JPS5950115A - Walking beam type multizone continuous heating furnace - Google Patents

Abstract

PURPOSE:To provide a titled continuous heatig furnace which can be made into a charging zone, preheating zone and soaking zone from either side of the furnace by forming the furnace approximately symmetrical before and behind in the longitudinal direction thereof with the center at the furnace length as a virtual reference, and using the central part as a combustion zone at all times and both side parts as selective combustion zones. CONSTITUTION:Heating of a material W in the above-described heating furnace in conveying the same from the left to the right is accomplished by opening only the evacuation port 11a, and switching the burners in the 1st selective combustion zone 3 off and the other burners 5 on. More specifically a preheating zone A is formed of a part of a normal combustion zone 2 and a part of the zone 3, and a charging zone B is formed of the remaining of the zone 3. On the other hand, a heating zone C is formed of the remaining of the zone 2 and a part of the 2nd selective combustion zone 4 and a soaking zone D is formed of the remaining of the zone 4. Moving beams 6 are driven by the 1st cylinders 8 for back and forth movement and eccentric wheels 9 for vertical movement to convey the material W to the right in the furnace. Therefore the material W conveyed with the 1st conveyance table 12a is charged into the furnace by the 1st transfer device 13a and is conveyed in the furnace by the driving of the beams 6. The material W is preheated, heated and soaked during this time, and is transferred on the 2nd conveyance table 12b by the 2nd transfer device, whereafter the material is transferred to a rolling mill.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-zone walking beam continuous heating furnace.

Conventionally, in multi-)H-type walking beam type continuous heating furnaces, materials are charged into the furnace from lees setting charging 1, and are heated while being conveyed by the walking heater. The material is extracted from the furnace outside the furnace, and the structure of the furnace corresponds to that.

In the past, in conventional multi-zone continuous heating furnaces, for example, when it became necessary to modify the rolling mill installed on the extraction side of the furnace, it was necessary to modify the rolling mill itself while it was in operation. However, during the modification 101, the entire rolling line, including the furnace itself, has to be stopped, which inevitably leads to a decrease in productivity.

The present invention was made as a result of inspection to solve the above-mentioned conventional inconveniences, and it makes the multi-zone continuous heating furnace almost symmetrical in the furnace length direction after mJ with the center of the furnace length as a virtual reference, and
The central part is a constant combustion zone, and both sides are a switching combustion zone, and either side can be used as a charging/extraction side by functioning as a heating/soaking zone. For example, if a new rolling mill is constructed on the furnace's charging table line separately from the operating rolling mill on the furnace's extraction table line, this j[-rolling mill construction To provide a multi-type walking heel type continuous heating furnace that, after completion, can be replaced with a new rolling mill by minimal modification of the furnace itself without requiring long-term suspension of the Hibino line. The purpose is to

At the same time, the present invention will be explained with reference to the drawings, which are one embodiment of the present invention.

The continuous heating furnace 1 is based on the virtual base of the long center of the J1.
The furnace is constructed symmetrically in the longitudinal direction, and the central part is always 111
Burning: ;; 2, Switch both sides to 1st and 2nd cooking) Grilling belt 3
゜4 and (7. So (7), the burner 5 that goes to the above-mentioned constant combustion 4E2 is always ON, and the first and second exchange combustion...
Either one of the burners 5 at l3゜4 is turned on,
The other one is operated so that it becomes 01.1.

In addition, the moving beam 6 performs rectangular movement by the -J:, 'F moving eccentric wheel 7 and the first forward/backward moving nolinter 8, and transfers the material W to the stationary heel 10 and the moving beam 6 at an intersection of 11'. , (Transporting the A material W from the left to the right in the figure -) i
By means of the moving eccentric wheel 7 and the second longitudinal moving link 9, the material 4'A is transferred to the left from the direction I in FIG.

Furthermore, the first and second switching processes are: j, j: 3
, 4, door 1 ; l , 11) are connected to the exhaust, respectively.
] i a , 111) are provided, each 1υl ki +
11. ]jl, 1.11) is JJI Kasukut (1
1, 1, -11) are connected to τ, and 11 are connected to the collective flue (. However, 7, [as shown in ~, r7; a, I l
b Neuss car The direction is closed.

In addition, 12a, ], 2b are the first and second griddles 1 which are provided perpendicular to the furnace length direction, and ]3a.

131) are the first and second transfer devices, 14 is the furnace partition wall, 1
5a and 15b are scale troughs forming a known scale Ill: fNl and J'M, and a moving beam 6.
Notsu! Scale trough l- by lIl series
1, 6a or 16b.

In order to heat the material W from the left nozzle j to the right in the diagram (7), only the exhaust gas 1j 11 a is opened.
1) Set the burner 5 of the first switching combustion zone 3 to 01"
1' and turn on the other burners 5. In other words, force】
As shown in the diagram, constant combustion; part of jl42 and the first
Switching combustion (:: Part of it is used for preheating, ?g) J switching combustion/IB': The remainder of 4 is charged/total (13 is formed, while 'Small combustion: 1; The remainder of 2 and a part of the second switching combustion zone L, E;!1!; .

/, I: Oh, in J-1 υ) 911 people and 11) 1 tert will be fought from Soaking zone II).

In addition, the moving beam 6 is driven by the linter 8 for the iJ rear moving river and the moving eccentric wheel 9 for moving the moving beam 6, and the moving beam 6 is transported into the furnace from the left to the right in Figure 1-1. drive it to do so.

Therefore, the 4n material W transported by the first transport table 12a is charged into the furnace by the first transfer device (charging machine) 13a, and transported into the furnace by the driving of the moving beam 6.
During this time, the material W is subjected to T heat, heating, and soaking, and is transferred to the second transport chifur 12b by the second transfer device (extractor) 13b, and is transported to Hinobe 1, not shown.

Now, if it becomes necessary to modify the rolling mill on the side of the second transfer table 121, a new Nippon mill will be installed on the first differential 12.
Provided on the a side, contrary to the above, the first switching fuel! ,! 1ba1:;
Turn on the burner 5 of No. 3, and set the burner 5 of No. 14 to OFl;
Around the second time! By driving the JIJ JTL printer 9, the second Hiragi equipment (charging machine) 1 is transferred from the second conveyance charger 121).
31), all the materials were in Wru=, 13-i, and there was no conveyance to the first conveyor chifur 12a, and IJu±J(
do. In addition, in this case, close the exhaust l111 sill [,
At the same time, open 4 Jl II], ]-1).

Once U7, contrary to the above case, charging lBj l
(The soaking zone is added to the warming zone, and the preheating zone is added to the heating zone.)
The belt 11 (and the soaking zone 1) will be the charging zone, and the heating zone I will be heated in the same manner as described above.

The furnace interior E1 cut wall 14 is used for the furnace structure, warning or addition.
8 system as shown in FIGS. 2 and 3.

In addition, in the above embodiment, the 111j rear Kawaura It cylinder and the scale trough were respectively installed on both sides of the furnace. When changing the glue (when reversing the conveying direction), the existing back-and-forth moving Urazuki printer and scale trough may be moved to the opposite side, respectively.

As is clear from the above explanation (according to the multi-zone walking beam type continuous heating device invented by Otogi, the light is set with the center of the furnace length as a virtual reference)] the direction of the long direction is almost 100 degrees, and the rear direction is symmetrical. At the same time, the central part is always attached with the name ・jl;, both sides;'X
By setting 1≦ to f, 14H firing: 1; and setting either burner of the switching combustion meter to 01.1, charging zone and preheating can be performed from either side of +-i. , heating zone and soaking. Once upon a time,
Even if the rolling mill were to be revised, it would be necessary to install another rolling mill on the previous charging roll line and to switch the switching combustion zone and moving beam horse movement means. Since the charging and extraction sides of the furnace can be reversed and continuous heating can be used, unlike conventional methods,
There is no daytime system in which the entire rolling line, including the continuous heating section 1, is closed for a long period of time, and productivity can be improved accordingly.

[Brief explanation of drawings]

FIG. 1 shows various types according to the present invention;
714 continuous heating furnace (cross-sectional view of the furnace, Figures 2 and 3; Figure 2 is a cross-sectional view of only the J:J i main body without showing other tai types. 1... Continuous jJll heat furnace, 1a+ 1””’jJA,
2-Continuous combustion:;:, 13.1st J exchange combustion zone, 4.
・Second switching combustion, 5 ・Burner, 6... Moving beam,
10... Fixed beam, w 1'41; l, A... Preheating: 8 (heating zone), 13 ・Charging zone (soaking side), C.
Heating (preheating/()(), 1) Evenly! j 'i:'j
'(Charging; 87: ). Special 11° Applicant Chugai J Near Me 1: Yi Co., Ltd. Fuyu I Same as above Kawasaki Tsuyaku A, Ministry of Co., Ltd. 1 Representative Patent Attorney Afyama Ao and 2 others

Claims (1)

[Claims] (]) Multi-zone walking beam continuous heating furnace odor”
-C11) The IJ furnace shape is almost symmetrical in the furnace length direction with the center of the furnace length as a virtual reference, and the central part is a constant combustion zone, and the IH1 side sides are a switching combustion zone. Suruta・：H type oaking hem type continuous JJf-+
Heat furnace.