JPH0542997U - Refractory support structure - Google Patents

Abstract

(57) [Abstract] [Purpose] The refractory around the burner of the heating furnace is cooled by providing a cooling pipe and a refractory support on this cooling pipe to extend the life of the refractory and to provide refractory. Prevents the lining from sticking to the surface. [Structure] In a refractory support device around a burner-nozzle, a refrigerating pipe that is cooled by a fluid and a refractory supporting member are arranged on the cooling pipe to support the refractory.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a refractory support structure, and more specifically, it cools a refractory support mechanism around a burner nozzle of various heating furnaces such as a sintering machine to prolong the life of the refractory. The present invention relates to a refractory support structure capable of reducing sudden furnace downtime, preventing lining from adhering to the refractory surface, and stabilizing burner combustion performance.

[0002]

[Prior Art]

 The refractory support mechanism around the burner nozzle of various heating furnaces such as a sintering machine is a refractory support device such as a hanger tile 2 shown in FIG. 4 or a refractory support such as a metal anchor-1 shown in FIG. It is composed of a structure that supports 5. However, since the refractory around the heating furnace burner nozzle 3 rapidly heats and cools rapidly, when the refractory is supported by the hanger tile 2 shown in FIG. 4, the cut portion of the hanger tile 2 is not supported. 2a, the refractory material 5 falls off, and when the refractory material 5 is supported by the metal anchor-1 shown in FIG. 5, the material used near the burner nozzle 3 in the vicinity thereof is resistant. Since few materials are suitable for high-temperature conditions, metal anchor-1 corrodes at high temperatures and its deterioration is remarkable. Therefore, all of these structures have a problem that the supporting function of the refractory is lost.

Further, as shown in FIG. 6, the fuel gas flow 14 and the combustion air flow 15 which are ejected in a layered manner above the ore layer 20 of the pallet truck 19 are mixed by the throttle portion 16 and then the throttle portion 16 is mixed. The slit-type burner 3 for adjusting the opening of the adjustment nozzle 17 of the slit-type jet 18 at the tip and for injecting and burning the ore layer 20 from this jet is provided, and the raw material is ignited by this burner. However, since the lining deposit 4 adheres and grows on the refractory around the burner -3 during combustion, the burner nozzle 3 is clogged and welded, and the burner nozzle 3 is burned. However, there is a problem in that the stable combustion of the above is hindered (see, for example, JP-A-59-89919).

[0004]

[Problems to be solved by the device]

 The present invention is intended to solve the above problems. Specifically, a metal anchor that supports refractories is cooled by a cooling pipe that cools with a fluid to retain the supporting function of the metal anchor. It is an object of the present invention to propose a refractory support structure for a heating furnace such as a sintering machine that can suppress adhesion of molten raw materials in a heating furnace such as a sintering machine due to a temperature difference due to a temperature decrease on the surface of the refractory material. .

[0005]

[Means for Solving the Problems]

 That is, in the present invention, in a refractory support mechanism around a burner nozzle of a heating furnace such as a sintering machine, a cooling pipe to be cooled by a fluid and a refractory support tool are arranged on the cooling pipe to provide a refractory product. It is characterized in that it is configured to support.

[0006]

[Action]

 The structure and operation of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical sectional view showing an example of a refractory support structure according to the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is an example of an equipment flow of the present invention. 4 is an explanatory view showing a refractory support structure of a conventional example, FIG. 5 is an explanatory view showing another example of a refractory support structure of the conventional example, and FIG. 6 is a conventional example. It is explanatory drawing which shows another example of a refractory support structure. Reference numeral 1 is a metal anchor, 2 is a hanger tile, 3 is a burner nozzle, 4 is a lining deposit, 5 is a refractory material, 6 is a cooling pipe, 7 is a furnace body, 8 is a water supply header pipe, Reference numeral 9 is a drainage header pipe, 10 is a feed water flow meter, 12 is a drainage flow meter, 13 is a drainage port, 14 is a fuel gas flow, 15 is a combustion air flow, 16 is a throttle part, 17 is an adjusting nozzle, and 18 is A spout, 19 is a pallet truck.

First, as shown in FIGS. 1 and 2, the refractory support structure of the present invention includes a cooling pipe 6 which is cooled by a fluid on the refractory support around the upper burner nozzle 3 of the sintering machine. The cooling pipe 6 is provided with a metal anchor-1 so that the refractory 5 is supported.

The cooling pipe 6 uses a fluid such as water or air. The fluid is supplied from the water supply header pipe 8 to the cooling pipe 6 and discharged from the drain header pipe 9 and cooled by this fluid. Structure.

The refractory support tool of the metal anchor-1 is attached to the cooling pipe 6, and a predetermined number is arranged at a predetermined position so that the refractory can be supported.

With the structure as described above, a heating furnace such as a sintering furnace is heated by a flame injected from a burner nozzle, and a fluid is constantly supplied from the water supply header pipe 8 to the drain header pipe 9. By supplying and cooling the refractory support, the refractory support function of the metal anchor-1 is protected from high temperature corrosion, the corrosion of the metal anchor-1 is reduced, and the life of the refractory is extended. Further, in the vicinity of the refractory water-cooled portion where the cooling pipe 6 is provided, the raw material melts and evaporates due to the decrease in the surface temperature, and the lining-attached material 4 as shown in FIG. The refractory support tool has been described above with reference to the example of the metal anchor-1. However, the refractory support tool of the present invention is not limited to this as long as it can support the refractory material similarly to the metal anchor. .

In the present invention, since the refractory around the burner nozzle of the heating furnace such as a sintering machine is cooled and removed by the fluid that constantly flows through the cooling pipe 6, the heat balance is calculated in advance. It is necessary to perform calculations and be able to respond.

[0013]

[Effect of the device]

 As described in detail above, in the present invention, in a refractory support mechanism around a burner nozzle of a heating furnace such as a sintering machine, a cooling pipe cooled by a fluid and a refractory support tool are provided on the cooling pipe. However, it is characterized in that it is configured to support a refractory.

According to the present invention, a pipe cooled by a fluid in a refractory supporting device around a burner nozzle of a heating furnace such as a sintering machine and a refractory having a refractory supporting member arranged on the cooling pipe. Since the refractory is supported and cooled, the life of the refractory can be extended, the sudden stoppage of the furnace can be reduced, and the adhesion of lining deposits on the refractory surface can be prevented. Can be stabilized.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an example of a refractory support structure according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory view showing an example of an equipment flow of the present invention.

FIG. 4 is an explanatory view showing a refractory support structure of a conventional example.

FIG. 5 is an explanatory view showing another example of the conventional refractory support structure.

FIG. 6 is an explanatory view showing another example of the conventional refractory support structure.

[Description of symbols] 1 metal anchor 2 hanger tile 3 burner nozzle 4 lining deposit 5 refractory 6 cooling pipe 7 furnace body 8 water supply header-pipe 9 drainage header-pipe 10 water supply flowmeter 12 drainage flow rate Total 13 Drainage port 14 Fuel gas flow 15 Combustion air flow 16 Throttling part 17 Adjusting nozzle 18 Jet outlet 19 Pallet trolley 20 Ore layer

Claims (2)

[Scope of utility model registration request] 1. In a refractory support mechanism around a burner nozzle of a heating furnace such as a sintering machine, a cooling pipe cooled by a fluid and a refractory support are disposed on the cooling pipe, and the refractory is provided. A refractory support structure characterized by being configured to support a. 2. The refractory support structure according to claim 1, wherein the refractory support is a metal anchor.