CN106906370B - It is a kind of to accurately control to the device and its control method of solid reductant - Google Patents
It is a kind of to accurately control to the device and its control method of solid reductant Download PDFInfo
- Publication number
- CN106906370B CN106906370B CN201710242373.3A CN201710242373A CN106906370B CN 106906370 B CN106906370 B CN 106906370B CN 201710242373 A CN201710242373 A CN 201710242373A CN 106906370 B CN106906370 B CN 106906370B
- Authority
- CN
- China
- Prior art keywords
- solid reductant
- storage bin
- intermediate storage
- valve
- stablizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/006—Pyrometallurgy working up of molten copper, e.g. refining
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0095—Process control or regulation methods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
It is a kind of to accurately control to the device and its control method of solid reductant, it is equipped with infundibulate stock storehouse and the sifter of top one time；It is equipped with regrading device, blanking motor, standard-sized sheet sealed valve successively in standby bin bottom；Standard-sized sheet sealed valve is connected with the intermediate storage bin of pressure relief valve and minusing weighing apparatus, in intermediate storage bin top manifold road, supercharging air valve and supercharging wind voltage-stablizer are set, lower part is connected with fluidisation air port valve and fluidized wind voltage-stablizer, bottom is connect with partitioned compartment type charging gear by being precisely fed variable-frequency motor, partitioned compartment type charging gear be linked in sequence accurate variable-frequency motor deceleration device and precisely feed variable-frequency motor, bottom end, which is connected with, to be carried coal air valve and carries coal wind voltage-stablizer, and the other end exports for fertilizer.The present invention can accurate, stability contorting to solid reductant, it is ensured that solid reductant blanking, transmission process is smooth, does not block.
Description
Technical field
The invention belongs to blister copper pyro-refining reduction technique field, more particularly to anode furnace is accurately controlled to solid reductant
Device and method.
Background technology
In blister copper pyro-refining process, oxidation operation is carried out to copper water in anode furnace, extremely by the sulphur oxidation removal in copper water
After Industry code requirements, also inevitably Excessive lysis reaches 8000ppm or so to the oxygen of simultaneous oxidation process in copper water；
By the oxygen removal of Excessive lysis in blister copper, must just to be restored to copper water, the oxygen content in copper water is restored to 2000ppm
Hereinafter, reaching the requirement of cast anode plate.Currently, the mainstream technology that domestic pharmaceutical industry restores copper water has natural gas reduction, heavy oil
Reduction, solid reductant reduction.Natural gas reduction has the advantages that sanitation and hygiene, environmental-friendly, but its shortcoming is exactly
Effect utilization rate is very low, and highest only has 30~40% effective rate of utilization, and process control requirements are higher, otherwise will go out safe thing
Therefore；Heavy oil reduction has low-cost advantage, but heavy oil is sticky, need to handle its heating and thermal insulation, improves heavy oil in pipeline
Mobility, reduction process control is careless, it is easy to generate black smoke and pollute operating environment.Solid reductant reduction method, has
At low cost, effective rate of utilization is higher than natural gas, as long as being gathered dust operation tail gas, dust removal process, operating environment is also more
It is friendly.
Currently, domestic copper fire refining reduction process, the solid reductant used are advised though fixing carbon content to it
It is fixed, but granularity is not required, manufacturer's process is more extensive, and solid reductant quality ordinary wave is dynamic, occurs thin
Grain reducing agent is excessive or inclined coarse-grain reducing agent is excessive, this, which often brings to anode furnace restoring operation, blocks blanking conveyance conduit and ask
Topic, the labor intensity of cleaning is brought to operative employee, and sometimes blanking has some setbacks intermittently, and when material delivery rate is small when big,
The effective rate of utilization of reducing agent is insufficient, and the reduction activity duration is long, influences normal production operation and cost.Blanking velocity is too fast
When, anode furnace tail flue gas temperature quickly increases, and waste heat boiler pressure drastically increases, and carbonomonoxide concentration is excessively high or not in flue gas
The powdery reducing agent being reduced is more, may cause flue that explosion accident occurs.
Invention content
The purpose of the present invention is to provide one kind be suitable for anode furnace blister refining reduction, can accurate, stability contorting to solid
The device and control method of body reducing agent, it is ensured that solid reductant blanking, transmission process is smooth, does not block.
In order to achieve the above object, the technical solution adopted in the present invention is as follows：
It is a kind of to accurately control to the device of solid reductant, it is equipped with infundibulate stock storehouse, is provided in stock the top of the warehouse
Sifter isolates bulk materials and other sundries for once being sieved to solid reductant；In standby bin bottom
Leak is equipped with regrading device, blanking motor, standard-sized sheet sealed valve successively down；Standard-sized sheet sealed valve connects with intermediate storage bin
Connect, on intermediate storage bin be equipped with pressure relief valve, and by the top manifold road of Base top contact be arranged supercharging air valve and
It is pressurized wind voltage-stablizer, minusing weighing apparatus is additionally provided on intermediate storage bin top, also passes through lower part branch in intermediate storage bin lower part
Pipeline is separately connected fluidisation air port valve and fluidized wind voltage-stablizer, intermediate storage bin bottom pass through accurate with partitioned compartment type charging gear
It is fed variable-frequency motor connection；Partitioned compartment type charging gear connects accurate variable-frequency motor deceleration device, accurate variable-frequency motor deceleration device
Connection is precisely fed variable-frequency motor；It is separately connected by bottom manifold road in partitioned compartment type charging gear bottom end and carries coal air valve
With load coal wind voltage-stablizer, the other end is set as fertilizer outlet；The top manifold road, lower part branch pipe(tube), bottom manifold road respectively with
Compress wind manifold connections.
The present invention accurately controls as follows to the method and step of solid reductant：
A. solid reductant is once sieved using a sifter, after isolating bulk materials or other sundries,
It is stored in stock storehouse；
B. after the solid reductant that stock storehouse Inside sifter is crossed is by regrading device, blanking motor, standard-sized sheet sealed valve, into
Enter in intermediate storage bin, solid reductant is stored to storage bin 2/3rds buy securities with all one's capital after, stop blanking motor, close sealing valve
Door；
C. intermediate storage bin is pressurized, closes pressure relief valve, supercharging air valve and supercharging wind voltage-stablizer are opened, in waiting for
Between in storage bin pressure reach 3~5Bar, you can close supercharging air valve and supercharging wind voltage-stablizer, open fluidisation air port valve and
Fluidized wind voltage-stablizer makes fluidized wind pressure stability in 4~5Bar, is carried out at fluidisation to intermediate storage bin lower part solid reductant
Reason；
D. it after having injection solid reductant condition in anode furnace, opens and carries coal air valve to standard-sized sheet, coal is carried by adjusting
Wind voltage-stablizer adjusts wind pressure in 3~4Bar, it is ensured that carries coal wind pressure and is slightly below pressure in intermediate storage bin, reaches pressure of delivering coal
Then micro-balance starts precisely feed variable-frequency motor, regulation motor running frequency, according to weighing apparatus on computer controlled interface
Feedback, control is to solid reductant rate within the scope of 0.5~1.0kg/s.
Above-mentioned steps a and step b is to carry out screening process to solid reductant at twice, and step a is coarse fraction, is isolated
Bulk materials or sundries, step b are dusting cover point, and the solid reductant of 1~5mm granularity sizes, which is only arranged, to be sieved, remaining is big
Block material is isolated, it is ensured that intermediate storage bin uniform blanking, smooth.Anode furnace smoke outlet on-line monitoring temperature described in step d
The heating rate of degree is 5~10 DEG C/h.
The present invention compared with prior art, has the following advantages：
1. after carrying out screening process twice to solid reductant, bulk granularity material or sundries are isolated, is screened
Go out reducing agent of the granularity within the scope of 1~5mm, the reducing agent in the particle size range is readily applicable to Rotary Anode Furnace blister copper pyrogenic process
Refining process, reduction use, not only reduction efficiency improve, it is ensured that reduction process it is continuous, smooth, stable, avoid disappearing in vain
The generation of consumption and security risk accident more avoids the problems such as blocked labor intensity brought of reducing agent conveyance conduit is big；
2. the weight by minusing weighing apparatus is fed back, in combination with the online temperature ramp case of reduction process flue gas, control
Online 5~10 DEG C/h of flue-gas temperature heating rate is made, accurate feeding electric machine frequency is adjusted, it is ensured that solid reductant rate most
In good 0.5~1.0kg/s velocity intervals, can further improve the effective rate of utilization of solid reductant, avoid effective consumption and
The generation of security risk accident；Set accurate feeding electric machine frequency can realize that a small range height frequency is adjusted, in motor
Portion is independent partitioned compartment type structure, it can be achieved that when motor operates, real in very short time with motor lower portion in storage bin among top
It is now relatively isolated sealing, only motor operates solid reductant precisely quantitative in independent compartment and can pass freely through, and enters lower part,
Quantitative solid reductant is exported by fertilizer, is delivered in anode furnace after carrying the mixing of coal wind；
3. apparatus of the present invention are controlled using total system, can be according to practical operations such as the Rotary Anode Furnaces of different struck capacities
It is required that adjust being precisely controlled for solid reductant delivery rate, each device of system feedback opens situation, pressure feelings in storage bin
Condition.Both can manual manipulation on the spot, remote control can be also carried out on computer interface.
Description of the drawings
Fig. 1 is the schematic diagram of apparatus of the present invention；
Each label component is in figure：1. storehouse of stocking up, 2. sifters, 3. regrading devices, 4. blanking motors, 5. sealings
It is valve, 6. intermediate storage bins, 7. compress wind manifold, 8. supercharging air valves, 9. supercharging wind voltage-stablizers, 10. pressure relief valves, 11. poor
Subtraction weighing apparatus, 12. fluidisation air port valves, 13. fluidized wind voltage-stablizers, 14. precisely feed variable-frequency motors, 15. carry coal air valves,
16. carrying coal wind voltage-stablizer, 17. precisely feed variable-frequency motor, 18. accurate variable-frequency motor deceleration devices, 19. partitioned compartment types feed dress
It sets, the outlet of 20. fertilizers.
Specific implementation mode
As shown in Figure 1 accurately controls to the device of solid reductant, infundibulate stock storehouse 1 is equipped with, in stock Cang1Ding
Once sifter 2 isolates bulk materials and other sundries to portion's setting for once being sieved to solid reductant；Standby
1 bottom leak of feed bin is equipped with regrading device 3, blanking motor 4, standard-sized sheet sealed valve 5 successively down；Standard-sized sheet sealed valve 5 with
Intermediate storage bin 6 connects, and pressure relief valve 10 is equipped on intermediate storage bin 6, and by the top manifold road of Base top contact
Setting supercharging air valve 8 and supercharging wind voltage-stablizer 9, minusing weighing apparatus 11 is additionally provided on 6 top of intermediate storage bin, is stored up in centre
6 lower part of feed bin is also separately connected fluidisation air port valve 12 and fluidized wind voltage-stablizer 13,6 bottom of intermediate storage bin by lower part branch pipe(tube)
Portion is connect with partitioned compartment type charging gear 19 by being precisely fed variable-frequency motor 14；Partitioned compartment type charging gear 19 connects accurate variable-frequency electric
Machine deceleration device 18, accurate variable-frequency motor deceleration device 18 connect precisely feed variable-frequency motor 17；In partitioned compartment type charging gear 19
Bottom end is separately connected by bottom manifold road to be carried coal air valve 15 and carries coal wind voltage-stablizer 16, and the other end is set as fertilizer outlet
20；The top manifold road, lower part branch pipe(tube), bottom manifold road are connect with compress wind manifold 7 respectively.
It accurately controls as follows to the method and step of solid reductant：
A. solid reductant is once sieved using a sifter 2, after isolating bulk materials or other sundries,
It is stored in stock storehouse 1；
B. the solid reductant that stock storehouse Inside sifter is crossed passes through regrading device 3, blanking motor 4, standard-sized sheet sealed valve 5
Afterwards, into intermediate storage bin 6, solid reductant is stored to storage bin 2/3rds buy securities with all one's capital after, stop blanking motor, close close
Seal valve 5；
C. intermediate storage bin 6 is pressurized, closes pressure relief valve 10, open supercharging air valve 8 and supercharging wind voltage-stablizer
9, wait for that pressure reaches 3~5Bar in intermediate storage bin, you can close supercharging air valve 8 and supercharging wind voltage-stablizer 9, open fluidized wind
Mouth valve 12 and fluidized wind voltage-stablizer 13, make fluidized wind pressure stability in 4~5Bar, to 6 lower part solid reduction of intermediate storage bin
Agent carries out fluidization treatment；
D. it after having injection solid reductant condition in anode furnace, opens and carries coal air valve 15 to standard-sized sheet, carried by adjusting
Coal wind voltage-stablizer 16 adjusts wind pressure in 3~4Bar, it is ensured that carries coal wind pressure and is slightly below pressure in intermediate storage bin, reaches and deliver coal
Pressure micro-balance, then starts precisely feed variable-frequency motor 17, and regulation motor running frequency controls boundary according to weighing apparatus in computer
Feedback on face, control is to solid reductant rate within the scope of 0.5~1.0kg/s.
Above-mentioned steps a and step b carries out screening process to solid reductant at twice, and step a is coarse fraction, isolates big
Block material or sundries, step b are dusting cover point, and the solid reductant of 1~5mm granularity sizes, which is only arranged, to be sieved, remaining bulk
Material is isolated, it is ensured that intermediate storage bin uniform blanking, smooth.Anode furnace smoke outlet on-line monitoring temperature described in step d
Heating rate be 5~10 DEG C/h.
The present invention can accurately control solid reductant coal-supplying amount, solid reductant blanking speed in anode furnace refining reduction
Spend it is relatively reasonable, reducing agent in anode furnace efficiently reduction, it can be achieved that solid reductant effectively restores utilization rate 90% or more.
The process feedback of solid reductant accurate discharge can not only be fed back by minusing weighing apparatus, can also pass through anode furnace
Exhanst gas outlet on-line temperature monitoring is fed back.
Application example one
One struck capacity have the Rotary Anode Furnaces of 350 tons of blister coppers, copper water has been oxidizing to 8000ppm oxygen in stove
Content, other impurity contents reach oxidation end point requirements in copper water.Solid reductant injection pipeline is connected with furnace body.It will
Solid reductant is once sieved, and after isolating bulk materials or other sundries, is stored in stock storehouse 1；Stock is sieved in storehouse
After the solid reductant divided is by regrading device 3, blanking motor 4, standard-sized sheet sealed valve 5, into intermediate storage bin 6,
Shown by minusing weighing apparatus 11, in intermediate storage bin solid reductant weight reach 2000kg or so can be suitable, stopping
Blanking motor 4 closes sealed valve 5.It is restored using double tanks, mode of operation is just the same.Intermediate storage bin 6 is increased
Pressure closes pressure relief valve 10, opens boost valve 8 and voltage-stablizer 9, waits for that pressure reaches 3.5Bar in intermediate storage bin, you can closes
Boost valve 8 and voltage-stablizer 9 are closed, fluidisation air valve 12 and fluidized wind voltage-stablizer 13 are opened, fluidized wind voltage-stablizer pressure is adjusted and exists
4.0Bar carries out fluidization treatment to 6 lower part solid reductant of intermediate storage bin；It opens and carries coal air valve 15 to standard-sized sheet, adjust and carry
Then 16 pressure of coal wind voltage-stablizer starts precisely feed variable-frequency motor 17, regulation motor running frequency, according to subtractive in 3.5Bar
Feedback of the method weighing apparatus on computer controlled interface, it is ensured that solid reductant rate in 0.8kg/s or so speed, observe simultaneously
Flue gas monitors temperature ramp on-line and is no more than 10 DEG C/h, and double tanks are carried out at the same time reduction, the identical lower coal of control solid reductant
Rate, after 30min, when two intermediate storage bins give foot 1400kg or so solid reduction dosage, you can stop restoring, stopping
The precisely operation of feed variable-frequency motor 17 carries out oxygen determination operation to blister copper in anode furnace or manual sampling is analyzed, as long as in copper water
Oxygen content in 2000ppm hereinafter, or manually see sample, reach cast, meet the anode copper that electrolysis requires, you can in anode furnace
Copper water carry out cast anode plate operation, realize solid reductant reduction process effective rate of utilization up to 90% or more.
Application example two
One struck capacity have the Rotary Anode Furnaces of 660 tons of blister coppers, copper water has been oxidizing to 8500ppm oxygen in stove
Content, other impurity contents reach oxidation end point requirements in copper water.Solid reductant injection pipeline is connected with furnace body.It will
Solid reductant is once sieved, and after isolating bulk materials or other sundries, is stored in stock storehouse 1；Stock is sieved in storehouse
After the solid reductant divided is by regrading device 3, blanking motor 4, standard-sized sheet sealed valve 5, into intermediate storage bin 6,
Shown by minusing weighing apparatus 11, in intermediate storage bin 6 solid reductant weight reach 3500kg or so can be suitable, stopping
Blanking motor 4 closes sealed valve 5.It is restored using double tanks, mode of operation is just the same.Intermediate storage bin 6 is increased
Pressure closes pressure relief valve 10, opens boost valve 8 and voltage-stablizer 9, waits for that pressure reaches 4.5Bar in intermediate storage bin, you can closes
Boost valve 8 and voltage-stablizer 9 are closed, fluidisation air valve 12 and fluidized wind voltage-stablizer 13 are opened, fluidized wind voltage-stablizer pressure is adjusted and exists
4.5Bar carries out fluidization treatment to 6 lower part solid reductant of intermediate storage bin；It opens and carries coal air valve 15 to standard-sized sheet, adjust and carry
Then 16 pressure of coal wind voltage-stablizer starts precisely feed variable-frequency motor 17 in 3.5Bar, regulation motor running frequency, according to weighing
Feedback of the device on computer controlled interface, it is ensured that solid reductant rate in 1.0kg/s or so speed, while observing flue gas and existing
Line monitoring temperature heating rate is no more than 10 DEG C/h, and double tanks are carried out at the same time reduction, controls the identical lower coal rate of solid reductant,
After 60min, when two intermediate storage bins have given foot 3000~3200kg solid reduction dosage, you can stop reduction, stop essence
The operation of quasi- feed variable-frequency motor carries out oxygen determination operation to blister copper in anode furnace or manual sampling is analyzed, as long as the oxygen in copper water
Content in 2000ppm hereinafter, or manually see sample, reach cast, meet the anode copper that electrolysis requires, you can to the copper in anode furnace
Water carries out cast anode plate operation, realizes solid reductant reduction process effective rate of utilization up to 90% or more.
Claims (4)
1. a kind of accurately control to the device of solid reductant, it is characterised in that：It stocks up storehouse (1), is stocking up equipped with an infundibulate
Once sifter (2) isolates bulk materials and other for once being sieved to solid reductant for setting at the top of storehouse (1)
Sundries；It is equipped with regrading device (3), blanking motor (4), standard-sized sheet sealed valve successively down in stock storehouse (1) bottom leak
(5)；Standard-sized sheet sealed valve (5) is connect with intermediate storage bin (6), pressure relief valve (10) is equipped on intermediate storage bin (6), and lead to
Setting supercharging air valve (8) and supercharging wind voltage-stablizer (9) on the top manifold road of Base top contact are crossed, in intermediate storage bin (6)
Top is additionally provided with minusing weighing apparatus (11), and also fluidized wind is separately connected by lower part branch pipe(tube) in intermediate storage bin (6) lower part
Mouth valve (12) and fluidized wind voltage-stablizer (13), intermediate storage bin (6) bottom is with partitioned compartment type charging gear (19) by precisely giving
Expect that variable-frequency motor (14) connects；Partitioned compartment type charging gear (19) connects accurate variable-frequency motor deceleration device (18), accurate variable-frequency electric
Machine deceleration device (18) connection is precisely fed variable-frequency motor (17)；Pass through bottom branch in partitioned compartment type charging gear (19) bottom end
Pipeline, which is separately connected, to be carried coal air valve (15) and carries coal wind voltage-stablizer (16), and the other end is set as fertilizer outlet (20)；The top
Branch pipe(tube), lower part branch pipe(tube), bottom manifold road are connect with compress wind manifold (7) respectively.
2. being accurately controlled to the method for solid reductant using device as described in claim 1, which is characterized in that step is such as
Under：
A. solid reductant is once sieved using a sifter (2), after isolating bulk materials or other sundries, storage
It is stored in stock storehouse (1)；
B. the solid reductant that stock storehouse Inside sifter is crossed passes through regrading device (3), blanking motor (4), standard-sized sheet sealed valve (5)
Afterwards, into intermediate storage bin (6), solid reductant is stored to storage bin 2/3rds buy securities with all one's capital after, stop blanking motor, close
Sealed valve (5)；
C. intermediate storage bin (6) is pressurized, closes pressure relief valve (10), open supercharging air valve (8) and supercharging wind voltage stabilizing
Device (9) waits for that pressure reaches 3~5Bar in intermediate storage bin, you can closes supercharging air valve and supercharging wind voltage-stablizer, opens fluidisation
Air port valve (12) and fluidized wind voltage-stablizer (13) make fluidized wind pressure stability in 4~5Bar, to intermediate storage bin (6) lower part
Solid reductant carries out fluidization treatment；
D. it after having injection solid reductant condition in anode furnace, opens and carries coal air valve (15) to standard-sized sheet, coal is carried by adjusting
Wind voltage-stablizer (16) adjusts wind pressure in 3~4Bar, it is ensured that carries coal wind pressure and is slightly below pressure in intermediate storage bin, reaches and deliver coal
Pressure micro-balance, then starts precisely feed variable-frequency motor (17), and regulation motor running frequency is controlled according to weighing apparatus in computer
Feedback on interface, control is to solid reductant rate within the scope of 0.5~1.0kg/s.
3. according to claim 2 accurately control to the method for solid reductant, which is characterized in that above-mentioned steps a and step
Rapid b is to carry out screening process to solid reductant at twice, and step a is coarse fraction, isolates bulk materials or sundries, step b
For dusting cover point, the solid reductant of 1~5mm granularity sizes, which is only arranged, to be sieved, remaining bulk materials is isolated, it is ensured that in
Between storage bin uniform blanking, smooth.
4. according to claim 2 or 3 accurately control to the method for solid reductant, which is characterized in that positive described in step d
The heating rate of pole kiln gas outlet on-line monitoring temperature is 5~10 DEG C/h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242373.3A CN106906370B (en) | 2017-04-13 | 2017-04-13 | It is a kind of to accurately control to the device and its control method of solid reductant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242373.3A CN106906370B (en) | 2017-04-13 | 2017-04-13 | It is a kind of to accurately control to the device and its control method of solid reductant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106906370A CN106906370A (en) | 2017-06-30 |
| CN106906370B true CN106906370B (en) | 2018-07-17 |
Family
ID=59209581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710242373.3A Active CN106906370B (en) | 2017-04-13 | 2017-04-13 | It is a kind of to accurately control to the device and its control method of solid reductant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106906370B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107385225B (en) * | 2017-09-13 | 2019-12-17 | 青海高原有色金属研发有限公司 | Aluminum melt purification system and aluminum alloy production system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4032582B2 (en) * | 1999-11-11 | 2008-01-16 | 三菱マテリアル株式会社 | Lance management method and management device for smelting furnace |
| CN2670376Y (en) * | 2003-12-18 | 2005-01-12 | 白银有色金属公司 | Continuous powder spraying apparatus for reduction of refined copper by firing process |
| CA2737313A1 (en) * | 2008-09-16 | 2010-03-25 | Technological Resources Pty. Limited | A material supply apparatus and process |
| CN201757599U (en) * | 2010-07-06 | 2011-03-09 | 东北大学 | Small-sized quantitative injection device for powder |
| CN105032769A (en) * | 2015-06-05 | 2015-11-11 | 云南锡业锡材有限公司 | Welding powder screening device and screening process thereof |
| CN206635380U (en) * | 2017-04-13 | 2017-11-14 | 云南锡业股份有限公司铜业分公司 | A kind of accurate device controlled to solid reductant |
-
2017
- 2017-04-13 CN CN201710242373.3A patent/CN106906370B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106906370A (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106906370B (en) | It is a kind of to accurately control to the device and its control method of solid reductant | |
| CN206635380U (en) | A kind of accurate device controlled to solid reductant | |
| CN109454088A (en) | A kind of garbage treating process and its system | |
| CN202744005U (en) | Acetylene sludge closed cycle gas force conveying system | |
| CN105180669A (en) | Quantitative explosion-proof adjusting material adding device for submerged electric furnace | |
| CN205079628U (en) | Explosion -proof adjustment material device that adds of burried arc furnace ration | |
| CN105402734A (en) | Waste pretreatment system | |
| CN214828993U (en) | Tar residue conveying system | |
| CN205138720U (en) | Manufacturing automation gas tightness detection device | |
| CN106829483A (en) | A kind of flyash gas delivery system | |
| CN220564687U (en) | Small-granularity copper-containing material treatment system for copper smelting | |
| CN102937372B (en) | Smashing drying treatment process and device | |
| CN209086037U (en) | A kind of bauxite robot sample-preparing system | |
| CN206139284U (en) | Feeding system of copper phthalocyanine powder | |
| CN206622426U (en) | Material handling apparatus | |
| CN205717236U (en) | The desulfurization deacidification system of one way of life junk-free incinerator | |
| CN217263420U (en) | Carbide powder feeding device | |
| CN214745005U (en) | Tail gas conveying system with buffer | |
| CN212442037U (en) | Salt processing is with high-efficient screening plant | |
| CN101307468A (en) | Feeding method and device of fluoride salt bin on electrolytic tank | |
| CN205119074U (en) | Discarded object pretreatment systems | |
| CN206841856U (en) | Pellet packing machine | |
| CN215587462U (en) | Organic rubbish biological treatment machine tail gas switches discharging equipment | |
| CN217263299U (en) | Weighing type activated carbon conveying system | |
| CN206255639U (en) | A kind of powder material transportation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |