushed by the other side of the first inclined groove 21, so that the second connecting disc 14 can rotate with the first connecting disc 13, thereby driving the spiral scraper 17 to clean the impurities on the inner side wall of the filter bag 18, through the above structure, when the exhaust gas flux is large when the impurities inside the filter bag 18 are less, the power of the gas flow is used to clean the inside of the filter bag 18, when the exhaust gas flux is small when the impurities inside the filter bag 18 are more, the motor 23 is started to drive the spiral scraper 17 to clean the filter bag 18, improve the applicability of the device, and reduce the situation that the exhaust gas flux decreases due to the excessive accumulation of impurities inside the filter bag 18 caused by long-time continuous operation.

[0026] As Figures 1 to 5As shown, the top of the support plate 12 is fixed with a plurality of second inclined grooves 3; the bottom of the first connecting disc 13 is provided with a plurality of inclined blocks 31; the top of the processing tank 1 is fixed with a ring plate 32; the top of the ring plate 32 is detachably installed with a closing plate 33; the inside of the ring plate 32 is installed with a spring 34; the bottom of the filter bag 18 is fixed with a connecting ring 35; the connecting ring 35 is installed at the bottom of the spring 34; during operation, when the first connecting disc 13 rotates, the second inclined groove 3 can cooperate with the inclined block 31 to make the first connecting disc 13 repeatedly rise and fall, when the first connecting disc 13 rises, it can drive the shaft rod 15 to rise, so that the top of the shaft rod 15 abuts against the top of the filter bag 18 to drive the filter bag 18 to rise, when the second inclined groove 3 sinks into the inside of the inclined block 31, the first connecting disc 13 and the shaft rod 15 will fall, at this time, the filter bag 18 will quickly fall under the elastic force of the spring 34, and through the collision between the connecting ring 35 and the processing tank 1, the filter bag 18 will vibrate, so that part of the impurities attached to the middle of the filter bag 18 are shaken off, through the above structure, when the motor 23 is started to clean the inside of the filter bag 18, the filter bag 18 can vibrate and shake out part of the impurities in the filter hole, further reducing the situation that the exhaust volume decreases due to the filter hole of the filter bag 18 being blocked.

[0027] As shown in Figures 1 to 2 , the outside wall of the processing tank 1 is fixed with a pair of electric cylinders 4; the output end of the electric cylinder 4 is fixed with a collection box 41; the top of the processing tank 1 is provided with a pair of material taking openings 42; during operation, after stopping desulfurization, a pair of electric cylinders 4 are started to make a pair of collection boxes 41 approach each other and move to below the filter bag 18, then the motor 23 is started to drive the spiral scraper 17 to clean the inside wall of the filter bag 18, so that the impurities on the inside wall of the filter bag 18 are brushed off into a pair of collection boxes 41, after the filter bag 18 is cleaned, the collection boxes 41 are moved to below the material taking openings 42 and the material taking openings 42 are opened to clean the collection boxes 41, through the above structure, the impurities attached to the inside of the filter bag 18 can be cleaned without disassembling the filter bag 18, reducing the inconvenience caused by disassembling the filter bag 18, and improving the use convenience of the device.

[0028] As shown in Figure 4 , a plurality of rotating rollers 5 are rotatably connected to the side wall of the limiting plate 2; the plurality of rotating rollers 5 are evenly distributed on the side wall of the limiting plate 2; when the limiting plate 2 slides in the middle of the second connecting disc 14, the side wall of the limiting plate 2 will slide and rub with the inside wall of the second connecting disc 14, so that the vane plate 16 needs to bear greater airflow impact to drive the shaft rod 15 to rotate, through the setting of the plurality of rotating rollers 5, the sliding friction between the limiting plate 2 and the second connecting disc 14 can be changed into rolling friction, reducing the friction between the components, so that the shaft rod 15 can rotate by itself under the condition that the gas flux is smaller, and the wear of the components is reduced, improving the service life of the components.

[0029] As shown in Figure 5As shown, the top of the processing tank 1 is fixedly connected with a baffle 6; the baffle 6 is arranged at the exhaust port of the processing tank 1; through the above structure, the situation that impurities enter below the spring 34 can be reduced during the up and down movement of the spring 34, and then the impurities are accumulated on the processing tank 1 below the spring 34 and are compacted by the impact of the spring 34, which causes the stroke of the spring 34 to gradually decrease and the vibration effect to decrease.

[0030] As shown, the middle of the filter bag 18 is fixedly connected with a framework 7; the framework 7 is fixedly connected to the outer side wall of the filter bag 18; through the above structure, the vibration intensity generated when the spring 34 and the processing tank 1 collide can be better conducted to the filter bag 18, and the cleaning effect on the filter bag 18 is improved. Figures 1 to 5

[0031] ​When working, when the flue gas is subjected to dry desulfurization, the gas after desulfurization is discharged through the filter bag 18, and the impurity particles in the gas are difficult to discharge because they are blocked by the filter bag 18. When the gas flows through the blade plate 16, the continuous impact of the gas on the surface of the plurality of blade plates 16 drives the blade plate 16 and the shaft rod 15 to rotate, thereby driving the spiral scraper 17 to rotate and scraping and cleaning the impurities on the inner side wall of the filter bag 18, thereby reducing the accumulation of impurities that block the filter holes of the filter bag 18 and cause the exhaust effect to decrease. When the motor 23 is not started, the shaft rod 15 rotates with the gas flow, and at this time the second connecting disc 14 rotates on the first connecting disc 13. The bottom of the plurality of limiting plates 2 rises above the first connecting disc 13 along the first inclined groove 21 and then falls into the next first inclined groove 21. When the impurities accumulated inside the filter bag 18 are more, the impurities are easily attached to the inner side wall of the filter bag 18 again with the flow of the gas flow, and the gas flow decreases, which reduces the rotation speed of the shaft rod 15. At this time, the motor 23 drives the first connecting disc 13 to rotate through the power output rod 24 and the transmission rod 22. At this time, the bottom of the limiting plate 2 falls into the first inclined groove 21 and is pushed by the other side of the first inclined groove 21, so that the second connecting disc 14 can rotate with the first connecting disc 13, thereby driving the spiral scraper 17 to clean the impurities on the inner side wall of the filter bag 18. When the first connecting disc 13 rotates, the second inclined groove 3 can cooperate with the inclined block 31 to make the first connecting disc 13 repeatedly rise and fall. When the first connecting disc 13 rises, it drives the shaft rod 15 to rise, so that the top of the shaft rod 15 abuts against the top of the filter bag 18 to drive the filter bag 18 to rise. When the second inclined groove 3 falls into the inclined block 31, the first connecting disc 13 and the shaft rod 15 fall. At this time, the filter bag 18 rapidly falls under the elastic force of the spring 34, and the filter bag 18 vibrates through the collision between the connecting ring 35 and the treatment tank 1, thereby shaking off part of the impurities attached to the middle of the filter bag 18. After stopping desulfurization, a pair of electric cylinders 4 are started to move a pair of collection boxes 41 close to each other and below the filter bag 18, and then the motor 23 is started to drive the spiral scraper 17 to clean the inner side wall of the filter bag 18, so that the impurities on the inner side wall of the filter bag 18 are brushed off into the pair of collection boxes 41. After the filter bag 18 is cleaned, the collection boxes 41 are moved below the material taking port 42 and the material taking port 42 is opened to clean the collection boxes 41. When the limiting plate 2 slides in the middle of the second connecting disc 14, the sidewall of the limiting plate 2 will slide with the inner sidewall of the second connecting disc 14, so that the blade plate 16 needs to bear greater gas flow impact to drive the shaft rod 15 to rotate. Through the arrangement of the plurality of rotating rollers 5, the sliding friction between the limiting plate 2 and the second connecting disc 14 can be converted into rolling friction.

[0032] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A calcium-based dry desulphurization device comprising a treatment tank (1); characterized by the fact that: The inner part of the processing tank (1) is fixedly connected with a support plate (12); the top of the support plate (12) is provided with a first connecting disc (13); the top of the first connecting disc (13) is rotatably connected with a second connecting disc (14); the top of the second connecting disc (14) is fixedly connected with a shaft rod (15); the middle part of the shaft rod (15) is fixedly connected with a plurality of blade plates (16); the middle part of the shaft rod (15) is fixedly connected with a spiral scraper (17); the top exhaust port of the processing tank (1) is provided with a filter bag (18); the spiral scraper (17) is located inside the filter bag (18).

2. A calcium-based dry desulfurization device according to claim 1, characterized in that: The middle part of the second connecting disc (14) is slidably connected with a plurality of limiting plates (2); the top of the first connecting disc (13) is provided with a plurality of first inclined grooves (21); the middle part of the support plate (12) is rotatably connected with a transmission rod (22); the outer side wall of the processing tank (1) is fixedly connected with a motor (23); the output end of the motor (23) is fixedly connected with a power output rod (24); the power output rod (24) and the transmission rod (22) are driven in cooperation through bevel gears; the first connecting disc (13) is slidably connected to the top of the transmission rod (22).

3. A calcium-based dry desulfurization device according to claim 1, characterized in that: The top of the support plate (12) is fixedly connected with a plurality of second inclined grooves (3); the bottom of the first connecting disc (13) is provided with a plurality of inclined blocks (31); the top of the processing tank (1) is fixedly connected with a ring plate (32); the top of the ring plate (32) is detachably provided with a closing plate (33); the inside of the ring plate (32) is provided with a spring (34); the bottom of the filter bag (18) is fixedly connected with a connecting ring (35); the connecting ring (35) is installed at the bottom of the spring (34).

4. A calcium-based dry desulfurization device according to claim 1, characterized in that: The outer side wall of the processing tank (1) is fixedly connected with a pair of electric cylinders (4); the output end of the electric cylinder (4) is fixedly connected with a collecting box (41); the top of the processing tank (1) is provided with a pair of material taking openings (42).

5. A calcium-based dry desulfurization device according to claim 2, characterized in that: The side wall of the limiting plate (2) is rotatably connected with a plurality of rotating rollers (5); a plurality of rotating rollers (5) are evenly arranged on the side wall of the limiting plate (2).

6. A calcium-based dry desulfurization device according to claim 1, characterized in that: The top of the processing tank (1) is fixedly connected with a baffle (6); the baffle (6) is arranged at the exhaust port of the processing tank (1).

7. A calcium-based dry desulfurization device according to claim 1, characterized in that: The middle part of the filter bag (18) is fixedly connected with a framework (7); the framework (7) is fixedly connected to the outer side wall of the filter bag (18). The middle part of the filter bag (18) is fixedly connected with a framework (7); the framework (7) is fixedly connected to the outer side wall of the filter bag (18).

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