CN207877756U - A kind of system that nickel slag prepares granulated iron and porous ceramics - Google Patents
A kind of system that nickel slag prepares granulated iron and porous ceramics Download PDFInfo
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- CN207877756U CN207877756U CN201721720295.5U CN201721720295U CN207877756U CN 207877756 U CN207877756 U CN 207877756U CN 201721720295 U CN201721720295 U CN 201721720295U CN 207877756 U CN207877756 U CN 207877756U
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Abstract
The utility model provides a kind of system that nickel slag prepares granulated iron and porous ceramics, which includes the first raw material processing system, the first rotary hearth furnace, concentration equipment, the second raw material processing system and the second rotary hearth furnace.The systems and methods of the utility model comprehensively utilize the solid wastes such as nickel slag, boron mud, B in boron mud2O3While promoting the reduction of nickel slag, the formation of porous ceramics is further promoted.
Description
Technical field
The utility model belongs to technical field of refractory materials, and in particular to what a kind of nickel slag prepared granulated iron and porous ceramics is
System.
Background technology
Nickel slag is a kind of industrial residue discharged during metal smelting nickel.1 ton is produced using Flash Smelting Furnace smelting process
6~16 tons of nickel slags need to be discharged in nickel.China about generates 900,000 tons of nickel slags every year at present.The chemical composition of nickel slag and blast-furnace cinder class
Seemingly, the difference but in content.Iron mainly exists in the form of ferrosilite in nickel slag, on a small quantity with Fe2O3Form exists, and is melting
The granulated slag that object is formed after water quenching also has without water quenching and directly outer the case where arranging.
Boron mud is to be given up using magnesium borate ore as raw material using the boronations work product such as carbon alkali method for producing borax and boric acid is remaining
Gurry.The valuable elements such as boron when ceramics standby using boric sludge in boron mud are not utilized effectively in the prior art, and enter
In porous ceramics, result in waste of resources.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of system and method that nickel slag prepares granulated iron and porous ceramics, it should
System and method can solve the problems, such as that the solid wastes such as nickel slag, boron mud comprehensively utilize simultaneously.
One side according to the present utility model provides a kind of system that nickel slag prepares granulated iron and porous ceramics, the system packet
It includes：
First raw material processing system, first raw material processing system include that nickel slag entrance, boron mud entrance, carbon raw material enter
Mouth, waterglass entrance and the outlet of the first mold compound；
First rotary hearth furnace, first rotary hearth furnace include the first mold compound entrance, carbon raw material entrance and reduzate
Outlet, the first mold compound entrance are connected with the outlet of the first mold compound of first raw material processing system；
Concentration equipment, the concentration equipment includes reduzate entrance, granulated iron exports and non magnetic product exit, described to go back
Former product inlet is connected with the outlet of the reduzate of first rotary hearth furnace；
Second raw material processing system, second raw material processing system include non magnetic product inlet, magnesite entrance, water
Glass inlet port and the outlet of the second mold compound, the non magnetic product inlet are connected with the non magnetic product exit of concentration equipment；
Second rotary hearth furnace, second rotary hearth furnace includes the second mold compound entrance and porous ceramics products export, described
Second mold compound entrance is connected with the outlet of the second mold compound of the second raw material processing system.
One embodiment according to the present utility model, the first raw material processing system include mixing device, molding machine and baking
Equipment for drying and the second raw material processing system include mixing device, molding machine and drying unit.
One embodiment according to the present utility model, concentration equipment are dry type magnetic separation device.
Another aspect according to the present utility model provides a kind of side preparing granulated iron and porous ceramics using above system
Method, this method include the following steps：
1) nickel slag, boron mud, carbon raw material and waterglass are added to the first raw material processing system in proportion, through the first raw material
After processing system processing, the first mold compound is obtained；
2) carbon raw material, the first mold compound are distributed into successively in the first rotary hearth furnace and carry out reduction treatment, also originated in
Object；
3) reduzate is detached through concentration equipment, obtains granulated iron and non magnetic product；
4) non magnetic product, magnesite and waterglass are added to the second raw material processing system in proportion, through the second raw material
After processing system processing, the second mold compound is obtained；
5) the second mold compound is sent into the second rotary hearth furnace and carries out calcination process, obtain porous ceramics product.
One embodiment according to the present utility model, nickel cinder ladle includes 35~45wt% of TFe in step 1), and S 0.5~
1.0wt%, SiO230~35wt%, Al2O3The impurity of 1~3wt%, MgO 4~8wt%, CaO1~4wt% and surplus.
One embodiment according to the present utility model, content of MgO is more than 40wt%, SiO in boron mud in step 1)2Content is big
In 30wt%, B2O3Content is more than 3wt%, and 10~30% that the addition of boron mud is nickel slag amount.
One embodiment according to the present utility model, in step 1) addition of carbon raw material be nickel slag amount 10~
30%.For example, carbon raw material includes one or more of anthracite, bituminous coal, semicoke, coke, carbon black, petroleum coke.
One embodiment according to the present utility model, the dosage of waterglass is the 1~3% of nickel slag amount in step 1),
Modulus n is 2.6~2.9.
One embodiment according to the present utility model, the dosage of carbon raw material is the first mold compound quality in step 2)
5~10%.
One embodiment according to the present utility model, the granularity of carbon raw material is 0.5~1mm in step 2).
One embodiment according to the present utility model, the reduction temperature of the first rotary hearth furnace is 1400~1450 in step 2)
DEG C, the recovery time is 20~40 minutes.
One embodiment according to the present utility model, the addition of magnesite is the 30 of non magnetic product quality in step 4)
~50%.
One embodiment according to the present utility model, content of MgO is more than 45% in water chestnut magnesite in step 4).
One embodiment according to the present utility model, magnesite of the granularity less than 0.5mm accounts in water chestnut magnesite in step 4)
80%~90%.
One embodiment according to the present utility model, the dosage of water chestnut waterglass is the 1 of non magnetic product quality in step 4)
~3%.
One embodiment according to the present utility model, the calcination temperature of the second rotary hearth furnace is 1100~1300 in step 5)
DEG C, roasting time is 40~60 minutes.Wherein, 1100~1200 DEG C of feed zone temperature, roast area temperature in the second rotary hearth furnace
1200~1300 DEG C, 1150~1250 DEG C of discharge zone temperature.
The moisture of one embodiment according to the present utility model, the first mold compound is less than 2%.
One embodiment according to the present utility model, in step 4) briquetting pressure used in the second raw material processing system be 20~
30MPa。
By using the systems and methods of the utility model, following multiple beneficial effect can be obtained：
(1) solid wastes such as nickel slag, boron mud are comprehensively utilized, B in boron mud2O3While promoting the reduction of nickel slag, further promote more
The formation of hole ceramics；
(2) the utility model also fully utilizes SiO therein while realizing iron recycling2And MgO, thus solve
Nickel slag prepares the low problem of tailings utility value after granulated iron；
(3) SiO when preparing porous ceramics2, MgO etc. can be used as valuable element, the porous pottery of white olivine of generation
Porcelain has many advantages, such as that high temperature resistant, bending strength are high, and the cost of 1 ton of product can reduce 50-70 members.
Description of the drawings
Fig. 1 is the structural schematic diagram for the system that nickel slag according to the present utility model prepares granulated iron and porous ceramics；
Fig. 2 is the flow diagram for the method that nickel slag according to the present utility model prepares granulated iron and porous ceramics.
Specific implementation mode
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to specific embodiment
And attached drawing, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only solving
The utility model is released, is not used to limit the utility model.
As shown in Figure 1, the nickel slag of the utility model prepares granulated iron and the system of porous ceramics generally includes at the first raw material
Reason system 100, the first rotary hearth furnace 200, concentration equipment 300, the second raw material processing system 400 and the second rotary hearth furnace 500.
First raw material processing system 100 includes nickel slag entrance, boron mud entrance, carbon raw material entrance, waterglass entrance and the
One mold compound exports.First raw material processing system 100 can be composed of mixing device, molding machine and drying unit,
It is used to that raw material to be mixed, is molded and be dried.
First rotary hearth furnace 200 includes the first mold compound entrance, carbon raw material entrance and reduzate outlet.First molding
Product inlet is connected with the outlet of the first mold compound of first raw material processing system 100.
Concentration equipment 300 includes reduzate entrance, granulated iron outlet and non magnetic product exit.Reduzate entrance and
The reduzate outlet of one rotary hearth furnace 200 is connected.Concentration equipment 300 can select dry type magnetic separation device etc..
Second raw material processing system 400 includes non magnetic product inlet, magnesite entrance, waterglass entrance and the second molding
Product exit.Non magnetic product inlet is connected with the non magnetic product exit of concentration equipment 300.Second raw material processing system 400
It can also be composed of mixing device, molding machine and drying unit, be used to that raw material to be mixed, is molded and be dried.
Second rotary hearth furnace 500 includes the second mold compound entrance and porous ceramics products export.Second mold compound entrance
It is connected with the outlet of the second mold compound of the second raw material processing system 400.
With reference to figure 2, the utility model additionally provides a kind of method preparing granulated iron and porous ceramics, and this method is described below
Specific steps.
Nickel slag, boron mud, carbon raw material and waterglass are added in proportion in the first raw material processing system 100 first, passed through
After the processing of first raw material processing system 100, the first mold compound is obtained.The treatment process of first raw material processing system includes mixed
Material, molding and drying, it is hereby achieved that moisture is less than 2% the first mold compound.Nickel slag used is nickel fibers process
The waste of middle discharge, main component are 35~45wt% of TFe, S 0.5~1.0wt%, SiO230~35wt%,
Al2O31~3wt%, MgO 1~4wt% of 4~8wt%, CaO, 30~40% SiO contained in nickel slag as a result,2, 4~
8% MgO can be used as the follow-up useful component for preparing porous ceramics, to realize SiO2While comprehensive utilization with MgO,
The addition demand for also reducing follow-up magnesite, reduces production cost.Content of MgO is more than 40%, SiO in boron mud2Content is big
In 30%, B2O3Content is more than 3%, and the addition of the boron mud is the 10~30% of nickel slag amount；Thus boron mud can be used as fluxing
Agent promotes the reduction of difficult reduction ferrosilite in nickel slag, while MgO, SiO therein2Etc. may continue as preparing porous ceramics
Useful component, the B in boron mud2O3Major part enters in the tailings of non magnetic product；When the addition of boron mud is too low, Bu Nengyou
Effect promotes the formation of porous ceramics void, excessively high in shaped article internal flow under high temperature when addition is excessively high, is easily formed big
Amount through hole and influence the performance of porous ceramics.Carbon raw material is in anthracite, bituminous coal, semicoke, coke, carbon black, petroleum coke
One or more, the addition of carbon raw material are the 10~30% of nickel slag amount, thus nickel slag can be made to restore to the greatest extent；Carbon
Matter raw material addition is too low, causes ferriferous oxide reduction in nickel slag incomplete；Addition is excessively high, increases the energy of reduction process
Consumption and production cost.The dosage of waterglass is 1~3%, and modulus n is 2.6~2.9, is thus made in the second forming process
For good binder, wherein Na2O and SiO2Etc. being further used as preparing the valuable constituent of porous ceramics；The dosage mistake of waterglass
When low, the intensity difference of the second mold compound when dosage is excessively high, then can make the second mold compound moisture excessively high, and can be second
It carries out bursting in roasting process in rotary hearth furnace.
Reduction treatment is carried out next, carbon raw material, the first mold compound are distributed into successively in the first rotary hearth furnace 200, is obtained
To reduzate.Carbon raw material is one or more in anthracite, bituminous coal, semicoke, coke, carbon black, petroleum coke, carbon raw material
Granularity is 0.5~1mm, and the dosage of carbon raw material is the 5~10% of the first mold compound quality, and thus carbon raw material can be used as grain
The pore former of the grate-layer material and porous ceramics of iron reaction, can make porous ceramics form the gap of 0.5~1mm.First rotary hearth furnace 200
Reduction temperature be 1400~1450 DEG C, the recovery time be 20~40 minutes.
Next, reduzate is detached through concentration equipment 300, granulated iron and non magnetic product are obtained.Gained granulated iron
93% or more, non magnetic product is made of the iron content of product tailings and carbonaceous particle.Wherein the iron content of tailings be 3~
8wt%, content of MgO are more than 10wt%, SiO2Content is more than 40wt%, B2O3Content is 0.3~0.6wt%, due in boron mud
B2O3Major part enters in tailings, therefore B2O3The firing of porous ceramics, carbonaceous particle can be further promoted to be passed through for carbon raw material
The product being discharged after the reaction of first rotary hearth furnace, and the pore former of porous ceramics can be further used as.
Next, non magnetic product, magnesite and waterglass are added to the second raw material processing system 400 in proportion, pass through
After the processing of second raw material processing system 400, the second mold compound is obtained.Wherein, the second feedstock processing process includes material mixing, molding
And drying, it is hereby achieved that moisture is less than 1% the second mold compound.The addition of magnesite is non magnetic product matter
The 30~50% of amount, content of MgO is more than 45% in magnesite, and magnesite granularity accounts for 80~90% less than 0.5mm.The use of waterglass
Amount is the 1~3% of non magnetic product quality.Briquetting pressure is 20~30MPa, and the second mold compound is through second turn of bottom as a result,
After stove calcination process, higher bending strength can get.
Later, the second mold compound is sent into the second rotary hearth furnace 500 and carries out calcination process, obtain porous ceramics product.The
The calcination temperature of two rotary hearth furnaces is 1100~1300 DEG C, and roasting time is 40~60 minutes.Feed zone temperature is in rotary hearth furnace
1100~1200 DEG C, roast area temperature is 1200~1300 DEG C, and discharge zone temperature is 1150~1250 DEG C.Carbonaceous particle as a result,
Mistake can quickly being burnt in feed zone and forming the gaps below 1mm, magnesite then is successively completed to forge in feed zone and roast area
It burns, sintering process, and because of the CO of magnesite decomposition in calcination process2Release forms the gaps below 0.5mm.Wherein, it is granulated
B in slag2O3At high temperature in shaped article internal flow, the formation of porous ceramics void is further promoted.
The pore size of finally obtained porous ceramics is 0~1mm, porosity is 30~60%, bending strength is in 50MPa
More than.
Illustrate the system and method for the utility model with reference to specific embodiment.
Embodiment 1
It is 100 in mass ratio by nickel slag, boron mud, coke and waterglass:10:10:1 dispensing, then through the first treatment process into
After row mixing, molding and drying, the first mold compound that moisture is 0.1% is obtained.Wherein, the content of MgO of boron mud be 44.9%,
SiO2Content is 30.7%, B2O3Content is 3.76%, and the modulus of waterglass is 2.9, and the ingredient of nickel slag is specifically shown in Table 1.
Coke, the first mold compound are successively distributed into the first rotary hearth furnace, wherein shop fixtures of the coke as the first rotary hearth furnace
Material, granularity 0.5mm, dosage are the 5% of the first mold compound weight, the reduction temperature of the first rotary hearth furnace is 1400 DEG C,
Recovery time is 40 minutes, obtains reduzate.
Reduzate obtains granulated iron product and non magnetic product after dry-type magnetic extractor magnetic separation.The wherein iron content of granulated iron
Be 93.5%, non magnetic product is then made of tailings and carbonaceous particle, the iron content of tailings is 8%, content of MgO 10.5%,
SiO2Content is 41.2%, B2O3Content is 0.6%.
Non magnetic product, magnesite and the waterglass of gained are pressed 100:30:1 mass ratio carries out material mixing, molding and baking
It is dry, the second mold compound that compression strength is 20MPa, moisture is 0.5% is obtained, the wherein granularity of magnesite is that -0.5mm is accounted for
80%, content of MgO is 45.5% in magnesite.
Second mold compound is distributed into the second rotary hearth furnace and is roasted, the temperature of the second rotary hearth furnace feed zone is 1100
DEG C, roast area temperature is 1200 DEG C, and discharge zone temperature is 1150 DEG C, roasting time 60min.
Finally, the pore size for obtaining porous ceramics is about 0.01mm, porosity 30%, bending strength 55MPa.
The utility model produces granulated iron and porous ceramics by raw material of solid wastes such as nickel slag, boron muds.1 ton of product cost can reduce
70.00 yuan, and while output high added value iron product, porous ceramics product can also be prepared, compared to use boron mud for
When raw material, bending strength improves 1 times or more.
1 nickel slag multielement analysis (%) of table
| Ingredient | TFe | FeO | CaO | MgO | SiO2 | Al2O3 | S | P | Na2O | K2O | Ni | Pb | Zn | Cu |
| Content | 44.71 | 47.33 | 1.04 | 4.05 | 33.48 | 0.93 | 0.99 | 0.009 | 0.83 | 0.19 | 0.35 | Trace | 0.038 | 0.21 |
Embodiment 2
It is 100 in mass ratio by nickel slag, boron mud, anthracite and waterglass:15:15:2 dispensings, then through the first treatment process
After carrying out mixing, molding and drying, the first mold compound that moisture is 0.5% is obtained.Wherein, the content of MgO of boron mud is
43.8%, SiO2Content is 31.5%, B2O3Content is 3.72%, and the modulus of waterglass is 2.8, and the ingredient of nickel slag is specifically shown in Table
2。
Anthracite, the first mold compound are successively distributed into the first rotary hearth furnace, wherein anthracite is as the first rotary hearth furnace
Grate-layer material, granularity 0.8mm, dosage are the 6% of the first mold compound weight, and the reduction temperature of the first rotary hearth furnace is 1410
DEG C, the recovery time be 35 minutes, obtain reduzate.
Reduzate obtains granulated iron product and non magnetic product after dry-type magnetic extractor magnetic separation.The wherein iron content of granulated iron
Be 94%, non magnetic product is then made of tailings and carbonaceous particle, the iron content of tailings is 7%, content of MgO 11.2%,
SiO2Content is 40.8%, B2O3Content is 0.5%.
Non magnetic product, magnesite and the waterglass of gained are pressed 100:40:2 mass ratio carries out material mixing, molding and baking
It is dry, the second mold compound that compression strength is 20MPa, moisture is 0.7% is obtained, the wherein granularity of magnesite is that -0.5mm is accounted for
83%, content of MgO is 45.4% in magnesite.
Second mold compound is distributed into the second rotary hearth furnace and is roasted, the temperature of the second rotary hearth furnace feed zone is 1150
DEG C, roast area temperature is 1250 DEG C, and discharge zone temperature is 1200 DEG C, roasting time 50min.
Finally, the pore size for obtaining porous ceramics is about 0.5mm, porosity 50%, bending strength 53MPa.
The utility model produces granulated iron and porous ceramics by raw material of solid wastes such as nickel slag, boron muds.1 ton of product cost can reduce
62.27 yuan, and while output high added value iron product, porous ceramics product can also be prepared, compared to use boron mud for
When raw material, porosity improves 20%, its bending strength and improves 1 times or more.
2 nickel slag multielement analysis (%) of table
| Ingredient | TFe | FeO | CaO | MgO | SiO2 | Al2O3 | S | P | Na2O | K2O | Ni | Pb | Zn | Cu |
| Content | 44.71 | 47.33 | 1.04 | 4.05 | 33.48 | 0.93 | 0.99 | 0.009 | 0.83 | 0.19 | 0.35 | Trace | 0.038 | 0.21 |
Embodiment 3
It is 100 in mass ratio by nickel slag, boron mud, semicoke and waterglass:20:20:3 dispensings, then through the first treatment process into
After row mixing, molding and drying, the first mold compound that moisture is 1% is obtained.Wherein, the content of MgO of boron mud be 43.1%,
SiO2Content is 32.3%, B2O3Content is 3.45%, and the modulus of waterglass is 2.7, and the ingredient of nickel slag is specifically shown in Table 3.
Semicoke, the first mold compound are successively distributed into the first rotary hearth furnace, wherein shop fixtures of the semicoke as the first rotary hearth furnace
Material, granularity 1mm, dosage are the 8% of the first mold compound weight, and the reduction temperature of the first rotary hearth furnace is 1430 DEG C, goes back
The former time is 30 minutes, obtains reduzate.
Reduzate obtains granulated iron product and non magnetic product after dry-type magnetic extractor magnetic separation.The wherein iron content of granulated iron
Be 94.5%, non magnetic product is then made of tailings and carbonaceous particle, the iron content of tailings is 5%, content of MgO 11.9%,
SiO2Content is 40.4%, B2O3Content is 0.4%.
Non magnetic product, magnesite and the waterglass of gained are pressed 100:45:3 mass ratio carries out material mixing, molding and baking
It is dry, the second mold compound that compression strength is 20MPa, moisture is 0.8% is obtained, the wherein granularity of magnesite is that -0.5mm is accounted for
88%, content of MgO is 45.2% in magnesite.
Second mold compound is distributed into the second rotary hearth furnace and is roasted, the temperature of the second rotary hearth furnace feed zone is 1200
DEG C, roast area temperature is 1300 DEG C, and discharge zone temperature is 1250 DEG C, roasting time 55min.
Finally, the pore size for obtaining porous ceramics is about 1mm, porosity 55%, bending strength 52MPa.
The utility model produces granulated iron and porous ceramics by raw material of solid wastes such as nickel slag, boron muds.1 ton of product cost can reduce
60.68 yuan, and while output high added value iron product, porous ceramics product can also be prepared, compared to use boron mud for
When raw material, porosity improves 25%, bending strength and improves 1 times or more.
3 nickel slag multielement analysis (%) of table
| Ingredient | TFe | FeO | CaO | MgO | SiO2 | Al2O3 | S | P | Na2O | K2O | Ni | Pb | Zn | Cu |
| Content | 39.78 | 44.79 | 1.97 | 5.65 | 32.97 | 1.89 | 0.73 | 0.015 | 1.29 | 0.26 | 0.36 | Trace | 0.046 | 0.24 |
Embodiment 4
It is 100 in mass ratio by nickel slag, boron mud, anthracite and waterglass:30:30:3 dispensings, then through the first treatment process
After carrying out mixing, molding and drying, the first mold compound that moisture is 2% is obtained.Wherein, the content of MgO of boron mud be 42.5%,
SiO2Content is 32.9%, B2O3Content is 3.39%, and the modulus of waterglass is 2.6, and the ingredient of nickel slag is specifically shown in Table 4.
Anthracite, the first mold compound are successively distributed into the first rotary hearth furnace, wherein anthracite is as the first rotary hearth furnace
Grate-layer material, granularity 1mm, dosage are the 10% of the first mold compound weight.The reduction temperature of first rotary hearth furnace is 1450
DEG C, the recovery time be 20 minutes, obtain reduzate.
Reduzate obtains granulated iron product and non magnetic product after dry-type magnetic extractor magnetic separation.The wherein iron content of granulated iron
Be 95%, non magnetic product is then made of tailings and carbonaceous particle, the iron content of tailings is 3%, content of MgO 12.6%,
SiO2Content is 40.1%, B2O3Content is 0.3%.
Non magnetic product, magnesite and the waterglass of gained are pressed 100:50:3 mass ratio carries out material mixing, molding and baking
It is dry, the second mold compound that compression strength is 20MPa, moisture is 0.5% is obtained, the wherein granularity of magnesite is that -0.5mm is accounted for
90%, content of MgO is 45.1% in magnesite.
Second mold compound is distributed into the second rotary hearth furnace and is roasted, the temperature of the second rotary hearth furnace feed zone is 1200
DEG C, roast area temperature is 1300 DEG C, and discharge zone temperature is 1250 DEG C, roasting time 40min.
Finally, the pore size for obtaining porous ceramics is about 1mm, porosity 60%, bending strength 51MPa.
The utility model produces granulated iron and porous ceramics by raw material of solid wastes such as nickel slag, boron muds.1 ton of product cost can reduce
52.69 yuan, and while output high added value iron product, porous ceramics product can also be prepared, compared to use boron mud for
When raw material, porosity improves 30%, bending strength and improves nearly 1 times.
Table 4 melts nickel slag multielement analysis (%)
| Ingredient | TFe | FeO | CaO | MgO | SiO2 | Al2O3 | S | P | Na2O | K2O | Ni | Pb | Zn | Cu |
| Content | 35.21 | 36.48 | 3.47 | 7.96 | 30.08 | 2.97 | 0.53 | 0.026 | 1.59 | 0.74 | 0.45 | Trace | 0.051 | 0.38 |
The embodiment of the utility model above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
Cannot the limitation to the utility model patent range therefore be interpreted as.It should be pointed out that for the ordinary skill of this field
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.
Claims (3)
1. a kind of system that nickel slag prepares granulated iron and porous ceramics, which is characterized in that including：
First raw material processing system, first raw material processing system include nickel slag entrance, boron mud entrance, carbon raw material entrance,
Waterglass entrance and the outlet of the first mold compound；
First rotary hearth furnace, first rotary hearth furnace include that the first mold compound entrance, carbon raw material entrance and reduzate export,
The first mold compound entrance is connected with the outlet of the first mold compound of first raw material processing system；
Concentration equipment, the concentration equipment includes reduzate entrance, granulated iron exports and non magnetic product exit, described also to originate in
Object entrance is connected with the outlet of the reduzate of first rotary hearth furnace；
Second raw material processing system, second raw material processing system include non magnetic product inlet, magnesite entrance, waterglass
Entrance and the outlet of the second mold compound, the non magnetic product inlet are connected with the non magnetic product exit of concentration equipment；
Second rotary hearth furnace, second rotary hearth furnace include the second mold compound entrance and porous ceramics products export, described second
Mold compound entrance is connected with the outlet of the second mold compound of the second raw material processing system.
2. system according to claim 1, which is characterized in that at first raw material processing system and second raw material
Reason system includes mixing device, molding machine and drying unit.
3. system according to claim 1, which is characterized in that the concentration equipment is dry type magnetic separation device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721720295.5U CN207877756U (en) | 2017-12-12 | 2017-12-12 | A kind of system that nickel slag prepares granulated iron and porous ceramics |
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|---|---|---|---|
| CN201721720295.5U CN207877756U (en) | 2017-12-12 | 2017-12-12 | A kind of system that nickel slag prepares granulated iron and porous ceramics |
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| Publication Number | Publication Date |
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2017
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