JPH0585488U - Melting accelerator for melting furnace for industrial waste - Google Patents

Abstract

(57) [Summary] [Purpose] To promote the melting of asbestos waste that has been poured into the surface of the melting tank. [Composition] A pushing burner 11 for injecting a flame onto the molten metal surface S is provided on the side wall of the melting tank 1 below the waste charging port 4,
The asbestos waste A floating on the molten metal surface S is pushed into the molten metal M and heated.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a melting accelerator of a melting furnace for heating and melting industrial waste such as asbestos for processing.

[0002]

[Prior Art]

 Industrial wastes, such as asbestos wastes discharged from building wastes, are harmful if discarded as they are in landfills.Therefore, add a small piece of glass to heat and melt it, and then drop the molten metal into cooling water. It is being solidified into glass. In this melting furnace, asbestos waste is charged into a melting tank equipped with a heating electrode through a waste charging port and heated and melted.

[0003]

[Problems to be solved by the device]

 However, since the apparent specific gravity of asbestos waste is small, it floats on the surface of molten asbestos waste (hereinafter referred to as the molten metal), and the area in contact with the molten metal is small, and the air between it and the molten metal is small. It was in a state in which it was difficult for heat to transfer due to the intervening layers. Therefore, there was a problem that the asbestos waste that was put in was difficult to melt and the melting speed, that is, the processing speed was slow.

The present invention aims to solve the above problems and provide a melting accelerator for a melting furnace for industrial waste, which is capable of accelerating the melting speed of the industrial waste put into a melting tank. And

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the melting promoting device of the melting furnace for industrial waste of the present invention has a fluid injection means for pushing the waste floating on the molten metal surface into the molten metal in the melting tank below the waste input port. It is provided.

[0006]

[Action]

 In the above configuration, the waste having a small specific gravity injected from the waste input port floats on the molten metal in the melting tank, but the fluid injected from the fluid injection means pushes the waste into the molten metal. The waste can be brought into contact with the hot melt to increase the contact area with the melt, accelerate heat conduction and accelerate the melting rate.

[0007]

【Example】

 An embodiment of the asbestos melting furnace according to the present invention will be described below with reference to the drawings. The melting tank 1 of the melting furnace is composed of a front side melting chamber 1a and a back side molten metal reservoir 1b, and the melting chamber 1a and the molten metal reservoir 1b are connected to each other via a bottom passage 1c formed by a down weir 2. There is. A heating electrode 3 is arranged in the melting chamber 1a, a waste input port 4 is formed on the upper side thereof, and a molten metal discharge port 5 is formed on a rear side wall 1d of the molten metal storage chamber 1b.

Pushing burners (an example of fluid ejecting means) 11 constituting a melting promoting device are respectively provided on the left and right side walls 1e and 1f above the melting chamber 1a so as to incline downward toward the molten metal surface S. There is.

In the above-mentioned configuration, in the melting tank 1, the asbestos waste A is heated and melted by the heating electrode 3 to store the molten metal M, which is sequentially discharged from the molten metal reservoir chamber 1b through the molten metal discharge port 5. .. The asbestos waste A input from the waste input port 4 has a low specific gravity and thus floats on the molten metal surface S. At this time, the ascending burner 11 is ignited and the flame is suspended from above. By being sprayed toward the object A, the pressure of the flame causes the asbestos waste A to sink into the molten metal M to increase the contact surface area with the molten metal, and at the same time, heat the asbestos waste A by the flame. Since the surface of the molten metal M is also heated by the flame of the indenting burner 11, the floating asbestos waste A and the asbestos waste A immersed in the molten metal M can be effectively heated to accelerate the melting speed. The speed can be increased significantly.

[0010]

[Effect of the device]

 As described above, according to the present invention, since the fluid injection means for pushing the waste injected from the waste input port into the molten metal is provided, even if the waste has a small specific gravity and floats on the molten metal surface, The contact area with the molten metal can be increased to promote melting, and the processing speed of the melting furnace for industrial waste can be greatly increased.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an embodiment of an asbestos melting furnace according to the present invention.

FIG. 2 is a front sectional view of a melting chamber of the asbestos melting furnace.

FIG. 3 is a plan sectional view of a melting chamber of the asbestos melting furnace.

[Explanation of symbols]

 1 Melting tank 1a Melting chamber 1e Left side wall 1f Right side wall 3 Heating electrode 4 Waste input port 11 Push burner

Front page continued (72) Inventor Akira Yokokawa 1-4-6 Sakurajima, Konohana-ku, Osaka City, Osaka Prefecture Hitachi Shipbuilding Engineering Co., Ltd. (72) Inventor Masami Okuda 1-4-6 Sakurajima, Konohana-ku, Osaka City, Osaka Prefecture Within Hitachi Shipbuilding Engineering Co., Ltd. (72) Inventor Takao Otani 1-4-6 Sakurajima, Konohana-ku, Osaka-shi, Osaka Prefecture Within Hitachi Zosen Engineering Co., Ltd. No. 6 within Hitachi Zosen Engineering Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A melting promoting apparatus for a melting furnace for industrial waste, characterized in that fluid melting means for pushing the waste floating on the molten metal surface into the molten metal is provided in the melting tank below the waste charging port.