CN111495347B - Activated carbon regeneration system and regeneration process thereof - Google Patents
Activated carbon regeneration system and regeneration process thereof Download PDFInfo
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- CN111495347B CN111495347B CN202010509486.7A CN202010509486A CN111495347B CN 111495347 B CN111495347 B CN 111495347B CN 202010509486 A CN202010509486 A CN 202010509486A CN 111495347 B CN111495347 B CN 111495347B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 134
- 230000008929 regeneration Effects 0.000 title claims abstract description 106
- 238000011069 regeneration method Methods 0.000 title claims abstract description 106
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000003795 desorption Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 24
- 239000003792 electrolyte Substances 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 229920006395 saturated elastomer Polymers 0.000 claims description 12
- 238000005273 aeration 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
- 239000000463 material Substances 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 238000010791 quenching Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 4
- 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
- 239000000428 dust Substances 0.000 description 5
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 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
- 230000018109 developmental process Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication 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
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an activated carbon regeneration system and a regeneration process thereof, which belong to the field of environmental protection and chemical industry and solve the regeneration problem after activated carbon adsorption saturation, wherein the activated 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, wherein 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 effect of the regeneration process is good.
Description
Technical Field
The invention relates to the field of environmental protection chemical industry, in particular to an active carbon regeneration system and a regeneration process thereof.
Background
Activated carbon is an industrial adsorbent with wide application, along with the development of economy, the activated carbon has been applied in a plurality of fields, the adsorptivity of the activated carbon is derived from the unique molecular structure thereof, the inside of the activated carbon is provided with a plurality of pores, and the unique internal structure ensures that the activated carbon has excellent adsorption capacity, and is particularly suitable for the adsorption treatment fields in the fields of printing and dyeing, chemical industry and the like. For a long time, activated carbon is used as a disposable product, and is discarded after adsorption is completed, so that great waste is generated.
In recent years, with the development of technology, the saturated activated carbon regeneration technology has been greatly developed, and the saturated activated carbon is recovered to the adsorption capacity through the saturated activated carbon regeneration technology, so that the activated carbon can be recycled, the cost is reduced, and the environmental pollution is reduced.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provide an activated carbon regeneration system.
The technical scheme 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, wherein 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 are coaxial and reversely rotate.
Preferably, a stop device is further arranged in the shell, a stop plate is arranged on the stop device, and a gap is reserved between the stop plate and a spiral blade on the spiral conveying shaft.
Preferably, the dam device further comprises an elastic means for driving the reciprocal movement of the dam plate.
Preferably, the screw conveyor shaft and the screw blades thereon are hollow and communicate with the cavity.
Preferably, the cooling device is communicated with the discharging end of the regenerating furnace, and comprises a quenching tank and a water delivery device for delivering water into the quenching tank.
Preferably, the drying device comprises a blowing groove and a fan 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 separate the electrolytic tank into a plurality of electrode chambers, and the electrode chambers are filled with electrolyte containing vermiculite.
Preferably, an aeration device and/or an ultrasonic device are/is also arranged in the electrode tank.
The invention also discloses a regeneration process of the activated carbon regeneration system, which comprises the following steps:
and adding the activated carbon saturated by adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
Preferably, 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 sequentially enters a cooling device and a drying device for cooling and drying; the high temperature desorption includes 4 temperature stages in sequence: a first temperature stage: 100-300 ℃; a second temperature stage: 300-600 ℃; third temperature stage: 700-900 ℃, fourth temperature stage: 950-1050 ℃;
when the saturated activated carbon is absorbed and enters the second regeneration system, the saturated activated carbon is firstly placed in 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 active carbon regeneration device system, the adsorption saturated active carbon can be selectively regenerated through the first regeneration system and/or the second regeneration system; on the other hand, the inner shell and the spiral conveying shaft in the first regeneration system coaxially and reversely rotate, so that the activated carbon is uniformly mixed during desorption, each activated carbon particle can be fully contacted with a heat medium, and the desorption effect is greatly enhanced.
(2) According to the active carbon regeneration system, through the arrangement of the baffle device, dust is prevented from flying at the feeding end and the discharging end, and on the other hand, when more dust and dirt are attached to the spiral conveying shaft and the spiral blades on the spiral conveying shaft, the baffle plate can also play a role in scraping the dust and dirt, and the elastic device can also play a role in preventing the spiral conveying shaft and the spiral blades from being scratched.
(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 on one hand, a sound insulation effect is achieved, on the other hand, a hot medium or a cold medium can conveniently enter the cavity, heat exchange is conducted with active carbon in the largest area, and the regeneration effect is good.
(4) According to the active carbon regeneration system, through the second regeneration system, the separation net is arranged in the electrode groove, the formed multiple electrode chambers are polarized under the action of the electric field to form the micro-electrolysis unit, on one hand, organic matters on the surface of the active carbon are desorbed by means of electrophoresis force in the regeneration process, and on the other hand, the electrolysis products generated by means of the electrolyte comprise strong oxidants such as chlorine, hypochlorous acid, hydroxyl radicals and the like to oxidize and decompose the adsorbate.
(5) According to the regeneration process of the active carbon regeneration system, the first regeneration system and the second regeneration system are adaptively selected for regeneration, vermiculite is added into the electrolyte, and as the vermiculite is also of a porous structure, and is combined with the aeration device and the ultrasonic device, the oxygen concentration in the electrolyte is improved, and 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 organic matters in the electrolytic active carbon are high, the regeneration effect is good, the active carbon is rapidly diffused and dissolved into the electrolyte under the action of ultrasound, and the adsorption sites of the active carbon are easier to recover.
Drawings
FIG. 1 is a block diagram of a regeneration process flow in accordance with a preferred embodiment of the present invention;
FIG. 2 is a second block diagram of a regeneration process flow in accordance with a preferred embodiment of the present invention;
FIG. 3 is a third block diagram of a regeneration process flow in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a first regeneration system in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of a second regeneration system in accordance with a preferred embodiment of the present invention;
in the figure, a 100-regenerator, a 101-feeding end, a 102-discharging end, a 103-outer shell, a 104-inner shell, a 105-spiral conveying shaft, a 106-baffle plate, a 107-elastic device, a 200-conveying device, a 300-dust removing device, a 400-cooling device, a 500-drying device, a 600-electrode tank, a 601-cathode plate, a 602-anode plate, a 603-screen and a 604-aeration device are arranged.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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 explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
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:
a regenerator 100, wherein the regenerator 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;
first driving means for driving the inner case 104 to rotate;
a second driving means for driving the screw conveying shaft 105 to rotate;
specifically, the first driving device and the second driving device can be driven by a motor;
the inner housing 104 rotates in the opposite direction coaxially with the screw shaft 105.
The first regeneration system and/or the second regeneration system can selectively regenerate the activated carbon saturated by adsorption on one hand; on the other hand, the inner shell 104 and the spiral conveying shaft 105 in the first regeneration system coaxially and reversely rotate, so that the activated carbon is more uniformly mixed during desorption, each activated carbon particle can be fully contacted with a heat medium, and the desorption regeneration effect is greatly enhanced.
As a preferred embodiment of the invention, it may also have the following additional technical features:
the shell is also internally provided with a material blocking device, a material blocking plate 106 is arranged on the shell, and a gap is reserved between the material blocking plate 106 and a helical blade on the helical conveying shaft 105.
The dam assembly further includes a spring assembly 107 for driving the reciprocal movement of the dam 106. Specifically, the elastic device can adopt a spring, so that the mechanical automatic reset is facilitated;
through setting up the blevile of push, avoid on the one hand at feed end 101 and discharge end 102 department raise dust, on the other hand, when the spiral conveying axle 105 and the helical blade on it are last to adhere to more ash and dirt, the striker plate 106 can also play the effect of scraping dirt, and resilient means can also play the effect of not scraping spiral conveying axle 105 and helical blade thereof.
The spiral conveying shaft 105 and the spiral blades on the spiral conveying shaft are hollow and are communicated with the cavity, and in specific application, the cavity is connected with a heat exchange medium system, the heat exchange medium system comprises a low-temperature fluid heat absorption medium (such as water, heat conduction oil or air), a pipeline/valve, a pump/fan and a heat release unit (such as a heating component in carbon powder drying equipment), the arrangement can play a role in sound insulation, on the other hand, the heat exchange is conveniently carried out on the spiral conveying shaft with the maximum area of active carbon by conveniently selecting the heat medium or the cold medium to enter the cavity, the regeneration effect is good, in particular, as the spiral shaft pushes the active carbon through the cutting, cutting and rotating friction actions of the spiral blades, almost every active carbon particle can be in direct contact with the spiral shaft blade, even if the heat conduction efficiency of the active carbon is not high, most of the heat exchange is caused through the cutting, cutting and friction of the spiral blade, and the direct contact of each active carbon powder with the spiral blade, so that the defect of the active carbon that the heat conduction efficiency is low is overcome; the material pipe clamping layer hollow structure of the screw conveyor can enable low-temperature fluid to circularly flow; the surface of the helical blade of the screw conveying shaft occupies 90% of the total heat exchange area, and the helical blade contributes to the heat exchange value of most, so that the heat exchange effect is greatly improved.
And also includes a cooling device in communication with the discharge end of the regenerator 100, the cooling device including a quench tank and a water delivery device for delivering water into the quench tank. Specifically, the water delivery device can be a water spray pipe, and a water curtain type spray head is arranged on the water spray pipe to form a water curtain for cooling and cleaning the activated carbon subjected to high-temperature desorption, so that harmful substances can be removed to a certain extent.
The drying device 500 comprises a blowing groove and a fan for conveying cold air into the blowing groove, and the cleaned activated carbon is dried. When the device is applied specifically, the device also comprises a conveying device 200 which 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 separate 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, 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 electrophoresis force in the regeneration process, and the electrolysis products generated by the electrolyte comprise strong oxidants such as chlorine, hypochlorous acid, hydroxyl radicals and the like to oxidize and decompose adsorbates.
An aeration device 604 and/or an ultrasonic device are/is also arranged in the electrode tank. The second regeneration system adds vermiculite in the electrolyte, because the vermiculite itself also has porous structure, combines aeration equipment and ultrasonic apparatus, improves the oxygen concentration in the electrolyte, and porous structure's vermiculite can hold partial oxygen other including in addition, when oxygen consumed in the electrolytic reaction, gradually desorbs again and continues the reaction, and organic matter is high in the electrolytic activated carbon, and regeneration effect is good, and under the ultrasonic action, by the diffusion of activated carbon in the electrolyte fast, dissolve, the adsorption site of activated carbon also is easier to resume.
In still other embodiments, a regeneration process of an activated carbon regeneration system includes the steps of:
and adding the activated carbon saturated by adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
When the adsorbed saturated activated carbon enters a 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 includes 4 temperature stages in sequence:
a first temperature stage: 100-300 ℃, preferably 280 ℃;
a second temperature stage: 300-600 ℃, preferably 570 ℃;
third temperature stage: 700-900 ℃, preferably 890 ℃;
fourth temperature stage: 950-1050 ℃, preferably 1000 ℃;
each temperature section can volatilize organic matters with different volatilization points, meanwhile, the activated carbon can be sintered in the third and fourth temperature sections, and the mechanical strength is further improved;
when the adsorption saturated active carbon enters the second regeneration system, the adsorption saturated active carbon is firstly placed in each electrode chamber, the cathode plate and the anode plate are respectively connected with direct-current voltage below the liquid level of electrolyte, then an ultrasonic device and an aeration device are started, and when the adsorption saturated active carbon is specifically applied, the electrolyte is NaCl solutionThe chloride ions are oxidized at the anode to chlorine gas which further reacts with water to form hypochlorous acid, HClO and Cl 2 Are strong oxidizing agents, and can oxidize most of organic matters adsorbed on the activated carbon and dissolved in the electrolyte. Cathode through H 2 O 2 And advanced oxidation of-OH, anode by HClO and Cl 2 Can oxidize the organic matters adsorbed on the activated carbon to achieve the aim of regenerating the activated carbon.
The above additional technical features can be freely combined and superimposed by a person skilled in the art without conflict.
In the description of the embodiments of the present invention, it is to be understood that "-" and "-" denote the same ranges of the two values, and the ranges include the endpoints. For example: "A-B" means a range greater than or equal to A and less than or equal to B. "A-B" means a range of greater than or equal to A and less than or equal to B.
In the description of embodiments of the present invention, the term "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The foregoing is only a preferred embodiment of the present invention, and all technical solutions for achieving the object of the present invention by substantially the same means are within the scope of the present invention.
Claims (6)
1. An activated carbon regeneration system, characterized in that: comprising a first regeneration system and a second regeneration system, the first regeneration system comprising:
the regeneration furnace (100), 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;
first driving means for driving the inner housing (104) to rotate;
a second driving device for driving the screw conveying shaft (105) to rotate;
the inner shell (104) and the spiral conveying shaft (105) coaxially and reversely rotate;
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 separate the electrolytic tank into a plurality of electrode chambers, and the electrode chambers are filled with electrolyte containing vermiculite;
the regeneration process of the regeneration system comprises the following steps:
adding the activated carbon with saturated adsorption into a first regeneration system and a second regeneration system for regeneration treatment;
when the adsorbed saturated activated carbon enters a 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 includes 4 temperature stages in sequence: a first temperature stage: 100-300 ℃; a second temperature stage: 300-600 ℃; third temperature stage: 700-900 ℃, fourth temperature stage: 950-1050 ℃;
when the adsorption saturated active carbon enters the second regeneration system, the adsorption saturated active carbon is firstly placed in 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 an ultrasonic device and an aeration device are started; the shell is internally provided with a material blocking device which is provided with a material blocking plate (106), and a gap is reserved between the material blocking plate (106) and a spiral blade on the spiral conveying shaft (105); the dam device also comprises an elastic device (107) for driving the dam plate (106) to reciprocate;
an aeration device (604) and an ultrasonic device are also arranged in the electrode tank.
2. An activated carbon regeneration system as in claim 1, wherein: the screw conveying shaft (105) and the screw blades on the screw conveying shaft are hollow and are communicated with the cavity.
3. An activated carbon regeneration system as in claim 1, wherein: the cooling device is communicated with the discharging end of the regenerating furnace (100), and comprises a quenching tank and a water delivery device for delivering water into the quenching tank.
4. An activated carbon regeneration system as in claim 1, wherein: the drying device (500) comprises a blowing groove and a fan for conveying cold air into the blowing groove.
5. A regeneration process of an activated carbon regeneration system as claimed in claim 1, characterized in that: the method comprises the following steps:
and adding the activated carbon saturated by adsorption into the first regeneration system and/or the second regeneration system for regeneration treatment.
6. The regeneration process of an activated carbon regeneration system of claim 5, wherein:
when the adsorbed saturated activated carbon enters a 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 includes 4 temperature stages in sequence: a first temperature stage: 100-300 ℃; a second temperature stage: 300-600 ℃; third temperature stage: 700-900 ℃, fourth temperature stage: 950-1050 ℃;
when the saturated activated carbon is absorbed and enters the second regeneration system, the saturated activated carbon is firstly placed in 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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| CN202010509486.7A CN111495347B (en) | 2020-06-04 | 2020-06-04 | Activated carbon regeneration system and regeneration process thereof |
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| CN115487644B (en) * | 2022-09-03 | 2023-11-21 | 安阳市洹鑫耐材有限责任公司 | Exhaust treatment equipment for environmental engineering |
| CN117180977A (en) * | 2023-10-26 | 2023-12-08 | 深碳科技(深圳)有限公司 | Solid amine desorption device and solid amine carbon trapping system |
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