Device for reducing sulfide emission of flue gas

Abstract

The utility model relates to a device for reducing sulfide emission in flue gas, which comprises an accommodating box, a medicament box is fixedly mounted at the top of the accommodating box, and a first filter box is fixedly mounted in the accommodating box. According to the device for reducing the sulfide emission of the flue gas, firstly, the flue gas is guided into the first filter box through the flue gas inlet pipe, the controller drives the water pump to start, a desulfurization reagent in the reagent box enters the water collecting box and is sprayed out through the high-pressure spray head to reach the first filter box, and then the first motor is started to drive the stirring shaft to rotate, so that the desulfurization reagent and the flue gas are rapidly and uniformly mixed; at the moment, the particles fall on a sieve plate through a water outlet and are guided out through the sieve plate, liquid continuously falls into a dirt collection box, a booster pump starts gas to enter a second filter box through a gas guide pipe, and a second motor starts to drive a rotating rod and an activated carbon plate to rotate so as to further adsorb sulfur dioxide in the flue gas; and the filtered gas is led out by the smoke exhaust pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas desulfurization, in particular to a device for reducing sulfide emission in flue gas. Background Art

[0002] Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gas or other industrial waste gas so that the gas meets emission standards, avoids air pollution, and thus achieves the purpose of protecting the environment.

[0003] For example, a flue gas desulfurization device for a biogas generator set with Chinese patent number CN214635349U is disclosed. The flue gas of the utility model is discharged from the smoke conveying pipe through the conduit into the chamber of the purification box, and the water pump is started and used. The water pump extracts the treatment agent (SY9 desulfurizer) in the water tank to the spray plate for atomization and sprinkling, so that the atomized treatment agent is fully in contact with the flue gas, and adsorbs and catalytically reacts with the sulfide, and the sulfur-rich crystals or particles are produced and fall on the receiving plate of the sieve plate for recovery. Other liquids fall into the inner bottom of the chamber through the sieve, and an exhaust pipe with a fan is used to discharge the flue gas, thereby reducing the content of sulfide in the flue gas and achieving the effect of improving the flue gas desulfurization. However, when the device is in use, it can only perform a single filtration, and the flue gas and the desulfurizer are easily mixed unevenly during filtration, resulting in poor desulfurization effect. At the same time, the sieve is easily blocked by impurities, thereby further reducing the desulfurization effect. Therefore, a device for reducing sulfide emissions from flue gas is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a device for reducing sulfide emissions from flue gas, which has the advantage of good desulfurization effect and solves the problem that the device can only perform a single filtration when in use, and the flue gas and the desulfurizer are easily mixed unevenly during filtration, resulting in poor desulfurization effect. At the same time, the screen is easily clogged by impurities, thereby further reducing the desulfurization effect.

[0005] To achieve the above object, the utility model provides the following technical solution: a device for reducing sulfide emission from flue gas, comprising a containing box, a reagent box is fixedly installed on the top of the containing box, a first filter box is fixedly installed inside the containing box, a second filter box is fixedly installed inside the containing box, and a desulfurization mechanism is arranged inside the containing box;

[0006] The desulfurization mechanism includes a water collecting box, a high-pressure nozzle, a first motor, a stirring shaft, a sieve plate, a second motor, a rotating rod and an activated carbon plate. The water collecting box is fixedly installed inside the containing box, the high-pressure nozzle is fixedly installed on the bottom of the water collecting box, the first motor is fixedly installed outside the containing box, the stirring shaft is fixedly installed at the output shaft of the first motor, the sieve plate is installed inside the containing box, the second motor is fixedly installed outside the containing box, the rotating rod is fixedly connected to the output shaft of the second motor, and the activated carbon plate is fixedly connected to the outside of the rotating rod.

[0007] Furthermore, a water pump is fixedly installed on the top of the containing box, and a water pipe is fixedly installed on the right side of the medicine box. The side of the water pipe away from the medicine box is interconnected with the top of the water pump.

[0008] Furthermore, a filter screen is installed inside the first filter box, and a smoke inlet pipe is fixedly connected to the right side of the receiving box.

[0009] Furthermore, an air duct is fixedly installed at the bottom of the first filter box, a booster pump is fixedly installed outside the receiving box, and a side of the air duct away from the first filter box is connected to the bottom and top of the booster pump.

[0010] Furthermore, a smoke exhaust pipe is fixedly connected to the bottom of the second filter box, a dirt collecting box is fixedly installed inside the containing box, a dirt exhaust pipe is fixedly connected to the right side of the dirt collecting box, and the stirring shaft extends from the side away from the first motor to the inside of the first filter box.

[0011] Furthermore, the sieve plate is an inclined surface, and the right side of the sieve plate extends to the outside of the containing box.

[0012] Furthermore, the side of the rotating rod away from the second motor extends to the interior of the second filter box, the top of the first filter box is provided with a water inlet, and the bottom of the first filter box is provided with a water outlet.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The device for reducing sulfide emission from flue gas filters the flue gas by arranging a containing box, and by arranging a reagent box, a desulfurization agent is stored inside the reagent box, and the desulfurized flue gas can be temporarily stored by arranging a first filter box and a second filter box. By arranging a desulfurization mechanism, the various structures of the desulfurization mechanism cooperate with each other, thereby achieving multiple filtration, better desulfurization effect, and higher desulfurization efficiency.

[0015] 2. The device for reducing sulfide emissions from flue gas is provided with a water collecting box. When the controller drives the water pump to start, the desulfurization reagent in the reagent box will enter the water collecting box and be sprayed out by the high-pressure nozzle. By providing a first motor, the controller drives the first motor to start and drive the stirring shaft to rotate, so that the flue gas entering the first filter box is quickly mixed with the reagent, thereby improving the desulfurization efficiency. Sulfide is adsorbed and catalytically reacted to produce sulfur-rich crystals or particles. At this time, the particles fall on the sieve plate through the water outlet and are discharged by the sieve plate, and the liquid continues to fall into the dirt collecting box. By providing a second motor, when the controller drives the second motor to start, it can drive the rotating rod and the activated carbon plate to rotate to further adsorb sulfur dioxide in the flue gas, and the filtered gas can be discharged from the second filter box through the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the desulfurization mechanism of the utility model.

[0019] In the figure: 1 containing box, 2 reagent box, 3 first filter box, 4 second filter box, 5 desulfurization mechanism, 501 water collecting box, 502 high pressure nozzle, 503 first motor, 504 stirring shaft, 505 sieve plate, 506 second motor, 507 rotating rod, 508 activated carbon plate, 6 water pump, 7 filter screen, 8 smoke inlet pipe, 9 dirt collecting box. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 , a device for reducing sulfide emission from flue gas, comprising a containing box 1, a reagent box 2 is fixedly installed on the top of the containing box 1, a first filter box 3 is fixedly installed inside the containing box 1, a second filter box 4 is fixedly installed inside the containing box 1, and a desulfurization mechanism 5 is arranged inside the containing box 1;

[0022] The desulfurization mechanism 5 includes a water collecting box 501, a high-pressure nozzle 502, a first motor 503, a stirring shaft 504, a sieve plate 505, a second motor 506, a rotating rod 507 and an activated carbon plate 508. The water collecting box 501 is fixedly installed inside the containing box 1, the high-pressure nozzle 502 is fixedly installed at the bottom of the water collecting box 501, the first motor 503 is fixedly installed outside the containing box 1, the stirring shaft 504 is fixedly installed at the output shaft of the first motor 503, the sieve plate 505 is installed inside the containing box 1, the second motor 506 is fixedly installed outside the containing box 1, the rotating rod 507 is fixedly connected to the output shaft of the second motor 506, and the activated carbon plate 508 is fixedly connected to the outside of the rotating rod 507.

[0023] exist Figure 1 and Figure 2 In the figure, a water pump 6 is fixedly installed on the top of the containing box 1, and a water pipe is fixedly installed on the right side of the medicine box 2. The side of the water pipe away from the medicine box 2 is interconnected with the top of the water pump 6. By setting up the medicine box 2, the desulfurization reagent is stored inside the medicine box 2 and is introduced into the first filter box 3 through the water pump 6.

[0024] exist Figure 1 and Figure 2 In the figure, a filter screen 7 is installed inside the first filter box 3, and a smoke inlet pipe 8 is fixedly connected to the right side of the receiving box 1. The filter screen 7 is provided to preliminarily filter impurities in the smoke to prevent the impurities from clogging the screen plate 505.

[0025] exist Figure 1 and Figure 3 In the embodiment, an air duct is fixedly installed at the bottom of the first filter box 3, a booster pump is fixedly installed outside the receiving box 1, and a side of the air duct away from the first filter box 3 is connected to the bottom and top of the booster pump.

[0026] exist Figure 2 and Figure 3 In the embodiment, a desulfurization mechanism 5 is provided, and the various structures of the desulfurization mechanism 5 cooperate with each other, so as to achieve the purpose of multiple filtration, better desulfurization effect and higher desulfurization efficiency. A smoke exhaust pipe is fixedly connected to the bottom of the second filter box 4, and a sewage collecting box 9 is fixedly installed inside the receiving box 1. A sewage exhaust pipe is fixedly connected to the right side of the sewage collecting box 9, and the stirring shaft 504 extends from the side away from the first motor 503 to the inside of the first filter box 3.

[0027] exist Figure 2 and Figure 3 In the embodiment, the sieve plate 505 is inclined, and the right side of the sieve plate 505 extends to the outside of the containing box 1. The sieve plate 505 is inclined, and the sulfide undergoes adsorption and catalytic reaction to produce sulfur-rich grains or particles. At this time, the particles fall on the sieve plate 505 through the water outlet and are discharged by the sieve plate 505, and the liquid continues to fall into the dirt collecting box 9.

[0028] exist Figure 2 and Figure 3 In the embodiment, the rotating rod 507 extends to the inside of the second filter box 4 at a side away from the second motor 506 . A water inlet is provided at the top of the first filter box 3 , and a water outlet is provided at the bottom of the first filter box 3 .

[0029] In summary, when the device for reducing sulfide emissions from flue gas is used, first, the flue gas is introduced into the first filter box 3 through the smoke inlet pipe 8, and the impurities in the flue gas are initially filtered through the filter screen 7. At this time, the controller drives the water pump 6 to start, and the desulfurization agent in the reagent box 2 will enter the water collecting box 501 and be sprayed out by the high-pressure nozzle 502 to reach the first filter box 3. Then the controller drives the first motor 503 to start, driving the stirring shaft 504 to rotate, so that the desulfurization agent and the flue gas are quickly mixed, and the sulfide is adsorbed and catalytically reacted to produce sulfur-rich grains or particles. At this time, the particles fall on the sieve plate 505 through the water outlet and are discharged from the sieve plate 505, and the liquid continues to fall into the dirt collecting box 9. After that, the booster pump starts the gas to enter the second filter box 4 through the air duct. Finally, the controller drives the second motor 506 to start, which can drive the rotating rod 507 and the activated carbon plate 508 to rotate to further adsorb sulfur dioxide in the flue gas. The filtered gas can be discharged from the second filter box 4 through the exhaust pipe.

[0030] The electrical components appearing in this article are all connected to the external controller and 220V AC power, and the controller can be a conventional known device that plays a control role such as a computer. The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] 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. A device for reducing sulfide emissions from flue gas, comprising a containing box (1), characterized in that: A reagent box (2) is fixedly installed on the top of the containing box (1), a first filter box (3) is fixedly installed inside the containing box (1), a second filter box (4) is fixedly installed inside the containing box (1), and a desulfurization mechanism (5) is arranged inside the containing box (1); The desulfurization mechanism (5) comprises a water collecting box (501), a high-pressure nozzle (502), a first motor (503), a stirring shaft (504), a sieve plate (505), a second motor (506), a rotating rod (507) and an activated carbon plate (508); the water collecting box (501) is fixedly installed inside the containing box (1); the high-pressure nozzle (502) is fixedly installed at the bottom of the water collecting box (501); the first motor (503) is fixedly installed outside the containing box (1); the stirring shaft (504) is fixedly installed at the output shaft of the first motor (503); the sieve plate (505) is installed inside the containing box (1); the second motor (506) is fixedly installed outside the containing box (1); the rotating rod (507) is fixedly connected to the output shaft of the second motor (506); and the activated carbon plate (508) is fixedly connected to the outside of the rotating rod (507).

2. The device for reducing sulfide emissions from flue gas according to claim 1, characterized in that: A water pump (6) is fixedly installed on the top of the containing box (1), and a water pipe is fixedly installed on the right side of the medicine box (2), and the side of the water pipe away from the medicine box (2) is connected to the top of the water pump (6).

3. The device for reducing sulfide emissions from flue gas according to claim 1, characterized in that: A filter screen (7) is installed inside the first filter box (3), and a smoke inlet pipe (8) is fixedly connected to the right side of the containing box (1).

4. The device for reducing sulfide emissions from flue gas according to claim 1, characterized in that: An air duct is fixedly mounted on the bottom of the first filter box (3), a booster pump is fixedly mounted on the outside of the containing box (1), and a side of the air duct away from the first filter box (3) is connected to the bottom and top of the booster pump.

5. The device for reducing sulfide emission in flue gas according to claim 1, characterized in that: The bottom of the second filter box (4) is fixedly connected to a smoke exhaust pipe, the interior of the containing box (1) is fixedly installed with a sewage collecting box (9), the right side of the sewage collecting box (9) is fixedly connected to a sewage exhaust pipe, and the stirring shaft (504) extends from a side away from the first motor (503) to the interior of the first filter box (3).

6. The device for reducing sulfide emission in flue gas according to claim 1, characterized in that: The sieve plate (505) is in the form of an inclined surface, and the right side of the sieve plate (505) extends to the outside of the containing box (1).

7. The device for reducing sulfide emission in flue gas according to claim 1, characterized in that: The rotating rod (507) extends to the interior of the second filter box (4) at a side away from the second motor (506); a water inlet is provided at the top of the first filter box (3); and a water outlet is provided at the bottom of the first filter box (3).

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