JPS5855964Y2 - Spraying construction machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a spray construction machine, which creates an effective cross-contact condition by adding water and kneading just before spraying, and sets the spraying conditions and kneading pressure feeding conditions separately with a simple and compact configuration. The object of the present invention is to provide a new spraying machine that enables continuous and preferable spraying.

A manual method commonly used in the past for lining or coating refractory materials, heat insulating materials, release materials, reactive materials, etc. used in metallurgical equipment such as ladles, electric furnaces, converters, cylindrical equipment such as chimneys, etc. In place of this method, some proposals have already been made by the inventors of the present invention regarding a spraying machine for spraying construction. Uniform and efficient lining construction can be achieved by ejecting refractory material etc. from the circumference and spraying it onto the wall surface, and it has excellent properties such as being able to form a dense lining structure due to the spraying pressure etc. It has a sexual nature.

However, in the conventional general method, materials that have been mixed with water in a hopper are pumped and sprayed, so even if construction can be carried out in a more efficient manner, once the material has been charged into the hopper, It is necessary to spray the entire amount of materials, and of course it is necessary to vote in batches.

For this reason, some proposals have been made to add water from outside at the cross-conducting section, but the flow of materials in the cross-conducting section obstructs the addition of water, making it impossible to add water effectively.

In addition, since the above-mentioned pressure-feeding kneading mechanism and spraying mechanism are operated by the same driving source, it is not always possible to obtain favorable pressure-feeding mixing conditions and spraying conditions for each spraying. There are disadvantages such as

This project was devised through research to eliminate the disadvantages of the conventional methods as described above, and its implementation is shown in the attached drawings. Appropriate support legs etc. are arranged in the radial direction on the circumferential side so as to approximately coincide with the central axis position, or the support legs are suspended using a crane etc. using the hanging material 11 and raised and lowered as appropriate. A hopper 1, which is operable and adapted to receive material under suitable dry conditions from a loading port 12, is constricted at its lower part to form a passage 2 through which a rotary plate is arranged vertically. A pressure feeding mechanism 4 using a screw mechanism or the like and a ribbon-like mixing mechanism 5 are arranged in the passage 2 to constantly feed and knead the material supplied to the impeller 3. A driving source 10 such as a motor is provided at the upper part of the hopper 1 to drive the pumping mechanism 4 and the kneading mechanism 5 as described above. Another drive source 9 for rotation and arranged outside the passage 2 as described above.
The impeller 3 is rotated through the gears 18 and 19, and the above-mentioned cross-talk mechanism 5 has a support member for supporting the ribbon-like cross-wire member disposed in a spiral shape, as shown in FIG. Using a plurality of pipe materials 15,
Water is supplied to these pipe materials through piping 8, and each pipe support member 15 is provided with a downward water discharge hole 16, as shown partially cut away in FIG. .

Reference numeral 6 is a suspension part, and as described above, the proposed mechanism is suspended at the center position of the equipment to be constructed using a crane or other means, and 7 is a cover member. The piping or wiring for each motor as described above and the piping 8 are housed inside, and these piping and wiring are protected from the high heat conditions of the metallurgical equipment as described above so that work can be carried out. .

Rotation by a drive source 10 such as a motor is transmitted to the cylinder 14 of the above-mentioned pumping mechanism 4 and kneading mechanism 5 through the rotation shaft 11 in the protection cylinder 12, and the inner hole 14a of the cylinder 14
As shown in the figure, water can be supplied to the pipe material 15 as described above.

A radial discharge plate 13 is disposed around the circumference of the impeller 3 and discharges the material supplied therein.

It is clear that when using the present invention as described above, the sprayed material charged into the hopper 1 is in a dry state,
This material is cut out in proportion to its rotational speed by the Scrico type pumping mechanism 4, and then kneaded while adding water in the mixer mechanism 5 below, and immediately thereafter charged into the impeller 3. It will be released.

It is clear that the water-mixed material can be sprayed immediately, and new spraying material is replenished into the hopper 1 as needed, making continuous spraying possible.
Specifically, it is now possible to continuously perform spraying until the required layer thickness is formed on the target furnace body and other equipment. Efficient construction without repeating batch-like operations in which a certain amount is charged and sprayed after mixing, and without leaving water-mixed materials in the hopper after the desired spraying is completed. However, since water is added to the inside of the mixing mechanism 5 by the plurality of pipe-shaped supports 15 that attach the kneading mechanism 5 to the shaft tube 14 during mixing, accurate and smooth water addition is possible. Moreover, since the drive source 9 that drives the impeller 3 and the drive source 10 that operates the pumping mechanism 4 and the kneading mechanism 5 are each different, the pumping mixing conditions and the spraying conditions are set separately. , it is possible to obtain spraying that is suitable for each construction condition, and from this point of view as well, it has the effect of being able to carry out construction that is advantageous, and is a device that has great practical effects.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of the spraying device according to the invention, Fig. 2 is a perspective view of its impeller drive mechanism, and Fig. 3 shows its pumping mechanism and FIG. 3 is a partially cutaway side view of the kneading mechanism. In these drawings, 1 is a hopper, 2 is a passage, 3 is an impeller, 4 is a pressure feeding mechanism, 5 is a kneading mechanism, 6 is a suspension part, 8 is piping, 9 and 10 are respective driving sources such as motors, 11 is a rotating shaft, 13 is a discharge plate, 14 is a shaft cylinder, 15 is a pipe support material, and 16 is a discharge hole thereof.

Claims (1)

[Scope of utility model registration request] An impeller is connected to the lower part of the hopper via a shaft cylinder, and the material stored in the hopper is sequentially sent to the impeller part through a passage, kneaded under pressure in the passage, and sprayed by the impeller. A pressure feeding mechanism and a kneading device are disposed in the shaft cylinder, and the mixing mechanism is supported by a plurality of pipe supports, and downward water discharge holes are formed in the pipe supports, and water is introduced into the shaft cylinder. The spraying machine is configured to add water and knead the water into the central part of the cross-talk mechanism part through the water discharge hole, and to operate the above-mentioned pressure feeding or cross-conduction mechanism and the impeller by separate drive sources.