CN207619496U - Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels - Google Patents
Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels Download PDFInfo
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- CN207619496U CN207619496U CN201721549593.2U CN201721549593U CN207619496U CN 207619496 U CN207619496 U CN 207619496U CN 201721549593 U CN201721549593 U CN 201721549593U CN 207619496 U CN207619496 U CN 207619496U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses electric furnace coal-gas recoverings in a kind of RKEF methods smelting ferronickel to utilize device, it includes electric furnace；Electric furnace is interconnected with clarifier；The top of clarifier is connected to hot-blast stove；Coal gas escape pipe is equipped with isocon；Isocon is connected to Water seal of preventing flashback tank；Water seal of preventing flashback tank is equipped with nitrogen inlet, water inlet pipe and blow-off pipe；The top of Water seal of preventing flashback tank is connected to water filter tank；The internal perisporium of water filter tank is equipped with water mist sprinkling pipe I；The periphery wall at tube bottom of collaborating end is equipped with water mist sprinkling pipe II；Water mist sprinkling pipe I, II is arranged in alternating expression；The top of water filter tank is equipped with net gas outlet pipe, and net gas outlet pipe is connected to burner nozzle.Coal gas is shunted by isocon, then enters burner nozzle by Water seal of preventing flashback tank and water filter tank, so as to the combustion reaction into rotary kiln；Whole process can make full use of Gas Resource, reduce waste, save considerable cost, and purified flue gas meets discharge standard, environmentally safe.
Description
Technical field
The utility model belongs to gas cleaning device technical field, and in particular to a kind of mine using RKEF method smelting ferronickels
Electrothermal stove gas purification retracting device.
Background technology
Currently, as long as the processing method of lateritic nickel ore has two kinds of smelting processes of pyrogenic process and wet method, wherein pyrogenic process work both at home and abroad
There are mainly four types of skills：Sintering-blast furnace process（BF methods）, rotary kiln-electro-smelting flow（RKEF methods）；Dominica Ying Qiao is perpendicular
Stove-eaf process；Japanese big rivers and mountains rotary kiln for directly reducing method.Wherein, RKEF methods are the elder generations of current pyrogenic attack lateritic nickel ore
Into and maturation process, be widely used.
During producing ferronickel using RKEF methods, the coal gas containing flue dust of semi-closed electric stove output is dropped through gravity
Dirt cools, is sent directly into hot-blast stove by pipeline after the purified treatments such as bag-type dust, contains for drying after temperature regulating
34% or so lateritic nickel ore of free water makes free water management carry out dispensing in 20-25% or so and is carried out in advance also to enter rotary kiln
Coal gas can be only used for drying material by original roasting, such mode, and when hot-blast stove stove calorific value dosage is few, the demand of coal gas has
Limit, a large amount of coal gas are only handled by diffusing outside flue row, not only waste of energy but also have polluted air.
Invention content
The purpose of this utility model be solve the prior art there are energy waste seriously and heavy-polluted technical problem, provide
Electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel, carrys out overcome the deficiencies in the prior art.
Electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel of the utility model, it includes electric furnace；The electricity
Stove is interconnected by pipeline and clarifier；The top of the clarifier is interconnected by fresh-air duct and air-introduced machine, and air inducing
Machine is interconnected by coal gas escape pipe and hot-blast stove；
Its main points is that the coal gas escape pipe is equipped with the isocon interconnected with it；The isocon and anti-backfire water
Sealed cans are interconnected, and the bottom end of isocon is corresponding with the bottom of Water seal of preventing flashback tank；The Water seal of preventing flashback tank is equipped with nitrogen
Gas inlet pipe, water inlet pipe and blow-off pipe；The top of the Water seal of preventing flashback tank is interconnected by Guan Yushui filter tanks of collaborating；
The internal perisporium of the water filter tank is uniformly provided with several water mist sprinkling pipes I；The periphery wall at the tube bottom end of collaborating is uniform
Equipped with several water mist sprinkling pipes II；The water mist sprinkling pipe I and water mist sprinkling pipe II are mutually arranged in alternating expression；The water filter tank
Top be equipped with net gas outlet pipe, and net gas outlet pipe is interconnected by net gas jets after-poppet and burner nozzle.
In order to keep level balance, it is interconnected by series-flow pipe between the Water seal of preventing flashback tank and water filter tank.
For the ease of observing liquid level, the side of the water filter tank is equipped with magnetic float liquidlevel meter.
The utility model is reasonable for structure, novel in design, and coal gas is shunted by isocon, then passes through Water seal of preventing flashback tank
Enter burner nozzle with water filter tank, so as to the combustion reaction into rotary kiln；Whole process can make full use of Gas Resource, reduce
Waste, saves considerable cost, and purified flue gas meets discharge standard, environmentally safe.The utility model
Solve prior art energy waste seriously and heavy-polluted technical problem.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model use state diagram；
Fig. 3 is Water seal of preventing flashback tank and water filter tank connection status schematic front view in the utility model；
Fig. 4 is Water seal of preventing flashback tank and water filter tank connection status schematic top plan view in the utility model.
1, isocon 2, Water seal of preventing flashback tank 3, water filter tank 4, net gas jets after-poppet 5, burner spray in figure
Mouth 6, rotary kiln 7, clarifier 8, fresh-air duct 9, electric furnace 10, nitrogen inlet 11, water inlet pipe 12, blow-off pipe
13, series-flow pipe 14, magnetic float liquidlevel meter 15, overflow port 16, water mist sprinkling pipe II 17, water mist sprinkling pipe I 18, string
Tracheae 19, net gas outlet pipe.
Specific implementation mode
Referring to Fig.1 and Fig. 4, the utility model it include electric furnace 9；The electric furnace 9 is interconnected by pipeline and 7 phase of clarifier
It is logical；The top of the clarifier 7 is interconnected by fresh-air duct 8 and air-introduced machine, and air-introduced machine passes through coal gas escape pipe and hot wind
Stove is interconnected；
The coal gas escape pipe is equipped with the isocon 1 interconnected with it；The isocon 1 and Water seal of preventing flashback tank 2
It is interconnected, and the bottom end of isocon 1 is corresponding with the bottom of Water seal of preventing flashback tank 2；The Water seal of preventing flashback tank 2 is equipped with nitrogen
Inlet pipe 10, water inlet pipe 11 and blow-off pipe 12；The top of the Water seal of preventing flashback tank 2 is interconnected by pipe 18 of collaborating with 3 phase of water filter tank
It is logical；
The internal perisporium of the water filter tank 3 is uniformly provided with several water mist sprinkling pipes I 17；The periphery wall of 18 bottom end of pipe of collaborating
It is uniformly provided with several water mist sprinkling pipes II 16；The water mist sprinkling pipe I 17 and water mist sprinkling pipe II 16 are mutually arranged in alternating expression；
The top of the water filter tank 3 is equipped with net gas outlet pipe 19, and net gas outlet pipe 19 passes through net gas jets after-poppet 4 and burner nozzle 5
It is interconnected.
In order to keep level balance, it is interconnected by series-flow pipe 13 between the Water seal of preventing flashback tank 2 and water filter tank 3.
For the ease of observing liquid level, the side of the water filter tank 3 is equipped with magnetic float liquidlevel meter 14.
Operation principle：The flue gas that electric furnace 9 generates first passes around enters anti-backfire after the purification of clarifier 7 by isocon 1
Water sealed tank 2, under liquid level, this step can utilize the principle of water seal to prevent to be tempered for the bottom end of isocon 1；Flue gas rises through
Pipe 18 of collaborating enters water and considers in tank 3, purified after water mist sprinkling pipe I 17 and II 16 alternating expression of water mist sprinkling pipe spray
Gas rises again, is connected to burner nozzle 5 by net gas outlet pipe 19, the finally combustion reaction in rotary kiln.The utility model
Part coal gas is branched into rotary kiln, the energy is can make full use of, avoids waste, the production cost of enterprise substantially reduces, simultaneously
The pollution to environment can also be significantly reduced.
The utility model is averaged producing coal gas by mineral hot furnace：3500Nm3/h, CO content 30-65%, calorific value 1200-
1400kcal/Nm3, Ya Li≤5KPa are calculated：3500Nm3/h1300kcal/Nm3,=4550000kcal/h；It saves per hour
Natural gas：（Calorific value：8000kcal/Nm3）4550000kcal/h÷8000kcal/Nm3=568.75Nm3；That is 568.75Nm3/h
× for 24 hours=13650Nm3/ days saving natural gas is very notable up to 13650Nm3/ days economic benefits.
Claims (3)
1. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel, it includes electric furnace（9）；The electric furnace（9）Pass through
Pipeline and clarifier（7）It is interconnected；The clarifier（7）Top pass through fresh-air duct（8）It is interconnected, and draws with air-introduced machine
Wind turbine is interconnected by coal gas escape pipe and hot-blast stove；
It is characterized in that：The coal gas escape pipe is equipped with the isocon interconnected with it（1）；The isocon（1）With prevent back
Fiery water sealed tank（2）It is interconnected, and isocon（1）Bottom end and Water seal of preventing flashback tank（2）Bottom correspond to；The anti-backfire water
Sealed cans（2）It is equipped with nitrogen inlet（10）, water inlet pipe（11）And blow-off pipe（12）；The Water seal of preventing flashback tank（2）Top it is logical
Cross pipe of collaborating（18）With water filter tank（3）It is interconnected；
The water filter tank（3）Internal perisporium be uniformly provided with several water mist sprinkling pipes I（17）；The pipe of collaborating（18）The periphery of bottom end
Wall is uniformly provided with several water mist sprinkling pipes II（16）；The water mist sprinkling pipe I（17）With water mist sprinkling pipe II（16）Mutually submission
Wrong formula arrangement；The water filter tank（3）Top be equipped with net gas outlet pipe（19）, and net gas outlet pipe（19）Pass through net gas jets after-poppet
（4）With burner nozzle（5）It is interconnected.
2. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 1, it is characterized in that institute
State Water seal of preventing flashback tank（2）With water filter tank（3）Between pass through series-flow pipe（13）It is interconnected.
3. electric furnace coal-gas recovering utilizes device in a kind of RKEF methods smelting ferronickel according to claim 1, it is characterized in that institute
State water filter tank（3）Side be equipped with magnetic float liquidlevel meter（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721549593.2U CN207619496U (en) | 2017-11-20 | 2017-11-20 | Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721549593.2U CN207619496U (en) | 2017-11-20 | 2017-11-20 | Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207619496U true CN207619496U (en) | 2018-07-17 |
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ID=62829415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721549593.2U Active CN207619496U (en) | 2017-11-20 | 2017-11-20 | Electric furnace coal-gas recovering utilizes device in RKEF method smelting ferronickels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207619496U (en) |
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2017
- 2017-11-20 CN CN201721549593.2U patent/CN207619496U/en active Active
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