CN114394625A - Method for recycling iron from red mud - Google Patents
Method for recycling iron from red mud Download PDFInfo
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- CN114394625A CN114394625A CN202210045630.5A CN202210045630A CN114394625A CN 114394625 A CN114394625 A CN 114394625A CN 202210045630 A CN202210045630 A CN 202210045630A CN 114394625 A CN114394625 A CN 114394625A
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- red mud
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- work box
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/0018—Mixed oxides or hydroxides
- C01G49/0027—Mixed oxides or hydroxides containing one alkali metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/20—Disintegrating by grating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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- 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
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
- B02C23/12—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
Abstract
The invention relates to the technical field of red mud recycling, in particular to a method for recycling iron from red mud, which aims at solving the problem that the red mud cannot be recycled in the prior art, and provides the following scheme, wherein the method comprises the steps of S1, airing the red mud taken back, grinding the red mud into powder, and filling the powder into a clean bag for later use; s2, weighing a certain mass of red mud pretreated by S1, putting the red mud into a beaker, adding a certain amount of 32% sodium hydroxide solution, stirring the mixture by using a glass rod to ensure that the red mud is fully contacted with the 32% sodium hydroxide solution, standing the mixture for 60 minutes, adding a certain amount of sodium hypochlorite (the effective chlorine is 11%), putting the beaker into a water bath kettle, heating the beaker for different temperatures and times, taking the beaker out, and cooling the temperature to room temperature.
Description
Technical Field
The invention relates to the technical field of red mud recycling, in particular to a method for recycling iron from red mud.
Background
Red mud is a solid waste discharged in the industrial production process of alumina. Iron is mainly composed of Fe2O3 in red mud, and contains a small amount of FeO, and the ratio of the former to the latter is almost 9: 1.
In view of the current research situation of recovering iron from red mud, there are two methods: firstly, roasting reduction-magnetic separation, the method has the main problems of high energy consumption, low iron magnetic separation efficiency, no consideration of the recovery problem of other valuable metals in red mud, uneconomical process and possible secondary resource waste and secondary pollution; and secondly, red mud reduction ironmaking, wherein iron and the like are effectively recovered by the red mud reduction ironmaking-slag leaching process, but the red mud content is required to be high, namely, only Bayer process red mud can be treated, and sintering process red mud is difficult to recover by reduction through the process.
Therefore, it is necessary to develop a method for recovering and utilizing iron from red mud to solve the above problems.
Disclosure of Invention
The invention provides a method for recycling iron from red mud, which solves the problem that the iron in the red mud cannot be recycled in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a method for recycling iron from red mud comprises the following steps:
s1, drying the red mud, grinding the dried red mud into powder, and filling the powder into a clean bag for later use;
s2, weighing a certain mass of red mud pretreated by S1, putting the red mud into a beaker, adding a certain amount of 32% sodium hydroxide solution, stirring the red mud and the 32% sodium hydroxide solution by using a glass rod, fully contacting the red mud and the 32% sodium hydroxide solution, standing the mixture for 60 minutes, adding a certain amount of sodium hypochlorite (the available chlorine is 11%), putting the beaker into a water bath pot, heating the beaker at different temperatures and times, taking out the beaker, when the temperature is reduced to room temperature, taking upper layer liquid in the beaker, carrying out centrifugal separation for 3 minutes, centrifuging the upper layer purple black liquid to obtain an upper layer purple black liquid, namely a sodium ferrate solution product, and putting the upper layer purple black liquid into a brown bottle for storage for later use;
s3, preparing a potassium ferrate crude product: because ferrate is more soluble in caustic soda than in caustic potash, potassium ferrate solids can be prepared by precipitating the ferrate from a caustic soda solution with saturated potassium hydroxide. Taking a certain volume of crude sodium ferrate product, adding a certain amount of saturated potassium hydroxide solution, and treating the crude sodium ferrate product under a certain condition to obtain a crude potassium ferrate product;
s4, on the basis of preparing the potassium ferrate crude product, removing salts, alkalis and other substances contained in the crude product, purifying the potassium ferrate, finally removing residual other substances by using an organic solvent, and drying and storing.
The device for recycling iron from red mud comprises a base, wherein a working box is mounted at the top of the base, a conveying box is mounted at the center inside the working box, a conveying mechanism is mounted inside the conveying box, two grinding mechanisms and two filtering mechanisms are mounted inside the working box, the two grinding mechanisms and the two filtering mechanisms are respectively located on two sides of the conveying box, the two filtering mechanisms are respectively located below the two grinding mechanisms, and heating mechanisms are mounted on outer walls of two sides of the working box.
Preferably, grind the mechanism including installing the mounting panel and seting up at the inside circular grinding mouth of mounting panel in transport case one side and work box one side inner wall junction, the toper grinding groove with circular grinding mouth intercommunication is seted up at the top of mounting panel, the top of work box is rotated and is connected with hollow column spinner, the one end of hollow column spinner extends to the inside of work box and is located circular grinding mouth, the externally mounted of hollow column spinner with toper grinding groove complex grinding stone, the externally mounted of hollow column spinner has a plurality of abrasive disks and a plurality of play wind covers, and a plurality of abrasive disks and a plurality of play wind cover crisscross distribution each other set up, and is a plurality of the abrasive disk all uses with circular grinding mouth cooperation.
Preferably, heating mechanism is including installing at the outside heating cabinet and the air-blower of work box, the air intake of air-blower passes through pipeline and heating cabinet intercommunication, the internally mounted of heating cabinet has a plurality of heater strips, the connecting pipe is installed at the top of heating cabinet, and the one end intercommunication of connecting piece and hollow column spinner is passed through to the one end of connecting pipe.
Preferably, two discharging pipes are installed at the bottom of the working box, two guide plates for guiding the materials to the inside of the two discharging pipes are installed at the bottom of the working box, two feeding boxes are installed at the top of the working box, and the two feeding boxes are located on two sides of the conveying box.
Preferably, filtering mechanism is including seting up the bar mouth in work box one side and seting up the feed inlet in transport case one side, the spring is all installed, two to the bottom inner wall of bar mouth and feed inlet the filter screen is installed jointly at the top of spring, the bar mouth is passed to the one end of filter screen and extends to the outside of work box, the externally mounted of work box has the mechanism of beating that is used for beating the filter screen, the bottom of hollow column spinner passes the filter screen and rotates with the bottom inner wall of work box to be connected.
Preferably, conveying mechanism is including installing the auger delivery pole in the transport case inside and installing the rotating electrical machines that is used for driving the auger delivery pole to rotate in the base bottom, the one end of auger delivery pole extends to the top of work box, first gear is installed to the one end that the auger delivery pole is located the work box outside, hollow column spinner is located the outside one end of work box and installs the second gear with first gear engagement.
Preferably, beat the mechanism including hinge at the outside connecting rod of work box and install the pole of beating in connecting rod one end, beat the one end of pole and install the ball of beating with the laminating of filter screen bottom, the outside of work box is rotated and is connected with the rotary rod, the eccentric wheel is installed to the one end of rotary rod, and the other end of rotary rod extends to the inside of work box, first bevel gear is installed to the one end that the rotary rod is located the work box inside, the externally mounted of hollow column spinner has the second bevel gear with first bevel gear meshing, the one end sliding connection of beating the pole is in the outside of eccentric wheel.
The invention has the technical effects and advantages that:
1. can carry out twice grinding to the red mud through the grinding mechanism that is equipped with, and can carry out drying process to the red mud at the in-process that grinds, avoid the red mud to appear moist phenomenon at the in-process that carries out recycle, red mud after the second time grinds can filter through filtering mechanism, the inside that the large granule after the filtration can enter into the transport case through the feed inlet, then under the drive of screw conveyor pole, carry the one side of discharge gate, then enter into the inside in toper grinding groove through the discharge gate, thereby grind once more, thereby the quality that the red mud ground has been improved.
2. When the filtering mechanism filters, the beating rod can do reciprocating circular motion up and down under the rotation of the eccentric wheel, so that the filtering net can be beaten in reciprocating circular motion, and the filtering effect of the filtering net is improved.
3. The invention not only realizes the recovery and utilization of iron in the red mud and reduces the pollution of the red mud, but also prepares a novel low-cost high-efficiency multifunctional water purifying agent while recovering and utilizing the iron in the red mud.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1 according to the present invention.
Fig. 4 is an enlarged schematic view of the structure at C in fig. 1 according to the present invention.
Fig. 5 is an enlarged schematic view of the structure of fig. 1 at D according to the present invention.
In the figure: 1. a base; 2. a work box; 3. a delivery box; 4. mounting a plate; 5. grinding stones; 6. a spin column; 7. a rotating electric machine; 8. a second gear; 9. a first gear; 10. a heating box; 11. a blower; 12. a filter screen; 13. an eccentric wheel; 14. a grinding disk; 15. an air outlet cover; 16. grinding the round grinding port; 17. a strip-shaped opening; 18. a spring; 19. a connecting rod; 20. a knock rod; 21. a screw conveying rod; 22. rotating the rod; 23. a first bevel gear; 24. a second bevel gear; 25. and (4) feeding a material inlet.
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 invention provides a method for recycling iron from red mud as shown in figures 1-5, which comprises the following steps:
s1, drying the red mud, grinding the dried red mud into powder, and filling the powder into a clean bag for later use;
s2, weighing a certain mass of red mud pretreated by S1, putting the red mud into a beaker, adding a certain amount of 32% sodium hydroxide solution, stirring the red mud and the 32% sodium hydroxide solution by using a glass rod, fully contacting the red mud and the 32% sodium hydroxide solution, standing the mixture for 60 minutes, adding a certain amount of sodium hypochlorite (the available chlorine is 11%), putting the beaker into a water bath pot, heating the beaker at different temperatures and times, taking out the beaker, when the temperature is reduced to room temperature, taking upper layer liquid in the beaker, carrying out centrifugal separation for 3 minutes, centrifuging the upper layer purple black liquid to obtain an upper layer purple black liquid, namely a sodium ferrate solution product, and putting the upper layer purple black liquid into a brown bottle for storage for later use;
s3, preparing a potassium ferrate crude product: because ferrate is more soluble in caustic soda than in caustic potash, potassium ferrate solids can be prepared by precipitating the ferrate from a caustic soda solution with saturated potassium hydroxide. Taking a certain volume of crude sodium ferrate product, adding a certain amount of saturated potassium hydroxide solution, and treating the crude sodium ferrate product under a certain condition to obtain a crude potassium ferrate product;
s4, on the basis of preparing the potassium ferrate crude product, removing salts, alkalis and other substances contained in the crude product, purifying the potassium ferrate, finally removing residual other substances by using an organic solvent, and drying and storing.
The utility model provides a recovery unit of recycle iron from red mud of method of recycle iron from red mud, including base 1, work box 2 is installed at the top of base 1, the inside center department of work box 2 installs delivery box 3, the internally mounted of delivery box 3 has conveying mechanism, the internally mounted of work box 2 has two to grind mechanism and two filter mechanism, and two grind mechanism and two filter mechanism are located the both sides of delivery box 3 respectively, two filter mechanism are located the below of two grinding mechanisms respectively, heating mechanism is all installed to the both sides outer wall of work box 2.
The grinding mechanism comprises a mounting plate 4 and a circular grinding port 16, wherein the mounting plate 4 is mounted at the joint of one side of the conveying box 3 and the inner wall of one side of the working box 2, the circular grinding port 16 is formed in the mounting plate 4, a conical grinding groove communicated with the circular grinding port 16 is formed in the top of the mounting plate 4, the top of the working box 2 is rotatably connected with a hollow rotary column 6, one end of the hollow rotary column 6 extends into the working box 2 and is positioned in the circular grinding port 16, a grinding stone 5 matched with the conical grinding groove is mounted on the outer portion of the hollow rotary column 6, a plurality of grinding discs 14 and a plurality of air outlet hoods 15 are mounted on the outer portion of the hollow rotary column 6, the plurality of grinding discs 14 and the plurality of air outlet hoods 15 are distributed in a mutually staggered mode, the plurality of grinding discs 14 are matched with the circular grinding port 16 for use, the red mud entering the working box 2 can be firstly ground through the grinding stone 5, and the red mud ground by the grinding stone 5 can enter the circular grinding port 16, the second grinding is performed by a plurality of grinding disks 14.
The heating mechanism is including installing heating cabinet 10 and the air-blower 11 in work box 2 outside, the air intake of air-blower 11 passes through pipeline and heating cabinet 10 intercommunication, the internally mounted of heating cabinet 10 has a plurality of heater strips, the connecting pipe is installed at the top of heating cabinet 10, and the one end of connecting pipe passes through the connecting piece and communicates with the one end of hollow column spinner 6, air-blower 11 can be with outside wind suction to the inside of heating cabinet 10, the wind that enters into heating cabinet 10 inside can heat through a plurality of heater strips, then enter into the connecting pipe, the hot-blast inside that enters into in the connecting pipe can enter into hollow column spinner 6, then flow out through a plurality of play wind covers 15, can carry out drying process to red mud on one side at the in-process that grinds like this, avoid red mud to appear moist phenomenon in the in-process of carrying out recycle.
Two discharging pipes are installed at the bottom of the working box 2, two guide plates used for guiding the materials to the inside of the two discharging pipes are installed at the bottom of the working box 2, two feeding boxes are installed at the top of the working box 2, and the two feeding boxes are located on two sides of the conveying box 3.
The filter mechanism is including seting up at the bar mouth 17 of work box 2 one side and seting up at the feed inlet 25 of delivery box 3 one side, spring 18 is all installed to the bottom inner wall of bar mouth 17 and feed inlet 25, filter screen 12 is installed jointly at the top of two springs 18, bar mouth 17 is passed to the one end of filter screen 12, and extend to the outside of work box 2, the externally mounted of work box 2 has the mechanism of beating that is used for beating filter screen 12, the bottom of hollow column spinner 6 is passed filter screen 12 and is rotated with the bottom inner wall of work box 2 and be connected, red mud after twice grinding can drop on filter screen 12, filter through filter screen 12, avoid containing great particulate matter in the red mud after the grinding like this.
Conveying mechanism is including installing at the inside screw conveyor 21 of transfer case 3 and installing in base 1 bottom and being used for driving screw conveyor 21 to carry out the rotating electrical machines 7 that rotate, and the one end of screw conveyor 21 extends to the top of work box 2, and first gear 9 is installed to the one end that screw conveyor 21 is located the work box 2 outside, and hollow column spinner 6 is located the outside one end of work box 2 and installs the second gear 8 with first gear 9 meshing.
The beating mechanism comprises a connecting rod 19 hinged outside the work box 2 and a beating rod 20 arranged at one end of the connecting rod 19, one end of the beating rod 20 is provided with a beating ball attached to the bottom of the filter screen 12, the outside of the work box 2 is rotatably connected with a rotating rod 22, one end of the rotating rod 22 is provided with an eccentric wheel 13, and the other end of the rotating rod 22 extends to the inside of the working box 2, one end of the rotating rod 22, which is positioned inside the working box 2, is provided with a first bevel gear 23, the outside of the hollow rotating column 6 is provided with a second bevel gear 24 which is meshed with the first bevel gear 23, one end of the tapping rod 20 is connected with the outside of the eccentric wheel 13 in a sliding way, when the filtering mechanism filters, the beating rod 20 is driven to do reciprocating motion up and down by the rotation of the eccentric wheel 13, so that the filter screen 12 can be beaten in a reciprocating motion, and the filtering effect of the filter screen 12 is improved.
The working principle of the invention is as follows: in the specific implementation process, the red mud taken back is firstly dried, then the red mud is poured into the working box 2 through the feeding box, the rotating motor 7 is started, the spiral conveying rod 21 is driven to rotate in the rotating process of the rotating motor 7, so that the first gear 9 rotates, the two hollow rotating columns 6 rotate under the meshing of the first gear 9 and the second gear 8, at the moment, the grinding stone 5 and the plurality of grinding discs 14 rotate, the red mud entering the working box 2 is firstly ground through the grinding stone 5, the red mud ground through the grinding stone 5 enters the circular grinding opening 16 and is ground for the second time through the plurality of grinding discs 14, in the process of grinding for the second time, the air blower 11 pumps external air into the heating box 10, and the air entering the heating box 10 is heated through the plurality of heating wires, then the red mud enters the connecting pipe, hot air entering the connecting pipe enters the hollow rotary column 6 and flows out through the air outlet covers 15, so that the red mud can be dried while being ground, the phenomenon that the red mud is wet during recycling is avoided, the red mud after being ground twice falls onto the filter screen 12 and is filtered through the filter screen 12, so that the ground red mud is prevented from containing large particles, when the filter screen 12 filters, the hollow rotary column 6 drives the first bevel gear 23 to rotate, the rotary rod 22 meshed with the second bevel gear 24 through the first bevel gear 23 rotates, the eccentric wheel 13 is driven to rotate during the rotation of the rotary rod 22, and the beating rod 200 can do reciprocating circular motion up and down under the rotation of the eccentric wheel 13, therefore, the filter screen 12 can be knocked in a reciprocating cycle manner, the filtering effect of the filter screen 12 is improved, large particles after filtering can enter the conveying box 3 through the feeding hole 25, then are conveyed to one side of the discharging hole under the driving of the spiral conveying rod 21, then enter the conical grinding groove through the discharging hole, and are ground again, the grinding quality of the red mud is improved, the red mud after grinding can flow out of the discharging pipe under the action of the material guide plate and then is filled into a clean bag for standby, a certain mass of red mud after pretreatment is weighed and put into a beaker, then a certain amount of 32% sodium hydroxide solution is added, a glass rod is used for stirring, the red mud is fully contacted with the 32% sodium hydroxide solution, the red mud is placed for 60 minutes, a certain amount of sodium hypochlorite (the effective chlorine is 11%) is added, putting the beaker into a water bath kettle, heating for different temperatures and times, then taking out the beaker, taking the upper layer liquid in the beaker for centrifugal separation for 3min when the temperature is reduced to room temperature, obtaining the upper layer purple black liquid after centrifugation, namely a sodium ferrate solution product, putting the upper layer purple black liquid into a brown bottle for storage for later use, and preparing a potassium ferrate crude product: because ferrate is more soluble in caustic soda than in caustic potash, potassium ferrate solids can be prepared by precipitating the ferrate from a caustic soda solution with saturated potassium hydroxide. Taking a certain volume of crude sodium ferrate product, adding a certain amount of saturated potassium hydroxide solution, treating the crude sodium ferrate product under a certain condition to obtain a crude potassium ferrate product, purifying the potassium ferrate product when removing salts, alkalis and other substances contained in the crude sodium ferrate product on the basis of preparing the crude potassium ferrate product, finally removing residual other substances by using an organic solvent, and drying and storing.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. A method for recycling iron from red mud is characterized by comprising the following steps:
s1, drying the red mud, grinding the dried red mud into powder, and filling the powder into a clean bag for later use;
s2, weighing a certain mass of red mud pretreated by S1, putting the red mud into a beaker, adding a certain amount of 32% sodium hydroxide solution, stirring the red mud and the 32% sodium hydroxide solution by using a glass rod, fully contacting the red mud and the 32% sodium hydroxide solution, standing the mixture for 60 minutes, adding a certain amount of sodium hypochlorite (the available chlorine is 11%), putting the beaker into a water bath pot, heating the beaker at different temperatures and times, taking out the beaker, when the temperature is reduced to room temperature, taking upper layer liquid in the beaker, carrying out centrifugal separation for 3 minutes, centrifuging the upper layer purple black liquid to obtain an upper layer purple black liquid, namely a sodium ferrate solution product, and putting the upper layer purple black liquid into a brown bottle for storage for later use;
s3, preparing a potassium ferrate crude product: because ferrate is more soluble in caustic soda than in caustic potash, potassium ferrate solids can be prepared by precipitating the ferrate from a caustic soda solution with saturated potassium hydroxide. Taking a certain volume of crude sodium ferrate product, adding a certain amount of saturated potassium hydroxide solution, and treating the crude sodium ferrate product under a certain condition to obtain a crude potassium ferrate product;
s4, on the basis of preparing the potassium ferrate crude product, removing salts, alkalis and other substances contained in the crude product, purifying the potassium ferrate, finally removing residual other substances by using an organic solvent, and drying and storing.
2. The device for recycling iron from red mud, which is suitable for the method for recycling iron from red mud according to claim 1, comprises a base (1), wherein a working box (2) is installed at the top of the base (1), a conveying box (3) is installed at the center inside the working box (2), a conveying mechanism is installed inside the conveying box (3), two grinding mechanisms and two filtering mechanisms are installed inside the working box (2), the two grinding mechanisms and the two filtering mechanisms are respectively located on two sides of the conveying box (3), the two filtering mechanisms are respectively located below the two grinding mechanisms, and heating mechanisms are installed on outer walls of two sides of the working box (2).
3. The recovery device for recovering and utilizing iron from red mud according to claim 2, wherein: the grinding mechanism comprises a mounting plate (4) arranged at the joint of one side of the conveying box (3) and the inner wall of one side of the working box (2) and a circular grinding port (16) arranged in the mounting plate (4), the top of the mounting plate (4) is provided with a conical grinding groove communicated with a circular grinding port (16), the top of the working box (2) is rotatably connected with a hollow rotating column (6), one end of the hollow rotating column (6) extends into the working box (2) and is positioned in a circular grinding port (16), the outside of the hollow rotating column (6) is provided with a grinding stone (5) matched with the conical grinding groove, a plurality of grinding discs (14) and a plurality of air outlet covers (15) are arranged outside the hollow rotary column (6), and a plurality of grinding discs (14) and a plurality of air outlet covers (15) are arranged in a staggered manner, and the plurality of grinding discs (14) are matched with a circular grinding opening (16) for use.
4. The recovery device for recovering and utilizing iron from red mud according to claim 2, wherein: heating mechanism is including installing heating cabinet (10) and air-blower (11) in work box (2) outside, the air intake of air-blower (11) passes through pipeline and heating cabinet (10) intercommunication, the internally mounted of heating cabinet (10) has a plurality of heater strips, the connecting pipe is installed at the top of heating cabinet (10), and the one end intercommunication of connecting piece and hollow column spinner (6) is passed through to the one end of connecting pipe.
5. The recovery device for recovering and utilizing iron from red mud according to claim 2, wherein: two discharging pipes are installed at the bottom of the working box (2), two guide plates used for guiding materials to the inside of the two discharging pipes are installed at the bottom of the working box (2), two feeding boxes are installed at the top of the working box (2), and the two feeding boxes are located on two sides of the conveying box (3).
6. The recovery device for recovering and utilizing iron from red mud according to claim 3, wherein: the utility model discloses a filter structure, including offering bar mouth (17) in work box (2) one side and offering feed inlet (25) in transport case (3) one side, spring (18), two are all installed to the bottom inner wall of bar mouth (17) and feed inlet (25) the filter screen (12) are installed jointly at the top of spring (18), the one end of filter screen (12) is passed bar mouth (17) and is extended to the outside of work box (2), the externally mounted of work box (2) has the mechanism of beating that is used for beating filter screen (12), the bottom of hollow column spinner (6) is passed filter screen (12) and is connected with the bottom inner wall rotation of work box (2).
7. The recovery device for recovering and utilizing iron from red mud according to claim 3, wherein: conveying mechanism carries out rotatory rotating electrical machines (7) including installing at conveying case (3) inside auger delivery pole (21) and installing in base (1) bottom and being used for driving auger delivery pole (21), the one end of auger delivery pole (21) extends to the top of work box (2), auger delivery pole (21) are located the outside one end of work box (2) and install first gear (9), hollow column spinner (6) are located the outside one end of work box (2) and install second gear (8) with first gear (9) meshing.
8. The recovery device for recovering and utilizing iron from red mud according to claim 6, wherein: the utility model discloses a hollow rotary column, including beating the mechanism and installing at the outside of connecting rod (2) connecting rod (19) and beating pole (20) of beating of connecting rod (19) one end, beat the one end of pole (20) and install the ball of beating of laminating bottom filter screen (12), the outside of work box (2) is rotated and is connected with rotary rod (22), eccentric wheel (13) are installed to the one end of rotary rod (22), and the other end of rotary rod (22) extends to the inside of work box (2), first bevel gear (23) are installed to the one end that rotary rod (22) are located work box (2) inside, the externally mounted of hollow rotary column (6) has second bevel gear (24) with first bevel gear (23) meshing, the one end sliding connection of beating pole (20) is in the outside of eccentric wheel (13).
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| CN202210045630.5A CN114394625A (en) | 2022-01-15 | 2022-01-15 | Method for recycling iron from red mud |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115138439A (en) * | 2022-09-05 | 2022-10-04 | 兴化市热华能源有限公司 | Production and processing device and method for carbonized rice hull ash |
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