CN106893794A - Dedusting ash of stainless steel is smelted into the method and device of chromium ferronickel water using rotary furnace - Google Patents
Dedusting ash of stainless steel is smelted into the method and device of chromium ferronickel water using rotary furnace Download PDFInfo
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- CN106893794A CN106893794A CN201510952957.0A CN201510952957A CN106893794A CN 106893794 A CN106893794 A CN 106893794A CN 201510952957 A CN201510952957 A CN 201510952957A CN 106893794 A CN106893794 A CN 106893794A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
- C21B13/085—Making spongy iron or liquid steel, by direct processes in rotary furnaces wherein iron or steel is obtained in a molten state
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- 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
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
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- 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
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/243—Binding; Briquetting ; Granulating with binders inorganic
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Abstract
The present invention relates to metallurgical technology field, there is provided a kind of use rotary furnace is smelted into the method and device of chromium ferronickel water by dedusting ash of stainless steel, the method includes：Dedusting ash of stainless steel compound is mixed and made into using dedusting ash of stainless steel and binding agent；Dedusting ash of stainless steel compound is pressed into oblate sphere block using ball press；Using rotary furnace, by oblate sphere block, the smelting reduction under all-oxygen combustion state, into chromium ferronickel water, also includes reducing agent and flux in the rotary furnace.The present invention uses the method that rotary furnace is smelted into chromium ferronickel water by dedusting ash of stainless steel as smelting device, and process is simple, chromium, nickel recovery are high, can realize that chromium ferronickel hydro-thermal is sent for electric furnace/AOD, cleaning discharge, greatlys save production cost.
Description
Technical field
It is more particularly to a kind of to use rotary furnace by dedusting ash of stainless steel smelting the present invention relates to metallurgical technology field
It is smelt the method and device of chromium ferronickel water.
Background technology
Contain NiO, Cr in the dedusting ash produced in producing stainless steel process2O3, the metal oxide such as FeO,
If directly discharged without harmless treatment, not only environment is polluted, and it is contained therein expensive
Metal cannot also be recycled, and cause the wasting of resources.
For the dedusting ash produced in producing stainless steel process, domestic existing recovery process is main
Have：
1) add binding agent mixing, pressure ball to return to electric furnace smelting in dedusting ash, reclaim therein valuable
Metal, the method is limited by the temperature and quality of liquid steel, and organic efficiency is low, it is impossible to largely process dedusting
Ash；
2) dedusting ash enters back into blast furnace process as Sintering Blend, and the method can only have blast furnace
Stainless steel enterprises are used, but because dedusting ash iron-holder is low, it is high containing objectionable impurities, cause sintering deposit poor
Change is unfavorable for blast furnace process, and processing cost is high；
3) Metal In Shaft Furnace is entered after adding binding agent mixing, pressure ball in dedusting ash, the method uses coal
, used as origin of heat, exhaust gas volumn and pollutant are more in emission for gas and hot blast, follow-up environmental protection facility investment
It is larger, be not suitable for discontinuity treatment dedusting ash of stainless steel.
The content of the invention
Dedusting ash of stainless steel is smelted into chromium ferronickel using rotary furnace it is an object of the invention to provide one kind
The method and device of water, it has the characteristics of economic and environment-friendly, rate of recovery is high, production technology is flexible.
In order to solve the above technical problems, embodiments of the present invention will be stainless using rotary furnace there is provided one kind
The method that steel dedusting ash smelts into chromium ferronickel water, the method includes：Using dedusting ash of stainless steel and binding agent
It is mixed and made into dedusting ash of stainless steel compound；Dedusting ash of stainless steel compound is pressed into using ball press oblate
Spheroid block；Using rotary furnace by oblate sphere block the smelting reduction Cheng Ge under all-oxygen combustion state
Ferronickel water, also includes reducing agent and flux in the rotary furnace.
Compared with the existing technology, the present invention uses rotary furnace by dedusting ash of stainless steel to embodiments of the present invention
The method for smelting into chromium ferronickel water, process is simple, chromium, nickel recovery are high, can be realized for electric furnace/AOD
Chromium ferronickel hydro-thermal is sent, cleaning discharge, greatlys save production cost.
Preferably, dedusting ash of stainless steel compound matches any the one of mode from following three kinds of different qualities
Kind, dedusting ash of stainless steel is well mixed with various raw materials, it is made dedusting ash of stainless steel compound：A) not
The component and percentage by weight of rust steel dedusting ash compound constitute and are:Dedusting ash of stainless steel 74~82%, coke powder
5~10%, water 13~16%；B) component of dedusting ash of stainless steel compound and percentage by weight composition are:
Dedusting ash of stainless steel 71~80%, coke powder 4~8%, pulverized limestone 3~5%, water 13~16%；C) stainless steel
The component and percentage by weight of dedusting ash compound are constituted:Dedusting ash of stainless steel 72~80%, coke powder 5~
10%th, waterglass 15~18%.Dedusting ash of stainless steel is nickeliferous or without nickel and stainless steel dedusting ash, it is desirable to
Particle size of dust is 1mm to the maximum, and more than 70% is powdered.After having matched somebody with somebody material by above-mentioned mass fraction, in batch mixing
It is sufficiently stirred for mixing in device.Wherein, the leading indicator of coke powder is：Ash content≤16%, volatile matter≤2.5%,
Sulphur content≤0.8%, moisture≤15%, particle size range content >=90%.Dedusting ash of stainless steel compound mixes burnt
Powder is not only facilitated and for dedusting ash of stainless steel to be processed into oblate sphere block, and goes back original work to follow-up
Industry plays the effect of being effectively promoted, and waterglass has stronger bond effect.
Preferably, oblate sphere block must be dried before rotary furnace is added, and intensity requirement >=800N/
Ball block, oblate sphere block can then avoid oblate sphere block from entering in rotary furnace by baking operation
Reacted with coke, reduce the reduction efficiency of rotary furnace, the oblate sphere block of higher-strength is easy to
Charging operation.
Preferably, reducing agent, flux are respectively coke, fluorite, furthermore, preferably, burnt
Charcoal, fluorite and add rotary furnace oblate sphere block between percentage by weight be：Oblate sphere block
Shape thing 65~80%, coke 18~30%, fluorite 2~5%.Rotary furnace adds the oblate sphere of said ratio
Body block, coke, fluorite carry out melting in rotary furnace, can efficiently by dedusting ash of stainless steel
Chromium, nickel, the oxide of manganese are reduced into elemental metals, and liquid metal bath is finally formed in rotary furnace.
The present invention also provides a kind of device for preceding method, and the device includes rotary furnace, rotary furnace bag
Include：The body of heater of furnace body support is installed on, its burner end for being used to spray into fuel is provided with oxygen burner,
Fume extractor is installed as the stove tail of feed end, the sidewall of the furnace body near stove tail is provided with tapping hole, stove
The side wall of body is provided with refractory material；It is installed on body of heater and the transmission for driving body of heater to rotate and tugboat branch
Bearing apparatus；The foundation structure of body of heater is provided with hydraulic tilt system.
Relative to prior art, device of the invention has occupation area of equipment small, can be fired using oxygen
Burner realizes all-oxygen combustion, and discharge is more cleaned, also, charging operation is more convenient.
Preferably, oxygen burner has oxygen transfer passage and is built in inside oxygen transfer passage
Natural gas transportation passage, be provided with outside oxygen transfer passage carries out cooling operations to whole oxygen burner
Cooling structure layer.Natural gas is exported from the middle part of oxygen burner, and oxygen is then logical from weather heated conveying
The output synchronism output in road, for the abundant burning of natural gas provides enough oxygen guarantees, also,
Cooling structure layer is set in whole oxygen burner, the temperature of whole oxygen burner can be effectively reduced,
Avoiding high temperature influences the stability and reliability of oxygen burner work.
Preferably, the fume extractor that stove tail is set is provided with movable mechanism, in order to remove fume extractor
And fed at the fire door of stove tail.Fume extractor can timely be safeguarded when needing and updated to the structure,
Also, rotary furnace need not increase different fire doors to meet the function of smoke evacuation and charging.Rotary furnace passes through
The optimization of structure causes that whole rotary furnace operation is more convenient, and floor space is small, and the structure of rotary furnace is more
Plus it is optimization, succinct.
Brief description of the drawings
Fig. 1 is the method flow diagram that dedusting ash of stainless steel is smelted into chromium ferronickel water using rotary furnace.
Fig. 2 is to return in the method equipment therefor for smelt into dedusting ash of stainless steel using rotary furnace chromium ferronickel water
Converter front view；
Fig. 3 is the side view of Fig. 2；
Fig. 4 is oxygen in the method equipment therefor for smelt into dedusting ash of stainless steel using rotary furnace chromium ferronickel water
Air burner structural representation.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this hair
Bright each implementation method is explained in detail.However, it will be understood by those skilled in the art that
In each implementation method of the invention, in order that reader more fully understands the application and to propose many technologies thin
Section.But, even if many variations and modification without these ins and outs and based on following implementation method,
The application each claim technical scheme required for protection can also be realized.
Before describing an embodiment, first introduce and dedusting ash of stainless steel is smelted into chromium ferronickel water using rotary furnace
Method equipment therefor (hereinafter referred to as " device "), wherein, Fig. 2 be the device front view, figure
3 is the side view of Fig. 2, and Fig. 4 is oxygen burner structural representation in the device.
Referring to Fig. 2-3, the device includes rotary furnace, and the rotary furnace includes：It is installed on furnace body support 3
Body of heater 1, the body of heater has an isometrical shaft, and two ends of the body of heater are undergauge structure, for example,
The external diameter for starting from the left part of shaft is tapered into, and right part and the left part of the body of heater use identical
Undergauge structure, this structure avoids liquid material in rotary furnace from overflowing, and the left part of the body of heater is used as burner
End, right part is stove tail, and the burner end that body of heater is used to spray into fuel is provided with oxygen burner, the oxygen
Burner is installed on burner end by rotatable means, in case of need, oxygen burner is rotated
Burner hold-down support 8 is shown to oxygen burner installing port set by body of heater, in Fig. 2, as plus
Expect that the stove tail at end is provided with fume extractor 7, the fire door that stove tail is used to install fume extractor is not only only used for
Smoke evacuation, while can be used to carry out charging operation, fume extractor is provided with movable mechanism can then meet this
One demand, movable mechanism includes but are not limited to the situation of locomotive shown in Fig. 2, makees when charging is needed
Industry then removes fume extractor by locomotive, now, then can carry out charging operation in the fire door of stove tail, plus
Complete material then resets fume extractor, and the sidewall of the furnace body near stove tail is provided with tapping hole 9, for example, will go out
Iron mouthful is arranged on the side wall of the right part of body of heater, and the tapping hole is provided with tubulose and taps a blast furnace guiding structural,
Avoid high-temperature liquid state from exporting material to flow on sidewall of the furnace body, the side wall of body of heater is provided with refractory material 10.
In the apparatus, it is installed on a body of heater left side for the transmission for driving body of heater to rotate and tugboat supporting arrangement 2
Lower section, body of heater provides power by the motor in transmission and tugboat supporting arrangement, for driving body of heater to rotate
Structure include but are not limited to said circumstances, reference may also be made to the rotary drive structure of existing rotary furnace.
In the apparatus, the foundation structure of body of heater is provided with hydraulic tilt system, used as a kind of implementation：
The hydraulic tilt system includes：Oil cylinder and hydraulic means 4, the oil cylinder and hydraulic means are arranged at oil cylinder and consolidate
Determine device 5, the foundation structure of the body of heater is provided with body of heater supporting arrangement 6, the top of the body of heater supporting arrangement
Body of heater is rotatably connected at, when oil cylinder and hydraulic means start, then body of heater is rotated around body of heater supporting arrangement
And realize inclining, and then batch turning operation is realized, certainly, the hydraulic tilt system can be also realized towards burner
Direction inclines, and the jacking end of oil cylinder and hydraulic means is distributed in the both sides of body of heater supporting arrangement, it is necessary to direction
Burner is inclined, then the shaft on the right side of oil cylinder and hydraulic means jacking body of heater supporting arrangement, similarly, it is necessary to court
Inclined to stove tail, then the shaft on the left of oil cylinder and hydraulic means jacking body of heater supporting arrangement.
Referring to Fig. 4, the oxygen burner structure in the device is as follows：The oxygen burner has oxygen defeated
The natural gas transportation passage for sending passage and being built in inside oxygen transfer passage, the section of oxygen burner
It is circular natural by taking the circular oxygen burner in section as an example including circular, square or other shapes
Gas transfer passage is centrally arranged, and oxygen transfer passage is laid around the natural gas transportation passage, and oxygen is defeated
Send passage state coaxial with natural gas transportation passage, the entrance 11 of natural gas transportation passage is located at the right side in figure
Side, natural gas transportation channel outlet 15 is located at the left end of oxygen burner, the entrance of oxygen transfer passage
12 are arranged on the wall of oxygen burner side and near the right-hand member of oxygen burner, oxygen transfer passage
14,16 left ends located at oxygen burner of outlet, separate type oxygen, natural gas input port ensure that
The security of work, and the structure can to greatest extent give fuel distributing enough oxygen, oxygen is defeated
Send and the cooling structure that cooling operations are carried out to whole oxygen burner layer, the cooling knot are provided with outside passage
The cooling medium of structure layer is water, and cooling water flows along the conduit wall of oxygen transfer passage, for example, cooling
Water is input into from the bottom of oxygen burner, is exported from the top of oxygen burner, i.e., cooling water inlet 13,
Bottom, the top of the distributing oxygen burner of coolant outlet 17, the bottom of oxygen burner is provided with bottom
Double-deck cooling medium flows layer, and top is also equipped with upper part of double cooling medium flowing layer, top, bottom
The left part of double-deck cooling medium flowing layer is into UNICOM's shape, and layer is flowed on top, bottom bilayer cooling medium
Between UNICOM is then realized by the respective fluidized bed near oxygen transfer passage, this UNICOM position is substantially upper
In the right side of whole oxygen burner.
First embodiment of the invention is related to one kind that dedusting ash of stainless steel is smelted into chromium using rotary furnace
The method of ferronickel water, Fig. 1 shows the flow chart of the method, and the method idiographic flow is as follows：
(1) dedusting ash of stainless steel compound is prepared：The dedusting ash of stainless steel compound includes following component：
Dedusting ash of stainless steel, coke powder, water, wherein, coke powder can be substituted with coal dust, and dedusting ash of stainless steel is
Nickeliferous dedusting ash of stainless steel, the nickeliferous dedusting ash of stainless steel requirement particle size of dust is 1mm, more than 70% to the maximum
For powdered, the leading indicator of coke powder is：Ash content≤16%, volatile matter≤2.5%, sulphur content≤0.8%, water
Point≤15%, particle size range content >=90%, wherein, the weight of each component in dedusting ash of stainless steel compound
Percentage is：Dedusting ash of stainless steel 74~82%, coke powder 5~10%, water 13~16%, for example：It is stainless
Steel dedusting ash 75%, coke powder 10%, water 15% will be abundant in mixing device after the completion of above-mentioned raw materials dispensing
Stir and evenly mix, that is, be made dedusting ash of stainless steel compound.
(2) pressure ball drying：Dedusting ash of stainless steel compound is delivered to ball press, appearance and size is pressed into
Oblate sphere block less than 30mm, then by oblate sphere block dry, reach intensity requirement >=
800N/ ball blocks.
(3) smelt chromium ferronickel water：By the 1000kg oblate sphere blocks after drying according to oblate sphere
Body block 70-80%, coke 18-25%, the ratio of fluorite 2-5% are smelted in being added to rotary furnace, example
Such as, oblate sphere block 1000kg, coke 225kg, fluorite 25kg, the rotary furnace is in all-oxygen combustion
Melting under state, pure oxygen combustion technology uses 100% oxygen and natural gas, and certainly, fuel can also be oil
Deng other fuel mediums, the theoretical temperature combustion of oxygen burner flame can reach more than 2000 DEG C, lead to
Heat transfer to furnace charge after radiant heat and the refractory material heat absorption of flame is crossed, the noble metal in furnace charge is reduced
Out, chromium ferronickel water is formed, smelting time is 40-60 minutes, gas discharge 150-250Nm3/h,
Tapping temperature is more than 1400 DEG C.When whole oblate sphere block smelting reductions terminate, slag in rotary furnace
Separated with metallic solution, metallic solution pours into heat in ladle and is sent to electric furnace/A by rotary furnace tapping hole
OD stoves, or cast chromium ferronickel block and used as the raw material of stainless steel smelting, the slag in rotary furnace is final
Poured into cinder ladle by fire door.
Wherein, drawn according to experimental data：
The chromium ferronickel water quality percentage that 200 series stainless steel dedusting ash smelt out is：C：3~5%,
Si：0.5~1.0%, Mn：0.5~1.5%, Cr：10~20%, Ni：0.5~2%, remaining is Fe.
The chromium ferronickel water quality percentage that 300 series stainless steel dedusting ash smelt out is：C：3~5%,
Si：0.5~1.0%, Mn：0.5~1.5%, Cr：10~20%, Ni：3~7%, remaining is Fe.
Therefore, the implementation of the method has economic worth higher.
Using smelting process low production cost, the efficiency high, molten iron chromium, nickel content are high, at most may be used daily
200 tons of dedusting ash of stainless steel for the treatment of.
Second embodiment of the present invention is related to one kind that dedusting ash of stainless steel is smelted into chromium using rotary furnace
The method of ferronickel water, referring to Fig. 1, the method is concretely comprised the following steps：
(1) dedusting ash of stainless steel compound is prepared：The component and weight hundred of dedusting ash of stainless steel compound
Divide and be than composition：Dedusting ash of stainless steel 71~80%, coke powder 4~8%, pulverized limestone 3~5%, water 13~16%,
For example：The component and percentage by weight of dedusting ash of stainless steel compound are constituted：Dedusting ash of stainless steel 75%,
Coke powder 8%, pulverized limestone 4%, water 13%, dedusting ash of stainless steel are nickeliferous dedusting ash of stainless steel, and this is nickeliferous not
Rust steel dedusting ash requirement particle size of dust is 1mm to the maximum, and more than 70% is powdered, and the leading indicator of coke powder is：
Ash content≤16%, volatile matter≤2.5%, sulphur content≤0.8%, moisture≤15%, particle size range content >=90%,
To be sufficiently stirred for mixing in mixing device after the completion of above-mentioned raw materials dispensing, that is, be made dedusting ash of stainless steel and mix
Close material.
(2) pressure ball drying：Dedusting ash of stainless steel compound is delivered to ball press, appearance and size is pressed into
Oblate sphere block less than 30mm, for example, be pressed into the block pelletizing that appearance and size is 20mm, then
By the drying of oblate sphere block, intensity 1000N/ ball blocks are reached.
(3) smelt chromium ferronickel water：1000kg oblate spheres block after drying, 280kg is burnt
Charcoal, 53kg fluorites are smelted in being added to rotary furnace, rotary furnace melting under all-oxygen combustion state, oxygen
The theoretical temperature combustion of burner flame can reach more than 2000 DEG C, hot and resistance to by flame radiation
Heat transfer after fiery material heat absorption to furnace charge, the noble metal in furnace charge is reduced out, forms chromium ferronickel water,
Smelting time is 50 minutes, and gas discharge 220Nm3/h, tapping temperature is more than 1400 DEG C.Work as whole
Oblate sphere block smelting reduction terminates, and slag and metallic solution are separated in rotary furnace, and metallic solution leads to
Cross rotary furnace tapping hole and pour into heat in ladle and be sent to electric furnace/AOD furnace, or cast chromium ferronickel block conduct
The raw material of stainless steel smelting is used, and the slag in rotary furnace is poured into cinder ladle eventually through fire door.
Third embodiment of the present invention is related to one kind that dedusting ash of stainless steel is smelted into chromium using rotary furnace
The method of ferronickel water, referring to Fig. 1, the method is concretely comprised the following steps the method flow chart：
(1) dedusting ash of stainless steel compound is prepared：The component and weight hundred of dedusting ash of stainless steel compound
Divide and be than composition：Dedusting ash of stainless steel dedusting ash of stainless steel 72~80%, coke powder 5~10%, waterglass
15~18%, for example, the component of dedusting ash of stainless steel compound and percentage by weight composition are:Stainless steel is removed
Dirt ash dedusting ash of stainless steel 75%, coke powder 8%, waterglass 17%.Dedusting ash of stainless steel is containing nickel and stainless steel
Dedusting ash, nickeliferous dedusting ash of stainless steel requirement particle size of dust is 1mm to the maximum, more than 70% be it is powdered,
The leading indicator of coke powder is：Ash content≤16%, volatile matter≤2.5%, sulphur content≤0.8%, moisture≤15%,
Particle size range content >=90%, will be sufficiently stirred for mixing, i.e., after the completion of above-mentioned raw materials dispensing in mixing device
It is made dedusting ash of stainless steel compound.
(2) pressure ball drying：Dedusting ash of stainless steel compound is delivered to ball press, appearance and size is pressed into
Oblate sphere block less than 30mm, for example, it is block to be pressed into the oblate sphere that appearance and size is 25mm
Thing, then dries oblate sphere block, reaches intensity for 900N/ ball blocks.
(3) smelt chromium ferronickel water：1000kg oblate spheres block after drying, 335kg is burnt
Charcoal, 70kg fluorites are smelted in being added to rotary furnace, rotary furnace melting under all-oxygen combustion state, oxygen
The theoretical temperature combustion of burner flame can reach more than 2000 DEG C, hot and resistance to by flame radiation
Heat transfer after fiery material heat absorption to furnace charge, the noble metal in furnace charge is reduced out, forms chromium ferronickel water,
Smelting time is 50 minutes, and gas discharge 220Nm3/h, tapping temperature is more than 1400 DEG C.Work as whole
Oblate sphere block smelting reduction terminates, and slag and metallic solution are separated in rotary furnace, and metallic solution leads to
Cross rotary furnace tapping hole and pour into heat in ladle and be sent to electric furnace/AOD furnace, or cast chromium ferronickel block conduct
The raw material of stainless steel smelting is used, and the slag in rotary furnace is poured into cinder ladle eventually through fire door.
It will be understood by those skilled in the art that the respective embodiments described above be realize it is of the invention specific
Embodiment, and in actual applications, can to it, various changes can be made in the form and details, without inclined
From the spirit and scope of the present invention.
Claims (11)
1. a kind of method that use rotary furnace is smelted into chromium ferronickel water by dedusting ash of stainless steel, its feature exists
In the method includes：
Dedusting ash of stainless steel compound is mixed and made into using dedusting ash of stainless steel and binding agent；
Dedusting ash of stainless steel compound is pressed into oblate sphere block using ball press；
Using rotary furnace by oblate sphere block under all-oxygen combustion state smelting reduction into chromium ferronickel water,
Also include reducing agent and flux in the rotary furnace.
2. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the method also comprises the following steps：
Chromium ferronickel hydro-thermal after smelting is sent to electric furnace/AOD furnace, or casts chromium ferronickel block.
3. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the dedusting ash of stainless steel compound component and percentage by weight composition be：
Dedusting ash of stainless steel 74~82%, coke powder 5~10%, water 13~16%.
4. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the dedusting ash of stainless steel compound component and percentage by weight composition be：
Dedusting ash of stainless steel 71~80%, coke powder 4~8%, pulverized limestone 3~5%, water 13~16%.
5. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the dedusting ash of stainless steel compound component and percentage by weight composition be：
Dedusting ash of stainless steel 72~80%, coke powder 5~10%, waterglass 15~18%.
6. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the oblate sphere block before rotary furnace is added must drying, and by force
Degree requirement >=800N/ ball blocks.
7. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 1
Method, it is characterised in that the reducing agent, flux are respectively coke, fluorite.
8. dedusting ash of stainless steel is smelted into chromium ferronickel water by use rotary furnace according to claim 7
Method, it is characterised in that the coke, fluorite and add rotary furnace oblate sphere block between
Percentage by weight be：Oblate sphere block 65~80%, coke 18~30%, fluorite 2~5%.
9. a kind of device for such as any methods describeds of claim 1-7, it is characterised in that the dress
Put including rotary furnace, the rotary furnace includes：
The body of heater of furnace body support is installed on, its burner end for being used to spray into fuel is provided with oxygen burner,
Fume extractor is installed as the stove tail of feed end, the sidewall of the furnace body near stove tail is provided with tapping hole, institute
The side wall for stating body of heater is provided with refractory material；
It is installed on body of heater and the transmission for driving body of heater to rotate and tugboat supporting arrangement；
The foundation structure of the body of heater is provided with hydraulic tilt system.
10. device according to claim 9, it is characterised in that the oxygen burner has oxygen
Gas transfer passage and the natural gas transportation passage being built in inside oxygen transfer passage, the oxygen conveying
Being provided with outside passage carries out the cooling structure layer of cooling operations to whole oxygen burner.
11. devices according to claim 9, it is characterised in that the fume extractor that stove tail is set sets
Movable mechanism is equipped with, is fed at the fire door of stove tail in order to remove fume extractor.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220610A (en) * | 2017-12-20 | 2018-06-29 | 江阴硕人节能环保科技有限公司 | A kind of processing method of the dedusting ash containing heavy metal |
| CN109371251A (en) * | 2018-10-19 | 2019-02-22 | 北京硕人节能环保技术有限公司 | A kind of processing method containing chromium, nickel dedusting ash |
| CN110616323A (en) * | 2019-07-31 | 2019-12-27 | 华北理工大学 | Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415767A (en) * | 2002-11-28 | 2003-05-07 | 青岛森田金属有限公司 | Method for recycling valuable metal from stainless steel dust |
| CN101063524A (en) * | 2006-04-26 | 2007-10-31 | 气体产品与化学公司 | Ultra-low nox burner assembly |
| CN101131304A (en) * | 2007-09-26 | 2008-02-27 | 中国铝业股份有限公司 | Tiltable rotary secondary aluminum smelting furnace |
| CN101654738A (en) * | 2009-09-15 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Method for smelting chromated-nickel-containing molten iron by stainless steel dedusting ash and iron scale companion material |
| CN101705333A (en) * | 2009-11-28 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Reduction and utilization method of dedusting ash of stainless steel |
| CN103052725A (en) * | 2010-08-04 | 2013-04-17 | 乔治洛德方法研究和开发液化空气有限公司 | Process for melting scrap metal |
| CN103453525A (en) * | 2013-09-16 | 2013-12-18 | 广西有色再生金属有限公司 | Oxygen-enriched combustor |
| CN104711432A (en) * | 2013-12-17 | 2015-06-17 | 安阳市鼎和镍业科技有限公司 | Stainless steel dedusting recycling method |
| CN105219954A (en) * | 2014-06-30 | 2016-01-06 | 宝钢不锈钢有限公司 | A kind of recoverying and utilizing method of dedusting ash of stainless steel |
| CN205640909U (en) * | 2016-05-23 | 2016-10-12 | 苏州宝联重工股份有限公司 | RH is converter nozzle and RH refining furnace for coal gas for refining furnace |
-
2015
- 2015-12-17 CN CN201510952957.0A patent/CN106893794B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415767A (en) * | 2002-11-28 | 2003-05-07 | 青岛森田金属有限公司 | Method for recycling valuable metal from stainless steel dust |
| CN101063524A (en) * | 2006-04-26 | 2007-10-31 | 气体产品与化学公司 | Ultra-low nox burner assembly |
| CN101131304A (en) * | 2007-09-26 | 2008-02-27 | 中国铝业股份有限公司 | Tiltable rotary secondary aluminum smelting furnace |
| CN101654738A (en) * | 2009-09-15 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Method for smelting chromated-nickel-containing molten iron by stainless steel dedusting ash and iron scale companion material |
| CN101705333A (en) * | 2009-11-28 | 2010-05-12 | 山西太钢不锈钢股份有限公司 | Reduction and utilization method of dedusting ash of stainless steel |
| CN103052725A (en) * | 2010-08-04 | 2013-04-17 | 乔治洛德方法研究和开发液化空气有限公司 | Process for melting scrap metal |
| CN103453525A (en) * | 2013-09-16 | 2013-12-18 | 广西有色再生金属有限公司 | Oxygen-enriched combustor |
| CN104711432A (en) * | 2013-12-17 | 2015-06-17 | 安阳市鼎和镍业科技有限公司 | Stainless steel dedusting recycling method |
| CN105219954A (en) * | 2014-06-30 | 2016-01-06 | 宝钢不锈钢有限公司 | A kind of recoverying and utilizing method of dedusting ash of stainless steel |
| CN205640909U (en) * | 2016-05-23 | 2016-10-12 | 苏州宝联重工股份有限公司 | RH is converter nozzle and RH refining furnace for coal gas for refining furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108220610A (en) * | 2017-12-20 | 2018-06-29 | 江阴硕人节能环保科技有限公司 | A kind of processing method of the dedusting ash containing heavy metal |
| CN108220610B (en) * | 2017-12-20 | 2019-11-29 | 江阴硕人节能环保科技有限公司 | A kind of processing method of the dedusting ash containing heavy metal |
| CN109371251A (en) * | 2018-10-19 | 2019-02-22 | 北京硕人节能环保技术有限公司 | A kind of processing method containing chromium, nickel dedusting ash |
| CN109371251B (en) * | 2018-10-19 | 2021-04-30 | 北京硕人节能环保技术有限公司 | Treatment method of dust containing chromium and nickel |
| CN110616323A (en) * | 2019-07-31 | 2019-12-27 | 华北理工大学 | Method for producing alloy blocks and mineral wool from blast furnace cloth bag dust removal ash and fly ash |
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| CN106893794B (en) | 2019-07-02 |
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