JPS6335358Y2 - - Google Patents

Description

[Detailed explanation of the idea]

The present invention relates to a multi-tank spraying machine used for spraying monolithic refractories, and particularly to improvements in its material discharge mechanism. When spraying repair of monolithic refractories, it is most rational to change the material for each repair area and use a spray material that matches the cause of the damage.This will reduce the basic unit of spray repair. Also connected. For example, in the repair of electric furnaces, as shown in Table 1 below,
When repairing immersion pipes and reflux pipes of RH degassing tanks, it is advantageous to change the material of the spraying material for each repaired area, as shown in Table 2 below.

【table】

[Table] The applicant previously proposed a multi-tank spraying machine that can selectively discharge two or more types of spraying materials (see, for example, Japanese Utility Model Publication No. 58-6810). However, although this multi-tank spraying machine can switch and supply a single material, it does not have the ability to mix and supply two or more spraying materials at any selected mixing ratio. Therefore, it could not be applied to the uses shown in the table above. The present invention is an improvement of this type of spraying machine so that it can not only switch between single materials but also mix and discharge two or more spraying materials in any ratio. An embodiment of the present invention will be described below with reference to the accompanying drawings. In the figure, 1 is a multi-tank spraying machine, and as is clear from FIG.
1, three material tanks 1a, 1b and 1c
It is divided into In FIG. 1, reference numeral 12 denotes a material supply hopper with a cone valve 13 provided at the upper end of each material tank 1a, 1b, and 1c. On the other hand, a table feeder type material cutting device 2 is provided at the bottom of each of the material tanks 1a, 1b, and 1c. The material cutting device 2 has a material tank 1a, 1b or 1, as shown in detail in FIGS. 2 and 4.
An annular chamber 17 is formed between the turntable 21 that closes the lower end opening 15 of the lower hopper part 14 of c and the lower vertical side wall 16 of the lower hopper part 14 that is projected upward from the center of the turntable 21.
As the table 21 rotates, the spraying material rotates together with the turntable 21 in the annular chamber 17.
It is composed of cutting blades 23 that are successively cut out to the outside from a discharge port 18 (see FIG. 4) provided in the. The spray material individually cut out from such a cutting device 2 falls into a common discharge chamber 3, from where it passes through a discharge port 31 and is sent to a spray nozzle device (not shown) in a conventional manner. It is pumped through. In FIG. 1, 4 is an air injection nozzle for pressure feeding. A variable speed motor 5 with a speed reduction device 51 is separately provided for each of the cutting devices 2 provided individually in the material tanks 1a, 1b, and 1c. By operating the variable speed motor 5 and appropriately selecting the rotation speed of the turntable 21 of the cutting device 2, each tank 1
An arbitrary cutting amount can be obtained for each of a, 1b, and 1c. In the multi-tank spraying machine of the present invention, each of the material tanks 1a, 1b, or 1c is equipped with an individually controllable table feeder type material cutting device 2. By driving one cutting device 2 and keeping the others stopped, the purpose of cutting out a single material can be achieved. Also selected two or more cutting devices 2
By simultaneously driving the ..., the purpose of cutting out the composite material can be achieved.At this time, by individually controlling the rotation speed of the cutting devices 2..., an arbitrary mixing ratio can be obtained, and the blowing can be carried out according to the repaired area. The material of the attachment material can be set arbitrarily. In this way, the multi-tank spraying machine of the present invention can not only alternately supply a single material, but also alternately supply composite materials mixed at any mixing ratio so that the material is suitable for the repaired area. can be achieved at the same time, and is extremely useful when applied to the repair of repaired areas as shown in Tables 1 and 2 mentioned above.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway front view thereof, FIG. 2 is a vertical sectional view showing the internal structure of the lower part of FIG. 1, and FIG. 4 is a sectional view taken along the line. FIG. 4 is a sectional view taken along the line. In the figure, 1 is a multi-tank spraying machine, 2 is a table feeder type cutting device, 3 is a discharge chamber, 4 is an air injection nozzle, 5 is a variable speed motor, and 51 is a speed reducer.

Claims (1)

[Scope of utility model registration request] In a multi-tank spraying machine, in which the interior is divided into multiple material tanks by partition walls, and the spraying material in each tank is switched and discharged as appropriate, a table feeder is installed at the bottom of each tank. 1. A multi-tank spraying machine for refractories, characterized in that it is equipped with a material cutting device of the same type, and is configured such that the rotational speed of the cutting device can be changed individually.