JPH0735953B2 - Irregular refractory construction equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for constructing an irregular refractory, and more particularly to an apparatus for pouring an irregular refractory into a molten metal container with excellent work efficiency. The vacuum degassing tank, the container such as the tundish, etc., can be widely used for the work of inserting an unshaped refractory material into a container containing hot metal or molten steel.

[0002]

2. Description of the Related Art When an amorphous refractory is applied to a molten metal container, a mold (also referred to as a core) is placed at a predetermined position of the container, and a refractory is placed between the mold and the permanent refractory. Recently, so-called pouring construction, in which a fixed refractory is poured to form a construction body, has been widely practiced.

Regarding casting of irregular-shaped refractory,
Various techniques have heretofore been disclosed. For example, Japanese Patent Publication Sho 51-
21363 is a method in which an amorphous refractory is kneaded with vibration in advance to form a high-density mud, which is poured into a container, and then vibration is added to fill the container.

Further, Japanese Examined Patent Publication No. 61-2870 is a distributor for use in the work of inserting an indeterminate refractory material, in which a swirl shout is provided on the top of the conical distributor. But,
Even though these technologies require large equipment,
This is related to a part of the process of pouring construction, and it is hard to say that the reduction of the work man-hours and the improvement of the work environment commensurate with the installation of these large-scale devices are left.

Further, Japanese Utility Model Laid-Open No. 63-60894 is designed to automate the pouring work by installing a casting device and a vibrator for indefinite refractory material so as to be vertically movable.
However, since these are improvements of only a part of the pouring construction process, when the material handling is the conventional 25 kg paper bag or the 500 kg flexible container, the receiving of these paper bags and the flexible container,
The handling, empty bag processing, etc. inevitably occur, and it is extremely difficult to achieve a fundamental number-saving, time-saving, resource-saving and improvement of working environment in the overall construction process. Is.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to continuously, automate, and seal the material handling after receiving the material without causing dust generation. It is an object to provide an apparatus for constructing an irregular-shaped refractory that allows all the pouring work to be performed by a person.

[0007]

According to the present invention, not only the pouring work is improved but also the material is received in order to reduce the number of workers, the time, the resource and the working environment by improving the equipment for the pouring work. The improvement is taken into consideration throughout the entire process from filling to pouring.

The gist of the present invention is as follows. That is, in a casting device for casting an amorphous refractory into a molten metal container, a container warehouse for accommodating a container for an amorphous refractory material, a container transfer device for receiving and delivering to the container warehouse, and the dispensed container An unsealing refractory material in the open unsealing weighing device for unsealing and weighing, a sealed conveyor for transporting the cut out material to a kneading device, a kneading device for kneading the transported material by mixing water, A water supply device that supplies water to the kneading device, a transport conveyor that transports the water-containing material to a pouring device, a pouring device that pours the transported water-containing material into a lined portion of a molten metal container, and the molten metal container A height measuring device for measuring the height of the upper surface of the work body formed by pouring into the kneading machine, and the water supply amount in the kneading device and A control device for adjusting the cut-out amount of the unsealing weighing device based on the measured value of the height measuring device and a control operation of each device, and an apparatus for constructing an indefinite refractory, characterized by comprising: is there.

The details of the present invention will be described with reference to the embodiments shown in the accompanying drawings. 1 is an overall view showing an apparatus of the present invention, FIGS. 2, 3, 4, and 5 are partially enlarged views of FIG. 1, and FIG.
Material part, FIG. 3 is a kneading part, FIG. 4 is a pouring construction part, and FIG. 5 is a control part. A container warehouse 4 for accommodating a large number of containers 2 of amorphous refractory materials of different types is provided, and the containers 2 are received from the outside by a container transfer device 6 and delivered to an open weighing device 8. The unsealing weighing device 8 includes a sealed pedestal 10 having a built-in load cell and an unsealing device 12.
The container 2 is opened in a sealed state and weighed by a load cell to cut out a fixed amount.

A closed conveyer 14 is provided downstream of these, and the cut-out material for irregular shaped refractory material can be transported to the kneading device 16 in a sealed state.

The kneading device 16 is provided with a water tank 20 for supplying water through a shutoff valve 18 and a gate 22 for discharging water-containing material. In addition, a transportation conveyor 26 is provided for transporting the discharged water-containing material to the swivel shelter 24 for pouring.

The swirl shout 24 is provided above the molten metal container 28 and the mold 30, and is further provided with a height measuring device 34 for measuring the height of the upper surface of the work body 32 formed by pouring. In FIG. 1, a mechanical type is shown as the height measuring device 34, but not limited to this, an ultrasonic type,
A laser beam type or a microwave type may be used. A vibrating device 36 that applies vibration is attached to the inside of the mold 30.

Further, as a control device, a micro computer 38, an operator terminal 40, a printer 42
The load cell of the closed pedestal 10 and the measured value of the height measuring device 34 are input to the microcomputer 38, and the shutoff valve 18 and the gate 22 for supplying water to the unsealing device 12 and the kneading device 16 and the vibrating device are provided. The operations of 36 and the like are all controlled by the micro computer 38.

As described above, the embodiment of the device of the present invention is as follows.
It is roughly divided into departments. (A) Material section Container warehouse for irregular refractory materials 4 Container transfer device 6 Opening and weighing device 8 for quantitatively cutting the material in the container while opening and weighing it (B) Kneading section Sealing for transporting the cut material to the kneading device 16 Conveyor 14 Kneading device 1 having water supply device
6 (C) Pour-in construction part Transport conveyor 26 for transporting the kneaded water-containing material to the pour-in device Construction body 32 of the water-containing material
Swivel chute 24 for pouring into (D) Control unit of the upper surface height measuring device 34 of the work body 32 formed, the water supply amount in the kneading device 16 and the cutout amount of the unsealing weighing device 8 based on the upper surface height measurement value. Adjustment and control operation of each device.

[0015]

The operation of the apparatus for constructing an indefinite refractory material of the present invention having the above construction will be described. The amorphous refractory material is sealed in the container 2 and stored in a designated address of the container warehouse 4 by a transfer device 6 in response to a command from the microcomputer 38, and no manpower is required during this period.

When a command for cutting out material is issued from the micro computer 38, the container transfer device 6 takes out a predetermined container 2 and transfers it to the hermetically sealed pedestal 10.
Next, a sealed pedestal 10 with a built-in load cell and an opening device 1
2 and the closed conveyor 14 operate in conjunction with each other, and a predetermined material is accurately weighed by the load cell, transported by the closed conveyor 14 without emitting dust, and put into the kneading device 16. In the kneading device 16, a proper amount of water is added from the water tank 20 through the shutoff valve 18 to perform sufficient kneading.

The kneaded water-containing material is flowed through the gate 22 and the transportation conveyor 26 to the lined portion composed of the container 28 and the form 30 by the swirling shout 24, and then further poured. The generated water-containing material is made uniform by the vibration device 36 and the packing density is improved. The height of the upper surface of the poured construction body 32 during construction is measured by the height measuring device 34, and the measured value is input to the micro computer 38.

When casting an indefinite refractory material into the molten metal container 28, for example, in the molten steel portion of the side wall of the molten steel ladle which is in direct contact with the molten steel, and in the slag line portion where the contact time with the slag is long, the refractory material is melted. Different speeds are common. Therefore, different types of refractories are to be installed in the molten steel part and the slag line part. Since construction of different types of refractories in these two parts must be performed with strict distinction,
For that purpose, it is important to measure the height of the upper surface of the construction body. The measured value of this height is the computer 3 that controls the entire system.
8, the remaining amount of work is instructed so as to satisfy the difference value from the preset height, and the next cutout command is issued.

Based on this cut-out command, the sealed pedestal 1
The load cell of 0 and the unsealing device 12 are interlocked with each other to perform all the work of a predetermined construction body. Also, in the case of changes in the kneading amount and changes in the refractory brand, follow this,
Similarly, the amount of water to be added based on a command from the microcomputer 38 is injected from the water tank 20 into the kneading device 16 via the shutoff valve 18. The apparatus according to the present invention allows the operator 1 to operate the operator terminal 40 from the cutting of the material for the construction of the irregular refractory to the pouring of the material.
It can be done by people. Also, a container 2 for storing refractory materials,
Unsealing device 12, sealed pedestal 10 and sealed conveyor 14
Since the work is performed in a sealed state, environmental pollution due to dust can be completely prevented.

[0020]

EXAMPLE As shown in Table 1, the apparatus of the present invention was used to pour 20 tons of irregular shaped refractory material into a ladle for construction. For comparison, the same amount of irregular refractory material was poured into the same ladle using a conventional device. The construction time and construction efficiency are shown in Table 1 at the same time.
The construction efficiency is an index showing work efficiency by a value obtained by dividing the construction weight by the number of construction persons and construction time.

[0021]

[Table 1]

As is apparent from Table 1, in the conventional example, the work amount of two persons is 2 hours (construction efficiency = 2.5 t / person × hour), whereas in the embodiment of the present invention, one person is 1.5 hours. It is the work amount of time (construction efficiency = 13.3 people / hour). Even in the conventional example, the pouring work itself can be performed by one person, but it takes a lot of man-hours for receiving and handling the material. On the other hand, in the present invention, since the acceptance of materials, the handling and the monitoring of the construction state are continuous and automated,
With the minimum number of people, and the loss time associated with manual work was greatly reduced, the construction efficiency could be improved to about 5 times that of the conventional example.

Further, since a flexible container is used in the conventional example, it is impossible to avoid generation of dust due to opening during material handling. However, in the present invention, such dust is not generated and the working environment is greatly improved. It was Further, as a matter of course, no difference in the service life between the ladle of the present invention and the conventional example was found.

[0024]

As is apparent from the above embodiments, the present invention provides a container warehouse for a refractory of an irregular size, a container transfer device,
By providing an open-weighing device, a sealed conveyor, a kneading device, a swivel shed, a height measuring device for the construction body, and a control device for these devices, the material handling after receiving the material is made continuous, automated, and sealed so that dust is collected. One operator can perform pouring work without any occurrence, the desired purpose is achieved in a small number of people in a short time, the work efficiency is more than 5 times that of the past, and the work environment is further improved. I was able to.

[Brief description of drawings]

FIG. 1 is a sectional view showing an entire system of an apparatus for constructing an irregular refractory material according to an embodiment of the present invention.

FIG. 2 is an enlarged partial sectional view showing a raw material portion of FIG.

FIG. 3 is an enlarged partial sectional view showing a kneading section in FIG.

FIG. 4 is an enlarged partial sectional view showing a pouring construction portion of FIG. 1.

5 is an enlarged partial sectional view showing a control unit of FIG. 1. FIG.

[Explanation of symbols]

 2 ………… Container 4 ………… Container warehouse 6 ………… Container transfer device 8 ………… Opening weighing device 10 ………… Sealed pedestal with built-in load cell 12 ………… Opening device 14 ………… Sealed conveyor 16… ...... Kneading device 18 ………… Shut-off valve 24 ………… Swing short 26 ………… Transporting conveyor 28 ………… Molten metal container 34 ………… Height measuring device 38 ………… Mankuro Computer

Front Page Continuation (72) Inventor Toyohide Yamaguchi 1-chome, Kawashima-dori, Mizushima Kurashiki-shi, Okayama (No street number) Kawasaki Furnace Co., Ltd. Mizushima Plant

Claims (1)

[Claims] 1. An apparatus for pouring an amorphous refractory material into a molten metal container, a container warehouse for accommodating a container of an amorphous refractory material, a container transfer device for receiving and delivering the container to the container warehouse, and the delivery. An unsealing and weighing device for unsealing and cutting out the unshaped refractory material in the container, a sealed conveyer for transporting the cut out material to a kneading device, and a kneading for kneading by mixing water into the transported material A device, a water supply device that supplies water to the kneading device, a transportation device that transports the hydrous material to a pouring device, and a pouring device that pours the transported hydrous material into a lining portion of a molten metal container,
A height measuring device for measuring the upper surface height of the work body formed by being poured into the molten metal container, and a cutout amount of the unsealing weighing device based on the measured value of the water supply amount and the height measuring device in the kneading device. And a control device for performing the adjustment operation of each device and the control operation of each device described above.