CN206256126U - A kind of system comprehensively utilized containing symplesite with carbide slag - Google Patents
A kind of system comprehensively utilized containing symplesite with carbide slag Download PDFInfo
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- CN206256126U CN206256126U CN201621196047.0U CN201621196047U CN206256126U CN 206256126 U CN206256126 U CN 206256126U CN 201621196047 U CN201621196047 U CN 201621196047U CN 206256126 U CN206256126 U CN 206256126U
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- entrance
- jevigating
- pulverizing
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Abstract
The utility model discloses a kind of system comprehensively utilized containing symplesite and carbide slag.The system includes：First pulverizing and jevigating device, the second pulverizing and jevigating device, the first mixing arrangement, the second mixing arrangement, the first shaped device, the second shaped device, drying unit, calciner and separator.Processed using the utility model system and contain symplesite and carbide slag, can effectively removed containing harmful element arsenic in symplesite, not only realize Industrial Solid Waste and the comprehensive utilization containing symplesite, and effectively reach dearsenification purpose, reduce production cost, improve economic benefit.
Description
Technical field
The utility model is related to system of the comprehensive utilization containing symplesite and carbide slag, belongs to the profit containing symplesite and carbide slag
Use field.
Background technology
With the development of steel and iron industry, China iron deposit resource is increasingly in short supply, some complicated difficult iron ore deposits by
Devoting Major Efforts To Developing is utilized.And the element arsenic in arsenic-containing ores, it is a kind of harmful element of steel and nonferrous metallurgy production.Arsenic can be caused
Composition of steel macrosegregation, can make steel surface produce open defect in hot-working, while reducing the welding performance of steel；Coloured smelting
In metal working industry, arsenic-containing material is mostly stored up or as three waste discharge, serious harm is all caused to human body and environment.Just
Because in this way, the application containing symplesite receives serious restriction.
Carbide slag is in the industrial products production process such as acetylene, polyvinyl chloride, polyvinyl alcohol, to be produced after calcium carbide hydrolysis
Sediment, Main Ingredients and Appearance is calcium hydroxide.Carbide slag is piled up not only take a large amount of soils for a long time, and has serious erosion to soil
Effect.Therefore, carbide slag is included the IIth class general industrial solid waste by national environmental protection portion, it is desirable to be managed.Mesh
Before, in production process produce carbide slag be as offal treatment, therefore, processing these carbide slag discarded objects not only needs
Substantial amounts of manpower and materials are spent, the waste of resource is also created.
The patent of the B of Publication No. CN 103331289 discloses a kind of Arsenic fixation method, comprises the following steps：(1) it is useless containing arsenic
The pretreatment of slag：Arsenic-containing waste residue is crushed to particle diameter less than 0.5cm, low temperature drying to moisture content is less than 5%；(2) the solid arsenic of iron-based
Reaction：Ball mill is put into after pretreated arsenic-containing waste residue is mixed by a certain percentage with hot solvent, iron-based curing agent to be consolidated
Arsenic reacts, and obtains final product the solid arsenic product of iron-based；(3) calcium base reinforcing reaction：As adding calcium base hardening agent in the solid arsenic product of above-mentioned iron-based, after
Continue carries out reinforcing reaction in ball mill, obtains finally consolidating arsenic product.Hot solvent is based on iron powder；Iron-based curing agent is selected from yellow iron
One or more in ore deposit, ferriferous oxide, ferric carbonate or iron hydroxide；Calcium base hardening agent is selected from calcium sulfate, calcium oxide or hydrogen-oxygen
Change calcium in one or more.But in the utility model, on the one hand, the material for the treatment of is arsenic-containing waste residue, rather than containing arsenic
Iron ore；On the other hand, it is hot solvent to use iron powder, while from iron-based curing agent, cannot be reclaimed to iron resource therein, is also
The waste of resource.
The method that dearsenification in a kind of Direct Reduction is disclosed in the B of Publication No. CN 103614554, the method bag
Include：(1) pelletizing：Arsenic-containing material is ground, reducing agent and binding agent mixing, pelletizing is added；(2) dry：Pelletizing is walked
The pelletizing of rapid gained carries out drying and processing；(3) it is reduced directly：Pelletizing obtained by pelletizing step is placed in reduction furnace and is heated to
950~1250 DEG C, 0.5~6 hour is incubated, controls furnace atmosphere, carry out direct reduction reactor, valuable metal while dearsenification
It is reduced.But in the utility model, arsenic is finally existed, it is necessary to be entered to tail gas containing arsenic using exhaust gas processing device in gaseous form
Row recycling.
A kind of solid arsenical and preparation method thereof is disclosed in the patent of the B of Publication No. CN 103952207 and using solid arsenic
The method of the solid arsenic of agent, Gu arsenical is by CaCO3With slaine composition, its preparation method is to be dried calcium carbonate, then by carbon
Sour calcium is positioned in metal salt solution, heating water bath 2~2.5 hours under the conditions of being 95 ± 5 DEG C in temperature, period with glass bar not
Disconnected stirring, filtering, are finally dried under the conditions of 100~110 DEG C, are ground to 180~300 mesh, and obtained solid arsenical is surrounded and watched
Area's rough surface, space is flourishing, and big aperture association, porosity and specific surface area are greatly improved, and in hot conditions
Under coal-fired to arsenic high arsenic fixation effect it is good, economy and environment comprehensive remarkable benefit.But in the utility model, on the one hand, Gu
Arsenical is directed to arsenic fire coal high, rather than containing symplesite；On the other hand, Arsenic fixation method is adsorptive gaseous arsenic, is given birth to rather than by arsenic
Into the form of solid salt.
Therefore, find a kind of reasonable utilization has great economic benefit and society's effect containing symplesite and the method for carbide slag
Benefit.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided one kind is using containing symplesite
With the system of carbide slag, the system using Industrial Solid Waste carbide slag to being removed containing harmful element arsenic in symplesite, it is not only real
Existing Industrial Solid Waste and the comprehensive utilization containing symplesite, and iron in agglomerates will exist in the form of Armco magnetic iron, follow-up
Separated with nonmagnetic solid-state arsenate in operation, effectively reach the purpose of dearsenification, reduce production cost, improve economic effect
Benefit.
In order to solve the above technical problems, the technical scheme that the utility model is taken is：
A kind of system comprehensively utilized containing symplesite and carbide slag, including：
First pulverizing and jevigating device, the first pulverizing and jevigating device includes reduction coal entrance, reduction discharge；
Second pulverizing and jevigating device, the second pulverizing and jevigating device includes that entrance containing symplesite, powder containing symplesite are exported；
First mixing arrangement, first mixing arrangement includes reduction coal powder entrance, binding agent entrance and the first mixing
Material outlet；
Second mixing arrangement, second mixing arrangement includes carbide slag entrance, the entrance of powder containing symplesite, binding agent entrance
And second compound outlet；
First shaped device, first shaped device includes neclear export in the first compound entrance, pelletizing；
Second shaped device, second shaped device includes the second compound entrance, pelletizing kernel entrance and is combined
Pelletizing is exported；
Drying unit, the drying unit includes composite pellet entrance, drying pelletizing outlet；
Calciner, the calciner includes drying pelletizing entrance, agglomerates outlet；
Separator, the separator includes agglomerates entrance, Armco magnetic iron outlet and namagnetic substance outlet.
Wherein, the reduction coal powder entrance phase for reducing discharge and the first mixing arrangement of the first pulverizing and jevigating device
Connection；
The outlet of powder containing symplesite of the second pulverizing and jevigating device and the entrance phase of powder containing symplesite of the second mixing arrangement
Connection；
The first compound outlet of first mixing arrangement is connected with the first compound entrance of the first shaped device；
The second compound outlet of second mixing arrangement is connected with the second compound entrance of the second shaped device；
Neclear export is connected with the pelletizing kernel entrance of the second shaped device in the pelletizing of first shaped device；
The composite pellet outlet of second shaped device is connected with the composite pellet entrance of drying unit；
The drying pelletizing outlet of the drying unit is connected with the drying pelletizing entrance of calciner；
The agglomerates outlet of the calciner is connected with the agglomerates entrance of separator.
The first pulverizing and jevigating device is the conventional device with pulverizing and jevigating function, such as vibromill etc.；
The second pulverizing and jevigating device is the conventional device with pulverizing and jevigating function, such as jaw crusher, roller
Formula disintegrating machine, vertical mill etc.；
First mixing arrangement is the conventional device with mixed function, such as horizontal strength batch mixer, vertical batch mixing
Machine etc.；
Second mixing arrangement is the conventional device with mixed function, such as tumbling mixer etc.；
First shaped device is disc balling machine；
Second shaped device is disc balling machine；
The drying unit is the conventional device with drying function, such as chain comb dryer, mesh belt dryer etc.；
The calciner is the conventional device that can be passed through gas roast, such as rotary hearth furnace, rotary kiln, roaster；
The separator is the conventional device with pulverizing and jevigating and weak magnetic function, such as ball mill or broken
Machine, with addition of weak magnetic separator.
The utility model further provides a kind of method of the application said system comprehensive utilization containing symplesite with carbide slag：
By reduction coal by reduction coal entrance enter the first pulverizing and jevigating device, through pulverizing and jevigating after, by reducing coal dust
Outlet discharge；
Containing symplesite by entrance containing symplesite enter the second pulverizing and jevigating device, through pulverizing and jevigating after, by iron containing arsenic
Miberal powder outlet discharge；
Reduction coal dust, binding agent enter the first mixing arrangement by entrance respectively, and material passes through the first compound after mixing
Outlet discharge；
First compound enters the first shaped device by entrance, obtains pelletizing kernel, and discharge by exporting；
Carbide slag, powder containing symplesite, binding agent enter the second mixing arrangement by entrance respectively, material mix after by the
The outlet discharge of two compounds；
Pelletizing kernel, the second compound enter the second shaped device by entrance respectively, obtain composite pellet and pass through
Mouth discharge；
Composite pellet enters drying unit by entrance, obtains drying pelletizing and is discharged by exporting；
Drying pelletizing enters calciner by entrance, obtains agglomerates and is discharged by exporting；
Agglomerates enter separator by entrance, and finally obtain Armco magnetic iron and namagnetic substance, pass through respectively
Mouth discharge.
Technical solutions of the utility model compared with prior art, have the advantages that：
1) Industrial Solid Waste carbide slag is used, removing is solved and be difficult to profit containing symplesite containing the harmful element arsenic in symplesite
Problem；
2) using solid-state dearsenification rather than gaseous state dearsenification, it is to avoid follow-up increase processing unit.
3) iron product for obtaining can be directly as follow-up iron-smelting raw material.
4) by using a kind of method and system comprehensively utilized containing symplesite and carbide slag of the present utility model, treatment
Afterwards, the iron product As contents for obtaining can be reduced to below 0.00 weight %, even as low as 0.009 weight %.
Brief description of the drawings
System schematic of Fig. 1 the utility model comprehensive utilization containing symplesite with carbide slag.
Specific embodiment
Further describe the utility model with reference to specific embodiment, advantage of the present utility model and feature will be with
Description and it is apparent.But these embodiments are only exemplary, do not constitute any limitation to scope of the present utility model.
It will be understood by those skilled in the art that can be to of the present utility model under without departing from spirit and scope of the present utility model
Details and form are modified or are replaced, but these modifications and replacement are each fallen within protection domain of the present utility model.
As shown in figure 1, the utility model provides a kind of system comprehensively utilized containing symplesite and carbide slag, including：
First pulverizing and jevigating device S100, the first pulverizing and jevigating device S100 includes reduction coal entrance, reduction coal dust
Outlet；
Second pulverizing and jevigating device S400, the second pulverizing and jevigating device S400 includes entrance containing symplesite, iron containing arsenic
Miberal powder is exported；
First mixing arrangement S200, the first mixing arrangement S200 include reduction coal powder entrance, binding agent entrance and
First compound is exported；
Second mixing arrangement S500, the second mixing arrangement S500 include the carbide slag entrance, entrance of powder containing symplesite, viscous
Knot agent entrance and the outlet of the second compound；
First shaped device S300, the first shaped device S300 includes neclear export in the first compound entrance, pelletizing；
Second shaped device S600, the second shaped device S600 includes the second compound entrance, pelletizing kernel entrance
And composite pellet outlet；
Drying unit S700, the drying unit S700 include composite pellet entrance, drying pelletizing outlet；
Calciner S800, the calciner S800 include drying pelletizing entrance, agglomerates outlet；
Separator S900, the separator S900 include agglomerates entrance, Armco magnetic iron outlet and nonmagnetics
Matter is exported.
Wherein, the reduction discharge and the reduction coal of the first mixing arrangement S200 of the first pulverizing and jevigating device S100
Powder entrance is connected；
The outlet of powder containing symplesite of the second pulverizing and jevigating device S400 is with the second mixing arrangement S500 containing symplesite
Powder entrance is connected；
The first compound outlet of the first mixing arrangement S200 enters with first compound of the first shaped device S300
Mouth is connected；
The second compound outlet of the second mixing arrangement S500 enters with second compound of the second shaped device S600
Mouth is connected；
The pelletizing kernel entrance phase of neclear export and the second shaped device S600 in the pelletizing of the first shaped device S300
Connection；
The composite pellet outlet of the second shaped device S600 is connected with the composite pellet entrance of drying unit S700；
The drying pelletizing outlet of the drying unit S700 is connected with the drying pelletizing entrance of calciner S800；
The agglomerates outlet of the calciner S800 is connected with the agglomerates entrance of separator S900.
The first pulverizing and jevigating device S100 is the conventional device with pulverizing and jevigating function, such as vibromill etc.；
The second pulverizing and jevigating device S400 is the conventional device with pulverizing and jevigating function, and for example Hubei Province formula is crushed
Machine, kibbler roll, vertical mill etc.；
The first mixing arrangement S200 is the conventional device with mixed function, such as horizontal strength batch mixer, vertical
Batch mixer etc.；
The second mixing arrangement S500 is the conventional device with mixed function, such as tumbling mixer etc.；
The first shaped device S300 is disc balling machine；
The second shaped device S600 is disc balling machine；
The drying unit S700 is the conventional device with drying function, such as chain comb dryer, mesh belt dryer etc.；
The calciner S800 is the conventional device that can be passed through gas roast, such as rotary hearth furnace, rotary kiln, roaster；
The separator S900 is the conventional device with pulverizing and jevigating and weak magnetic function, such as ball mill, broken
Machine is with addition of weak magnetic separator.
Further, there is provided a kind of utilization said system to the method for comprehensive utilization containing symplesite Yu carbide slag, such as Fig. 1 institutes
Show, including：
By reduction coal by reduction coal entrance enter the first pulverizing and jevigating device S100, through pulverizing and jevigating after, by reduction
Discharge is discharged；
Containing symplesite by entrance containing symplesite enter the second pulverizing and jevigating device S400, through pulverizing and jevigating after, by containing
The outlet discharge of symplesite powder；
The coal dust containing reduction, binding agent enter the first mixing arrangement S200 by entrance respectively, and material passes through first after mixing
Compound outlet discharge；
First compound enters the first shaped device S300 by entrance, obtains pelletizing kernel, and discharge by exporting；
Carbide slag, powder containing symplesite, binding agent enter the second mixing arrangement S500 by entrance respectively, and material leads to after mixing
Cross the outlet discharge of the second compound；
Pelletizing kernel, the second compound enter the second shaped device S600 by entrance respectively, obtain composite pellet and lead to
Cross outlet discharge；
Composite pellet enters drying unit S700 by entrance, obtains drying pelletizing and is discharged by exporting；
Drying pelletizing enters calciner S800 by entrance, and agglomerates are discharged by exporting；
Agglomerates enter separator S900 and finally obtain Armco magnetic iron and namagnetic substance by entrance, pass through respectively
Outlet discharge.
The method of comprehensive utilization containing symplesite and carbide slag in actual production is described in detail below, is specifically shown in reality
Apply a 1-4：
In the utility model, " % " expression " weight % ".
Embodiment 1
Certain contains symplesite, TFe contents 58.62%, As contents 0.314%；The volatile matter content 12.57% of certain reduction coal,
Ash content 10.08%；The CaO content 58.13% of the carbide slag.
By reduction coal pulverizing and jevigating into reduction coal dust, pelletizing kernel is made with binding agent, particle diameter is 3~5mm；Arsenic iron will be contained
According to the mol ratio of As and Ca it is 1 with carbide slag after ore deposit pulverizing and jevigating:3 carry out dispensing mixing, add binding agent as pelletizing outside
Layer, composite pellet is formed with pelletizing kernel, and composite pellet particle diameter is 6~8mm.Composite pellet is dried to moisture 5%, in oxygen
It is calcined under the volume % atmosphere of content 9,650 DEG C of sintering temperature, roasting time 45min.Atmosphere is monitored in roasting process,
Without the effusion of gas containing As.Agglomerates obtain magnetic iron product by separator, and product Iron grade 68.07%, iron is reclaimed
Rate 90%, wherein As contents 0.015%.
Embodiment 2
Certain contains symplesite, TFe contents 43.17%, As contents 0.411%；The volatile matter content 13.22% of certain reduction coal,
Ash content 11.2%；The CaO content 58.13% of the carbide slag.
After reduction coal pulverizing and jevigating, reduction coal dust is made pelletizing kernel with binding agent, and particle diameter is 4~6mm；Arsenic iron will be contained
According to the mol ratio of As and Ca it is 1 with carbide slag after ore deposit pulverizing and jevigating:5 carry out dispensing mixing, add binding agent as pelletizing outside
Layer, composite pellet is formed with pelletizing kernel, and composite pellet particle diameter is 7~10mm.Composite pellet is dried to moisture 4%, in oxygen
It is calcined under the volume % atmosphere of Gas content 12,900 DEG C of sintering temperature, roasting time 20min.Atmosphere is supervised in roasting process
Survey, without the effusion of gas containing As.Agglomerates obtain magnetic iron product by separator, and product Iron grade 66.57% is reclaimed
Rate 89%, wherein As contents 0.02%.
Embodiment 3
Certain contains symplesite, TFe contents 58.62%, As contents 0.314%；The volatile matter content 12.57% of certain reduction coal,
Ash content 10.08%；The CaO content 59.04% of the carbide slag.
After by reduction coal pulverizing and jevigating, pelletizing kernel is made with binding agent, particle diameter is 4~5mm；The broken mill of symplesite will be contained
According to the mol ratio of As and Ca it is 1 with carbide slag after thin:4 carry out dispensing mixing, binding agent are added as pelletizing outer layer, with ball
Group's kernel forms composite pellet, and composite pellet particle diameter is 8~9mm.Composite pellet is dried to moisture 3%, in oxygen content 10
It is calcined under volume % atmosphere, 800 DEG C of sintering temperature, roasting time 30min.Atmosphere is monitored in roasting process, is not had
Gas containing As is escaped.Pelletizing obtains magnetic iron product, product Iron grade 67.15%, the rate of recovery by separator after roasting
89%, wherein As contents 0.009%.
Embodiment 4
Certain contains symplesite, TFe contents 43.17%, As contents 0.411%；The volatile matter content 13.22% of certain reduction coal,
Ash content 11.2%；The CaO content 58.13% of the carbide slag.
After by reduction coal pulverizing and jevigating, pelletizing kernel is made with binding agent, particle diameter is 4~5mm；The broken mill of symplesite will be contained
According to the mol ratio of As and Ca it is 1 with carbide slag after thin:5 carry out dispensing mixing, binding agent are added as pelletizing outer layer, with ball
Group's kernel forms composite pellet, and composite pellet particle diameter is 8~9mm.Composite pellet is dried to moisture 2%, in oxygen content 18
It is calcined under volume % atmosphere, 600 DEG C of sintering temperature, roasting time 50min.Atmosphere is monitored in roasting process, is not had
Gas containing As is escaped.Pelletizing obtains magnetic iron product, product Iron grade 68.25%, the rate of recovery by separator after roasting
91%, wherein As contents 0.014%.
Claims (10)
1. it is a kind of to comprehensively utilize the system for containing symplesite and carbide slag, it is characterised in that including：
First pulverizing and jevigating device, the first pulverizing and jevigating device includes reduction coal entrance, reduction discharge；
Second pulverizing and jevigating device, the second pulverizing and jevigating device includes that entrance containing symplesite, powder containing symplesite are exported；
First mixing arrangement, first mixing arrangement includes that reduction coal powder entrance, binding agent entrance and the first compound go out
Mouthful；
Second mixing arrangement, second mixing arrangement include carbide slag entrance, the entrance of powder containing symplesite, binding agent entrance and
Second compound is exported；
First shaped device, first shaped device includes neclear export in the first compound entrance, pelletizing；
Second shaped device, second shaped device includes the second compound entrance, pelletizing kernel entrance and composite pellet
Outlet；
Drying unit, the drying unit includes composite pellet entrance, drying pelletizing outlet；
Calciner, the calciner includes drying pelletizing entrance, agglomerates outlet；
Separator, the separator includes agglomerates entrance, Armco magnetic iron outlet and namagnetic substance outlet；
Wherein, the reduction discharge of the first pulverizing and jevigating device is connected with the reduction coal powder entrance of the first mixing arrangement
Connect；
The outlet of powder containing symplesite of the second pulverizing and jevigating device is connected with the entrance of powder containing symplesite of the second mixing arrangement；
The first compound outlet of first mixing arrangement is connected with the first compound entrance of the first shaped device；
The second compound outlet of second mixing arrangement is connected with the second compound entrance of the second shaped device；
Neclear export is connected with the pelletizing kernel entrance of the second shaped device in the pelletizing of first shaped device；
The composite pellet outlet of second shaped device is connected with the composite pellet entrance of drying unit；
The drying pelletizing outlet of the drying unit is connected with the drying pelletizing entrance of calciner；
The agglomerates outlet of the calciner is connected with the agglomerates entrance of separator.
2. according to the system described in claim 1, it is characterised in that the first pulverizing and jevigating device is vibromill.
3. according to the system described in claim 1, it is characterised in that the second pulverizing and jevigating device is jaw crusher, roller
Formula disintegrating machine or vertical mill.
4. according to the system described in claim 1, it is characterised in that first mixing arrangement is horizontal strength batch mixer or vertical
Formula batch mixer.
5. according to the system described in claim 1, it is characterised in that second mixing arrangement is tumbling mixer.
6. according to the system described in claim 1, it is characterised in that first shaped device or the second shaped device are disk
Pelletizer.
7. according to the system described in claim 1, it is characterised in that the drying unit is that chain comb dryer or guipure are dried
Machine.
8. according to the system described in claim 1, it is characterised in that the calciner is the device that can be passed through gas roast；
Preferably rotary hearth furnace, rotary kiln, roaster.
9. according to the system described in claim 8, it is characterised in that the device for being passed through gas roast is rotary hearth furnace, returns
Rotary kiln or roaster.
10. according to the system described in claim 1, it is characterised in that the separator be ball mill or disintegrating machine, with addition of
Weak magnetic separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196047.0U CN206256126U (en) | 2016-10-28 | 2016-10-28 | A kind of system comprehensively utilized containing symplesite with carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621196047.0U CN206256126U (en) | 2016-10-28 | 2016-10-28 | A kind of system comprehensively utilized containing symplesite with carbide slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206256126U true CN206256126U (en) | 2017-06-16 |
Family
ID=59025718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621196047.0U Expired - Fee Related CN206256126U (en) | 2016-10-28 | 2016-10-28 | A kind of system comprehensively utilized containing symplesite with carbide slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206256126U (en) |
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2016
- 2016-10-28 CN CN201621196047.0U patent/CN206256126U/en not_active Expired - Fee Related
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