CN217189623U - High-efficient regeneration of powdered activated carbon and exhaust-gas treatment system - Google Patents
High-efficient regeneration of powdered activated carbon and exhaust-gas treatment system Download PDFInfo
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- CN217189623U CN217189623U CN202123259853.1U CN202123259853U CN217189623U CN 217189623 U CN217189623 U CN 217189623U CN 202123259853 U CN202123259853 U CN 202123259853U CN 217189623 U CN217189623 U CN 217189623U
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Abstract
The utility model provides a high-efficient regeneration of powdered activated carbon and exhaust-gas treatment system, belongs to the activated carbon regeneration and utilizes the field, and it includes: the system comprises a modular regeneration furnace, a heat exchange unit, a dust removal unit, a pyrolysis gas fan, a boiler, a waste gas treatment unit and a cooling unit; the modular regeneration furnace is provided with a feed inlet and is used for feeding the dried saturated powdered activated carbon and regenerating the dried saturated powdered activated carbon at a high temperature; the modular regenerative furnace is provided with an exhaust port and is sequentially connected with the heat exchange unit, the dust removal unit, the pyrolysis gas fan, the boiler and the waste gas treatment unit; the modular regeneration furnace is provided with a discharge port and is connected with the cooling unit. The system is simple in structure, convenient to operate, capable of effectively utilizing combustion heat energy of pyrolysis gas, low in overall energy consumption, high in regeneration efficiency and applicable to continuous large-batch industrial regeneration of saturated activated carbon, and tail gas is discharged up to standard.
Description
Technical Field
The utility model belongs to the technical field of the active carbon regeneration and specifically relates to a powdered activated carbon high efficiency regeneration and exhaust-gas treatment system is related to.
Background
Activated Carbon (AC) is a nontoxic and tasteless adsorbing material with a very developed pore structure and a very large specific surface area, has very strong molecular adsorption capacity, and has been widely applied to a plurality of fields such as medicine, chemical industry, light industry, food, environmental protection and the like as an adsorption decolorant. In the aspect of environmental protection, the activated carbon adsorption is widely applied to the purification of polluted water sources and the advanced treatment of urban sewage and industrial wastewater, and is one of important means for treating organic wastewater. According to the appearance of the activated carbon, the activated carbon can be divided into powdered activated carbon and granular activated carbon.
The cost for preparing the activated carbon is high, the waste saturated activated carbon not only causes resource waste, but also causes secondary environmental pollution, and therefore, the method has important significance for effectively regenerating the activated carbon and improving the utilization efficiency of the activated carbon from the aspects of economy and environmental protection. The regeneration of the activated carbon refers to a process of removing adsorbates adsorbed on micropores of the activated carbon by a physical or chemical method and recovering the adsorption performance of the activated carbon on the premise of not damaging the original structure of the activated carbon. The thermal regeneration method is the most widely applied active carbon regeneration method at present, and has the advantages of high regeneration efficiency, short regeneration time, wide application range and strong universality.
Generally, the thermal regeneration of the waste activated carbon saturated in liquid phase adsorption is performed after drying, and the heating temperature is different and corresponds to a drying stage and a high-temperature regeneration stage. In the drying stage, a large amount of heat energy is consumed. During the high-temperature regeneration stage, the activated carbon recovers the adsorption performance and generates a considerable amount of pyrolysis gas. The pyrolysis gas has the characteristics of high temperature, dust (activated carbon particles) and combustibility. The application range of the existing powdered activated carbon efficient regeneration and waste gas treatment device has certain limitations: the purification treatment process of the pyrolysis gas adopts proper air mixing to reduce the concentration of combustible materials, and then the pyrolysis gas enters the RTO heat accumulating type incinerator. The combustion heat energy of the pyrolysis gas is not effectively utilized.
Therefore, there is a need to design a system for efficiently regenerating powdered activated carbon and treating waste gas to overcome the above problems.
SUMMERY OF THE UTILITY MODEL
In order to avoid the problems, the efficient regeneration and waste gas treatment system for the powdered activated carbon is provided, simple in structure, convenient and fast to operate, capable of effectively utilizing combustion heat energy of pyrolysis gas, low in overall energy consumption, high in regeneration efficiency and suitable for continuous large-batch industrial regeneration of saturated activated carbon, and tail gas is discharged up to standard.
The utility model provides a pair of powdered activated carbon high efficiency regeneration and exhaust-gas treatment system, include: the system comprises a modular regenerative furnace, a heat exchange unit, a dust removal unit, a pyrolysis gas fan, a boiler, a waste gas treatment unit and a cooling unit; the modular regeneration furnace is provided with a feed inlet and is used for feeding the dried saturated powdered activated carbon and regenerating the dried saturated powdered activated carbon at a high temperature; the modular regeneration furnace is provided with an exhaust port and is sequentially connected with a heat exchange unit, a dust removal unit, a pyrolysis gas fan, a boiler and a waste gas treatment unit; the modular regeneration furnace is provided with a discharge port and is connected with the cooling unit.
Preferably, the modular regeneration furnace is formed by stacking and detachably connecting a plurality of high-temperature heating and conveying modules from top to bottom in a regular manner.
Preferably, the boiler is provided with a pyrolysis gas burner, a main burner and an open flame burner; the pyrolysis gas burner is communicated with the pyrolysis gas fan, and the main burner and the pilot flame burner burn gas fuel or liquid fuel.
Preferably, the heat energy of the boiler combustion is used for the drying process of the saturated powdered activated carbon.
Preferably, the pyrolysis gas fan adopts a variable-frequency speed-regulating motor.
Preferably, the waste gas treatment unit is connected with the chimney through an induced draft fan, the waste gas up to the standard is purified and treated by the waste gas treatment unit and is discharged from the chimney through the induced draft fan, and the induced draft fan adopts a variable frequency speed regulating motor.
Compared with the prior art, the utility model discloses following beneficial effect has: the system is simple in structure, convenient to operate, capable of effectively utilizing combustion heat energy of pyrolysis gas, low in overall energy consumption, high in regeneration efficiency and applicable to continuous large-batch industrial regeneration of saturated activated carbon, and tail gas is discharged up to standard.
Drawings
FIG. 1 is a schematic diagram of a system for efficient regeneration of powdered activated carbon and waste gas treatment according to a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a system for efficient regeneration of powdered activated carbon and waste gas treatment according to a preferred embodiment of the present invention;
detailed description of the embodiments reference is made to the accompanying drawings in which:
1. the system comprises a modular regeneration furnace, 11, a high-temperature heating and conveying module, 2, a heat exchange unit, 3, a dust removal unit, 4, a pyrolysis gas fan, 5, a boiler, 51, pyrolysis gas burners, 52, a main burner, 53, an ever-burning flame burner, 6, a waste gas treatment unit, 7, an induced draft fan, 8, a chimney, 9 and a cooling unit.
Detailed Description
The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to fig. 2, the present embodiment provides a system for efficiently regenerating powdered activated carbon and treating waste gas, including: the system comprises a modular regenerative furnace 1, a heat exchange unit 2, a dust removal unit 3, a pyrolysis gas fan 4, a boiler 5, a waste gas treatment unit 6, an induced draft fan 7 and a chimney 8 which are sequentially communicated. Wherein the modular regenerator 1 is also in communication with a cooling unit 9.
After being dried, the saturated powdered activated carbon is input into a modular regeneration furnace 1 through a feed inlet for high-temperature regeneration, the regenerated powdered activated carbon is cooled by a cooling unit 9 from a discharge outlet and then is received, the pyrolysis gas generated in the regeneration process is cooled by a heat exchange unit 2 through an exhaust port and is dedusted by a dedusting unit 3, the pyrolysis gas is input into a boiler 5 for combustion, the generated waste gas is purified by a waste gas treatment unit 6 and is up to the standard, and the waste gas is discharged through an induced draft fan 7 and a chimney 8. Wherein, the heat energy absorbed by the boiler 5 is used for drying the saturated powdered activated carbon, effectively utilizes the combustion heat energy of the pyrolysis gas, can greatly reduce harmful substances in the waste gas, and is energy-saving and environment-friendly.
As shown in fig. 2, the modular regenerative furnace 1 is formed by stacking six high-temperature heating and conveying modules 11 from top to bottom, and each high-temperature heating and conveying module 11 is detachable, and the number of the high-temperature heating and conveying modules 11 can be set according to actual requirements, so that the optimal cost performance is achieved, and the modular regenerative furnace is flexible and practical.
In this embodiment, the heat exchange unit 2 uses a water-cooled coiled heat exchanger, the dust removal unit 3 is a bag-type dust remover, and the pyrolysis gas fan 4 and the induced draft fan 7 are driven by variable-frequency adjustable-speed motors. Meanwhile, the pyrolysis gas burner 51, the main burner 52 and the long open fire burner 53 are arranged on the boiler 5, wherein the pyrolysis gas burner 51 is communicated with the pyrolysis gas fan 4, and the main burner 52 and the long open fire burner 53 burn gas fuel or liquid fuel, so that other gas fuel or liquid fuel can be introduced for burning and utilizing besides the burning heat energy utilization of the pyrolysis gas, and the method is flexible and practical.
Meanwhile, the waste gas treatment unit 6 consists of two stages of spray towers, and the spray liquid is sodium chlorite and sodium hydroxide solution. The cooling unit 9 is a water-cooled screw conveyor.
The system is simple in structure, convenient to operate, capable of effectively utilizing combustion heat energy of pyrolysis gas, low in overall energy consumption, high in regeneration efficiency and applicable to continuous large-batch industrial regeneration of saturated activated carbon, and tail gas is discharged up to standard.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a high-efficient regeneration of powdered activated carbon and exhaust-gas treatment system which characterized in that includes: the system comprises a modular regeneration furnace, a heat exchange unit, a dust removal unit, a pyrolysis gas fan, a boiler, a waste gas treatment unit and a cooling unit; the modular regeneration furnace is provided with a feed inlet and is used for feeding the dried saturated powdered activated carbon and regenerating the dried saturated powdered activated carbon at a high temperature; the modular regeneration furnace is provided with an exhaust port and is sequentially connected with a heat exchange unit, a dust removal unit, a pyrolysis gas fan, a boiler and a waste gas treatment unit; the modular regeneration furnace is provided with a discharge port and is connected with the cooling unit.
2. The system for efficient powdered activated carbon regeneration and waste gas treatment as set forth in claim 1, wherein: the modular regeneration furnace is formed by stacking and detachably connecting a plurality of high-temperature heating and conveying modules from top to bottom in a regular manner.
3. The system for efficient powdered activated carbon regeneration and waste gas treatment as claimed in claim 1, wherein: the boiler is provided with a pyrolysis gas burner, a main burner and a long open fire burner; the pyrolysis gas burner is communicated with the pyrolysis gas fan, and the main burner and the pilot flame burner burn gas fuel or liquid fuel.
4. The system for efficient powdered activated carbon regeneration and waste gas treatment as set forth in claim 1, wherein: the heat energy of boiler combustion is used for drying treatment of saturated powdered activated carbon.
5. The system for efficient powdered activated carbon regeneration and waste gas treatment as claimed in claim 1, wherein: the pyrolysis gas fan adopts a variable frequency speed-regulating motor.
6. The system for efficient powdered activated carbon regeneration and waste gas treatment as claimed in claim 1, wherein: the waste gas treatment unit is connected with the chimney through a draught fan, and the draught fan adopts a variable-frequency speed-regulating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123259853.1U CN217189623U (en) | 2021-12-23 | 2021-12-23 | High-efficient regeneration of powdered activated carbon and exhaust-gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123259853.1U CN217189623U (en) | 2021-12-23 | 2021-12-23 | High-efficient regeneration of powdered activated carbon and exhaust-gas treatment system |
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| CN217189623U true CN217189623U (en) | 2022-08-16 |
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| CN202123259853.1U Active CN217189623U (en) | 2021-12-23 | 2021-12-23 | High-efficient regeneration of powdered activated carbon and exhaust-gas treatment system |
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Denomination of utility model: A high-efficiency regeneration and waste gas treatment system for powdered activated carbon Effective date of registration: 20230628 Granted publication date: 20220816 Pledgee: Guanggu Branch of Wuhan Rural Commercial Bank Co.,Ltd. Pledgor: Junji Environmental Technology Co.,Ltd. Registration number: Y2023420000270 |