DE1408841B2 - Device for generating a solid particle-gas suspension to be introduced into a metal melt - Google Patents
Device for generating a solid particle-gas suspension to be introduced into a metal meltInfo
- Publication number
- DE1408841B2 DE1408841B2 DE19601408841 DE1408841A DE1408841B2 DE 1408841 B2 DE1408841 B2 DE 1408841B2 DE 19601408841 DE19601408841 DE 19601408841 DE 1408841 A DE1408841 A DE 1408841A DE 1408841 B2 DE1408841 B2 DE 1408841B2
- Authority
- DE
- Germany
- Prior art keywords
- suspension
- solid particle
- chamber
- gas
- generating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5294—General arrangement or layout of the electric melt shop
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0037—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 by injecting powdered material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Description
1 4UÖ Ö4i1 4UÖ Ö4i
Die Erfindung bezieht sich auf eine Vorrichtung zur Erzeugung einer in eine Metallschmelze einzuführenden FeststofEteilchen-Gas-Suspension, mit einem in einer Mischkammer befindlichen Einblaskopf, dem die Feststoffteilchen von einem Behälter aus zugeführt werden, und mit einer der Mischkammer nachgeordneten Suspensionskammer.The invention relates to a device for generating a to be introduced into a metal melt Solid particle gas suspension, with an injection head located in a mixing chamber, to which the solid particles are supplied from a container, and with one of the mixing chambers downstream suspension chamber.
Eine solche Vorrichtung ist bekannt. Hierbei dient die Suspensionskammer der verbesserten Durchmischung von Feststoffteilchen und Gas. Andererseits bildet die Suspensionskammer jedoch ein um so größeres Strömungshindernis für die Feststoffteilchen-Gas-Suspension, je stärker sie diese durchmischt. Daher wird bei der bekannten Vorrichtung für die Suspensionskammer eine Düsenform oder eine sich kegelförmig erweiternde Form gewählt, die nur ein Kompromiß aus den Forderungen nach guter Durchmischung und geringem Strömungswiderstand ist.Such a device is known. Here, the suspension chamber is used for the improved Mixing of solid particles and gas. On the other hand, however, forms the suspension chamber the greater the obstacle to the flow of the solid particle-gas suspension, the stronger it is mixed. Therefore, in the known apparatus, the suspension chamber becomes a nozzle shape or a conically widening shape was chosen, which is only a compromise between the requirements after thorough mixing and low flow resistance.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Erzeugung einer in eine Metallschmelze einzuführenden Feststoffteilchen-Gas-Suspension so auszubilden, daß zur Erreichung einer hohen Arbeitsgeschwindigkeit die Suspension unter voller Aufrechterhaltung ihrer Gleichmäßigkeit mit hoher Geschwindigkeit aus der Suspensionskammer abbefördert wird.The invention is based on the object of a device for generating a molten metal to be introduced solid particles-gas suspension in such a way that to achieve a high working speed with the suspension while fully maintaining its uniformity is conveyed away from the suspension chamber at high speed.
Die Aufgabe wird gemäß der Erfindung bei einer Vorrichtung der eingangs genannten Art dadurch gelöst, daß sich an die Suspensionskammer ein Druckgasinjektor zur beschleunigten Abgabe der Feststoffteilchen-Gas-Suspension an die Förderleitung anschließt.The object is achieved according to the invention with a device of the type mentioned at the beginning solved that a pressurized gas injector for the accelerated delivery of the suspension chamber Solid particle gas suspension connects to the delivery line.
Bei der neuen Vorrichtung wird mittels des Druckgasinjektors eine nachträgliche Beschleunigung der Feststoffteilchen-Gas-Suspension erzielt, die es gestattet, der Suspensionskammer eine erhöhte Arbeitsgeschwindigkeit zu vermitteln. Weiter kann die Suspensionskammer gegenüber den seitherigen Ausführungen eine strömungsungünstigere, dabei aber hinsichtlich der Verwirbelung und Durchmischung der Feststoffteilchen-Gas-Suspension günstigere Raumform haben. Die durch das Zusammenwirken der Suspensionskammer mit dem Druckgasinjektor verbesserte gleichmäßige und schnelle Abführung der Feststoffteilchen-Gas-Suspension erlaubt es auch, die Feststoffteilchen aus dem Behälter der Mischkammer in einem relativ kompakten Strom zuzuführen, während seither vorzugsweise in dem Behälter ein Fließbett der nachzuführenden Feststoffteilchen aufrechterhalten wurde, was mit erheblichem Aufwand verbunden ist.With the new device, a subsequent acceleration is achieved by means of the pressurized gas injector the solid particle-gas suspension achieved, which allows the suspension chamber an increased To convey work speed. The suspension chamber can also be compared to the previous Versions less favorable to the flow, but in terms of turbulence and mixing the solid particle-gas suspension have a more favorable spatial shape. The through cooperation the suspension chamber with the pressurized gas injector improved even and fast Discharge of the particulate matter gas suspension also allows the particulate matter to be removed from the container to be supplied to the mixing chamber in a relatively compact stream, while since then preferably a fluidized bed of the solid particles to be fed in was maintained in the container, which with considerable effort is involved.
Die Erfindung wird im folgenden an Hand der Zeichnung näher erläutert, in der ein Ausführungsbeispiel dargestellt ist. The invention is explained in more detail below with reference to the drawing, in which an exemplary embodiment is shown.
Aus einem nur ausschnittsweise dargestellten Behälter 2 mit trichterförmigem Boden wird einer Mischkammer 24 ein Strom von Feststoffteilchen zugeführt, dessen Menge mittels eines an einem Handrad 26 verstellbaren Ventiltellers 25 regulierbar ist. In der Mischkammer 24 befindet sich ein Einblaskopf 29, der Teil eines an die Leitung 38 angeschlossenen, abnehmbaren Injektors 28 ist, dem ein Gas — Preßluft oder ein inertes Gas — mit regelbarem Druck zugeführt wird. Bevor die Feststoffteilchen von dem Gasstrom des Einblaskopfs 29 mitgerissen werden, werden sie an einem Ablenkblech 27, das unter 45° geneigte Bohrungen aufweist, bereits geringfügig in die Förderrichtung umgelenkt.A container 2 with a funnel-shaped bottom, shown only in part, becomes one A flow of solid particles is supplied to the mixing chamber 24, the amount of which can be regulated by means of a valve disk 25 which can be adjusted on a handwheel 26. In the mixing chamber 24 there is an injection head 29, which is part of a pipe 38 connected to removable injector 28 is to which a gas - compressed air or an inert gas - with adjustable Pressure is applied. Before the solid particles are entrained by the gas flow from the injection head 29 are, they are on a baffle 27, which has holes inclined at 45 °, already slightly deflected in the conveying direction.
An die Mischkammer 24 schließt sich eine Suspensionskammer 30 an, in der die noch inhomogene Mischung zu einer homogenen Feststoffteilchen-Gas-Suspension vermischt wird.The mixing chamber 24 is followed by a suspension chamber 30 in which the still inhomogeneous Mixture is mixed into a homogeneous solid particle gas suspension.
An die Suspensionskammer 30 schließt sich ein aus einer Zerstäuberkammer 31 und einer Gaszuleitung 32 bestehender Druckgasinjektor an, der die Feststoffteilchen-Gas-Suspension gegenüber deren Geschwindigkeit in der Mischkammer 24 stark beschleunigt und einen in der Suspensionskammer 30 eingetretenen Druckabfall ausgleicht. Aus der Zerstäuberkammer 31 gelangt die Feststoffteilchen-Gas-Suspension mit hoher Geschwindigkeit in eine Förderleitung 34, mittels derer sie einer Metallschmelze zugeführt wird.The suspension chamber 30 is followed by a pressure gas injector consisting of an atomizer chamber 31 and a gas supply line 32, which the Solid particle-gas suspension is greatly accelerated compared to its speed in the mixing chamber 24 and compensates for a pressure drop that has occurred in the suspension chamber 30. The solid particle-gas suspension passes from the atomizer chamber 31 at high speed in a conveying line 34, by means of which they a molten metal is fed.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR818216A FR1250107A (en) | 1960-02-11 | 1960-02-11 | Process for producing metals and alloys such as steel and cast iron, and device for implementing this process |
Publications (2)
Publication Number | Publication Date |
---|---|
DE1408841A1 DE1408841A1 (en) | 1968-11-28 |
DE1408841B2 true DE1408841B2 (en) | 1970-07-16 |
Family
ID=8725072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19601408841 Pending DE1408841B2 (en) | 1960-02-11 | 1960-11-26 | Device for generating a solid particle-gas suspension to be introduced into a metal melt |
Country Status (6)
Country | Link |
---|---|
US (1) | US3194539A (en) |
BE (1) | BE599296A (en) |
DE (1) | DE1408841B2 (en) |
ES (1) | ES261739A1 (en) |
FR (1) | FR1250107A (en) |
GB (1) | GB970990A (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1232052B (en) * | 1965-02-19 | 1967-01-05 | Roger Johannus Henricus Clercx | Method and device for increasing the flow capacity of mortar or concrete masses |
US3862746A (en) * | 1971-05-10 | 1975-01-28 | Arvel O Franz | Slurry unloading of bulk alkaline earth metal carbonates |
JPS5015737B2 (en) * | 1971-09-27 | 1975-06-07 | ||
FR2186307B1 (en) * | 1972-05-29 | 1974-12-27 | Gerard Richard | |
US3782695A (en) * | 1972-07-10 | 1974-01-01 | Union Oil Co | Apparatus and method for dispersing solid particles in a liquid |
US3893655A (en) * | 1972-07-10 | 1975-07-08 | Union Oil Co | Apparatus and method for dispersing solid particles in a liquid |
US3891196A (en) * | 1974-01-21 | 1975-06-24 | Thyssen Niederrhein Ag | Apparatus for treating a melt |
US4106111A (en) * | 1977-04-07 | 1978-08-08 | Rose Leo J | Improved concrete making and transmission |
EP0015335A1 (en) * | 1979-03-12 | 1980-09-17 | Duport Steels Limited | Method of and apparatus for making additions of particles to molten metal |
WO1981002165A1 (en) * | 1980-01-30 | 1981-08-06 | Sibirsk Metall Inst | Device for treatment of molten metal with gases and powder-like materials |
USRE31676E (en) | 1982-09-29 | 1984-09-18 | Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG | Method and apparatus for dispensing a fluidizable solid from a pressure vessel |
US5603566A (en) * | 1995-11-21 | 1997-02-18 | Abb Flexible Automation Inc. | Powder hopper with internal air assist |
US5762416A (en) * | 1996-12-27 | 1998-06-09 | Lesire; James R. | Mixing unit |
US5772319A (en) * | 1997-02-12 | 1998-06-30 | Pemberton; Paul A. | Material loader for injection molding press |
DE19755393A1 (en) * | 1997-12-12 | 1999-06-17 | Krupp Polysius Ag | Method and plant for blowing at least one additive into a molten metal |
US6854874B2 (en) * | 2002-10-29 | 2005-02-15 | Halliburton Energy Services, Inc. | Gel hydration system |
US20040228207A1 (en) * | 2003-05-16 | 2004-11-18 | Mcneff Larry C. | System and method for applying an additive to a material stream |
CA2539946A1 (en) * | 2005-03-24 | 2006-09-24 | Jade Oilfield Service Ltd. O/A Canyon Technical Services | A method and apparatus for transferring materials into a fluid stream |
US9169062B2 (en) * | 2011-06-30 | 2015-10-27 | Kellogg Brown & Root Llc | Lock hopper mass flow arrangement |
US9302857B2 (en) | 2012-04-25 | 2016-04-05 | Nordson Corporation | Pneumatic solids transfer pump |
US9265190B2 (en) | 2013-01-09 | 2016-02-23 | Cnh Industrial America Llc | Seed inductor box for an agricultural implement having multiple air paths |
CN104325556B (en) * | 2014-10-21 | 2016-09-28 | 重庆市住宏节能建材有限公司 | A kind of inorganic heat insulation material mixing tank |
USD882186S1 (en) * | 2018-12-18 | 2020-04-21 | Zaxe Technologies Inc. | Automatic animal feeder |
CN112193313A (en) * | 2020-11-09 | 2021-01-08 | 仇帅康 | Charging vehicle for non-ferrous metal smelting |
US20230200291A1 (en) * | 2021-12-29 | 2023-06-29 | Cnh Industrial Canada, Ltd. | System and method for controlling fan operation of an agricultural implement |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734782A (en) * | 1956-02-14 | Pneumatic conveyors | ||
BE541001A (en) * | ||||
FR691139A (en) * | 1929-05-10 | 1930-10-01 | Neu Sa | Further training in pneumatic transport devices |
US1971852A (en) * | 1931-06-03 | 1934-08-28 | Firm G Polysius Ag | Process for stirring up farinaceous materials in receptacles of any kind by compressed air, compressed gas, or the like |
US2423801A (en) * | 1944-12-05 | 1947-07-08 | John H Poe | Apparatus for mixing drilling mud |
DE872208C (en) * | 1945-01-27 | 1953-03-30 | Gustav Friedrich Gerdts | Device for noise dampening during the desludging of the ship's boiler |
US2549033A (en) * | 1946-09-11 | 1951-04-17 | Air Reduction | Apparatus for feeding powdered material |
US2593505A (en) * | 1948-04-10 | 1952-04-22 | Hydrocarbon Research Inc | Metal refining process |
US2821439A (en) * | 1955-01-20 | 1958-01-28 | Air Reduction | Pneumatic powder feeder |
US2906616A (en) * | 1955-04-28 | 1959-09-29 | Siderurgie Fse Inst Rech | Method for desulfurizing molten metal and in particular liquid pig iron |
US2891782A (en) * | 1956-02-10 | 1959-06-23 | Air Reduction | Concentric-hopper batch-feeder |
FR1181492A (en) * | 1957-08-16 | 1959-06-16 | foam concentrate for the pneumatic transport of powdery materials | |
FR1031504A (en) * | 1957-09-09 | 1953-06-24 | Air Liquide | Device for blowing gas into a mass of molten metal |
US3019058A (en) * | 1958-09-22 | 1962-01-30 | Air Placement Equipment Compan | Air control structure for aggregate handling machines |
-
1960
- 1960-02-11 FR FR818216A patent/FR1250107A/en not_active Expired
- 1960-10-18 ES ES0261739A patent/ES261739A1/en not_active Expired
- 1960-11-26 DE DE19601408841 patent/DE1408841B2/en active Pending
-
1961
- 1961-01-19 BE BE599296A patent/BE599296A/en unknown
- 1961-02-01 GB GB380361A patent/GB970990A/en not_active Expired
- 1961-02-10 US US8834261 patent/US3194539A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB970990A (en) | 1964-09-23 |
FR1250107A (en) | 1961-01-06 |
BE599296A (en) | 1961-05-16 |
DE1408841A1 (en) | 1968-11-28 |
ES261739A1 (en) | 1961-01-01 |
US3194539A (en) | 1965-07-13 |
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