CN206635380U - A kind of accurate device controlled to solid reductant - Google Patents
A kind of accurate device controlled to solid reductant Download PDFInfo
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- CN206635380U CN206635380U CN201720385243.0U CN201720385243U CN206635380U CN 206635380 U CN206635380 U CN 206635380U CN 201720385243 U CN201720385243 U CN 201720385243U CN 206635380 U CN206635380 U CN 206635380U
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- storage bin
- valve
- solid reductant
- stablizer
- middle storage
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Abstract
A kind of accurate device controlled to solid reductant, provided with infundibulate stock storehouse and the sifter of top one time；Regrading device, blanking motor, standard-sized sheet sealed valve are sequentially provided with standby bin bottom；Standard-sized sheet sealed valve is connected with the middle storage bin of pressure relief valve and minusing weighing apparatus, supercharging air valve and supercharging wind voltage-stablizer are set in middle storage bin top manifold road, bottom is connected with fluidisation air port valve and fluidized wind voltage-stablizer, bottom is connected 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 utility model can accurately, stability contorting is to solid reductant, it is ensured that solid reductant blanking, course of conveying is smooth, does not block.
Description
Technical field
The utility model belongs to blister copper pyro-refining reduction technique field, and more particularly to anode furnace is accurately controlled to solid also
The device of former agent.
Background technology
In blister copper pyro-refining process, oxidation operation is carried out to copper water in anode furnace, by the sulphur oxidation removal in copper water extremely
After Industry code requirements, also inevitably Excessive lysis in copper water, reaches 8000ppm or so to the oxygen of simultaneous oxidation process；
By the oxygen removal of Excessive lysis in blister copper, must just to be reduced to copper water, the oxygen content in copper water is restored into 2000ppm
Hereinafter, the requirement of cast positive plate is reached.At present, the mainstream technology that domestic pharmaceutical industry reduces to copper water has natural gas reduction, heavy oil
Reduction, solid reductant reduction.Natural gas reduction has the advantages of sanitation and hygiene, environment-friendly, but its weak point 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 is with the cheap advantage of cost, but heavy oil is sticky, and its heating and thermal insulation need to be handled, and improves heavy oil in pipeline
Mobility, reduction process control is careless, it is easy to produces black smoke and pollutes operating environment.Solid reductant reducing process, has
Cost is low, effective rate of utilization is higher than natural gas, as long as being gathered dust operation tail gas, dust removal process, its operating environment is also more
It is friendly.
At present, domestic copper fire refining reduction process, the solid reductant used, is 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 moves, and occurs thin
Grain reducing agent is excessive or inclined coarse-grain reducing agent is excessive, and this often brings to anode furnace restoring operation blocks blanking conveyance conduit and ask
Topic, the labor intensity of cleaning being brought to operative employee, sometimes blanking has some setbacks intermittently, small when big during material delivery rate,
The effective rate of utilization deficiency of reducing agent, 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 raises, and waste heat boiler pressure drastically raises, and carbonomonoxide concentration is too high or not in flue gas
The powdery reducing agent being reduced is more, may cause flue that explosion accident occurs.
The content of the invention
The purpose of this utility model be to provide it is a kind of be applied to anode furnace blister refining reduction, can accurately, stability contorting
Device to solid reductant, it is ensured that solid reductant blanking, course of conveying is smooth, does not block.
To realize object above, technical scheme is as follows used by the utility model：
A kind of accurate device controlled to solid reductant, provided with infundibulate stock storehouse, it is provided with stock the top of the warehouse
Sifter is used to once sieve solid reductant, isolates bulk materials and other debris；In standby bin bottom
Leak is down sequentially provided with regrading device, blanking motor, standard-sized sheet sealed valve；Standard-sized sheet sealed valve and middle storage bin connect
Connect, be provided with pressure relief valve on middle storage bin, and by set on the top manifold road of Base top contact supercharging air valve and
Wind voltage-stablizer is pressurized, minusing weighing apparatus is additionally provided with middle storage bin top, also passes through bottom branch in middle storage bin bottom
Pipeline connects fluidized wind mouth valve and fluidized wind voltage-stablizer respectively, and middle storage bin bottom passes 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；Connected respectively by bottom manifold road in partitioned compartment type charging gear bottom end and carry coal air valve
With load coal wind voltage-stablizer, the other end is set to fertilizer outlet；The top manifold road, bottom branch pipe(tube), bottom manifold road respectively with
Compress wind house steward connects.
The utility model compared with prior art, has advantages below：
1. after carrying out screening process twice to solid reductant, bulk granularity material or debris are isolated, is screened
Go out reducing agent of the granularity in the range 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, and not only reduction efficiency improves, it is ensured that reduction process it is continuous, smooth, stably, avoid invalid disappear
The generation of consumption and potential safety hazard accident, more avoid reducing agent conveyance conduit be blocked the labor intensity that brings it is big the problems such as；
2. fed back by the weight of minusing weighing apparatus, 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, adjusts accurate feeding electric machine frequency, it is ensured that to solid reductant speed 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 potential safety hazard 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, and when motor operating can be achieved, storage bin is interior real in very short time with motor lower portion among top
Sealing is now relatively isolated, only motor operates solid reductant precisely quantitative in independent compartment and can passed freely through, and enters bottom,
Quantitative solid reductant is exported by fertilizer, is delivered in anode furnace after carrying the mixing of coal wind；
, can be actual according to Rotary Anode Furnace of different struck capacities etc. 3. the utility model device is controlled using total system
Operation requires that each device of system feedback opens situation, storage bin internal pressure to adjust being precisely controlled for solid reductant delivery rate
Power situation.Both can manual manipulation on the spot, remote control can be also carried out on computer interface.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model device；
Each label part is in figure：1. storehouse of stocking up, 2. sifters, 3. regrading devices, 4. blanking motors, 5. sealings
It is valve, 6. middle storage bins, 7. compress wind house stewards, 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. carry coal wind voltage-stablizer, 17. precisely feed variable-frequency motor, 18. accurate variable-frequency motor deceleration devices, 19. partitioned compartment types feed dress
Put, the outlet of 20. fertilizers.
Embodiment
The device of accurate control as shown in Figure 1 to solid reductant, provided with infundibulate stock storehouse 1, in stock Cang1Ding
Once sifter 2 is used to once sieve solid reductant portion's setting, isolates bulk materials and other debris；Standby
The bottom leak of feed bin 1 is down sequentially provided with regrading device 3, blanking motor 4, standard-sized sheet sealed valve 5；Standard-sized sheet sealed valve 5 with
Middle storage bin 6 is connected, and pressure relief valve 10 is provided with middle storage bin 6, and by the top manifold road of Base top contact
Supercharging air valve 8 and supercharging wind voltage-stablizer 9 are set, minusing weighing apparatus 11 are additionally provided with the middle top of storage bin 6, is stored up in centre
The bottom of feed bin 6 also connects fluidized wind mouth valve 12 and fluidized wind voltage-stablizer 13, the middle bottom of storage bin 6 respectively by bottom branch pipe(tube)
Portion is connected 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 connected respectively by bottom manifold road to be carried coal air valve 15 and carries coal wind voltage-stablizer 16, and the other end is set to fertilizer outlet
20；The top manifold road, bottom branch pipe(tube), bottom manifold road are connected with compress wind house steward 7 respectively.
Accurately control 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 debris,
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 middle 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. middle storage bin 6 is pressurized, closes pressure relief valve 10, open supercharging air valve 8 and supercharging wind voltage-stablizer
9, treat that pressure reaches 3~5Bar in middle storage bin, you can close supercharging air valve 8 and supercharging wind voltage-stablizer 9, open fluidized wind
Mouthful valve 12 and fluidized wind voltage-stablizer 13, make fluidized wind pressure stability in 4~5Bar, to the middle bottom solid reduction of storage bin 6
Agent carries out fluidization treatment；
D. after possessing injection solid reductant condition in anode furnace, open and carry coal air valve 15 to standard-sized sheet, carried by adjusting
Coal wind voltage-stablizer 16, regulation blast is in 3~4Bar, it is ensured that carries coal wind pressure and is slightly below pressure in middle storage bin, reaches and deliver coal
Pressure micro-balance, then start precisely feed variable-frequency motor 17, regulation motor running frequency, boundary is controlled in computer according to weighing apparatus
Feedback on face, control to solid reductant speed in the range 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 debris, step b are dusting cover point, only set the solid reductant of 1~5mm granularity sizes to sieve, remaining bulk
Material is isolated, it is ensured that middle 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 utility model can be in anode furnace refining reduction, accurate control solid reductant coal-supplying amount, under solid reductant
Expect that speed is relatively reasonable, reducing agent efficiently reduces in anode furnace, and solid reductant can be achieved and effectively reduce utilization rate 90%
More than.The process feedback of solid reductant accurate discharge, it can not only be fed back by minusing weighing apparatus, can also pass through sun
Pole kiln gas exports on-line temperature monitoring to feed 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 its stove
Content, other impurity contents reach oxidation end point requirements in copper water.Solid reductant injection pipeline is connected with body of heater.Will
Solid reductant is once sieved, and after isolating bulk materials or other debris, 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 middle storage bin 6,
Shown by minusing weighing apparatus 11, solid reductant weight can be suitable up to 2000kg or so in middle storage bin, stops
Blanking motor 4, close sealed valve 5.Reduced using double tanks, its mode of operation is just the same.Middle storage bin 6 is increased
Pressure, pressure relief valve 10 is closed, open boost valve 8 and voltage-stablizer 9, treat that pressure reaches 3.5Bar in middle storage bin, you can closed
Boost valve 8 and voltage-stablizer 9 are closed, opens fluidisation air valve 12 and fluidized wind voltage-stablizer 13, regulation fluidized wind voltage-stablizer pressure exists
4.0Bar, fluidization treatment is carried out to the middle bottom solid reductant of storage bin 6；Open and carry coal air valve 15 to standard-sized sheet, regulation load
The pressure of coal wind voltage-stablizer 16 is precisely fed variable-frequency motor 17, regulation motor running frequency, according to subtractive in 3.5Bar, then startup
Feedback of the method weighing apparatus on computer controlled interface, it is ensured that to solid reductant speed in 0.8kg/s or so speed, observe simultaneously
Flue gas on-line monitoring temperature ramp is no more than 10 DEG C/h, and double tanks are reduced simultaneously, the identical lower coal of control solid reductant
Speed, after 30min, among two storage bins to sufficient 1400kg or so solid reduction dosage when, you can stop reduction, stop
The precisely operation of feed variable-frequency motor 17, oxygen determination operation is carried out to blister copper in anode furnace or manual sampling is analyzed, as long as in copper water
Oxygen content in below 2000ppm, or manually see sample, reach cast, meet the anode copper that electrolysis requires, you can in anode furnace
Copper water carry out pour into a mould positive plate operation, realize solid reductant reduction process effective rate of utilization up to more than 90%.
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 its stove
Content, other impurity contents reach oxidation end point requirements in copper water.Solid reductant injection pipeline is connected with body of heater.Will
Solid reductant is once sieved, and after isolating bulk materials or other debris, 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 middle storage bin 6,
Shown by minusing weighing apparatus 11, solid reductant weight can be suitable up to 3500kg or so in middle storage bin 6, stops
Blanking motor 4, close sealed valve 5.Reduced using double tanks, its mode of operation is just the same.Middle storage bin 6 is increased
Pressure, pressure relief valve 10 is closed, open boost valve 8 and voltage-stablizer 9, treat that pressure reaches 4.5Bar in middle storage bin, you can closed
Boost valve 8 and voltage-stablizer 9 are closed, opens fluidisation air valve 12 and fluidized wind voltage-stablizer 13, regulation fluidized wind voltage-stablizer pressure exists
4.5Bar, fluidization treatment is carried out to the middle bottom solid reductant of storage bin 6；Open and carry coal air valve 15 to standard-sized sheet, regulation load
Then the pressure of coal wind voltage-stablizer 16 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 to solid reductant speed in 1.0kg/s or so speed, while observe flue gas and exist
Line monitoring temperature heating rate is no more than 10 DEG C/h, and double tanks are reduced simultaneously, the identical lower coal speed of control solid reductant,
After 60min, when storage bin has given foot 3000~3200kg solid reduction dosage among two, you can stop reduction, stop smart
The operation of quasi- feed variable-frequency motor, oxygen determination operation is carried out to blister copper in anode furnace or manual sampling is analyzed, as long as the oxygen in copper water
Content is in below 2000ppm, or manually sees sample, reaches cast, meets the anode copper that electrolysis requires, you can to the copper in anode furnace
Water carries out pouring into a mould positive plate operation, realizes solid reductant reduction process effective rate of utilization up to more than 90%.
Claims (1)
- A kind of 1. accurate device controlled to solid reductant, it is characterised in that：Stock up storehouse (1), stocking up provided with an infundibulate Set at the top of storehouse (1) once sifter (2) be used to once sieve solid reductant, isolate bulk materials and other Debris；Regrading device (3), blanking motor (4), standard-sized sheet sealed valve are down sequentially provided with stock storehouse (1) bottom leak (5)；Standard-sized sheet sealed valve (5) is connected with middle storage bin (6), pressure relief valve (10) is provided with middle storage bin (6), and lead to Cross and supercharging air valve (8) and supercharging wind voltage-stablizer (9) are set on the top manifold road of Base top contact, in middle storage bin (6) Top is additionally provided with minusing weighing apparatus (11), and also fluidized wind is connected respectively by bottom branch pipe(tube) in middle storage bin (6) bottom Mouth valve (12) and fluidized wind voltage-stablizer (13), middle storage bin (6) bottom is with partitioned compartment type charging gear (19) by precisely giving Expect variable-frequency motor (14) connection；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 connects respectively to be carried coal air valve (15) and carries coal wind voltage-stablizer (16), and the other end is set to fertilizer outlet (20)；The top Branch pipe(tube), bottom branch pipe(tube), bottom manifold road are connected with compress wind house steward (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385243.0U CN206635380U (en) | 2017-04-13 | 2017-04-13 | A kind of accurate device controlled to solid reductant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720385243.0U CN206635380U (en) | 2017-04-13 | 2017-04-13 | A kind of accurate device controlled to solid reductant |
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| Publication Number | Publication Date |
|---|---|
| CN206635380U true CN206635380U (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720385243.0U Withdrawn - After Issue CN206635380U (en) | 2017-04-13 | 2017-04-13 | A kind of accurate device controlled to solid reductant |
Country Status (1)
| Country | Link |
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| CN (1) | CN206635380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906370A (en) * | 2017-04-13 | 2017-06-30 | 云南锡业股份有限公司铜业分公司 | Device and its control method of a kind of precise control to solid reductant |
-
2017
- 2017-04-13 CN CN201720385243.0U patent/CN206635380U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906370A (en) * | 2017-04-13 | 2017-06-30 | 云南锡业股份有限公司铜业分公司 | Device and its control method of a kind of precise control to solid reductant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171114 Effective date of abandoning: 20180717 |