CN111821962A - Industrial production device and production method of microwave regenerated activated carbon - Google Patents
Industrial production device and production method of microwave regenerated activated carbon Download PDFInfo
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- CN111821962A CN111821962A CN201910307816.1A CN201910307816A CN111821962A CN 111821962 A CN111821962 A CN 111821962A CN 201910307816 A CN201910307816 A CN 201910307816A CN 111821962 A CN111821962 A CN 111821962A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000009776 industrial production Methods 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 75
- 230000008929 regeneration Effects 0.000 claims abstract description 67
- 238000001816 cooling Methods 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000001301 oxygen Substances 0.000 claims abstract description 38
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 38
- 238000007599 discharging Methods 0.000 claims abstract description 35
- 238000005406 washing Methods 0.000 claims abstract description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 238000011049 filling Methods 0.000 claims description 17
- 239000000523 sample Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 6
- 238000010923 batch production Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000006303 photolysis reaction Methods 0.000 description 6
- 230000015843 photosynthesis, light reaction Effects 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- 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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/3441—Regeneration or reactivation by electric current, ultrasound or irradiation, e.g. electromagnetic radiation such as X-rays, UV, light, microwaves
Abstract
The invention discloses an industrial production device and a production method of microwave regenerated activated carbon. Has the advantages that: the invention realizes the continuous and automatic feeding and discharging by using the water-cooling spiral feeder and the water-cooling spiral discharger, simultaneously, the water-cooling spiral feeder and the water-cooling spiral discharger can seal the feeding port and the discharging port by using the active carbon, so that the microwave regeneration furnace is isolated from the outside air, the oxygen is prevented from entering, the production safety is ensured, the water-washing condensing tank adopts a water seal design, the active carbon dust in the flue gas can be recovered, the temperature of the flue gas can be reduced, the exhaust passage of the regeneration furnace is isolated from the outside air, the oxygen is prevented from entering the regeneration furnace, and the loss of the active carbon is reduced.
Description
Technical Field
The invention relates to the field of industrial equipment and processes, in particular to an industrial production device and a production method for microwave regenerated activated carbon.
Background
The active carbon is an excellent adsorbent, also called universal adsorbent; the activated carbon is widely applied to various fields of chemical industry, food, medicine, environmental protection and the like, and if the used activated carbon is not recycled, the activated carbon is subjected to incineration treatment, so that not only is the resource waste, but also the secondary pollution is caused to the environment, and therefore, the regeneration of the activated carbon has important significance 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. At present, the regeneration method of the activated carbon mainly comprises an electrochemical regeneration method, a supercritical fluid regeneration method, a solvent regeneration method, an oxidation regeneration method, a thermal regeneration method, a biological regeneration method and the like. However, these conventional activated carbon regeneration methods have the following disadvantages: (1) the loss of the active carbon is large; (2) the adsorption capacity is obviously reduced after regeneration; (3) new secondary pollution can be generated in the regeneration process; (4) the regeneration conditions are harsh, the implementability difficulty is high, the cost is high, and the economic benefit is low, so that an industrial production device for microwave regeneration of activated carbon is urgently needed to solve the existing problems.
Disclosure of Invention
The invention aims to solve the problems and provide an industrial production device and a production method for microwave regenerated activated carbon.
The invention realizes the purpose through the following technical scheme:
an industrial production device of microwave regeneration activated carbon comprises a feeding bin, a water-cooling spiral feeder and a microwave regeneration furnace, wherein the water-cooling spiral feeder is arranged on the lower side of the feeding bin, the microwave regeneration furnace is arranged on the lower side of the water-cooling spiral feeder, a nitrogen-filling electromagnetic valve is arranged on the outer side of the microwave regeneration furnace, a temperature probe is arranged on the lower side of the nitrogen-filling electromagnetic valve, a discharging position detector is arranged on the lower side of the microwave regeneration furnace, a water-cooling spiral discharger is arranged on the lower side of the discharging position detector, a finished product tank is arranged on the lower side of the water-cooling spiral discharger, a discharging valve is arranged on the lower side of the finished product tank, a first microwave generator is arranged on one side of the microwave regeneration furnace, which is far away from the temperature probe, a first power cabinet is arranged on one side of the, a power cabinet downside is provided with No. two power cabinets, No. one the power cabinet is kept away from a microwave generator one side is provided with the DCS switch board, the microwave regeneration stove upside is provided with material loading level detector, material loading level detector one side is provided with oxygen concentration detector, oxygen concentration detector keeps away from add feed bin one side and is provided with the washing condensate tank, washing condensate tank one side is provided with the draught fan, draught fan one side is provided with low temperature plasma purifier, low temperature plasma purifier upside is provided with the UV light-splitting ware.
Further, add the feed bin with water-cooling screw feeder passes through bolted connection, water-cooling screw feeder with microwave regeneration oven passes through bolted connection, fill nitrogen solenoid valve with microwave regeneration oven passes through bolted connection, microwave regeneration oven adopts double-deck design: the inner cavity is made of a high-temperature-resistant (over 1000 ℃) wave-transparent ceramic material and is an activated carbon regeneration cavity, and the size of the inner cavity is determined through accurate calculation and optimization, so that the uniformity and penetrability of microwave heating are ensured; the outer cavity is made of stainless steel material by welding and is closed to microwave.
Furthermore, the temperature probe is connected with the microwave regeneration oven through a clamping groove, the feeding level detector is connected with the microwave regeneration oven through a bolt, the discharging level detector is connected with the microwave regeneration oven through the clamping groove, the microwave frequency of the first microwave generator and the microwave frequency of the second microwave generator are preferably 915MHZ, and the microwave power is preferably 25-100 kilowatts.
Further, the water-cooling spiral discharging device is connected with the microwave regeneration furnace through a bolt, the water-cooling spiral discharging device is connected with the finished product tank through a bolt, the finished product tank is connected with the discharge valve through a bolt, circulating water is introduced into a shaft of the water-cooling spiral discharging device for cooling, the strength of the shaft is increased, the outer wall of the water-cooling spiral discharging device is cooled by adopting jacket-introduced circulating water, and materials are cooled to 40-60 ℃.
Further, the first microwave generator is connected with the microwave regeneration oven through bolts, the first microwave generator is electrically connected with the first power cabinet, and the water seal height of the water washing condensation tank is preferably 100-400 mm.
Furthermore, the second microwave generator is connected with the microwave regeneration oven through a bolt, and the second microwave generator is electrically connected with the second power supply cabinet.
Furthermore, the first power supply cabinet is electrically connected with the DCS control cabinet, and the second power supply cabinet is electrically connected with the DCS control cabinet.
Furthermore, the water washing condensation tank is connected with the induced draft fan through a pipeline, and the induced draft fan is connected with the low-temperature plasma purifier through a pipeline.
Further, the UV light is separated ware with low temperature plasma clarifier passes through the pipe connection, water-cooling spiral feeder with go up the material level detector with unloading position detector linkage, fill nitrogen solenoid valve with go up the material level detector oxygen concentration detector linkage, low temperature plasma clarifier with the UV light is separated ware with oxygen concentration detector linkage, a microwave generator with No. two microwave generators with oxygen concentration detector and temperature probe linkage, water-cooling spiral discharger with temperature probe a microwave generator No. two microwave generators unloading position detector linkage.
The invention has the beneficial effects that:
1. the invention realizes the continuous and automatic feeding and discharging by using the water-cooling spiral feeder and the water-cooling spiral discharger, and simultaneously, the active carbon in the water-cooling spiral feeder and the water-cooling spiral discharger can seal the feeding port and the discharging port, so that the microwave regeneration furnace is isolated from the outside air, the oxygen is prevented from entering, and the production safety is ensured.
2. The water-washing condensing tank adopts a water seal design, can recover the active carbon dust in the flue gas, can reduce the temperature of the flue gas, can realize the isolation of a smoke exhaust channel of the regenerating furnace from the outside air, prevents oxygen from entering the regenerating furnace, and reduces the loss of the active carbon.
3. The invention selects 915MHZ microwave, improves the efficiency of converting electric energy into microwave energy, enhances the penetrability of microwave, and has good quality and high efficiency of regenerated active carbon.
4. The invention realizes the industrial production of the microwave regenerated active carbon, and the production operation is safe and simple; the production process is environment-friendly and pollution-free; the production parameters can be adjusted and controlled according to different types of regenerated active carbon, the regeneration quality and yield of the active carbon are greatly improved, and the regeneration cost of the active carbon is greatly reduced.
Drawings
FIG. 1 is a production flow chart of an industrial production device for microwave regeneration of activated carbon.
The reference numerals are explained below:
1. a feeding bin; 2. a water-cooled screw feeder; 3. a microwave regenerative furnace; 4. a nitrogen charging electromagnetic valve; 5. a temperature probe; 6. a blanking position detector; 7. a water-cooled spiral discharger; 8. a finished product tank; 9. a discharge valve; 10. a material loading level detector; 11. an oxygen concentration detector; 12. washing a condensation tank with water; 13. an induced draft fan; 14. a first microwave generator; 15. a second microwave generator; 16. a first power cabinet; 17. a second power supply cabinet; 18. a DCS control cabinet; 19. a low temperature plasma purifier; 20. and (4) a UV photolyzer.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
as shown in fig. 1, an industrial production device for microwave regenerated activated carbon comprises a feeding bin 1, a water-cooled screw feeder 2 and a microwave regeneration furnace 3, wherein the water-cooled screw feeder 2 is arranged on the lower side of the feeding bin 1, the microwave regeneration furnace 3 is arranged on the lower side of the water-cooled screw feeder 2, a nitrogen-filled electromagnetic valve 4 is arranged on the outer side of the microwave regeneration furnace 3, a temperature probe 5 is arranged on the lower side of the nitrogen-filled electromagnetic valve 4, a discharging level detector 6 is arranged on the lower side of the microwave regeneration furnace 3, a water-cooled screw discharger 7 is arranged on the lower side of the discharging level detector 6, a finished product tank 8 is arranged on the lower side of the water-cooled screw discharger 7, a discharge valve 9 is arranged on the lower side of the finished product tank 8, a microwave generator 14 is arranged on one side of the microwave regeneration furnace 3 away from the temperature probe 5, a power supply cabinet 16, no. one 14 downside of microwave generator is provided with No. two microwave generator 15, 16 downside of power cabinet are provided with No. two power cabinets 17, No. one power cabinet 16 is kept away from 14 one side of microwave generator is provided with DCS switch board 18, 3 upsides of microwave regenerator are provided with material level detector 10, material level detector 10 one side of going up is provided with oxygen concentration detector 11, oxygen concentration detector 11 is kept away from it is provided with washing condensate tank 12 to add 1 one side in feed bin, washing condensate tank 12 one side is provided with draught fan 13, draught fan 13 one side is provided with low temperature plasma purifier 19, 19 upsides of low temperature plasma purifier are provided with UV photolysis ware 20.
In this embodiment, add feed bin 1 with water-cooling screw feeder 2 passes through bolted connection, water-cooling screw feeder 2 with microwave regeneration oven 3 passes through bolted connection, fill nitrogen solenoid valve 4 with microwave regeneration oven 3 passes through bolted connection, microwave regeneration oven 3 adopts double-deck design: the inner cavity is made of a wave-transparent ceramic material with high temperature resistance of more than 1000 ℃ and is an activated carbon regeneration cavity, and the size of the inner cavity is determined by accurate calculation and optimization, so that the uniformity and penetrability of microwave heating are ensured; the outer cavity is made of stainless steel material by welding and is closed to microwave.
In this embodiment, the temperature probe 5 is connected with the microwave regeneration oven 3 through a card slot, the feeding level detector 10 is connected with the microwave regeneration oven 3 through a bolt, the discharging level detector 6 is connected with the microwave regeneration oven 3 through a card slot, the microwave frequencies of the first microwave generator 14 and the second microwave generator 15 are preferably 915MHZ, and the microwave power is preferably 25 kw to 100 kw.
In this embodiment, the water-cooling spiral discharger 7 is connected with the microwave regeneration furnace 3 through a bolt, the water-cooling spiral discharger 7 is connected with the finished product tank 8 through a bolt, the finished product tank 8 is connected with the discharge valve 9 through a bolt, the water-cooling spiral discharger 7 is cooled by circulating water introduced into a shaft, the strength of the shaft is increased, the outer wall of the water-cooling spiral discharger 7 is cooled by circulating water introduced into a jacket, and the material is cooled to 40-60 ℃.
In this embodiment, the first microwave generator 14 is connected with the microwave regeneration oven 3 through a bolt, the first microwave generator 14 is electrically connected with the first power cabinet 16, and the water seal height of the water washing condensation tank 12 is preferably 100-400 mm.
In this embodiment, the second microwave generator 15 is connected to the microwave regeneration oven 3 by bolts, and the second microwave generator 15 is electrically connected to the second power cabinet 17.
In this embodiment, the first power supply cabinet 16 is electrically connected to the DCS control cabinet 18, and the second power supply cabinet 17 is electrically connected to the DCS control cabinet 18.
In this embodiment, the water washing condensation tank 12 and the induced draft fan 13 are connected through a pipeline, the induced draft fan 13 and the low temperature plasma purifier 19 are connected through a pipeline.
In this embodiment, UV photodissociation ware 20 with low temperature plasma clarifier 19 passes through the pipe connection, water-cooling spiral feed ware 2 with go up material level detector 10 with go up material level detector 6 linkage, fill nitrogen solenoid valve 4 with go up material level detector 10 oxygen concentration detector 11 linkage, low temperature plasma clarifier 19 with UV photodissociation ware 20 with oxygen concentration detector 11 linkage, a microwave generator 14 with No. two microwave generator 15 with oxygen concentration detector 11 and temperature probe 5 linkage, water-cooling spiral discharge ware 7 with temperature probe 5 a microwave generator 14 No. two microwave generator 15 the linkage of unloading position detector 6.
A use method of an industrial production device for microwave regeneration of activated carbon comprises the following steps: when manual production is carried out, a, firstly, whether circulating water of a microwave system, circulating water of the water-cooling spiral discharging device 7, a water seal liquid level of the water-washing condensing tank 12, circulating water of the water-washing condensing tank 12, the induced draft fan 13, the low-temperature plasma purifier 19, the UV photolysis device 20 and other hydroelectric facilities are normal is checked; b, opening the DCS control cabinet 18, and adjusting intelligent operation into a hand control mode; c, adding activated carbon to be regenerated into the feeding bin 1 on the upper side of the water-cooled screw feeder 2, wherein the water content of the activated carbon is less than or equal to 50%, manually starting the water-cooled screw feeder 2 to start feeding, and stopping feeding when the feeding level detector 10 turns green, wherein the feeding weight is about 150 kg/batch; d, manually opening the nitrogen filling electromagnetic valve 4, starting filling nitrogen and removing oxygen, observing the change of the detected value of the oxygen content in the oxygen concentration detector 11, closing the flow of the nitrogen filling electromagnetic valve 4 when the oxygen content reaches the requirement of less than 4-8%, controlling a small amount of nitrogen filling, and maintaining the oxygen content to be less than 4-8%; e, starting power supplies of the first microwave generator 14 and the second microwave generator 15, starting to heat, observing temperature change of the materials, and stopping microwave heating when the temperature reaches the required temperature; f, manually opening the water-cooling spiral discharging device 7, discharging, packaging and weighing, wherein the yield is more than 95%; the activated carbon regenerated products obtained by the method meet the regulations according to the industrial standard inspection, and the single-batch production time is about 1.2 hours per batch; when the production needs to be automatically controlled, a, firstly, checking whether the circulating water of a microwave system, the circulating water of the water-cooling spiral discharging device 7, the water seal liquid level of the water-washing condensing tank 12, the circulating water of the water-washing condensing tank 12, the induced draft fan 13, the low-temperature plasma purifier 19, the UV photolysis device 20 and other hydroelectric facilities are normal; b, opening the DCS control cabinet 18, and adjusting intelligent operation into an automatic control mode; c, adding activated carbon to be regenerated into the feeding bin 1 of the water-cooled screw feeder 2, wherein the water content is less than or equal to 50%, the water-cooled screw feeder 2 automatically starts feeding, and the feeding weight is automatically stopped to be about 150 kg/batch when the feeding level detector 10 turns green; d, after the feeding is stopped, the nitrogen filling electromagnetic valve 4 is automatically opened to start filling nitrogen and removing oxygen, when the oxygen content reaches a set value, the flow of the nitrogen filling electromagnetic valve 4 is reduced, a small amount of nitrogen filling is controlled, and the oxygen content is maintained; e, after the oxygen content reaches a set value, the induced draft fan 13, the low-temperature plasma purifier 19 and the UV photolysis device 20 operate, and the first power cabinet 16 and the second power cabinet 17 are automatically started, so that the first microwave generator 14 and the second microwave generator 15 start heating and warming the microwave regeneration furnace 3, and when the temperature of the regeneration materials reaches the set temperature, the microwave heating automatically stops; f, when the temperature of the regenerated material reaches the set temperature, the water-cooled spiral discharging device 7 is automatically opened to discharge, and after packaging and weighing, the yield is more than 95 percent; the regenerated active carbon product obtained by the method meets the specification according to the industrial standard inspection, and the single-batch production time is about 1 hour/batch.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The industrial production device for microwave regeneration of activated carbon is characterized in that: comprises a feeding bin (1), a water-cooling spiral feeder (2) and a microwave regeneration furnace (3), wherein the lower side of the feeding bin (1) is provided with the water-cooling spiral feeder (2), the lower side of the water-cooling spiral feeder (2) is provided with the microwave regeneration furnace (3), a nitrogen-filling electromagnetic valve (4) is arranged outside the microwave regeneration furnace (3), a temperature probe (5) is arranged on the lower side of the nitrogen-filling electromagnetic valve (4), a discharging level detector (6) is arranged on the lower side of the microwave regeneration furnace (3), a water-cooling spiral discharger (7) is arranged on the lower side of the discharging level detector (6), a finished product tank (8) is arranged on the lower side of the water-cooling spiral discharger (7), a discharge valve (9) is arranged on the lower side of the finished product tank (8), the microwave regeneration furnace (3) is far away from the temperature probe (, keep away from microwave generator (14) microwave regenerator (3) one side is provided with power cabinet (16) No. one, microwave generator (14) downside is provided with No. two microwave generator (15), power cabinet (16) downside is provided with No. two power cabinet (17), No. one power cabinet (16) are kept away from microwave generator (14) one side is provided with DCS switch board (18), microwave regenerator (3) upside is provided with material loading level detector (10), material loading level detector (10) one side is provided with oxygen concentration detector (11), oxygen concentration detector (11) are kept away from add feed bin (1) one side and are provided with water washing condensate tank (12), water washing condensate tank (12) one side is provided with draught fan (13), draught fan (13) one side is provided with low temperature plasma purifier (19), and a UV (ultraviolet) photolyzer (20) is arranged on the upper side of the low-temperature plasma purifier (19).
2. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: add feed bin (1) with water-cooling screw feeder (2) pass through bolted connection, water-cooling screw feeder (2) with microwave regeneration stove (3) pass through bolted connection, fill nitrogen solenoid valve (4) with microwave regeneration stove (3) pass through bolted connection, microwave regeneration stove (3) adopt double-deck design: the inner cavity is made of a high-temperature-resistant (over 1000 ℃) wave-transparent ceramic material and is an activated carbon regeneration cavity, and the size of the inner cavity is determined through accurate calculation and optimization, so that the uniformity and penetrability of microwave heating are ensured; the outer cavity is made of stainless steel material by welding and is closed to microwave.
3. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the temperature probe (5) is connected with the microwave regeneration oven (3) through a clamping groove, the feeding level detector (10) is connected with the microwave regeneration oven (3) through a bolt, the discharging level detector (6) is connected with the microwave regeneration oven (3) through a clamping groove, the microwave frequency of the first microwave generator (14) and the microwave frequency of the second microwave generator (15) are preferably MHZ 915, and the microwave power is preferably 25-100 kilowatts.
4. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the microwave regeneration furnace is characterized in that the water-cooling spiral discharging device (7) is connected with the microwave regeneration furnace (3) through bolts, the water-cooling spiral discharging device (7) is connected with the finished product tank (8) through bolts, the finished product tank (8) is connected with the discharge valve (9) through bolts, the water-cooling spiral discharging device (7) is cooled by circulating water communicated with the shaft, the strength of the shaft is improved, the outer wall of the water-cooling spiral discharging device (7) is cooled by circulating water communicated with a jacket, and the material is cooled to 40-60 ℃.
5. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the first microwave generator (14) is connected with the microwave regeneration oven (3) through bolts, the first microwave generator (14) is electrically connected with the first power cabinet (16), and the water seal height of the water washing condensation tank (12) is preferably 100-400 mm.
6. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the second microwave generator (15) is connected with the microwave regeneration oven (3) through bolts, and the second microwave generator (15) is electrically connected with the second power supply cabinet (17).
7. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the first power supply cabinet (16) is electrically connected with the DCS control cabinet (18), and the second power supply cabinet (17) is electrically connected with the DCS control cabinet (18).
8. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the washing condensing tank (12) is connected with the induced draft fan (13) through a pipeline, and the induced draft fan (13) is connected with the low-temperature plasma purifier (19) through a pipeline.
9. The industrial production device of microwave regenerated activated carbon according to claim 1, characterized in that: the UV photolyzer (20) is connected with the low-temperature plasma purifier (19) through a pipeline, the water-cooling screw feeder (2) is linked with the feeding level detector (10) and the discharging level detector (6), the nitrogen charging electromagnetic valve (4) is linked with the material loading level detector (10) and the oxygen concentration detector (11), the low-temperature plasma purifier (19) and the UV light splitter (20) are linked with the oxygen concentration detector (11), the first microwave generator (14) and the second microwave generator (15) are linked with the oxygen concentration detector (11) and the temperature probe (5), the water-cooling spiral discharging device (7) is linked with the temperature probe (5), the first microwave generator (14), the second microwave generator (15) and the discharging position detector (6).
10. A method for using an industrial production device for microwave regenerated activated carbon, which is applied to the industrial production device for microwave regenerated activated carbon of any one of claims 1 to 9, and is characterized in that: when manual production is carried out, (a) whether circulating water of a microwave system, circulating water of the water-cooling spiral discharging device (7), water seal liquid level of the water-washing condensing tank (12), circulating water of the water-washing condensing tank (12), the induced draft fan (13), the low-temperature plasma purifier (19), the UV light splitter (20) and other hydroelectric facilities are normal is checked; (b) opening the DCS control cabinet (18), and adjusting intelligent operation into a hand control mode; (c) adding activated carbon to be regenerated (the water content is less than or equal to 50%) into the feeding bin (1) on the upper side of the water-cooled screw feeder (2), manually starting the water-cooled screw feeder (2) to start feeding, and stopping feeding (the feeding weight is about 150 kg/batch) when the feeding level detector (10) turns green; (d) manually opening the nitrogen filling electromagnetic valve (4), starting filling nitrogen and removing oxygen, observing the change of the detected value of the oxygen content in the oxygen concentration detector (11), closing the flow of the nitrogen filling electromagnetic valve (4) when the oxygen content reaches the requirement (less than 4-8%), controlling a small amount of nitrogen filling, and maintaining the oxygen content to be less than 4-8%; (e) starting power supplies of the first microwave generator (14) and the second microwave generator (15), starting to heat, observing the temperature change of the materials, and stopping microwave heating when the temperature reaches the required temperature; (f) manually opening the water-cooling spiral discharging device (7), discharging, packaging and weighing, wherein the yield is more than 95%; the activated carbon regenerated products obtained by the method meet the regulations according to the industrial standard inspection, and the single-batch production time is about 1.2 hours per batch; when the production needs to be automatically controlled, (a) whether circulating water of a microwave system, circulating water of the water-cooling spiral discharging device (7), water seal liquid level of the water-washing condensing tank (12), circulating water of the water-washing condensing tank (12), the induced draft fan (13), the low-temperature plasma purifier (19), the UV light splitter (20) and other hydroelectric facilities are normal is checked; (b) opening the DCS control cabinet (18), and adjusting intelligent operation into an automatic control mode; (c) adding activated carbon to be regenerated (the water content is less than or equal to 50%) into the feeding bin (1) of the water-cooled screw feeder (2), automatically starting feeding by the water-cooled screw feeder (2), and automatically stopping feeding (the feeding weight is about 150 kg/batch) after the feeding level detector (10) turns green; (d) after feeding is stopped, the nitrogen-filled electromagnetic valve (4) is automatically opened to start filling nitrogen and removing oxygen, when the oxygen content reaches a set value, the flow of the nitrogen-filled electromagnetic valve (4) is reduced, a small amount of nitrogen is controlled to be filled, and the oxygen content is maintained; (e) after the oxygen content reaches a set value, the induced draft fan (13), the low-temperature plasma purifier (19) and the UV photolyzer (20) operate, and the first power cabinet (16) and the second power cabinet (17) are automatically started, so that the first microwave generator (14) and the second microwave generator (15) start heating and warming the microwave regeneration furnace (3), and when the temperature of the regeneration material reaches the set temperature, the microwave heating is automatically stopped; (f) when the temperature of the regenerated material reaches the set temperature, the water-cooled spiral discharging device (7) is automatically opened to discharge, and after packaging and weighing, the yield is more than 95 percent; the regenerated active carbon product obtained by the method meets the specification according to the industrial standard inspection, and the single-batch production time is about 1 hour/batch.
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Application publication date: 20201027 |