SDS (Sodium Dodecyl Sulfate) reaction system for improving desulfurization efficiency

Abstract

The invention discloses an SDS reaction system capable of improving desulfurization efficiency, and relates to the technical field of flue gas purification, the SDS reaction system comprises a grinding machine, a stock bin, a reactor and a dust remover, the reactor comprises an outer shell and an inner shell, the SDS reaction system further comprises a powder spraying mechanism, the powder spraying mechanism is rotatably arranged at the bottom of the inner wall of the inner shell, and the powder spraying mechanism comprises a feeding pipe; a plurality of spray heads are arranged on the periphery of the feeding pipe, and spoilers are fixedly connected to the two sides of the surface of the feeding pipe; the driving assembly is arranged at the top of the reactor and used for driving the feeding pipe to rotate, according to the SDS reaction system capable of improving the desulfurization efficiency, the driving assembly drives the feeding pipe to rotate, so that the multiple nozzles on the feeding pipe can rotate to spray out a desulfurization agent, the desulfurization agent is in full contact with flue gas entering the reactor, the utilization rate of the desulfurization agent is increased, and the desulfurization efficiency is improved. When the feeding pipe rotates, the spoilers can promote the mixing of the flue gas and the desulfurizing agent, so that the desulfurizing effect is better, and the desulfurizing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flue gas purification, in particular to an SDS reaction system for improving desulfurization efficiency. Background Art

[0002] At present, in the process of flue gas emission from gas boilers in self-contained power plants, in order to prevent SO2 from failing to meet emission standards and posing environmental risks, it is usually necessary to install flue gas desulfurization equipment for the boiler. Among them, SDS dry desulfurization uses adsorbents to adsorb sulfur dioxide in the flue gas, and converts sulfur dioxide into solid products such as sulfate or calcium hydrogen sulfate through a series of chemical reactions. The flue gas is then filtered by a bag filter and meets emission standards.

[0003] Reference patent publication number is CN210613343U, which is a high-efficiency SDS dry desulfurization device. The prior art can improve the desulfurization efficiency of the SDS dry desulfurization process and the utilization rate of the desulfurizer, so that it can meet the ultra-low emission requirements of outlet SO2 under medium-high sulfur flue gas working conditions;

[0004] During use of the above patent, the desulfurizer is directly transported by a delivery pump through a feed pipe to the desulfurization reactor to react with the flue gas. This method makes it difficult for the desulfurizer to be evenly dispersed in the reactor and fully mixed with the flue gas, resulting in waste of the desulfurizer, low utilization rate, poor desulfurization effect, and reduced desulfurization efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an SDS reaction system for improving desulfurization efficiency, which solves the problem that the desulfurizer is difficult to be evenly dispersed in the reactor, resulting in waste of the desulfurizer, low utilization rate, poor desulfurization effect and reduced desulfurization efficiency.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an SDS reaction system for improving desulfurization efficiency, comprising a grinder, a silo, a reactor and a dust collector, wherein the reactor comprises an outer shell and an inner shell, and further comprises:

[0007] A powder spraying mechanism is rotatably arranged at the bottom of the inner wall of the inner shell, and the powder spraying mechanism includes a feeding pipe, a plurality of spray heads are arranged around the feeding pipe, and spoilers are fixedly connected to both sides of the surface of the feeding pipe;

[0008] A driving assembly is arranged at the top of the reactor and is used to drive the feeding pipe to rotate;

[0009] The dust cover is arranged on one side of the nozzle through the mounting assembly to intercept foreign particles in the flue gas.

[0010] Preferably, the driving assembly includes a motor fixed to the top of the reactor through a support frame, one end of the motor output shaft is fixedly connected to a rotating shaft rotatably arranged with the top of the reactor, and the surface of the rotating shaft is fixedly connected to a first gear, and the surface of the feeding pipe is fixedly connected to a second gear meshing with the first gear.

[0011] Preferably, the mounting assembly includes a fixing rod fixed to the surface of the dust cover plate, a movable groove is opened inside the fixing rod, and baffles are slidably arranged on the upper and lower sides of the inner wall of the movable groove, a spring is fixedly connected between the two baffles, and a protrusion is fixedly connected to the opposite sides of the two baffles.

[0012] Preferably, a limiting plate is fixedly connected to the surface of the nozzle, and a through hole for the fixing rod to pass through is provided on the surface of the limiting plate.

[0013] Preferably, a sealing cover plate is provided on the surface of the outer shell through bolt threads, a sealing door is provided on the surface of the inner shell, and a support rod is fixedly connected between the sealing cover plate and the sealing door.

[0014] Preferably, the inner shell is fixed between two sides of the inner wall of the outer shell, an electric heating plate is fixedly connected to the outer side of the inner shell, and a temperature sensor is fixedly connected to one side of the reactor.

[0015] Preferably, one side of the reactor is connected to the air inlet of the dust collector through a flue gas duct, the bottom of the grinder is fixedly connected to a discharge channel, and the bottom of the discharge channel is connected to the top of the silo, the top of the grinder is connected to a feed pipeline, a fan is provided at the bottom of the silo through a pipeline, and the air outlet of the fan is connected to an air outlet pipe, and the bottom end of the air outlet pipe is rotatably connected to the top of the feed pipe.

[0016] Preferably, a load-bearing plate is fixedly connected to the bottom of the inner wall of the silo, and the bottom of the load-bearing plate is connected to a discharge pipe, and a weighing sensor is arranged at the bottom of the load-bearing plate.

[0017] The present invention provides an SDS reaction system for improving desulfurization efficiency. It has the following beneficial effects:

[0018] (1) The SDS reaction system for improving desulfurization efficiency drives the feed pipe to rotate through a driving component, so that multiple nozzles on the feed pipe can rotate to spray the desulfurizer, which is fully in contact with the flue gas entering the reactor, thereby improving the utilization rate of the desulfurizer. When the feed pipe rotates, the spoiler can promote the mixing of the flue gas and the desulfurizer, thereby improving the desulfurization effect and improving the desulfurization efficiency.

[0019] (2) The SDS reaction system for improving desulfurization efficiency has a dust cover plate outside the nozzle, so that the nozzle can prevent impurity particles in the flue gas from clogging the nozzle while spraying powder. The installation assembly is easy to quickly install and remove the dust cover plate, which is simple to operate, making it easy to clean or replace it, avoiding clogging that affects the powder spraying effect, and making it more convenient to use.

[0020] (3) In the SDS reaction system for improving desulfurization efficiency, the desulfurizer is crushed into ultrafine powder by a grinder before entering the silo, so that it can fully contact with the flue gas and improve the desulfurization effect. The weighing sensor can also be used to detect the amount of desulfurizer in the silo, so that it can be replenished in time, avoid shutdown due to lack of materials, and improve overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0023] Figure 3 is a cross-sectional view of the reactor structure of the present invention;

[0024] Figure 4 This is a disassembled diagram of the nozzle and dust cover structure of the present invention;

[0025] Figure 5 is a cross-sectional view of the fixing rod structure of the present invention;

[0026] Figure 6 It is a side view of the reactor structure of the present invention;

[0027] Figure 7 It is a cross-sectional view of the silo structure of the present invention.

[0028] In the figure: 1. grinder; 2. silo; 3. reactor; 301. outer shell; 302. inner shell; 4. dust collector; 5. powder spraying mechanism; 51. feeding pipe; 52. nozzle; 53. spoiler; 6. dust cover; 7. support frame; 8. motor; 9. rotating shaft; 10. first gear; 11. second gear; 12. fixing rod; 13. movable groove; 14. baffle; 15. spring; 16. bump; 17. limit plate; 18. through hole; 19. sealing cover; 20. sealing door; 21. support rod; 22. electric heating plate; 23. temperature sensor; 24. flue gas duct; 25. discharge channel; 26. feed pipe; 27. fan; 28. air outlet pipe; 29. ​​load-bearing plate; 30. discharge pipe; 31. weighing sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0030] Embodiment 1

[0031] See also Figures 1 to 3 As shown, the present invention provides an SDS reaction system for improving desulfurization efficiency, including a grinder 1, a silo 2, a reactor 3 and a dust collector 4, the reactor 3 includes an outer shell 301 and an inner shell 302, the inner shell 302 is fixed between the two sides of the inner wall of the outer shell 301, the outer side of the inner shell 302 is fixedly connected with an electric heating plate 22 to heat the reactor 3, one side of the reactor 3 is fixedly connected with a temperature sensor 23, the detection head of the temperature sensor 23 extends to the inside of the inner shell 302, and is used to detect the temperature inside the inner shell 302, so as to facilitate the control of the internal temperature, and also includes:

[0032] The powder spraying mechanism 5 is rotatably arranged at the bottom of the inner wall of the inner shell 302. The powder spraying mechanism 5 includes a feeding pipe 51 rotatably arranged at the bottom of the inner wall of the inner shell 302. The feeding pipe 51 is made of stainless steel. A plurality of nozzles 52 are arranged around the feeding pipe 51. Both sides of the surface of the feeding pipe 51 are fixedly connected with spoilers 53. The spoilers 53 can promote the mixing of flue gas and desulfurizer, and the desulfurization effect is better.

[0033] A driving assembly is arranged at the top of the reactor 3 and is used to drive the feeding tube 51 to rotate. The driving assembly includes a motor 8 fixed to the top of the reactor 3 through a support frame 7. One end of the output shaft of the motor 8 is fixedly connected to a rotating shaft 9 rotatably arranged at the top of the reactor 3, and a first gear 10 is fixedly connected to the surface of the rotating shaft 9. A second gear 11 meshing with the first gear 10 is fixedly connected to the surface of the feeding tube 51;

[0034] The dust cover plate 6 is arranged on one side of the nozzle 52 through a mounting assembly, and is used to intercept foreign particles in the flue gas.

[0035] Through the arrangement of the above structure, the driving assembly drives the feed pipe 51 to rotate, so that the multiple nozzles 52 on the feed pipe 51 can rotate to spray the desulfurizer, which is fully in contact with the flue gas entering the reactor 3, thereby improving the utilization rate of the desulfurizer. While the feed pipe 51 is rotating, the spoiler 53 can promote the mixing of the flue gas and the desulfurizer, thereby improving the desulfurization effect and the efficiency of desulfurization.

[0036] Embodiment 2

[0037] Based on Example 1, please refer to Figures 3 to 6 As shown, the specific improvements are as follows: the mounting assembly includes a fixing rod 12 fixed to the surface of the dust cover 6, a movable groove 13 is provided inside the fixing rod 12, and baffles 14 are slidably provided on the upper and lower sides of the inner wall of the movable groove 13, the baffles 14 prevent the spring 15 from popping out of the movable groove 13, a spring 15 is fixedly connected between the two baffles 14, and a protrusion 16 is fixedly connected to the opposite sides of the two baffles 14, a limiting plate 17 is fixedly connected to the surface of the nozzle 52, and a through hole 18 is provided on the surface of the limiting plate 17 for the fixing rod 12 to pass through;

[0038] A sealing cover plate 19 is provided on the surface of the outer shell 301 through bolt threads, a sealing door 20 is provided on the surface of the inner shell 302 , and a support rod 21 is fixedly connected between the sealing cover plate 19 and the sealing door 20 .

[0039] Through the arrangement of the above structure, after the bolts are screwed out of the sealing cover 19, the sealing door 20 can be opened together, and then the protrusion 16 can be pressed into the movable groove 13, so that the dust cover 6 can be removed from the nozzle 52. The operation is simple and fast, and it is convenient to clean or replace it, avoiding blockage that affects the powder spraying effect, and it is more convenient to use.

[0040] Embodiment 3

[0041] In conjunction with Example 1 and Example 2, please refer to Figure 1 and Figure 7 As shown, the specific improvements are as follows: one side of the reactor 3 is connected to the air inlet of the dust collector 4 through the flue gas duct 24, the bottom of the grinder 1 is fixedly connected with a discharge channel 25, and the bottom of the discharge channel 25 is connected to the top of the silo 2, the top of the grinder 1 is connected with a feed pipe 26, and the feed pipe 26 is connected to an external feed system, and a fan 27 is provided at the bottom of the silo 2 through a pipeline, and the air outlet of the fan 27 is connected with an air outlet pipe 28, the air outlet pipe 28 is made of stainless steel, and the bottom end of the air outlet pipe 28 is rotatably connected to the top of the feed pipe 51 through a bearing;

[0042] A load-bearing plate 29 is fixedly connected to the bottom of the inner wall of the silo 2 , and a discharge pipe 30 is connected to the bottom of the load-bearing plate 29 . A regulating valve is arranged inside the discharge pipe 30 , and a weighing sensor 31 is arranged at the bottom of the load-bearing plate 29 .

[0043] Through the arrangement of the above structure, the desulfurizer is crushed into ultrafine powder by the grinder 1 before entering the silo 2, so as to fully contact with the flue gas and improve the desulfurization effect. The weight of the desulfurizer in the silo 2 can be detected by the arrangement of the weighing sensor 31. The decrease in weight indicates that the desulfurizer is constantly decreasing. When the weight is lower than the threshold, the external control system receives a signal and automatically starts the external feeding system, so as to facilitate timely replenishment, avoid shutdown due to lack of materials, and improve overall work efficiency.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment compatible with the equipment can be used.

[0045] When in use, the feeding pipeline 26 conveys the desulfurizer to the grinder 1 to be ground into Ca(OH)2 ultrafine powder, and then enters the silo 2 through the discharge channel 25 for storage. The conveying fan 27 conveys the ultrafine powder to the feeding pipe 51 through the pipeline. The feeding pipe 51 sprays powder into the reactor 3 through the nozzles 52 arranged around it. While spraying powder, the motor 8 is started to drive the rotating shaft 9 and the first gear 10 to rotate. The first gear 10 drives the feeding pipe 51 to rotate through the second gear 11 meshing therewith, so that it can rotate to spray the desulfurizer and fully contact with the flue gas entering the reactor 3. When the feeding pipe 51 rotates, the spoiler 53 can promote the mixing of the flue gas and the desulfurizer, and the desulfurization effect is better. During desulfurization, the electric heating plate 22 is used to heat the inside of the reactor 3, and the temperature sensor 23 detects the temperature inside the inner shell 302, which is convenient for controlling the internal temperature. The flue gas after desulfurization enters the dust collector 4 for dust removal treatment to improve the purification effect.

[0046] While the nozzle 52 is spraying powder, the dust cover 6 arranged on the outside can prevent impurity particles in the flue gas from clogging the nozzle 52, and by unscrewing the bolts, the sealing cover 19 can be opened to expose the internal structure, and then by pressing the protruding block 16 on the fixed rod 12, the block 16 squeezes the spring 15 and completely enters the movable groove 13, so that the dust cover 6 can drive the fixed rod 12 to move out of the limit plate 17, so that the dust cover 6 can be quickly loaded and unloaded, and it is convenient to clean or replace it to avoid clogging. The weight of the desulfurizer in the silo 2 is detected by the weighing sensor 31. The reduction in weight indicates that the desulfurizer is constantly decreasing. When the weight is too low, the external control system automatically starts the feeding system, and replenishes the silo 2 in time after grinding by the grinder 1 to avoid shutdown due to lack of materials.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An SDS reaction system for improving desulfurization efficiency, comprising a grinder (1), a silo (2), a reactor (3) and a dust collector (4), wherein the reactor (3) comprises an outer shell (301) and an inner shell (302), and is characterized in that: Also includes: A powder spraying mechanism (5) is rotatably arranged at the bottom of the inner wall of the inner shell (302), the powder spraying mechanism (5) comprising a feeding pipe (51), a plurality of spray heads (52) are arranged around the feeding pipe (51), and spoilers (53) are fixedly connected to both sides of the surface of the feeding pipe (51); A driving assembly, arranged at the top of the reactor (3), for driving the feeding pipe (51) to rotate; The dust cover plate (6) is arranged on one side of the nozzle (52) through a mounting assembly and is used to intercept foreign particles in the smoke.

2. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: The driving assembly comprises a motor (8) fixed to the top of the reactor (3) via a support frame (7); one end of the output shaft of the motor (8) is fixedly connected to a rotating shaft (9) rotatably arranged with the top of the reactor (3); a first gear (10) is fixedly connected to the surface of the rotating shaft (9); and a second gear (11) meshing with the first gear (10) is fixedly connected to the surface of the feeding pipe (51).

3. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: The mounting assembly comprises a fixing rod (12) fixed on the surface of the dust cover (6), a movable groove (13) is provided inside the fixing rod (12), and baffles (14) are slidably provided on the upper and lower sides of the inner wall of the movable groove (13), a spring (15) is fixedly connected between the two baffles (14), and a protrusion (16) is fixedly connected to the opposite sides of the two baffles (14).

4. The SDS reaction system for improving desulfurization efficiency according to claim 3, characterized in that: The surface of the nozzle (52) is fixedly connected to a limiting plate (17), and the surface of the limiting plate (17) is provided with a through hole (18) for the fixing rod (12) to pass through.

5. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: A sealing cover plate (19) is provided on the surface of the outer shell (301) via bolt threads, a sealing door (20) is provided on the surface of the inner shell (302), and a support rod (21) is fixedly connected between the sealing cover plate (19) and the sealing door (20).

6. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: The inner shell (302) is fixed between the two sides of the inner wall of the outer shell (301), the outer side of the inner shell (302) is fixedly connected to an electric heating plate (22), and one side of the reactor (3) is fixedly connected to a temperature sensor (23).

7. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: One side of the reactor (3) is connected to the air inlet of the dust collector (4) through a flue gas duct (24); a discharge channel (25) is fixedly connected to the bottom of the grinder (1), and the bottom of the discharge channel (25) is connected to the top of the silo (2); the top of the grinder (1) is connected to a feed pipeline (26); a fan (27) is provided at the bottom of the silo (2) through a pipeline, and the air outlet of the fan (27) is connected to an air outlet pipe (28); the bottom end of the air outlet pipe (28) is rotatably connected to the top of the feed pipe (51).

8. The SDS reaction system for improving desulfurization efficiency according to claim 1, characterized in that: A load-bearing plate (29) is fixedly connected to the bottom of the inner wall of the silo (2), and a discharge pipe (30) is connected to the bottom of the load-bearing plate (29). A weighing sensor (31) is arranged at the bottom of the load-bearing plate (29).

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