CN111495347A - Activated carbon regeneration system and regeneration process thereof - Google Patents
Activated carbon regeneration system and regeneration process thereof Download PDFInfo
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- CN111495347A CN111495347A CN202010509486.7A CN202010509486A CN111495347A CN 111495347 A CN111495347 A CN 111495347A CN 202010509486 A CN202010509486 A CN 202010509486A CN 111495347 A CN111495347 A CN 111495347A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 230000008929 regeneration Effects 0.000 title claims abstract description 101
- 238000011069 regeneration method Methods 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000001179 sorption measurement Methods 0.000 claims abstract description 20
- 238000003795 desorption Methods 0.000 claims abstract description 11
- 238000007599 discharging Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 14
- 229920006395 saturated elastomer Polymers 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000001816 cooling Methods 0.000 claims description 10
- 229910052902 vermiculite Inorganic materials 0.000 claims description 10
- 235000019354 vermiculite Nutrition 0.000 claims description 10
- 239000010455 vermiculite Substances 0.000 claims description 10
- 238000005273 aeration Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- -1 hydroxyl radicals Chemical class 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an active carbon regeneration system and a regeneration process thereof, which belong to the field of environmental protection chemical industry and solve the regeneration problem after the adsorption saturation of active carbon, wherein the active carbon regeneration system comprises a first regeneration system and/or a second regeneration system, and the first regeneration system comprises: the regeneration furnace comprises a shell, the shell comprises an inner shell and an outer shell, and a cavity is formed between the outer shell and the inner shell; a spiral conveying shaft is arranged in the shell, and a feeding end and a discharging end are arranged on the shell; the first driving device is used for driving the inner shell to rotate; the second driving device is used for driving the spiral conveying shaft to rotate; the inner shell and the spiral conveying shaft coaxially and reversely rotate, so that the system has excellent heat exchange effect and improves the desorption effect of the activated carbon; the invention also discloses a regeneration process of the regeneration system, and the regeneration process has good regeneration effect.
Description
Technical Field
The invention relates to the field of environmental protection chemical industry, in particular to an activated carbon regeneration system and a regeneration process thereof.
Background
The activated carbon is an industrial adsorbent with wide application, and along with the development of economy, the activated carbon is applied in many fields, the adsorbability of the activated carbon is derived from a unique molecular structure, and the inside of the activated carbon has a plurality of pores, so that the activated carbon has excellent adsorbability, and is particularly suitable for the adsorption treatment fields in the fields of printing and dyeing, chemical engineering and the like. For a long time, the activated carbon is used as a disposable product, and the activated carbon is discarded after adsorption is finished, so that great waste is generated.
In recent years, with the development of technologies, saturated activated carbon regeneration technologies are greatly developed, and the saturated activated carbon is enabled to recover the adsorption capacity through the saturated activated carbon regeneration technologies, so that the activated carbon can be recycled, the cost is reduced, and the environmental pollution is reduced.
Disclosure of Invention
The present invention is directed to solve at least one of the problems of the prior art and to provide an activated carbon regeneration system.
The technical solution of the invention is as follows:
an activated carbon regeneration system comprising a first regeneration system and/or a second regeneration system, the first regeneration system comprising:
the regeneration furnace comprises a shell, the shell comprises an inner shell and an outer shell, and a cavity is formed between the outer shell and the inner shell; a spiral conveying shaft is arranged in the shell, and a feeding end and a discharging end are arranged on the shell;
the first driving device is used for driving the inner shell to rotate;
the second driving device is used for driving the spiral conveying shaft to rotate;
the inner shell and the spiral conveying shaft coaxially rotate in opposite directions.
Preferably, a material blocking device is further arranged in the shell, a material blocking plate is arranged on the material blocking device, and a gap is reserved between the material blocking plate and the helical blade on the helical conveying shaft.
Preferably, the striker device further comprises an elastic device for driving the striker plate to reciprocate.
Preferably, the spiral conveying shaft and the spiral blades thereon are both hollow and are communicated with the cavity.
Preferably, the cooling device is communicated with the discharge end of the regenerating furnace, and comprises a quenching tank and a water conveying device for conveying water into the quenching tank.
Preferably, the drying device is further included, and the drying device comprises a blowing groove and a fan used for conveying cold air into the blowing groove.
Preferably, the second regeneration system comprises an electrode tank, a cathode plate and an anode plate are arranged in the electrode tank, a separation net is arranged between the cathode plate and the anode plate to divide the electrolytic tank into a plurality of electrode chambers, and electrolyte containing vermiculite is filled in the electrode chambers.
Preferably, an aeration device and/or an ultrasonic device are/is further arranged in the electrode groove.
The invention also discloses a regeneration process of the activated carbon regeneration system, which comprises the following steps:
and adding the activated carbon with saturated adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
Preferably, when the activated carbon with saturated adsorption enters the first regeneration system, high-temperature desorption is carried out in a regeneration furnace, and then the desorbed activated carbon sequentially enters a cooling device and a drying device for cooling and drying; the high temperature desorption comprises 4 temperature stages which are carried out in sequence: a first temperature stage: 100 ℃ to 300 ℃; and a second temperature stage: 300 ℃ and 600 ℃; a third temperature stage: 700 ℃ and 900 ℃, and the fourth temperature stage: 950 ℃ and 1050 ℃;
when the activated carbon with saturated adsorption enters the second regeneration system, the activated carbon with saturated adsorption is firstly placed into each electrode chamber, the cathode plate and the anode plate are respectively connected with direct current voltage below the liquid level of the electrolyte, and then the ultrasonic device and the aeration device are started.
The invention has at least one of the following beneficial effects:
(1) according to the activated carbon regeneration device system, the first regeneration system and/or the second regeneration system are/is arranged, so that on one hand, activated carbon with saturated adsorption can be selectively regenerated; on the other hand, the inner shell and the spiral conveying shaft in the first regeneration system rotate coaxially and reversely, so that the activated carbon is mixed more uniformly when being desorbed, each activated carbon particle can be in full contact with a heat medium, and the desorption effect is greatly enhanced.
(2) According to the activated carbon regeneration system, the material blocking device is arranged, so that dust raising at the feeding end and the discharging end is avoided, the material blocking plate can play a role in scraping dirt when more dust and dirt are attached to the spiral conveying shaft and the spiral blades on the spiral conveying shaft, and the elastic device can play a role in not scraping the spiral conveying shaft and the spiral blades of the spiral conveying shaft.
(3) According to the active carbon regeneration system, the spiral conveying shaft and the spiral blades on the spiral conveying shaft are arranged to be hollow and communicated with the cavity, so that the sound insulation effect is achieved, a heat medium or a cold medium can conveniently enter the cavity to exchange heat with active carbon in the largest area, and the regeneration effect is good.
(4) According to the active carbon regeneration system, the second regeneration system is arranged, the partition net is arranged in the electrode groove to form a plurality of electrode chambers, the active carbon is polarized under the action of an electric field to form a micro-electrolysis unit, organic matters on the surface of the active carbon are desorbed by virtue of electrophoretic force in the regeneration process, and electrolytic products generated by virtue of electrolyte comprise strong oxidants such as chlorine, hypochlorous acid and hydroxyl radicals to oxidize and decompose adsorbates.
(5) According to the regeneration process of the activated carbon regeneration system, the first regeneration system and the second regeneration system are selected to regenerate correspondingly, the vermiculite is added into the electrolyte in the second regeneration system, the vermiculite is also of a porous structure, the oxygen concentration in the electrolyte is improved by combining the aeration device and the ultrasonic device, the vermiculite of the porous structure can contain part of oxygen, when the oxygen is consumed in the electrolytic reaction, the oxygen is gradually desorbed again to continue the reaction, the electrolytic activated carbon is high in organic matters and good in regeneration effect, and is quickly diffused and dissolved into the electrolyte by the activated carbon under the ultrasonic action, and the adsorption sites of the activated carbon are easier to recover.
Drawings
FIG. 1 is a first block diagram of a regeneration process flow according to a preferred embodiment of the present invention;
FIG. 2 is a block diagram of the regeneration process flow of the preferred embodiment of the present invention;
FIG. 3 is a third block diagram of the regeneration process flow of the preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of the construction of a first regeneration system in a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of the construction of a second regeneration system in a preferred embodiment of the present invention;
in the figure, 100-a regeneration furnace, 101-a feeding end, 102-a discharging end, 103-an outer shell, 104-an inner shell, 105-a spiral conveying shaft, 106-a material baffle plate, 107-an elastic device, 200-a conveying device, 300-a dust removing device, 400-a cooling device, 500-a drying device, 600-an electrode tank, 601-a cathode plate, 602-an anode plate, 603-a separation net and 604-an aeration device.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 5, a preferred embodiment of the present invention:
an activated carbon regeneration system, a first regeneration system and/or a second regeneration system, the first regeneration system comprising:
the regenerative furnace 100 comprises a shell, wherein the shell comprises an inner shell 104 and an outer shell 103, and a cavity is formed between the outer shell 103 and the inner shell 104; a spiral conveying shaft 105 is arranged in the shell, and a feeding end 101 and a discharging end 102 are arranged on the shell;
a first driving device for driving the inner shell 104 to rotate;
a second driving device for driving the screw conveying shaft 105 to rotate;
specifically, the first driving device and the second driving device may be driven by motors;
the inner casing 104 rotates coaxially and reversely with the screw conveying shaft 105.
In the preferred embodiment, the first regeneration system and/or the second regeneration system are/is arranged, so that on one hand, the activated carbon with saturated adsorption can be selectively regenerated; on the other hand, the inner shell 104 and the spiral conveying shaft 105 in the first regeneration system rotate coaxially and reversely, so that the activated carbon is mixed more uniformly when being desorbed, each activated carbon particle can be in full contact with a heat medium, and the desorption regeneration effect is greatly enhanced.
As a preferred embodiment of the present invention, it may also have the following additional technical features:
a material blocking device is further arranged in the shell, a material blocking plate 106 is arranged on the material blocking device, and a gap is reserved between the material blocking plate 106 and the helical blade on the helical conveying shaft 105.
The striker device further comprises an elastic device 107 for driving the striker plate 106 to reciprocate. Specifically, the elastic device can adopt a spring, so that the mechanical automatic reset is facilitated;
through setting up dam device, avoid raising dust in feed end 101 and discharge end 102 department on the one hand, on the other hand, when more dirt adheres to on auger delivery axle 105 and the helical blade on it, dam 106 can also play the effect of scraping the dirt, and resilient means can also play and do not scratch auger delivery axle 105 and helical blade in addition.
The spiral conveying shaft 105 and the spiral blades thereon are both hollow and are communicated with the cavity, when the device is specifically applied, the cavity is connected with a heat exchange medium system, the heat exchange medium system comprises a low-temperature fluid heat absorbing medium (water, heat transfer oil or fluid such as air), a pipeline/valve, a pump/fan and a heat release unit (such as a heating component in carbon powder drying equipment), the device can play a role of sound insulation on one hand, and on the other hand, the device is convenient for selecting a heat medium or a cold medium to enter the cavity to exchange heat with the activated carbon in the largest area, and has a good regeneration effect Cutting and rubbing are carried out, and most of heat exchange is carried out through direct contact of each carbon powder and a helical blade, so that the defect of low heat conduction efficiency of the activated carbon is overcome; moreover, the material pipe interlayer hollow structure of the screw conveyor can enable the low-temperature fluid to flow circularly; the surface of the helical blade of the screw conveying shaft occupies 90% of the total heat exchange area, and the helical blade contributes most of the heat exchange value, so that the exchange effect is greatly improved.
The cooling device is communicated with the discharge end of the regenerating furnace 100 and comprises a quenching tank and a water delivery device for delivering water into the quenching tank. Specifically, the water delivery device can be a spray pipe, a water curtain type spray head is arranged on the spray pipe, a water curtain is formed to cool and clean the activated carbon after high-temperature desorption, and harmful substances can be removed to a certain degree.
The drying device 500 is further included, and the drying device comprises a blowing groove and a fan used for conveying cold air to the blowing groove, and is used for drying the cleaned activated carbon. When the device is used specifically, the device further comprises a conveying device 200, wherein the conveying device can be driven by a belt or a chain to drive the activated carbon to move and move to a corresponding station.
The second regeneration system comprises an electrode tank 600, a cathode plate 601 and an anode plate 602 are arranged in the electrode tank 600, a separation net 603 is arranged between the cathode plate 601 and the anode plate 602 to divide the electrolytic tank into a plurality of electrode chambers, electrolyte containing vermiculite is filled in the electrode chambers, and the adding mass ratio of the vermiculite to the activated carbon is 1: 3. Through the second regeneration system who sets up, the active carbon is polarized under the electric field effect, forms little electrolysis unit, and the regeneration process relies on the electrophoresis power to make active carbon surface organic matter desorption on the one hand, and the electrolysis product that on the other hand relies on electrolyte to produce includes strong oxidant oxidative decomposition adsorbate such as chlorine, hypochlorous acid, hydroxyl free radical.
An aeration device 604 and/or an ultrasonic device are/is also arranged in the electrode tank. The second regeneration system adds vermiculite in electrolyte, because vermiculite itself also has porous structure, combine aeration equipment and supersound ware, improve the oxygen concentration in the electrolyte, including porous structure's vermiculite can hold partial oxygen other, consume in the electrolytic reaction when oxygen, gradually desorb again and continue to react, the organic matter is high in the electrolysis active carbon, regeneration effect is good, and under the ultrasonic action, by the active carbon fast to electrolyte diffusion, dissolve, the adsorption site of active carbon also changes the recovery.
In still other embodiments, a process for regenerating an activated carbon regeneration system comprises the steps of:
and adding the activated carbon with saturated adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
When the activated carbon with saturated adsorption enters a first regeneration system, high-temperature desorption is carried out in a regeneration furnace, and then the desorbed activated carbon enters a cooling device and a drying device in sequence for cooling and drying; the high temperature desorption comprises 4 temperature stages which are carried out in sequence:
a first temperature stage: 100-300 ℃, preferably 280 ℃;
and a second temperature stage: 300 ℃ and 600 ℃, preferably 570 ℃;
a third temperature stage: 700 ℃ and 900 ℃, preferably 890 ℃;
and a fourth temperature stage: 950 ℃ and 1050 ℃, preferably 1000 ℃;
each temperature section can volatilize organic matters with different volatilization points, and the activated carbon can be sintered at the third and fourth temperature sections, so that the mechanical strength is further improved;
when the active carbon with saturated adsorption enters a second regeneration system, the active carbon with saturated adsorption is placed into each electrode chamber, the cathode plate and the anode plate are respectively connected with direct current voltage below the liquid level of electrolyte, then the ultrasonic device and the aeration device are started, when the system is specifically applied, the electrolyte is NaCl solution, chloride ions are oxidized into chlorine gas at the anode, and the chlorine gas further reacts with water to generate hypochlorous acid, HClO and Cl2Are strong oxidizers and can oxidize most organic matters adsorbed on the activated carbon and dissolved in the electrolyte. Cathode passing H2O2and-OH, anodic by HClO and Cl2The strong oxidation effect can oxidize the organic matters adsorbed on the active carbon, thereby achieving the aim of regenerating the active carbon.
The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.
In the description of the embodiments of the present invention, it should be understood that "-" and "-" indicate the same range of two numerical values, and the range includes the endpoints. For example: "A-B" means a range of greater than or equal to A and less than or equal to B. "A to B" means a range of A to B inclusive.
In the description of the embodiments of the present invention, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (10)
1. An activated carbon regeneration system, characterized in that: comprising a first regeneration system and/or a second regeneration system, the first regeneration system comprising:
the regeneration furnace (100) comprises a shell, the shell comprises an inner shell (104) and an outer shell (103), and a cavity is formed between the outer shell (103) and the inner shell (104); a spiral conveying shaft (105) is arranged in the shell, and a feeding end (101) and a discharging end (102) are arranged on the shell;
a first driving device for driving the inner shell (104) to rotate;
the second driving device is used for driving the spiral conveying shaft (105) to rotate;
the inner shell (104) and the spiral conveying shaft (105) coaxially rotate in opposite directions.
2. An activated carbon regeneration system according to claim 1, wherein: the shell is also internally provided with a material blocking device, the material blocking device is provided with a material blocking plate (106), and a gap is reserved between the material blocking plate (106) and a helical blade on the helical conveying shaft (105).
3. An activated carbon regeneration system according to claim 2, wherein: the material blocking device also comprises an elastic device (107) which is used for driving the material blocking plate (106) to reciprocate.
4. An activated carbon regeneration system according to claim 1, wherein: the spiral conveying shaft (105) and the spiral blades on the spiral conveying shaft are hollow and are communicated with the cavity.
5. An activated carbon regeneration system according to claim 1, wherein: the cooling device is communicated with the discharge end of the regenerating furnace (100), and comprises a quenching tank and a water delivery device for delivering water into the quenching tank.
6. An activated carbon regeneration system according to claim 1, wherein: the drying device (500) is also included, and comprises a blowing groove and a fan used for conveying cold air into the blowing groove.
7. An activated carbon regeneration system according to claim 1, wherein: the second regeneration system comprises an electrode tank (600), a cathode plate (601) and an anode plate (602) are arranged in the electrode tank (600), a separation net (603) is arranged between the cathode plate (601) and the anode plate (602) to divide the electrolytic tank into a plurality of electrode chambers, and electrolyte containing vermiculite is filled in the electrode chambers.
8. An activated carbon regeneration system according to claim 7, wherein: an aeration device (604) and/or an ultrasonic device are/is also arranged in the electrode tank.
9. A regeneration process of an activated carbon regeneration system is characterized in that: the method comprises the following steps:
and adding the activated carbon with saturated adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
10. The regeneration process of an activated carbon regeneration system according to claim 9, characterized in that:
when the activated carbon with saturated adsorption enters a first regeneration system, high-temperature desorption is carried out in a regeneration furnace, and then the desorbed activated carbon enters a cooling device and a drying device in sequence for cooling and drying; the high temperature desorption comprises 4 temperature stages which are carried out in sequence: a first temperature stage: 100 ℃ to 300 ℃; and a second temperature stage: 300 ℃ and 600 ℃; a third temperature stage: 700 ℃ and 900 ℃, and the fourth temperature stage: 950 ℃ and 1050 ℃;
when the activated carbon with saturated adsorption enters the second regeneration system, the activated carbon with saturated adsorption is firstly placed into each electrode chamber, the cathode plate and the anode plate are respectively connected with direct current voltage below the liquid level of the electrolyte, and then the ultrasonic device and the aeration device are started.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487644A (en) * | 2022-09-03 | 2022-12-20 | 安阳市洹鑫耐材有限责任公司 | Exhaust-gas treatment equipment for environmental engineering |
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