JPS5848553Y2 - firing furnace - Google Patents

Description

[Detailed description of the invention] The present invention relates to a firing furnace such as an electric furnace. Conventionally, in a firing furnace where a top plate is placed on the top and the lid is closed, the top plate is opened and the top is opened as shown in Figure 1. The process of storing the raw materials and taking out the fired products was inconvenient and time-consuming.

Regarding this point, it is possible to divide the earthen wall part of the front wall of the furnace body and form the earthen wall part integrally with the top plate, but when the top plate is opened after firing and air-cooled, the upper part of the front wall is also removed. Since the furnace is in an open state, the flow of air inside the furnace is not constant, which may cause problems such as uneven cooling of the fired product and variations in the product.

Therefore, the present invention has been able to eliminate the above-mentioned drawbacks, and nine details of the present invention will be described below with reference to illustrated embodiments.

In this example shown in FIGS. 2 to 5, 1 is a firing furnace body formed of a refractory material such as ceramic fiber,
Its top surface is open.

Reference numeral 2 denotes a top plate that covers the upper surface of the furnace main body 1, and the top plate 2 is connected to the upper end of one side of the furnace main body 1 with a pin (not shown) so as to be rotatable.

Reference numeral 3 denotes a wire, and by locking one end of the wire to a locking ring 2a protruding from the upper surface of the open side of the top plate, the top plate can be moved using a pulling movable device using a pulley as shown in Fig. 1, using a pin as a fulcrum. 2 is rotated.

Note that K is a heating wire stretched around the inner periphery of the furnace body 1.

A distinctive feature of this example is that the front wall 1a of the furnace body 1, which is buttoned on the open side of the top plate 2, is divided into upper and lower halves to create an upper wall plate 1b.
and a lower wall plate 1c, the lower wall plate 1c is formed integrally with the furnace body 1, and the clay wall plate 1b is detachably attached to the top plate 2.

That is, a part of the protective piece 2b attached to the outer periphery of the top plate 1 is lengthened to form a mounting piece 2c, and a mounting piece 1e is connected to the protective piece 1a provided on the upper edge of one of the earth wall plates 1b. , a threaded portion Ta of a stud bolt T is provided protrudingly from each mounting piece 1e, 2c.

Then, insert the mounting holes made through each side of the thread 4 into the respective bolts T.
After passing it through the threaded part Ta.

It is screwed on with wing nuts 5 and 6.

As a result, the earth wall board 1b is integrated with the lower surface of the open side of the top board 2 via the hinge 4, and by removing either of the wing nuts 5, 6, the two can be separated.

As shown in FIG. 3, the lower end local part of the top plate 2 and the upper inner peripheral part of the earthen wall board 1b are connected in a state where they are in contact with each other.

T is a bent holding member which is rotatably connected to a bracket 8 fixed to the upper end of both sides of the furnace main body 10;
A bolt 9 is attached to the holding piece 7a for tightening (the sixth
(see figure).

In this example, since the work was intercepted in this way, when storing the raw materials in the furnace, the clay wall board 1b was fixed to the top board 2 as shown in Fig. 2, and then moved by a movable device (not shown). The wire 3 is pulled up and the top plate 2 is rotated and opened as shown in Fig. 4.

As a result, the earthen wall plate 1b is also lifted at the same time as the top plate 2, so that the upper part of the front wall 1a in addition to the upper surface is in an open state, and the bottom 1 of the furnace can be reached and the raw materials can be stored smoothly.

After storage, the top plate 2 is again placed on the upper surface of the furnace body 1 as shown in Fig. 2, and the clay wall plate 1b is placed on the lower wall plate 1c to close the upper part of the front wall 1a for firing. .

After firing, when the top plate is opened and air-cooled, the connection between the top plate 2 and the hinge 4 is released by removing the respective wing nuts 6 from the bolts T, and one piece of the hinge 4 is folded back to the clay wall piece 1b side. After that, it is only necessary to rotate the top plate 2 using the wire 3 to open it.

As a result, only the top surface of the furnace body 1 is opened as shown in FIG. 5, so that uniform cooling of the fired product can be achieved.

Incidentally, during firing, the top plate 2 and the clay wall board 1b may be removed in advance.

During air cooling, after rotating the holding member 7 to position the holding piece 7a in front of the earth wall board 1b as shown in Fig. 6, tighten the bolt 9 with the tip of the bolt 9 to the earth wall board 1b. By pressing against it, the arrangement of the earthen wall board 1b can be stabilized.

However, even without the presser material 7, the earthen wall board 1b is stabilized by its own weight.

When taking out the fired product after air cooling, first turn the top plate 2 to cover the furnace body 1, then remove the presser 7 and attach one piece of the hinge 4 to the bolt thread Ta with the wing nut 6. All you have to do is rotate the top plate 2 again with the top plate 1 and the clay wall plate 1b integrated by screwing them together. 3 This will cause the top surface of the furnace body 1 and the top of the front wall 1a to separate as shown in FIG. Since it is in an open state, it becomes extremely easy to take out the fired product.

Although this example is configured as described above, the present invention is not limited to this.

For example, regardless of the connection configuration and connection location between the top plate and the earthen wall board, there may be a structure in which the top plate and the earthen wall board are engaged and connected by sliding the connecting member 10 as shown in FIGS.
As shown in Figure 1, the fitting piece 12 having the engagement groove 12a connected to one piece of the hinge 11 is rotated to engage with the protruding threaded part, and the threaded part is screwed with the wing nut 14 to connect. It can also be a configuration.

Further, the height of the upper wall plate is also arbitrary, and may be about half the height of the front wall.

Furthermore, the shape of the earthen wall board may be appropriate, and it may be in an inclined state as shown in FIG. 9, as long as it can be installed on the lower wall board.

The shapes of the converter main body and the top plate are not limited, and the movable device for rotating the top plate and the coupling configuration with the furnace main body for rotating the top plate are also not limited.

! As long as the firing furnace is used, electric furnaces, gas furnaces, etc. are also suitable.

Furthermore, although this is not the gist of the present invention, the configuration of the holding member for stably placing the earthen wall board removed from the top plate may be arbitrary. Good too.

In short, the present invention is a kiln that constitutes the "claims of utility model registration."

Therefore, according to the present invention, the upper part of the front wall can be opened when storing the raw materials or taking out the fired products, making the work extremely easy, and the open upper part of the front wall can be closed during air cooling after firing, so that the fired products can be removed easily. The effect is significant because there is no problem with uniform cooling.

The connection between the top plate and the clay wall board is also a simple and practical idea.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a conventional kiln, Fig. 2 is a perspective view showing an embodiment of the present invention, Fig. 3 is a vertical sectional view of the main part, and Fig. 4 is a top view of the furnace with clay wall plates fixed to it. Fig. 5 is a perspective view using only the top plate with the earth wall board removed; Fig. 6 is an enlarged perspective view showing an example of the holding material for fixing the earth wall board; Fig. 7 8 is a perspective view of the main part showing the separate connection structure between the top plate and the earthen wall board, FIG. Fig. 10 is a longitudinal sectional view of the main part showing the separate shapes of the earthen wall board, Fig. 10 is a perspective view of the main part of the connecting part, and Fig. 11 is a perspective view of the main part with the connecting member removed. . 1: Furnace body, 1a: Front wall, 1b: Upper wall plate, 1c: Lower wall plate, 1e: Mounting piece, 2: Top plate, 2c: Mounting piece, 4, 10
．． 11. 12: Connecting material, 7° 13: Pressing material.

Claims (1)

[Scope of utility model registration request] It is equipped with a furnace body with an open upper surface, and a top plate that is connected to the furnace body on one side so as to be rotatable. In the case where the top plate can be opened and closed, the front wall 1a of the furnace body on the open side of the top plate 2 is divided into a lower wall plate 1c and an upper wall plate 1b, and the lower wall plate 1c is integrally formed with the furnace body and connected. A firing furnace characterized in that an upper wall plate 1b that can be placed on the lower wall plate through a material is detachably attached to the open side of the top plate 2.