CN113620292A - Powdered activated carbon regeneration system and regeneration method - Google Patents
Powdered activated carbon regeneration system and regeneration method Download PDFInfo
- Publication number
- CN113620292A CN113620292A CN202111057270.2A CN202111057270A CN113620292A CN 113620292 A CN113620292 A CN 113620292A CN 202111057270 A CN202111057270 A CN 202111057270A CN 113620292 A CN113620292 A CN 113620292A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- plate
- heating cylinder
- activation furnace
- wave
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention belongs to the technical field of activated carbon regeneration in energy-saving and environment-friendly technologies, and particularly relates to a powdered activated carbon regeneration system and a powdered activated carbon regeneration method. This powder activated carbon regeneration system includes drying cabinet, carbomorphism jar and activation equipment, and the activation equipment is including the feed mechanism, intensification mechanism and the tail gas treatment mechanism that set gradually, and intensification mechanism includes cylindric activation furnace, and the relative horizontal plane slope of activation furnace sets up, and the inside below of activation furnace is provided with the concrete platform, and the concrete bench is provided with ring gear actuating mechanism, and ring gear actuating mechanism cup joints in the activation furnace middle part outside, and the inside coaxial heating cylinder that is provided with of activation furnace. The powdered activated carbon regeneration system can sufficiently heat activated carbon.
Description
Technical Field
The invention belongs to the technical field of activated carbon regeneration in energy-saving and environment-friendly technologies, and particularly relates to a powdered activated carbon regeneration system and a powdered activated carbon regeneration method.
Background
Energy conservation and environmental protection are global concerns in resource shortage and environmental pollution because economic development is closely related to energy. Under the condition that the global energy crisis is gradually highlighted, all countries in the world have vigorously pushed energy strategies, and the problem of resource waste related to energy conservation and environmental protection is of great concern, wherein it needs to be pointed out that activated carbon used in industrial production can be directly discarded, which not only causes resource waste, but also causes environmental pollution, and even if the activated carbon is treated, the treatment cost is higher because the activated carbon is generally regarded as dangerous waste, and if the waste powdered activated carbon can be regenerated by an effective method, the treatment cost of the dangerous waste is reduced, and the reusability of the activated carbon can be increased.
In order to save energy and protect environment, the most mature process used at present is a thermal regeneration method, namely, used active carbon is heated in a carbonization tank as the name suggests, so that organic matters adsorbed by the active carbon are carbonized and decomposed at high temperature and finally become molecules with the diameter smaller than the pore diameter of the active carbon to escape. Then, in the activation furnace, gas such as carbon dioxide, carbon monoxide or hydrogen can be introduced into the reaction kettle to clean micropores of the activated carbon and restore the adsorption performance of the activated carbon, so that the activated carbon is regenerated, the activation stage is the key of the whole regeneration process, and the method can restore the efficacy of the activated carbon by 90%.
The existing dangerous waste activated carbon treatment equipment is formed by transforming new activated carbon production equipment or waste incineration equipment, and part of the treatment equipment is only a simple desorption process, wherein the phenomenon of insufficient heating easily occurs in the process that activated carbon is conveyed to pass through an activation furnace with a fixed length and is heated.
Disclosure of Invention
In view of the above problems, the present invention provides a powdered activated carbon regeneration system and a powdered activated carbon regeneration method, which can sufficiently heat activated carbon.
In order to achieve the purpose, the invention provides the following technical scheme: a powdered activated carbon regeneration system comprises a drying tank, a carbonization tank and activation equipment, wherein the activation equipment comprises a feeding mechanism, a heating mechanism and a tail gas treatment mechanism which are sequentially arranged, the heating mechanism comprises a cylindrical activation furnace, the activation furnace is obliquely arranged relative to a horizontal plane, a concrete platform is arranged below the inner part of the activation furnace, a gear ring driving mechanism is arranged on the concrete platform, the gear ring driving mechanism is sleeved on the outer side of the middle part of the activation furnace, a heating cylinder is coaxially arranged in the activation furnace, the outer wall of the end part of the heating cylinder is fixedly connected to the inner wall of the activation furnace, a plurality of strip-shaped carbon outlet grooves are formed in the peripheral surface of the heating cylinder in a penetrating way and are fixedly provided with a plurality of retarding plates, the positions of the plurality of retarding plates and the positions of the plurality of carbon outlet grooves are respectively in one-to-one correspondence, so that each carbon outlet groove falls on the corresponding retarding plate along the radial outward projection of the heating cylinder, the retarding plates are obliquely arranged relative to the peripheral surface of the heating cylinder and are tangent to the peripheral surface of the retarding plates, the surface of one side of the slow board facing the charcoal outlet groove is covered with a wave plate, and when the activation furnace drives the heating cylinder to rotate, the activated carbon separated from the charcoal outlet groove can fall onto the slow board and gradually slide along the wave plate to the inner wall of the activation furnace.
In one embodiment, a plurality of strip-shaped wave crests are convexly arranged on the surface of the wave plate, strip-shaped wave troughs are formed between every two adjacent strip-shaped wave crests, and when the heating cylinder drives the speed-reducing plate to turn over from the lower part to the upper part of the side part of the heating cylinder, the residual activated carbon in the strip-shaped wave troughs of the wave plate can be sprinkled onto the peripheral side wall of the heating cylinder so as to heat the activated carbon by using the high-temperature surface layer on the outer side of the heating cylinder.
In one embodiment, the feeding mechanism comprises a lifting machine, a lifting machine bin is arranged on one side of the lifting machine, a platform is arranged on the other side of the lifting machine, a storage bin is mounted at the top of the platform, a spiral feeding machine is communicated with the bottom of the storage bin, and the output end of the spiral feeding machine is inserted into one end of the activation furnace.
In one embodiment, the tail gas treatment mechanism comprises a main channel and a side channel, the main channel comprises a secondary incinerator, a steam waste heat boiler, an induced draft fan, a cyclone dust collector, a bag-type dust collector, a water spray tower and a chimney which are sequentially connected through a pipeline, and the secondary incinerator is communicated with the tail end of the activation furnace; the bypass channel comprises a second cyclone dust collector and a second bag-type dust collector which are sequentially connected, and the second cyclone dust collector is communicated with the activation furnace through a pipeline.
In one embodiment, a round pipe is arranged at a position, close to each speed reducing plate, of the heating cylinder, the round pipe extends towards the wave plate of the adjacent speed reducing plate in an inclined mode, one end of the round pipe is hinged to the outer peripheral surface of the heating cylinder, a top rod is inserted into the other end of the round pipe in a sliding mode, one end of the top rod is inserted into the round pipe in a non-falling mode, a gravity shifting roller is fixedly arranged at the other end of the top rod, the middle of the gravity shifting roller is vertically connected to the end portion of the top rod, the gravity shifting roller is supported in one strip-shaped wave trough of the wave plate in a sliding mode, and a plurality of gas spray holes are formed in the gravity shifting roller.
In one of the embodiment, ejector pin middle part fixedly connected with keeps off the gas plate spare, it is parallel that the roller is dialled to the relative gravity of gas plate spare, one side that the gas plate spare deviates from the ejector pin extends towards the wave board slope, and a side surface that the gas plate spare is back of the body ejector pin is formed with a plurality of flanges, a plurality of flanges are arranged along the length direction who keeps off the gas plate spare, the protruding department swing joint of every flange has the needle to dial the piece, the both sides that every needle was dialled the piece all are connected with the gas plate spare of keeping off through the extension spring, be provided with the gas pocket in the needle dials the piece, a plurality of needles are dialled the piece and are used for stirring the active carbon and to the active carbon blowout gas, in order to clear up the micropore of active carbon, make the active carbon resume adsorption performance.
In one of them embodiment, the heating cylinder is inside to be provided with a plurality of material subassemblies that draw, a plurality of material subassemblies that draw and a plurality of play charcoal groove one-to-one, every draws the material subassembly and includes two curved heat pterygoid lamina, two equal fixed connection of heat pterygoid lamina are in the heating cylinder inner wall and lie in the relative both sides in the play charcoal groove that corresponds respectively, the interval between two heat pterygoid lamina of every material subassembly that draws diminishes gradually along the direction towards the heating cylinder axis, a plurality of through-holes have been seted up on the heat pterygoid lamina surface, be formed with the stoving chamber between two heat pterygoid lamina.
In one embodiment, a convex arc surface is formed on one side of each heat increasing wing plate, which is far away from the drying cavity, and when one heat increasing wing plate in the front side of each material guiding assembly in the rotating direction of the heating cylinder is driven to the upper side by the heating cylinder, the convex arc surface on the heat increasing wing plate is used for guiding the activated carbon outside the drying cavity to slide down.
The invention also provides a powdered activated carbon regeneration method adopting the powdered activated carbon regeneration system, which comprises the following steps:
the method comprises the following steps: putting the used activated carbon into a drying tank for drying, removing volatile components on the activated carbon, and taking out the dried activated carbon and transferring the dried activated carbon to a carbonization area;
step two: putting the dried active carbon in the step one into a carbonization tank, and carbonizing under vacuum or inert atmosphere;
step three: putting the carbonized active carbon in the step two into a feeding mechanism, feeding the carbonized active carbon into an activation furnace through the feeding mechanism, and conveying the carbonized active carbon into the activation furnace through a screw feeder;
step four: the gear ring driving mechanism drives the activation furnace to rotate, the heating cylinder rotates along with the activation furnace, when the activated carbon falls out of the carbon outlet groove, the activated carbon falling to the surface of the speed-reducing plate is retained on the surface of the speed-reducing plate and gradually slides along the surface of the wave plate, and in the process that the speed-reducing plate gradually rotates to the horizontal position, the sliding speed of the activated carbon on the surface of the speed-reducing plate is gradually reduced, so that the retention heating time of the activated carbon is prolonged;
step five: in the rotation process of the heating cylinder, the ejector rod in the round pipe fitting slides out, the gravity shifting roller at the end part of the ejector rod reaches the edge of the outermost edge of the wave plate and moves towards one side out of the carbon groove along the surface of the wave plate, the gravity shifting roller sequentially passes through the strip-shaped wave trough and the strip-shaped wave crest and gradually moves, and when the activated carbon is shifted, cleaning gas is sprayed out through the gas spray holes to clean micropores of the activated carbon, so that the activated carbon can recover activity;
step six: in the process of further rotating and descending the wave plate, the wave plate rotates from a horizontal state to the process that the outer end of the wave plate is at a lower position, the gravity poking roller moves towards the outer end of the wave plate through the strip-shaped wave troughs and the strip-shaped wave crests in sequence, and pokes the activated carbon and simultaneously ejects cleaning gas.
The invention has the technical effects and advantages that:
1. in the invention, in the process that the gear ring driving mechanism drives the activation furnace to rotate, the heating cylinder rotates along with the activation furnace, when the activated carbon falls out of the carbon outlet groove, the activated carbon falling to the surface of the speed reducing plate can be retained on the surface of the speed reducing plate and gradually slides along the surface of the speed reducing plate to do smooth motion, and the activated carbon cannot directly vertically fall downwards, so that the running time near a high-temperature layer on the outer surface of the heating cylinder is prolonged, and in the process that the speed reducing plate gradually rotates to the horizontal position, the sliding speed of the activated carbon on the surface of the speed reducing plate is gradually reduced, so that the retaining time of the activated carbon is prolonged, and the activated carbon can be fully heated under the condition of the activation furnace with the same length.
2. In the rotating process of the heating cylinder, the ejector rod in the round pipe fitting slides out, the gravity shifting roller at the end part of the ejector rod reaches the edge of the outermost end of the wave plate and moves towards one side of the carbon outlet groove along the surface of the wave plate, the gravity shifting roller sequentially passes through the strip-shaped wave troughs and the strip-shaped wave crests and gradually moves, when the gravity shifting roller shifts the active carbon, cleaning gas is sprayed out through the gas spray holes to clean micropores of the active carbon, so that the active carbon can recover activity, in the further rotating and descending process of the wave plate, the wave plate rotates to the process that the outer end of the wave plate is located at the lower position from the horizontal state, the gravity shifting roller sequentially passes through the strip-shaped wave troughs and the strip-shaped wave crests to move towards the outer end of the wave plate, and shifts the active carbon and simultaneously sprays the cleaning gas.
3. Because the active carbon of following exhaust in the cartridge heater has already gone through the heating, follow-up more needs carry out micropore clearance operation, consequently when the inside active carbon of cartridge heater is more, the retarder plate does not rotate before the below, when the play charcoal groove that the retarder plate corresponds drops out the active carbon, and the active carbon strikes in a large number and keeps off gas plate spare department, and the dead time of multiplicable active carbon, the needle-like piece blowout clearance gas of dialling this moment. The active carbon strikes flange and needle-like piece department of dialling, not only the needle-like piece of dialling plays the scattering effect to the active carbon, be favorable to moreover expanding the gaseous loss scope of spun clearance in the needle-like piece of dialling in the action of dispersion active carbon, increase the area of contact of active carbon and clearance gas, simultaneously because the striking of active carbon, the needle-like piece of dialling can take place reciprocal deflection, when the extension spring is tensile or compressed, all can weaken the impact of active carbon, and improve the gaseous clearance effect to the active carbon micropore of clearance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view showing the overall construction of a powdered activated carbon regeneration system according to the present invention;
FIG. 2 is a sectional view of an activation furnace according to the present invention;
FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;
fig. 4 is a schematic structural view of a heat gain panel according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;
in the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a powdered activated carbon regeneration system as shown in fig. 1-4, which comprises a drying tank 1, a carbonization tank 2 and an activation device 3, wherein the activation device 3 comprises a feeding mechanism 31, a heating mechanism 32 and a tail gas treatment mechanism 33 which are sequentially arranged, the heating mechanism 32 comprises a cylindrical activation furnace 321, and the activation furnace 321 is obliquely arranged relative to a horizontal plane and has a smaller inclination angle. The concrete table 322 is arranged below the middle of the activation furnace 321, the gear ring driving mechanism 327 is arranged on the concrete table 322, the gear ring driving mechanism 327 is sleeved on the outer side of the middle of the activation furnace 321, the heating cylinder 323 is coaxially arranged inside the activation furnace 321, and the outer wall of the end part of the heating cylinder 323 is fixedly connected to the inner wall of the activation furnace 321, for example, connected to the inner wall of the activation furnace 321 through a fixing rod. The heating cylinder 323 has a plurality of strip-shaped char-forming grooves 324 formed through the circumferential surface thereof, and the strip-shaped char-forming grooves 324 extend in the longitudinal direction of the heating cylinder 323 and are located in the rear half of the heating cylinder 323, for example. A plurality of speed reducing plates 325 are further fixed on the outer peripheral surface of the heating cylinder 323, and the positions of the speed reducing plates 325 and the positions of the charcoal outlet grooves 324 are respectively in one-to-one correspondence, so that the outward projection of each charcoal outlet groove 324 along the radial direction of the heating cylinder 323 falls on the corresponding speed reducing plate 325. Specifically, the retarding plate 325 is disposed on one side of the charcoal outlet groove 324, and a distance is formed between the middle of the retarding plate 325 and the charcoal outlet groove 324. The retarding plate 325 is obliquely arranged relative to the circumferential surface of the heating cylinder 323, the surface of the retarding plate 325 is tangential to the circumferential surface of the heating cylinder 323, the surface of the retarding plate 325 facing one side of the charcoal outlet groove 324 is covered with a corrugated plate 326, and when the activating furnace 321 drives the heating cylinder 323 to rotate, the activated carbon coming out of the charcoal outlet groove 323 can fall onto the retarding plate 325 and gradually slide along the corrugated plate 326 onto the inner wall of the activating furnace 321.
The drying tank 1 is mainly used for removing volatile components on the activated carbon, the carbonization tank 2 is mainly used for boiling and vaporizing a part of organic matters adsorbed on the activated carbon in a vacuum or inert gas environment, a part of organic matters are decomposed to generate micromolecular hydrocarbon to be desorbed, residual components are left in pores of the activated carbon to become fixed carbon, activated carbon micropores can be heated and cleaned in the activation equipment 3, the activated carbon recovers the adsorption performance, the regeneration of the activated carbon is completed, and the micropores of the activated carbon can be cleaned by using gases such as carbon dioxide, carbon monoxide or hydrogen. For example, the speed reducing plate 325 is disposed obliquely with respect to the charcoal outlet groove 324.
When the activation device 3 is used, carbonized activated carbon is conveyed to the inside of the activation furnace 321 through the feeding mechanism 31, the activated carbon firstly enters the heating cylinder 323 to be heated, the heating cylinder 323 rotates along with the activation furnace 321 in the process that the ring gear driving mechanism 327 drives the activation furnace 321 to rotate, when the activated carbon falls out of the carbon outlet groove 324, the activated carbon falling to the surface of the retarding plate 325 is retained on the surface of the activated carbon and slides down along the surface of the activated carbon, and the activated carbon cannot directly vertically and downwards fall off, the heating time of the activated carbon at the high-temperature layer accessory at the outer side of the heating cylinder 323 is prolonged, in the process that the retarding plate 325 gradually rotates to the horizontal position, the sliding speed of the activated carbon on the surface of the activated carbon is gradually slowed, so that the retained time of the activated carbon is prolonged, the activated carbon can be fully heated by the high-temperature surface layer at the outer side of the heating cylinder 323, under the condition of the activation furnace 321 with the same length, so that the activated carbon can be sufficiently heated.
In the process, a longer activation furnace 321 is not needed, the detention time of the activated carbon can be prolonged at a low speed by only adding one heating cylinder 323, the operation cost is reduced, and the movement distance of the activated carbon on the surface of the corrugated plate 326 is further prolonged when the activated carbon slides on the surface of the corrugated plate 326.
For example, after the heating cylinder 323 drives the wave plate 326 to rotate to the upper side, the activated carbon at the strip-shaped wave trough of the wave plate 326 falls onto the outer surface of the heating cylinder 323 and slides along the outer surface of the heating cylinder 323, and the high temperature layer on the outer surface of the heating cylinder 323 can heat the activated carbon again, so that the regeneration rate and effect of the activated carbon are improved. Specifically, a plurality of strip-shaped wave crests are convexly arranged on the surface of the wave plate 326, and strip-shaped wave troughs are formed between two adjacent strip-shaped wave crests. For example, in one embodiment, when the heating cylinder 323 drives the retarding plate 325 to turn over from the lower side to the upper side of the heating cylinder 323, the activated carbon remained in the strip-shaped wave troughs of the wave plate 326 can be sprinkled onto the peripheral sidewall of the heating cylinder 323, so as to heat the activated carbon again by the high temperature layer on the outer surface of the heating cylinder 323.
Referring to the attached drawing 1 in the specification, the feeding mechanism 31 includes a lifting machine 311, one side of the lifting machine 311 is provided with a lifting machine bin, the other side is provided with a platform 312, the top of the platform 312 is provided with a storage bin 313, the bottom of the storage bin 313 is communicated with a screw feeder 314, and an output end of the screw feeder 314 is inserted into one end of the activation furnace 321.
The carbonized activated carbon is put into a bin of a lifting machine, the activated carbon is lifted by the lifting machine 311, then the lifting machine 311 enters a storage bin 313, and the activated carbon is conveyed into the heating cylinder 323 by a screw feeder 314.
Referring to fig. 1 of the specification, the tail gas treatment mechanism 33 includes a main passage 331 and a bypass passage 332, the main passage 331 includes a secondary incinerator 3311, a steam exhaust-heat boiler 3312, an induced draft fan 3313, a cyclone 3314, a bag dust collector 3315, a water spray tower 3316 and a chimney 3317 which are connected in sequence by pipes, the secondary incinerator 3311 is communicated with the end of the activation furnace 321; the bypass 332 comprises a second cyclone dust collector and a second bag-type dust collector which are connected in sequence, and the second cyclone dust collector is communicated with the activation furnace 321 through a pipeline.
The main channel 331 is used for treating and filtering tail gas, the smoke exhaust valve is arranged at the side channel 332, the smoke exhaust valve is automatically opened under the condition that the pressure of the secondary incinerator 3311 is too high, pressure is released orderly, production accidents can be avoided, smoke is discharged organically, and the environment is effectively protected.
Referring to the attached figure 1 of the specification, a steam exhaust-heat boiler 3312 is communicated with an activation furnace 321 through a steam pipe, and a spark/flame catcher is arranged at the input end of a bag-type dust remover 3315. The steam exhaust-heat boiler 3312 has saved the flue gas heat transfer that no exhaust-heat boiler leads to and has sprayed required water and power consumption in traditional production mode, and the steam that utilizes the waste heat to produce can also be used for equipment waste heat to dry, the regeneration activation of useless activated carbon, flue gas heating and waste liquid evaporation, has greatly reduced the energy consumption of enterprise to the mars/flame trapper can catch the mars/flame in the tail gas, reduces the probability that the sack cleaner 3315 damaged.
Referring to the attached drawings 2 and 3 in the specification, a round pipe 4 is arranged at a position, adjacent to each speed reducing plate 325, of the heating cylinder 323, the round pipe 4 extends obliquely towards a wave plate 326 of an adjacent speed reducing plate 325, one end of the round pipe 4 is hinged to the outer peripheral surface of the heating cylinder 323, a push rod 5 is inserted into the other end of the round pipe in a sliding manner, one end of the push rod 5 is inserted into the round pipe 4 in a non-slip manner, a gravity shifting roller 6 is fixedly arranged at the other end of the push rod 4, the middle of the gravity shifting roller 6 is vertically connected to the end of the push rod 5, the gravity shifting roller 6 is supported in a strip-shaped wave trough of the wave plate 326 in a sliding manner, and a plurality of gas spray holes are formed in the gravity shifting roller 6.
The longest length of the carrier rod 5 sliding out of the circular tube 4 enables the gravity shifting roller 6 to reach the edge of the outermost end of the wave plate 326, so that the carrier rod 5 can deflect from the outside and smoothly reach the wave plate 326, i.e. the carrier rod 5 is not too long to block the outer end of the wave plate 326. In the rotating process of the heating cylinder 323, the circular tube 4 can be turned over when descending, at the moment, the ejector rod 5 slides out under the action of self gravity, the gravity shifting roller 6 at the end part of the ejector rod 5 reaches the edge of the outermost end of the corrugated plate 326 and moves towards one side of the charcoal outlet groove 324 along the surface of the corrugated plate 326, the gravity shifting roller 6 sequentially passes through the strip-shaped wave trough and the strip-shaped wave crest and gradually moves, and when the activated charcoal is shifted, cleaning gas is sprayed out through the gas spray holes to clean micropores of the activated charcoal, so that the activated charcoal can recover activity. The cleaning gas includes carbon dioxide, carbon monoxide, hydrogen and other gases. In the process of further rotating and descending the wave plate 326, the wave plate 326 rotates from the horizontal state to the process that the outer end of the wave plate 326 is at a lower position, the gravity shifting roller 6 gradually moves towards the outer end of the wave plate 326 through the strip-shaped wave troughs and the strip-shaped wave crests in sequence, and the activated carbon is shifted and cleaning gas is sprayed out at the same time. For example, one end of the top bar 5 can move relatively inside the circular tube 4, and during the rotation of the heating cylinder 323, the top bar 5 can extend and contract relative to the circular tube 4 so that the gravity shifting roller 6 can always tightly support the wave plate 326 until the top bar 5 is separated from the outer side of the wave plate 326 and falls. For example, in one embodiment, the round tube 4, the top rod 5 and the gravity shifting roller 6 are provided with air holes or telescopic air pipes for air transportation.
Referring to the attached fig. 2 and 3 of the specification, a gas barrier member 7 is fixedly connected to the middle of the top rod 5, and the gas barrier member 7 is parallel to the gravity shifting roller 6, for example, parallel to the central axis of the heating cylinder 323. One side of the gas baffle 7, which is far away from the ejector rod 5, extends obliquely towards the wave plate 326, a plurality of flanges 8 are formed on the surface of one side of the gas baffle 7, which is far away from the ejector rod 5, the plurality of flanges 8 are arranged along the length direction of the gas baffle 7, and a needle-shaped shifting piece 9 is movably connected to the bulge of each flange 8, for example, the needle-shaped shifting piece 9 is connected with the flanges 8 in a spherical hinge manner or in a flexible structure manner. Both sides of every needle-like stirring piece 9 all are connected with gas baffle plate 7 through extension spring 10, and the needle-like stirring is equipped with the gas pocket in 9, and a plurality of needle-like stirring pieces 9 are used for stirring the active carbon and spout clearance gas to the active carbon to the micropore of clearance active carbon makes the active carbon resume adsorption performance.
Because the activated carbon discharged from the heating cylinder 323 is heated, the micropore cleaning operation needs to be performed through gas subsequently, when the activated carbon in the heating cylinder 323 is more, before the speed reducing plate 325 rotates to the lower side, the carbon discharging grooves 324 corresponding to the speed reducing plate 325 drop the activated carbon, the activated carbon collides with the gas baffle plate 7 in a large amount, the dead time of the activated carbon can be increased, and the needle-shaped poking piece 9 ejects the cleaning gas at the moment. When the active carbon strikes flange 8 and needle-like piece 9, not only needle-like piece 9 plays the effect of dialling scattered to the active carbon, be favorable to enlarging the gaseous loss scope of spun clearance in needle-like piece 9 in the action of dispersion active carbon, increase the area of contact of active carbon and clearance gas, simultaneously because the striking of active carbon, needle-like piece 9 can take place to reciprocate to deflect, when extension spring 10 is tensile or the compression, all can weaken the impact of active carbon, and improve gaseous clearance effect to the active carbon micropore of clearance.
Referring to the attached drawings 2, 3 and 4 of the specification, a plurality of material guiding assemblies are arranged inside the heating cylinder 323, the material guiding assemblies correspond to the charcoal outlet grooves 324 one by one, each material guiding assembly comprises two arc-shaped heat increasing wing plates 11, the two heat increasing wing plates 11 are fixedly connected to the inner wall of the heating cylinder 323 and are respectively located on two opposite sides of the corresponding charcoal outlet groove 324, the distance between the two heat increasing wing plates 11 of each material guiding assembly gradually decreases along the direction towards the central axis of the heating cylinder 323, a plurality of through holes 12 are formed in the surfaces of the heat increasing wing plates 11, a drying cavity is formed between the two heat increasing wing plates 11, and the activated charcoal at the bottom of the drying cavity is looser than the activated charcoal at the top and can easily fall out. The through hole 12 is communicated with the drying cavity, and the through hole 12 faces the charcoal outlet groove 324. One side of the heat increasing wing plate 11 departing from the drying cavity is formed with a convex arc surface, when one heat increasing wing plate 11 located at the front side in the rotating direction of the heating cylinder 323 in each material guiding assembly is driven to the upper side by the heating cylinder 323 (namely, the side upper side of the central axis of the heating cylinder 323), the convex arc surface on the heat increasing wing plate is used for guiding the active carbon located at the outer side of the drying cavity to slide, and part of the active carbon falls into the drying cavity of one material guiding assembly below and then falls out from the corresponding carbon outlet groove 324.
Specifically, when the amount of the activated carbon is large, the gap between the two heat increasing wing plates 11 allows the activated carbon to enter and reach the carbon outlet groove 324, and another part of the activated carbon moves to the bottom ends of the heat increasing wing plates 11 and is located outside the drying cavity 324, and the part of the activated carbon cannot reach the carbon outlet groove 324 at the first time, and when the carbon outlet groove 324 rotates along the heating cylinder 323 to reach the upper part from the bottom, the activated carbon slides down along one of the heat increasing wing plates 11 and falls into between the two heat increasing wing plates 11 below, and the activated carbon falls out of the carbon outlet groove 324 in the subsequent rotation process. For example, the activated carbon may be subjected to a second gas cleaning process while entering the inner wall of the activation furnace 321, so that the activated carbon is again subjected to thorough activity restoration.
The invention also provides a powdered activated carbon regeneration method by adopting the powdered activated carbon regeneration system, which comprises the following steps:
the method comprises the following steps: putting the used activated carbon into a drying tank 1 for drying, removing volatile components on the activated carbon, and taking out the dried activated carbon and transferring the dried activated carbon to a carbonization area;
step two: putting the dried active carbon in the step one into a carbonization tank 2, and carbonizing under vacuum or inert atmosphere;
step three: putting the carbonized activated carbon in the step two into a feeding mechanism 31, feeding the carbonized activated carbon into an activation furnace 321 through the feeding mechanism 31, and conveying the carbonized activated carbon into the activation furnace 321 through a screw feeder 314;
step four: the gear ring driving mechanism 327 drives the activation furnace 321 to rotate, the heating cylinder 323 rotates along with the activation furnace 321, when the activated carbon falls out of the carbon outlet groove 324, the activated carbon falling to the surface of the retarding plate 325 is retained on the surface of the retarding plate, and gradually slides off the surface of the retarding plate 325, and in the process that the retarding plate 325 gradually rotates to the horizontal position, the sliding speed of the activated carbon on the surface of the retarding plate gradually slows down, so that the retention heating time of the activated carbon is prolonged;
step five: in the rotation process of the heating cylinder 323, the ejector rod 5 in the circular tube 4 slides out, the gravity shifting roller 6 at the end part of the ejector rod 5 reaches the outermost edge of the corrugated plate 326 and moves towards one side of the charcoal outlet groove 324 along the surface of the corrugated plate 326, the gravity shifting roller 6 sequentially passes through the strip-shaped wave trough and the strip-shaped wave crest and gradually moves, and when the activated carbon is shifted, cleaning gas is sprayed out through the gas spray holes to clean micropores of the activated carbon, so that the activated carbon can recover activity;
step six: in the process of further rotating and descending the wave plate 326, the wave plate 326 rotates from the horizontal state to the process that the outer end of the wave plate 326 is at a lower position, the gravity shifting roller 6 moves towards the outer end of the wave plate 326 through the strip-shaped wave troughs and the strip-shaped wave crests in sequence, and the activated carbon is shifted and cleaning gas is sprayed out at the same time.
The powdered activated carbon regeneration method has the same beneficial effects as the powdered activated carbon regeneration system.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a powdered activated carbon regeneration system, includes drying cylinder (1), carbomorphism jar (2) and activation equipment (3), its characterized in that: the activation equipment (3) comprises a feeding mechanism (31), a heating mechanism (32) and a tail gas treatment mechanism (33) which are sequentially arranged, wherein the heating mechanism (32) comprises a cylindrical activation furnace (321), the activation furnace (321) is obliquely arranged relative to the horizontal plane, a concrete table (322) is arranged below the middle part of the activation furnace (321), a gear ring driving mechanism (327) is arranged on the concrete table (322), the gear ring driving mechanism (327) is sleeved outside the middle part of the activation furnace (321), a heating cylinder (323) is coaxially arranged inside the activation furnace (321), the outer wall of the end part of the heating cylinder (323) is fixedly connected onto the inner wall of the activation furnace (321), the peripheral surface of the heating cylinder (323) is provided with a plurality of strip-shaped carbon outlet grooves (324) in a penetrating way and is fixedly provided with a plurality of retarding plates (325), the positions of the plurality of retarding plates (325) and the plurality of carbon outlet grooves (324) are respectively in one-to-one correspondence, so that the projection of each carbon outlet groove (324) radially outwards falls onto the corresponding retarding plate (325) along the heating cylinder (323), the retarding plate (325) is obliquely arranged relative to the circumferential surface of the heating cylinder (323), the surface of the retarding plate (325) is tangent to the circumferential surface of the heating cylinder (323), the surface of one side, facing the charcoal outlet groove (324), of the retarding plate (325) is covered with the wave plate (326), and when the activation furnace (321) drives the heating cylinder (323) to rotate, the activated carbon separated from the charcoal outlet groove (324) can fall onto the retarding plate (325) and gradually fall onto the inner wall of the activation furnace (321) along the wave plate (326).
2. The powdered activated carbon regeneration system of claim 1, wherein: the surface of the wave plate (326) is convexly provided with a plurality of strip wave crests, strip wave troughs are formed between every two adjacent strip wave crests, when the heating cylinder (323) drives the speed reducing plate (325) to turn over from the lower part to the upper part of the side part of the heating cylinder (323), the residual activated carbon in the strip wave troughs of the wave plate (326) can be sprinkled onto the peripheral side wall of the heating cylinder (323), and the activated carbon is heated by utilizing the high-temperature surface layer on the outer side of the heating cylinder (323).
3. The powdered activated carbon regeneration system of claim 2, wherein: the feeding mechanism (31) comprises a lifting machine (311), a lifting machine bin is arranged on one side of the lifting machine (311), a platform (312) is arranged on the other side of the lifting machine (311), a storage bin (313) is installed at the top of the platform (312), a spiral feeder (314) is communicated with the bottom of the storage bin (313), and the output end of the spiral feeder (314) is inserted into one end of the activation furnace (321).
4. The powdered activated carbon regeneration system according to claim 3, wherein: the tail gas treatment mechanism (33) comprises a main channel (331) and a side channel (332), the main channel (331) comprises a secondary incinerator (3311), a steam waste heat boiler (3312), an induced draft fan (3313), a cyclone dust collector (3314), a bag-type dust collector (3315), a water spray tower (3316) and a chimney (3317) which are sequentially connected through pipelines, and the secondary incinerator (3311) is communicated with the tail end of the activation furnace (321); the bypass passage (332) comprises a second cyclone dust collector and a second bag-type dust collector which are sequentially connected, and the second cyclone dust collector is communicated with the activation furnace (321) through a pipeline.
5. The powdered activated carbon regeneration system of claim 4, wherein: the heating cylinder (323) is provided with a round pipe fitting (4) adjacent to each speed reducing plate (325), the round pipe fitting (4) extends towards the wave plate (326) of an adjacent speed reducing plate (325) in an inclined mode, one end of the round pipe fitting (4) is hinged to the outer peripheral surface of the heating cylinder (323), a push rod (5) is inserted into the other end of the round pipe fitting in a sliding mode, one end of the push rod (5) is inserted into the round pipe fitting (4) in a non-falling mode, a gravity shifting roller (6) is fixedly arranged at the other end of the round pipe fitting, the middle of the gravity shifting roller (6) is vertically connected to the end portion of the push rod (5), the gravity shifting roller (6) is supported in a strip-shaped wave trough of the wave plate (326) in a sliding mode, and a plurality of gas spray holes are formed in the gravity shifting roller (6).
6. The powdered activated carbon regeneration system of claim 5, wherein: ejector pin (5) middle part fixedly connected with keeps off gas plate spare (7), keep off gas plate spare (7) relative gravity and dial roller (6) parallel, keep off one side that gas plate spare (7) deviates from ejector pin (5) and extend towards wave board (326) slope, and keep off one side surface that gas plate spare (7) back to ejector pin (5) is formed with a plurality of flanges (8), a plurality of flanges (8) are arranged along the length direction of keeping off gas plate spare (7), the protruding department swing joint of every flange (8) has needle-like stirring piece (9), the both sides of every needle-like stirring piece (9) all are connected with gas plate spare (7) through extension spring (10), be provided with the gas pocket in needle-like stirring piece (9), a plurality of needle-like stirring pieces (9) are used for stirring the active carbon and to the active carbon blowout gas, in order to clear up the micropore of active carbon, make the active carbon resume adsorption performance.
7. The powdered activated carbon regeneration system of claim 6, wherein: heating cylinder (323) inside is provided with a plurality of material subassemblies that draw, a plurality of material subassemblies that draw and a plurality of charcoal groove (324) one-to-one go out, every draws the material subassembly and includes two curved heat wing board (11), two equal fixed connection of heat wing board (11) are in heating cylinder (323) inner wall and lie in the relative both sides of the charcoal groove (324) that correspond respectively, the interval between two heat wing board (11) of every material subassembly that draws diminishes gradually along the direction towards heating cylinder (323) axis, a plurality of through-holes (12) have been seted up on heat wing board (11) surface, be formed with the stoving chamber between two heat wing board (11).
8. The powdered activated carbon regeneration system according to claim 7, wherein: one side of each heat increasing wing plate (11) departing from the drying cavity is provided with a convex cambered surface, and when one heat increasing wing plate (11) in the front side of the heating cylinder (323) in the rotating direction of each material guiding assembly is driven to the upper side by the heating cylinder (323), the convex cambered surface on the heat increasing wing plate is used for guiding the activated carbon outside the drying cavity to slide down.
9. A powdered activated carbon regeneration method using the powdered activated carbon regeneration system according to claim 6, characterized in that: the method comprises the following steps:
the method comprises the following steps: putting the used activated carbon into a drying tank (1) for drying, removing volatile components on the activated carbon, and taking out the dried activated carbon and transferring the dried activated carbon to a carbonization area;
step two: putting the dried active carbon in the step one into a carbonization tank (2), and carbonizing under the vacuum or inert atmosphere;
step three: putting the carbonized active carbon in the step two into a feeding mechanism (31), feeding the carbonized active carbon into an activation furnace (321) through the feeding mechanism (31), and conveying the carbonized active carbon into the activation furnace (321) through a screw feeder (314);
step four: the gear ring driving mechanism (327) drives the activation furnace (321) to rotate, the heating cylinder (323) rotates along with the activation furnace (321), when the activated carbon falls out of the carbon outlet groove (324), the activated carbon falling to the surface of the speed buffer plate (325) is retained on the surface of the speed buffer plate and gradually slides along the surface of the wave plate (326), and in the process that the speed buffer plate (325) gradually rotates to the horizontal position, the sliding speed of the activated carbon on the surface of the speed buffer plate (325) is gradually reduced, so that the retention heating time of the activated carbon is prolonged;
step five: in the rotating process of the heating cylinder (323), the ejector rod (5) in the round pipe fitting (4) slides out, the gravity shifting roller (6) at the end part of the ejector rod (5) reaches the outermost edge of the wave plate (326) and moves towards one side out of the carbon groove (324) along the surface of the wave plate (326), the gravity shifting roller (6) sequentially passes through the strip-shaped wave trough and the strip-shaped wave crest and gradually moves, and when the activated carbon is shifted, cleaning gas is sprayed out through the gas spray holes to clean micropores of the activated carbon, so that the activated carbon can recover the activity;
step six: in the process that the wave plate (326) further rotates and descends, the gravity shifting roller (6) moves towards the outer end of the wave plate (326) through the strip-shaped wave troughs and the strip-shaped wave crests in sequence in the process that the wave plate (326) rotates from the horizontal state to the outer end of the wave plate at the lower position, the activated carbon is shifted, and meanwhile cleaning gas is sprayed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057270.2A CN113620292B (en) | 2021-09-09 | 2021-09-09 | Powdered activated carbon regeneration system and regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057270.2A CN113620292B (en) | 2021-09-09 | 2021-09-09 | Powdered activated carbon regeneration system and regeneration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113620292A true CN113620292A (en) | 2021-11-09 |
| CN113620292B CN113620292B (en) | 2022-04-15 |
Family
ID=78389614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111057270.2A Active CN113620292B (en) | 2021-09-09 | 2021-09-09 | Powdered activated carbon regeneration system and regeneration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113620292B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0156695A1 (en) * | 1984-02-28 | 1985-10-02 | KREBS & CO. S.A. Société anonyme dite: | Process and apparatus for the regeneration of powdery active carbon |
| CN1077934A (en) * | 1992-04-23 | 1993-11-03 | 项缙农 | The activation furnace of producing activated carbon by chemical method and working method |
| JP5691118B1 (en) * | 2014-07-15 | 2015-04-01 | 株式会社エム・イ−・ティ− | Activated carbon production apparatus and activated carbon production method |
| CN105540581A (en) * | 2016-02-02 | 2016-05-04 | 江苏优华达环保材料科技有限公司 | Internal radiation heat type activation furnace |
| CN106430191A (en) * | 2016-10-14 | 2017-02-22 | 张西进 | Active carbon activation furnace and active carbon production method |
| CN109354019A (en) * | 2018-12-13 | 2019-02-19 | 贵州森环活性炭有限公司 | A kind of raising Activated Carbon Production efficiency vertical activation furnace |
| CN109694069A (en) * | 2019-02-21 | 2019-04-30 | 浙江省林业科学研究院 | Physics charcoal cooperates with preparation process and its steaming process external-heat to activate converter with phosphoric acid charcoal |
| CN110921662A (en) * | 2019-11-15 | 2020-03-27 | 太原理工大学 | Rotary activation furnace for preparing high-activity coal-based activated carbon for desulfurization and denitrification |
| CN111807363A (en) * | 2019-04-11 | 2020-10-23 | 湖南万容科技股份有限公司 | Activated carbon production method and production device |
| CN213286886U (en) * | 2020-09-01 | 2021-05-28 | 福泉环保城发展有限公司 | Activated carbon activation and regeneration device |
| CN213356970U (en) * | 2020-09-15 | 2021-06-04 | 宁夏恒基环保科技有限公司 | Carbonization material production system based on DCS control |
-
2021
- 2021-09-09 CN CN202111057270.2A patent/CN113620292B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0156695A1 (en) * | 1984-02-28 | 1985-10-02 | KREBS & CO. S.A. Société anonyme dite: | Process and apparatus for the regeneration of powdery active carbon |
| CN1077934A (en) * | 1992-04-23 | 1993-11-03 | 项缙农 | The activation furnace of producing activated carbon by chemical method and working method |
| JP5691118B1 (en) * | 2014-07-15 | 2015-04-01 | 株式会社エム・イ−・ティ− | Activated carbon production apparatus and activated carbon production method |
| CN105540581A (en) * | 2016-02-02 | 2016-05-04 | 江苏优华达环保材料科技有限公司 | Internal radiation heat type activation furnace |
| CN106430191A (en) * | 2016-10-14 | 2017-02-22 | 张西进 | Active carbon activation furnace and active carbon production method |
| CN109354019A (en) * | 2018-12-13 | 2019-02-19 | 贵州森环活性炭有限公司 | A kind of raising Activated Carbon Production efficiency vertical activation furnace |
| CN109694069A (en) * | 2019-02-21 | 2019-04-30 | 浙江省林业科学研究院 | Physics charcoal cooperates with preparation process and its steaming process external-heat to activate converter with phosphoric acid charcoal |
| CN111807363A (en) * | 2019-04-11 | 2020-10-23 | 湖南万容科技股份有限公司 | Activated carbon production method and production device |
| CN110921662A (en) * | 2019-11-15 | 2020-03-27 | 太原理工大学 | Rotary activation furnace for preparing high-activity coal-based activated carbon for desulfurization and denitrification |
| CN213286886U (en) * | 2020-09-01 | 2021-05-28 | 福泉环保城发展有限公司 | Activated carbon activation and regeneration device |
| CN213356970U (en) * | 2020-09-15 | 2021-06-04 | 宁夏恒基环保科技有限公司 | Carbonization material production system based on DCS control |
Non-Patent Citations (1)
| Title |
|---|
| 赵荣善等: "外热式回转炉及其工艺在活性炭生产中的应用", 《洁净煤技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113620292B (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101112669A (en) | Multilevel purifier for disacidifying using dry and wet method and for removing dust by using cloth bag | |
| CN111609406A (en) | Method for treating domestic garbage | |
| CN207667379U (en) | It is suitble to the activated coke system of garbage-incineration smoke purifying | |
| CN101822942B (en) | Wet purification method for dioxin and heavy metals in solid waste incineration gas | |
| CN109945211B (en) | Burning treatment method and system for semi-coke pyrolysis waste gas and waste liquid | |
| CN111957197A (en) | Efficient flue gas deacidification, dioxin removal and waste heat utilization cooperative system and process | |
| CN206064141U (en) | A kind of coal-fired flue-gas treatment and purification device | |
| CN113620292B (en) | Powdered activated carbon regeneration system and regeneration method | |
| CN206911075U (en) | A kind of chemical emission exhaust gas cleaner | |
| CN210560258U (en) | Ethylene device burnt gas resource utilization and deep purification device | |
| CN111623354A (en) | Method for treating domestic garbage by utilizing photobiology and microwave plasma technology | |
| CN104107602A (en) | On-line regeneration method of deduster filter core used in high-temperature inflammable dust environment | |
| CN207951096U (en) | Incineration firing device for purifying and treating tail gas | |
| CN111298615A (en) | Leading SDS desulphurization unit of msw incineration flue gas | |
| CN105805752A (en) | Waste incinerator provided with heat energy recovery device | |
| CN213746793U (en) | Catalytic combustion device for organic waste gas treatment | |
| CN2507548Y (en) | Venturi and active carbon filter combined three-stage high-efficiency dusting purifying device | |
| CN205606565U (en) | Waste incinerator with heat recovery unit | |
| CN212005719U (en) | RTO oxidation furnace for exhaust-gas treatment | |
| CN209423274U (en) | A kind of organic waste gas treatment system | |
| CN114191959A (en) | Hazardous waste burns flue gas clean system based on catalyst ceramic fiber filter tube | |
| CN212924903U (en) | Wood tar and wood vinegar separating, recovering and burning system | |
| CN111939736A (en) | Portable waste incineration flue gas purification shelter | |
| CN212746480U (en) | System for treating household garbage | |
| CN110848699A (en) | Garbage pyrolysis incineration system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |