CN110975736A - Device and method for mixing and blending fine vanadium slag - Google Patents
Device and method for mixing and blending fine vanadium slag Download PDFInfo
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- CN110975736A CN110975736A CN201911319736.4A CN201911319736A CN110975736A CN 110975736 A CN110975736 A CN 110975736A CN 201911319736 A CN201911319736 A CN 201911319736A CN 110975736 A CN110975736 A CN 110975736A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/881—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise by weighing, e.g. with automatic discharge
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Abstract
A device and a method for mixing and proportioning fine vanadium slag belong to the technical field of vanadium slag sodium oxide roasting vanadium extraction equipment and methods, and are used for proportioning fine vanadium slag. The technical scheme is as follows: the choice vanadium slag feed bin, the electric precipitator ash feed bin, the lower extreme discharge gate of additive feed bin is connected with tooth cable formula powder conveyor through double-barrelled spiral measurement title respectively, tooth cable formula powder conveyor order with preceding screw conveyer, continuous spiral shell strip blendor, back screw conveyer, the mixture lifting machine is connected, the upper end of mixture lifting machine is connected with the top feed inlet of homogenization storehouse, the lower part discharge gate of homogenization storehouse is connected with the feed inlet of biax humidification blendor through conveyor, the discharge gate of additive joining in marriage jar is connected with the feed inlet of biax humidification blendor, the discharge gate of biax humidification blendor is connected with the rotary kiln. The method has the advantages of simple operation flow, high production line capacity, good production continuity and high efficiency, stabilizes the grade of the mixed material and improves the adding precision of the fine vanadium slag auxiliary material.
Description
Technical Field
The invention relates to a device and a method for mixing and proportioning fine vanadium slag in a vanadium slag sodium oxide roasting vanadium extraction process, and belongs to the technical field of vanadium slag sodium oxide roasting vanadium extraction equipment and methods.
Background
In the process of extracting vanadium by sodium oxide roasting of vanadium slag, a certain amount of additive is required to be added into fine vanadium slag after being subjected to a mill and iron removal, and then the fine vanadium slag is conveyed to a rotary kiln for further roasting and extracting vanadium. In the existing vanadium slag sodium oxide roasting vanadium extraction technology, intermittent mixing is mostly adopted in the fine vanadium slag mixing process, materials are uniformly mixed in a single batch and soaked by adding water into the materials, the process and the mixing method are uniformly mixed in a single batch, but the grade difference of the mixed materials of vanadium slag among the batches of the materials is large, the stabilization of all vanadium in vanadium slag entering a kiln and the roasting of the vanadium slag are not facilitated, and meanwhile, the production rhythm of the process is discontinuous, and the process is not suitable for the uniform mixing operation of large-batch fine vanadium slag.
Disclosure of Invention
The invention aims to solve the technical problem of providing a device and a method for mixing and blending fine vanadium slag, which can continuously and repeatedly mix fine vanadium slag with different grades and other ingredients to realize uniform mixing of solid powdery materials with different grades and different densities according to the proportion of technical requirements, and solve the problems of large grade fluctuation and poor production continuity of mixed materials after mixing and blending fine vanadium slag in the prior art.
The technical scheme for solving the technical problems is as follows:
a device for mixing and proportioning fine vanadium slag comprises a fine vanadium slag bin, an electric dedusting ash bin, an additive bin, a double-pipe spiral metering scale, a toothed rope type powder conveyer, a front spiral conveyer, a continuous spiral strip type mixer, a rear spiral conveyer, a mixture lifter, a homogenizing warehouse, a double-shaft humidifying mixer and an additive proportioning tank, wherein the fine vanadium slag bin, the electric dedusting ash bin and the additive bin are arranged in parallel, lower end discharge ports of the fine vanadium slag bin, the electric dedusting ash bin and the additive bin are respectively connected with the toothed rope type powder conveyer through the double-pipe spiral metering scale, the toothed rope type powder conveyer is connected with the front spiral conveyer, the front spiral conveyer is connected with the continuous spiral strip type mixer, the continuous spiral strip type mixer is connected with the rear spiral conveyer, the rear spiral conveyer is connected with the lower end of the mixture lifter, the upper end of the mixture lifter is connected with a top feed port of the homogenizing warehouse, the lower part discharge port of the homogenizing silo is connected with the feed inlet of the double-shaft humidifying mixer through a conveying device, the discharge port of the double-shaft humidifying mixer is connected with the rotary kiln, the additive adding tank is arranged on one side of the double-shaft humidifying mixer, and the discharge port of the additive adding tank is connected with the feed inlet of the double-shaft humidifying mixer.
Above-mentioned device of meticulous vanadium slag misce bene batching, the feed bin feed opening of meticulous vanadium slag feed bin, electric precipitator dust feed bin, additive feed bin is two discharge gates, two discharge gates of feed bin feed opening are connected with two double-barrelled spiral measurement weighings through two curve unloading pipes respectively, tooth cable formula defeated powder machine, preceding screw conveyer, continuous spiral shell strip blendor, back screw conveyer is two, two double-barrelled spiral measurement weighings, tooth cable formula defeated powder machine, preceding screw conveyer, continuous spiral shell strip blendor, two sets of parallel transport material devices are constituteed respectively to back screw conveyer, two back screw conveyer's output is connected with the lower extreme of mixture lifting machine.
According to the device for mixing and proportioning the fine vanadium slag, the double-pipe spiral metering scale comprises an upper spiral and a lower spiral, the upper spiral is a feeding spiral of the metering scale, a feeding port of the upper spiral is connected with the curve blanking pipe, the lower spiral is a metering spiral, a feeding port of the lower spiral is connected with a discharging port of the upper spiral through flexible connection, and a discharging port of the lower spiral is connected with the toothed rope type powder conveying machine through flexible connection.
Above-mentioned meticulous vanadium slag misce bene's device, back screw conveyer is connected through the lower extreme feed inlet of ejection of compact elephant trunk with the mixture lifting machine, the upper end discharge gate of mixture lifting machine is connected with homogenization storehouse pan feeding mouth through the lifting machine elephant trunk, homogenization storehouse pan feeding mouth is located homogenization storehouse top center, homogenization storehouse top is installed the sack formula dust collector that has the draught fan, the inside decompression awl that is provided with of homogenization storehouse, decompression awl below installation buffering fill wind send the chute, the lower extreme that buffering was fought wind send the chute is connected with the upper end import that the buffering was fought, the lower extreme export that the buffering was fought is connected with the lower part discharge gate of homogenization storehouse through ejection of compact wind send the chute, roots's fan is installed to homogenization storehouse lower part, roots's fan supply-air duct is.
Above-mentioned device of meticulous vanadium slag misce bene, conveyor between the lower part discharge gate of homogenization storehouse and the feed inlet of biax humidification blendor includes mixing material lifting machine, chevron shape chute, and mixing material lifting machine's lower extreme is connected with the lower part discharge gate of homogenization storehouse, and mixing material lifting machine's upper end discharge gate is connected with a branch road upper end of chevron shape chute, and another branch road upper end of chevron shape chute is connected with the discharge gate that the jar was joined in marriage with the additive, and the lower extreme of chevron shape chute is connected with the feed inlet of biax humidification blendor.
The device for mixing and proportioning the fine vanadium slag also comprises a material conveying auxiliary line connected with the homogenizing silo in parallel, wherein the material conveying auxiliary line consists of a belt conveyor, a material inlet of the belt conveyor is connected with a material outlet chute of a rear screw conveyor, and a material outlet of the belt conveyor is connected with a material inlet of a material mixing hoister.
A method for mixing and batching fine vanadium slag by adopting the device for mixing and batching fine vanadium slag comprises the following steps:
Bulk materials in the fine vanadium slag bin, the electric dedusting ash bin and the additive bin are respectively metered by a double-pipe spiral metering scale, the weighed three materials are conveyed to a toothed rope type powder conveyor, and the toothed rope type powder conveyor conveys the three materials to a continuous spiral strip type mixer through a front spiral conveyor;
step 2
The continuous spiral strip type mixer preliminarily stirs and uniformly mixes the three materials, then conveys the preliminarily stired and uniformly mixed materials to a feed inlet of a mixture lifter through a rear spiral conveyor and a discharge chute, and the mixture lifter lifts and conveys the mixed materials to the feed inlet at the top of the homogenizing silo;
step 3
The homogenizing silo is used for carrying out flat-laying direct-taking type homogenization on the mixed material through a pressure reducing cone, a buffer hopper air conveying chute and a buffer hopper to obtain the mixed material with uniform fine vanadium slag grade and additive content, and the homogenized mixed material is output from a discharge port at the lower part of the homogenizing silo through a discharge air conveying chute;
The homogenized mixture output from a discharge port at the lower part of the homogenizing silo is lifted by a homogenizing lifter to enter a double-shaft humidifying mixer, an additive is added into an additive adding tank to enter the double-shaft humidifying mixer, the double-shaft humidifying mixer is used for adding water to the mixture and the additive to soak the mixture and uniformly mix the mixture again to obtain a mixture with a certain water content, and the mixture is conveyed to the rotary kiln by a conveying device.
In the step 2, the materials primarily mixed by the continuous spiral strip type mixer or the belt conveyor conveyed to the conveying auxiliary line through the rear spiral conveyor and the discharging chute are conveyed to the mixed material hoisting machine by the belt conveyor, and the mixed material is hoisted by the mixed material hoisting machine to enter the double-shaft humidifying mixer.
The invention has the beneficial effects that:
the method comprehensively adopts the modes of continuous weighing, continuous mixing, flat spreading and direct taking of a homogenizing silo and continuous humidification of materials, and continuously mixes materials such as fine vanadium slag, rotary kiln electric precipitator dust, additives and the like of different grades for multiple times, so that solid powdery materials of different grades and different densities are uniformly mixed according to the proportion of technical requirements; the mixing and blending process adopts a double-line process flow, so that higher continuous production stability can be realized; particularly, the hyperbolic feeding pipe adopted in the process solves the manufacturability problem that powdery materials are unstable in discharging and easy to bridge, and also solves the problem of continuous metering deviation of the powdery materials; the double-discharge-port homogenizing warehouse adopted in the process adopts a single-point material distribution and vertical material taking material homogenizing method, so that the grade stability of the mixed material is ensured.
The method has the advantages of simple operation flow, high production line capacity, good production continuity and high efficiency, stabilizes the grade of the mixed material and improves the adding precision of the fine vanadium slag auxiliary material.
Drawings
FIG. 1 is a schematic structural diagram of a fine vanadium slag compounding device of the present invention;
fig. 2 is a left side view of the fine vanadium slag bin, the double-pipe spiral weighing scale and the toothed rope type powder conveyer of fig. 1.
The figures are labeled as follows: the device comprises a fine vanadium slag bin 1, an electric dedusting ash bin 2, an additive bin 3, a bin feed opening 4, a curve feed pipe 5, a double-pipe spiral metering scale 6, an upper spiral 7, a lower spiral 8, a flexible connection 9, a toothed rope type powder conveyer 10, a powder conveyer discharge opening 11, a front spiral conveyer 12, a continuous spiral strip type mixer 13, a rear spiral conveyer 14, a discharge chute 15, a mixture lifter 16, a lifter chute 17, a cloth bag dust collector 18, a homogenizing bin 19, a decompression cone 20, a buffer hopper air-conveying chute 21, a buffer hopper 22, a discharge air-conveying chute 23, a Roots blower 24, a uniform mixing material lifter 25, a herringbone chute 26, a double-shaft humidifying mixer 27, an additive adding tank 28, a belt conveyer 29 and a rotary kiln 30.
Detailed Description
The device for mixing and proportioning the fine vanadium slag comprises a fine vanadium slag bin 1, an electric dedusting ash bin 2, an additive bin 3, a curve blanking pipe 5, a double-pipe spiral metering scale 6, a toothed rope type powder conveyer 10, a front spiral conveyer 12, a continuous spiral strip type mixer 13, a rear spiral conveyer 14, a discharging chute 15, a mixture lifter 16, a lifter chute 17, a bag-type dust remover 18, a homogenizing silo 19, a mixed material lifter 25, a herringbone chute 26, a double-shaft humidifying mixer 27, an additive adding tank 28 and a belt conveyer 29.
FIG. 1 shows that the whole structure of the fine vanadium slag mixing device is as follows:
a vanadium slag selecting bin 1, an electric dedusting ash bin 2 and an additive bin 4 are arranged in parallel;
the lower end discharge ports of the selected vanadium slag bin 1, the electric dedusting ash bin 2 and the additive bin 3 are respectively connected with a toothed rope type powder conveyer 10 through a curve blanking pipe 5 and a double-pipe spiral metering scale 6, the toothed rope type powder conveyer 10 is connected with a front spiral conveyer 12, the front spiral conveyer 12 is connected with a continuous spiral strip type mixer 13, the continuous spiral strip type mixer 13 is connected with a rear spiral conveyer 14, and the rear spiral conveyer 14 is connected with the lower end of a mixture lifter 16;
the upper end of the mixture hoister 16 is connected with the top feed inlet of the homogenizing silo 19, the lower discharge port of the homogenizing silo 19 is connected with the feed inlet of the double-shaft humidifying mixer 27 through a conveying device, the additive adding tank 28 is arranged at one side of the double-shaft humidifying mixer 27, the discharge port of the additive adding tank 28 is connected with the feed inlet of the double-shaft humidifying mixer 27, and the discharge port of the double-shaft humidifying mixer 27 is connected with the rotary kiln 30;
the device also comprises a secondary delivery line which is connected with the homogenization silo 19 in parallel and consists of a belt conveyor 29, the belt conveyor 29 is connected with the feed inlet of the double-shaft humidifying material mixing machine 27 through a conveying device, and mixed materials can be directly conveyed into the double-shaft humidifying material mixing machine 27 without passing through the homogenization silo 19.
Fig. 1 and 2 show that the fine vanadium slag bin 1, the electric dedusting ash bin 2 and the bin feed opening 4 of the additive bin 3 are double feed openings, two feed openings of the bin feed opening 4 are respectively connected with two double-pipe spiral metering scales 6 through two curve feed pipes 5, the toothed rope type powder conveying machine 10, the front spiral conveyor 12, the continuous spiral strip type material mixing machine 13 and the rear spiral conveyor 14 are two, the two double-pipe spiral metering scales 6, the toothed rope type powder conveying machine 10, the front spiral conveyor 12, the continuous spiral strip type material mixing machine 13 and the rear spiral conveyor 14 respectively form two groups of parallel material conveying devices, and the output ends of the two rear spiral conveyors 14 are connected with the lower end of the mixture lifting machine 16. The mixing and batching process adopts a double-line process flow, can realize higher continuous production stability, particularly solves the manufacturability problem that the powdery material is unstable in discharging and easy to bridge by adopting the hyperbolic feeding pipe 5 in the process, and also solves the problem of continuous metering deviation of the powdery material.
Fig. 1 shows that the double-tube spiral scale 6 comprises an upper spiral 7 and a lower spiral 8. The upper spiral 7 is a metering scale feeding spiral, a feeding port of the upper spiral 7 is connected with the curve blanking pipe 5, the lower spiral 8 is a metering spiral, a feeding port of the lower spiral 8 is connected with a discharging port of the upper spiral 7 through a flexible connection 9, and a discharging port of the lower spiral 8 is connected with a toothed rope type powder conveying machine 10 through a flexible connection 9. The material gets into spiral 7 after passing through curve unloading pipe 5, and the even and basic equivalent entering of material of being convenient for measures the spiral, can effectively improve material measurement accuracy, and the material gets into tooth cable formula powder conveyor 10 through flexible coupling 9 after 8 measurement down. The toothed rope type powder conveyer 10 is a closed type powder material conveying device and prevents dust from rising, and two powder conveyer discharge ports 11 are arranged at the outlet end of the toothed rope type powder conveyer, so that the powder material can be effectively conveyed out of the toothed rope type powder conveyer 10, and the material is prevented from being blocked at the tail end.
Fig. 1 shows that the material enters a front screw conveyor 12 after passing through a powder conveyor discharge port 11 of a toothed rope type powder conveyor 10, and is conveyed to a continuous spiral strip type mixer 13 through the front screw conveyor 12. The continuous spiral strip type mixer 13 comprises a support shaft, a reverse spiral strip, a forward spiral strip and four groups of stirring screws, wherein part of materials entering the continuous spiral strip type mixer 13 are stirred in different directions by the reverse spiral strip and the four groups of stirring screws in the process that the forward spiral strip is pushed to mix uniformly, and the materials of all phases are guaranteed to be mixed uniformly.
Fig. 1 shows that rear screw conveyor 14 is connected with the lower end feed inlet of mixture elevator 16 through discharge chute 15, and the upper end discharge gate of mixture elevator 16 is connected with homogenization storehouse pan feeding mouth through elevator chute 17, and homogenization storehouse pan feeding mouth is located homogenization storehouse top center, and the material of being convenient for falls to scattering all around, realizes the material tiling, the homogenization of being convenient for. The inside decompression awl 20 that is provided with of homogenization storehouse 19, two buffering fill wind send chute 21 of decompression awl 20 below installation, two buffering fill wind send chute 21 independent interval ejection of compact, and the perpendicular whereabouts can be realized basically to the material in the homogenization storehouse 19, so far realizes the effect that the tiling of material was directly got in the homogenization storehouse 19. The lower extreme of buffering fill wind send chute 21 to be connected with the upper end import of buffering fill 22, and the lower extreme export of buffering fill 22 is connected with the lower part discharge gate of homogenization storehouse 19 through ejection of compact wind send chute 23, and the material gets into buffering fill 22 buffering through buffering fill wind send chute 21, and the material impact force is big when preventing the high material level of homogenization storehouse 19.
FIG. 1 shows that a bag type dust collector 18 with an induced draft fan is installed on the top of the homogenizing silo 19 for dust removal. The lower part of the homogenizing chamber 19 is provided with a Roots blower 24, and an air supply pipeline of the Roots blower 24 is respectively connected with the buffer hopper air supply chute 21 and the discharge air supply chute 23 and used for supplying air.
Fig. 1 shows that the material is conveyed between the lower discharge port of the homogenizing silo 19 and the feed port of the double-shaft humidifying mixer by a conveying device, and the conveying device comprises a mixing and refining material elevator 25 and a herringbone chute 26. The lower end of the blending material hoister 25 is connected with the lower discharge port of the homogenizing silo 19, the upper discharge port of the blending material hoister 25 is connected with the upper end of one branch of the herringbone chute 26, the upper end of the other branch of the herringbone chute 26 is connected with the discharge port of the additive adding tank 28, and the lower end of the herringbone chute 26 is connected with the feed port of the double-shaft humidifying mixer 27. The mixed material and the additive enter a double-shaft humidifying mixer 27 through a herringbone chute 26 simultaneously, are soaked by adding water and are mixed uniformly again to obtain mixed material with certain moisture content, and the mixed material is conveyed to a rotary kiln 30 by a conveying device.
The blending elevator 25 and the preceding blending elevator 16 are bucket elevators.
In FIG. 1, the feeding port of the belt conveyer 28 of the feeding subline is connected with the discharging chute 14 connected with the discharging port of the rear screw conveyer 13, and the discharging port of the belt conveyer 28 is connected with the feeding port of the blending material elevator 25. When the homogenizing silo 19 needs to be overhauled or a process fault occurs, the materials primarily mixed by the continuous spiral strip type mixer 13 are directly conveyed to the mixed material lifting machine 25 through the belt conveyor 28 of the conveying auxiliary line, and then conveyed to the double-shaft humidifying mixer 27 for material humidification and additive addition.
The method for mixing the fine vanadium slag comprises the following steps:
Bulk materials in the fine vanadium slag bin 1, the electric dedusting ash bin 2 and the additive bin 3 are respectively metered by a double-pipe spiral metering scale 6, the weighed three materials are conveyed to a toothed rope type powder conveyor 10, and the toothed rope type powder conveyor 10 conveys the three materials to a continuous spiral strip type mixer 13 through a front spiral conveyor 12;
step 2
The continuous spiral strip type mixer 13 primarily stirs and uniformly mixes the three materials, then conveys the primarily-stired and uniformly-mixed materials to a feed inlet of a mixture lifter 16 through a rear spiral conveyor 14 and a discharge chute 15, and the mixture lifter 16 lifts and conveys the mixed materials to a feed inlet at the top of a homogenizing silo 19;
step 3
The homogenizing silo 19 is used for flatly paving and directly homogenizing the mixed materials through a pressure reducing cone 20, a buffer hopper air conveying chute 21 and a buffer hopper 22 to obtain the mixed materials with uniform fine vanadium slag grade and additive content, and the homogenized mixed materials are output from a discharge port at the lower part of the homogenizing silo 19 through a discharge air conveying chute 23;
The homogenized mixture output from the discharge port at the lower part of the homogenizing silo 19 is lifted by a homogenizing lifter 25 and enters a double-shaft humidifying mixer 27, an additive is added into an additive adding tank 28 and enters the double-shaft humidifying mixer 27, the double-shaft humidifying mixer 27 adds water to the mixture and the additive for soaking and mixing again to obtain a mixture with a certain water content, and the mixture is conveyed to a rotary kiln 30 by a conveying device.
In the step 2, when the homogenization silo 19 needs to be overhauled or a process fault occurs, the materials primarily mixed by the continuous spiral strip type mixer 13 can be conveyed to the belt conveyor 29 of the conveying subline through the rear spiral conveyor 14 and the discharging chute 15, conveyed to the mixed material lifting machine 25 through the belt conveyor 29, and lifted into the double-shaft humidifying mixer 27 through the mixed material lifting machine 25.
One embodiment of the invention is as follows:
the diameter of the fine vanadium slag bin 1 is 6000mm, and the height is 12000 mm;
the diameter of the electric dedusting ash bin 2 is 6000mm, and the height is 9000 mm;
the additive bin 3 has a diameter of 6000mm and a height of 9000 mm;
the model of the double-pipe spiral metering scale 6 is LXS-RZ-450;
the model of the toothed rope type powder conveyer 10 is HDCS 410;
the front screw conveyor 12 is of the type CMG 400;
the model of the continuous spiral strip type mixer 13 is HDLH 100;
the rear screw conveyor 14 is of the type CMG 400;
the diameter of the discharging chute 15 is 500mm multiplied by 500 mm;
the model of the mixture hoister 16 is TBD 315;
the diameter of the elevator chute 17 is phi 377 mm;
the model of the bag-type dust collector 18 is FGM 32-4;
the homogenizing silo 19 has a diameter of 12000mm and a height of 360000 mm;
the model of the blending lifter 25 is TBD 400;
the model of the double-shaft humidifying mixer 27 is YSJ 650C;
the belt conveyor 29 is of type B = 800.
Claims (8)
1. The utility model provides a device of meticulous vanadium slag thoughtlessly batching which characterized in that: it comprises a fine vanadium slag bin (1), an electric dedusting ash bin (2), an additive bin (3), a double-pipe spiral metering scale (6), a toothed rope type powder conveyer (10), a front spiral conveyer (12), a continuous spiral strip type mixer (13), a rear spiral conveyer (14), a mixture lifter (16), a homogenizing bin (19), a double-shaft humidifying mixer (27) and an additive adding tank (28), wherein the fine vanadium slag bin (1), the electric dedusting ash bin (2) and the additive bin (3) are arranged in parallel, the lower end discharge ports of the fine vanadium slag bin (1), the electric dedusting ash bin (2) and the additive bin (3) are respectively connected with the toothed rope type powder conveyer (10) through the double-pipe spiral metering scale powder conveyer (6), the toothed rope type powder conveyer (10) is connected with the front spiral conveyer (12), the front spiral conveyer (12) is connected with the continuous spiral strip type mixer (13), continuous spiral strip blendor (13) are connected with back screw conveyer (14), back screw conveyer (14) are connected with the lower extreme of mixture lifting machine (16), the upper end of mixture lifting machine (16) is connected with the top feed inlet of homogenization storehouse (19), the lower part discharge gate of homogenization storehouse (19) is connected with the feed inlet of biax humidification blendor (27) through conveyor, the discharge gate of biax humidification blendor (27) is connected with rotary kiln (30), additive joins in marriage with jar (28) in one side of biax humidification blendor (27), the discharge gate of additive joins in marriage with jar (28) is connected with the feed inlet of biax humidification blendor (27).
2. The fine vanadium slag mixing and blending device according to claim 1, wherein: the fine vanadium slag bin (1), the electric dedusting ash bin (2) and the bin feed opening (4) of the additive bin (3) are double discharge openings, two discharge openings of the bin feed opening (4) are respectively connected with two double-pipe spiral metering scales (6) through two curve feed pipes (5), the toothed rope type powder conveying machine (10), the front spiral conveyor (12), the continuous spiral strip type material mixing machine (13) and the rear spiral conveyor (14) are two, the two double-pipe spiral metering scales (6), the toothed rope type powder conveying machine (10), the front spiral conveyor (12), the continuous spiral strip type material mixing machine (13) and the rear spiral conveyor (14) respectively form two sets of parallel material conveying devices, and the output ends of the two rear spiral conveyors (14) are connected with the lower end of the mixture lifting machine (16).
3. The fine vanadium slag mixing and blending device according to claim 1, wherein: the double-tube spiral metering scale (6) comprises an upper spiral (7) and a lower spiral (8), the upper spiral (7) is a metering scale feeding spiral, a feeding port of the upper spiral (7) is connected with a curve blanking pipe (5), the lower spiral (8) is a metering spiral, a feeding port of the lower spiral (8) is connected with a discharging port of the upper spiral (7) through a flexible connection (9), and a discharging port of the lower spiral (8) is connected with a toothed rope type powder conveying machine (10) through the flexible connection (9).
4. The fine vanadium slag mixing and blending device according to claim 1, wherein: the rear screw conveyor (14) is connected with a lower end feeding hole of a mixture hoister (16) through a discharging chute (15), an upper end discharging hole of the mixture hoister (16) is connected with a feeding hole of a homogenizing warehouse (19) through a hoister chute (17), the feeding hole of the homogenizing warehouse (19) is positioned in the center of the top of the homogenizing warehouse (19), a cloth bag type dust collector (18) with an induced draft fan is installed at the top of the homogenizing warehouse (19), a decompression cone (20) is arranged in the homogenizing warehouse (19), a buffering hopper air conveying chute (21) is installed below the decompression cone (20), the lower end of the buffering hopper air conveying chute (21) is connected with an upper end inlet of a buffering hopper (22), a lower end outlet of the buffering hopper (22) is connected with a lower discharging hole of the homogenizing warehouse (19) through a discharging air conveying chute (23), a homogenizing fan (24) is installed at the lower part of the homogenizing warehouse (19), the air supply pipeline of the Roots blower (24) is respectively connected with the buffer hopper air supply chute (21) and the discharge air supply chute (23).
5. The fine vanadium slag mixing and blending device according to claim 1, wherein: conveying device between the lower part discharge gate of homogenization storehouse (19) and the feed inlet of biax humidification blendor (27) includes mixing material lifting machine (25), chevron shape chute (26), the lower extreme of mixing material lifting machine (25) is connected with the lower part discharge gate of homogenization storehouse (19), the upper end discharge gate of mixing material lifting machine (25) is connected with a branch road upper end of chevron shape chute (26), another branch road upper end of chevron shape chute (26) is connected with the discharge gate of additive joining in marriage with jar (28), the lower extreme of chevron shape chute (26) is connected with the feed inlet of biax humidification blendor (27).
6. The fine vanadium slag mixing and blending device according to claim 1, wherein: the device also comprises a material conveying auxiliary line which is connected with the homogenizing silo (19) in parallel, wherein the material conveying auxiliary line consists of a belt conveyor (29), a material inlet of the belt conveyor (29) is connected with a material outlet chute (15) of a rear screw conveyor (14), and a material outlet of the belt conveyor (29) is connected with a material inlet of a uniform mixing material hoister (25).
7. The method for mixing and batching the fine vanadium slag by adopting the device for mixing and batching the fine vanadium slag is characterized by comprising the following steps of: it comprises the following steps:
step 1
Bulk materials in the fine vanadium slag bin (1), the electric dedusting ash bin (2) and the additive bin (3) are respectively metered by a double-pipe spiral metering scale (6), the weighed three materials are conveyed to a toothed rope type powder conveyor (10), and the toothed rope type powder conveyor (10) conveys the three materials to a continuous spiral mixer (13) through a front spiral conveyor (12);
step 2
The continuous spiral strip type mixer (13) primarily stirs and uniformly mixes the three materials, then the primarily-stired and uniformly-mixed materials are conveyed to a feeding hole of a mixture hoister (16) through a rear spiral conveyor (14) and a discharging chute (15), and the mixture hoister (16) hoists and conveys the mixed materials to the feeding hole at the top of a homogenizing warehouse (19);
step 3
The homogenizing silo (19) performs flat-laying direct-taking type homogenization on the mixed materials through a pressure reducing cone (20), a buffer hopper air conveying chute (21) and a buffer hopper (22) to obtain the mixed materials with uniform fine vanadium slag grade and additive content, and the homogenized mixed materials are output from a discharge port at the lower part of the homogenizing silo (19) through a discharge air conveying chute (23);
step 4
Homogenized mixture output from a discharge port at the lower part of the homogenizing warehouse (19) is lifted by a mixture lifting machine (25) and enters a double-shaft humidifying mixer (27), meanwhile, an additive adding tank (28) is used for adding an additive and enters the double-shaft humidifying mixer (27), the double-shaft humidifying mixer (27) is used for adding water to the mixture and the additive for wetting and mixing uniformly again to obtain mixture with certain moisture content, and the mixture is conveyed to a rotary kiln (30) by a conveying device.
8. The method for fine vanadium slag compound according to claim 7, characterized in that: and in the step 2, the materials primarily mixed by the continuous spiral strip type mixer (13) or the belt conveyor (29) which is conveyed to a material conveying auxiliary line through the rear spiral conveyor (14) and the discharging chute (15) are conveyed to a mixed material lifting machine (25) by the belt conveyor (29), and the mixed materials are lifted by the mixed material lifting machine (25) to enter the double-shaft humidifying mixer (27).
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| CN201911319736.4A CN110975736A (en) | 2019-12-19 | 2019-12-19 | Device and method for mixing and blending fine vanadium slag |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501430A (en) * | 2020-12-10 | 2021-03-16 | 日照泰东环保科技有限公司 | Recovery device for dedusting ash and use method thereof |
| CN112774553A (en) * | 2020-12-31 | 2021-05-11 | 成都希福生物科技有限公司 | Ice powder batching device and batching method |
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2019
- 2019-12-19 CN CN201911319736.4A patent/CN110975736A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501430A (en) * | 2020-12-10 | 2021-03-16 | 日照泰东环保科技有限公司 | Recovery device for dedusting ash and use method thereof |
| CN112774553A (en) * | 2020-12-31 | 2021-05-11 | 成都希福生物科技有限公司 | Ice powder batching device and batching method |
| CN112774553B (en) * | 2020-12-31 | 2022-08-30 | 成都希福生物科技有限公司 | Ice powder batching device and batching method |
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