CN108889382B - Broken recycling system and method for slag scooping material of electrolytic tank - Google Patents
Broken recycling system and method for slag scooping material of electrolytic tank Download PDFInfo
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- CN108889382B CN108889382B CN201810789279.4A CN201810789279A CN108889382B CN 108889382 B CN108889382 B CN 108889382B CN 201810789279 A CN201810789279 A CN 201810789279A CN 108889382 B CN108889382 B CN 108889382B
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- slag
- ditch
- factory building
- scraper conveyor
- door
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- 239000002893 slag Substances 0.000 title claims abstract description 112
- 239000000463 material Substances 0.000 title claims abstract description 107
- 238000004064 recycling Methods 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 59
- 238000003860 storage Methods 0.000 claims abstract description 45
- 238000007599 discharging Methods 0.000 claims abstract description 39
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000843 powder Substances 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000003792 electrolyte Substances 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/12—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Electrolytic Production Of Metals (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a broken recycling system of slag charge of an electrolytic bath, which comprises a factory building, a discharging ditch, a heavy scraper conveyor, broken rollers, a dust collecting device, a grinding machine, a lifting machine and a storage bin, wherein a factory door is arranged on the factory building; digging a discharge ditch on the ground in the factory building, and arranging a dust collection cover above the discharge ditch; one part of the heavy scraper conveyor is positioned at the bottom of the unloading ditch to form a transportation section, and the other part of the heavy scraper conveyor extends out of the factory building from the unloading ditch to form an output extension section; the crushing roller is arranged above the conveying section and is used for carrying out rolling crushing on slag scooping materials conveyed to the lower part of the crushing roller by the conveying section; the dust collection device is connected and communicated with the dust collection cover through a pipeline; the discharge end of the output extension section is connected with the feed inlet of the grinder; the grinder is connected with a feed inlet of the storage bin through a lifter. The system and the method can improve the utilization efficiency of the slag scooping material, reduce the labor intensity and reduce the environmental pollution.
Description
Technical Field
The invention relates to the technical field of electrolytic aluminum slag removal treatment, in particular to a broken recycling system and method of electrolytic bath slag removal.
Background
In the electrolytic aluminum production process, the inside of the electrolytic tank is sequentially provided with a covering material (heat preservation material), an anode, electrolyte, aluminum water and a cathode from top to bottom, when the electrolytic tank is used for replacing anode carbon blocks, a large amount of covering materials (alumina powder blocks) fall into the electrolyte in the electrolytic tank or the aluminum water to form floating aluminum electrolysis surface shell blocks and aluminum electrolysis tank sediment to be fished out, namely, the fished slag is the fished slag, the main components of the fished slag are alumina powder and the electrolyte, and the fished slag in the slag box becomes an integral body after the electrolyte is cooled and solidified due to the fact that the electrolyte is fished out on the surface of the fished slag of the electrolytic tank, so that great difficulty is brought to crushing.
The initial temperature of the slag scooping material is more than 650 ℃, the temperature is reduced to 200 ℃ after the slag scooping material is naturally cooled in a slag box for 48 hours, and a large amount of smoke is generated in the cooling process, so that the working environment is seriously polluted.
At present, the method for crushing the slag in the electrolytic tank after cooling is that an artificial pneumatic pick is crushed or enters a crusher for crushing, most of the slag cannot smoothly enter the crusher due to larger granularity after solidification of the slag, manual pre-crushing is also needed, labor intensity of workers is high, safety coefficient is low, environment is polluted, the crushed grain size is larger, and the reutilization rate of the slag is low; therefore, a system with high slag salvaging and recycling efficiency, low liberation labor force and environmental protection is needed to solve the current problem.
Disclosure of Invention
The invention aims to provide a broken recycling system and method for slag scooping of an electrolytic cell, which are used for solving the problems of the prior art, improving the utilization efficiency of the slag scooping, reducing the labor intensity and reducing the environmental pollution.
In order to achieve the above object, the present invention provides the following solutions:
the invention provides a broken recycling system of slag charge of an electrolytic bath, which comprises a factory building, a discharging ditch, a heavy scraper conveyor, broken rollers, a dust collecting device, a grinding machine, a lifting machine and a storage bin, wherein a factory door for a transport vehicle to come in and go out is arranged on the factory building; digging the unloading ditch on the ground in the factory building, wherein one end of the unloading ditch extends to the end part of the factory building, and a dust collection cover is arranged above the unloading ditch; one part of the heavy scraper conveyor is positioned at the bottom of the discharging ditch to form a transportation section, the other part of the heavy scraper conveyor extends out of the factory building from the discharging ditch to form an output extension section, and a transportation vehicle dumps slag scooping materials onto the transportation section and sequentially outputs the factory building through the transportation section and the output extension section; the crushing roller is driven to rotate by a roller driving device, and is arranged above the conveying section and used for rolling and crushing slag scooping materials conveyed to the lower part of the crushing roller by the conveying section; the dust collection device is arranged in the factory building, and is connected and communicated with the dust collection cover through a pipeline; the discharge end of the output extension section is connected with the feed inlet of the grinder; the discharge port of the grinder is connected with the feed port of the lifter; and a discharge hole of the hoister is connected with a feed inlet of the storage bin.
Preferably, the discharging groove is arranged along the length direction of the plant, the length of the discharging groove is the same as the inner length of the plant and the length of the transport section, the discharging groove is arranged below the +/-0.00 plane, the depth of the discharging groove is 3m, the length of the discharging groove is 36m, and the volume of the discharging groove is 300m 3 。
Preferably, the crushing roller is arranged at the tail end of the conveying section, and the distance between the lower edge of the crushing roller and the conveying plane of the heavy scraper conveyor is 300mm,350 mm.
Preferably, the discharging opening of the dust collecting device is located above the transportation section so as to discharge dust collected by the dust collecting device onto the transportation section.
Preferably, the output extension section extends upwards and then is connected with a feed inlet of the grinding machine through a chute, and sealing covers are arranged on the output extension section and the chute.
Preferably, the top of the storage bin is also provided with a level gauge, and the volume of the storage bin is [500m ] 3 ,700m 3 ]。
Preferably, the high temperature resistance of the heavy scraper conveyor is more than or equal to 1000 ℃, and the conveying capacity of the heavy scraper conveyor is 80T/h.
Preferably, the house door is an electric rolling door, the house door remote controller is carried by a driver of the transport vehicle, and the house door remote controller is in communication connection with a driving device of the electric rolling door so as to control the opening and closing of the house door.
Preferably, the device further comprises a controller which is respectively in communication connection with the heavy scraper conveyor, the roller driving device, the dust collecting device, the grinding machine and the lifting machine, so that the working states of the heavy scraper conveyor, the roller driving device, the dust collecting device, the grinding machine and the lifting machine are controlled by the controller, the controller is also in communication connection with the material level indicator, the material level indicator transmits material height information in the storage bin to the controller, and when the material level indicator monitors that the material height in the storage bin reaches a preset height, the controller closes the heavy scraper conveyor, the roller driving device, the grinding machine and the lifting machine.
The invention also provides a method for crushing and recycling the slag in the electrolytic tank, which is applied to the system for crushing and recycling the slag in the electrolytic tank and comprises the following steps:
step one: loading the slag scooped out of the electrolytic tank into a transport vehicle for transportation, opening the plant door when the transport vehicle reaches the plant door, closing the plant door after entering the plant, opening the dust collecting device, dumping the slag scooped out onto the transport section in the discharging ditch by the transport vehicle, leaving the transport vehicle, opening the plant door when the transport vehicle moves to the plant door, and closing the plant door after moving out of the plant;
step two: the slag scooping material is cooled in the discharging ditch for 3.5-4.5 hours, and the dust removing device is used for collecting dust generated when the slag scooping material is poured and accelerating the airflow velocity in the discharging ditch to improve the cooling rate of the slag scooping material on the conveying section;
step three: starting the heavy scraper conveyor, crushing the slag skimming material by the crushing roller, and conveying the crushed slag skimming material to the grinding machine;
step four: the crushed slag skimming material is ground into powdery materials through the grinder, and then is conveyed into the storage bin for storage through the hoister.
Compared with the prior art, the invention has the following technical effects:
according to the crushing and recycling system and the crushing and recycling method for the slag scooping materials of the electrolytic tank, the crushing roller is arranged on the heavy scraper conveyor and is suspended above the conveying section of the heavy scraper conveyor through the fixed bracket, two ends of the crushing roller are rotationally connected to the fixed bracket, the crushing roller is driven by the roller driving device to rotate around the axis of the crushing roller, when the slag scooping materials are conveyed to the lower part of the crushing roller by the heavy scraper conveyor, the slag scooping materials between the crushing roller and the heavy scraper conveyor are crushed under the combined action of the crushing roller and the scraper of the heavy scraper conveyor, the crushed slag scooping materials have uniform crushing granularity, the crushed slag scooping materials are ground into powder by the grinder and then are lifted into the storage bin for storage by the lifter, and the powdery slag scooping materials stored in the storage bin can be used as raw materials for electrolytic aluminum production, so that the utilization rate of the slag scooping materials is improved, and the labor intensity is greatly reduced; because the main components of the slag-removing material are alumina and electrolyte, the slag-removing material can be directly mixed into alumina powder after being ground into powder and used as a raw material for electrolytic production; in addition, the slag scooping material is poured into the conveying section of the heavy scraper conveyor in the discharging ditch for storage and cooling, so that the storage of the slag scooping material occupies a limited space above the ground in a factory building, and the transportation and the crushing of the slag scooping material are convenient to follow; after the slag scooping material is transported into a factory, a dust collecting device is started, the dust collecting device can collect dust in the slag scooping material dumping process, the working environment is effectively improved, meanwhile, the dust collecting device can accelerate air flow in a discharging ditch, the cooling speed of the slag scooping material in the discharging ditch is improved, and the electrolytic tank slag scooping material crushing and recycling system is safe, reliable, economical and environment-friendly to operate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a broken recycling system of slag scooping materials of an electrolytic tank;
FIG. 2 is a schematic structural view of a heavy scraper conveyor of the broken recycling system of the slag scooping material of the electrolytic tank;
in the figure: 1-a factory building; 2-a discharge ditch; 3-a heavy-duty scraper conveyor; 31-a transport section; 32-an output extension; 4-crushing rollers; 5-a dust collection device; 6-grinding machine; 7-a lifter; 8-a storage bin.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a broken recycling system and method for slag scooping of an electrolytic cell, which are used for solving the problems of the prior art, improving the utilization efficiency of the slag scooping, reducing the labor intensity and reducing the environmental pollution.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
The invention provides a broken recycling system of slag scooping of an electrolytic cell, in a concrete embodiment of the invention, as shown in figures 1-2, the broken recycling system of slag scooping of an electrolytic cell comprises a factory building 1, a discharging ditch 2, a heavy scraper conveyor 3, a broken roller 4, a dust collecting device 5, a grinding machine 6, a lifting machine 7 and a storage bin 8, wherein the factory building 1 is provided with a factory building door for a transport vehicle to come in and go out, and the transport vehicle is used for transporting the slag scooping; digging a discharge ditch 2 on the ground in the factory building 1, wherein one end of the discharge ditch 2 extends to the end part of the factory building 1, and a dust collection cover is arranged above the discharge ditch 2; one part of the heavy scraper conveyor 3 is positioned at the bottom of the discharging ditch 2 to form a transportation section 31, the other part of the heavy scraper conveyor 3 extends out of the factory building 1 from the discharging ditch 2 to form an output extension section 32, and the transportation vehicle pours the slag-fishing materials onto the transportation section 31 and sequentially outputs the factory building 1 through the transportation section 31 and the output extension section 32; the crushing roller 4 is driven to rotate by a roller driving device, and the crushing roller 4 is arranged above the conveying section 31 and is used for rolling and crushing slag scooping materials conveyed to the lower part of the crushing roller 4 by the conveying section 31; the dust collection device 5 is arranged in the factory building 1, and the dust collection device 5 is connected and communicated with the dust collection cover through a pipeline; the discharge end of the output extension section 32 is connected with the feed inlet of the grinder 6; the discharge port of the grinder 6 is connected with the feed port of the lifter 7; the discharge gate of lifting machine 7 is connected with the feed inlet of storage silo 8.
The method for crushing and recycling the slag scooping material of the electrolytic tank by using the crushing and recycling system of the slag scooping material of the electrolytic tank comprises the following steps:
step one: loading the slag scooped out of the electrolytic tank into a transport vehicle for transportation, when the transport vehicle reaches a factory gate, opening the factory gate, closing the factory gate after the transport vehicle enters the factory 1, and opening the dust collecting device 5, pouring the slag scooped out onto a transport section 31 in the discharge ditch 2 by the transport vehicle, leaving the transport vehicle, and opening the factory gate when the transport vehicle moves to the factory gate again, and closing the factory gate after the transport vehicle moves out of the factory 1;
step two: the slag is cooled in the discharge ditch 2 for 3.5 to 4.5 hours, preferably 4 hours, and the dust removing device is used for collecting dust generated when the slag is poured and accelerating the airflow velocity in the discharge ditch 2 to improve the cooling rate of the slag on the transport section 31;
step three: starting a heavy scraper conveyor 3, crushing slag materials by a crushing roller 4, and conveying the crushed slag materials to a grinding machine 6;
step four: the crushed slag skimming material is ground into powder material by a grinder 6 and then is conveyed into a storage bin 8 for storage by a lifter.
According to the crushing and recycling system for the slag scooping of the electrolytic tank, the heavy scraper conveyor 3 is provided with the crushing roller 4, the crushing roller 4 is suspended above the conveying section 31 of the heavy scraper conveyor 3 through the fixed bracket, two ends of the crushing roller 4 are rotationally connected to the fixed bracket, the crushing roller 4 is driven by the roller driving device to rotate around the axis of the crushing roller 4, when the slag scooping of the heavy scraper conveyor 3 is conveyed to the lower part of the crushing roller 4, the slag scooping between the crushing roller 4 and the heavy scraper conveyor 3 is crushed by the combined action of the scraping plates of the heavy scraper conveyor 3, the crushing granularity is uniform, the crushed slag scooping is ground into powder through the grinder 6 and then is lifted into the storage bin 8 through the lifter 7 for storage, and the powdery slag scooping stored in the storage bin 8 can be used as raw materials for electrolytic aluminum production, so that the utilization rate of the slag scooping is improved, and the labor intensity is greatly reduced; because the main components of the slag-removing material are alumina and electrolyte, the slag-removing material can be directly mixed into alumina powder after being ground into powder and used as a raw material for electrolytic production; in addition, the slag-fishing materials are poured into the conveying section 31 of the heavy scraper conveyor 3 in the discharging ditch 2 for storage and cooling, so that the storage of the slag-fishing materials is reduced, the space above the limited ground in the factory building 1 is occupied, and the transportation and the crushing of the follow-up slag-fishing materials are facilitated; after the slag scooping material is transported into the factory building 1, the dust collecting device 5 is started, the dust collecting device 5 can collect dust in the slag scooping material dumping process, the working environment is effectively improved, meanwhile, the opening of the dust collecting device 5 can accelerate the air flow in the discharging ditch 2, the cooling speed of the slag scooping material in the discharging ditch 2 is improved, and the broken recycling system of the slag scooping material of the electrolytic tank is safe and reliable in operation, economical and environment-friendly.
The heavy scraper conveyor 3 is an existing device in the prior art, and consists of a motor, a scraper and a chain, wherein the scraper is a steel scraper, the scraper is arranged on the chain and is used for bearing and conveying slag-fishing materials, the motor drives the chain to rotate so as to drive the scraper to move, and the motor is a 2 75KW alternating current variable frequency motor; the crushing roller 4 is a roller with 4 rows of crushing teeth arranged side by side on the side wall, and the roller driving device is 1 75KW motor; the dust collection cover is arranged on the discharging ditch 2 and made of steel materials, and the conveying section 31 can realize load starting, so that the materials are conveyed without leakage and dust.
In another embodiment of the invention, the broken recycling system of the slag scooping of the electrolytic cell, the discharging ditch 2 is arranged along the length direction of the factory building 1, the length of the discharging ditch 2 is the same as the inner length of the factory building 1 and the length of the transportation section 31, and the discharging ditch 2 is arranged in the (+ -)The depth of the discharge ditch 2 is 3m below the 0.00 plane, the length is 36m, and the volume of the discharge ditch 2 is 300m 3 The transport vehicle can discharge the slag scooping material to any position in the discharge ditch 2.
In another embodiment of the present invention, in order to facilitate the unloading of the transport vehicle to the heavy scraper conveyor 3 and to avoid the slag-off from covering the crushing roller 4, the crushing roller 4 of the system for crushing and reutilizing the slag-off of the electrolytic bath is arranged at the end of the transport section 31; in order to make the particle size even after the slag-off is crushed and to facilitate grinding by the grinder 6, the distance between the lower edge of the crushing roller 4 and the conveying plane of the heavy scraper conveyor 3 is 300mm,350mm, preferably 330mm.
In another specific embodiment of the invention, the broken recycling system of the slag scooping of the electrolytic cell is characterized in that the discharging opening of the dust collecting device 5 is positioned above the conveying section 31 to discharge the dust collected by the dust collecting device 5 onto the conveying section 31, the dust collected by the dust collecting device 5 is conveyed out of the factory building 1 by the heavy scraper conveyor 3 and is conveyed to the storage bin 8 for storage sequentially through the grinder 6 and the lifter 7, so that the dust collected by the dust collecting device 5 is treated in time, and the recycling rate of the slag scooping is improved.
In another specific embodiment of the invention, in order to facilitate the transportation of crushed slag-fishing materials to the grinder 6, an output extension section 32 of the electrolytic bath slag-fishing material crushing and recycling system extends upwards and is connected with a feed inlet of the grinder 6 through a chute, and sealing covers are arranged on the output extension section 32 and the chute; after the output extension section 32 extends upwards to a certain height, the crushed slag scooping material is conveniently conveyed to the grinding machine 6 through the chute; the output extension section 32 and the chute are respectively provided with a sealing cover, and each sealing cover is respectively coated above the output extension section 32 and the chute and is respectively the same as the output extension section 32 and the chute in length, so that no material leakage and dust emission can be caused in the conveying process, and the working environment is effectively protected.
In another specific embodiment of the invention, in order to monitor the material height in the storage bin 8 conveniently, a level gauge is also arranged at the top of the storage bin 8 of the broken recycling system of the slag scooping up material of the electrolytic tank, and the volume of the storage bin 8 is 500m 3 ,700m 3 ]Preferably 600m 3 。
In another specific embodiment of the invention, the broken recycling system of the slag scooping material of the electrolytic tank has the high temperature resistance of the heavy scraper conveyor 3 not less than 1000 ℃, namely the heavy scraper conveyor 3 can bear the high temperature not lower than 1000 ℃, and the conveying capacity of the heavy scraper conveyor 3 is 80T/h.
In another specific embodiment of the invention, the broken recycling system of the slag charge of the electrolytic bath further comprises a door remote controller, wherein the factory door is an electric rolling door, the door remote controller is carried by a driver of the transport vehicle, and the door remote controller is in communication connection with a driving device of the electric rolling door so as to control the opening and closing of the factory door; when a driver drives the transport vehicle to the workshop door, the workshop door can be opened and closed by himself; after the transport vehicle enters the factory building 1 and leaves the factory building 1, the factory building door needs to be closed, and dust in the factory building 1 is prevented from leaking.
In another specific embodiment of the invention, the broken recycling system of the slag charge of the electrolytic bath further comprises a controller which is respectively in communication connection with the heavy scraper conveyor 3, the roller driving device, the dust collecting device 5, the grinding machine 6 and the lifting machine 7, so that the working states of the heavy scraper conveyor 3, the roller driving device, the dust collecting device 5, the grinding machine 6 and the lifting machine 7 are controlled by the controller, the controller is also in communication connection with a material level indicator, the material level indicator transmits the material height information in the storage bin 8 to the controller, and when the material level indicator detects that the material height in the storage bin 8 reaches the preset height, the controller closes the heavy scraper conveyor 3, the roller driving device, the grinding machine 6 and the lifting machine 7, namely, the material conveying to the storage bin 8 is stopped; when the material level gauge monitors that the height of the material in the storage bin 8 is lower than the preset height and the slag is completely cooled on the conveying section 31, the controller can restart the heavy scraper conveyor 3, the roller driving device, the grinding machine 6 and the lifting machine 7 to continuously convey the material into the storage bin 8.
The crushing roller 4 is arranged above the heavy scraper conveyor 3, so that slag scooping materials conveyed by the heavy scraper conveyor 3 can be crushed, traditional manual crushing or crushing by a crusher is replaced, and the working efficiency is improved. The broken recycling system and method of the slag scooping material of the electrolytic cell not only solves the problems of high temperature, high labor intensity and poor working environment when the slag scooping material is broken, but also saves human resources and improves working efficiency by using equipment to replace manpower in the use process.
It should be noted that, the capacity of the discharging ditch, the conveying capacity of the heavy-duty chain plate conveyor, the specification selection of the heavy-duty chain plate conveyor and the storage bin capacity in the invention are not limited to the numerical values in the above embodiments, the discharging ditches with different capacity specifications can be set according to different production requirements, and the heavy-duty chain plate conveyors with different specifications and the storage bins with different volume specifications are selected to fall into the protection scope of the invention.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (9)
1. The utility model provides a broken recycling system of slag charge is dragged for to electrolysis trough which characterized in that: comprising the following steps:
the factory building is provided with a factory building door for the transportation vehicle to come in and go out;
the unloading ditch is dug on the ground in the factory building, one end of the unloading ditch extends to the end part of the factory building, and a dust collection cover is arranged above the unloading ditch;
a heavy scraper conveyor, a part of which is positioned at the bottom of the discharging ditch to form
The conveying section, the other part of the heavy scraper conveyor stretches out of the factory building from the unloading ditch to form an output extension section, and the conveying vehicle dumps the slag-fishing material onto the conveying section and sequentially outputs the factory building through the conveying section and the output extension section;
the crushing roller is driven to rotate by a roller driving device, and is arranged above the conveying section and used for rolling and crushing slag scooping materials conveyed to the lower part of the crushing roller by the conveying section;
the dust collection device is arranged in the factory building, is connected and communicated with the dust collection cover through a pipeline, and is used for collecting dust generated when slag scooping materials are poured and accelerating the airflow velocity in the discharging ditch to improve the cooling rate of the slag scooping materials on the conveying section;
the discharging end of the output extension section is connected with a feeding port of the grinder; the discharging hole of the grinder is connected with the feeding hole of the lifter; and
the discharging port of the lifting machine is connected with the feeding port of the storage bin;
the crushing roller is arranged at the tail end of the conveying section;
the discharging opening of the dust collecting device is positioned above the transportation section so as to discharge dust collected by the dust collecting device onto the transportation section.
2. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that:
the length direction of factory building is followed to the ditch of unloading, just the ditch of unloading the length with the inside length of factory building and the length of transport section is the same, the ditch of unloading sets up below ± 0.00 plane, the ditch degree of depth of unloading is 3m, and length is 36m, the ditch volume of unloading is 300 m.
3. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that: the distance between the lower edge of the crushing roller and the conveying plane of the heavy scraper conveyor is 300mm to 350mm.
4. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that: the output extension section extends upwards and then is connected with a feed inlet of the grinding machine through a chute, and sealing covers are arranged on the output extension section and the chute.
5. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that: the top of the storage bin is also provided with a material level gauge, and the volume of the storage bin is 500m to 700 m.
6. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that: the high temperature resistance of the heavy scraper conveyor is more than or equal to 1000 ℃, and the conveying capacity of the heavy scraper conveyor is 80T/h.
7. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 1, characterized in that: the factory building door is an electric rolling door, the door remote controller is carried by a driver of a transport vehicle, and the door remote controller is in communication connection with a driving device of the electric rolling door so as to control the opening and closing of the factory building door.
8. The broken recycling system of the slag scooping material of the electrolytic tank according to claim 5, characterized in that: the automatic grinding machine comprises a storage bin, a heavy scraper conveyor, a roller driving device, a dust collecting device, a grinding machine and a lifting machine, and is characterized by further comprising a controller which is respectively in communication connection with the heavy scraper conveyor, the roller driving device, the dust collecting device, the grinding machine and the lifting machine, wherein the controller is used for controlling the working states of the heavy scraper conveyor, the roller driving device, the dust collecting device, the grinding machine and the lifting machine, the controller is also in communication connection with a material level gauge, the material level gauge transmits material height information in the storage bin to the controller, and when the material level gauge monitors that the material height in the storage bin reaches a preset height, the controller is used for closing the heavy scraper conveyor, the roller driving device, the grinding machine and the lifting machine.
9. A method for crushing and recycling slag materials of an electrolytic tank is characterized by comprising the following steps of: the broken recycling system for the slag scooping material of the electrolytic tank according to any one of claims 1 to 8, comprising the following steps:
step one: loading the slag scooped out of the electrolytic tank into a transport vehicle for transportation, opening the plant door when the transport vehicle reaches the plant door, closing the plant door after entering the plant, opening the dust collecting device, dumping the slag scooped out onto the transport section in the discharging ditch by the transport vehicle, leaving the transport vehicle, opening the plant door when the transport vehicle moves to the plant door, and closing the plant door after moving out of the plant;
step two: the slag scooping material is cooled in the discharging ditch for 3.5-4.5 hours, and the dust collecting device is used for collecting dust generated when the slag scooping material is poured and accelerating the airflow velocity in the discharging ditch to improve the cooling rate of the slag scooping material on the conveying section;
step three: starting the heavy scraper conveyor, crushing the slag skimming material by the crushing roller, and conveying the crushed slag skimming material to the grinding machine;
step four: the crushed slag skimming material is ground into powdery materials through the grinder, and then is conveyed into the storage bin for storage through the hoister.
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| CN112717482A (en) * | 2020-11-27 | 2021-04-30 | 中国恩菲工程技术有限公司 | A subside device and processing system for zinc electrodeposition anode mud is handled |
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