CN107353033A - A kind of apparatus system of red mud production sintering-expanded haydite - Google Patents
A kind of apparatus system of red mud production sintering-expanded haydite Download PDFInfo
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- CN107353033A CN107353033A CN201710712224.9A CN201710712224A CN107353033A CN 107353033 A CN107353033 A CN 107353033A CN 201710712224 A CN201710712224 A CN 201710712224A CN 107353033 A CN107353033 A CN 107353033A
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- haydite
- red mud
- drying
- pelletizing
- quenching
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000001035 drying Methods 0.000 claims abstract description 73
- 238000005453 pelletization Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000010791 quenching Methods 0.000 claims abstract description 43
- 230000000171 quenching effect Effects 0.000 claims abstract description 43
- 239000002994 raw material Substances 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 239000004088 foaming agent Substances 0.000 claims abstract description 18
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 41
- 230000008569 process Effects 0.000 claims description 33
- 238000002156 mixing Methods 0.000 claims description 29
- 238000012216 screening Methods 0.000 claims description 27
- 238000001354 calcination Methods 0.000 claims description 18
- 239000004927 clay Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000010881 fly ash Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 11
- 238000000137 annealing Methods 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 10
- 238000010583 slow cooling Methods 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 239000008188 pellet Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 2
- 239000000446 fuel Substances 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 12
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract description 8
- 239000002910 solid waste Substances 0.000 abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 abstract description 6
- 230000000153 supplemental effect Effects 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 10
- 238000007599 discharging Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 3
- 230000001502 supplementing effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000498 ball milling Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004131 Bayer process Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
- C04B33/1322—Red mud
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/30—Drying methods
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/32—Burning methods
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a kind of apparatus system of red mud production sintering-expanded haydite, including batch mixer, disc balling machine, drying device, calciner and cooling device, the disc balling machine is connected with the batch mixer, the drying device is connected with the disc balling machine, the calciner is connected with the drying device, the cooling device is connected with the calciner, its surface is quickly solidified for the pelletizing after roasting to be carried out into quenching, prevent from sticking together between haydite pelletizing while can also prevent pelletizing from shrinking.The apparatus system is primary raw material using solid waste, utilizes the Fe in red mud2O3Resource, using Fe2O3Foaming agent is used as with carbon reaction, instead of tradition using carbonate as foaming agent, resource has been saved, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent be also used as the fuel of supplemental heat source, saved energy consumption；The apparatus system uses air-cooled technique after material completes roasting, can reduce the adhesion rate between haydite, improve the yield rate of product.
Description
Technical field
The invention belongs to red mud field of comprehensive utilization, more particularly to utilizes the process and dress of red mud production sintering-expanded haydite
Put system.
Background technology
Red mud is the byproduct of aluminum oxide industry, and 1 ton of aluminum oxide of production can produce 1.1-1.5 ton red muds, with recent years
The fast development of aluminum oxide industry, China's aluminum oxide yield in 2012 is 42,140,000 tons, red mud discharge capacity about 5000-6000 ten thousand
Ton.Red mud is a kind of large discarded object in China, there is no effective processing method, is still disposed using the method sealed up for safekeeping, at present
Total amount of storage is more than 200,000,000 tons.The method sealed up for safekeeping using land can not only take substantial amounts of soil, and because red mud has
Strong basicity, once tailing dam occur dam-break accident, huge harm will be caused to personal safety as well as the property safety and ecological environment.To red
The recycling of mud is the fundamental way for solving problem of environmental pollution and realizing itself value, the main component of red mud is CaO,
SiO2、Al2O3、Fe2O3Deng, by coordinating other raw materials, can meet produce sintering-expanded haydite requirement.
At present, have the method that haydite is produced using red mud as raw material both at home and abroad, reclaimed again using red mud as resource sharp
With.Chinese patent CN102336579A disclose it is a kind of disclose it is a kind of using red mud produce high performance ceramsite method, specifically
Operating process is：Bayer process red mud 40-70 parts, red mud from sintering process 0-30 parts, flyash 5-20 parts, clay are taken by butt parts by weight
Class material 5-30 parts as raw material, be put into after each raw material be well mixed with parts by weight for the water of 5-20 parts on pan-pelletizer progress into
Ball handles to obtain haydite raw material ball, takes diameter to be put into 0.5mm-20mm haydite raw material ball in rotary kiln or sintering machine and is burnt
Knot, its sintering temperature is 1050 DEG C -1200 DEG C, sintering time 15min-60min, and the haydite after sintering then is carried out into chilling
High performance ceramsite product is can be prepared by after processing.But this method still suffers from deficiency, because primary raw material is matched somebody with somebody using two kinds of red muds
Flyash and clay are closed, is calcined after pelletizing and obtains sintering-expanded haydite, this method dispensing may cause gas forming amount insufficient, haydite be present
Swollen situation can not be burnt.Therefore, a kind of red mud production sintering-expanded haydite for reducing haydite adhesion rate, saving the energy how is designed
Apparatus system, the problem of turning into current urgent need to resolve.
The content of the invention
For above-mentioned problem present in prior art, the invention provides a kind of device system of red mud production sintering-expanded haydite
System, is primary raw material using solid waste, innovation utilizes the Fe in red mud2O3Resource, using Fe2O3Conduct is reacted with carbon
Foaming agent, tradition is instead of using carbonate as foaming agent, resource has been saved, moreover, carbon not only plays Fe in pelletizing2O3Reduction
Agent can also serve as the fuel of supplemental heat source, save energy consumption；By the way of the apparatus system matches somebody with somebody fuel in, it can enable
Amount has saved energy consumption using fully；The apparatus system uses air-cooled technique after material completes roasting, can reduce between haydite
Adhesion rate, improve the yield rate of product.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
The invention provides a kind of apparatus system of red mud production sintering-expanded haydite, it is characterised in that including batch mixer, disk pelletizing
Machine, drying device, calciner and cooling device；Wherein, the disc balling machine is connected with the batch mixer, for that will mix
Uniform material carries out ball processed and handles to obtain wet bulb group；The drying device is connected with the disc balling machine, for by wet bulb
Group is dried processing and obtains dry bulb group；The calciner is connected with the drying device, for dry bulb group to be calcined
Processing；The cooling device is connected with the calciner, makes its surface for the pelletizing after roasting first to be carried out into quenching
Quick solidification, then again slow cooling to room temperature.
Inventor has found, the invention provides a kind of apparatus system of red mud production sintering-expanded haydite, uses solid waste
For primary raw material, innovation utilizes the Fe in red mud2O3Resource, using Fe2O3Foaming agent is used as with carbon reaction, instead of tradition
Using carbonate as foaming agent, resource is saved, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent can also serve as supplementing
The fuel of thermal source, has saved energy consumption；By the way of the apparatus system matches somebody with somebody fuel in, energy utilization can be made abundant, saved
Energy consumption；The apparatus system uses air-cooled technique after material completes roasting, can reduce the adhesion rate between haydite, improve production
The yield rate of product.
According to a particular embodiment of the invention, the cooling device includes quenching apparatus and annealing device, wherein, the urgency
Device for cooling is connected with the calciner, its surface is quickly solidified for the pelletizing after roasting to be carried out into quenching, described
Annealing device is connected with the quenching apparatus, is handled for the pelletizing after chilling to be carried out into slow cooling down to room temperature.
According to a particular embodiment of the invention, the quenching apparatus is air cooling equipment.
According to a particular embodiment of the invention, in addition to lapping device, the entrance of the lapping device and the batch mixer
It is connected, for material to be ground into processing.
According to a particular embodiment of the invention, in addition to drying unit and screening plant；Wherein, the drying unit and institute
The entrance for stating lapping device is connected, for row after material is carried out into drying and processing into lapping device；The screening plant difference
With the exporting of the lapping device, the entrance of the batch mixer is connected, for the material after grinding to be carried out into screening process, ensure
The material particles for carrying out mixing treatment meet to require.
According to a particular embodiment of the invention, the sieve of the screening plant sieves for 0.074mm.
According to a particular embodiment of the invention, the calciner be Muffle furnace, drying grate, roller kilns, rotary kiln or
Rotary hearth furnace.
Meanwhile present invention provides a kind of producer for the apparatus system that sintering-expanded haydite is produced using above-mentioned red mud
Method, it is characterised in that comprise the following steps：
（1）Mixing treatment：Red mud, flyash, gangue, clay and blue carbon dust are weighed as raw material, is added in batch mixer
Row mixing treatment；
（2）Ball processing processed：Raw material after the completion of batch mixing is added in disc balling machine and carries out ball processing processed, adds water that haydite is made wet
Pelletizing；
（3）Drying process：Haydite wet bulb group is added in drying device, processing is dried, obtains haydite dry bulb group；
（4）Calcination process：Haydite dry bulb group is added in calciner, calcination process is carried out, obtains haydite pelletizing；
（5）Cooling treatment：After the completion of haydite pellet roasting, it is directly entered cooling device and carries out quenching, make haydite surface fast
Rapid hardening is consolidated, and is prevented from sticking together between haydite pelletizing while can also be prevented haydite from shrinking.
According to a particular embodiment of the invention, step（1）In the content of each raw material be：Red mud 40-60 parts, flyash
20-40 parts, gangue 10-20 parts, clay 5-10 parts and blue carbon dust 1-5 parts, wherein, using the Fe in red mud2O3Resource and carbon are anti-
It should be used as foaming agent；Also include pre-treatment step before each mixing raw materials：Each raw material sequentially enters drying unit and dried
Processing, lapping device are ground processing, screening plant carries out screening process so that whole raw materials can pass through the sieve completely
Entered back into after the 0.074mm sieves of separating device and mixing treatment is carried out in batch mixer.
According to a particular embodiment of the invention, step（2）The middle raw material by after the completion of batch mixing is added in disc balling machine, is used
The mode of spraying adds water, and 1-3mm mother bulb is made in disc balling machine, then, while Jia Shui and Jia batch mixings of spraying, make mother bulb
Grow up, be made into 8-15mm haydite wet bulb group；Step（3）In the condition of drying process be：Drying temperature is 105-120
DEG C, drying time 12-24h；Step（4）In the condition of calcination process be：The maximum temperature of calcination process is 1100-1300
Between DEG C, roasting time of the haydite pelletizing under highest sintering temperature is 5-30 minutes；Step（5）In cooling treatment condition
For：Ease up cold treatment including quenching, wherein, after the completion of haydite pellet roasting, it is directly entered quenching apparatus and carries out at chilling
Reason, less than 400 DEG C are cooled to by haydite；Then, the haydite that quenching is completed, slow cooling processing, drop are carried out into annealing device
Warm to room temperature, collecting packing.
Beneficial effects of the present invention are as follows：
（1）The use of solid waste is primary raw material the invention provides a kind of apparatus system of red mud production sintering-expanded haydite, wound
New utilizes the Fe in red mud2O3Resource, using Fe2O3Be used as foaming agent with carbon reaction, instead of traditional using carbonate to get angry
Agent, economize on resources, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent can also serve as the fuel of supplemental heat source, save
The energy.
（2）The invention provides a kind of red mud production sintering-expanded haydite apparatus system, using it is interior match somebody with somebody fuel by the way of, can
Make energy utilization abundant, save energy consumption.
（3）The invention provides a kind of apparatus system of red mud production sintering-expanded haydite, and wind is used after material completes roasting
Cold technique, the adhesion rate between haydite can be reduced, improve the yield rate of product.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Fig. 2 is the flow chart of apparatus of the present invention system.
Embodiment
Embodiments of the invention are described below in detail.The embodiments described below is exemplary, is only used for explaining this hair
It is bright, and be not considered as limiting the invention.Unreceipted particular technique or condition in embodiment, according to text in the art
Offer described technology or condition or carried out according to product description.Agents useful for same or the unreceipted production firm person of instrument,
For the conventional products of acquisition purchased in market can be passed through.
In the description of the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not
It is interpreted as indicating or implies relative importance or imply the quantity of the technical characteristic indicated by indicating.Thus, define " the
One ", one or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention,
" multiple " are meant that two or more, unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
According to an aspect of the present invention, the invention provides a kind of apparatus system of red mud production sintering-expanded haydite, including
Batch mixer, disc balling machine, drying device, calciner and cooling device；Wherein, the disc balling machine and the batch mixer
It is connected, handles to obtain wet bulb group for well mixed material to be carried out into ball processed；The drying device and the disc balling machine
It is connected, dry bulb group is obtained for wet bulb group to be dried into processing；The calciner is connected with the drying device, for inciting somebody to action
Dry bulb group carries out calcination process；The cooling device is connected with the calciner, for the pelletizing after roasting to be carried out into chilling
Processing makes its surface quickly solidify, and prevents from sticking together between haydite pelletizing while can also prevent pelletizing from shrinking.
Inventor has found, the invention provides a kind of apparatus system of red mud production sintering-expanded haydite, uses solid waste
For primary raw material, innovation utilizes the Fe in red mud2O3Resource, using Fe2O3Foaming agent is used as with carbon reaction, instead of tradition
Using carbonate as foaming agent, resource is saved, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent can also serve as supplementing
The fuel of thermal source, has saved energy consumption；By the way of the apparatus system matches somebody with somebody fuel in, energy utilization can be made abundant, saved
Energy consumption；The apparatus system uses air-cooled technique after material completes roasting, can reduce the adhesion rate between haydite, improve production
The yield rate of product.
A kind of apparatus system of red mud production sintering-expanded haydite provided by the invention, including cooling device, connect with calciner
Connect, its surface is quickly solidified for the pelletizing after roasting to be carried out into quenching, prevent from sticking together simultaneously between haydite pelletizing
Also it can prevent pelletizing from shrinking.According to a particular embodiment of the invention, the cooling device includes quenching apparatus and annealing device, its
In, the quenching apparatus is connected with the calciner, makes its surface quick for the pelletizing after roasting to be carried out into quenching
Solidification；The annealing device is connected with the quenching apparatus, is handled for the pelletizing after chilling to be carried out into slow cooling down to room
Temperature, collecting packing.Further, the quenching apparatus is air cooling equipment, the quenching apparatus and going out after the calciner
Material position is close to, and cooling treatment is carried out to the pelletizing for being used as cooling medium by wind, thus, it is high to burn swollen pottery for red mud
The softer situation in the lower grain surface of temperature, after the completion of haydite pellet roasting, quenching apparatus is directly entered, quenching is carried out to haydite,
Haydite surface is quickly solidified, prevent from sticking together between haydite pelletizing while can also prevent haydite from shrinking.Thus, the apparatus system
Air-cooled technique is used after material completes roasting, the adhesion rate between haydite can be reduced, improve the yield rate of product.
A kind of apparatus system of red mud production sintering-expanded haydite provided by the invention, including calciner, for entering to pelletizing
Row calcination process.According to a particular embodiment of the invention, the discharging opening of the feeding mouth of the calciner and the drying device
It is connected, calcination process is carried out for dry bulb to be rolled into a ball；The discharging opening of the calciner is connected with the feeding mouth of the cooling device,
Its surface is quickly solidified for the pelletizing after roasting to be carried out into quenching, prevent from sticking together between haydite pelletizing while also
Prevent pelletizing from shrinking.The type of the calciner is not particularly limited, as long as calcination process can be carried out to pelletizing.Tool
Body, the calciner is Muffle furnace, drying grate, roller kilns, rotary kiln or rotary hearth furnace.
A kind of apparatus system of red mud production sintering-expanded haydite provided by the invention, including drying device and palletizing device, are used
Ball and drying and processing processed are carried out in material, obtains dry bulb group.According to a particular embodiment of the invention, the entrance of the palletizing device
It is connected with the batch mixer, handles to obtain wet bulb group for well mixed material to be carried out into ball processed；The palletizing device goes out
Mouth is connected with the drying device, and dry bulb group is obtained for wet bulb group to be dried into processing.Further, the palletizing device
It can be disc balling machine；When disc balling machine is started working, first, add water with the mode of spraying, in disc balling machine
Mother bulb is made, then, while Jia Shui and Jia batch mixings of spraying, mother bulb is grown up, be made into haydite wet bulb group.According to the present invention's
Specific embodiment, the entrance of the drying device are connected with the outlet of the palletizing device, the outlet of the drying device and institute
The entrance for stating calciner is connected, and for wet bulb group to be dried into processing, obtains dry bulb group.Further, the dry dress
The type put is not particularly limited, and drying and processing is carried out under cryogenic as long as can roll into a ball wet bulb, such as described dry
Dry device can be baking oven.
A kind of apparatus system of red mud production sintering-expanded haydite provided by the invention, including feed system, the feed system
It is connected with the disc balling machine, for being transported to after material is pre-processed in disc balling machine.According to the tool of the present invention
Body embodiment, the feed system includes batch mixer, the outlet of the batch mixer and the entrance of the disc balling machine, for inciting somebody to action
Material carries out mixed processing.The concrete operation method of the batch mixer is：The material of certain mass is weighed as raw material, will be each
Material is added dispensing according to certain mass ratio, is discharged after being well mixed in the batch mixer.Further, it is described each
Individual material is red mud, flyash, gangue and clay；The mass ratio of above-mentioned each material is：Red mud 40-60 parts, flyash 20-
40 parts, gangue 10-20 parts, clay 5-10 parts, blue carbon dust 1-5 parts.Thus, the use of solid waste is primary raw material, utilizes
Fe in red mud2O3Resource, using Fe2O3Foaming agent is used as with carbon reaction, tradition is instead of using carbonate as foaming agent, saves
Resource, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent can also serve as the fuel of supplemental heat source, using interior with combustion
The mode of material, energy utilization can be made abundant, saved energy consumption.
According to a particular embodiment of the invention, the feed system also includes drying unit, lapping device and screening plant,
Handled for fine grinding after being dried to material, and be finely ground to whole raw materials to sieve completely.The drying unit and institute
The entrance for stating lapping device is connected, for row after material is carried out into drying and processing into lapping device；The lapping device difference
The entrance of outlet and the screening plant with the drying unit is connected, for the material after drying to be transported into lapping device
Middle carry out fine grinding so that the particle of material is more tiny, is advantageous to each storeroom and is uniformly mixed；The screening plant difference
With the exporting of the lapping device, the entrance of the batch mixer is connected, for the material after grinding to be carried out into screening process, ensure
The material particles for carrying out mixing treatment meet to require.Further, the sieve of the screening plant is that 0.074mm sieves are 200 mesh
Sieve, hereby it is achieved that the fine grinding after drying by red mud, flyash, gangue and clay, being finely ground to whole raw materials can be complete
It is 200 mesh sieves by 0.074mm sieves.
According to another aspect of the present invention, sintering-expanded haydite is produced using above-mentioned red mud present invention provides a kind of
The production method of apparatus system, it is characterised in that comprise the following steps：
（1）Mixing treatment：Red mud, flyash, gangue, clay and blue carbon dust are weighed as raw material, is added in batch mixer
Row mixing treatment.
According to a particular embodiment of the invention, the feed system also include drying unit, lapping device, screening plant and
Mixing device, for being dried successively to material, fine grinding, the pretreatment layer by layer of screening and mixing, obtain well mixed thing
Material.According to a particular embodiment of the invention, the drying unit is connected with the entrance of the lapping device, for material to be carried out
Row is into lapping device after drying and processing；The lapping device outlet with the drying unit and the screening plant respectively
Entrance is connected, and carries out fine grinding for the material after drying to be transported in lapping device so that the particle of material is more tiny, favorably
Uniformly mixed in each storeroom；The screening plant enters with the exporting of the lapping device, the batch mixer respectively
Mouth is connected, and for the material after grinding to be carried out into screening process, ensures that the material particles satisfaction for carrying out mixing treatment requires；It is described
The outlet of batch mixer and the entrance of the disc balling machine, for material to be carried out into mixed processing.Further, each thing
Expect for red mud, flyash, gangue and clay；The mass ratio of above-mentioned each material is：Red mud 40-60 parts, flyash 20-40
Part, gangue 10-20 parts, clay 5-10 parts, blue carbon dust 1-5 parts, wherein, using the Fe in red mud2O3Resource and carbon reaction conduct
Foaming agent.Thus, the use of solid waste is primary raw material, utilizes the Fe in red mud2O3Resource, using Fe2O3React and make with carbon
For foaming agent, tradition is instead of using carbonate as foaming agent, resource has been saved, moreover, carbon not only plays Fe in pelletizing2O3Also
Former agent can also serve as the fuel of supplemental heat source, using interior with by the way of fuel, energy utilization can be made abundant, saved energy
Consumption.Further, the sieve of the screening plant be 0.074mm sieve be 200 mesh sieves, hereby it is achieved that by red mud, flyash,
The fine grinding after drying of gangue and clay, i.e. 200 mesh sieves can be sieved by 0.074mm completely by being finely ground to whole raw materials.According to
The specific embodiment of the present invention, the specific work process pre-processed before each mixing raw materials are as follows：Each raw material enters successively
Enter drying unit progress drying and processing, lapping device is ground processing, screening plant carries out screening process so that whole raw materials
Mixing treatment can be carried out in batch mixer by being entered back into after 0.074mm sieves i.e. 200 mesh sieves of the screening plant completely.
（2）Ball processing processed：Raw material after the completion of batch mixing is added in disc balling machine and carries out ball processing processed, with the side of spraying
Formula adds water, is made into haydite wet bulb group.
According to a particular embodiment of the invention, the entrance of the palletizing device is connected with the batch mixer, for that will mix
Uniform material carries out ball processed and handles to obtain wet bulb group；The outlet of the palletizing device is connected with the drying device, for inciting somebody to action
Wet bulb group is dried processing and obtains dry bulb group.Further, the palletizing device can be disc balling machine；When disk pelletizing
Machine start working when, first, add water with the mode of spraying, mother bulb made in disc balling machine, then, while spray plus water and
Add batch mixing, mother bulb is grown up, be made into haydite wet bulb group.The step（2）The specific work process of middle batch mixer is as follows：Will
Raw material after the completion of batch mixing is added in disc balling machine, adds water with the mode of spraying, 1-3mm mother is made in disc balling machine
Ball, then, while Jia Shui and Jia batch mixings of spraying, mother bulb is grown up, be made into 8-15mm haydite wet bulb group.
（3）Drying process：Haydite wet bulb group is added in drying device, processing is dried, obtains haydite dry bulb group.
According to a particular embodiment of the invention, according to a particular embodiment of the invention, the entrance of the drying device and institute
The outlet for stating palletizing device is connected, and the outlet of the drying device is connected with the entrance of the calciner, for by wet bulb group
Processing is dried, obtains dry bulb group.Further, the type of the drying device is not particularly limited, as long as can will be wet
Pelletizing carries out drying and processing under cryogenic, such as the drying device can be baking oven.The step（3）In it is dry
The condition of dry processing is：Drying temperature is 105-120 DEG C, drying time 12-24h；
（4）Calcination process：Haydite dry bulb group is added in calciner, calcination process is carried out, obtains haydite pelletizing.
According to a particular embodiment of the invention, the discharging opening phase of the feeding mouth of the calciner and the drying device
Even, calcination process is carried out for dry bulb to be rolled into a ball；The discharging opening of the calciner is connected with the feeding mouth of the cooling device, uses
Pelletizing after by roasting, which carries out quenching, makes its surface quickly solidify, and prevents from sticking together between haydite pelletizing while also preventing
Only pelletizing shrinks.The type of the calciner is not particularly limited, as long as calcination process can be carried out to pelletizing.Specifically
, the calciner is Muffle furnace, drying grate, roller kilns, rotary kiln or rotary hearth furnace.The step（4）In roasting at
The condition of reason is：Between the maximum temperature of calcination process is 1100-1300 DEG C, roasting of the haydite pelletizing under highest sintering temperature
Time is 5-30 minutes；
（5）Cooling treatment：After the completion of haydite pellet roasting, it is directly entered cooling device and carries out quenching, make haydite surface fast
Rapid hardening is consolidated, and is prevented from sticking together between haydite pelletizing while can also be prevented haydite from shrinking.
According to a particular embodiment of the invention, the cooling device includes quenching apparatus and annealing device, wherein, the urgency
Device for cooling is connected with the calciner, its surface is quickly solidified for the pelletizing after roasting to be carried out into quenching；It is described
Annealing device is connected with the quenching apparatus, for the pelletizing after chilling to be carried out into slow cooling processing down to room temperature, collects bag
Dress.Further, the quenching apparatus is air cooling equipment, and the quenching apparatus and the discharging position after the calciner are tight
Even, cooling treatment is carried out to the pelletizing for being used as cooling medium by wind, thus, burns grain table under swollen pottery high temperature for red mud
The softer situation in face, after the completion of haydite pellet roasting, quenching apparatus is directly entered, quenching is carried out to haydite, makes haydite table
Face quickly solidifies, and prevents from sticking together between haydite pelletizing while can also prevent haydite from shrinking.Thus, the apparatus system is complete in material
Air-cooled technique is used after into roasting, the adhesion rate between haydite can be reduced, improves the yield rate of product.The step（5）
In the condition of cooling treatment be：Ease up cold treatment including quenching, wherein, after the completion of haydite pellet roasting, it is directly entered
Quenching apparatus carries out quenching, and haydite is cooled into less than 400 DEG C；Then, the haydite that quenching is completed, filled into slow cooling
Put and carry out slow cooling processing, be cooled to room temperature, collecting packing.
Inventor has found, the invention provides a kind of apparatus system of red mud production sintering-expanded haydite, uses solid waste
For primary raw material, innovation utilizes the Fe in red mud2O3Resource, using Fe2O3Foaming agent is used as with carbon reaction, instead of tradition
Using carbonate as foaming agent, resource is saved, moreover, carbon not only plays Fe in pelletizing2O3Reducing agent can also serve as supplementing
The fuel of thermal source, has saved energy consumption；By the way of the apparatus system matches somebody with somebody fuel in, energy utilization can be made abundant, saved
Energy consumption；The apparatus system uses air-cooled technique after material completes roasting, can reduce the adhesion rate between haydite, improve production
The yield rate of product.
Embodiment 1
By 40 parts of red mud from sintering process, 30 parts of fine coal ashes, 15 parts of gangue, 10 parts of clay, blue 5 parts of carbon dust, simultaneously ball is respectively dried
After mill, by 200 mesh square hole screens, 8-12mm haydite wet bulb group is made in water spray in disc balling machine, by haydite wet bulb group
It is put into drying baker and dries, 105 DEG C of drying temperature, dry 24h, dried haydite pelletizing, be put into Muffle kiln roasting, is calcined
System is 1200 DEG C of maximum temperature, is calcined 30min.Less than 400 DEG C are chilled to after burning till.Manufactured haydite meets national standard GB/T
1743.1-2010 the requirement of standard, it can be used as concrete light aggregate.
Embodiment 2
By 60 parts of Bayer red mud, 20 parts of fine coal ashes, 10 parts of gangue, 5 parts of blue carbon dust, 5 parts of clay, simultaneously ball milling is respectively dried
Afterwards, by 200 mesh square hole screens, 10-15mm haydite wet bulb group is made in water spray in disc balling machine, and haydite wet bulb group is put
Enter in drying baker and dry, 105 DEG C of drying temperature, dry 24h, dried haydite pelletizing, be sent into drying grate and be calcined, roasting system
Spend for 1250 DEG C of maximum temperature, roasting 15min.Less than 400 DEG C are chilled to after burning till.Manufactured haydite meets national standard GB/T
1743.1-2010 the requirement of standard, it can be used as concrete light aggregate.
Embodiment 3
By 50 parts of Bayer red mud, 25 parts of fine coal ashes, 10 parts of gangue, 10 parts of blue carbon dust, 5 parts of clay, simultaneously ball milling is respectively dried
Afterwards, by 200 mesh square hole screens, 12-15mm haydite wet bulb group is made in water spray in disc balling machine, and haydite wet bulb group is put
Enter in drying baker and dry, 105 DEG C of drying temperature, dry 24h, dried haydite pelletizing, be sent into rotary hearth furnace and be calcined, roasting system
Spend for 1150 DEG C of maximum temperature, roasting 20min.Less than 400 DEG C are chilled to after burning till.Manufactured haydite meets national standard GB/T
1743.1-2010 the requirement of standard, it can be used as concrete light aggregate.
The present invention is described in detail above, used herein principle and embodiment of the embodiment to the application
It is set forth, the explanation of above example is only intended to help and understands the present processes and its core concept；Meanwhile for
Those of ordinary skill in the art, according to the thought of the application, change is had in specific embodiments and applications
Place, in summary, this specification content should not be construed as the limitation to the application.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
1. a kind of apparatus system of red mud production sintering-expanded haydite, it is characterised in that including batch mixer, disc balling machine, dry dress
Put, calciner and cooling device；
Wherein, the disc balling machine is connected with the batch mixer, handles to obtain for well mixed material to be carried out into ball processed
Wet bulb group；
The drying device is connected with the disc balling machine, and dry bulb group is obtained for wet bulb group to be dried into processing；
The calciner is connected with the drying device, and calcination process is carried out for dry bulb to be rolled into a ball；
The cooling device is connected with the calciner, makes its surface fast for the pelletizing after roasting first to be carried out into quenching
Rapid hardening is consolidated, then again slow cooling to room temperature.
A kind of 2. apparatus system of red mud production sintering-expanded haydite as claimed in claim 1, it is characterised in that the cooling device
Including quenching apparatus and annealing device, wherein, the quenching apparatus is connected with the calciner, for by the pelletizing after roasting
Carrying out quenching makes its surface quickly solidify, and the annealing device is connected with the quenching apparatus, for by the ball after chilling
Group carries out slow cooling processing down to room temperature.
A kind of 3. apparatus system of red mud production sintering-expanded haydite as claimed in claim 2, it is characterised in that the quenching apparatus
For air cooling equipment.
4. the apparatus system of a kind of red mud production sintering-expanded haydite as claimed in claim 1, it is characterised in that also include grinding dress
Put, the lapping device is connected with the entrance of the batch mixer, for material to be ground into processing.
5. the apparatus system of a kind of red mud production sintering-expanded haydite as claimed in claim 4, it is characterised in that also include drying dress
Put and screening plant；Wherein, the drying unit is connected with the entrance of the lapping device, for material to be carried out into drying and processing
After arrange in lapping device；The screening plant respectively with the exporting of the lapping device, the entrance of the batch mixer is connected, use
Material after by grinding carries out screening process, ensures that the material particles for carrying out mixing treatment meet to require.
A kind of 6. apparatus system of red mud production sintering-expanded haydite as claimed in claim 5, it is characterised in that the screening plant
Sieve be 0.074mm sieve.
A kind of 7. apparatus system of red mud production sintering-expanded haydite as claimed in claim 1, it is characterised in that the calciner
For Muffle furnace, drying grate, roller kilns, rotary kiln or rotary hearth furnace.
A kind of 8. producer of the apparatus system of red mud production sintering-expanded haydite using as any one of claim 1-7
Method, it is characterised in that comprise the following steps：
（1）Mixing treatment：Red mud, flyash, gangue, clay and blue carbon dust are weighed as raw material, is added in batch mixer
Row mixing treatment；
（2）Ball processing processed：Raw material after the completion of batch mixing is added in disc balling machine and carries out ball processing processed, adds water that haydite is made wet
Pelletizing；
（3）Drying process：Haydite wet bulb group is added in drying device, processing is dried, obtains haydite dry bulb group；
（4）Calcination process：Haydite dry bulb group is added in calciner, calcination process is carried out, obtains haydite pelletizing；
（5）Cooling treatment：After the completion of haydite pellet roasting, it is directly entered cooling device and carries out quenching, make haydite surface fast
Rapid hardening is consolidated, and is prevented from sticking together between haydite pelletizing while can also be prevented haydite from shrinking.
9. production method as claimed in claim 8, it is characterised in that step（1）In the content of each raw material be：Red mud 40-
60 parts, flyash 20-40 parts, gangue 10-20 parts, clay 5-10 parts and blue carbon dust 1-5 parts, wherein, using in red mud
Fe2O3Resource and carbon reaction are used as foaming agent；Also include pre-treatment step before each mixing raw materials：Each raw material sequentially enters baking
Equipment for drying carries out drying and processing, lapping device is ground processing, screening plant carries out screening process so that whole raw materials can
Mixing treatment is carried out in batch mixer by being entered back into after the 0.074mm sieves of the screening plant completely.
10. production method as claimed in claim 8, it is characterised in that step（2）The middle raw material by after the completion of batch mixing adds circle
In disk pelletizer, add water with the mode of spraying, 1-3mm mother bulb be made in disc balling machine, then, while spray plus water and
Add batch mixing, mother bulb is grown up, be made into 8-15mm haydite wet bulb group；Step（3）In the condition of drying process be：Drying
Temperature is 105-120 DEG C, drying time 12-24h；Step（4）In the condition of calcination process be：The highest temperature of calcination process
Spend between 1100-1300 DEG C, roasting time of the haydite pelletizing under highest sintering temperature is 5-30 minutes；Step（5）In
The condition of cooling treatment is：Ease up cold treatment including quenching, wherein, after the completion of haydite pellet roasting, it is directly entered chilling
Device carries out quenching, and haydite is cooled into less than 400 DEG C；Then, the haydite that quenching is completed, enters into annealing device
Row slow cooling is handled, and is cooled to room temperature, collecting packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712224.9A CN107353033A (en) | 2017-08-18 | 2017-08-18 | A kind of apparatus system of red mud production sintering-expanded haydite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710712224.9A CN107353033A (en) | 2017-08-18 | 2017-08-18 | A kind of apparatus system of red mud production sintering-expanded haydite |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665813A (en) * | 2018-12-19 | 2019-04-23 | 桂林理工大学 | A kind of raw material mixing match of red mud porcelain granule and preparation method thereof |
| CN114605165A (en) * | 2022-01-25 | 2022-06-10 | 河南郑矿机器有限公司 | Process method for preparing sintered and expanded ceramsite by using ceramic waste |
| CN114990329A (en) * | 2022-05-26 | 2022-09-02 | 中南大学 | Method for preparing high-strength lightweight aggregate by pellet roasting method |
-
2017
- 2017-08-18 CN CN201710712224.9A patent/CN107353033A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109665813A (en) * | 2018-12-19 | 2019-04-23 | 桂林理工大学 | A kind of raw material mixing match of red mud porcelain granule and preparation method thereof |
| CN114605165A (en) * | 2022-01-25 | 2022-06-10 | 河南郑矿机器有限公司 | Process method for preparing sintered and expanded ceramsite by using ceramic waste |
| CN114990329A (en) * | 2022-05-26 | 2022-09-02 | 中南大学 | Method for preparing high-strength lightweight aggregate by pellet roasting method |
| CN114990329B (en) * | 2022-05-26 | 2023-10-24 | 中南大学 | Method for preparing high-strength lightweight aggregate by pellet roasting method |
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