JPH04120597U - metal melting furnace - Google Patents

Abstract

(57) [Summary] [Purpose] In melting furnaces used in the light metal casting industry, melting residue reacts with the furnace wall refractories to form a solid solution, which swells and deforms the furnace body, significantly shortening its service life. do. In order to prevent this, the present invention aims to simplify cleaning and reduce the amount of fuel used by uniformly dissolving and increasing the dissolution rate. [Structure] A plurality of gas flame jetting burners 15 arranged according to the width of the melting chamber spray gas into the inclined melting chamber 12 in the form of a passage with a large width to uniformly and quickly melt the metal lump to be melted. The molten metal flows into the molten metal holding chamber 13. In addition, for cleaning that must be done frequently, remove the stopper 16 from the cleaning port, which has a large width, and
Inclined melting chamber 12 with no bend between 1 and the molten metal holding chamber 13
Furnace slag, etc., can be efficiently applied to the bottom surface 12a, making cleaning easier and reducing fuel costs.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a metal melting furnace, and increases the angle and area exposed to the melting gas flame. In addition to uniformly dissolving the molten metal and speeding up the dissolution rate, it also eliminates curved parts of the molten metal flow. This eliminates the need for frequent cleaning operations.

0002

[Conventional technology]

Metal melting furnaces, especially light metal melting furnaces such as aluminum and its alloys, are used for iron casting metals. It is used most frequently after melting, and there are a wide variety of furnace shapes and functions. has been done.

0003

[Problem that the idea aims to solve]

Metal melting furnaces, especially those used in light metal foundries such as aluminum alloys, are If melted residue remains, it reacts with the furnace wall refractories to form a solid solution, which swells and causes the furnace body to deteriorate. This can cause deformation and significantly shorten the useful life of the furnace, so to prevent this, frequent cleaning is required. In addition to simplifying the process, it also reduces the amount of fuel used due to uniform dissolution and faster dissolution rate. It becomes a challenge. The purpose of this invention is to solve the above problems. Ru.

0004

[Means to solve the problem]

The metal melting furnace of the present invention has a metal lump injection hole to be melted and a metal injected into the injection hole. A channel with a large width and no bends that allows the lump of molten metal to flow into the molten metal holding chamber. and an inclined melting chamber provided at the boundary between the input hole and the inclined melting chamber. A cleaning port with a closing plug and having a width substantially the same as the inclined bottom surface facing the bottom surface, and a cleaning port with a closing plug facing the inclined bottom surface, and The inclination angle is opposite to the inclination angle, and the dissolution chamber is arranged according to the width of the dissolution chamber. It consists of a plurality of gas flame jetting burners and a molten metal pumping hole that opens into the holding chamber. It is characterized by the following, and meets the above-mentioned purpose.

[0005]

[Effect]

The present invention is arranged in a passage-shaped inclined melting chamber 12 with a large width in accordance with the width of the melting chamber. A plurality of gas flame jetting burners 15 arranged in a row spray gas to uniformly and uniformly melt the metal mass to be melted. The molten metal melts quickly and flows into the molten metal holding chamber 13. It must also be done often For cleaning, remove the stopper 16 from the cleaning port, which has a large width, and Bottom surface 12 of inclined melting chamber 12 with no bend between metal lump injection hole 11 and molten metal holding chamber 13 Furnace slag, etc., such as a, can be applied efficiently, making cleaning easier and reducing fuel costs. can be fulfilled.

[0006]

【Example】

The accompanying drawings illustrate an embodiment of the present invention; FIG. 1 is a partially cutaway plan view, and FIG. 2 is a partially cutaway plan view. 1. FIG. 3 is a side view cut along the dashed-two dotted line in FIG. 1.

[0007] In the figure, 1 is the melting metal furnace body of this embodiment, and a horizontally long and low chimney-shaped part 2 A horizontally elongated metal lump charging hole 11 is provided at the bottom of the hole 11. It is in the shape of a passage with a large width, and has a tilted shape that is approximately half the length of the furnace body 1. An oblique melting chamber 12 is formed. The bottom of the inclined dissolution chamber 12 is not bent, and the angle of inclination is 15°. The front and rear are appropriate. The tip edge of the inclined melting chamber 12 is a molten metal holding chamber 13 with a lower bottom. A molten metal pumping hole 14 is provided on the side of the holding chamber.

[0008] The top surface of the molten metal furnace body 1 and the top surface of the inclined melting chamber 12 is the top surface of the bottom surface 12a of the melting chamber. The refractory brick 3 has an inclination angle opposite to the inclination angle, and the above-mentioned is applied to the outer surface of the brick 3. An inclined surface 3a opposite to the inclination angle of the bottom surface 12a is provided on the brick 3, and the bottom surface 1 Multiple gas burners such as bright flame burners that spray a gas flame at the center of the length of 2a A plurality of burner insertion holes 4 into which burner 15 are inserted and fixed are provided. In addition, metal lumps to be melted are added. A closed hole is formed at the boundary between the hole 11 and the inclined melting chamber 12 toward the bottom surface 12a of the inclined melting chamber. A cleaning port 17 with a chain stopper 16 is provided.

[0009] In addition, 18 is the stopper of the molten metal pumping hole 14, and 5 is the top of the molten metal holding chamber 13. On the other hand, a heat retaining burner 1 that maintains the temperature of the molten metal is provided through a burner insertion hole formed in the furnace body 1. Insert and fix 9. The upper surface 1a of the furnace body 1 is made of a removable refractory material, Using a part of the refractory beam 6 that supports the refractory brick 3 from below, the right edge is Multiply by Reference numerals 20 and 20 indicate opening/closing lids fitted into the cleaning openings 7 on both sides of the molten metal holding chamber 13. Ru.

0010 As stated in the section on the function of the invention, this embodiment is superior in terms of economy and time for the metal to be melted. It has excellent properties for easy dissolution and efficient cleaning.

[0011]

[Effect of the idea]

In the present invention, the metal lump introduced into the metal lump to be melted into the hole 11 is placed in a channel type with a large width. Flow into the inclined dissolution chamber 12, and arrange a plurality of pieces according to the width of the inclined dissolution chamber 12. The gas flame jetting burner 15 is provided, and the inclination angle of the bottom surface 12a of the melting chamber 12 is and the inclination angles of a plurality of gas flame jetting burners 15 are opposed to each other. flattened to enable uniform melting of the metal to be melted and to speed up the melting rate. It is rational that fuel consumption can be reduced by A cleaning valve with a closing plug provided at the boundary of the dissolution chamber 12 and directed toward the bottom surface 12a of the inclined dissolution chamber 12 The opening 17 matches the entire width of the inclined dissolution chamber 12 and is curved at the bottom 12a of the inclined dissolution chamber. Since there is no burr, it has the advantage of being able to be cleaned without any dead spots that leave behind metal slag, etc.

[Brief explanation of drawings]

The attached drawings illustrate embodiments of the present invention.

[Fig. 1] Partially cutaway plan view,

[Fig. 2] A side view cut along line AA in Fig. 1;

[Figure 3] Cutaway side view of the dashed-double line portion in Figure 1

[Explanation of symbols]

1 molten metal furnace body, 1a upper surface, 2 chimney-shaped part,
3 fireproof brick, 4 burner insertion hole, 5 burner insertion hole, 6 fireproof beam, 7 cleaning port, 11 metal to be melted hole, 12 inclined melting chamber, 13 molten metal holding chamber, 1
4 molten metal pumping hole, 15 gas burner, 16 closing plug, 17 cleaning port, 18 stopper, 19 heat retention burner, 20 opening/closing lid,

Claims (1)

[Scope of utility model registration request] 1. A metal lump to be melted inlet hole, and an inclined melting chamber in the form of a passage with a large width and no bends, through which the molten metal of the metal ingot introduced into the inlet hole flows into the molten metal holding chamber.
A cleaning port with a stopper provided at the boundary between the input hole and the inclined melting chamber and facing the inclined bottom surface of the inclined melting chamber and having a width substantially the same as the inclined bottom surface, and an inclined angle opposite to the inclined angle of the inclined melting chamber. A metal melting furnace comprising: a plurality of gas flame jetting burners arranged according to the width of the melting chamber; and a molten metal pumping hole opening into the holding chamber.