CN111503641A - External heating atmosphere drying pyrolysis device - Google Patents
External heating atmosphere drying pyrolysis device Download PDFInfo
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- CN111503641A CN111503641A CN202010333101.6A CN202010333101A CN111503641A CN 111503641 A CN111503641 A CN 111503641A CN 202010333101 A CN202010333101 A CN 202010333101A CN 111503641 A CN111503641 A CN 111503641A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/10—Combinations of devices covered by groups B01D45/00, B01D46/00 and B01D47/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/10—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
- F26B23/06—Heating arrangements using electric heating resistance heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
- F26B25/007—Dust filtering; Exhaust dust filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/60—Intercepting solids using settling/precipitation chambers
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- Sustainable Development (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Drying Of Solid Materials (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an external heating atmosphere drying pyrolysis device, which comprises: the device comprises a feeding system, a pyrolysis drying barrel body used for pyrolysis and conveying materials when rotating, an external heating device used for externally heating the pyrolysis drying barrel body, a power device used for driving the pyrolysis drying barrel body to rotate, a discharging system, a cooling system used for cooling the materials pyrolyzed by the pyrolysis drying barrel body, a sealing device, an atmosphere control system, a dust collecting system, an electric control system and an operation platform. When the drying pyrolysis cylinder pyrolyzes the material, the atmosphere control system is started, and the atmosphere control system fills inert gas into the pyrolysis drying cylinder to stabilize the pyrolysis material and obtain the required product. Because all set up sealing device at the feed end of pyrolysis drying barrel and discharge system's feed end, make material transfer process guarantee the leakproofness, prevent that other gas from getting into. The gas filled in the drying pyrolysis cylinder is controlled by the atmosphere control system, so that the controllability of the atmosphere can be realized.
Description
Technical Field
The invention relates to the technical field of material preparation kilns, in particular to an external heating atmosphere drying pyrolysis device.
Background
Crushing waste lithium batteries to obtain positive and negative battery powder and graphite concentrate powder, wherein the main components of the positive and negative battery powder are nickel-cobalt-manganese-lithium oxide, graphite, carbonic ester, PVDF and other organic matters, and the main component of the graphite concentrate powder is graphite; wherein, the graphite is easy to oxidize under the oxygen atmosphere when the temperature exceeds 400 ℃; the anode and cathode battery powder is easy to burn and release heat under the condition of high oxygen concentration, so that the pyrolysis temperature is not controllable, and meanwhile, the anode and cathode powder is sintered and is not beneficial to subsequent leaching. Therefore, in the pyrolysis or drying of the above two materials, it is necessary to operate under a protective atmosphere to prevent the materials from being oxidized. The traditional equipment has the defects of poor sealing performance, uncontrollable atmosphere, unstable product obtained by material treatment and the like.
In summary, how to provide a drying pyrolysis device with strong sealing performance and controllable atmosphere to obtain a stable product is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides an external heating atmosphere drying pyrolysis apparatus with strong sealing performance and controllable atmosphere.
In order to achieve the above purpose, the invention provides the following technical scheme:
an externally heated atmosphere dry pyrolysis apparatus comprising: the device comprises a feeding system, a pyrolysis drying cylinder body, an external heating device, a power device, a discharging system, a cooling system, a first sealing device, a second sealing device, an atmosphere control system, a dust collecting system, an electric control system and an operation platform, wherein the pyrolysis drying cylinder body is used for pyrolyzing and conveying materials during rotation;
the feeding system is connected with the feeding end of the pyrolysis drying cylinder, the external heating device is arranged outside the pyrolysis drying cylinder, the discharging system is arranged at the discharging end of the pyrolysis drying cylinder, the cooling system is arranged between the discharging end of the pyrolysis drying cylinder and the discharging system, the first sealing device is arranged at the feeding end of the pyrolysis drying cylinder, the second sealing device is arranged at the feeding end of the discharging system, the atmosphere control system is respectively communicated with the pyrolysis drying cylinder and the internal gas of the discharging system, the dust collection system is arranged between the discharging end of the feeding system and the feeding end of the pyrolysis drying device, and the feeding system, the dust collection system, the power device, the cooling system, the discharging system and the atmosphere control system are all in signal connection with the electric control system, the feeding system, the dust collecting system, the pyrolysis drying cylinder, the discharging system and the atmosphere control system are all arranged on the operating platform, and the feeding end of the pyrolysis drying cylinder is higher than the discharging end of the pyrolysis drying cylinder.
Preferably, the pyrolysis drying cylinder comprises a cylinder body, a material turning plate for turning the material is arranged on the inner wall of the cylinder body, a rapping mechanism is arranged on the periphery of the cylinder body, and a plurality of water retaining rings are arranged on the periphery of the cylinder body.
Preferably, outer heating device includes the shell, be equipped with the heat preservation on the shell inner wall, the inboard of heat preservation is equipped with the elema, the outside of shell is equipped with and is used for controlling the accuse temperature thermocouple of the inside temperature of shell, accuse temperature thermocouple with electrical system signal connection.
Preferably, the power device comprises a variable frequency motor, an output shaft of the variable frequency motor is connected to a speed reducer, a driving sprocket is arranged on an output shaft of the speed reducer, a driven sprocket is arranged outside the pyrolysis drying cylinder, and the driving sprocket is in transmission connection with the driven sprocket through a chain.
Preferably, discharge system includes the feed cylinder, the side of feed cylinder is equipped with the feed inlet of being connected with the dry barrel of pyrolysis, the bottom of feed cylinder is equipped with the discharge end, the discharge end of feed cylinder is equipped with the butterfly valve, the side of feed cylinder is equipped with and is used for connecting the intake pipe of atmosphere control device's outlet duct.
Preferably, the atmosphere control system comprises a gas cylinder, and an electromagnetic valve is arranged between the gas outlet pipe of the gas cylinder and the gas inlet pipe of the charging barrel.
Preferably, the cooling system is a water cooling system, the water cooling system comprises a cooling water tank, a water pump and a water cooling cavity sleeved outside the transmission cylinder between the pyrolysis drying cylinder and the discharge system, the top and the side of the water cooling cavity are provided with a plurality of atomizing nozzles, the bottom of the water cooling cavity is provided with a water outlet nozzle, the inner wall of the water cooling cavity is provided with a lining plate, and the water pump is arranged outside the cooling water tank.
Preferably, the dust collecting system comprises a settling chamber, a cloth bag dust collecting device, a spray tower and a fan, the settling chamber is arranged between the feeding system and the pyrolysis drying cylinder, the first sealing device is arranged between the settling chamber and the feeding end of the pyrolysis drying cylinder, the cloth bag dust collecting device is connected to the settling chamber, the spray tower is connected to the cloth bag dust collecting device, the fan is connected to the spray tower, and the fan is further connected to a chimney.
Preferably, the first sealing device comprises a first high-temperature-resistant sealing ring and a first sealing valve, and the second sealing device comprises a second high-temperature-resistant sealing ring and a second sealing valve.
The invention provides an external heating atmosphere drying pyrolysis device, which comprises: the device comprises a feeding system, a pyrolysis drying cylinder body, an external heating device, a power device, a discharging system, a cooling system, a sealing device, an atmosphere control system, a dust collecting system, an electric control system and an operating platform, wherein the pyrolysis drying cylinder body is used for pyrolyzing and conveying materials during rotation; the feeding system is connected with the feeding end of the pyrolysis drying barrel, the external heating device is arranged outside the pyrolysis drying barrel, the discharging system is arranged at the discharging end of the pyrolysis drying barrel, the cooling system is arranged between the discharging end of the pyrolysis drying barrel and the discharging system, the sealing devices are respectively arranged at the feeding end of the pyrolysis drying barrel and the feeding end of the discharging system, the atmosphere control system is respectively communicated with the pyrolysis drying barrel and the internal gas of the discharging system, the dust collecting system is arranged between the discharging end of the feeding system and the feeding end of the pyrolysis drying device, the feeding system, the dust collecting system, the power device, the cooling system and the discharging system, the atmosphere control system is in signal connection with the electric control system, the feeding system, the dust collecting system, the pyrolysis drying cylinder, the discharging system and the atmosphere control system are all arranged on the operation platform, and the feeding end of the pyrolysis drying cylinder is higher than the discharging end of the pyrolysis drying cylinder.
Through operation electrical system, the material is got into by charge-in system, go into the pyrolysis drying barrel after dust collecting system's dust removal, start power device, power device drives the rotation of pyrolysis drying barrel, because the feed end of pyrolysis drying barrel is higher than the discharge end of pyrolysis drying barrel, under the effect of gravity, the material can be followed the feed end motion to the discharge end of pyrolysis drying barrel, start external heating device, utilize the heat-conduction of pyrolysis drying barrel to carry out the pyrolysis with heat transfer to the inside pyrolysis drying barrel of pyrolysis drying barrel, the material after the pyrolysis is discharged by the discharge end of pyrolysis drying barrel, start cooling system, cool off pyrolysis drying barrel exhaust material, get into discharge system after the cooling and discharge. In the process, when the drying pyrolysis cylinder pyrolyzes the material, the atmosphere control system is started, and the atmosphere control system fills inert gas into the pyrolysis drying cylinder to stabilize the pyrolysis material and obtain the required product.
Because all set up sealing device at the feed end of pyrolysis drying barrel and discharge system's feed end, make material transfer process guarantee the leakproofness, prevent that other gas from getting into. The gas filled in the drying pyrolysis cylinder is controlled by the atmosphere control system to realize the controllability of the atmosphere, and compared with the prior art, the product obtained by the externally-heated atmosphere drying pyrolysis device after pyrolysis of materials is high in purity and strong in stability.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic view of an externally heated atmosphere dry pyrolysis apparatus provided in accordance with the present invention;
FIG. 2 is a schematic view of a shovelling plate and a rapping mechanism arranged outside the pyrolysis drying cylinder provided by the invention;
FIG. 3 is a schematic view of an external heating device provided in the present invention;
FIG. 4 is a schematic view of a power plant provided by the present invention;
FIG. 5 is a schematic view of a discharge system provided by the present invention;
FIG. 6 is a schematic view of an atmosphere control system provided by the present invention;
FIG. 7 is a schematic view of a cooling water tank provided by the present invention;
fig. 8 is a schematic view of a dust collecting system provided by the present invention.
In FIGS. 1-8:
1-feeding system, 2-primary settling chamber, 3-pyrolysis drying cylinder, 4-external heating device, 5-power device, 6-discharging system, 7-cooling system, 8-operation platform, 9-electric control system, 10-level gauge, 11-thermocouple, 12-water cooling cavity, 13-air inlet pipe, 14-water pump, 15-shoveling plate, 16-water retaining ring, 17-rapping mechanism, 18-heat insulating layer, 19-silicon carbon rod, 20-sprocket protective cover, 21-driven sprocket, 22-driving sprocket, 23-charging barrel, 24-butterfly valve, 25-air inlet hose, 26-electromagnetic valve, 27-air cylinder, 28-water filling port, 29-water outlet, 30-backwater ball valve, 31-chimney, etc, 32-fan, 33-spray tower, 34-pipeline, 35-cloth bag dust collection and 36-secondary settling chamber.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide an external heating atmosphere drying pyrolysis device with strong sealing performance and controllable atmosphere.
Referring to fig. 1-8, fig. 1 is a schematic view of an external heating atmosphere drying pyrolysis apparatus provided in the present invention; FIG. 2 is a schematic view of a shovelling plate and a rapping mechanism arranged outside the pyrolysis drying cylinder provided by the invention; FIG. 3 is a schematic view of an external heating device provided in the present invention; FIG. 4 is a schematic view of a power plant provided by the present invention; FIG. 5 is a schematic view of a discharge system provided by the present invention; FIG. 6 is a schematic view of an atmosphere control system provided by the present invention; FIG. 7 is a schematic view of a cooling water tank provided by the present invention; fig. 8 is a schematic view of a dust collecting system provided by the present invention.
An externally heated atmosphere dry pyrolysis apparatus comprising: the device comprises a feeding system 1, a pyrolysis drying cylinder 3 used for pyrolysis and conveying materials during rotation, an external heating device 4 used for externally heating the pyrolysis drying cylinder 3, a power device 5 used for driving the pyrolysis drying cylinder 3 to rotate, a discharging system 6, a cooling system 7 used for cooling the materials pyrolyzed by the pyrolysis drying cylinder 3, a first sealing device, a second sealing device, an atmosphere control system used for filling inert gas into the pyrolysis drying cylinder 3, a dust collecting system, an electric control system 9 and an operation platform 8;
the feeding system 1 is connected with the feeding end of the pyrolysis drying cylinder 3, the external heating device 4 is arranged outside the pyrolysis drying cylinder 3, the discharging system 6 is arranged at the discharging end of the pyrolysis drying cylinder 3, the cooling system 7 is arranged between the discharging end of the pyrolysis drying cylinder 3 and the discharging system 6, the first sealing device is arranged at the feeding end of the pyrolysis drying cylinder 3, the second sealing device is arranged at the feeding end of the discharging system 6, the atmosphere control system is respectively communicated with the inside gas of the pyrolysis drying cylinder 3 and the inside gas of the discharging system 6, the dust collecting system is arranged between the discharging end of the feeding system 1 and the feeding end of the pyrolysis drying device, the feeding system 1, the dust collecting system, the power device 5, the cooling system 7, the discharging system 6 and the atmosphere control system are in signal connection with the electric control system 9, the feeding system 1, the dust collecting system, the pyrolysis drying cylinder 3, the discharging system 6 and the atmosphere control system are, the feeding end of the pyrolysis drying cylinder 3 is higher than the discharging end of the pyrolysis drying cylinder 3.
It should be noted that the feeding device may be a vacuum feeding system 1, and the vacuum feeding system 1 is composed of a vacuum feeding machine, a bin with a level gauge 10, an electric valve, a screw feeder, and the like, and the feeding of the vacuum feeding machine is controlled by the signal feedback of the level gauge 10, and then the feeding speed and the feeding amount are controlled by adjusting the feeding speed of the screw feeder. The vacuum feeding can prevent dust pollution.
The electric control system 9 comprises a P L C, an electromagnetic relay, a time relay, a frequency converter, a level indicator 10, a thermocouple 11 and the like, and the P L C automatically controls the feeding of the feeding device, the heating of the external heating device 4, the cooling of the cooling system 7, the air intake of the atmosphere control system and the like according to the information fed back by the sensors.
The thermal pyrolysis drying cylinder 3 can be provided with a certain inclination angle, so that the material transfer is facilitated. A furnace body inclination angle adjusting system can be arranged on the operating platform 8 and is in signal connection with an electric control system 9, and the furnace body inclination angle adjusting system can adjust the inclination angle of the rotary kiln within the range of 3-5 degrees.
The operation platform 8 mainly comprises a small platform (with adjustable angle) and a large platform. The small platform is formed by No. 22 channel steel and is mainly used for supporting the pyrolysis drying cylinder 3 and an auxiliary system. The tail part is provided with a pair of hinges, the inclination angle of the cylinder body can be adjusted by a hydraulic jack, and the front part is provided with two lifting lugs and can also be adjusted by a travelling crane. The large platform is used for supporting the whole system and operating and overhauling and mainly comprises 16# I-steel and 16# channel steel.
Through operation electrical system 9, the material is got into by feed system 1, go into in the dry barrel of pyrolysis 3 after dust collecting system's dust removal, start power device 5, power device 5 drives the dry barrel of pyrolysis 3 and rotates, because the feed end of the dry barrel of pyrolysis 3 is higher than the discharge end of the dry barrel of pyrolysis 3, under the effect of gravity, the material can be followed the feed end of the dry barrel of pyrolysis 3 and moved to the discharge end, start outer heating device 4, utilize the heat-conduction of the dry barrel of pyrolysis 3 to transmit heat to the dry barrel of pyrolysis 3 inside to carry out the pyrolysis to the material, the material after the pyrolysis is discharged by the discharge end of the dry barrel of pyrolysis 3, start cooling system 7, cool off the dry barrel of pyrolysis 3 exhaust material, get into discharge system 6 after the cooling and discharge. In the process, when the drying pyrolysis cylinder pyrolyzes the material, the atmosphere control system is started, and the atmosphere control system fills inert gas into the pyrolysis drying cylinder 3 to stabilize the pyrolysis material and obtain the required product.
Because the feed end at pyrolysis drying barrel 3 is equipped with first sealing device, all sets up second sealing device at the feed end of discharge system 6, makes the material transfer process guarantee the leakproofness, prevents that other gas from getting into. The gas filled in the drying pyrolysis cylinder is controlled by the atmosphere control system to realize the controllability of the atmosphere, and compared with the prior art, the product obtained by the externally-heated atmosphere drying pyrolysis device after pyrolysis of materials is high in purity and strong in stability.
On the basis of the above embodiment, as a further preferred, the pyrolysis drying cylinder 3 comprises a cylinder body, the inner wall of the cylinder body is provided with a shoveling plate 15 for shoveling materials, the periphery of the cylinder body is provided with a rapping mechanism 17, and the periphery of the cylinder body is provided with a plurality of water retaining rings 16.
The cylinder is centrifugally cast by 316L materials, the inner wall of the cylinder is provided with a shoveling plate for turning materials and increasing the heat exchange area, the materials move forwards along with the rotation of the cylinder, the shoveling plate turns the materials, so that the contact area of the materials is increased, the cracking and drying of the materials are accelerated, and the vibrating mechanism 17 is arranged at the periphery of the cylinder to prevent the powder from being adhered and accumulated.
On the basis of the above embodiment, as a further preferred option, the external heating device 4 includes a housing, the inner wall of the housing is provided with a heat insulating layer 18, the inner side of the heat insulating layer 18 is provided with a silicon carbide rod 19, the outside of the housing is provided with a temperature control thermocouple 11 for controlling the temperature inside the housing, and the temperature control thermocouple 11 is in signal connection with the electric control system 9.
The upper cover is detachably mounted on the upper portion of the housing, and the upper cover is mounted after the upper cover is detached and the cylinder is mounted inside the housing. The inner wall is provided with a heat preservation layer 18 which can reduce heat loss and improve heat efficiency, and the silicon carbide rod 19 is an electric heating element which is matched with the temperature control thermocouple 11 for use, so that accurate constant temperature can be obtained, and the temperature can be automatically adjusted according to the requirements of the production process. The silicon carbide rod 19 is convenient to heat, safe and reliable.
On the basis of the above embodiment, as a further preferable mode, the power device 5 includes a variable frequency motor, an output shaft of the variable frequency motor is connected to a speed reducer, a driving sprocket 22 is disposed on an output shaft of the speed reducer, a driven sprocket 21 is disposed outside the pyrolysis drying cylinder 3, and the driving sprocket 22 and the driven sprocket 21 are connected by chain transmission.
It should be noted that, when the pyrolysis drying cylinder 3 is driven, the variable frequency motor is started, the output power of the variable frequency motor reaches the driving sprocket 22 on the output shaft of the speed reducer through the speed reducer, the driving sprocket 22 can drive a chain to drive when rotating, the chain can drive the driven sprocket 21 to rotate, the driving sprocket 22 and the driven sprocket 21 are located in the same plane, and the rotation directions are the same, so that the pyrolysis drying cylinder 3 is driven to rotate. The sprocket guard 20 may be provided outside the driving sprocket 22 and the driven sprocket 21 for dust prevention. The pyrolysis drying cylinder body 3 is driven to rotate by a chain transmission driving mode, the mode has no elastic sliding and slipping phenomena, the average transmission ratio is accurate, the work is reliable, and the efficiency is high; high transmission power and high overload capacity.
On the basis of the above embodiment, as a further preferred, the discharging system 6 comprises a charging barrel 23, a side surface of the charging barrel 23 is provided with a feeding hole connected with the pyrolysis drying barrel 3, a bottom of the charging barrel 23 is provided with a discharging end, the discharging end of the charging barrel 23 is provided with a butterfly valve 24, and a side surface of the charging barrel 23 is provided with an air inlet pipe 13 for connecting an air outlet pipe of the atmosphere control device.
It should be noted that, feed cylinder 23 upper portion is cylindricly, the lower part is the obconical, when setting up feed cylinder 23, connect the feed inlet of side in the dry barrel of pyrolysis 3, make the inside of feed cylinder 23 and the inside intercommunication of the dry barrel of pyrolysis 3, thereby guarantee that the material can get into in the feed cylinder 23, the material that gets into in the feed cylinder 23 can be under the effect of gravity the discharge end of downstream to the bottom, can realize the discharge or stop discharging of material through the switching of control butterfly valve 24, atmosphere control device passes through the outlet duct and connects in the intake pipe 13 of feed cylinder 23, in order to feed inert gas in the feed cylinder 23 and the dry barrel of pyrolysis 3, prevent the oxidation in order to protect the material.
On the basis of the above embodiment, it is further preferable that the atmosphere control system includes a gas cylinder 27, and an electromagnetic valve 26 is provided between the gas outlet pipe of the gas cylinder 27 and the gas inlet pipe 13 of the cartridge 23. The air outlet pipe of the air bottle 27 is connected with the air inlet pipe 13 of the charging barrel 23 through the air inlet hose 25, the electromagnetic valve 26 can control the air inlet time and amount of the air bottle 27 into the charging barrel 23, the electromagnetic valve 26 is connected with the electric control system 9, the electric control system 9 controls the air inlet amount in the charging barrel 23 and the pyrolysis drying barrel 3 through controlling the electromagnetic valve 26, and automatic air inlet cut-off can be achieved.
On the basis of the above embodiment, as a further preferred option, the cooling system 7 is a water cooling system, the water cooling system includes a cooling water tank, a water pump 14, and a water cooling chamber 12 sleeved outside the transfer cylinder between the pyrolysis drying cylinder 3 and the discharging system 6, the top and the side of the water cooling chamber 12 are provided with a plurality of atomizing nozzles, the bottom of the water cooling chamber 12 is provided with a water outlet nozzle, the inner wall of the water cooling chamber 12 is provided with a lining plate, and the water pump 14 is arranged outside the cooling water tank. It should be noted that the cooling water tank is used for storing water, the cooling water tank includes a water filling port 28 for injecting water inwards, a water outlet 29 for connecting the water pump and a water return port for connecting the water outlet nozzle, a water return ball valve 30 is arranged on the water return port, the water cooling chamber 12 is connected with the cooling water tank through a pump water pipe and a water return pipe, the water pump 14 is arranged on the pump water pipe between the cooling water tank and the water cooling chamber 12, one end of the pump water pipe is connected with the pump water port of the water pump 14, the other end of the pump water pipe is connected with a plurality of atomizing nozzles, water pumped by the water pump 14 is directly sprayed on the top and the side of the pyrolysis drying cylinder 3 through the atomizing nozzles, the water sprayed on the pyrolysis drying cylinder 3 can flow downwards to the bottom of the water cooling chamber 12 and is discharged through the water outlet nozzle, the water outlet nozzle. The lining plate is arranged on the inner wall of the water-cooling cavity 12, so that the water-cooling cavity 12 can be prevented from rusting, and the service life of the water-cooling cavity 12 is prolonged. This embodiment cools off the material after the pyrolysis through circulative cooling's mode, and the cooling effect is showing to can the using water wisely.
On the basis of the above embodiment, as a further preferable option, the dust collecting system includes a settling chamber, a cloth bag dust collecting 35, a spray tower 33, and a fan 32, the settling chamber is disposed between the feeding system 1 and the pyrolysis drying cylinder 3, the first sealing device is disposed between the settling chamber and the feeding end of the pyrolysis drying cylinder 3, the cloth bag dust collecting 35 is connected to the settling chamber, the spray tower 33 is connected to the cloth bag dust collecting 35, the fan 32 is connected to the spray tower 33, and the fan 32 is further connected to the chimney 31. It should be noted that the settling chamber and the bag-type dust collection 35, the bag-type dust collection 35 and the spray tower 33, the spray tower 33 and the fan 32, and the fan 32 and the chimney 31 are all connected by a pipeline 34. The settling chamber comprises a primary settling chamber 2 and a secondary settling chamber 36, and the settling chamber is a device for naturally settling dust particles in the dust-containing gas flow by means of gravity to achieve the purification of gas. After the fan 32 is driven, gas enters the cloth bag dust collection 35 from the settling chamber, the settling chamber can purify exhausted gas for the first time, then dust is removed for the second time through the cloth bag dust collection 35, the gas enters the spray tower 33 and then sprays liquid in the spray tower 33, impurities in the gas inside the adhesion spray tower 33 descend, the exhausted gas is further purified, and the gas is exhausted through the chimney 31 after passing through the spray tower 33. The present embodiment can purify the gas discharged into the atmosphere, so that the discharge reaches the standard.
On the basis of the above embodiment, as a further preferred, the first sealing device includes a first high-temperature-resistant sealing ring and a first sealing valve, and the second sealing device includes a second high-temperature-resistant sealing ring and a second sealing valve.
It should be noted that, the dynamic seal of pyrolysis drying barrel 3 and deposit room can be realized to first high temperature resistant sealing washer and first sealing valve, and the dynamic seal of pyrolysis drying barrel 3 and discharge system 6 can be guaranteed to second high temperature resistant sealing washer and second sealing valve, can prevent outside air entering and pyrolysis drying barrel 3 inside atmosphere from leaking, keeps the inside atmosphere of pyrolysis drying barrel 3.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The external heating atmosphere drying pyrolysis device provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. An external heating atmosphere drying pyrolysis device is characterized by comprising: the device comprises a feeding system (1), a pyrolysis drying cylinder (3) used for pyrolysis and conveying materials during rotation, an external heating device (4) used for externally heating the pyrolysis drying cylinder (3), a power device (5) used for driving the pyrolysis drying cylinder (3) to rotate, a discharging system (6), a cooling system (7) used for cooling the materials pyrolyzed by the pyrolysis drying cylinder (3), a first sealing device, a second sealing device, an atmosphere control system used for filling inert gas into the pyrolysis drying cylinder (3), a dust collection system, an electric control system (9) and an operation platform (8);
the feeding system (1) is connected to the feeding end of the pyrolysis drying cylinder (3), the outer heating device (4) is arranged outside the pyrolysis drying cylinder (3), the discharging system (6) is arranged at the discharging end of the pyrolysis drying cylinder (3), the cooling system (7) is arranged between the discharging end of the pyrolysis drying cylinder (3) and the discharging system (6), the first sealing device is arranged at the feeding end of the pyrolysis drying cylinder (3), the second sealing device is arranged at the feeding end of the discharging system (6), the atmosphere control system is respectively communicated with the inside gas of the pyrolysis drying cylinder (3) and the discharging system (6), the dust collection system is arranged between the discharging end of the feeding system (1) and the feeding end of the pyrolysis drying device, and the feeding system (1), Dust collecting system power device (5), cooling system (7) discharge system (6) atmosphere control system all with electrical system (9) signal connection, charge-in system (1) dust collecting system pyrolysis drying barrel (3) discharge system (6) reach atmosphere control system all set up in on operation platform (8), the feed end of pyrolysis drying barrel (3) is higher than the discharge end of pyrolysis drying barrel (3).
2. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the pyrolysis drying cylinder (3) comprises a cylinder body, a material turning plate (15) for turning the material is arranged on the inner wall of the cylinder body, a rapping mechanism (17) is arranged on the periphery of the cylinder body, and a plurality of water retaining rings (16) are arranged on the periphery of the cylinder body.
3. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the external heating device (4) comprises a housing, an insulating layer (18) is arranged on the inner wall of the housing, a silicon carbide rod (19) is arranged on the inner side of the insulating layer (18), a temperature control thermocouple (11) for controlling the temperature inside the housing is arranged outside the housing, and the temperature control thermocouple (11) is in signal connection with the electric control system (9).
4. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the power device (5) comprises a variable frequency motor, an output shaft of the variable frequency motor is connected to a speed reducer, a driving sprocket (22) is arranged on an output shaft of the speed reducer, a driven sprocket (21) is arranged outside the pyrolysis drying cylinder (3), and the driving sprocket (22) is in transmission connection with the driven sprocket (21) through a chain.
5. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the discharging system (6) comprises a material barrel (23), the side surface of the material barrel (23) is provided with a feeding hole connected with the pyrolysis drying barrel (3), the bottom of the material barrel (23) is provided with a discharging end, the discharging end of the material barrel (23) is provided with a butterfly valve (24), and the side surface of the material barrel (23) is provided with an air inlet pipe (13) connected with an air outlet pipe of the atmosphere control device.
6. The external heating atmosphere dry pyrolysis device according to claim 1, wherein the atmosphere control system comprises a gas cylinder (27), and a solenoid valve (26) is arranged between an outlet pipe of the gas cylinder (27) and an inlet pipe (13) of the charging barrel (23).
7. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the cooling system (7) is a water cooling system, the water cooling system comprises a cooling water tank, a water pump (14) and a water cooling cavity (12) sleeved outside the transfer cylinder between the pyrolysis drying cylinder (3) and the discharging system (6), the top and the side of the water cooling cavity (12) are provided with a plurality of atomizing nozzles, the bottom of the water cooling cavity (12) is provided with a water outlet nozzle, the inner wall of the water cooling cavity (12) is provided with a lining plate, and the water pump (14) is arranged outside the cooling water tank.
8. The external heating atmosphere drying pyrolysis device according to claim 1, wherein the dust collection system comprises a settling chamber, a bag dust collection (35), a spray tower (33) and a fan (32), the settling chamber is arranged between the feeding system (1) and the pyrolysis drying cylinder (3), the first sealing device is arranged between the settling chamber and the feeding end of the pyrolysis drying cylinder (3), the bag dust collection (35) is connected to the settling chamber, the spray tower (33) is connected to the bag dust collection (35), the fan (32) is connected to the spray tower (33), and the fan (32) is further connected to a chimney (31).
9. The externally heated atmosphere dry pyrolysis apparatus of claim 1 wherein the first sealing means comprises a first refractory seal ring and a first seal valve and the second sealing means comprises a second refractory seal ring and a second seal valve.
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| CN112902591A (en) * | 2021-02-03 | 2021-06-04 | 浙江快驴科技有限公司 | Lithium battery material drying device and using method thereof |
| CN113188319A (en) * | 2021-05-25 | 2021-07-30 | 山西沃锦新材料股份有限公司 | Device and method for continuously producing anhydrous barium chloride |
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| CN111503641B (en) | 2022-10-11 |
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