JPS589185Y2 - Sintering machine combustion device - Google Patents

Description

[Detailed description of the invention] This invention relates to improvements in the ignition furnace and heat retention furnace, which are the combustion devices of a sintering machine.

As shown in FIG. 1, the sintering machine includes charging equipment consisting of an ore feed hopper 1, a drum feeder 2, and an ore feed chute 3, a sintering machine pallet 4 including ore discharge equipment, an ignition furnace 5, and a heat retention furnace 6. It consists of a conventional ignition furnace 5 and a heat retention furnace 6.
is a so-called fixed type.

That is, as shown in Fig. 2, both furnace bodies have an ignition burner 5-2 and a heat retention burner 6-2 on the ceiling, and are placed adjacent to each other in the direction of movement of the sintering machine pallet. The space between the heat furnaces 6 is partitioned by a side wall 5-3 of the ignition furnace or a separately provided partition wall to form an ignition zone A' and a heat retention zone B'.

The furnace height of the conventional ignition furnace and heat retention furnace mentioned above is fixed according to the maximum thickness of the raw material layer on the sintering machine pallet, and not only the furnace body but also the partition wall itself is fixed, so the refractory During the service life period, no changes or modifications were made to the regular equipment, and of course no changes were made to the furnace height, ignition zone, heat retention zone, etc.

Therefore, if the thickness of the raw material layer on the sintering machine pallet fluctuates widely due to fluctuations in production volume or quality of sintered ore, the volume will increase by 4 when the layer thickness decreases, and the reachable length of the burner frame will also be limited. As a result, it was impossible to ignite with normal energy, and increased energy was required.

In addition, the sinter surface temperature before and after ignition can only be controlled in the ignition furnace and heat retention furnace to deal with fluctuations in the quality of the sintered ore, which has the disadvantage that temperature control for improving quality is less effective. .

This invention is an improvement to solve the above-mentioned drawbacks of the conventional technology.

This idea is an improvement to the structure shown below so that an appropriate furnace height, appropriate furnace volume, and temperature atmosphere can be obtained according to the thickness of the raw material layer on the sintering machine pallet.

In other words, the ignition furnace and heat retention furnace are constructed integrally with a plurality of furnace bodies, each furnace body is made to be retractable to make the ignition zone and heat retention zone variable, and the entire furnace body can be raised and lowered. This is what was done.

Hereinafter, one embodiment of this invention will be described based on FIGS. 3 and 4.

FIG. 3 is a schematic diagram showing the structure of the furnace body of this invention, in which the rear end is a furnace body 101.10 with a partition wall 9-1.
-2 and 10-3 are connected to each other so that they can slide independently in the pallet advancing direction to form a feeding structure, and the inlet of the furnace is closed by the front wall 11, and an independent chamber is provided for each furnace body. Form.

As shown in Fig. 4, each of the above-mentioned furnace bodies has a structure in which it is movably supported on pedestals 12 which can be raised and lowered and which are provided on both sides of the sintering machine pallet I. It consists of a plurality of vertical columns 13 and a connecting member 14 connecting the columns, and a plurality of hydraulic jacks 15.
Each vertical support 13 has a horizontal arm 16 projecting from it, and each furnace body 10-1, 10
-2.10-3 side wall part to rail 18-1, 182.1
8-3 so that they can each be moved independently.

As a method of driving each furnace body, each rod of a cylinder 19-1.19-2.19-3 installed on a horizontal platform 17 is protruded from a member 20-1.20-3 on the side wall of the furnace body.
2. By connecting to 20-3 and operating the cylinder, each furnace body slides back and forth.

On the other hand, a front wall 11 that closes the inlet of the furnace body of the plurality of divided structures
There is no need to move the horizontal arm 1 of the pedestal 12.
Fix the lower ends of both sides on 6.

That is, in the above device, the height of each furnace body can be changed by the hydraulic jack 15 for raising and lowering the pedestal 12 that supports the furnace body, and the height of each furnace body can be changed by the cylinder 19-1 installed on the pedestal 12.
, 19-2, and 19-3, each furnace body can be moved independently.

Note that the supporting structure and moving mechanism for each furnace body are not limited to the above-mentioned method, but any means or mechanism that does not go beyond the technical scope of this invention may be used.

In the figure, 21-1, 21-2 are ignition burners, 22-1, 2
2-2°22-3 indicates a heat retention burner.

For example, a part of the piping for supplying energy to the ignition burner and the heat retention burner has a flexible structure so as to be able to cope with the vertical movement and movement of each furnace body.

In the above device, for example, when attempting to ignite the ignition burner 21-2, first raise and lower the furnace bodies 10-1, 10-2, 103 and the front wall 11 simultaneously using the hydraulic jack 15 for raising and lowering the gantry. Set the furnace height according to the thickness of the raw material layer.

Next, each furnace body is moved to its respective traverse hydraulic cylinder 19-
1.19-2.19-3 to set the A zone, B zone, and C zone in FIG. 3 properly.

In this case, zone A is the dry zone, zone B is the ignition zone,
Zone C can be used as a heat retention zone.

In other words, with this invention, the ignition zone and heat retention zone can be changed arbitrarily, so not only can proper ignition be achieved with the minimum amount of energy, but the heat retention zone and drying zone can also be set as desired, making it possible to control the temperature. Therefore, it is possible to further save energy in ignition and improve component quality and yield.

As mentioned above, this idea consists of a plurality of furnace bodies connected to each other so that the ignition furnace and heat retention furnace of the sintering machine can be extended in the longitudinal direction of the sintering machine, and the height of the entire furnace body can be adjusted. Therefore, even if the thickness of the raw material layer changes due to fluctuations in sintered ore production or operational changes, it is possible to always create an appropriate atmosphere in the furnace, and the amount of energy used can also be maintained at an appropriate level. .

Furthermore, since the ignition zone and heat retention zone are variable, it is possible to control the temperature in the direction of pallet movement, which has a significant effect on optimizing the amount of energy used and improving part quality and yield, resulting in energy savings and productivity improvements. There are advantages that can contribute to

[Brief explanation of drawings]

Figure 1 is a schematic diagram showing the configuration of a sintering machine (DL type) that is the subject of this invention, Figure 2 is a schematic vertical cross-sectional view showing a conventional ignition furnace and heat retention furnace, and Figure 3 is a diagram of the structure of this invention. FIG. 4 is a schematic vertical cross-sectional view showing one embodiment, and FIG. 4 is a perspective view showing an enlarged concrete structure of the above device. 10-1.10-2.10-3 Furnace body, 11
...Front wall, 12... Frame, 13...
...Vertical support, 14...Connecting member, 15...
...Hydraulic jack, 16...Horizontal arm,
17...Horizontal platform, 18-1, 18-2.1
8-3...Rail, 19-1.19-2.19
-3...Cylinder, 20-1.20-2,2
03... Member, 21-1.21-2...
・Ignition burner, 22-1.22-2.22-3...
・Heat retention burner.

Claims (1)

[Scope of utility model registration request] The ignition furnace and protection furnace of the sintering machine are integrally composed of a plurality of furnace bodies connected so as to be extendable in the longitudinal direction of the sintering machine, each furnace body having a partition wall, and an elevating device such as a hydraulic jack. and a combustion device for a sintering machine, which is supported so as to be movable up and down and traversely on a pedestal equipped with a traversing device such as a cylinder, and a furnace inlet portion is provided with a front wall on the pedestal or a separate pedestal.