JPS6135559Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a baffler for controlling the pressure inside a batch annealing furnace.

The internal pressure of the annealing furnace is controlled by drawing the exhaust gas inside the furnace into a water sealing device called a baffler and using the water column pressure, which causes the exhaust gas to displace water and create bubbles. There are three bafflers per annealing furnace base, each controlling the pressure inside the inner cover, the pressure between the outer cover (furnace body) and the inner cover, and the pressure between the atmosphere and the outer cover. FIG. 1 is a schematic diagram of a conventional baffler. 1 is an inner cover, 2 is a refractory furnace body (outer cover), 3 is a baffler, and 4 is a coil. 5 is an exhaust gas diffuser. In such conventional annealing furnaces, in order to facilitate movement and handling of controls within the annealing furnace building, an exhaust gas dissipation pipe that guides the exhaust gas that has passed through the baffler to the atmosphere is extended outside the building. As a result, the exhaust gas pipes are long and often clog due to contamination with dust, condensed water, etc.
The amount of time wasted in this cleaning was enormous.

In addition, the baffler was located underground in the furnace base, making maintenance and inspection difficult and a hindrance to annealing work.

The present invention eliminates the drawbacks of the conventional method by shortening the exhaust gas dissipation pipe by burning the exhaust gas in the vicinity of the furnace, and by making the dispersion pipe movable together with the outer cover. Moreover, by consolidating three bafflers into one and installing it on the floor, maintenance inspection and cleaning frequency can be reduced.

This will be explained below based on the drawings.

The exhaust gas in the inner cover 1 is discharged from the lower end of the immersed body 7 to below the water surface in the baffler 3 through a pipe 6. On the other hand, the exhaust gas inside the inner cover 1 and the outer cover 2 is supplied into the upper lid 10 of the water sealing device 9 through a conduit 8 fixed to the outer cover 2.
That is, inside this upper lid 10 there is a partition plate 11,
The gas is supplied to the left side of the partition plate 11 (exhaust gas supply side a). Furthermore, this exhaust gas is discharged below the water surface of the baffler 3 through the immersion pipe 12. Both exhaust gases thus released below the water surface of the baffler 3 are sent to the water sealing device 9 by the riser pipe 14 fixed to the upper cover 13 of the baffler 3.
The exhaust gas is led out to the right side of the partition plate 11 above the water surface (exhaust gas exhaust pipe b), and then burned and diffused into the atmosphere through the exhaust gas diffusion pipe 15 fixed to the upper lid 10.

On the other hand, water is first supplied to the water sealing device 9 and the baffler 3 from the supply source through the piping 15 to the water sealing device 9.
Water that overflows is received by a receiving tray 16 and circulated into the baffler 3 through a pipe 17, and water that overflows the baffler 3 is received by a receiving tray 18 and drained via a pipe 19. still,
In the figure, 20 indicates a supply pipe for annealing gas.

As described above, this invention includes the outer cover 2, the conduit 8, the upper cover 10 of the water sealing device 9, and the exhaust gas dissipation pipe 5.
Since it has an integral structure and the exhaust gas is dissipated near the annealing furnace, the length of the exhaust gas dissipation pipe 5 is significantly shortened, and the cleaning work inside the pipe is simplified.
Having the exhaust gas diffusion pipe 5 in the vicinity of the annealing furnace in this way poses a problem when carrying in and out of the annealing coil, but in the present invention, by removing the outer cover 2, the exhaust gas diffusion pipe 5 can also be removed together with the annealing furnace. Since the location will be evacuated, the above problem will not occur at all. Also, if the baffler is installed on the floor, maintenance will be easier.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing a conventional annealing furnace baffler. FIG. 2 is a diagram of an annealing furnace baffler according to the present invention. 1...Inner cover, 2...Outer cover (furnace body), 3...Baffler, 4...Coil, 5...
Exhaust gas diffusion pipe, 7... immersion body, 8... fixed conduit,
9...Water sealing device, 10...Upper lid, 11...Partition plate, 12...Immersion tube, 13...Baffler upper cover, 1
4...Rising pipe.

Claims (1)

[Scope of utility model registration request] In a batch type annealing furnace in which atmospheric gas is supplied into the baffler to adjust the furnace pressure, a water sealing device 9 is provided above the baffler, and a lid 10 immersed in the water sealing device is provided with a water sealing device 9 above the baffler. , a partition plate 11 is provided on the inside thereof, and an exhaust gas conduit 8 and an exhaust gas diffusion pipe 5 are provided on the outside of the lid located on both sides of the partition plate, respectively, to connect to the outer cover 2 of the annealing furnace.
The exhaust gas supply side a in the lid of the water sealing device and the water in the baffler are connected by a pipe 12 passing through the water sealing device and the baffler lid 13, and the tip of an exhaust gas discharge pipe 14 provided in the baffler lid. A baffler for a batch type annealing furnace, which is formed by passing through a water sealing device and opening into an exhaust gas discharge pipe b in the lid of the water sealing device.