CN206985741U - A kind of device that PAFC is prepared using hot metallurgical slag - Google Patents
A kind of device that PAFC is prepared using hot metallurgical slag Download PDFInfo
- Publication number
- CN206985741U CN206985741U CN201720621184.2U CN201720621184U CN206985741U CN 206985741 U CN206985741 U CN 206985741U CN 201720621184 U CN201720621184 U CN 201720621184U CN 206985741 U CN206985741 U CN 206985741U
- Authority
- CN
- China
- Prior art keywords
- inlet
- outlet
- cooling
- mixed material
- ferric chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002893 slag Substances 0.000 title claims abstract description 53
- 238000002386 leaching Methods 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 230000032683 aging Effects 0.000 claims abstract description 17
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 17
- 238000007664 blowing Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 117
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 41
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 41
- 239000010881 fly ash Substances 0.000 claims description 26
- 239000000706 filtrate Substances 0.000 claims description 25
- 239000000047 product Substances 0.000 claims description 23
- 238000000227 grinding Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 12
- 238000004321 preservation Methods 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 39
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 229910052742 iron Inorganic materials 0.000 description 19
- 229910052782 aluminium Inorganic materials 0.000 description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 17
- 238000000034 method Methods 0.000 description 14
- 238000005189 flocculation Methods 0.000 description 13
- 230000016615 flocculation Effects 0.000 description 13
- 238000002156 mixing Methods 0.000 description 12
- 238000005507 spraying Methods 0.000 description 11
- 239000012263 liquid product Substances 0.000 description 8
- 238000001035 drying Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000012265 solid product Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052759 nickel Inorganic materials 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052595 hematite Inorganic materials 0.000 description 1
- 239000011019 hematite Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- -1 poly aluminium iron chloride Chemical compound 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000012629 purifying agent Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The utility model provides a kind of device that PAFC is prepared using hot metallurgical slag, the device includes blowing device, attemperator, cooling device, fine mill, leaching device, filter and the polymerization aging device being sequentially connected, the apparatus structure is simple, it is easily fabricated, can be low using the heat of hot metallurgical slag, energy consumption.
Description
Technical Field
The utility model belongs to the technical field of resource regeneration and utilization technique and specifically relates to an utilize metallurgical sediment of thermal state to prepare device of poly aluminium iron chloride.
Background
The iron ore resources in China have the main characteristics of 'poor', 'fine' and 'impurity', and the average iron grade is 32%, which is 11% lower than the world average iron grade. Iron ore is used as a main raw material in the iron and steel industry, and can be smelted in a blast furnace after being subjected to mineral separation and enrichment. With the rapid development of the steel industry, some easily selected iron ores and rich ores with high iron grade are continuously consumed. Therefore, how to effectively develop and utilize iron-containing resources such as some low-grade refractory iron ores such as bauxite, high-phosphorus oolitic hematite and the like and some industrial solid wastes such as bayer process red mud, copper slag, nickel slag, lead-zinc smelting slag and the like becomes a main research direction.
There are processes for producing metallized pellets by treating these iron-containing resources with a tunnel kiln, a rotary kiln, a shaft furnace or a rotary hearth furnace and then melting and separating to produce molten iron. The temperature required by the processes is high, only iron element can be recovered from iron-containing resources, and the hot melt slag generated by the process is not fully utilized, so that the process becomes secondary solid waste.
The temperature of the thermal state metallurgical slag is about 1500 ℃, the thermal state metallurgical slag carries a large amount of physical heat, however, the heat is not effectively utilized in the cooling process, and the waste of energy is caused.
Polyaluminum ferric chloride is abbreviated as PAFC, and is an inorganic polymeric flocculant. The flocculant not only has excellent flocculation performance and strong electric neutralization effect of polyaluminium chloride (PAC), but also has the characteristics of strong adsorbability and high precipitation speed of polyferric chloride (PFC). At present, the water purifying agent used in China mainly comprises an inorganic flocculant, the consumption is large, the water purifying capacity is weak, and an aluminum polymeric agent and an iron polymeric agent are important substitute products in the field. The flocculant is in great demand for domestic industrial water, urban water supply and sewage treatment, so that the polyaluminum ferric chloride has great market potential.
Fly ash is a solid waste discharged from coal-fired power plants. The fly ash stockpiling not only occupies a large amount of land, but also pollutes the environment. Many useful components in the fly ash can not be reasonably utilized, and the waste of resources is caused.
In summary, it is a technical problem to be solved by those skilled in the art to find a device capable of treating hot metallurgical slag, recovering aluminum elements, and realizing comprehensive utilization of resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device for preparing polyaluminium ferric chloride by utilizing thermal state metallurgical slag aiming at the defects of the prior art.
In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:
an embodiment of the utility model provides a device for preparing polyaluminum ferric chloride by utilizing thermal-state metallurgical slag, which comprises a blowing device, a heat preservation device, a cooling device, a grinding device, a leaching device, a filtering device and a polymerization aging device which are connected in sequence, wherein,
the heat preservation device comprises a fly ash inlet and a mixed material outlet, and the injection device is connected with the fly ash inlet;
the cooling device comprises a mixed material inlet and a cooling material outlet, and the mixed material inlet is connected with the mixed material outlet;
the levigating device comprises a cooling mixed material inlet and a levigating material outlet, and the cooling mixed material inlet is connected with the cooling material outlet;
the leaching device comprises a levigated material inlet and a leached product outlet, and the levigated material inlet is connected with the levigated material outlet;
the filtering device comprises a leaching product inlet, a filtrate outlet and a leaching residue outlet, and the leaching product inlet is connected with the leaching product outlet;
the polymerization and aging device comprises a leachate inlet and a product outlet, wherein the leachate inlet is connected with the filtrate outlet.
Furthermore, the injection device comprises an injection pipeline, a material storage tank and an injection mechanism which are sequentially arranged, and the injection pipeline is connected with the fly ash inlet.
Further, the cooling device comprises an accommodating cavity for the object to be cooled and a cooling medium loop, and the cooling medium loop is arranged in the accommodating cavity for the object to be cooled.
Furthermore, the cooling medium loop is spirally arranged in the accommodating cavity of the object to be cooled.
Further, the cooling device comprises a to-be-cooled object accommodating cavity and a cooling medium loop, and the cooling medium loop is arranged on the cavity wall of the to-be-cooled object accommodating cavity.
The utility model has the advantages that:
1. the device for preparing the polyaluminum ferric chloride provided by the utility model has simple structure and is easy to manufacture.
2. The heat of the thermal state metallurgical slag can be utilized, and the energy consumption is low.
Drawings
For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
FIG. 1 is a schematic view of an apparatus for preparing polyaluminum ferric chloride according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for preparing polyaluminum ferric chloride using an apparatus according to an embodiment of the present invention;
wherein,
1 … heat preservation device, 2 … blowing device, 3 … cooling device, 4 … grinding device, 5 … leaching device, 6 … filtering device and 7 … polymerization aging device;
11 … coal ash inlet, 12 … mixed material outlet, 21 … blowing pipeline outlet, 31 … mixed material inlet, 32 … cooling material outlet, 41 … cooling mixed material inlet, 42 … ground material outlet, 51 … ground material inlet, 52 … leaching product outlet, 61 … leaching product inlet, 62 … filtrate outlet, 63 … leaching slag outlet, 71 … leachate inlet and 72 … product outlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
An embodiment of the utility model provides a device for preparing polyaluminium chloride, as shown in figure 1, which comprises a spraying device 2, a heat preservation device 1, a cooling device 3, a grinding device 4, a leaching device 5, a filtering device 6 and a polymerization aging device 7 which are connected in sequence, wherein the heat preservation device 1 comprises a fly ash inlet 11 and a mixed material outlet 12, the spraying device 2 comprises a material storage tank and a spraying pipeline 21, the spraying pipeline 21 is connected with the fly ash inlet 11, the materials are sprayed into the heat preservation device 1 from the storage tank through the spraying pipeline 21 under the action of gas spraying, the cooling device 3 comprises a mixed material inlet 31 and a cooled material outlet 32, the mixed material inlet 31 is connected with the mixed material outlet 12, the grinding device 4 comprises a cooled mixed material inlet 41 and a ground material outlet 42, and the cooled mixed material inlet 41 is connected with the cooled material outlet 32; the leaching device 5 comprises a ground material inlet 51 and a leached product outlet 52, the ground material inlet 51 is connected with the ground material outlet 42; the filtering device 6 comprises a leaching product inlet 61, a filtrate outlet 62 and a leaching residue outlet 63, wherein the leaching product inlet 61 is connected with the leaching product outlet 52; the polymerization aging apparatus 7 comprises a leachate inlet 71 and a product outlet 72, the leachate inlet 71 being connected to the filtrate outlet 62.
Preferably, the cooling device 2 includes an accommodating cavity for accommodating the object to be cooled and a cooling medium circuit, the cooling medium circuit is disposed in the accommodating cavity for accommodating the object to be cooled in a spiral manner, and the cooling medium circuit can be disposed on a cavity wall of the accommodating cavity for accommodating the object to be cooled.
In the actual use process, the material is stored in the storage tank, the material is sprayed into the heat preservation device 1 from the storage tank through the spraying pipeline 21 under the action of gas spraying, specifically, the spraying mechanism is started to output pressurized gas to the material storage tank, the pressurized gas brings the material in the material storage tank out to the spraying pipeline, and the material continues to enter the heat preservation device from the connection position of the spraying pipeline and the fly ash inlet under the action of the pressurized gas. After keeping the temperature for a certain period of time, the material enters the mixed material inlet 31 through the mixed material outlet 12 and then enters the cooling device 3, after cooling to room temperature, enters the cooled mixed material inlet 41 through the cooled material outlet 32 and then enters the grinding device 4, after grinding, the material enters the ground material inlet 51 through the ground material outlet 42 and then enters the leaching device 5, after acid leaching with hydrochloric acid, enters the leaching product inlet 61 through the leaching product outlet 52 and then enters the filtering device 6, filtering is performed to obtain filtrate, the filtrate enters the leachate inlet 71 through the leachate outlet 62 and then enters the polymerization and aging device 7, and after polymerization and aging, a polyaluminium ferric chloride liquid product is obtained and flows out through the product outlet 72.
To sum up, the utility model discloses a preparation polyaluminium ferric chloride's device has following advantage at least:
1. the device has simple structure and is easy to manufacture.
2. The heat of the thermal-state metallurgical slag is utilized, and the energy consumption is low.
The method for preparing the polyaluminum ferric chloride by utilizing the thermal-state metallurgical slag, as shown in figure 2, comprises the following steps:
1) mixing thermal state metallurgical slag with the temperature of 1300-1500 ℃ and fly ash to obtain a mixed material, wherein the mixing proportion of the mixed material is 70 parts by weight of the thermal state metallurgical slag and 35-49 parts by weight of the fly ash, and the thermal state metallurgical slag comprises one or more of red mud, laterite-nickel ore and copper slag;
2) keeping the temperature of the mixed materials for 60-90 min;
3) after the mixed material is cooled to room temperature, grinding to obtain a ground material, wherein the ground material with the granularity not higher than 0.074mm accounts for 80-85 wt%;
4) leaching the ground material with hydrochloric acid, and filtering to obtain a filtrate, wherein the concentration of the hydrochloric acid is 4-6mol/L, and the mass ratio of the volume of the hydrochloric acid to the ground material is 2:1-4: 1;
5) adding alkali liquor into the filtrate for polymerization, wherein the alkali liquor is NaOH or KOH, the concentration of the alkali liquor is 4-6mol/L, the volume ratio of the filtrate to the alkali liquor is 2:1-4:1, and aging to obtain a polyaluminum ferric chloride solution;
6) and drying the aluminum ferric chloride solution to obtain a polymeric aluminum ferric chloride solid product.
Wherein, the raw material proportion can adjust the components of the mixed materials to a range suitable for preparing the polyaluminium ferric chloride by utilizing the thermal state metallurgical slag;
the temperature is controlled to be 1300-1500 ℃, because the thermal state metallurgical slag in the temperature range has higher heat and is in a liquid state, the fly ash and the thermal state metallurgical slag can be fully and uniformly mixed, and the components of the mixed material are adjusted to be in a proper range. If the temperature is lower than the temperature range, the slag is in a semi-molten state or a solid state, and the fly ash cannot be fully mixed with the slag;
the specific parameters of the fineness of grinding are limited because the granularity is too coarse to fully react and too fine, and the energy consumption of raw material treatment is increased.
For further explanation and explanation of the present invention, reference should be made to the following specific examples, which are not intended to limit the present invention.
Example 1
The total iron mass fraction of the red mud hot-state molten slag is 1.57%, the hot-state temperature is 1300 ℃, and the red mud hot-state molten slag is prepared by mixing the following raw materials in percentage by mass: blending 70:38.5 of fly ash, keeping the temperature of the mixed material for 60min, cooling the mixed material to room temperature, grinding the mixed material to 80% of the mixed material which is not higher than 0.074mm to obtain a ground material, leaching the ground material by using 4mol/L hydrochloric acid, wherein the mass ratio of the volume of the hydrochloric acid to the ground material is 2:1, filtering the ground material, adding 5mol/L NaOH into filtrate for polymerization, wherein the volume ratio of the filtrate to the NaOH is 2:1, aging the filtrate to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying the Polymeric Aluminum Ferric Chloride (PAFC) liquid product to obtain the Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
Example 2
The total iron mass fraction of the hot molten slag of certain laterite-nickel ore is 1.83 percent, and the hot temperature is 1350 ℃. The method comprises the following steps of (1) smelting slag in a thermal state: blending the fly ash at a ratio of 70:43.4, and then keeping the temperature of the mixed material for 65 min. Cooling the mixed material to room temperature, grinding the mixed material to be not more than 0.074mm and accounting for 83 percent to obtain a ground material, leaching the ground material by using 4.5mol/L hydrochloric acid, wherein the volume ratio of the hydrochloric acid to the ground material is 2.5:1, filtering, adding 5.5mol/L KOH into filtrate for polymerization, the volume ratio of the filtrate to the KOH is 2.5:1, aging to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying to obtain a Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
Example 3
The total iron mass fraction of the hot molten slag of certain copper slag is 2.60%, and the hot temperature is 1450 ℃. The method comprises the following steps of (1) smelting slag in a thermal state: blending the fly ash 70:49, and then keeping the temperature of the mixed material for 80 min. Cooling the mixed material to room temperature, grinding the mixed material to be not more than 0.074mm and accounting for 85 percent to obtain a ground material, leaching the ground material by using 4.5mol/L hydrochloric acid, wherein the volume ratio of the hydrochloric acid to the ground material is 2.5:1, then filtering, adding 5mol/L NaOH into filtrate for polymerization, the volume ratio of the filtrate to the NaOH is 2.5:1, aging to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying to obtain a Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
Example 4
Mixing red mud thermal state metallurgical slag with the temperature of 1400 ℃ with fly ash to obtain a mixed material, wherein the total iron mass fraction of the red mud thermal state metallurgical slag is 1.57%, the mixing proportion of the mixed material is 70 parts by weight of the thermal state metallurgical slag, 43.4 parts by weight of the fly ash, keeping the temperature of the mixed material for 70min, cooling the mixed material to room temperature, grinding the mixed material until the mixed material is not higher than 0.074mm and accounts for 83% to obtain a ground material, leaching the ground material with 5mol/L hydrochloric acid, wherein the volume ratio of the hydrochloric acid to the ground material is 3:1, filtering, adding 5mol/L KOH into filtrate for polymerization, the volume ratio of the filtrate to the KOH is 3:1, aging to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying to obtain a Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
Example 5
Mixing hot-state metallurgical slag of the laterite-nickel ore at 1300 ℃ with fly ash to obtain a mixed material, wherein the total iron mass fraction of the hot-state metallurgical slag of the laterite-nickel ore is 1.83%, the mixing proportion of the mixed material is 70 parts by weight of the hot-state metallurgical slag and 35 parts by weight of the fly ash, keeping the temperature of the mixed material for 60min, cooling the mixed material to room temperature, grinding the mixed material until the mixed material is not higher than 0.074mm and accounts for 80% to obtain a ground material, leaching the ground material with 4mol/L hydrochloric acid, wherein the volume ratio of the hydrochloric acid to the ground material is 2:1, filtering, adding 4mol/L NaOH into filtrate for polymerization, wherein the volume ratio of the filtrate to the NaOH is 2:1, aging to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying to obtain a Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
Example 6
Mixing thermal-state metallurgical slag of copper slag at 1500 ℃ with fly ash to obtain a mixed material, wherein the total iron mass fraction of the thermal-state metallurgical slag of the copper slag is 2.60%, the mixing proportion of the mixed material is 70 parts by weight of the thermal-state metallurgical slag and 49 parts by weight of the fly ash, keeping the temperature of the mixed material for 90min, cooling the mixed material to room temperature, grinding the mixed material until the mixed material is not higher than 0.074mm and accounts for 85% to obtain a ground material, leaching the ground material with 6mol/L hydrochloric acid, wherein the volume ratio of the hydrochloric acid to the ground material is 4:1, filtering, adding 6mol/L KOH into filtrate for polymerization, the volume ratio of the filtrate to the KOH is 4:1, aging to obtain a Polymeric Aluminum Ferric Chloride (PAFC) liquid product, and drying to obtain a Polymeric Aluminum Ferric Chloride (PAFC) solid product. Flocculation tests show that the flocculation performance of the final polyaluminum ferric chloride (PAFC) is superior to that of PAC and PFC, and the removal rates of COD, turbidity and chroma respectively reach 86%, 97% and 70%.
In conclusion, the method for preparing the polyaluminum ferric chloride by utilizing the thermal-state metallurgical slag at least has the following advantages:
1. the method for preparing the polyaluminum ferric chloride by utilizing the thermal-state metallurgical slag can utilize industrial solid wastes to produce products with high added values, and has simple process and easy popularization.
2. The heat of the powder thermal state metallurgical slag can be utilized, and the energy consumption is low.
3. Can realize the comprehensive utilization of the thermal metallurgical slag and the fly ash simultaneously.
The above are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention; the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is within the spirit and scope of the present invention.
Claims (5)
1. A device for preparing polyaluminum ferric chloride by utilizing thermal-state metallurgical slag is characterized by comprising a blowing device, a heat preservation device, a cooling device, a grinding device, a leaching device, a filtering device and a polymerization aging device which are sequentially connected, wherein,
the heat preservation device comprises a fly ash inlet and a mixed material outlet, and the injection device is connected with the fly ash inlet;
the cooling device comprises a mixed material inlet and a cooling material outlet, and the mixed material inlet is connected with the mixed material outlet;
the grinding device comprises a cooling mixed material inlet and a grinding material outlet, and the cooling mixed material inlet is connected with the cooling material outlet;
the leaching device comprises a ground material inlet and a leached product outlet, and the ground material inlet is connected with the ground material outlet;
the filtering device comprises a leaching product inlet, a filtrate outlet and a leaching residue outlet, and the leaching product inlet is connected with the leaching product outlet;
the polymerization and aging device comprises a leachate inlet and a product outlet, wherein the leachate inlet is connected with the filtrate outlet.
2. The device for preparing the polyaluminum ferric chloride by using the thermal-state metallurgical slag according to claim 1, wherein the blowing device comprises a blowing pipeline, a material storage tank and a blowing mechanism which are sequentially arranged, and the blowing pipeline is connected with the fly ash inlet.
3. The apparatus for preparing polyaluminum ferric chloride from hot metallurgical slag according to claim 1, wherein the cooling device comprises a receiving chamber for receiving the object to be cooled and a cooling medium circuit disposed in the receiving chamber for receiving the object to be cooled.
4. The apparatus for preparing polyaluminum ferric chloride from hot metallurgical slag according to claim 3, wherein the cooling medium loop is spirally arranged in the accommodating cavity for the object to be cooled.
5. The device for preparing the polyaluminum ferric chloride by utilizing the hot metallurgical slag according to claim 1, wherein the cooling device comprises a to-be-cooled object accommodating cavity and a cooling medium loop, and the cooling medium loop is arranged on the wall of the to-be-cooled object accommodating cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621184.2U CN206985741U (en) | 2017-05-31 | 2017-05-31 | A kind of device that PAFC is prepared using hot metallurgical slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720621184.2U CN206985741U (en) | 2017-05-31 | 2017-05-31 | A kind of device that PAFC is prepared using hot metallurgical slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206985741U true CN206985741U (en) | 2018-02-09 |
Family
ID=61390507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720621184.2U Expired - Fee Related CN206985741U (en) | 2017-05-31 | 2017-05-31 | A kind of device that PAFC is prepared using hot metallurgical slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206985741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055626A (en) * | 2017-05-31 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of method and apparatus for preparing PAFC using hot metallurgical slag |
-
2017
- 2017-05-31 CN CN201720621184.2U patent/CN206985741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055626A (en) * | 2017-05-31 | 2017-08-18 | 江苏省冶金设计院有限公司 | A kind of method and apparatus for preparing PAFC using hot metallurgical slag |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104046800B (en) | A kind of from containing the technique extracting white tungsten fine ore ferberite or tungstenic waste residue | |
| CN104911356B (en) | A kind of solid waste gas ash, the comprehensive recycling process of vanadium slag containing zinc-iron | |
| CN101225468B (en) | Method for recovering gold, silver, iron and lead from acid calcination slag by magnetization chlorination process | |
| CN106115768A (en) | A kind of comprehensive cyclic utilization method of steel plant zinc smoke ash | |
| CN104694760A (en) | Method and system for processing red mud to recycle refined iron powder | |
| CN103074456A (en) | Method for recycling iron from waste red mud in alumina production | |
| CN103468848B (en) | Method for treating high-iron red mud by high-temperature iron bath | |
| CN101709341A (en) | Method for treating iron-containing waste materials in iron and steel plant | |
| CN105861845B (en) | A kind of method of Combined Treatment copper ashes and slag | |
| CN110564970A (en) | Process method for recovering potassium, sodium and zinc from blast furnace cloth bag ash | |
| CN104073649A (en) | Iron-containing zinc powder recycling process | |
| CN106540801A (en) | A kind of method that magnetizing roast magnetic separation is carried out to red mud | |
| CN103484684A (en) | No-pollution treatment method of electrolytic aluminum smelting aluminum slag | |
| CN102719575B (en) | Converter steel slag modifier and manufacturing and using methods thereof | |
| CN112111660A (en) | Method for enriching lithium from lithium ore and preparing ferro-silicon alloy and recycling aluminum oxide | |
| CN102268502B (en) | Spongy iron preparation method by smelting refractory iron ore (slag) with reduction rotary kiln | |
| CN104294032B (en) | The comprehensive recovering process of oxidation tin ore gravity tailings | |
| CN101824544B (en) | Comprehensive recovery method for smelted lead waste slag of blast furnace | |
| CN109264751B (en) | Method for extracting lithium carbonate and ammonium metavanadate from lepidolite and vanadium-containing shale | |
| CN105838839B (en) | It prepares the method for granulated iron and prepares the system of granulated iron | |
| CN206985741U (en) | A kind of device that PAFC is prepared using hot metallurgical slag | |
| CN102304597A (en) | Method for smelting iron by utilizing sulfuric acid slag | |
| CN105316479A (en) | Red mud vanadium extracting and ore-blending sintering method | |
| CN107055626A (en) | A kind of method and apparatus for preparing PAFC using hot metallurgical slag | |
| CN110724821A (en) | Method for comprehensively recovering valuable metals from low-grade multi-metal hazardous wastes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20190102 Granted publication date: 20180209 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20220102 Granted publication date: 20180209 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180209 Termination date: 20190531 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |