JPS583038Y2 - Automatic spray repair device for inner wall of soaking furnace - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for repairing the inner wall of a soaking furnace by spraying a monolithic refractory material thereon.

An automatic device for partially repairing damaged inner walls of soaking furnaces has not yet been provided, and hitherto relied solely on manual operations.

However, with manual work, it is extremely difficult to secure the distance and direction to the spraying surface, there is a lot of material loss when spraying rebounds, and furthermore, work is forced in dangerous areas near the opening of the soaking furnace. They were forced to do hard labor in extremely inhospitable, dust-filled, high-temperature environments.

The present invention has been made for the purpose of providing an automatic device capable of solving such problems, and an embodiment thereof will be described below based on the drawings.

FIG. 1 is a front view showing the relationship between the entire apparatus, the soaking furnace, and the furnace lid, and shows a state in which repair work has begun.

In the figure, A denotes a soaking furnace, and B denotes a furnace lid. The furnace lid B is supported at its base end by a cart C, and is opened and closed by the movement of the truck C.

Note that a pressure tank D is mounted on the above-mentioned truck C, into which a monolithic refractory material to be spray-painted onto the furnace wall is press-fitted.

By the way, the device that forms the main body of the present invention is used while being mounted on the tip of the furnace cover B, but when not in use, it is detached from the mounting, suspended by a crane, etc., and stored in an appropriate location. It is not something that should be set on the hearth all the time.

The same applies to the pressure tank D mentioned above.

The device of the present invention can be roughly divided into components: a base 1 mounted and fixed on the furnace lid B, a trolley 2 mounted on the base 1 and capable of moving a predetermined amount left and right; A machine frame 3 assembled on a trolley 2, a cylinder 4 rotatably and vertically supported on the machine frame 3, a cylinder 4 inserted into the cylinder 4 and rotating together with the cylinder 4. The nozzle body 5 is suspended so as to be able to move up and down independently of the nozzle body 5, the nozzle 6 is connected to the lower end of the nozzle body 6 and faces the furnace wall surface, and the pressure tank D is further connected to the upper end of the nozzle body 5 and described above. It consists of a refractory material supply hose 7, an added water supply hose 8, etc., which communicate with each other, and the detailed structure of each component will be explained below.

As explained above, the base 1, the furnace lid B, and the trolley 2 can be separated from each other, but when setting up the equipment, the base 1 and the trolley 2 are connected and transported suspended. is placed in a predetermined position on the furnace lid B, and the three parts are completely fixed using the fixing fitting 9 using the hook.

After that, the fixed relationship between base 1 and trolley 2 is solved, and base 1
The trolley 2 is made to be able to run freely along the rails 10 laid on top.

Note that the carriage 20 is driven by a motor 14 via a sprocket 12 provided on the axle 11 of the carriage 2 and a chino 13 hooked thereon.

Reference numeral 15 denotes a support guide installed upright at one end of the base 1, and a rolling pulley 1 provided on the trolley 2 is mounted on the guide surface on the back surface of the upper end of the support guide.
6 are in contact with each other, and the relationship between the two guides and supports the entire device.

The cylindrical body 4 is attached to the machine frame 3 with a bearing 11 containing a thrust bearing, and is rotated left and right by a drive mechanism consisting of a sprocket 18 fixed at the bottom, a chino 19 hooked to the sprocket 18, and a motor 20. I'm starting to get it.

This rotational movement is transmitted to the nozzle body 5 described above and changes the angle of the nozzle 6 with respect to the furnace wall surface.

The nozzle body 5 is inserted into the cylindrical body 4 and is coupled thereto in the circumferential direction, but is constructed so that it can operate independently in the vertical direction, and the circumferential coupling between the two is not shown in the figure. Although this is not the case, the purpose can be achieved by employing a mechanism such as a spline key within the cylinder 4.

The vertical movement of the nozzle body 5 is controlled by a drum 21 at its top end.
A rope 22 wound around is connected via a turning pulley 23,
It is configured to be carried out by letting out or winding up the rope 22.

Reference numeral 24 denotes a motor that controls the rotation of the drum 210. Furthermore, a reducer 25 is installed on the output shaft of the motor 24, and the rotation is transferred via a chino 26 to a bearing stand installed at the upper end of the device, that is, the top of the machine frame 3. Drive guide mechanism 2 installed in 2γ
8 and the refractory material supply hose 7 in relative position within the mechanism.
The guide wheel 29 that clamps the refractory material supply hose γ is rotated, and this rotation allows the refractory material supply hose γ to be smoothly moved in and out.

In other words, the refractory material supply hose 7 may be moved in and out in synchronization with the vertical movement of the nozzle body 5.
There are no particular limitations on the detailed configuration, as many design changes are allowed.

30 is a winding drum for the added water hose 8, and the delivery hole of the added water hose 8 may also be made to cooperate with the up and down movement of the delivery hole of the refractory material supply hose 7, that is, the nozzle body.

Since the lower end of the cylindrical body 4 is exposed to high temperatures, it is desirable to constantly supply and circulate cooling water inside the lower end.

The present invention has a structure as explained in the embodiment above, and when the device is set on the furnace lid, the left and right positions of the cart and the top and bottom positions of the nozzle body are determined, and then monolithic refractory material and added water are simultaneously supplied. Then, both are mixed and injected from the nozzle to begin repairing the furnace wall surface.

Then, the repair can be carried out by moving the nozzle body up and down and rotating the cylinder body and nozzle body.
These operations are automatically performed by commands from a remote location.

The distance between the nozzle and the wall surface is determined by the running function of the furnace lid, and in combination with the above operations, repairs can be carried out under optimal conditions. Spraying improves the adhesion rate by significantly reducing material bounce loss. It achieves high performance, safety, labor saving, etc.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall front view showing the mode of use, Fig. 2 is a front view of the device, and Fig. 3 is a second
The right side view in the figure and FIG. 4 are plan views. 1 is a base, 2 is a trolley, 3 is a machine frame, 4 is a cylinder, 5 is a nozzle body, 6 is a nozzle, 7 is a monolithic refractory material supply hose, 8 is an additive water hose, 9 is a fixing metal fitting, 10 is Rail 11 is the axle, 12 is the sprocket, 13 is the chain, 14 is the motor,
18 is a sprocket, 19 is a chino, 20 is a motor, 2
1 is a drum, 22 is a wire, 24 is a motor, 25 is a reducer, 26 is a chino, 28 is a drive guide mechanism, A is a soaking furnace,
B is the hearth.

Claims (1)

[Scope of utility model registration request] A base that is placed and fixed on the furnace lid, a dolly that is placed on the base and has the function of moving left and right, a machine frame assembled on the dolly, and a machine frame that is vertically supported by the machine frame and rotates. Cylindrical body with functions,
A nozzle body that is inserted into the cylinder and is suspended so that it can rotate together with the cylinder and move up and down independently, and has a nozzle connected to its lower end, a refractory material supply hose connected to the upper end of the nozzle body, and added water. An automatic spray repair device for the inner wall of a soaking furnace, which is equipped with a supply hose.