CN106636519A - Whole-body two-sided flame separating type heating rotary kiln and method for producing direct reduction iron co-production carbon base fertilizer - Google Patents
Whole-body two-sided flame separating type heating rotary kiln and method for producing direct reduction iron co-production carbon base fertilizer Download PDFInfo
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- CN106636519A CN106636519A CN201610890815.0A CN201610890815A CN106636519A CN 106636519 A CN106636519 A CN 106636519A CN 201610890815 A CN201610890815 A CN 201610890815A CN 106636519 A CN106636519 A CN 106636519A
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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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
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- Inorganic Chemistry (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to a whole-body two-sided flame separating type heating rotary kiln and a method for producing direct reduction iron co-production carbon base fertilizer. According to the invention, a rotary kiln cylinder is composed of two cylinders namely an outer cylinder and an inner cylinder; an in-depth reduction chamber is formed between the outer cylinder and the inner cylinder and is divided into 6 to 12 in-depth reduction chambers by support partition boards; each separated in-depth reduction chamber is filled with equivalent reduced material, the filling rate is increased by 6 to 12 times, and the productivity of direct reduction iron of the rotary kiln is also increased by 6 to 12 times, so that the production capacity of the kiln is greatly improved, the kiln size is relatively reduced, and the investment on the kiln is also greatly reduced relatively. Except carbon, biomass materials including straws and the like can be used as a reduction agent, so that pollution to the environment caused by combustion of the biomass materials is avoided, waste materials are recycled, high-concentration coal gas and by-products of co-production biochar base fertilizer are recycled, energy conservation, emission reduction and carbon drop are realized, and NOx is not generated.
Description
Technical field
The invention belongs to metallurgical equipment and agricultural technology field, more particularly to the two-sided flame-insulating type heating rotary kiln of entire body and straight
Connect the carbon-based fertile method of reduced iron coproduction.
Background technology
Agricultural crop straw is a kind of excellent biomass energy, and has very big yield every year, in recent years, the annual summer harvest
When the autumn and winter, always there are the stalks such as substantial amounts of wheat, corn to burn in field, generate a large amount of heavy smogs, not only become
The bottleneck problem of rural environmental protection, or even become the arch-criminal for bringing disaster to urban environment, agricultural crop straw becomes rural area and faces
The new source of pollution.China can generate every year more than 700,000,000 tons of stalk as large agricultural country, become " use is little " but must process
" discarded object " for falling.If voluntarily processed by peasant completely, just necessarily there are a large amount of phenomenons burned.Agricultural crop straw, wood chip,
The biomass material comprehensive exploitations such as sawdust, peanut shell, corncob, straw, wheat straw wheat bran, tree branches and leaves, Radix Glycyrrhizae, palm, coffee shell
Using just having great significance.
Gas cutting slag is mainly derived from steel construction and iron and steel using in gas cutting cutting process, the ignition temperature of cutter and ejection
High-speed cutting oxygen stream, make incision metal vigorous combustion and by after burning metal oxide blow down realize workpiece separate,
It is iron combustion process in pure oxygen rather than fusion process produces clinker, it mainly includes：Gas welding slag, iron oxide, oxidation
Skin.
When steel forging, hot rolling hot-working and hand-drawn wire, due to the reaction of oxygen in iron and steel and air, a large amount of oxygen can be often formed
Change iron sheet, belong to Ferrous Metallurgy solid waste, the main component of iron scale is Fe2O3、Fe3O4、FeO.The annual oxygen in the whole nation
Change about 10,000,000 tons or so of iron sheet, if processed not in time, cause to pile up, waste of resource.If it can rationally be utilized, plus
Work can both reduce production cost into water purification agent, and environmental protection and energy saving effect can be played again.
China is a big steel country, and nowadays iron and steel output has broken through 1,300,000,000 tons of high pointes, and production capacity is seriously superfluous.Though China
So iron ore deposit is widely distributed, but low lean thin refractory iron ore resource distribution accounts for more than 97%, is not opened well so far
Send out and utilize, cause resources idle and waste.On the contrary, steel mill also needs to every year the substantial amounts of high grade iron ore of import, import according to
Bad degree accounts for more than the 55% of steel mill's iron ore total flow, and also has substantial amounts of iron scale every year, is only used as common
Iron Ore Powder is sintered and uses, and does not play its exclusive speciality advantage, wastes resource.
Steel Industrial, was in the past to greatly develop the long flow process steel-making mode based on the steel-making of blast furnace ironmaking water, accounted for generation
The 55.8% of boundary's straight carbon steel aggregated capacity, causes production capacity surplus, while environmental pollution is also result in, while the production capacity of excellent special steel is only accounted for
The 1.9% of world's aggregated capacity；Nowadays, country is advocated energetically with the non-burnt melting and reducing iron smelted iron based on (DRI) and short
The development of flow process steel-making.And the current DRI technology of China is relatively delayed, reduced iron annual production is less than 600,000
Ton, accounts for world's reduced iron total output less than 1%.In order to reduce straight carbon steel production capacity, excellent special steel ratio is improved, must just improve steel scrap
With the electric furnace steel making ratio based on DRI, at present, steel scrap (iron product containing reduction) has every year more than 28,000,000 tons scarce
Mouthful, therefore, about 10,000,000 tons of DRI, HBI product for wanting import external every year.As China's coking coal reserves are increasingly poor and ring
In the case that guarantor's problem is increasingly serious, country has put into effect more related industry policy, encourages exploitation, using mill coal resource,
The technological development such as the non-burnt iron-smelting process such as DRI and melting and reducing iron and mini-mill steelmaking and application are carried out, is greatly developed
The product of the excellent special steel of electric furnace, so, the yield and quality of reduced iron are improved, reducing energy consumption reduces CO2Discharge, especially to the greatest extent
It is fast to develop the substantial amounts of low lean thin refractory iron ore of China and iron-containing waste so as to which that resource is an extremely urgent cause.
China of today, electric steel ratio is less than 15%, and the long flow process of blast furnace-converter makes steel the fume emission of mode
Amount is more than the 80% of whole steel industry, the exhaust emissions of steel scrap (DRI DRI)+electric furnace mini-mill steelmaking mode
Amount, only accounts for the 30% of the long flow process steel-making mode of blast furnace-converter.China is again an Imported gas state, is developed and Introduced From Abroad
Ripe gas-based reduction iron technology and equipment, because natural gas resource is deficient, does not satisfy the requirements；If Development of Coal turns gas, exist
Coal turn gas equipment investment it is big the problems such as, coal turns gas itself will also consume more than 15～20% energy, and technique simultaneously
Technical sophistication, does not meet China's national situation, therefore, to solve the environmental issue of Steel Industrial energy-saving and emission-reduction carbon drop and develop short
Flow process makes steel cause, just must actively develop suitable coal based ferrum redactum technology and equipment, and wall scroll production line has
The size of capacity is big, output investment ratio is low, production run low cost, workable, energy-saving and emission-reduction etc. are advanced, it is stable the characteristics of, very
Meet the national conditions of China's reduced iron industry.
At present, the technology and device of China's coal based ferrum redactum industrialization comparative maturity mainly has：Coal base tunnel cave tank
Formula method, coal base tunnel cave tank-less method and caol based DR process, and the technique such as coal base rotary hearth furnace, coal base shaft furnace and plant investment compared with
Greatly, technology and device are still immature, need to continue perfect, are not enough to large-scale promotion.
Traditional coal base tunnel cave pot type method, can only adopt the high-grade iron ore of TFe >=66% or easily select iron ore, it is impossible to profit
High-grade reduction iron product, and technology are isolated with the direct-reduction of low thin refractory iron ore, grandidierite and iron-containing waste
Fall behind, cause that production capacity is low, the recovery time is long, floor space is wide, high energy consumption, product quality are low, product marketing is not smooth, belongs to naughty
Eliminate technique and device.
Coal base tunnel cave tank-less method, although the separation smelting of various iron ore reductions can be selected high-grade high-quality reduced iron and be produced
Product, but wall scroll production line year disposal ability highest is also less than 100,000 tons of raw ores, it is still necessary to it is further perfect.
Gradually ripe, operating cost is relatively low for caol based DR process technology, gradually promotes, but has to reduction coal
Strict requirements, it is necessary to make reducing agent using the particulate coal of high-quality bituminous coal, and the rotary kiln reduction temperature difference is very big, and operation requires severe
Carve, output investment ratio is relatively also larger, wall scroll production line year maximum production capacity also less than 300,000 tons of raw ores.
At present, country is actively promoting the environmental protection projects such as each field environmental protection project, sewage disposal, displacement also increasingly
It is many, need substantial amounts of metal iron powder to carry out sewage deoxidation treatment, spent acid replacement Treatment, counterweight, pressed part and food preservative
Deng application.
It is one of main method of current sewage and water treatment that sewage disposal is carried out with reduced iron powder, at home and abroad
Jing has history for many years.But, because reduced iron powder complex chemical composition itself, institutional framework are fine and closely woven, cause reaction speed it is slow,
Reaction column easily blocks, poor to high concentration wastewater treatment effect, and reduced iron powder consumption is big, and investment, operating cost are of a relatively high.
Water purification agent (DRI (hereinafter referred to as DRI)) is far longer than iron filings, DRI specific surfaces per ton because of its specific surface area
Product is 5～100,000 times of iron filings, in recent years, with DRI substituted metals reduced iron powder sewage disposal to be used for, and achieves effect well
Really, the example of domestic and international this respect is more and more.
DRI is polished into the short grained set of the iron that metal iron powder is that size is less than 1mm, in black or silver gray, can
The metallurgy industries such as metallurgy, casting are widely used in, are also the primary raw material in the field such as powder metallurgy and chemical industry, food, its application
Field is widely.
Carbon-based fertilizer series adopt high-quality crop charcoal to form for main feed purification.Situation of the biological material in anoxic
Under, a class infusibility, stable, height aromatization, the consolidating rich in carbon that 500～600 DEG C of high temperature above pyrolysis of Jing are produced
State material.Carbon of the crop biological carbon rich in 75%～95% (wt), next to that ash content, including the gold such as potassium, magnesium, calcium, silicon, manganese, zinc
The oxide of category and a small amount of volatile matter.
Charcoal base composite organic-inorganic fertilizer (Chemical Mixed Fertilizer), refers to biomass carbon dust with composite organic-inorganic fertilizer (Chemical Mixed Fertilizer) rationally
Compatibility is so as to the environmental fertilizer for being formed.
Carbon-based fertile basic theories is clay fertilizer charcoal base organism, that is, increase the content of charcoal base-organic matter in soil, is quickly changed
Soil texture, balance salt and moisture are made, the soil environment for being conducive to plant health to grow is created by rapid aging, so as to increase
Soil fertility, promotes plant growth.Carbon-based fertile basic theories is visually referred to as " soil life by Agricultural University Of Nanjing professor Pan Genxing
Thing bridge technology ".
Now carbon-based fertilizer also slowly commercially circulates, and many peasant households also begin to focus on supplementing carbon, present market to soil
On mainly have：Biological organic fertilizer, biomass carbon soil conditioner, biomass carbon composite microbiological fertilizer, carbon energy bio-bacterial manure, liquid
The products such as state carbon fertilizer；Product category also begins to slowly variation, but final purpose is all, supplements the carbon unit needed for plant
Element, improves the crumb structure of soil, improves the ability of soil water-reataining fertilizer-keeping, improves utilization rate of fertilizer.
Present market existing external heat (flame-insulating type) rotary kiln, due to having backing ring, support roller support meanss in the middle of kiln, plus
Also backing ring, support roller support section can only be reserved between hot stove, kiln high temperature section disconnects, it is impossible to heat over long distances, temperature curve is in ripple
Wave-like, forms segmented external heat (flame-insulating type) rotary kiln heating furnace, therefore, kiln scale is less, reduction temperature is relatively low, high temperature
The temperature in area is discontinuous, unstable, it is impossible to realize that rotary kiln entire body is heated over long distances, reduction kiln is short, and production capacity is low, temperature curve
Fluctuation is larger, it is impossible to adapt to requirement of the reduced iron to reduction temperature stability, can only on a small scale be used for chemical industry, coloured
The less industry of the treating capacities such as noble metal, it is impossible to meet the application and development in reduced iron field.
The content of the invention
A kind of deficiency that the present invention exists for above-mentioned prior art, there is provided the two-sided flame-insulating type heating rotary kiln of entire body and straight
The carbon-based fertile method of reduced iron coproduction is connect, using metallurgical solid waste and in addition to using various coals, it would however also be possible to employ farming
The biological materials such as thing straw refuse as reducing agent, using kiln body physical burden it is little, filling rate is high, high-temperature region entire body is two-sided
The features such as reducing atmosphere is abundant in flame-insulating type heating (external heat), rotary kiln, realizes that low temperature, depth, quick, high production capacity production are straight
Connect the carbon-based fertile fertilizer co-product of reduced iron major product coproduction.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：A kind of two-sided flame-insulating type heating rotary kiln of entire body, bag
Include cylinder of rotary kiln, charging gear and driving means, the driving means kiln tail driving means, kiln hood driving means, outer sleeve
Driving means, chilling roll driving means and feed drum drive, it is characterized in that, the cylinder of rotary kiln includes
Outer tube and inner core, the outer tube includes successively from front to back the discharging of kiln tail feed zone, preheating section, high temperature section, cooling section and kiln hood
Section；The outer barrel of the kiln tail feed zone, preheating section, high temperature section and cooling section is provided with inner core, between the outer tube and inner core
Drastic reduction room is formed, the inner core inside is heating chamber；
The charging gear includes feed cylinder, feed hopper, tremie pipe and smoke exhaust pipe, and the smoke exhaust pipe is placed in feed cylinder
It is interior, feed compartment is formed between smoke exhaust pipe and feed cylinder, the feed hopper is communicated to feed compartment by tremie pipe；The feed rolling
Cylinder front end is provided with feed cylinder seal closure, and the feed cylinder rear end is provided with anti-coal gas adverse current and covers；The feed cylinder rear end leads to
Cross material inlet and be communicated to drastic reduction room；The feed cylinder is externally provided with feed cylinder backing ring, the feed drum drive
Charging gear rotation is driven by being fed cylinder backing ring；
The inner core front end of the kiln tail feed zone connects with the rear end of the smoke exhaust pipe；The outer cylinder front end and anti-coal gas are inverse
Stream cover is externally provided with kiln tail seal closure, and the kiln tail seal closure top is provided with gas exit；The kiln tail seal closure is externally provided with kiln tail
Backing ring, the kiln tail driving means drive the rotation of kiln tail feed zone by kiln tail backing ring；
In heating furnace for preheating body, the high temperature section is located in high-temperature heating body of heater group the preheating section, the cooling
Section is outside cooling heating furnace body；Described high-temperature heating body of heater group includes multistage high-temperature heating body of heater；The heating furnace for preheating
Body, high-temperature heating body of heater and cooling heating furnace body are externally provided with insulation furnace shell, the heating furnace for preheating body, high-temperature heating body of heater and cold
But side is equipped with some burners in heating furnace body；
Outer tube and inner core in the heating furnace for preheating body is provided with preheating section high-temperature flue gas import arm, the preheating section
High-temperature flue gas import arm connects heating furnace for preheating body and heating chamber；Outer tube and inner core in the high-temperature heater body is provided with
High temperature section high-temperature flue gas import arm, the high temperature section high-temperature flue gas import arm connection high-temperature heating body of heater and heating chamber；Institute
The outer tube and inner core stated in cooling heating furnace body is provided with cooling section high-temperature flue gas import arm, and the cooling section high-temperature flue gas enter
Mouth arm connection cooling heating furnace body and heating chamber；
The heating furnace for preheating body, outer sleeve device is equipped between high-temperature heating body of heater and cooling down high-temperature body of heater；
The kiln hood discharging section is externally provided with kiln hood backing ring, and the kiln hood driving means drive kiln hood discharging by kiln hood backing ring
Duan Xuanzhuan；The kiln hood discharging section rear end is provided with kiln hood seal closure, and described kiln hood seal closure one end is communicated to conveying worm, separately
One end is communicated to chilling roll.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the outer sleeve device includes rotary kiln outer sleeve, and the rotary kiln outer sleeve is set by supporting shifting block
Put outside the outer tube, high temp. flue is formed between the rotary kiln outer sleeve and outer tube, the outer sleeve outside is provided with
Fire resistant heat preserving felt；Supporting clapboard is provided between the inner core and outer tube；It is supported by outward by connecting plate outside the fire resistant heat preserving felt
Sleeve backing ring, the outer sleeve driving means drive the rotation of outer sleeve device by outer sleeve backing ring；
The support shifting block includes that rotation shifting block I and rotation shifting block II, the rotation shifting block I are distributed in the outer sleeve
Surface forms " external gear ", and the rotation shifting block II is distributed on the outer tube outer surface and forms " internal gear ", the external gear with
Internal gear is intermeshed.
Be using the beneficial effect of above-mentioned further scheme, per between two sections of heating furnaces arrange outer sleeve device, in height
During temperature operating, there is longitudinal dilatation in cylinder of rotary kiln, and rotation shifting block I and rotation shifting block II are intermeshed, and outer sleeve device is outside
Do together with cylinder of rotary kiln under the effect of sleeve driving means with week, synchronized operating；During cooling, there is longitudinal direction and receive in cylinder of rotary kiln
Contracting, cylinder of rotary kiln does contraction sliding and running in outer sleeve, until playback, stops the rotation.So, it is ensured that every section of heating furnace
In high-temperature flue gas Jing high temp. flues smoothly discharge, it is ensured that the temperature stability of reduced material, make material reduce more
Thoroughly.By the fire resistant heat preserving felt in one layer of 200-220mm of outer sleeve peripheral hardware meter, heat-energy losses are further reduced, it is ensured that return
Rotary kiln cylinder runs at high operating temperatures safe and stable, reliable.
In addition, outer sleeve device causes to form high temp. flue between outer sleeve and outer tube, it is ensured that between heating furnace body
There is the direct motion of high-temperature flue gas, make multiple revolution outer sleeve devices and multiple heating furnace bodies form a complete entire body heating furnace,
Ensure that the direct motion of high-temperature flue gas so that the temperature curve of drastic reduction room is linearly, it is ensured that reducing process is required.
Further, the chilling roll top is provided with spray equipment, and the outlet of the chilling roll passes to repeatedly dry type magnetic
Select machine；The chilling roll is externally provided with chilling roll backing ring, and the chilling roll driving means are driven by chilling roll backing ring
Chilling roll rotates.
It is using the beneficial effect of above-mentioned further scheme, rotary kiln double shell, chilling roll, the dry type magnetic separation of the present invention
Machine collectively forms the drastic reduction iron system of complete set, more preferable to realize the quick reduced iron of low temperature depth.
Further, the driving means include motor, support, support roller and position-limited wheel, and the motor support is in the support
On, the motor output end is provided with support roller, and the support roller outside is provided with position-limited wheel, and the support roller, backing ring are engaged with position-limited wheel
Rotation.
It is using the beneficial effect of above-mentioned further scheme, the rotation of Motor drive support roller, drive backspin of the backing ring in support roller
Turn, from the outside sleeve arrangement expansion in both sides when position-limited wheel causes rotary kiln double shell to be heated, so that the rotation of outer sleeve device
Shifting block I and rotation shifting block II are intermeshed, and then realize same week of the outer sleeve device with rotary kiln double shell, synchronized operating.
Further, the axis of the cylinder of rotary kiln and horizontal line angle are 1.5 ° -5 °, and the kiln tail feed zone is higher than kiln
Head discharging section.
It is to be obliquely installed using the beneficial effect of above-mentioned further scheme, the solid state in cylinder of rotary kiln can be made
Reduction iron product and material are slowly descending by the gradient of self gravitation and kiln, and the coal gas produced in reduction process and flue gas float
And the motion that hoists, finally discharge from gas exit and high-temperature flue gas outlet and collect, realize that preheating is recycled.
Further, the bent envelope of preheating section kiln wall, the bent envelope of the preheating section kiln wall and outer tube are provided with the heating furnace for preheating body
It is welded as a whole；It is interior in the high-temperature heater body to be provided with the bent envelope of high temperature section kiln wall, the bent envelope of the high temperature section kiln wall and outer tube
It is welded as a whole.
It is effectively to prevent from turning round footpath of the outer sleeve device in High Temperature Rotating using the beneficial effect of above-mentioned further scheme
To expansion, it is ensured that the flue gas in each heating furnace body does not leak, and it is safe and stable, reliable to ensure that kiln rotates.
Further, the outer tube of the cylinder of rotary kiln, inner core, preheating section high-temperature flue gas import arm, high temperature section high temperature cigarette
Gas entrance branch, cooling section high-temperature flue gas import arm, revolution outer sleeve device material be 310S, 330,600,
The high-quality heat-resistance stainless steel material such as 38Cr48NiW2Si2.
It is using the beneficial effect of above-mentioned further scheme, using heat-resisting steel cylinder so that in high temperature or cooling, cylinder
Be not in radially and longitudinally to expand or striction phenomenon, efficiently solving flame-insulating type heating rotary kiln in theory can be fabricated into nothing
The problem of limit for length；There is in high temperature environments good thermal fatigue resistance and resistance to elevated temperatures and non-oxidizability, Reusability is difficult
Decrepitation is produced, maximum operation (service) temperature can reach more than 1150～1250 DEG C.
Further, the feed hopper is divided into iron material hopper and reducing agent hopper；The tremie pipe is divided into iron material blanking
Pipe and reducing agent tremie pipe；The iron material hopper and reducing agent hopper are respectively communicated with iron material tremie pipe and reducing agent blanking
Pipe；The iron material tremie pipe and reducing agent tremie pipe are communicated to feed compartment.
Second object of the present invention is to provide a kind of straight using the two-sided flame-insulating type heating rotary kiln production of above-mentioned entire body
The method for connecing the carbon-based fertilizer of reduced iron coproduction, step is as follows：
(1) Raw material processing
Take biomass castoff to smash, the particle of ￠ 8mm × (5～10) mm is squeezed into using extruder, according to being reduced
Iron weight of material 40-50% with addition of, mixing；
(2) drastic reduction
The batch mixing of step (1) is entered into feed cylinder from feed hopper along tremie pipe, then drastic reduction is entered by material inlet
Room, through preheating section and high temperature section, heating furnace body is heated to 1050-1080 DEG C by burner, and 1.5～2.8h of drastic reduction is passed through
Kiln hood discharging section is entered after cooling section；
(3) magnetic separation is separated
Biological material particle is sent into kiln head cover, biological material particle and kiln hood discharging section by conveying worm
Reduced material mixes, and into chilling roll, after cooling down under spray equipment effect, using dry-type magnetic extractor reduced iron is isolated
Product and carbon-based fertilizer；
(4) the 1-20mm direct-reduction iron products isolated step (3) reduction magnetic separation are polishing to 0-1mm fineness, are used for
Sewage, spent acid process；Or the 1-20mm direct-reduction iron products for isolating step (3) reduction magnetic separation are cold-pressed into ball block, into
For metal cold pressing block MBI products；
The granularity that step (3) reduction magnetic separation is isolated is the biological material after drying, the destructive distillation of 0-8mm, screens out it
Middle fineness is recycled for the coarse granule of 2-8mm as reducing agent, and wherein fineness is carbon-based fertile by-product for the mixture of 0-2mm
Product.
Wherein, the iron material being reduced described in step (1) is 1-10mm for the iron oxide or fineness of fineness 1-20mm
Gas cutting slag.
The invention has the beneficial effects as follows：
1st, the cylinder of rotary kiln of present invention design is that outer tube and inner core double shell are designed, and depth is formed between outer tube and inner core
Reduction room, drastic reduction room gap (thickness) is 150～300mm, and by supporting clapboard 6～12 drastic reductions are divided into
Room, can load the reducing material of equivalent in the drastic reduction room at each interval, the normal filling rate of monotubular rotary kiln is generally
12%～15%, the filling rate of patent device improves 6～12 times, and the production capacity of rotary kiln also improves 6～12 times, increases greatly
Add the production production capacity of kiln, while kiln specification is also relatively reduced, the relative investment for greatly reducing kiln.
2nd, the present invention is provided with smoke exhaust pipe in feed cylinder, and the high-temperature flue gas in smoke exhaust pipe can be pre- to reduced material
Heat, therefore the rotary kiln of the present invention substantially reduces energy consumption without using the raw material of advance high temperature sintering；The design of feed cylinder rear end
The anti-coal gas adverse current cover gas leak that can effectively prevent in kiln.
3rd, the preheating section high-temperature flue gas import arm of present invention design, high temperature section high-temperature flue gas import arm and cooling section are high
High-temperature flue gas are passed through heating chamber inside inner core by warm gas approach arm from heating furnace body, and flue gas is entered from heating chamber discharges fume
Pipe is discharged so that the reducing material of drastic reduction chamber interior is through inside and outside two-sided flame-insulating type heating, heating furnace body and heating chamber
The temperature difference is little, and drastic reduction room is fully closed, and reduction temperature only needs 1050 DEG C～1080 DEG C, in belonging to various coal based ferrum redactum methods
Minimum reduction temperature, in the case of this relatively low reduction temperature, the recovery time only has 1.5～2.8h；Simultaneously as heating
Temperature is less than 1100 DEG C, therefore avoids the generation of NOx；The coal-based rotary kiln heated using flame-insulating type, rotary kiln temperature phase
To relatively low, reducing agent consumption is few, and the high-temperature tail gas of collection can be used for the drying of wet oxidation pelletizing, it is also possible to for heating furnace combustion
Burn heating to use, energy saving, environmental protection.
4th, reducing material of the invention is that two-sided external heat is carried out in the case where flame condition is completely cut off completely, therefore generation of volatilizing
Coal gas be high PG, can be drawn by gas fan from gas exit, Jing decokings, dust removal process, for Coal Chemical Industry or from
The burning of body heating furnace is used, and the coal gas of recovery can meet the burning energy of heating furnace body of the present invention 30%～60%, accomplish energy
Source comprehensively utilizes, and energy consumption is reduced, while also reducing carbon emission.
5th, in device of the invention thicker refractory material is not provided with as furnace lining, therefore kiln body gross weight can reduce 60%
～80% weight, greatly reduces kiln body physical burden, decreases the power of tiling arrangement, while reducing due to resistance to material
The accident rate that problem is caused, makes kiln operating light and handy, flexible；Further, since being the heating of entire body flame-insulating type, kiln atmosphere and temperature
Stable, the temperature difference is little, can realize that " fool " formula is operated during operation, less demanding to the professional standards of operative employee.
6th, the method for the carbon-based fertilizer of DRI coproduction produced using the rotary kiln of the present invention, using biomass such as stalks
Material solves pollution of the biological material burning to environment as reducing agent, realizes that low temperature, depth, quick, high yield are restored
DRI or reduced iron powder (metal iron powder) product, except being applied to excellent Melting of Special Steels, apply also for metallurgical high-quality stove
The products such as chemical industry deoxidation, depickling, the cleanser of material or sewage disposal, spent acid displacement etc.；High concentration coal gas and connection can also be reclaimed
The carbon-based fertile fertilizer co-product of generation, and energy-saving and emission-reduction carbon drop is realized, and do not produce NOx.
Description of the drawings
Fig. 1 is the longitudinal profile schematic diagram of the present invention；
Fig. 2 is the enlarged diagram of preheating section in Fig. 1；
Fig. 3 is the enlarged diagram of cooling section in Fig. 1；
Fig. 4 is A-A directions sectional schematic diagram in Fig. 1；
Fig. 5 is enlarged diagram at B in Fig. 1；
Fig. 6 is C-C directions sectional schematic diagram in Fig. 5；
Fig. 7 is D-D directions sectional schematic diagram in Fig. 1；
Fig. 8 is E-E directions sectional schematic diagram in Fig. 1；
Fig. 9 is enlarged diagram at F in Fig. 8；
Figure 10 is enlarged diagram at M in Fig. 1；
Figure 11 is enlarged diagram at N in Fig. 1；
Figure 12 is the right view of Figure 11；
In figure, 1, outer tube；2nd, inner core；3rd, kiln tail feed zone；4th, preheating section；5th, high temperature section；6th, cooling section；7th, kiln hood discharging
Section；8th, drastic reduction room；9th, heating chamber；10th, it is fed cylinder；11st, feed hopper；12nd, tremie pipe；13rd, smoke exhaust pipe；14th, feed compartment；
15th, it is fed cylinder seal closure；16th, anti-coal gas adverse current is covered；17th, material inlet；18th, it is fed cylinder backing ring；19th, it is fed drum driven dress
Put；20th, kiln tail seal closure；21st, gas exit；22nd, kiln tail backing ring；23rd, kiln tail driving means；24th, heating furnace for preheating body；25、
High-temperature heating body of heater；26th, heating furnace body is cooled down；27th, it is incubated furnace shell；28th, burner；29th, preheating section high-temperature flue gas import arm；
30th, high temperature section high-temperature flue gas import arm；31st, cooling section high-temperature flue gas import arm；32nd, outer sleeve device；34th, kiln hood support
Circle；35th, kiln hood driving means；36th, kiln hood seal closure；37th, conveying worm；38th, chilling roll；39th, rotary kiln outer sleeve；
40th, high temp. flue；41st, fire resistant heat preserving felt；42nd, supporting clapboard；43rd, connecting plate；44th, outer sleeve backing ring；45th, outer sleeve drives
Dynamic device；46th, shifting block I is rotated；47th, shifting block I I are rotated；48th, spray equipment；49th, dry-type magnetic extractor；50th, chilling roll backing ring；
51st, chilling roll driving means；52nd, motor；53rd, support；54th, support roller；55th, position-limited wheel；56th, reduced material；57th, reduced iron
Product；58th, carbon-based fertilizer；59th, the bent envelope of preheating section kiln wall；60th, the bent envelope of high temperature section kiln wall；61st, iron material hopper；62nd, reducing agent material
Bucket；63rd, iron material tremie pipe；64th, reducing agent tremie pipe.
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and
It is non-for limiting the scope of the present invention.
A kind of two-sided flame-insulating type heating rotary kiln of entire body, including cylinder of rotary kiln, charging gear and driving means, the drive
Dynamic device kiln tail driving means, kiln hood driving means, outer sleeve driving means, chilling roll driving means and feed drum driven
Device, it is characterized in that, the cylinder of rotary kiln includes outer tube 1 and inner core 2, and the outer tube includes successively from front to back kiln
Tail feed zone 3, preheating section 4, high temperature section 5, cooling section 6 and kiln hood discharging section 7；The kiln tail feed zone, preheating section, high temperature section and
The outer barrel of cooling section is provided with inner core, and drastic reduction room 8 is formed between the outer tube and inner core, and the inner core inside is heating
Room 9；
The charging gear includes feed cylinder 10, feed hopper 11, tremie pipe 12 and smoke exhaust pipe 13, and the smoke exhaust pipe is placed in
In feed cylinder, feed compartment 14 is formed between smoke exhaust pipe and feed cylinder, the feed hopper is communicated to feed compartment by tremie pipe；
The feed drum front end is provided with feed cylinder seal closure 15, and the feed cylinder rear end is provided with anti-coal gas adverse current cover 16；It is described
Feed cylinder rear end is communicated to drastic reduction room by material inlet 17；The feed cylinder is externally provided with feed cylinder backing ring 18, institute
State feed drum drive 19 and charging gear rotation is driven by feed cylinder backing ring；
11 points of the feed hopper is iron material hopper 61 and reducing agent hopper 62；12 points of the tremie pipe is iron material blanking
Pipe 63 and reducing agent tremie pipe 64；The iron material hopper and reducing agent hopper are respectively communicated with iron material tremie pipe and reducing agent
Expects pipe；The iron material tremie pipe and reducing agent tremie pipe are communicated to feed compartment.
The inner core front end of the kiln tail feed zone connects with the rear end of the smoke exhaust pipe；The outer cylinder front end and anti-coal gas are inverse
Stream cover is externally provided with kiln tail seal closure 20, and the kiln tail seal closure top is provided with gas exit 21；The kiln tail seal closure is externally provided with
Kiln tail backing ring 22, the kiln tail driving means 23 drive the rotation of kiln tail feed zone by kiln tail backing ring；
The preheating section is in heating furnace for preheating body 24, and the high temperature section is described cold in high-temperature heating body of heater group
But section is in cooling heating furnace body 26；Described high-temperature heating body of heater group includes multistage high-temperature heating body of heater 25；The preheating
Heating furnace body, high-temperature heating body of heater and cooling heating furnace body are externally provided with insulation furnace shell 27, the heating furnace for preheating body, high-temperature heating
Side is equipped with some burners 28 in body of heater and cooling heating furnace body；
Outer tube and inner core in the heating furnace for preheating body is provided with preheating section high-temperature flue gas import arm 29, the preheating
Section high-temperature flue gas import arm connection heating furnace for preheating body and heating chamber；Set on outer tube and inner core in the high-temperature heater body
There are high temperature section high-temperature flue gas import arm 30, the high temperature section high-temperature flue gas import arm connection high-temperature heating body of heater and heating
Room；Outer tube and inner core in the cooling heating furnace body is provided with cooling section high-temperature flue gas import arm 31, and the cooling section is high
Warm gas approach arm connection cooling heating furnace body and heating chamber；
Outer sleeve device 32 is equipped between the heating furnace for preheating body, high-temperature heating body of heater and cooling heating furnace body；
The kiln hood discharging section is externally provided with kiln hood backing ring 34, and the kiln hood driving means 35 drive kiln hood by kiln hood backing ring
Discharging section rotates；The kiln hood discharging section rear end is provided with kiln hood seal closure 36, and described kiln hood seal closure one end is communicated to spiral transferring
Machine 37, the other end is sent to be communicated to chilling roll 38；
The outer sleeve device includes rotary kiln outer sleeve 39, and the rotary kiln outer sleeve is arranged on institute by supporting shifting block
State outside outer tube, high temp. flue 40 is formed between the rotary kiln outer sleeve and outer tube, the outer sleeve outside is provided with fire resisting
Insulation quilt 41；Supporting clapboard 42 is provided between the inner core and outer tube；It is supported by by connecting plate 43 outside the fire resistant heat preserving felt
Outer sleeve backing ring 44, the outer sleeve driving means 45 drive the rotation of outer sleeve device by outer sleeve backing ring；
The support shifting block includes that rotation shifting block I46 and rotation shifting block II47, the rotation shifting block I are distributed on the overcoat
Tube inner surface forms external gear, and the rotation shifting block II is distributed on the outer tube outer surface and forms internal gear, the external gear and
Internal gear is intermeshed；
The chilling roll top is provided with spray equipment 48, and the outlet of the chilling roll passes to repeatedly dry-type magnetic extractor
49；The chilling roll is externally provided with chilling roll backing ring 50, and the chilling roll driving means 51 pass through chilling roll backing ring band
Dynamic chilling roll rotation；
The driving means include motor 52, support 53, support roller 54 and position-limited wheel 55, and the motor support is in the support
On, the motor output end is provided with support roller, and the support roller outside is provided with position-limited wheel, and the support roller, backing ring are engaged with position-limited wheel
Rotation；
The axis of the cylinder of rotary kiln and horizontal line angle are 1.5 ° -5 °, and the kiln tail feed zone discharges higher than kiln hood
Section；
The bent envelope 59 of preheating section kiln wall is provided with the heating furnace for preheating body, the bent envelope of the preheating section kiln wall is welded as with outer tube
Integrally；The bent envelope 60 of high temperature section kiln wall is provided with the high-temperature heater body, the bent envelope of the high temperature section kiln wall is welded as one with outer tube
Body.
A kind of method using the carbon-based fertilizer of the two-sided flame-insulating type heating rotary kiln production DRI coproduction of above-mentioned entire body, step
It is rapid as follows：
(1) Raw material processing
Take biomass castoff to smash, the particle of ￠ 8mm × (5～10) mm is squeezed into using extruder, according to being reduced
Iron weight of material 40-50% with addition of, mixing；
(2) drastic reduction
The batch mixing of step (1) is entered into feed cylinder from feed hopper along tremie pipe, then drastic reduction is entered by material inlet
Room, through preheating section and high temperature section, heating furnace body is heated to 1050-1080 DEG C by burner, and 1.5～2.8h of drastic reduction is passed through
Kiln hood discharging section is entered after cooling section；
(3) magnetic separation is separated
Biological material particle is sent into kiln head cover, biological material particle and kiln hood discharging section by conveying worm
Reduced material mixes, and into chilling roll, after cooling down under spray equipment effect, using dry-type magnetic extractor reduced iron is isolated
Product and carbon-based fertilizer；
(4) the 1-20mm direct-reduction iron products isolated step (3) reduction magnetic separation are polishing to 0-1mm fineness, are used for
Sewage, spent acid process；Or the 1-20mm direct-reduction iron products for isolating step (3) reduction magnetic separation are cold-pressed into ball block, into
For metal cold pressing block MBI products；
The granularity that step (3) reduction magnetic separation is isolated is the biological material after drying, the destructive distillation of 0-8mm, screens out it
Middle fineness is recycled for the coarse granule of 2-8mm as reducing agent, and wherein fineness is carbon-based fertile by-product for the mixture of 0-2mm
Product.
The index of the reduced material used in the embodiment of the present invention is shown in Table 1, the index of biomass carbon and carbon-based fertile material
It is shown in Table 2.
Table 1
| Title | Fe% | S | P | Moisture content % | Fineness |
| Iron scale | ≥72.0 | 0.06 | 0.04 | 10 | 2～20mm |
| Hot candied iron scale | ≥72.0 | 0.06 | 0.04 | 4.5 | 2～5mm |
| Gas cutting slag | ≥73.0 | 0.06 | 0.04 | 2.0 | 5～20mm |
Table 2
Embodiment 1
By iron scale weight with addition of 45% the particle crossed of biomass carbonization, grain graininess ￠ 8mm × 6mm incite somebody to action the two
Mixing adds flame-insulating type rotary kiln, the reductase 12 .5h at a temperature of 1080 DEG C, after cooling section discharging, using biological material
Grain covering protection, through chilling roll 150 DEG C are cooled to, and using dry type magnetic separation the direct-reduction iron product of 1-20mm is isolated,
0-1mm fineness, as high-quality chemical industry metal iron powder, water purification agent or reduced iron powder product are polished into again；Take dry type magnetic separation point
The granularity for separating out is the biomass carbon material after drying, the destructive distillation of 0-8mm, and it is the coarse granule of 2-8mm to screen out wherein fineness, is made
For reducing agent recycling, the fineness under sieve is carbon-based fertile byproduct for the mixture of 0-2mm.
Product index is as follows：
1) iron product is reduced
2) carbon-based fertilizer
Embodiment 2
By hot candied iron scale weight with addition of 50% biomass carbon particle (straw extrusion drying after), grain graininess ￠
8mm × 8mm, the two addition flame-insulating type rotary kiln, the reductase 12 .6h at a temperature of 1050 DEG C after cooling section discharging, are adopted
Biological material particle covering protection, through chilling roll 150 DEG C are cooled to；Take the direct of the 1-20mm that dry type magnetic separation is isolated
Reduction iron product, balling-up block of being colded pressing, used as the reduction iron product for smelting high-quality special steel, as metal cold pressing block (MBI) is produced
Product；It is the biomass carbon material after drying, the destructive distillation of 0-8mm to take the granularity that dry type magnetic separation isolates, and screens out fineness for 2-8mm
Coarse granule, recycle as reducing agent, it is carbon-based fertile byproduct to sieve lower fineness for the mixture of 0-2mm.
Product index is as follows：
1) iron product is reduced
2) carbon-based fertilizer
Embodiment 3
By gas cutting slag cracking and sorting 2～10mm particles, by gas cutting slag weight with addition of 48% carbonization biomass carbon particle,
Grain graininess ￠ 6.5mm × 7mm, by the two addition flame-insulating type rotary kiln, the reductase 12 .8h at a temperature of 1070 DEG C, through cooling section
After discharging, using biological material particle covering protection, through chilling roll 180 DEG C are cooled to；Take what dry type magnetic separation was isolated
The direct-reduction iron product of 1-20mm, is polished into 0-1mm fineness, as high-quality chemical industry metal iron powder, water purification agent or reduction
Iron powder product；It is the biomass carbon material after drying, the destructive distillation of 0-8mm to take the granularity that dry type magnetic separation isolates, and screens out fineness
For the coarse granule of 2-8mm, recycle as reducing agent, the fineness under sieve is carbon-based fertile byproduct for the mixture of 0-2mm.
Product index is as follows：
1) iron product is reduced
2) carbon-based fertilizer
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (8)
1. the two-sided flame-insulating type heating rotary kiln of a kind of entire body, including cylinder of rotary kiln, charging gear and driving means, the driving
Device kiln tail driving means, kiln hood driving means, outer sleeve driving means, chilling roll driving means and feed drum driven dress
Put, it is characterised in that the cylinder of rotary kiln includes outer tube and inner core, and the outer tube is from front to back successively including kiln tail charging
Section, preheating section, high temperature section, cooling section and kiln hood discharging section；Outside the kiln tail feed zone, preheating section, high temperature section and cooling section
Cylinder is internal to be provided with inner core, and drastic reduction room is formed between the outer tube and inner core, and the inner core inside is heating chamber；
The charging gear includes feed cylinder, feed hopper, tremie pipe and smoke exhaust pipe, and the smoke exhaust pipe is placed in feed cylinder,
Feed compartment is formed between smoke exhaust pipe and feed cylinder, the feed hopper is communicated to feed compartment by tremie pipe；The feed cylinder
Front end is provided with feed cylinder seal closure, and the feed cylinder rear end is provided with anti-coal gas adverse current and covers；The feed cylinder rear end passes through
Material inlet is communicated to drastic reduction room；The feed cylinder is externally provided with feed cylinder backing ring, and the feed drum drive leads to
Cross feed cylinder backing ring and drive charging gear rotation；
The inner core front end of the kiln tail feed zone connects with the rear end of the smoke exhaust pipe；The outer cylinder front end and anti-coal gas adverse current are covered
Kiln tail seal closure is externally provided with, the kiln tail seal closure top is provided with gas exit；The kiln tail seal closure is externally provided with kiln tail backing ring,
The kiln tail driving means drive the rotation of kiln tail feed zone by kiln tail backing ring；
In heating furnace for preheating body, in high-temperature heating body of heater group, the cooling section sets the high temperature section preheating section
Outside cooling heating furnace body；Described high-temperature heating body of heater group includes multistage high-temperature heating body of heater；The heating furnace for preheating body, height
Warm heating furnace body and cooling heating furnace body are externally provided with insulation furnace shell, and the heating furnace for preheating body, high-temperature heating body of heater and cooling add
Side is equipped with some burners in hot body of heater；
Outer tube and inner core in the heating furnace for preheating body is provided with preheating section high-temperature flue gas import arm, the preheating section high temperature
Gas approach arm connects heating furnace for preheating body and heating chamber；Outer tube and inner core in the high-temperature heater body is provided with high temperature
Section high-temperature flue gas import arm, the high temperature section high-temperature flue gas import arm connection high-temperature heating body of heater and heating chamber；It is described cold
But the outer tube and inner core in heating furnace body is provided with cooling section high-temperature flue gas import arm, the cooling section high-temperature flue gas import
Pipe connection cooling heating furnace body and heating chamber；
The heating furnace for preheating body, outer sleeve device is equipped between high-temperature heating body of heater and cooling down high-temperature body of heater；
The kiln hood discharging section is externally provided with kiln hood backing ring, and the kiln hood driving means drive the rotation of kiln hood discharging section by kiln hood backing ring
Turn；The kiln hood discharging section rear end is provided with kiln hood seal closure, and described kiln hood seal closure one end is communicated to conveying worm, the other end
It is communicated to chilling roll.
2. the two-sided flame-insulating type heating rotary kiln of entire body according to claim 1, it is characterised in that the outer sleeve device bag
Rotary kiln outer sleeve is included, the rotary kiln outer sleeve is arranged on outside the outer tube by supporting shifting block, the rotary kiln outer sleeve
High temp. flue is formed and outer tube between, the outer sleeve outside is provided with fire resistant heat preserving felt；Set between the inner core and outer tube
There is supporting clapboard；Outer sleeve backing ring is supported by by connecting plate outside the fire resistant heat preserving felt, the outer sleeve driving means pass through
Outer sleeve backing ring drives the rotation of outer sleeve device；
The support shifting block includes that rotation shifting block I and rotation shifting block II, the rotation shifting block I are distributed on the outer sleeve inner surface
Formed " external gear ", the rotation shifting block II is distributed on outer tube outer surface formation " internal gear ", the external gear and internal tooth
Wheel intermeshing.
3. the two-sided flame-insulating type heating rotary kiln of entire body according to claim 1, it is characterised in that the chilling roll top
Spray equipment is provided with, the outlet of the chilling roll passes to repeatedly dry-type magnetic extractor；The chilling roll is externally provided with chilling roll
Backing ring, the chilling roll driving means drive chilling roll rotation by chilling roll backing ring.
4. the two-sided flame-insulating type heating rotary kiln of entire body according to claim 1, it is characterised in that the driving means include
Motor, support, support roller and position-limited wheel, on the bracket, the motor output end is provided with support roller, the support to the motor support
Wheel outside is provided with position-limited wheel, and the support roller, backing ring are engaged rotation with position-limited wheel.
5. the two-sided flame-insulating type heating rotary kiln of entire body according to claim 1, it is characterised in that the cylinder of rotary kiln
Axis and horizontal line angle are 1.5 ° -5 °, and the kiln tail feed zone is higher than kiln hood discharging section.
6. the two-sided flame-insulating type heating rotary kiln of entire body according to claim 1, it is characterised in that the feed hopper is divided into iron
Raw material hopper and reducing agent hopper；The tremie pipe is divided into iron material tremie pipe and reducing agent tremie pipe；The iron material hopper
Iron material tremie pipe and reducing agent tremie pipe are respectively communicated with reducing agent hopper；The iron material tremie pipe and reducing agent tremie pipe
It is communicated to feed compartment.
It is 7. a kind of to utilize the carbon-based fertile method of the two-sided flame-insulating type heating rotary kiln DRI coproduction of entire body described in claim 1,
Characterized in that, step is as follows：
(1) Raw material processing
Take biomass castoff to smash, the particle of ￠ 8mm × (5～10) mm is squeezed into using extruder, according to the iron being reduced
Weight of material 40-50% is with addition of mixing；
(2) drastic reduction
The batch mixing of step (1) is entered into feed cylinder from feed hopper along tremie pipe, then drastic reduction room, Jing are entered by material inlet
Preheating section and high temperature section are crossed, heating furnace body is heated to 1050-1080 DEG C by burner, 1.5～2.8h of drastic reduction, through cooling section
Kiln hood discharging section is entered afterwards；
(3) magnetic separation is separated
Biological material particle is sent into kiln head cover by conveying worm, biological material particle is gone back with kiln hood discharging section
Raw material mixes, and into chilling roll, after cooling down under spray equipment effect, using dry-type magnetic extractor reduction iron product is isolated
With carbon-based fertilizer；
(4) by step (3) reduce magnetic separation isolate 1-20mm direct-reduction iron product be polishing to 0-1mm fineness, for sewage,
Spent acid process；Or the 1-20mm direct-reduction iron products for isolating step (3) reduction magnetic separation are cold-pressed into ball block, become metal
Cold pressing block MBI products；
The granularity that step (3) reduction magnetic separation is isolated is the biological material after drying, the destructive distillation of 0-8mm, is screened out wherein thin
Spend the coarse granule for 2-8mm to recycle as reducing agent, wherein fineness is carbon-based fertile byproduct for the mixture of 0-2mm.
8. method according to claim 7, it is characterised in that the iron material being reduced described in step (1) is fineness
The iron oxide or fineness of 1-20mm is the gas cutting slag of 1-10mm.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559815A (en) * | 2018-07-09 | 2018-09-21 | 赵威 | The device and method of direct reduced iron is produced using biological straw |
| CN110229939A (en) * | 2019-07-15 | 2019-09-13 | 陶立群 | A kind of non-burnt iron-smelting device of two sections of kiln processes |
| CN110514021A (en) * | 2019-09-04 | 2019-11-29 | 营口仁和昌顺耐火材料有限公司 | A kind of rotation dynamic sinter system |
| CN110514001A (en) * | 2019-09-20 | 2019-11-29 | 营口仁和昌顺耐火材料有限公司 | A kind of parallel overlapping dynamic pre-heating drying calcination system |
| CN112592219A (en) * | 2020-12-28 | 2021-04-02 | 华中科技大学 | Aerobic composting system |
| CN113188327A (en) * | 2021-04-08 | 2021-07-30 | 朝阳重型机器制造有限公司 | Rotary kiln |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10330814A (en) * | 1997-05-30 | 1998-12-15 | Sumitomo Metal Ind Ltd | Method for changing raw material for producing reduced iron and device therefor |
| JP2000129325A (en) * | 1998-10-23 | 2000-05-09 | Sumitomo Metal Ind Ltd | Apparatus for charging raw material for producing reduced iron |
| CN103757168A (en) * | 2013-12-31 | 2014-04-30 | 李苏翔 | Iron making rotary kiln and iron making technology |
| CN104357611A (en) * | 2014-09-29 | 2015-02-18 | 石家庄新华能源环保科技股份有限公司 | Method and device for reduction ironmaking by dividing wall rotary kiln |
| CN104630407A (en) * | 2015-02-13 | 2015-05-20 | 唐竹胜 | Whole-body type external-heating muffle type rotary kiln |
-
2016
- 2016-10-12 CN CN201610890815.0A patent/CN106636519B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10330814A (en) * | 1997-05-30 | 1998-12-15 | Sumitomo Metal Ind Ltd | Method for changing raw material for producing reduced iron and device therefor |
| JP2000129325A (en) * | 1998-10-23 | 2000-05-09 | Sumitomo Metal Ind Ltd | Apparatus for charging raw material for producing reduced iron |
| CN103757168A (en) * | 2013-12-31 | 2014-04-30 | 李苏翔 | Iron making rotary kiln and iron making technology |
| CN104357611A (en) * | 2014-09-29 | 2015-02-18 | 石家庄新华能源环保科技股份有限公司 | Method and device for reduction ironmaking by dividing wall rotary kiln |
| CN104630407A (en) * | 2015-02-13 | 2015-05-20 | 唐竹胜 | Whole-body type external-heating muffle type rotary kiln |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108559815A (en) * | 2018-07-09 | 2018-09-21 | 赵威 | The device and method of direct reduced iron is produced using biological straw |
| CN110229939A (en) * | 2019-07-15 | 2019-09-13 | 陶立群 | A kind of non-burnt iron-smelting device of two sections of kiln processes |
| CN110229939B (en) * | 2019-07-15 | 2024-05-07 | 陶立群 | Two-section rotary kiln non-coke iron-making device |
| CN110514021A (en) * | 2019-09-04 | 2019-11-29 | 营口仁和昌顺耐火材料有限公司 | A kind of rotation dynamic sinter system |
| CN110514001A (en) * | 2019-09-20 | 2019-11-29 | 营口仁和昌顺耐火材料有限公司 | A kind of parallel overlapping dynamic pre-heating drying calcination system |
| CN112592219A (en) * | 2020-12-28 | 2021-04-02 | 华中科技大学 | Aerobic composting system |
| CN113188327A (en) * | 2021-04-08 | 2021-07-30 | 朝阳重型机器制造有限公司 | Rotary kiln |
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