CN113251805A

CN113251805A - Special rotary metallurgical furnace blowing operation process for metal regeneration

Info

Publication number: CN113251805A
Application number: CN202110406796.0A
Authority: CN
Inventors: 万林应; 王二虎; 刘涛; 陈洋洋; 王超
Original assignee: Tongling Qiujing Machinery Co ltd
Current assignee: Tongling Qiujing Machinery Co ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-08-13

Abstract

The invention discloses a special rotary metallurgical furnace blowing operation process for metal regeneration, which comprises the steps of adding metallurgical raw materials and auxiliary materials into a furnace body through a feeding hole, sealing a cover plate covering the feeding hole, heating the furnace body through a combustion hole, melting the furnace body, burying an air inlet into a molten material after the furnace body rotates, and blowing oxygen-mixed gas into the furnace body through the air inlet to enable the molten material to generate an oxidation-reduction reaction for blowing operation. According to the special rotary metallurgical furnace converting operation process for metal regeneration, the cover body of the furnace cover is formed by the membrane wall, so that the furnace cover is light in weight, the inner wall cannot bear higher weight during metallurgy, feeding is inconvenient, the furnace body is large in load capacity, the sealing performance is good, and the production quality is improved.

Description

Special rotary metallurgical furnace blowing operation process for metal regeneration

Technical Field

The invention relates to the technical field of metal regeneration, in particular to a special rotary metallurgical furnace blowing operation process for metal regeneration.

Background

An industrial furnace for carrying out hot processing treatment on various materials or workpieces in the metallurgical production process. The hot working process is a process characterized by an increase in temperature of a material or a workpiece, and includes, for example, baking, melting, heating, heat treatment, drying, and the like. Most production links of ferrous metallurgy and nonferrous metallurgy are not separated from a furnace. Historically, many innovations in the production process, and the improvement in product yield and quality, have been closely related to the innovation of old metallurgical furnaces and the application of new metallurgical furnaces, and the refractory protective layer at the bottom of a metallurgical furnace is usually built by refractory bricks. The advent of open hearth furnaces has strongly propelled the development of steel production. The energy consumption of the metallurgical industry depends to a great extent on the energy consumption melting of various metallurgical furnaces, and the tank melting is realized by injecting air, oxygen-enriched air, reducing agent and fuel into a molten pool through a spray gun arranged on the side wall of a furnace body, and injecting side-blown gas jet into the molten pool and rapidly stirring the molten pool so as to accelerate the processes of heat transfer, mass transfer and chemical reaction in the molten pool.

Patent document CN101762157B discloses a metallurgical furnace comprising: the furnace body is provided with an opening at the top end; and the furnace cover is arranged at the top end of the furnace body so as to seal the top end opening of the furnace body, wherein the furnace cover is provided with: the device comprises a cover body, a gas inlet, a gas outlet and a feeding port are formed on the cover body respectively, wherein the cover body is composed of a membrane wall; and the refractory material layer is arranged on the inner wall of the cover body. According to the metallurgical furnace of the present invention, the hood body of the furnace mantle is constituted by the membrane wall, and therefore the weight of the furnace mantle is light, so that the inner wall cannot bear a high weight in metallurgy, and charging is inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a special rotary metallurgical furnace blowing operation process for metal regeneration, which solves the problems that the furnace cover body is composed of a membrane wall, so that the furnace cover is light in weight, the inner wall cannot bear higher weight during metallurgy, and the charging is inconvenient.

In order to achieve the purpose, the invention is realized by the following technical scheme: a special rotary metallurgical furnace blowing operation process for metal regeneration comprises the following steps:

adding metallurgical raw materials and auxiliary materials into a furnace body through a feeding hole, sealing a cover plate covering the feeding hole, heating the furnace body through a combustion hole and then melting the materials, burying an air inlet into the melted materials after the furnace body rotates, and blowing oxygen-containing mixed gas into the furnace body through the air inlet to enable the melted materials to generate an oxidation-reduction reaction for blowing operation;

step two, separating the metal from impurities after the reaction, then pouring out the generated slag from a feed inlet, performing charging, slagging and slag discharging operations until the metallurgical furnace reaction is finished, and pouring out all the blown metal from the furnace body;

and step three, discharging the raw materials and the auxiliary materials from the feeding hole, discharging the reaction flue gas from the smoke outlet, aligning the air inlet with the air inlet position, and adjusting the valve of the air inlet so as to control the combustion temperature.

As a further scheme of the invention: the fuel added into the combustion port is fuel gas and natural gasoline medium for combustion, the heat of combustion is 1400-1600 ℃, and the metal melting temperature is 1200 ℃.

As a further scheme of the invention: the maximum rotation angle of the air inlet is 270 degrees.

As a further scheme of the invention: the left end fixedly connected with air inlet equipment of furnace body, air inlet equipment includes flow control wind gap, first tuber pipe and second tuber pipe pass through lagging fixed connection, feed inlet and outlet flue set up in the top of furnace body, the air intake sets up in the bottom of furnace body, the burner port sets up in the one side of keeping away from the furnace body.

As a further scheme of the invention: the lower part of the furnace body is fixedly connected with a first base and a second base, and the left side of the first base is fixedly connected with an equipment driving regulator.

As a further scheme of the invention: the inner chamber fixedly connected with of furnace body builds the brick, it is provided with a plurality ofly to build the brick, a plurality ofly builds the inner chamber evenly distributed at the furnace body.

As a further scheme of the invention: the top end of the furnace body is covered with a furnace rear air hole machine operating platform.

Advantageous effects

The invention provides a special rotary metallurgical furnace blowing operation process for metal regeneration. Compared with the prior art, the method has the following beneficial effects:

1. a process for reclaiming metal includes such steps as feeding raw metallurgical material and auxiliary material into furnace body, sealing the cover plate of feeding inlet, heating by burner, smelting, rotating furnace body, burying air inlet in the molten material, blowing oxygen-mixed gas in the furnace body, oxidizing-reducing reaction of molten material, separating metal from impurities, pouring out the generated slags from feeding inlet, charging, slagging and discharging slags until the reaction is finished, pouring out all the slags out of furnace body, discharging the metal and slags from feeding inlet, discharging the reaction fume from discharging outlet, aligning the air inlet to air inlet position, and regulating the valve of air inlet to control combustion temp The metallurgical furnace combines the traditional converter blowing and the anode furnace refining into one metallurgical furnace blowing, combines the two furnace processes into one, and the cover body of the existing furnace cover is formed by a membrane wall, so the weight of the furnace cover is light, the inner wall cannot bear higher weight during metallurgy, and the feeding is inconvenient.

2. The blowing process for metal regeneration special-purpose rotary metallurgical furnace is characterized by that the fuel added by combustion mouth is gas and natural gasoline medium, the heat quantity of combustion is 1400-1600 deg.C, metal melting temp. is 1200 deg.C, and the fuel with high heat value can be used to raise reaction efficiency, reduce waste of fuel and reduce production cost.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a top view of a structural joint of the present invention;

fig. 3 is a front view of the structural connection of the present invention.

In the figure: 1. a feed inlet; 2. a furnace body; 3. an air inlet; 4. a smoke outlet; 5. a burner port; 6. an air intake device; 7. a first base; 8. a second base; 9. a device driving regulator; 10. a furnace back tuyere machine operating platform; 61. a flow control tuyere; 62. a first air duct; 63. and a second air duct.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a special rotary metallurgical furnace blowing operation process for metal regeneration comprises the following steps:

discharging metal and waste slag from the feed inlet, discharging reaction flue gas from the smoke outlet, aligning the air inlet with the air inlet position, and adjusting the valve of the air inlet so as to control the combustion temperature;

the fuel added at the combustion port 5 is fuel gas and natural gasoline medium for combustion, the heat of combustion is 1400-1600 ℃, the metal melting temperature is 1200 ℃, the metallurgical furnace is mainly used for cold charge melting, converting oxidation, slagging operation and the like, the maximum rotation angle of the air inlet is 270 degrees, the metallurgical furnace combines the traditional converter converting and anode furnace refining into one metallurgical furnace converting, the two furnace processes are combined into one, the left end of the furnace body 2 is fixedly connected with an air inlet device 6, the air inlet device 6 comprises a flow control air port 61, a first air pipe 62 and a second air pipe 63, the first air pipe 62 and the second air pipe 63 are fixedly connected through a sleeve plate, the feed port 1 and the smoke outlet 4 are arranged at the top of the furnace body 2, the air inlet 3 is arranged at the bottom of the furnace body 2, the combustion port 5 is arranged at one side far away from the furnace body 2, the first base 7 and the second base 8 are fixedly connected below the furnace body 2, the left side fixedly connected with equipment modulator 9 of first base 7, the inner chamber fixedly connected with of furnace body 2 lays bricks, and it is provided with a plurality ofly to lay bricks, and a plurality of inner chamber evenly distributed of laying bricks at furnace body 2, and the top cover of furnace body 2 is equipped with stove back eye machine operation panel 10.

When the invention works, metallurgical raw materials and auxiliary materials are added into the furnace body 2 through the feed inlet 1, the cover plate covering the feed inlet is sealed, the materials are melted after being heated through the combustion port 5, the furnace body 2 is rotated to embed the air inlet 3 into the melted materials, blowing oxygen-containing gas through the air inlet 3 to make the molten material produce oxidation-reduction reaction to make blowing operation, separating metal from impurity after reaction, then the produced slag is poured out from the feed inlet 1, after a plurality of times of charging, slagging and slag discharging operations until the metallurgical furnace reaches the maximum processing capacity, the blown metal is poured out of the furnace body 2, the metal and the waste slag are discharged from the feed inlet 1, the reaction smoke is discharged from the smoke outlet 4, according to the process requirements, the position of the air inlet 3 is arranged according to the requirements of the level and the air inlet angle, and the valve of the air inlet 3 is adjusted so as to control the combustion temperature.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A special rotary metallurgical furnace converting operation process for metal regeneration is characterized in that: the method comprises the following steps:

adding metallurgical raw materials and auxiliary materials into a furnace body (2) through a feeding hole (1), sealing a cover plate covering the feeding hole, heating the furnace body through a combustion hole (5) and then melting the materials, burying an air inlet (3) into the molten materials after the furnace body (2) rotates, and blowing oxygen-mixed gas into the molten materials through the air inlet (3) to enable the molten materials to generate an oxidation-reduction reaction for blowing operation;

step two, separating the metal from impurities after the reaction, then pouring the generated slag out of a feed inlet (1), feeding, slagging and slagging until the metallurgical furnace reaction is finished, and pouring all the blown metal out of a furnace body (2);

and step three, discharging metal and impurities (waste residues) from the feed inlet (1), discharging reaction flue gas from the smoke outlet (4), aligning the air inlet (3) to the air inlet position, and adjusting the valve of the air inlet (3) so as to control the combustion temperature.

2. The process of claim 1, wherein the process comprises the following steps: the fuel added into the combustion port (5) is fuel gas and natural gasoline medium for combustion, the heat of combustion is 1400-1600 ℃, and the metal melting temperature is 1200 ℃.

3. The process of claim 1, wherein the process comprises the following steps: the maximum rotation angle of the air inlet (3) is 270 degrees.

4. The process of claim 1, wherein the process comprises the following steps: the left end fixedly connected with air inlet equipment (6) of furnace body (2), air inlet equipment (6) include flow control wind gap (61), first tuber pipe (62) and second tuber pipe (63) are through lagging fixed connection, feed inlet (1) and outlet flue (4) set up in the top of furnace body (2), air intake (3) set up in furnace body (2) bottom, burner port (5) set up in the one side of keeping away from furnace body (2).

5. The process of claim 1, wherein the process comprises the following steps: the furnace body (2) is fixedly connected with a first base (7) and a second base (8) below, and the left side of the first base (7) is fixedly connected with an equipment driving regulator (9).

6. The process of claim 1, wherein the process comprises the following steps: the inner chamber fixedly connected with of furnace body (2) builds bricks, it is provided with a plurality ofly to build bricks, a plurality ofly builds bricks at the inner chamber evenly distributed of furnace body (2).

7. The process of claim 1, wherein the process comprises the following steps: the top end cover of the furnace body (2) is provided with a furnace rear air hole machine operating platform (10).