CN209771791U

CN209771791U - High-efficient environmental protection flue gas desulfurization device

Info

Publication number: CN209771791U
Application number: CN201920347179.6U
Authority: CN
Inventors: 闫安良; 王义民; 张泽华
Original assignee: Shanxi Gao Yi Iron And Steel Co Ltd
Current assignee: Shanxi Gao Yi Iron And Steel Co Ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2019-12-13
Anticipated expiration: 2029-03-19

Abstract

The utility model discloses a flue gas desulfurization device of high-efficient environmental protection relates to flue gas processing technology field, specifically is a flue gas desulfurization device of high-efficient environmental protection, including smelting iron tower, desulphurization unit, reducing mechanism and cooling tower, it has the flue gas pipe to peg graft in one side of iron tower to smelt, the one end of flue gas pipe is pegged graft in the inside of bag collector, it has the flue gas exit tube to peg graft in one side of bag collector, the outer fixed surface of flue gas exit tube is connected with the fan. This flue gas desulfurization device of high-efficient environmental protection, cooperation setting through ozone intake pipe and (mixing) shaft makes this flue gas desulfurization device of high-efficient environmental protection can be when increasing the gas flow in the in-process that uses, reinforcing reaction effect, the addition of ozone can be very effectual with sulfur dioxide oxidation for sulfur trioxide, react with quick lime and generate calcium sulfate, calcium sulfate is the gypsum, make this flue gas desulfurization device of high-efficient environmental protection possess stronger waste conversion ability.

Description

high-efficient environmental protection flue gas desulfurization device

Technical Field

The utility model relates to a flue gas treatment technical field specifically is a flue gas desulfurization device of high-efficient environmental protection.

Background

Flue gas is a mixture of gas and smoke dust and is the main cause of atmospheric pollution in residential areas. The components of the flue gas are complex, the gas comprises sulfur dioxide, nitrogen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke comprises ash, coal particles, oil drops, pyrolysis products and the like of the fuel.

therefore, the pollution of the flue gas to the environment is the composite pollution of various poisons. The harmfulness of smoke to human bodies is related to the size of particles, most of the harmfulness to human bodies is floating dust with the diameter smaller than 10um, and particularly the highest harmfulness is the floating dust with the diameter of 1-2.5 um.

In the middle of smelting iron equipment, because the high temperature influence in smelting iron environment will discharge a large amount of flue gas, the main component in these flue gases is sulfur dioxide, and sulfur dioxide is very big to the harm of human body to be acid, it is more serious to the corruption of equipment, if the flue gas does not desulfurize in the discharge process, will cause serious pollution to the atmosphere, light then endanger all ring borders, heavy then leads to acid rain, seriously threatens people's life and property safety.

In the prior art of iron smelting, the wet desulphurization technology is often adopted to treat the sulfur dioxide in the flue gas, and although the method has high efficiency, the method has two defects, one of which is that: limestone is not uniformly stirred in the desulfurization device, so that the reaction effect is influenced; the second step is as follows: after the flue gas passes through the alkaline solution, the temperature is greatly reduced, acid mist is possibly formed, and the emission of the treated flue gas is not facilitated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a flue gas desulfurization device of high-efficient environmental protection, to the not enough of prior art, the problem of proposing in the above-mentioned background art has been solved.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a high-efficiency environment-friendly flue gas desulfurization device comprises an iron smelting tower, a desulfurization device, a crushing device and a water cooling tower, wherein a flue gas guide pipe is inserted into one side of the iron smelting tower, one end of the flue gas guide pipe is inserted into a bag type dust collector, a flue gas outlet pipe is inserted into one side of the bag type dust collector, a fan is fixedly connected to the outer surface of the flue gas outlet pipe, one end of the flue gas outlet pipe is inserted into the desulfurization device, a quicklime inlet pipe is inserted into one side of the desulfurization device, a mixing cylinder is fixedly connected to one end of the quicklime inlet pipe, a discharging pipe is inserted into one side of the mixing cylinder, one end of the discharging pipe is inserted into the crushing device, an ozone inlet pipe is inserted into one side of the desulfurization device, a distribution box is fixedly connected to one side of the desulfurization device, a stirring shaft is fixedly connected to one side of the distribution box, and, the interior diapire of slope platform is pegged graft and is had calcium sulfate unloading pipe, desulphurization unit's inside fixedly connected with dust filter screen, desulphurization unit's interior roof fixedly connected with dead lever, the one end fixedly connected with guide plate of dead lever, it has the purification gas exit tube to peg graft in one side of guide plate, the one end of purifying the gas exit tube is pegged graft in heat transfer device's inside, it has the blast pipe to peg graft in heat transfer device's inside, the one end of blast pipe is pegged graft in the inside of chimney.

Optionally, the shape of the guide plate is spiral, and an included angle between the guide plate and the horizontal plane is thirty degrees.

Optionally, the inner bottom wall fixedly connected with mount of reducing mechanism, the pivot has been pegged graft in the inside of mount, the rotary drum has been cup jointed to the surface of pivot, the surface transmission of rotary drum is connected with the material conveyer belt, the platform is smashed to reducing mechanism's inside wall fixedly connected with, smash the top fixedly connected with of platform and smash the roller, one side of material conveyer belt is provided with scrapes the flitch.

Optionally, one side of the crushing device is spliced with a limestone discharge cylinder, one end of the limestone discharge cylinder is spliced on the lower surface of the limestone storage bin, and one side of the limestone storage bin is fixedly connected with a support frame.

Optionally, a circulating water pipe is inserted into the mixing cylinder, a desulfurization device water inlet pipe is inserted into one side of the circulating water pipe, a water control valve is fixedly connected to the outer surface of the desulfurization device water inlet pipe, a heat exchange device is sleeved on the outer surface of the circulating water pipe, and one end of the circulating water pipe is inserted into the cooling water tower.

Optionally, circulating water lumen and purification gas drying chamber have been seted up from a left side to the right side in proper order to heat transfer device's inside, the inside grafting of circulating water lumen has the heat conduction stick, sealed pad has been cup jointed to the surface of heat conduction stick, the one end fixedly connected with heater strip of heat conduction stick, the one end fixed connection of heater strip is at the inner wall of purification gas drying chamber.

(III) advantageous effects

The utility model provides a flue gas desulfurization device of high-efficient environmental protection possesses following beneficial effect:

1. This flue gas desulfurization device of high-efficient environmental protection, cooperation setting through ozone intake pipe and (mixing) shaft, the in-process that makes this flue gas desulfurization device of high-efficient environmental protection can be when increasing the gas flow in the use, the reinforcing reaction effect, the joining of ozone can be very effectual with sulfur dioxide oxidation for sulfur trioxide, react with quick lime and generate calcium sulfate, perhaps just begin to react by sulfur dioxide and quick lime and generate calcium sulfite, again by ozone oxidation, thereby very big increase the probability that sulfur dioxide turned into calcium sulfate, the desulfurization effect has been improved, and calcium sulfate is the gypsum, make this flue gas desulfurization device of high-efficient environmental protection possess stronger waste conversion ability.

2. This flue gas desulfurization device of high-efficient environmental protection, through heat transfer device's setting, make the flue gas after handling can obtain the heating at exhaust in-process, thereby fundamentally has stopped the emergence of the acid mist condition, and the very discharge that is favorable to the flue gas after handling, improved this flue gas desulfurization device of high-efficient environmental protection's feature of environmental protection ability and practicality, and the required heat source of heating process does not need extra cost, only need follow the cooling tower lead the circulating water waste heat can, thereby effectual manufacturing cost that has reduced.

Drawings

FIG. 1 is a schematic view of the process flow structure of the present invention;

FIG. 2 is a schematic view of the desulfurization device of the present invention;

FIG. 3 is a schematic view of the structure of the crushing device of the present invention;

Fig. 4 is the schematic structural diagram of the heat exchange device of the present invention.

In the figure: 1. iron smelting towers; 2. a desulfurization unit; 3. a crushing device; 4. a water cooling tower; 5. a flue gas duct; 6. a flue gas outlet pipe; 7. a fan; 8. feeding quicklime into the pipe; 9. a mixing cylinder; 10. an ozone inlet pipe; 11. a stirring shaft; 12. a calcium sulfate blanking pipe; 13. a dust filter screen; 14. a baffle; 15. a purified gas outlet pipe; 16. a heat exchange device; 17. a chimney; 18. a rotating drum; 19. a material conveying belt; 20. a crushing roller; 21. a limestone storage bin; 22. a circulating water pipe; 23. a water inlet pipe of a desulphurization device; 24. a heat conducting rod; 25. a heating wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a high-efficiency and environment-friendly flue gas desulfurization device comprises an iron smelting tower 1, a desulfurization device 2, a crushing device 3 and a water cooling tower 4, a flue gas guide pipe 5 is inserted into one side of the iron smelting tower 1, one end of the flue gas guide pipe 5 is inserted into a bag type dust collector, a flue gas outlet pipe 6 is inserted into one side of the bag type dust collector, a fan 7 is fixedly connected to the outer surface of the flue gas outlet pipe 6, one end of the flue gas outlet pipe 6 is inserted into the desulfurization device 2, a quicklime inlet pipe 8 is inserted into one side of the desulfurization device 2, a mixing cylinder 9 is fixedly connected to one end of the quicklime inlet pipe 8, a circulating water pipe 22 is inserted into the mixing cylinder 9, a desulfurization device inlet pipe 23 is inserted into one side of the circulating water pipe 22, a water control valve is fixedly connected to the outer surface of the desulfurization device inlet pipe 23, a heat exchange device 16 is sleeved on the outer surface, one side of the mixing cylinder 9 is inserted with a discharging pipe, one end of the discharging pipe is inserted in the crushing device 3, the inner bottom wall of the crushing device 3 is fixedly connected with a fixed frame, the inside of the fixed frame is inserted with a rotating shaft, the outer surface of the rotating shaft is sleeved with a rotating drum 18, the outer surface of the rotating drum 18 is connected with a material conveying belt 19 in a transmission way, the inner side wall of the crushing device 3 is fixedly connected with a crushing table, a crushing roller 20 is fixedly connected above the crushing table, one side of the material conveying belt 19 is provided with a scraping plate, one side of the crushing device 3 is inserted with a limestone discharging barrel, one end of the limestone discharging barrel is inserted in the lower surface of a limestone storage bin 21, one side of the limestone storage bin 21 is fixedly connected with a supporting frame, one side of the desulfurizing device 2 is inserted with an ozone inlet pipe 10, the ozone inlet pipe 10 and a stirring, the reaction effect is enhanced, the addition of ozone can effectively oxidize sulfur dioxide into sulfur trioxide, the sulfur trioxide reacts with quick lime to generate calcium sulfate, or the sulfur dioxide reacts with the quick lime to generate calcium sulfite at the beginning, and then the calcium sulfate is oxidized by ozone, thereby greatly increasing the probability of converting the sulfur dioxide into the calcium sulfate, the desulfurization effect is improved, and the calcium sulfate is gypsum, so that the high-efficiency and environment-friendly flue gas desulfurization device has stronger waste conversion capability, one side of the desulfurization device 2 is fixedly connected with a distribution box, one side of the distribution box is fixedly connected with a stirring shaft 11, the inner ground wall of the desulfurization device 2 is provided with a sloping platform, the inner ground wall of the sloping platform is spliced with a calcium sulfate discharging pipe 12, the inner part of the desulfurization device 2 is fixedly connected with a dust filter screen 13, the inner top wall of the desulfurization device 2 is fixedly, the shape of the guide plate 14 is spiral, the included angle between the guide plate 14 and the horizontal plane is thirty degrees, one side of the guide plate 14 is inserted with a purified gas outlet pipe 15, one end of the purified gas outlet pipe 15 is inserted inside the heat exchange device 16, the treated flue gas can be heated in the discharging process through the arrangement of the heat exchange device 16, thereby fundamentally avoiding the occurrence of acid mist, being very beneficial to the discharging of the treated flue gas, improving the environmental protection capability and the practicability of the high-efficiency and environment-friendly flue gas desulfurization device, and the heat source required in the heating process does not need to cost excessively, only needing to lead the waste heat of the circulating water from the cooling tower for heating, thereby effectively reducing the production cost, the inside of the heat exchange device 16 is provided with a circulating water pipe cavity and a purified gas drying cavity from left to right in sequence, the inside of the circulating water pipe cavity is inserted with a heat conducting rod 24, the surface of heat conduction stick 24 has cup jointed sealed the pad, and the one end fixedly connected with heater strip 25 of heat conduction stick 24, the one end fixed connection of heater strip 25 is at the inner wall of purifying gas drying chamber, and heat transfer device 16's inside is pegged graft and is had the blast pipe, and the one end of blast pipe is pegged graft in the inside of chimney 17.

In conclusion, when the high-efficiency environment-friendly flue gas desulfurization device is used, the gas flow can be increased and the reaction effect can be enhanced by the matching arrangement of the ozone inlet pipe 10 and the stirring shaft 11, the addition of ozone can effectively oxidize sulfur dioxide into sulfur trioxide and react with quick lime to generate calcium sulfate, or sulfur dioxide and quick lime react to generate calcium sulfite at the beginning and then are oxidized into calcium sulfate by ozone, so that the probability of converting sulfur dioxide into calcium sulfate is greatly increased, the desulfurization effect is improved, and the calcium sulfate, namely gypsum, ensures that the high-efficiency environment-friendly flue gas desulfurization device has stronger waste conversion capability, and the treated flue gas can be heated in the discharging process by the arrangement of the heat exchange device 16, so that the acid mist condition is fundamentally avoided, and the flue gas after very being favorable to handling is discharged, has improved this high-efficient environmental protection's flue gas desulphurization unit's environmental protection ability and practicality to the required heat source of heating process does not need extra cost, only need from the cooling tower lead circulating water waste heat can, thereby effectual manufacturing cost that has reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "disposed," "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; they may be mechanically coupled, directly coupled, or indirectly coupled through intervening agents, both internally and/or in any other manner known to those skilled in the art. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a flue gas desulfurization device of high-efficient environmental protection, includes iron tower (1), desulphurization unit (2), reducing mechanism (3) and cooling tower (4), its characterized in that: a flue gas guide pipe (5) is spliced on one side of the iron refining tower (1), one end of the flue gas guide pipe (5) is spliced inside the bag type dust collector, a flue gas outlet pipe (6) is spliced on one side of the bag type dust collector, a fan (7) is fixedly connected to the outer surface of the flue gas outlet pipe (6), one end of the flue gas outlet pipe (6) is spliced inside the desulfurizing device (2), a quick lime inlet pipe (8) is spliced on one side of the desulfurizing device (2), a mixing cylinder (9) is fixedly connected to one end of the quick lime inlet pipe (8), a blanking pipe is spliced on one side of the mixing cylinder (9), one end of the blanking pipe is spliced inside the crushing device (3), an ozone inlet pipe (10) is spliced on one side of the desulfurizing device (2), a distribution box is fixedly connected to one side of the desulfurizing device (2), and a stirring shaft (11) is fixedly connected to one side of the distribution box, the interior diapire of desulphurization unit (2) is provided with the slope platform, the interior diapire grafting of slope platform has calcium sulfate unloading pipe (12), the inside fixedly connected with dust filter screen (13) of desulphurization unit (2), the interior roof fixedly connected with dead lever of desulphurization unit (2), the one end fixedly connected with guide plate (14) of dead lever, it has purification gas exit tube (15) to peg graft in one side of guide plate (14), the one end of purifying gas exit tube (15) is pegged graft in the inside of heat transfer device (16), the inside grafting of heat transfer device (16) has the blast pipe, the one end of blast pipe is pegged graft in the inside of chimney (17).

2. The high-efficiency environment-friendly flue gas desulfurization device according to claim 1, characterized in that: the shape of guide plate (14) is the spiral, guide plate (14) and horizontal plane's contained angle is thirty degrees.

3. The high-efficiency environment-friendly flue gas desulfurization device according to claim 1, characterized in that: the utility model discloses a crushing device, including reducing mechanism, crushing device (3), inner diapire fixedly connected with mount, the pivot has been pegged graft to the inside of mount, rotary drum (18) have been cup jointed to the surface of pivot, the surface transmission of rotary drum (18) is connected with material conveyer belt (19), the inside wall fixedly connected with crushing platform of reducing mechanism (3), the top fixedly connected with crushing roller (20) of crushing platform, one side of material conveyer belt (19) is provided with scrapes the flitch.

4. The high-efficiency environment-friendly flue gas desulfurization device according to claim 1, characterized in that: one side of reducing mechanism (3) is pegged graft and is had lime stone lower feed cylinder, the one end of lime stone lower feed cylinder is pegged graft at the lower surface of lime stone storage storehouse (21), one side fixedly connected with support frame of lime stone storage storehouse (21).

5. The high-efficiency environment-friendly flue gas desulfurization device according to claim 1, characterized in that: the inside of mixing cylinder (9) is pegged graft and is had circulating pipe (22), one side of circulating pipe (22) is pegged graft and is had desulphurization unit inlet tube (23), the outer fixed surface of desulphurization unit inlet tube (23) is connected with accuse water valve, heat transfer device (16) have been cup jointed to the surface of circulating pipe (22), circulating pipe's one end is pegged graft in the inside of cooling water tower (4).

6. The high-efficiency environment-friendly flue gas desulfurization device according to claim 1, characterized in that: circulating water lumen and purification gas drying chamber have been seted up in proper order from a left side to the right side to the inside of heat transfer device (16), the inside of circulating water lumen is pegged graft and is had heat conduction stick (24), sealed pad has been cup jointed to the surface of heat conduction stick (24), the one end fixedly connected with heater strip (25) of heat conduction stick (24), the one end fixed connection of heater strip (25) is at the inner wall that purifies gas drying chamber.