JPS5846386Y2 - gas furnace pot lid device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lid device for opening and closing the opening of a pot in a gas furnace.

Conventional pots used for melting alloys in gas furnaces do not usually have lids because opening and closing operations are troublesome, and as a result, heat loss due to radiation from the surface of the alloy inside the pot is extremely large.

The present invention solves the above problems and aims to provide a pot lid device for a gas furnace that is easy to open and close and whose opening and closing positions can be adjusted.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The pot lid device for a gas furnace according to the present invention will be described below according to an embodiment shown in the drawings.

FIGS. 1 and 2 show the lid device of the present invention together with a gas furnace. Exhaust chimney 5
and has.

A pot 4 heated by a gas burner (not shown) and used for melting alloys is installed in the combustion chamber 3, and the lid device of the present invention opens and closes the opening of the iron pot 4, which will be explained below.

On the outer periphery of the gas furnace 1, a pair of guides 14, 14 are provided upwardly.
Another pair of guides 15.15 are fixed pieces 16°16 below.
It is fixed by...

The upper guides 14, 14 are equipped with fixing fittings 23, which will be explained next.
However, fixing fittings 26, which will be described in the same manner, are fixed to the lower guides 15, 15 at appropriate positions on the outer periphery.

That is, the fixing metal fitting 23 is a metal fitting with an abbreviated cross section to which the lever support body 22 made of a pair of steel pieces is fixed.

The fixing fittings 23 and the guide 14.1 are connected to the back plate 24.
4 is held between the guides 14, 14, and fixed at appropriate positions on the outer periphery of the guides 14, 14 by 30.30.

As can be seen from FIG. 3, the fixture 26 is a plate to which a cylinder support 27 made of a pair of steel pieces is fixed.

The fixing fitting 26 is connected to the guide 15.1 between the back plate 28 and the back plate 28.
5 is held between the guides 15, 15 and fixed at appropriate positions on the outer periphery of the guides 15, 15 by means of 30.30.

A bent lever 12 consisting of a front side 12a and a rear side 12b
is swingably attached to the lever support 22 by a shaft 21.

A lid 8 for opening and closing the pot 4 is attached to a front part 12a of a lever 12 with a metal fitting 11.

The lid 8 consists of a disc-shaped main body 9 having a downwardly hanging edge, and a heat insulating material 10 such as ceramic wool stuffed into the lower surface of the main body 9.

A fluid-driven cylinder 20 having an upwardly projecting rod 19 is then pivotally mounted to the cylinder support 27 by an axle 29 .

The rear end of the lever 12 is attached to a mounting bracket 18 fixed to the tip of a rod 19 by a pin 17.

The cylinder 20 is driven and controlled automatically or manually.

The pot lid device for a gas furnace of the present invention has the above structure, and how to use it will be explained below.

In other words, when heating or keeping warm the alloy etc. in the pot 4,
Drive the cylinder 20 to extend the rod 19 and lever 1
2. Lift the rear end and place the opening of the pot 4 in state A with the lid 8 closed.

As a result, radiation from the alloy and the like inside the pot 4 is blocked by the lid 8, particularly by the heat insulating material 10, thereby preventing heat loss.

Next, when pumping out the alloy etc. in the pot 4, the cylinder 20
is driven to retract the rod 19.

At this time, the cylinder 20 swings around the shaft 29, and the lever 12
The rear end of is lowered.

As a result, the lid 8 is raised to the center of the shaft 21, the opening of the pot 4 is placed in the open state B, and the alloy etc. in the pot 4 are pumped out.

As described in the second part, the pot 4 is normally closed with the lid 8, and the pot 4 is opened by raising the lid 8 with the cylinder 20 only when necessary.

The lid device of the present invention is characterized in that the opening and closing positions can be adjusted, and the adjustment method will be explained next.

The case where it is necessary to adjust the opening/closing position of the lid 8 is, for example, when the gas furnace 1
This is a case where the position for pumping out the alloy etc. from the pot 4 is changed after the pot 4 is installed.

In this case, the bolts of the fixing fittings 23.26 are 30°30.
...Turn the fixing bracket 23.26 and the back plate 24.2.
Loosen the clamping of guides 14, 14, 15, and 15 by 8 and 8.

Next, attach the fixing fittings 23.26 to the guides 14, 14, 15.1.
5 to change the positions of the cylinder 20 and lever 12.

Move the cylinder 20 and lever 12 to the required position, and then turn the levers 30, 30, .

This adjusts the opening/closing position of the lid 8, making it easier to pump out the alloy, etc. from the pot 4.

In addition to the above-described embodiments, the pot lid device for the gas furnace of the present invention may have the following configuration.

That is, although the guides 14, 14, 15, and 15 are pipes attached to the outer periphery of the gas furnace 1 in the above embodiments, other guide means may be used.

Furthermore, although the lever support 22 and cylinder support 27 are used to swingably support the lever 12 and cylinder 20, other supporting means may be used.

Also, back plate 24.28 and pole) 30.30...
Although the lever support 22 and cylinder support 27 are fixed to the guide means, other fixing means may be used.

The pot lid device for a gas furnace of the present invention has the following effects in the above configuration and usage method.

(1) The pan lid device for the gas furnace of the present invention includes guide means such as guides 14, 14, 15, 15, etc. provided on the outer periphery of the gas furnace 1, a lid 8 for opening and closing the opening of the pan 4, and an iron lid 8. a lever 12 that supports the lever 12; supporting means for the lever 12, such as a lever support 22 that swingably supports the lever 12 and is fixed to the guide means so that its position can be adjusted; and a cylinder 20 that moves the lever 12 up and down; Since the cylinder 20 is swingably supported and is comprised of supporting means for the cylinder 20 such as a cylinder support 27 fixed to the guide means so as to be adjustable in position, the pot 4 is normally closed with the lid 8 when necessary. Only the cylinder 20 allows the lid 8 to be raised and the pot 4 to be opened, and as a result, heat loss due to radiation from the alloy surface inside the pot 4 is extremely small.

(2) The pot lid device for the gas furnace of the present invention has the same configuration as above, and in particular, since the lid 8 is opened and closed by the cylinder 20, opening and closing operations are not troublesome.

(3) The pot lid device in the gas furnace of the present invention has the same structure as above, and in particular, the support means for the lever 12 and the cylinder 20.
Since the support means can be attached to any position of the guide means provided on the outer periphery of the gas furnace 1, the opening/closing position of the lid 8 can be adjusted, and as a result, it is extremely convenient for pumping out alloys, etc. be.

[Brief explanation of drawings]

FIG. 1 is a partially sectional front view showing the pot lid device of the present invention together with a gas furnace, FIG. 2 is a plan view of the same, and FIG. 3 is a front view of a fixture used in the lid device. 1: Gas furnace, 2: Main body, 3: Combustion chamber, 4: Pot, 5: Chimney, 8: Lid, 9: Main body, 10: Insulating material, 11: Metal fittings, 12
Nilever, 12a: front, 12b: rear, 14.1
5 guide, 16: fixed piece, 17: pin, 18: mounting bracket, 19: rod, 20: cylinder, 21: shaft, 2
2 Nireba - Support, 23: Fixing metal fittings, 24: Back plate, 26
: Fixing metal fittings, 27: Cylinder support, 28: Back plate, 2
9: shaft, 30: bolt.

Claims (1)

[Scope of utility model registration request] Guide means such as guides 14, 14, 15° 15 provided on the outer periphery of the gas furnace 1, a lid 8 that opens and closes the opening of the pot 4, a lever 12 that supports the iron lid 8, and the lever 12 is swingable. supporting means for the lever 12, such as a lever support 22 supported on the guide means and fixed to the guide means so as to be adjustable in position;
A lid device for a pot in a gas furnace, comprising a cylinder 20 that moves up and down, and support means for the cylinder 20, such as a cylinder support 27 that swingably supports the cylinder 20 and is fixed to the guide means so that its position can be adjusted.