JPS6036879Y2 - Local spray repair device for molten metal containers - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for repairing damaged parts of the refractory lined in the container by inserting the spray nozzle 1 into the manhole of various molten metal containers (hereinafter referred to as containers). The present invention provides a device in which a spray nozzle 1 can freely slide within a container and repair any damaged area around a manhole by spraying.

As a measure to extend the life of the refractory lining of containers, various repairs are being carried out to repair locally damaged parts.

For example, as a local spray repair method for blast furnaces, a spray nozzle is inserted through a manhole, and if a straight nozzle is used, the opposite wall of the manhole is spray repaired, and the key-shaped spray nozzle 14 (Fig. 1) is used to locally spray repair around the manhole. There are spray repair techniques such as

When performing spray repair using the key-shaped spray nozzle 14, there is a major drawback in that only a narrow area around the manhole can be repaired because the curvature of the inserted key-shaped spray nozzle 14 is limited depending on the diameter of the manhole.

This invention is a spray repair device that solves the above-mentioned drawbacks.
When inserting into a manhole, it is inserted in a straight state, the folding/bending member 3 is bent at a substantially right angle in the furnace by an air cylinder 2, and the spray nozzle 1 is slid and placed at the desired repair position. be.

Air cylinder as a bending mechanism! It can be bent arbitrarily from outside the container using a pneumatic motor, etc.

Rotation, raising and lowering, moving left and right, etc. of the nozzle can be carried out almost automatically by driving a motor as conventionally done.

Further, the length of the bending member 3 can be changed as appropriate depending on the repair position.

The present invention will be explained in detail with reference to the drawings.

FIG. 1 is a plan view of a situation where a key-shaped spray nozzle 14 is used for local repair from a blast furnace manhole, which has been conventionally employed, and FIG. 2 is a schematic diagram showing an example of the local repair device of the present invention.

Reference numeral 1 denotes a spray nozzle, which is made of a material such as metal or rubber, and can be configured to add water.

2 is an air cylinder for bending the bending member 3, and may be a hydraulic power cylinder, an electrically driven cylinder, or the like.

A straight pipe 4 has an inner diameter through which the material hose 6 can pass, and is supported by a blind pipe support 8 outside the container.

Reference numeral 7 denotes a straight pipe support stand having a mechanism for rotating, raising and lowering, and laterally moving the straight pipe 4 within the range of the manhole opening via the blind pipe support part 8.

13 is a refractory lining to be repaired.

The joint 5 portion of the straight pipe 4 and the bending member 3 can be bent into a substantially right-angled L-shape by hinge connection.

Further, the spray nozzle 1 is structured to be able to freely slide between A and B of the bending member 3 by means of a nozzle moving wire 12.

In addition, the present device will be briefly explained according to the operating procedure: (1) The straight pipe 4 supported by the true pipe support section 8 is inserted into the container through the manhole hole in a straight state.

(2) Operate the air cylinder 2 to bend and fix the bending member 3 into an L-shape.

(3) The spray nozzle 1 provided on the bending member 3 drives the straight pipe support 7, fixes it at any position with the nozzle moving wire 12, and supplies materials, water, etc. to perform local repairs inside the container. .

The local spray repair device according to the present invention has the following great advantages.

(1) Insert the nozzle through a small hole such as a manhole,
A wide area around the hole can be repaired.

(2) Repairing from the opening of the container (furnace mouth) requires a very large-scale device, but if it is a visitor's device, it can be small.

Therefore, the present invention is a highly novel and useful invention.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a situation where a blast furnace manhole is locally repaired using a known key-shaped nozzle 14. FIG. 2 is a schematic diagram of the local repair device of the present invention in a furnace. In the figure, 1...Blow nozzle, 2...Air cylinder, 3...Bending member, 4...
Straight pipe, 5... Joint, 6... Material hose, 7... Straight pipe support, 8... True tube support, 9... ...wire receive, 10...
... Air hose, 11 ... Water hose, 1
2...Wire for nozzle movement, 13...
・Refractory, 14...Key-shaped spray nozzle, 15...
... Manhole, 20 ... Spray repair device,
30... Molten metal container, A-B... Indicates the direction in which the spray nozzle 1 moves upward and downward on the bending member 3.

Claims (1)

[Scope of utility model registration request] The bending member 3 attached to the tip of the straight pipe 4 is erected from straight to a substantially right-angled state by an air cylinder, an electric drive cylinder, etc. , B
A local spray repair device for a molten metal container, which is characterized by sliding freely between the containers.