JPS5989920A - Igniting gas burner for sintering device and the like - Google Patents

Abstract

PURPOSE:To make the combustion uniform in furnace width direction by a method wherein a fuel gas passage and a combustion air passage are adjacently arranged each other, an extension part of at least one passage within those passages is throttled, a mixing chamber is connected with the throttled part. CONSTITUTION:When each passage for fuel gas and combustion air are arranged, combustion air passage 6 are arranged at the both sides of a fuel gas passage 5 located at a central part, then the gas from the central fuel gas passage is burnt with the air from both sides air passages. Throttle parts 5a, 6a are formed at the top part of extended part of one part within the passages 5, 6, further, each throttle parts 5a, 6a are connected with a mixing chamber 7, an adequate mixed gas is produced in the mixing chamber 7, the mixed gas is injected against a raw material layer. Thereby, the uniform burning condition in furnace width direction can be obtained, also the burning control can be performed easily.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention employs a gas burner (9) for ignition, such as a tying gun, to continuously ignite and melt the raw material (7:I, etc.) continuously in the width direction of the raw material layer such as the ore (7:I). The present invention relates to a gas burner that can be used as a furnace and is easy to control.

In general, the raw material layer such as ore is ignited in an ignition furnace for 3 fs during sintering.
1 and then sintered during the transfer n2. In this case, original ′$+
Is the layer t wide in the width direction perpendicular to its movement direction? Therefore, it is important for quality and production to uniformly measure the raw material layer VC in the ignition furnace. Used in ignition furnaces, /
) As shown in Figure 1 (a), (1), and (C), the gas burners are cylindrical burners in large numbers (approximately 10 to 20) arranged in one or several rows in the furnace width direction on the ceiling of the ignition furnace. A type with a Kasbannake arrangement is used. However, the temperature of the raw material layer under each burner surface and between them varies, the raw material surface becomes overmelted under the burner surface, and the combustion residue does not come into direct contact between the burners, so the raw material surface is unignited or unignited. As a result, uniform sintering cannot be carried out, which impedes improvement in the quality of lees and raw y5I:, r1:.

In other words, mx diagram (a) and Vc (b) t- are conventionally 1
The cylindrical burner of 11 has a film thickness of 8t1. Figure 1 (C) is a plan view of the sintered I-Lake ignition furnace.
, immediately after the raw material +(,: the -0 graph of the temperature distribution on the surface.

As shown in the first stage 1(a) and K(b), the pallet 1σ roller of the sintering machine moves continuously in the direction of the arrow, and the raw material is The surface of the soap 3 is ignited δn, ^. Is this ignition car 12 on the furnace width side 1 of the ceiling? Install cylindrical burners 4 (1-1) over 1 or several cylindrical burners, each cylindrical burner 4
・Able to ignite the raw material layer. In this ignition furnace 2, the burners 4 11' are arranged in a distributing manner at regular intervals, so that the flames 4a are injected from the burners 4 at intervals as shown in FIG. 1(C). , the temperature in the furnace width direction Ilj (
The gas distribution (gas distribution) is uniform -T' (but there is a variation in temperature of 1 meter from the top of the material layer (see Fig. 1 (d)).

Furthermore, the vortices below the surface of each burner are quiet, and the temperature is rounded between each burner. For this reason, uneven burning of Vl-9'l:"+L"Z1ψ occurs, which is a problem on quality and /i=gti/).

From this point of view, it is possible to shorten the interval between the burners in the conventional example C1 ignition furnace, or to provide a separate mixing combustion chamber 2'L smaller than the one disclosed in 1985-37685, to achieve a high temperature n.
1. There are nine devices that can be used to eject waste metal uniformly in the width direction of the ignition furnace, but all of these devices require a large amount of money to set up, and in the end, they are difficult to install. It is called "the first stage of operation after the combustion is finished"; it requires preheating of the mixing combustion chamber, and is not suitable as an ignition system for a continuous furnace that operates intermittently. Moreover, it is difficult to keep up with changes in operating conditions, and it has drawbacks such as the loss of energy and the large size of C4 units.

The present invention eliminates the drawbacks of qfL, etc., achieves a uniform combustion condition in the width direction of the furnace, and moreover, the flilJ control is formed in a compact manner. Fuel scum passageway, combustion blast passageway, and intervention force
Vclμr are placed in contact with each other, and at least -ii, 15 extensions of each passage? Squeeze, History, Ren σ
) Connected to the throttle part and provided a mixing chamber, JJ+i, Ikotakura! 1 sign and ding.

The present invention will be explained in detail below.

1, Figure 2 (a), (bJ and (C)r, ?One implementation of the present invention (/) 1)
If it is a congratulation map or a picture map, it is Hini rib m1 diagram 1, and this 1. As shown in FIG. Each passage 5
．． 6 are arranged adjacent to each other. In other words, each passage for fuel gas and combustion air is located on both sides of the medium-heat fuel waste passage 5, as shown in Fig. 2 (a) and (b). All the gust passages 6 are arranged, and the central fuel scum is combusted by the air on both sides. 1, this σ), it is possible to increase the number of passages in each passage in order to improve the combustion temperature. It is essential to install passageway equipment.

Next, in each of the passages 5.6 of ii7< on the side, at least some of the passages have constricted portions 5a, 5a at their tip portions or extension portions of the mechanism. I-forming, and each constriction part 5a, 6
A is connected to a mixing chamber 7, and in the mixing chamber 7, a good mixture (a mixture of fuel gas and combustion air) is injected toward the formation field n, t'L or the raw material layer.

If the fuel gas and combustion air passages are formed parallel to each other as in Qi above, the fuel gas and combustion air flow parallel to each other. Therefore, the mixing depends only on diffusion mixing at the interface between the two, and the mixing is worse. If the mixing deteriorates in this way, the combustion speed becomes slower and the flame flame becomes longer. , Ar is a major drawback in so-called long frames. In this case, it is conceivable that the fuel scum and the combustion air are combined in advance, but if it is a mixture, there is a danger of explosion, etc., and this is not desirable. In this respect, in the present invention, at the end of each passage yi+,' is the aperture capital 5a,
6a or formation is also 1. Because of this, the fuel gas and the combustion gas collide, promoting mixing.

It is preferable to install 7 mixing chambers at the tip of each 9L throttle section 5asba, and when 7 mixing chambers are installed, each throttle section 5a,
6a and phase 1 promote the formation of air-fuel mixture.

In other words, the grilled 5 scraps and the combustion air are from 111 to 100 mm. If you leave the mixing chamber 7 or 1 there, mixing will be promoted. Ru. It is preferable that there are 50 items in this mixing chamber 7.
If it is less than 0 mm, mixing will be insufficient and a stable frame will not be obtained. Practically speaking, it can be made long by about 100g. 1, both 11.1 in mixing chamber 7! 78F at l,
The heat radiation from inside the furnace causes the heating element to be damaged. For this reason, it is preferable to use a water-cooled or cylindrical pipe cooling system to protect this partial sound 111 from big players. Formed in layers 1. Because
The vortex layer in the width direction of the furnace is essential for maintaining uniformity, and the supply of fuel gas and combustion gas to these 6 traces 115.6 must be done uniformly. or is necessary. Preferably, each passageway 5.6 is provided with 1/8,9 valves, with a number of branch pipes 10, 2 intervening therebetween.

With the configuration as shown in [CC], fuel scum and combustion engine air can be supplied without drifting.

In addition, if the branch pipe is usually installed with 2'P) YJ lithography preferably 3 motions J9 per 1 m of furnace width, The width of each passage 5.6 at the burner base is made larger than the tip 7yB of the burner base,
It is possible to increase the flow velocity of this oil, and with this configuration, the uniformity in the longitudinal direction and the width direction of the furnace can be improved by 1 stitch. I will explain about it.

1, zt 31W1 (using Kanubanake shown in a+,
Dimensions of this burner IJ1 2 and 1 (b)
-100(l mm, 1st, i figure (allc indicator 4=near 0 TJn, stone, -84mm%4=148%4=
23 mm, J3. = (j O+lI+++, A
, = 20 (l mm, 4 = 3 (1(,1n1m
There was a T.

In this barb, rJ fuel scum and burnt July 1 Igage 4 + 1 to each branch pipe that feeds] 0 (1 (1) → so) 1.
In IJ, there are 4, 1r9 [set et al.] 1 in the interval 1~'i+.

Next, 'l'j of dma1 furnace scum and coke scum (calories 230 + 1 to 260 (II<, cal/
NH8! ,'l to 1ilii valley Jul, iI:2.2
~2.4. Nypf'/Nny') 2 (
,1 (1~4 +10 Nj1 o'clock departure,
When I tried to use the burner piton ('1''; color ratio 160 ~ J, 3 shoes ν11), Izu fi also showed a very bad burning situation, and the third [n + (j sword narahi Vc (c)
TLC showed 1-blowout.

That is, Fig. 3 (b) σ, [121 ¥1 (1,))
In the arrow A-A, L! -15 and U C-CG')
Each 111i'[1'rl [QI
B) ni arrow view it IJN;j + , (c) e'' arrow view C
-C cut [rjl] For each polarization distribution care 1, 3rd to 1 (b
) to 8-8, 13-B and CC each b; lr Iru
17ζIt turns out that the falling vortex is equal to Il+ (rJ).

1 to 1 Figure 3 (C) to 2 to 1 (b) arrow view C-C ~ "
(In 1 burner 511M to 200 ru+
4i1/Cjljl Added temperature absorption Δd] Kay+: ゛#' Graph, sign a from the burner tip
kl 800+u+, b rJ 6 U (l +++
+t+, C#'; J 4 QQN+l, d iJ 2
0 [Each of Intm] easy combination kasu.

As the distance between 3rd Shi + (c) VC and Burna Katana becomes longer, the level of 7'L Striking becomes further, but Ya's transformation is small δ.

In other words, the combustibility of the burner related to Mokukomei is good, and the flame shows vA.

Furthermore, the third (!! 1J (b)) shows a mountain shape with a sharp pink color, but this one looks like a mackerel ignition furnace. Conduct a concentrated ignition meeting and compare the energy key of the rattan fire Vc?r - Desired to minimize it?
, it can be seen that the optimal temperature tanoy IJ will be given in the actual ignition 5/' application to the ignition furnace 111. Alternatively, the ignition furnace can be divided into 11 parts, corresponding to the main burner included in it, and 1-f1 in general. 4. As shown in 1(a) and VC (L>) (smoked awn after installation) 9. Ru.

In addition, 'IJ'' ＼＼＼(leg point 〈applied in furnace 6, cut off as 1 tarike, 1 ko, mu + s + t r, r ko) 1 .Luno outside VC example fLLJ
) Can be used in excess of 4 times.

4 I explain that 1ω1 is 1°1i J H>] m+(a>, (bjZz Rahini (C) Vl
Ino゛ (Kashanake sharing about rice 1st night 11th, lε
Longitudinal section of the ignition furnace with f λλφ
Clans showing the vorticity distribution on the cloth surface in the direction of the ignition furnaces 11 of Isso, /12.2 is 1 (a), (b) fx Rahi Vc (c)
Iti Book 96 'jlJ's one hΦ and IK related Casbana's ・1 first 1, 乎+rlti＼く: Nara Hini 4: M tar ++'i IZ', 3rd Corps 1 (
a)IfJ ijL 2nd Ward-CC) 719 to Kasbashi (r-Tuesday h111) 1.
・Part 3 (tJ Rahini (cJ rs main issue) A customer graph showing the status of the monument that was smoked by Kasbana, Part 4 1 (a) Narahini (I)) Illustration of the ignition furnace of the Soshoki equipped with Kasbarnake according to σ Hon's Brother - 1 Vertical 1 ``Surface view and Hirayama j Figure 1'''C: Yes.

Code 5...Moe 4=+Kashoji 6...-
・3 mazotsumi for combustion 1 mm 1hζ55a, 6a...
・・・・・・・・・・・・・・Mixed chicken i 8.9 ・・・・Header patent issued IA: +1 person Kawasaki W! N1RI Co., Ltd.
Person Patent Attorney Matsu-To Yoshi 1ha J Patent Attorney Soe Shima Fumi Wei Hide 1 rd) 100- Fig. 1 (C Fig. 2 (b Fig. 2 (C> Fig. 3 (a) 0 Fig. Figure 3 (b)

Claims (1)

[Claims] The fuel gas passage and the combustion air passage are formed in a full layer.
, the fuel scum passage and the combustion air passage are arranged adjacent to each other, and each passage is throttled by at least a part of its length, and further a mixing chamber is connected to this throttle. What happens? Features and gas burner for ignition such as 1/1 sintered Ai.