CN205907309U - Preparation system of red mud carbon containing pelletizing - Google Patents
Preparation system of red mud carbon containing pelletizing Download PDFInfo
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- CN205907309U CN205907309U CN201620821589.6U CN201620821589U CN205907309U CN 205907309 U CN205907309 U CN 205907309U CN 201620821589 U CN201620821589 U CN 201620821589U CN 205907309 U CN205907309 U CN 205907309U
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Abstract
The utility model discloses a preparation system of red mud carbon containing pelletizing, include: drying equipment, mixing apparatus and former, drying equipment have red mud entry and the export of dry red mud, mixing apparatus has dry red mud entry, reductant entry, additive entry, pore creating material entry, binder entry and mixed material outlet, dry red mud entry links to each other with the export of dry red mud, the former has mixture inlet and the export of red mud carbon containing pelletizing, and mixture inlet links to each other with mixed material outlet. It has direct reduction advantage such as efficient, with low costs to utilize this department to control the red mud carbon containing pelletizing that obtains fully.
Description
Technical field
The utility model belongs to resource regeneration technical field.Specifically, the utility model is related to red mud containing carbon ball
The preparation system of group.
Background technology
Red mud, is that bauxite refines the discarded object producing in alumina process, because it is gained the name for crimson color mud.With
The continuous development of aluminum i ndustry, the annual 60000000 tons of red muds of output in the current whole world, the red mud discharge capacity of China is annual to be 4,500,000 tons
More than.Most of alumina producers are to pile up red mud or be poured into deep-sea in the world.Substantial amounts of iron, aluminium, sodium, calcium is contained in red mud
On metal, storing up of red mud does not only take up substantial amounts of soil and farmland, expends more stockyard and builds and maintenance cost, causes tight
The water pollution of weight, and waste substantial amounts of metals resources.Contained valency metal component such as fe in red mud2o3、al2o3、na2o、
tio2, the mostly relatively low alkali metal of economic worth, individually recycling is carried out with regard to a certain element and can not solve technique well
Economy and the huge problem of red mud storage it is necessary to using various metals combined recovery technology could be real realize red mud
Comprehensive utilization and minimizing.Therefore, being effectively recycled into as people's growing interest of the comprehensive regulation of red mud and its metals resources
Focus.
Agriculture, woods discarded object such as rice husk, peanut shell, wood chip, sawdust etc. are by absorbing the co in air2Grow with using luminous energy,
Belong to reproducible clean fuel, and will not additionally increase the co in air2, it is a kind of co2Neutral substance, had both had co2Zero
The feature of discharge.In addition, agriculture and forestry organic waste material is applied in ironmaking, it is possible to resolve agriculture and forestry organic waste material is burned due to rural area and produces in a large number
Gas and aerosol components and bring the problem of haze weather.
With a large amount of uses of Chinese Plastics product, waste plastics sharply increases, and " white pollution " has become environmental protection and dashed forward
The problem going out.Therefore, the comprehensive reutilization technology actively developing waste plastics utilizes to Environment Protect in China and Resource Rationalization
Have important practical significance.
Through retrieval existing document and patent, these red muds are processed by tunnel cave, rotary kiln, shaft furnace or rotary hearth furnace
Produce metallized pellet, and then the technique that mill ore magnetic selection produces metal iron powder.These techniques are required for raw material is become first
Type is processed, and in forming process, water to be added or liquid-containing binder are molded, the carbonaceous pelletizing obtaining ability after drying
Can be reduced, but because red mud granularity is meticulous, below 0.046mm particle is accounted for more than 85%.The pelletizing porosity of gained is not
Height, leads to that the dealkalize rate in follow-up Direct Reduction is low, reduction temperature is higher, and the recovery time is longer, thus increasing energy consumption.
Therefore, process carbonaceous pelletizing preparation technology for the tiny red mud direct-reduction of particle to improve.
Utility model content
The utility model is intended at least solve one of technical problem in correlation technique to a certain extent.For this reason, this reality
It is to propose a kind of preparation system of red mud carbonaceous pelletizing, the red mud carbon containing preparing using system with a new purpose
Pelletizing has direct-reduction efficiency high, low cost and other advantages.
According to one side of the present utility model, the utility model proposes a kind of preparation system of red mud carbonaceous pelletizing, bag
Include:
Drying equipment, described drying equipment has red mud entrance and red mud outlet is dried；
Mixing apparatus, described mixing apparatus have red mud entrance is dried, reducing agent entrance, additive entrance, pore creating material enter
Mouth, binding agent entrance and mixed material outlet；Described be dried red mud entrance with described be dried red mud outlet be connected；
Former, described former has mixed material entrance and the outlet of red mud carbonaceous pelletizing, described mixed material
Entrance is connected with the outlet of described mixed material.
In addition, can also be had attached as follows according to the preparation system of the red mud carbonaceous pelletizing of the utility model above-described embodiment
Plus technical characteristic:
In the utility model, described red mud entrance and Bayer process red mud export, red mud from sintering process outlet and combination method are red
At least one of mud outlet is connected.
In the utility model, reducing agent entrance is included in semi-coke entrance, coke inlet and mill coal entrance at least
One.
In the utility model, described additive entrance includes quick lime entrance, lime stone entrance, calcium carbonate entrance and white
At least one of marble entrance.
In the utility model, described pore creating material entrance includes rice husk entrance, peanut shell entrance, wood chip entrance and waste plastics
At least one of particle entrance.
In the utility model, described binding agent entrance is included for bentonite entrance and/or starch solution entrance.
In the utility model, described former is ball press.
Brief description
Fig. 1 is the structural representation of the preparation system of the red mud carbonaceous pelletizing according to one embodiment of the utility model.
Fig. 2 is the flow chart of the preparation method of the red mud carbonaceous pelletizing according to one embodiment of the utility model.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of described embodiment is shown in the drawings, wherein ad initio
To the element that same or similar label represents same or similar element or has same or like function eventually.Below by ginseng
The embodiment examining Description of Drawings is exemplary it is intended to be used for explaining the utility model, and it is not intended that to the utility model
Restriction.
According to one side of the present utility model, the utility model proposes a kind of preparation system of red mud carbonaceous pelletizing.
Describe the preparation system of the red mud carbonaceous pelletizing of the utility model specific embodiment below with reference to Fig. 1 in detail.
The preparation system of the red mud carbonaceous pelletizing according to the utility model specific embodiment includes: drying equipment 10, mixing
Equipment 20 and former 30.Wherein, drying equipment 10 has red mud entrance 11 and red mud outlet 12 is dried；Mixing apparatus 20 has
Red mud entrance 21, reducing agent entrance 22, additive entrance 23, pore creating material entrance 24, binding agent entrance 25 and mixture are dried
Material outlet 26；Red mud entrance 21 is dried and red mud outlet is dried 12 is connected；Former 30 has mixed material entrance 31 and red
Mud carbonaceous pelletizing outlet 32, mixed material entrance 31 is connected with mixed material outlet 26.
Thus adopt the red mud carbonaceous pelletizing preparation system of the utility model above-described embodiment, first with drying equipment 10
Red mud is dried；Secondly, red mud, reducing agent, additive, pore creating material, binding agent mixing will be dried using mixing apparatus 20
Uniformly；Finally, mixed material is carried out forming processes, you can obtain a kind of red mud carbonaceous pelletizing.It is prepared into using said system
To red mud carbonaceous pelletizing during the direct-reduction carrying out high-temperature roasting, pore creating material can decompose generation gas at high temperature
Body so that red mud carbonaceous pelletizing occur a large amount of spaces, consequently facilitating the reducibility gas such as co are to red mud carbonaceous pelletizing diffusion inside,
Thus significantly improving reduction efficiency and reducing degree, reducing energy consumption.
According to specific embodiment of the utility model, according to specific embodiment of the utility model, said system can be fitted
Red mud, the red mud of sintering process generation and combination method generation red mud for Bayer process produces alundum (Al2O3) generation is prepared into red
Mud carbonaceous pelletizing.The applicability of this system thus can be improved further.Thus, according to specific example of the present utility model, red
Mud entrance 11 can be connected with least one of Bayer process red mud outlet, red mud from sintering process outlet and the outlet of combination method red mud.
Specifically, produce aluminum oxide and almost entirely belong to alkaline process for industrial.Alkaline process production aluminum oxide is divided into again visits
Ear method, sintering process and combination method, and then the red mud producing is respectively Bayer process red mud, red mud from sintering process and combination method red mud.More
Specifically, such as sintering process produces aluminum oxide is bauxite, sodium carbonate and lime to be made slip be sintered obtaining sodium aluminate
Solution, then obtain aluminum hydroxide crystals through desiliconization purification and carbonation decomposition, more fired dehydration obtains alumina product.Produce
During the waste that obtains be red mud from sintering process.
According to specific embodiment of the utility model, in drying equipment, temperature is suitably arranged to 100～200 DEG C.Thus exist
At a temperature of 100～200 DEG C, process is dried to red mud, drying efficiency can be improved further.
According to specific embodiment of the utility model, reducing agent entrance 22 includes semi-coke entrance, coke inlet and non-coking
At least one of coal entrance.Can be in mixing apparatus 20 from there through semi-coke entrance, coke inlet and mill coal entrance
Add at least one in semi-coke, coke and mill coal.From there through in advance red mud being prepared by mixing into above-mentioned reducing agent
Pelletizing, can improve the contact area of red mud and reducing agent further, and then improve the reduction effect of red mud.And using blue
At least one in charcoal, coke and mill coal, as reducing agent, can improve reduction effect further.Above-mentioned reducing agent flat
All granularities can be 1-3mm.If reducing agent granularity is excessively thick, reduction reaction is insufficient；Granularity is meticulous, causes pelletizing hole relatively
Little, it is unfavorable for the carrying out of reduction reaction.The particle mean size controlling reducing agent can make reduction reaction fully effectively enter for 1-3mm
OK.
According to specific embodiment of the utility model, additive entrance 23 includes quick lime entrance, lime stone entrance, carbonic acid
At least one of calcium entrance and dolomite entrance.From there through lime inlet, lime stone entrance, calcium carbonate entrance and dolomite
Entrance can add at least one additive in quick lime, lime stone, calcium carbonate and dolomite in mixing apparatus 20.Thus
By in advance red mud and above-mentioned additive being prepared by mixing into pelletizing, reduction temperature can be reduced, promote the reduction of ferriferous oxide.
And using at least one in quick lime, lime stone, calcium carbonate and dolomite as additive, reduction can be improved further
Effect.The particle mean size of above-mentioned additive is no more than 0.074mm.Thus it is easy to pressure ball, and be conducive to entering of reduction reaction
OK.
According to specific embodiment of the utility model, pore creating material entrance 24 includes rice husk entrance, peanut shell entrance, wood chip enter
At least one of mouth and waste plastic particles entrance.From there through rice husk entrance, peanut shell entrance, wood chip entrance and waste plastics
Grain entrance can add at least one pore creating material in rice husk, peanut shell, wood chip and waste plastic particles in mixing apparatus 20.By
This is added thereto to above-mentioned pore creating material when preparing red mud carbonaceous pelletizing, and pore creating material is in follow-up directly the going back of red mud carbonaceous pelletizing
During former, charcoal can be fired into, and then volume-diminished, so that a large amount of holes in red mud carbonaceous pelletizing, and then is easy to reproducibility
Gas diffusion, to inside pelletizing, improves reduction effect.Specifically, the pore creating material of employing can be rice husk, peanut shell, wood chip, give up
At least one in plastic grain, and particle mean size is no more than 1mm.Thus not only can be reduced former using above-mentioned pore creating material
Expect cost, rice husk, peanut shell, the wood chip or waste plastic particles volume after high-temperature roasting can be substantially reduced simultaneously, Jin Erke
To improve pore-creating effect further.In addition, inventor also finds, the average grain diameter by control pore creating material is no more than 1mm, makes
Hole agent granularity is excessive, is unfavorable for that pelletizing is molded.The average grain diameter of pore creating material is therefore controlled to be not more than 1mm, can be in red mud carbon containing
Form the suitable space in aperture in pelletizing, enter the mouldability without significantly affecting red mud carbonaceous pelletizing and hardness.
In addition, adding the pore creating materials such as rice husk, peanut shell, wood chip, waste plastic particles during preparing red mud carbonaceous pelletizing
The effect that pore-creating improves reduction effect not only can be played, the charcoal that pore creating material is fired in Direct Reduction simultaneously also may be used
To play reduction further, such that it is able to substitute the reducing agent of a part, reduce reducing agent consumption.Therefore, using this reality
With the preparation system of the red mud carbonaceous pelletizing of new above-described embodiment, can prepare and there is the flourishing red mud in space containing carbon ball
Group, improves the follow-up reduction efficiency of red mud carbonaceous pelletizing, can also reduce reducing agent cost simultaneously further.
According to specific embodiment of the utility model, binding agent entrance 25 is included for bentonite entrance and/or starch solution
Entrance.Thus bentonite and/or starch can be added in mixing apparatus 20 by bentonite entrance and/or starch solution entrance
Solution is as binding agent.The molding effect preparing pelletizing thus can be improved further, in addition adopt bentonite and/or shallow lake
Powder solution can also improve the hardness of carbon containing red mud pelletizing further as binding agent.
According to specific embodiment of the utility model, former can be ball press.Prepare red mud using ball press to contain
During carbon pellets, ball press line pressure adopts 4～7 tons/centimetre.Thus molding effect can be improved further, and make red mud
Carbonaceous pelletizing has the hardness being suitable to be reduced directly.Due to adding a certain amount of pore creating material, the density ratio of pore creating material is relatively low, sends out
A person of good sense finds, using the line pressure of 4～7 tons/centimetre, can prepare the red mud carbonaceous pelletizing of hardness composite demand.
Understand the preparation system of the red mud carbonaceous pelletizing of the utility model above-described embodiment for convenience, below with reference to Fig. 2
Describe the side preparing red mud carbonaceous pelletizing using the preparation system of the red mud carbonaceous pelletizing of the utility model specific embodiment in detail
Method.
The method includes: using drying equipment, red mud is dried process, to obtain red mud is dried；Set using mixing
Standby the described red mud that is dried is mixed with reducing agent, additive, pore creating material and binding agent, to obtain mixed material；Using
Described mixed material is carried out forming processes by former, to obtain red mud carbonaceous pelletizing.
Thus adopt the red mud carbonaceous pelletizing preparation method of the utility model above-described embodiment, red mud will be dried first, go back
Former dose, additive, pore creating material, binding agent mix, then mixed material is carried out forming processes, you can obtain a kind of red mud
Carbonaceous pelletizing.The red mud carbonaceous pelletizing being prepared using said method during the direct-reduction carrying out high-temperature roasting,
Pore creating material can decompose generation gas at high temperature so that a large amount of spaces in red mud carbonaceous pelletizing, consequently facilitating the reduction such as co
Property gas to red mud carbonaceous pelletizing diffusion inside, thus significantly improving reduction efficiency and reducing degree, reducing energy consumption.
According to specific embodiment of the utility model, the red mud entrance of drying equipment and Bayer process red mud outlet, sintering process
Red mud outlet and combination method red mud export at least one of be connected.Thus, said method goes for Bayer process red mud, burning
At least one in connection red mud and combination method red mud.Specifically, produce aluminum oxide and almost entirely belong to alkali for industrial
Method.Alkaline process produces aluminum oxide and is divided into Bayer process, sintering process and combination method again, so the red mud producing respectively Bayer process red mud,
Red mud from sintering process and combination method red mud.More specifically, it is by bauxite, sodium carbonate and lime system that such as sintering process produces aluminum oxide
Become slip to be sintered obtaining sodium aluminate solution, then obtain aluminum hydroxide crystals through desiliconization purification and carbonation decomposition, then through roasting
Burn dehydration and obtain alumina product.The waste obtaining in production process is red mud from sintering process.The utility model above-described embodiment
The method of red mud carbonaceous pelletizing go at least one in Bayer process red mud, red mud from sintering process and combination method red mud.
The scope of application of the method thus can be improved further.
According to specific embodiment of the utility model, first, process is dried to above-mentioned red mud, specifically dried process
Temperature be 100～200 DEG C.Drying efficiency thus can be improved further.
According to specific embodiment of the utility model, the reducing agent of employing can be in semi-coke, coke and mill coal
At least one.From there through in advance red mud and above-mentioned reducing agent being prepared by mixing into pelletizing, red mud can be improved further and go back
Former dose of contact area, and then improve the reduction effect of red mud.And using at least one in semi-coke, coke and mill coal
As reducing agent, reduction effect can be improved further.The particle mean size of above-mentioned reducing agent can be 1-3mm.If reducing agent grain
Spend thick, then reduction reaction is insufficient；Granularity is meticulous, causes pelletizing hole less, is unfavorable for the carrying out of reduction reaction.Control also
Former dose of particle mean size can make reduction reaction fully effectively carry out for 1-3mm.
According to specific embodiment of the utility model, the additive of employing is quick lime, lime stone, calcium carbonate and dolomite
In at least one.From there through in advance red mud and above-mentioned additive being prepared by mixing into pelletizing, reduction temperature can be reduced, promote
Enter the reduction of ferriferous oxide.And using at least one in quick lime, lime stone, calcium carbonate and dolomite as additive,
Reduction effect can be improved further.The particle mean size of above-mentioned additive is no more than 0.074mm.Thus it is easy to pressure ball, and
Be conducive to the carrying out of reduction reaction.
According to specific embodiment of the utility model, in said method when preparing red mud carbonaceous pelletizing, it is added thereto to
Pore creating material, pore creating material, in the follow-up Direct Reduction of red mud carbonaceous pelletizing, can be fired into charcoal, and then volume-diminished, make
Obtain red mud carbonaceous pelletizing and a large amount of holes occur, and then be easy to reducibility gas and be diffused into inside pelletizing, improve reduction effect.Specifically
Ground, the pore creating material of employing can be at least one in rice husk, peanut shell, wood chip, waste plastic particles, and particle mean size is not
More than 1mm.Thus cost of material not only can be reduced using above-mentioned pore creating material, simultaneously rice husk, peanut shell, wood chip or waste plastics
Volume after high-temperature roasting for the grain can be substantially reduced, and then can improve pore-creating effect further.In addition, inventor also sends out
Existing, it is no more than 1mm by the average grain diameter controlling pore creating material, pore creating material granularity is excessive, be unfavorable for that pelletizing is molded.Therefore control
The average grain diameter of pore creating material is not more than 1mm, can form the suitable space in aperture, enter without obvious in red mud carbonaceous pelletizing
The mouldability of ground impact red mud carbonaceous pelletizing and hardness.
In addition, adding the pore creating materials such as rice husk, peanut shell, wood chip, waste plastic particles during preparing red mud carbonaceous pelletizing
The effect that pore-creating improves reduction effect not only can be played, the charcoal that pore creating material is fired in Direct Reduction simultaneously also may be used
To play reduction further, such that it is able to substitute the reducing agent of a part, reduce reducing agent consumption.Therefore, using this reality
With the preparation method of the red mud carbonaceous pelletizing of new above-described embodiment, can prepare and there is the flourishing red mud in space containing carbon ball
Group, improves the follow-up reduction efficiency of red mud carbonaceous pelletizing, can also reduce reducing agent cost simultaneously further.
According to specific embodiment of the utility model, the binding agent of employing can be bentonite and/or starch solution.Thus
The molding effect preparing pelletizing can be improved further, in addition adopt bentonite and/or starch solution as binding agent also
The hardness of carbon containing red mud pelletizing can be improved further.
According to specific embodiment of the utility model, the raw material proportioning preparing red mud carbonaceous pelletizing can be: red mud 100 weight
Amount part, reducing agent 5～10 weight portion, additive 5～10 weight portion, binding agent 2～10 weight portion, pore creating material 3～10 weight portion.
Red mud carbonaceous pelletizing can effectively be prepared thus in accordance with said ratio.And the red mud consumption in above-mentioned raw materials, bonding
The addition of agent, additive and pore creating material needs to consider the porosity that red mud carbonaceous pelletizing is formed in Direct Reduction
And the hardness of pelletizing etc..Inventor finds, is being reduced directly by the red mud carbonaceous pelletizing being prepared using said ratio
During formed porosity can reach 30-40 volume %.Generally red mud carbonaceous pelletizing is to have some spaces in itself, but hole
Gap rate is relatively low.By according to above-mentioned raw materials and proportioning to red mud in add pore creating material after, its porosity can be effectively improved.Thus may be used
So that reducibility gas are fully diffused into the inside of pelletizing, and then significantly improve reduction effect.
According to specific embodiment of the utility model, the forming method preparing red mud carbonaceous pelletizing can be pressure ball, and
Ball press line pressure adopts 4～7 tons/centimetre.Thus molding effect can be improved further, and red mud carbonaceous pelletizing is had
There is the hardness being suitable to be reduced directly.Due to adding a certain amount of pore creating material, the density ratio of pore creating material is relatively low, and inventor finds,
Using the line pressure of 4～7 tons/centimetre, the red mud carbonaceous pelletizing of hardness composite demand can be prepared.
According to specific embodiment of the utility model, the red mud carbonaceous pelletizing obtaining after forming processes can also send further
Go drying, obtain the red mud carbonaceous pelletizing of drying.The red mud carbonaceous pelletizing being thus dried directly can carry out direct-reduction process,
Thus improving direct-reduction treatment effeciency.
Embodiment 1
The full weight of iron fraction of certain Bayer process red mud is 32.61%, and below 0.046mm particle accounts for 87%, and reducing agent adopts
Semi-coke (fixed carbon 83%, ash content 9%), granularity is 2mm.According to Bayer process red mud after it is dried at 100 DEG C: semi-coke: lime
Stone: bentonite=100:5:5:4 carries out dispensing and mixes, mixed material is carried out pressure ball, ball press line pressure be 6 tons/
Centimetre.A kind of red mud carbonaceous pelletizing is can get after the pelletizing of gained is dried.The carbonaceous pelletizing of gained is fed and turns bottom
In stove, it is heated to 1100 DEG C～1200 DEG C, after keeping 30～40 minutes, discharge high-temperature metal pellet, metallization from rotary hearth furnace
Rate reaches 82%.
Embodiment 2
The full weight of iron fraction of certain Bayer process red mud is 32.61%, and below 0.046mm particle accounts for 87%, and reducing agent adopts
Semi-coke (fixed carbon 83%, ash content 9%), granularity is 2mm.According to Bayer process red mud after it is dried at 100 DEG C: semi-coke: lime
Stone: bentonite: rice husk=100:5:5:4:6 carries out dispensing and mixes, mixed material is carried out pressure ball, ball press line pressure
For 6 tons/centimetre.A kind of red mud carbonaceous pelletizing is can get after the pelletizing of gained is dried.The carbonaceous pelletizing of gained is given
Enter in rotary hearth furnace, be heated to 1100 DEG C～1200 DEG C, after keeping 30～40 minutes, discharge high-temperature metal pellet from rotary hearth furnace,
Degree of metalization is up to 92%.With not plus compared with pore creating material, under the same terms, the degree of metalization index of the metallized pellet of gained is relatively
High.
Embodiment 3
The full weight of iron fraction of certain Bayer process red mud is 32.61%, and below 0.046mm particle accounts for 87%, and reducing agent adopts
Semi-coke (fixed carbon 83%, ash content 9%), granularity is 2mm.According to Bayer process red mud after it is dried at 100 DEG C: semi-coke: lime
Stone: bentonite: waste plastic particles=100:5:5:4:6 carries out dispensing and mixes, mixed material is carried out pressure ball, ball press
Line pressure is 6 tons/centimetre.A kind of red mud carbonaceous pelletizing is can get after the pelletizing of gained is dried.Carbon containing by gained
Pelletizing feeds in rotary hearth furnace, is heated to 1100 DEG C～1200 DEG C, after keeping 30～40 minutes, discharges high temperature metallization from rotary hearth furnace
Pelletizing, degree of metalization is up to 95%.Compared with not adding pore creating material, under the same terms, the degree of metalization of the metallized pellet of gained
Index is higher.Simultaneously because waste plastic particles carbon containing is higher, preferably, therefore metallized pellet can obtain higher gold to reproducibility
Belong to rate.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " Gu
Fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be
It is mechanically connected or electrically connect；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning in the utility model for the above-mentioned term.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score
Can be the first and second feature directly contacts, or the first and second features pass through intermediary mediate contact.And, first is special
Levy second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " permissible
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State that be not necessarily referring to is identical embodiment or example.And, the specific features of description, structure, material or feature can be
Combine in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area
The feature of the different embodiments described in this specification or example and different embodiment or example can be carried out by technical staff
In conjunction with and combination.
Although of the present utility model embodiment has been shown and described above it is to be understood that above-described embodiment is
Exemplary it is impossible to be interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
Interior above-described embodiment can be changed, change, replacing and modification.
Claims (7)
1. a kind of preparation system of red mud carbonaceous pelletizing is it is characterised in that include:
Drying equipment, described drying equipment has red mud entrance and red mud outlet is dried；
Mixing apparatus, described mixing apparatus has red mud entrance, reducing agent entrance, additive entrance, pore creating material entrance, viscous is dried
Knot agent entrance and mixed material outlet；Described be dried red mud entrance with described be dried red mud outlet be connected；
Former, described former has mixed material entrance and the outlet of red mud carbonaceous pelletizing, described mixed material entrance
It is connected with the outlet of described mixed material.
2. according to claim 1 the preparation system of red mud carbonaceous pelletizing it is characterised in that described red mud entrance and Bayer process
At least one of red mud outlet, red mud from sintering process outlet and the outlet of combination method red mud are connected.
3. according to claim 1 the preparation system of red mud carbonaceous pelletizing it is characterised in that reducing agent entrance includes semi-coke enters
At least one of mouth, coke inlet and mill coal entrance.
4. according to claim 1 red mud carbonaceous pelletizing preparation system it is characterised in that described additive entrance include give birth to
At least one of lime inlet, lime stone entrance, calcium carbonate entrance and dolomite entrance.
5. according to claim 1 the preparation system of red mud carbonaceous pelletizing it is characterised in that described pore creating material entrance includes rice
At least one of shell entrance, peanut shell entrance, wood chip entrance and waste plastic particles entrance.
6. according to claim 1 red mud carbonaceous pelletizing preparation system it is characterised in that described binding agent entrance include for
Bentonite entrance and/or starch solution entrance.
7. according to claim 1 red mud carbonaceous pelletizing preparation system it is characterised in that described former be pressure ball
Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620821589.6U CN205907309U (en) | 2016-08-01 | 2016-08-01 | Preparation system of red mud carbon containing pelletizing |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119533A (en) * | 2016-08-01 | 2016-11-16 | 江苏省冶金设计院有限公司 | The preparation method of red mud carbonaceous pelletizing and preparation system |
-
2016
- 2016-08-01 CN CN201620821589.6U patent/CN205907309U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119533A (en) * | 2016-08-01 | 2016-11-16 | 江苏省冶金设计院有限公司 | The preparation method of red mud carbonaceous pelletizing and preparation system |
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