Match Application Number Document Title
1 85100449 Coal-steam composite blast technique for blast furnace
As steam (or water) is added into the cold blast, heated by hot blast furnace to more than 1100 deg.C, it is sent to the blast furnace while coal powder is sprayed into the blast furnace...
2 85100843 Process of melt-reduction for producing pig iron using coal-containing spheric ...
The present invention relates to a process for producting pig iron using coal-containg spheric agglomerates, shaped coal or low-quality coal as starting material in a shaft furnace provi...
3 85100769 High temp. hot air valve cooled by vaporization
Valve seat and valve disc are cooled by forced vaporization. The small cooling jacket is made of thick wall seamless steel pipe. The valve stem is fitted with a new type stuffing box. Th...
4 85100733 Preheating type multi-fire-hole circular burner for hot-air stove
This burner has simple structure, good combustion feature, short flame when burning, high volumetric hot strength. The burner mounted on the top-combustion blast heating furnace can over...
5 85101592 High value cinder product made from slag processed by spraying powder method
The present invention is characterized in that the molten slag is treated by spraying powder process. Various products can be made depending on the slag and additive powder material. The...
6 85101937 Using lignite to smelt iron
A technology of smelting iron by direct reduction is presented. The crushed lignite and iron oreare mixed, then heated in a direct reuction equipment so as to get high grade ore. After t...
7 85102640 A method and an equipment for temperature-controlled combustion of pulveriyed c...
The characteristic of the method is that the amount of hot blast blended with the flowing pulverized coal,namely the excess air coefficient,is controlled so as to carry out temperature-c...
8 85102672 Mechanism for blast furnace top sharging
The charging is made through a rotary chatging feeding chute. The chute is hanged on a chute axle, and the axle is supported on a rotary body of the charging device. The chute will follo...
9 85101619 Top-burning hot-blast furnace with hot-air passage
The inner-burning hot-blast stove is of short service life, small heat store area and low blast temprature. The top-burning hot-blast stove is of too many holes on the stove top, high po...
10 85104051 Process of thermally threating lump or agglomerated materials on a moving grate
The thermal treatment is carried out by passing hot gases through the bed. The hot air passes downword through the bed in thermally treating zone, gases containing oxygen pass upword thr...
11 85103256 Method and means for mfg. a preformed metal product
A method and a means for continuously producing a preformed metal product through direct reduction of a material containing ferric oxide in a shaft furnace and feeding the product manufa...
12 85103346 Process for direct reduction of briquets bound with high molecular substances
A high molecular complex binder made by the inventers, ore concentrate and powdered coal are mixed and made into briquets. The briquets have a compressive strength of more than 20 kg/pie...
13 85104443 Temp. Control of hot-blast of alter-parallel blasting from stove of blast furna...
The operation of the temperature control system is accomplished through alternative parallel blasting and single stove blasting. The features of the present invention are as follows. The...
14 85104511 Arrangement comprising gasifier and direct reduction furnace
In the case of an arrangement comprising a gasifier and a direct reduction shaft furnace positioned above it and which is connected to the gasifier by a connecting shaft, the direct intr...
15 85105117 Equipment and technology for removing dust in the bag filter of blast furnace g...
An energy accumulator is installed between the blower and the filter, and between the accumulator and the exit of filter chamber are connected a reverse blowing valve and a spray nozzle....
16 85104824 Process for producing sponge iron
Iron oxide containing materials is directly reduced in a rotary kiln, and then discharged so to separat it into sponge iron and material containing residual carbon which carbon is burnt ...
17 85106445 Apparatus for repairing blast furnace with rotary hopper and process for repair...
The apparatus has a controlled sleeve-type gun fitted on a rotary hopper. The gun is stretchable, so that with the cooperation of the rotation and inclination of the hopper the gun can r...
18 85106482 Reforming of higher hydrocarbons
A method for utilizing pentane and higher hydrocarbons in a shaft furnace direct reduction process without any special treatment and without any special reforming catalyst, and in parti...
19 85106200 Method for directly reducing the ferrous oxide of the raw material
The invention uses gasified gas to reduce ferric oxide in material. The gasified gas is produced by a gasifier. Carbon reacts with oxide in sulphidized bed which has a receptor of sulphu...
20 85106000 Blast furnace equipment
In blast furnace especially those operating under back pressure, rough and fine ash separators and at least one turbine stage are provided at the top of the furnace. Besides these device...
21 85108059 Process and apparatus for producing sponge iron or pig iron
The present invention discloses a process for producing sponge iron from iron ore, which is reduced to sponge iron in a reduction shaft furnace by means of a hot reduction gas. For this p...
22 85107212 Metal ceramic no water cooling blast-furnace tuyere
This invention relates to blast-furnace tuyere which is made of metal ceramic and gets rid of water circulating system. The tuyere has the advantages of simple structre, low-cost and lon...
23 85107133 Flux blasting in blast furnace
This invention features that a portion of the flux needed for metallurgy of the blast furnace is fed into the furnace by blasting through blast furnace air nozzle for decreasing absorpti...
24 85108501 Process and apparatus for producing molten pig iron and semi-conduct of steel
A process and an arrangement for the production of molten pig iron or steel pre-products from particulate ferrous material as well as for the production of reducing gas in a meltdown gasi...
25 85108319 Blast furnace frame
The claimed frame is characterized by connecting furnace arch frame with furnace body frame and a rigid platform. The furnace arch frame and the furnace body frame make an angle of alpha...
26 85109186 Direct reducing kiln
This invention presents a kind of direct reducing process which is carried out in a rotary kiln. Solid carbonic matter containing high volatile components is pushed into the kiln from tw...
27 85108811 Process for the smelting reduction of ores
The present invention employs a mixture of the finely divided ore with equally finely divided reductant, which in the case of iron ores preferably is a coal. The mixture is fed into the i...
28 86100138 Process for the production of pig iron
A process for the production of pig iron from iron ore is disclosed. The pig iron is firstly converted to sponge iron in a direct reduction shaft furnace (1) and then the sponge iron is c...
29 85109284 Device with hydrostatic transmission for feeding material
The invention is involved with a charging device having a feeding chute hydrostatically transmitted for feeding raw materials. Its feeding chute can be turned in both forward and reverse...
30 86100818 Low temp. smelting technique for pyrite
Fine comminuted pyrite ore with granularity less than 100 mesh and ferriferous content more than 40% obtained via grinding and floatation is reduced to iron powder in low temp. reducing ...
31 86100484 Process and apparatus for producing sponge iron particles and molten pig iron
In this process for the direct production of sponge iron particles and molten pig iron from lump iron ore, which is reduced in a direct reduction unit (2), the sponge iron particles disch...
32 86102198 Technology and equipment for directly deoxy iron-smelting with two-stage cyclone
By means of the technology and equipment, the high-temperature gas which is produced from a reducing-smelting shaft-furnace and has a temperature higher than 1000 deg.C is used to pre-re...
33 86101817 Process for producing liquid iron and half-finished steel products using granul...
In a method of producing molten pig iron or steel pre-products from particulate ferrous material, as well as of producing reduction gas in a melt-down gasifier by adding coal and by blowi...
34 86102603 Process and apparatus for manufacturing slag sand (granular solids) with blast ...
The present invention is related to a kind of method for manufacturing slag sand (granular solids) which is made of blast furnace slag via high-pressure water flow granulation. In order ...
35 86102628 Device for injecting pulverulent material, such as coal, in a blast furnace
The invention relates to a device for injecting pulverulent material, such as coal, into a blast furnace. The device includes a hot blast tuyere issuing into the blast furnace, a nozzle f...
36 86103167 Process and apparatus for charging a shaft furnace
To ensure the vertical and symmetrical fall of the charging material from a hopper onto a distribution spout the discharge valve of the hopper and the valve of a chamber feeding material ...
37 86103851 Device for injecting divided solid materials in a furnace such as a smelting bl...
The tuyere comprises a substantially cylindrical or slightly convergent frusto-conical downstream part, and a divergent frusto-conical upstream part; the plasma torch is placed co-axially...
38 86103119 Start-up technology of blast furnace by blasting to the furnace bottom
This invention relates to a technology of using a kind of one-shot furnace bottom blowpipe installed in the furnace hearth before drying of the furnace. By the method of blasting to the ...
39 86104795 Super high pressure steadly operating method at blast furnace and furnace top d...
This invention relates to the method of super high pressure steadly operating with large blast furnace and device for furnace top. The device removes dust in furnace throat by means of s...
40 86103226 Process for controlling charging of shaft furnace
A process for controlling the charging of a shaft furnace of the type utilizing a distribution spout and one or more storage hoppers with each hopper being provided with a dosing device f...
41 86101529 Production of liquid iron
This invention concerns the method and equipment for production of liquid iron in electric melting furnace or iron melting furnace. It use the high reductive sponge iron to produce liqui...
42 86105271 Process for mfr. of iron by melting-reducing iron ores
A method of making iron by subjecting an iron oxide feedstock such as iron ore to a solid reduction with a reducing gas fed from a melt-reducing furnace (herein after referred to sometime...
43 86104673 Chute mechanism
This invention is provided for claim No.85109284, patd. titled "hydraulic transmission distributing device", another kind of inclined chute transmission mechanism, which teethless both i...
44 86105560 Method of operating blast furnace
According to a method of operating a blast furnace, pure oxygen, pulverized coal, and a temperature control gas which substantially does not contain nitrogen are blown from tuyères. A pr...
45 86105093 Method for producing raw iron foro iron concentrates and for the manufacture of...
A method for producing raw iron from iron-bearing oxidic material, comprising finally reducing the iron oxide by charging the iron oxide, coal, oxygen gas and slag-forming flux to a molte...
46 86106723 Method and apparatus for products molten iron using coal
A highly efficient method and apparatus for production of molten iron using coal by coal gasification in a molten iron gasifier-melter. The gasifier-melter is coupled to a direct reductio...
47 86105494 Direct refining and rolling of steel by pre-reduction of ore with lignite
The direct refining and rolling of steel by pre-reduction of ore with lignite is a novel technology in ferrous metallurgy. As compared with existing blast furnace or revolving furnace, t...
48 86107459 Branch-duct flow adjustor for a blast furnace coal-ejector
The present invention provides a branch-duct flow adjustor for a blast furnace coal-ejector. It uses an adjustable coal powder feeder driven by a numerically-controlled cylinder. The fee...
49 86106417 The furnace continuous steelmaking and the continuity of steelmaking production
The existing furnace can smelt pig iron by holding coke and carburizing, but can not directly smelt steel. This invention has following main technique characteristics: using pressed and ...
50 86107932 Charging arrangement for blast furnace
In the charging arrangement for blast furnace, according to the charging flow direction, the runout of material tanks are arranged one by one. Charging flow direction is closed by a coni...
51 86107880 Rapid adjustment method of cinder alkalinity and desulfation for iron-smelting ...
A kind of rapid adjustment method of cinder alkalinity and desulfation for iron-smelting blast furnace is to respectively charge furnaceburden to be adjusted and replenished in the stora...
52 86107778 Equipment for the production of ferrous or nonferrous metals from self-reduced ...
Apparatus for producing ferrous or non-ferrous metals from self-fluxing or not, self-reducing agglomerates or ores, being a shaft furnace, comprising a cylindrical or conical shaft, havin...
53 87100758 Charging equipment for vertical furhace
The present invention relates to the charging equipment of a vertical furnace. In the upper part of the furnace body, basically uniformly mixed granular material is loaded. Under the dis...
54 86108275 Charging apparatus of blast furnaces
In the charging apparatus of a blast furnace, the mouth of a small blast bell bin is set in series with the mouth of a large blast bell bin in the meterial feeding flow line. The two bel...
55 87101937 Method of manufacturing iron
A method for producing iron in an elongated reaction vessel provided with underbath nozzles and top blowing means, in which carbonaceous fuels, iron ore and/or prereduced ore are fed to t...
56 87102252 Fusion reducion of iron ore
A method for the melt reduction of iron ores, in which the iron oxide is reduced substantially in the liquid state and the energy required for the heat balance of the process is generated...
57 87102144 Process and apparatus for directly reducing iron to produce heat
A method and an apparatus for the gaseous reduction of particulate iron ores is disclosed, wherein the reduced ore, commonly called DRI (Direct Reduced Iron) or sponge iron, is treated in...
58 87102333 One-step steelmaking process
This invention is an improved steelmaking process. It uses integral block burden and coal instead of the bulk burden and coke respectively, so during smelting process, the contradiction ...
59 87102213 Method for producing thermal sponge iron
A method for the direct gaseous reduction of iron ore to sponge iron at an elevated temperature suitable for hot briquetting, wherein a hot reducing gas is circulated upwardly through a d...
60 87103111 Sponge iron smelting technique and furnace type
This invention belongs to a smelting technique of sponge iron using direct-reduction method, including a new technology and a new furnace type. In the invention, by the upper and lower b...
61 87103786 Method for mfg. chromium-bearing pig iron
A method for manufacturing a chromium-bearing pig iron (19) comprises the steps of charging cold bond pellets, iron ore (10) and coke lumps (11) into a blast furnace (13) from above and b...
62 87103627 Method for controlling operation of blast furnace
A method for controlling heat conditions in a blast furnace wherein the heat conditions are inferred and judged in comparison of data output from sensor means provided for the blast furna...
63 87103633 Method for controlling operation of blast furnace
a method for operating a blast furnace by inferring the operating conditions in the blast furnace, on the basis of data supplied from sensors (11) set in the blast furnace and also on the...
64 87103881 Method for mfg. steel through smelting reduction
This invention relates to a method for the production of molten steel. It features that iron ore and coal are continuously added into the molten metal, whose carbon content is equal to o...
65 87105050 Blast furnace smelting method for rich manganese slag
This invention relates to a process for enriching manganese slags in blast furnace. In this process the existing processing conditions for enriching manganese slags in blast furnace is r...
66 87106305 Process of reducing fine-grained iron-containing material by means of solid car...
Iron oxide and solid carbonaceous reducing agent are charged into a first expanded fluidized bed, which is supplied with an oxygen-containing fluidizing gas. The gas residence time select...
67 87104498 Device for closing top central opening of vessel, and its application to storag...
This invention relates to a device for closing a top central opening of a vessel, and its application to a storage hopper in a shaft furnace charging installation, which device comprising...
68 87106514 Method for prodn. of ferrocarbon intermediate product for use in steel prodn.
The present method and furnace stipulate the following requirements: firstly the melt is led into melting bath, the cross-section of which should be rectangular-shaped. The gas containin...
69 87106397 Distributing process of high mixture ratio pellet for bell type-blast furnace
This invention relates to smelting technology of blast furnace. The invention discloses a type of distributing process which can make the ore/coke ratio along the edge zone of the furnac...
70 87101376 Fe, Mn composite briquette ore and its application in blast furnace iron-smelti...
The compound ferromanganese pellet is produced by compounding concentrated iron ore powder, manganese ore powder, additive, and moistening agent. When used in smelting pig iron with high...
71 87107931 Operating gear for measuring valve
A metering valve comprised of two rotary registers are each provided with cutouts which are symmetrical in relation to the axis of the central opening defined by the movement of the regis...
72 87105969 Process for operating blast furnaces
A method for operating a blast furnace, comprising the steps: charging iron ores and cokes through a furance top into the blast furnace; blowing in gas containing 40vol.% or more oxygen t...
73 87101175 Production of clean spongy iron in shaft furnace by reducing iron scale with co...
The invention is related to improved reducing shaftfurnace and new technique in which the iron scale or other iron powder is reduced with coke powder to producing clean spongy iron, the ...
74 87108012 Process and arrangement for gaining electric energy in addition to producing mo...
The invetion is to gain electric energy in addition to producing molten pig iron, from lumpy iron ore and solid fuels, by using a direct reduction zone for the reduction of the iron ore t...
75 88100068 Tuyere of blast furnace
A tuyere for a blast furnace comprises a water-cooled tuyere and a burner, fitted inside the water-cooled tuyere. The burner is composed of an inner pipe, an intermediate pipe and an oute...
76 87105991 Blast furnace
A blast furnace comprising: a blast furnace body; tuyeres set in a lower part of the blast furnace body through which tuyeres gas or 40 vol.% or more oxygen is blown in; and blow-in inlet...
77 87101210 Direct smelting of steel from iron ore
The ore concentrate is made into briquets with non coking coal and soluent, but without any kind of reduction treatment. In modern steel furnaces, these briquets are smelted to obtain mo...
78 88100874 Apparatus for interchanging tapping spout of shaft furnace
A device for changing tap runners in shaft furnaces includes tap runners which have linings subject to wear and therefore such runners must be repaired regularly. Transport of the runner ...
79 88105873 Assembling and disassembling device for bell-less charge-distributing chute on ...
The said assembling and disassembling device consists of guide way, a base, a linkage, and a driving unit. The base is mounted on the guide way for moving back and forth. The linkage and...
80 88101431 Iion-smelting process of comprehensive using leach slag with V, Cr
The present invention relates to the treatment of solid waste, esp. to the treatment vanadium and chromium-leaching tailings, which are exhausted during the production of metal chromium,...
81 88100902 Charging and distributing device at the top of a blast furnace
This is a charging and distributing device at the top of a blast furnace, it belongs to blast furnace equipment. It consists of such parts as small receiving hopper, upper cut-off valve,...
82 88101562 Feed hopper for loading installation of shaft furnace
The hopper comprises a cylindrical side wall supported by an annular rolling ring so as to be rotatable about its vertical axis, and a funnel shaped bottom with a central outflow orifice ...
83 88101374 Method and apparatus for correction of falling passageway of charging installat...
The process is intended to compensate for the random movements and inclinations of a loading installation of a shaft furnace having a storage lock chamber which is carried by a framework ...
84 88101375 Roller-track device for rotary hopper
The rolling track comprises a series of rollers which are supported by a fixed reinforcement and on which travels the circular pedestal of the hopper. This circular pedestal is equipped w...
85 88101376 Apparatus for controlling hydraulic jacks fixed to slewing hopper
The apparatus comprises a hydraulic unit mounted directly on the wall of the bottom of a rotary hopper and supplying hydraulic fluid to each of the jacks mounted on the hopper wall. This ...
86 88101378 Supporting framework for loading installation of shaft furnace
The rice busk or sawdust is pressed or died and put in a furnace. Temperature is raised and cores of rice busk or sawdust is carbonized. So charcoal is produced.
87 88101608 Driving device for openning and dosing bib
A valve actuating device for a hopper is comprised of two spherical shaped shutters or registers which pivot about common suspension axles. Each of the registers is carried by two pairs o...
88 88101583 Multi-ring loading chute and method of controlling feed distribution
This invention concerns a new type of loading chute for charging a blast furnace without the bell structure. The loading chute, being rectangular in cross section, has an additional bias...
89 88101584 Method and equipment for water cooling and water seal of feed distributor of th...
The water-cooled and water-sealed feed distributor of the blast furnace uses a water-cooled transmission case, which operates on the principle of self-balancing of the furnace gas pressu...
90 88105237 Tuyere for reducing low temp. dull region between blast furnace shaft and tuyer...
The present invention discloses a newly designed welded tuyere of helix type which can be installed side by side with the original tuyere so as to reduce the dull region of low temp. bet...
91 88102490 Surface treating method for tuyere or slag escape of balst furnace
A method is disclosed for treating surface of wind hole or slags-discharging opening of blast furnace. By diffusing several metals in one step, the surfaces of parts to be treated, are f...
92 88102917 Shock-wave controlling constant input-air tuyere
The present invention relates to a tuyere for blast furnace smelting or shaft furnace producing, especially a tuyere making use of shock-wave for the self-control of making input air to ...
93 88102344 Pouring refractories for tapping spout of blast furnace
In this invention pouring refractories for tapping spout has been made from brown corundum as major material properly mixed with silicon-carbide carbonaceous material, clay alumina cemen...
94 88104282 Method for smelting molten iron directly from powdered coal and iron ore
The apparatus used by this method is mainly composed of horizontal or vertical forehearth, vertical after-hearth, small bottom vehicle of after-hearth, preheater and heat exchanger. The ...
95 88103135 Cold-concreted pellets used directly for steel-and-iron-smelting
The present invention belongs to the field of iron and steel industry. Iron concentrate, non-coking coal and grog are used to produce cold-concreted pellets without passing through high-...
96 88104775 Hot-blast furnace blast chamber with air delivery apparatus
In this invention, the airflow decentral equipment arranged at different positions in blast room (that is, the space under the grates of checker chamber in blast furnace hot blast stove)...
97 88104767 Process for utilizing rich iron but poor manganese ore
This invention relates to a new technology for the application of high-Fe lean-Mn ore with reduction smelting method. Its main features are as floows: it uses the Mn-lean ore with very l...
98 88104766 Comprehensive utilization of Cr dregs by detoxicated melting Cr dregs
The present invention refers to a method of detoxication and comprehensive utilization of high temp. smelting Cr slag. Sintered toxic Cr slag from chrominum salt production is used as bl...
99 88107923 Control method for lowering temp. of blast-furnace gas
This control method for lowering the temp. of blast-furnace gas is especially suitable for dry-type cloth envelop dust collection of blast-furnace gas. In this invention, the entrance of...
100 88107616 Coal dust blasting automatic controlling device for blast-furnace
The present invention is composed of a voltage stabilized source, an electronic balance, a temp. transdurcer, a primary regulator, a lower furnace pressure transducer, a secondary regula...
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