CN109402381A - A kind of method that furnace production is burnt in fluidized bed furnace blow-on - Google Patents
A kind of method that furnace production is burnt in fluidized bed furnace blow-on Download PDFInfo
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- CN109402381A CN109402381A CN201811459709.2A CN201811459709A CN109402381A CN 109402381 A CN109402381 A CN 109402381A CN 201811459709 A CN201811459709 A CN 201811459709A CN 109402381 A CN109402381 A CN 109402381A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001354 calcination Methods 0.000 claims abstract description 21
- 239000000428 dust Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 12
- 238000009835 boiling Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 7
- 235000021050 feed intake Nutrition 0.000 claims description 7
- 230000017105 transposition Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000003337 fertilizer Substances 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 claims description 5
- 238000011105 stabilization Methods 0.000 claims description 5
- 239000012141 concentrate Substances 0.000 abstract description 7
- 238000006477 desulfuration reaction Methods 0.000 abstract description 3
- 230000023556 desulfurization Effects 0.000 abstract description 3
- 230000036632 reaction speed Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
- C22B1/04—Blast roasting
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of methods that furnace production is burnt in fluidized bed furnace blow-on, belong to fluidized bed furnace technical field, and method includes the following steps: to spread heater stage, temperature rise period and blow-on feeding stage.The present invention is in multiple start-stop furnace, continuous summing up experience, analyzes data, according to practical blow-on statistical data, the specific blow-on data that obtain.Technical solution of the present invention has been used in the multiple blow-on of 152 systems, belong to small wind to operate in a small amount, stability is good, the calcining that can make be burnt into early period is sufficiently reacted by means of air capacity with concentrate, reaction speed is fast, and fully reacting, desulfurization degree reaches 92.71%, under this air quantity, feeding quantity control condition, roaster production capacity reaches 89.40%.Invention achieves stable and high effective operations, up to up to standard, the purpose of energy-saving and emission-reduction of production.
Description
Technical field
The invention belongs to fluidized bed furnace technical fields, and in particular to a kind of method that furnace production is burnt in fluidized bed furnace blow-on.
Background technique
Northwest Lead Zinc smeltery handles zinc sulfide concentrates using fluidizing reactor, and major product is that the calcining after desulfurization is used for
It leaches removal of impurities and electrodeposition produces cathode zinc.Newly-built 152m2Fluidizing reactor is the world's largest monomer boil zinc abstraction roasting at present
Furnace is burnt, since operation more than a year of going into operation, due to various reasons, each halt production accident has occurred, in a short time without being to be sintered
It is that equipment fault leads to blowing out, the cycle of operation already becomes maximum bottleneck, it is difficult to which the production cycle problem broken through gives postorder wet process
System calcining supply belt is next difficult, and up to standard up to producing, the target to increase production and improve productivity can not achieve.
152 roasters are run more than a year, factory and workshop leader, the continuous groping experience such as technology backbone of production, from each
The operation of start-stop furnace in analyze concentrate ingredient, fluidized bed furnace production capacity, optimization roasting technique parameter, several aspects summary numbers such as removal of impurities
According to, rule is found, is accumulated experience, although having grasped certain data volume, but the analysis that shortage is deep in detail, in addition operation is most
Big furnace experience is insufficient, can not ensure longtime running.
Summary of the invention
The object of the present invention is to provide a kind of methods that furnace production is burnt in fluidized bed furnace blow-on, to solve to produce up in the prior art
The problem of less than operation steady in a long-term.
The technical solution adopted by the present invention are as follows:
A kind of method that furnace production is burnt in fluidized bed furnace blow-on, includes the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
20000-25000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness average out to
To 800mm with the completion of upper berth furnace；Siege bottom material thickness is thicker can to prevent seed calcining very few when feeding intake；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 1-2 bar oil gun every 4h transposition, the blow rate required is controlled in 20000-25000Nm3/ h, Secondary Air air quantity control
System is in 15000-23000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；Primary energy is lighted every 4h transposition
It enough preheats each point equilibrium in furnace, reduces the temperature difference between each point；The control blow rate required and Secondary Air air quantity facilitate the roasting in furnace
Sand seethes and the full combustion of oil gun；Due to the warm-up phase that this stage is calcining and furnace wall, the temperature of calcining and furnace wall is not
What is preferably risen is too fast or excessively high, excessively high that calcining can be made to progressively reach molten condition, thoroughly causes furnace bottom blast cap to block, is forced to stop production.
Calcining heating is too fast, and roasting can be made not grill thoroughly completely, seem and reached theoretical temperatures, and practical is that surface temperature is excessively high, this
Outside, heat up the too fast service life that can reduce furnace wall.
B, the first stage heats:
3 bar oil guns are increased to, the blow rate required is controlled in 23000-32000Nm3/ h, secondary air flow 15000-20000Nm3/ h, control
Discharge gate temperature stabilization rises to 520-550 DEG C；In temperature-rise period, due to air blast the lesser calcining of a small amount of granularity taken to it is subsequent
Dust collection device in, therefore the pressure of bellows will be slow reduction, and fluidized layer temperature can be gradually in rising trend after decline；This rank
Section blow rate required control is emphasis, and air quantity is excessively high, can make calcining it is excessive enter dust collecting system, reduce calcining amount in furnace, nothing
The normal blow-on of method, air quantity is too small, and complete fluidized state is not achieved in calcining, it is even more impossible to meet calcining heating, so design parameter selects
It selects critically important.In addition to the blow rate required, also want strict control secondary air flow, Secondary Air mainly provide it is combustion-supporting, be according to feelings of boiling in furnace
Condition timely adjustment secondary air flow.
C, second stage heats:
4 bar oil guns are increased to, the blow rate required is controlled in 42000-45000Nm3/ h, Secondary Air Boiler pressure control are in 20000-
28000Nm3/ h, control discharge gate temperature stabilization rise to 880-900 DEG C, prepare to feed intake；This stage, oil gun are all turned on, furnace
Interior positive pressure is larger, and suitably increase air quantity, the blow rate required will be combined with Secondary Air, according to boiling ramp case, controls temperature.
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 65000-
74000Nm3/ h, feeding quantity 45-50t/h keep oil pressure and secondary air flow in the step C with step 2；
When the temperature rising of each point in furnace is very fast, gradually go out oil gun；
When feed opening temperature is begun to decline, increase feeding quantity；
Air quantity is improved after the temperature of each point in furnace is stablized to 82000-85000Nm3/ h, feeding quantity keep 45-50t/h, fertilizer
Temperature than controlling each point in 1700:1-1900:1, furnace is stablized at 900-920 DEG C, and only discharge gate temperature is begun to ramp up, blow-on
It completes.Feed intake the production phase, into furnace in concentrate amount it is larger, it is theoretical according to roasting, select air quantity for 85000Nm3/ h or more,
152 fluidizing reactors boiling area is larger will to be made whole concentrate reach fluidized state not cause to partially sinter, and air quantity cannot be too low,
Air quantity is excessively high, so that complete reacted concentrate is admitted to waste heat boiler, causes following apparatus load excessive.
At interval of the big air blast 5-10min of 1h during paving furnace described in step 1, Boiler pressure control is in 40000-45000Nm3/h.
The purpose of this step progress big air blast is to guarantee that seed calcining can be evenly distributed on siege, everywhere thickness of feed layer basic one
It causes, facilitates the accuracy for judging bottom material thickness.
When discharge gate temperature described in step C rises slower in step 2, increase 1kg oil pressure, opening secondary valve area makes
Secondary Air increases 4000-8000Nm3/h。
The present invention having the beneficial effect that compared to the prior art
The present invention is in multiple start-stop furnace, continuous summing up experience, and analysis data are obtained according to practical blow-on statistical data
Specific blow-on data.Technical solution of the present invention has been used in the multiple blow-on of 152 systems, belongs to small wind and operates in a small amount, stability
Good, the calcining that can make be burnt into early period is sufficiently reacted by means of air capacity with concentrate, reaction speed is fast, fully reacting, desulfurization degree
Reach 92.71%, under this air quantity, feeding quantity control condition, roaster production capacity reaches 89.40%.Invention achieves stability and high efficiencies
Operation, up to up to standard, the purpose of energy-saving and emission-reduction of production.
Specific embodiment
The present invention will be further described With reference to embodiment.
A kind of method that furnace production is burnt in fluidized bed furnace blow-on, includes the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
20000-25000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness average out to
To 800mm with the completion of upper berth furnace, paving furnace is in the process at interval of the big air blast 5-10min of 1h, and Boiler pressure control is in 40000-45000Nm3/
h；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 1-2 bar oil gun every 4h transposition, the blow rate required is controlled in 20000-25000Nm3/ h, Secondary Air air quantity control
System is in 15000-23000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；
B, the first stage heats:
3 bar oil guns are increased to, the blow rate required is controlled in 23000-32000Nm3/ h, secondary air flow 15000-20000Nm3/ h, control
Discharge gate temperature stabilization rises to 520-550 DEG C；
C, second stage heats:
4 bar oil guns are increased to, the blow rate required is controlled in 42000-45000Nm3/ h, Secondary Air Boiler pressure control are in 20000-
28000Nm3/ h, control discharge gate temperature, which is stablized, rises to 880-900 DEG C, when discharge gate temperature rises slower, increases 1kg oil
Pressure, opening secondary valve area increases Secondary Air by 4000-8000Nm3/ h prepares to feed intake；
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 65000-
74000Nm3/ h, feeding quantity 45-50t/h keep oil pressure and secondary air flow in the step C with step 2；
When the temperature rising of each point in furnace is very fast, gradually go out oil gun；
When feed opening temperature is begun to decline, increase feeding quantity；
Air quantity is improved after the temperature of each point in furnace is stablized to 82000-85000Nm3/ h, feeding quantity keep 45-50t/h, fertilizer
Temperature than controlling each point in 1700:1-1900:1, furnace is stablized at 900-920 DEG C, and only discharge gate temperature is begun to ramp up, blow-on
It completes.
Embodiment 1:
A kind of method that furnace production is burnt in fluidized bed furnace blow-on, includes the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
20000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness averagely reaches
800mm spreads furnace and completes, and at interval of the big air blast 5min of 1h during paving furnace, Boiler pressure control is in 40000Nm3/h；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 1 bar oil gun every 4h transposition, the blow rate required is controlled in 20000Nm3/ h, Secondary Air Boiler pressure control exist
15000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；
B, the first stage heats:
3 bar oil guns are increased to, the blow rate required is controlled in 23000Nm3/ h, secondary air flow 15000Nm3/ h, control discharge gate temperature are steady
Surely 520 DEG C are risen to；
C, second stage heats:
4 bar oil guns are increased to, the blow rate required is controlled in 42000Nm3/ h, Secondary Air Boiler pressure control are in 20000Nm3/ h controls discharge
Mouth temperature, which is stablized, rises to 880 DEG C, when discharge gate temperature rises slower, increases 1kg oil pressure, opening secondary valve area makes Secondary Air
Increase 4000Nm3/ h prepares to feed intake；
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 65000Nm3/ h, adds
Doses 45t/h keeps oil pressure and secondary air flow in the step C with step 2；
When the temperature rising of each point in furnace is very fast, gradually go out oil gun；
When feed opening temperature is begun to decline, increase feeding quantity；
Air quantity is improved after the temperature of each point in furnace is stablized to 82000Nm3/ h, feeding quantity keep 45t/h, and fertilizer exists than control
1700:1, the temperature of each point is stablized at 900 DEG C in furnace, and only discharge gate temperature is begun to ramp up, and blow-on is completed.
Embodiment 2:
A kind of method that furnace production is burnt in fluidized bed furnace blow-on, includes the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
25000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness averagely reaches
1200mm is with the completion of upper berth furnace, and paving furnace is in the process at interval of the big air blast 10min of 1h, and Boiler pressure control is in 45000Nm3/h；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 2 bar oil guns every 4h transposition, the blow rate required is controlled in 25000Nm3/ h, Secondary Air Boiler pressure control exist
23000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；
B, the first stage heats:
3 bar oil guns are increased to, the blow rate required is controlled in 32000Nm3/ h, secondary air flow 20000Nm3/ h, control discharge gate temperature are steady
Surely 550 DEG C are risen to；
C, second stage heats:
4 bar oil guns are increased to, the blow rate required controls 45000Nm3/ h, Secondary Air Boiler pressure control are in 28000Nm3/ h controls discharge gate
Temperature, which is stablized, rises to 900 DEG C, when discharge gate temperature rises slower, increases 1kg oil pressure, opening secondary valve area increases Secondary Air
Add 8000Nm3/ h prepares to feed intake；
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 74000Nm3/ h, adds
Doses 50t/h keeps oil pressure and secondary air flow in the step C with step 2；
When the temperature rising of each point in furnace is very fast, gradually go out oil gun；
When feed opening temperature is begun to decline, increase feeding quantity；
Air quantity is improved after the temperature of each point in furnace is stablized to 85000Nm3/ h, feeding quantity keep 50t/h, and fertilizer exists than control
1900:1, the temperature of each point is stablized at 920 DEG C in furnace, and only discharge gate temperature is begun to ramp up, and blow-on is completed.
Embodiment 3:
A kind of method that furnace production is burnt in fluidized bed furnace blow-on, includes the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
23000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness averagely reaches
1000mm is with the completion of upper berth furnace, and paving furnace is in the process at interval of the big air blast 8min of 1h, and Boiler pressure control is in 43000Nm3/h；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 2 bar oil guns every 4h transposition, the blow rate required is controlled in 22000Nm3/ h, Secondary Air Boiler pressure control exist
20000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；
B, the first stage heats:
3 bar oil guns are increased to, the blow rate required is controlled in 28000Nm3/ h, secondary air flow 18000Nm3/ h, control discharge gate temperature are steady
Surely 530 DEG C are risen to；
C, second stage heats:
4 bar oil guns are increased to, the blow rate required is controlled in 43000Nm3/ h, Secondary Air Boiler pressure control are in 25000Nm3/ h controls discharge
Mouth temperature, which is stablized, rises to 890 DEG C, when discharge gate temperature rises slower, increases 1kg oil pressure, opening secondary valve area makes Secondary Air
Increase 6000Nm3/ h prepares to feed intake；
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 70000Nm3/ h, adds
Doses 48t/h keeps oil pressure and secondary air flow in the step C with step 2；
When the temperature rising of each point in furnace is very fast, gradually go out oil gun；
When feed opening temperature is begun to decline, increase feeding quantity；
Air quantity is improved after the temperature of each point in furnace is stablized to 83000Nm3/ h, feeding quantity keep 48t/h, and fertilizer exists than control
1800:1, the temperature of each point is stablized at 910 DEG C in furnace, and only discharge gate temperature is begun to ramp up, and blow-on is completed.
Claims (3)
1. a kind of method that furnace production is burnt in fluidized bed furnace blow-on, it is characterised in that include the following steps:
Step 1: paving heater stage:
Opened smoke-discharging machine and air blower, electricity gather dust by-passing flue at this time, gather dust ontology without electricity, and blow rate required control exists
20000-25000Nm3/ h is then turned on revert system equipment, carries out paving furnace by seed cabin blanking, when siege bottom material thickness average out to
To 800mm with the completion of upper berth furnace；
Step 2: the temperature rise period:
A, warm-up phase:
It is lighted once using 1-2 bar oil gun every 4h transposition, the blow rate required is controlled in 20000-25000Nm3/ h, Secondary Air air quantity control
System is in 15000-23000Nm3/ h, the temperature for controlling boiling bed and discharge gate are no more than 350 DEG C；
B, the first stage heats:
3 bar oil guns are increased to, blow rate required control is in 23000-32000Nm3/h, secondary air flow 15000-20000Nm3/h, control
Discharge gate temperature stabilization rises to 520-550 DEG C；
C, second stage heats:
4 bar oil guns are increased to, the blow rate required is controlled in 42000-45000Nm3/ h, Secondary Air Boiler pressure control are in 20000-28000Nm3/
H, control discharge gate temperature stabilization rise to 880-900 DEG C, prepare to feed intake；
Step 3: blow-on feeding stage:
Start to feed when the bright red of calcining firing, opening air blower air draught valve opening makes air quantity reach 65000-74000Nm3/
H, feeding quantity 45-50t/h keep oil pressure and secondary air flow in the step C with step 2；When in furnace each point temperature rise compared with
When fast, gradually go out oil gun；When feed opening temperature is begun to decline, increase feeding quantity；It is improved after the temperature of each point in furnace is stablized
Air quantity is to 82000-85000Nm3/ h, feeding quantity keep 45-50t/h, fertilizer each point in 1700:1-1900:1, furnace than control
Temperature stablize at 900-920 DEG C, only discharge gate temperature is begun to ramp up, blow-on complete.
2. the method that furnace production is burnt in fluidized bed furnace blow-on as described in claim 1, it is characterised in that: spread furnace process described in step 1
In at interval of the big air blast 5-10min of 1h, Boiler pressure control is in 40000-45000Nm3/h。
3. the method that furnace production is burnt in fluidized bed furnace blow-on as claimed in claim 1 or 2, it is characterised in that: step C institute in step 2
When the discharge gate temperature stated rises slower, increase 1kg oil pressure, opening secondary valve area increases Secondary Air by 4000-8000Nm3/
h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459709.2A CN109402381B (en) | 2018-11-30 | 2018-11-30 | Method for producing boiling furnace by blowing in and burning out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811459709.2A CN109402381B (en) | 2018-11-30 | 2018-11-30 | Method for producing boiling furnace by blowing in and burning out |
Publications (2)
| Publication Number | Publication Date |
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| CN109402381A true CN109402381A (en) | 2019-03-01 |
| CN109402381B CN109402381B (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811459709.2A Expired - Fee Related CN109402381B (en) | 2018-11-30 | 2018-11-30 | Method for producing boiling furnace by blowing in and burning out |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684364A (en) * | 2021-08-27 | 2021-11-23 | 新疆紫金有色金属有限公司 | Fluidized bed furnace roasting treatment method for fine-grained high-silicon low-iron zinc concentrate |
| CN114737048A (en) * | 2022-04-20 | 2022-07-12 | 白银有色集团股份有限公司 | Opening method of roasting furnace |
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| JPH08269884A (en) * | 1995-04-04 | 1996-10-15 | Mitsubishi Heavy Ind Ltd | Boiler furnace for recovering soda |
| CN101139654A (en) * | 2007-07-26 | 2008-03-12 | 曹传东 | Method for producing fine iron sand powder by using ferro-sulphur ore as raw material and equipment thereof |
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| CN107022680A (en) * | 2017-03-20 | 2017-08-08 | 云南驰宏锌锗股份有限公司 | A kind of all cold charge blow-in method with waste heat boiler fuming furnace |
-
2018
- 2018-11-30 CN CN201811459709.2A patent/CN109402381B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08269884A (en) * | 1995-04-04 | 1996-10-15 | Mitsubishi Heavy Ind Ltd | Boiler furnace for recovering soda |
| CN101139654A (en) * | 2007-07-26 | 2008-03-12 | 曹传东 | Method for producing fine iron sand powder by using ferro-sulphur ore as raw material and equipment thereof |
| CN101144121A (en) * | 2007-09-26 | 2008-03-19 | 广西铜业有限公司 | Solid blowing in method for fused bath smelting |
| CN102745651A (en) * | 2012-07-17 | 2012-10-24 | 威海恒邦化工有限公司 | Energy-saving and environmental-friendly method for heating fluidized bed furnace |
| CN106379866A (en) * | 2016-08-30 | 2017-02-08 | 襄阳泽东化工集团有限公司 | Energy-saving eco-friendly ignition method of pyrite-based acid making fluidized bed furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113684364A (en) * | 2021-08-27 | 2021-11-23 | 新疆紫金有色金属有限公司 | Fluidized bed furnace roasting treatment method for fine-grained high-silicon low-iron zinc concentrate |
| CN114737048A (en) * | 2022-04-20 | 2022-07-12 | 白银有色集团股份有限公司 | Opening method of roasting furnace |
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|---|---|
| CN109402381B (en) | 2020-08-14 |
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