CN218609434U - Active carbon regenerating device for blast furnace gas desulfurization - Google Patents
Active carbon regenerating device for blast furnace gas desulfurization Download PDFInfo
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- CN218609434U CN218609434U CN202222733721.6U CN202222733721U CN218609434U CN 218609434 U CN218609434 U CN 218609434U CN 202222733721 U CN202222733721 U CN 202222733721U CN 218609434 U CN218609434 U CN 218609434U
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Abstract
The utility model relates to a blast furnace gas desulfurization active carbon regenerating unit belongs to chemical industry and environmental protection field. A blast furnace gas desulfurization activated carbon regeneration device comprises a reaction kettle body and a reaction kettle cover arranged on the reaction kettle body, wherein a reaction inner barrel is arranged in the reaction kettle body, and the reaction inner barrel is driven to rotate by a motor arranged outside the reaction kettle body; the reaction inner barrel is provided with water holes; and the reaction kettle body is provided with an air inlet pipe, a water inlet pipe and a water outlet pipe. The regeneration device is used for activated carbon regeneration, so that the carbon loss rate is low, the regeneration is thorough, and the regeneration device is green and environment-friendly and has application potential.
Description
Technical Field
The utility model belongs to the chemical industry and environmental protection field relate to a blast furnace gas desulfurization active carbon regenerating unit.
Background
Blast Furnace Gas (BFG) is used as combustible gas generated in the blast furnace ironmaking process, can be used as fuel of hot blast furnaces, heating furnaces, coke ovens, boilers and the like, can realize reutilization of energy, and reduces energy consumption in the steel industry. But organic sulfur and inorganic sulfur contained in blast furnace gas are combusted to generate SO 2 And the serious pollution to the ecological environment caused by the emission of the waste gas into the air requires the desulfurization of blast furnace gas. At present, blast furnace gas desulfurization generally adopts a tail end treatment mode, namely SO in tail end flue gas after combustion of a blast furnace gas user is removed 2 However, the blast furnace gas user sites are scattered, and desulfurization facilities need to be arranged at multiple points, so that the problems of repeated investment, high operating cost and the like exist, and therefore, the method for treating the blast furnace gas from the source is a necessary desulfurization method.
Removal of H by means of solid adsorbents 2 S and other sulfur-containing compounds play an important role in the treatment process of a plurality of sources researched at present due to the characteristics of strong applicability, simple operation, high desulfurization efficiency and the like. The activated carbon has the advantages of stable chemical property, large specific surface area, abundant surface groups and the like, and becomes a solid adsorbent which is most widely applied. The main desulfurization reactions that occur over activated carbon catalysts are:
2H 2 S+O 2 →2S↓+2H 2 O
with the proceeding of the desulfurization process, elemental sulfur generated by the desulfurization reaction is continuously deposited on the surface and in the pores of the activated carbon, and after the active sites of the activated carbon are completely covered by the elemental sulfur, the activated carbon is saturated in adsorption and loses catalytic activity.
At present, saturated activated carbon is treated mainly by incineration and landfill, resources of the two modes are not fully utilized, and the problem of secondary pollution also exists. Therefore, the research on desorption regeneration and harmless treatment of the saturated activated carbon has important significance on environmental protection, economic benefit and resource utilization.
Therefore, a green, environment-friendly, simple and efficient activated carbon regeneration device for blast furnace gas desulfurization is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an apparatus for desulfurization and regeneration of blast furnace gas activated carbon, which has a low carbon loss rate, thorough regeneration, and environmental protection.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a blast furnace gas desulfurization activated carbon regeneration device comprises a reaction kettle body and a reaction kettle cover arranged on the reaction kettle body, wherein a reaction inner barrel is arranged in the reaction kettle body, and the reaction inner barrel is driven to rotate by a motor arranged outside the reaction kettle body; the reaction inner barrel is provided with water holes; and the reaction kettle body is provided with an air inlet pipe, a water inlet pipe and a water outlet pipe.
Optionally, the air inlet pipe is introduced into the inner reaction barrel.
Optionally, the reaction kettle body is provided with an ultraviolet lamp for irradiating ultraviolet rays into the reaction inner barrel.
Optionally, an ultrasonic generator is arranged on the reaction kettle body.
Optionally, the ultrasonic wave generating devices are symmetrically arranged on the reaction kettle body along the height and/or width direction.
Optionally, the number of the air inlet pipes is multiple.
Optionally, the bottom of the reaction kettle body is provided with a small gas inlet pipe for introducing gas into the reaction inner barrel.
Optionally, the number of the air inlet small pipes is a plurality, and the air inlet small pipes are rotationally and symmetrically arranged at the bottom of the reaction kettle body.
Optionally, the motor passes through the reaction kettle cover and is arranged outside the reaction kettle cover.
Optionally, a handle is arranged on the reaction kettle cover.
The beneficial effects of the utility model reside in that:
the utility model provides a set of equipment that is used for the active carbon regeneration, flooding, stirring, the photocatalysis of active carbon all can go on in one set of device, has both realized the stirring of active carbon through the ultrasonator, realizes the washing of active carbon again, has practiced thrift the equipment input, and the charcoal loss is less, green, easily promotes.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a diagram of the apparatus of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a layout of the inlet tubules;
fig. 4 is a side view of the reaction inner barrel.
Reference numerals: the device comprises a motor 1, an ultraviolet lamp 2, an air inlet pipe 3, an ultrasonic wave generating device 4, a water inlet pipe 5, a water outlet pipe 6, a reaction inner barrel 7, activated carbon to be regenerated 8, an air inlet small pipe 9, a reaction kettle body 10 and a reaction kettle cover 11.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 4, the apparatus of the present invention is as follows:
a blast furnace gas desulfurization activated carbon regeneration device comprises a reaction kettle body and a reaction kettle cover arranged on the reaction kettle body, wherein a reaction inner barrel is arranged in the reaction kettle body, and the reaction inner barrel is driven to rotate by a motor arranged outside the reaction kettle body; the reaction inner barrel is provided with water holes, the water holes are used for water inlet and water outlet, the aperture of the water holes is smaller than that of the active carbon, and the water holes can be arranged on the side wall and the bottom surface of the reaction inner barrel; and the reaction kettle body is provided with an air inlet pipe, a water inlet pipe and a water outlet pipe.
The air inlet pipe is introduced into the reaction inner barrel; an ultraviolet lamp for irradiating ultraviolet rays into the reaction inner barrel is arranged on the reaction kettle body; an ultrasonic generating device is arranged on the reaction kettle body; the ultrasonic wave generating devices are symmetrically arranged on the reaction kettle body along the height and/or width direction; a plurality of air inlet pipes are arranged; the bottom of the reaction kettle body is provided with a small gas inlet pipe for introducing gas into the reaction inner barrel; the air inlet small pipes are arranged at the bottom of the reaction kettle body in a rotational symmetry manner; the motor penetrates through the reaction kettle cover and is arranged outside the reaction kettle cover; and a handle is arranged on the reaction kettle cover.
The process scheme that uses the utility model can be carried out comprises the following steps:
preparation of photocatalyst-loaded activated carbon: putting photocatalyst powder into a regeneration reaction kettle, introducing ultrapure water, performing ultrasonic dispersion for 1-2 hours to obtain a homogeneous dispersion solution, putting an activated carbon 8 catalyst to be regenerated with saturated adsorption and primary particle size into the photocatalyst solution, then stirring and dipping for 2-3 hours to obtain activated carbon loaded with the photocatalyst, and stirring in a gas flow stirring mode (introducing compressed air) and a mode of combining the rotation of a reaction kettle body 10 with the rotation of the reaction kettle body to drive the solution and the rotation of the catalyst in order to prevent the rotation of a stirring blade from damaging the primary particle size catalyst;
photocatalytic oxidation desulfurization: turning on an ultraviolet lamp 2 to irradiate the regeneration system for 2-4 h, wherein the system mainly comprises the following reactions:
hydrogen peroxide washing and desulfurization: opening a drain pipe 6 at the lower part of the reaction kettle, discharging the photocatalyst solution, then opening an ultrasonic wave generating device 4 on the reaction kettle, introducing hydrogen peroxide, washing the active carbon under the ultrasonic condition, closing a water inlet pipe 5 when the introduction amount of the hydrogen peroxide reaches a preset value, and stopping introducing the hydrogen peroxide; then stirring is carried out by adopting an air flow stirring mode and a mode that the inner reaction barrel 7 rotates to drive the solution and the catalyst to rotate, and the stirring time is 0.5-1 h. After the stirring is finished, the drain pipe 6 below the reaction kettle is opened to discharge the waste liquid. Repeating the steps, then introducing hydrogen peroxide to wash the active carbon under the ultrasonic condition, and repeating the steps for 2 to 3 times
Fe may also be added into hydrogen peroxide 2+ 、Cu 2+ On one hand, the addition of the metal ions can improve the capability of generating hydroxyl radicals (. OH) and enhance the oxidizability of the metal ions; on the other hand, the metal ions remained on the activated carbon can also supplement active sites for the activated carbon, so that the desulfurization efficiency is improved, and the main reactions in the system are as follows:
heating and drying: taking the activated carbon out of the reaction kettle, drying the activated carbon in a vacuum drying mode, and simultaneously removing impurity gases adsorbed in the activated carbon in a vacuum mode, wherein the heating temperature is set to be 80-100 ℃, and the drying time is 1-2 hours;
biological treatment of SO 2-containing materials 4 -waste water: collecting the SO 2-containing 4 The wastewater can be reduced and then oxidized through the action of microorganisms, and finally separated to obtain elemental sulfur;
in this embodiment, there is provided an apparatus for regenerating activated carbon for blast furnace gas desulfurization, the apparatus including:
the motor 1 converts electric energy into mechanical energy, drives the shaft and the reaction inner barrel 7 to rotate, and drives the solution and the catalyst to rotate for stirring;
an ultraviolet lamp 2 for emitting ultraviolet rays to irradiate the regeneration system to promote the photocatalytic reaction in the regeneration process;
a gas inlet pipe 3, which is filled with compressed air to supplement oxygen for the regeneration system and play a role of gas flow stirring;
the ultrasonic wave generating device 4 is arranged on the reaction kettle body 10 and generates ultrasonic waves to enable the regeneration system to be in an ultrasonic environment;
a water inlet pipe 5 and a water outlet pipe 6 are used for introducing/discharging liquid into/from the reaction kettle;
the reaction kettle cover 11 is detachable and is provided with an annular handle, a round hole is arranged at the center, and a shaft of the inner reaction barrel 7 can extend out of the kettle body and is connected with the motor 1;
the reaction inner barrel 7 is arranged in a barrel of the reaction kettle body 10, the activated carbon 8 to be regenerated is arranged in the barrel, small holes are formed in the barrel body, the size of each small hole is smaller than that of the activated carbon, liquid in the reaction kettle can enter the reaction inner barrel 7, the top of the reaction inner barrel is not provided with a barrel cover, and ultraviolet light can directly irradiate the reaction inner barrel;
the reaction kettle body 10 provides a regeneration place for a regeneration system, the bottom of the kettle is also provided with a small air inlet pipe 9, and compressed air can enter the reaction kettle from the small air inlet pipe 9 at the bottom to carry out airflow stirring.
The regeneration protocol was as follows:
1. putting a certain amount of photocatalyst powder into a reaction kettle, opening a water inlet pipe 5, introducing ultrapure water, simultaneously opening an ultrasonic wave generating device 4, and performing ultrasonic dispersion to form a homogeneous dispersion solution;
2. the activated carbon to be regenerated is loaded into a reaction inner barrel 7, and then the reaction inner barrel 7 is placed at a proper position of a reaction kettle body 10 and is provided with an air inlet pipe 3;
3. the inner reaction barrel 7 is connected with the motor 1 through a shaft, and the motor 1 can be fixed above the reaction kettle through a bracket;
4. mounting a kettle cover on a kettle body, opening a motor 1, an air inlet pipe 3 and a small air inlet pipe 9 at the bottom of the reaction kettle, introducing compressed air, and stirring in an air flow stirring mode and a mode that an inner reaction barrel 7 rotates to drive a solution and a catalyst to rotate;
5. after the stirring is stopped, the ultraviolet lamp 2 is turned on to irradiate the regeneration system;
6. opening a drain pipe 6 at the lower part of the reaction kettle, discharging the photocatalyst solution, then opening an ultrasonic wave generating device 4 on the reaction kettle, introducing hydrogen peroxide, and washing the activated carbon under the ultrasonic condition;
7. when the introduction amount of the hydrogen peroxide reaches a preset value, closing the water inlet pipe 5 and stopping introducing the hydrogen peroxide; then, stirring is carried out by adopting an airflow stirring mode and a mode that the inner reaction barrel 7 rotates to drive the solution and the catalyst to rotate;
8. after the stirring is finished, the drain pipe 6 below the reaction kettle is opened to discharge the waste liquid. Repeating the steps, then introducing hydrogen peroxide to wash the activated carbon under the ultrasonic condition, and repeating for 2-3 times;
9. and taking the activated carbon out of the reaction kettle, and drying the activated carbon in a vacuum drying mode.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (10)
1. The blast furnace gas desulfurization activated carbon regeneration device is characterized by comprising a reaction kettle body and a reaction kettle cover arranged on the reaction kettle body, wherein a reaction inner barrel is arranged in the reaction kettle body, and the reaction inner barrel is driven to rotate by a motor arranged outside the reaction kettle body;
the reaction inner barrel is provided with water holes;
and the reaction kettle body is provided with an air inlet pipe, a water inlet pipe and a water outlet pipe.
2. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein the inlet pipe opens into the interior of the inner reaction barrel.
3. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein an ultraviolet lamp for irradiating ultraviolet rays into the reaction inner barrel is provided on the reaction vessel body.
4. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein an ultrasonic generation device is provided on the reaction vessel body.
5. The blast furnace gas desulfurization activated carbon regeneration device according to claim 4, wherein a plurality of ultrasonic wave generation devices are symmetrically arranged on the reaction kettle body along the height and/or width direction.
6. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein the intake pipe is provided in plurality.
7. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein a small gas inlet pipe for introducing gas into the inner reaction barrel is provided at the bottom of the reaction kettle body.
8. The blast furnace gas desulfurization activated carbon regeneration device according to claim 7, wherein the gas inlet small pipe is provided in a plurality of numbers, and is rotationally symmetrically arranged at the bottom of the reaction kettle body.
9. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein the motor is disposed outside the reaction kettle cover through the reaction kettle cover.
10. The blast furnace gas desulfurization activated carbon regeneration device according to claim 1, wherein a handle is provided on the reaction vessel lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222733721.6U CN218609434U (en) | 2022-10-14 | 2022-10-14 | Active carbon regenerating device for blast furnace gas desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222733721.6U CN218609434U (en) | 2022-10-14 | 2022-10-14 | Active carbon regenerating device for blast furnace gas desulfurization |
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| Publication Number | Publication Date |
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| CN218609434U true CN218609434U (en) | 2023-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222733721.6U Active CN218609434U (en) | 2022-10-14 | 2022-10-14 | Active carbon regenerating device for blast furnace gas desulfurization |
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| CN (1) | CN218609434U (en) |
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- 2022-10-14 CN CN202222733721.6U patent/CN218609434U/en active Active
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