JP2588437Y2 - Steel fiber dispersion device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel fiber dispersing device for unraveling and uniformly adding entangled steel fibers in the production of refractories, especially in the production of castables by blending steel fibers. .

[0002]

2. Description of the Related Art In order to prevent cracks during construction and use and to improve durability, castables and other irregular refractories have a thickness of 0.3 to 0.5 mm and a length of 30 mm.
In some cases, about 2 to 3% by weight of about 40 mm steel fiber is added.

[0003] However, since steel fibers are generally packed in a hardened state, if they are put in as they are after unpacking, they will remain in a lump and will not be mixed with the raw materials forever. It takes an extremely long time to operate the mixer until it is evenly mixed in the raw materials, resulting in poor productivity.

[0004] Conventionally, as an apparatus for dispersing steel fibers, a steel fiber is put into a drum in which a rod is attached to a side plate in parallel, and the drum is rotated by a motor to disperse the hardened steel fibers. (Japanese Patent Publication No. 53-11004) or a device in which steel fibers are dispersed by instigating a semicircular cross-sectional drum provided with long and short protrusions below the hopper (Japanese Utility Model Publication No. 59-41051). is there.

[0005]

However, in the above-mentioned conventional apparatus, it is difficult to reduce the size of the apparatus due to the large size of the apparatus. There is.

[0006] Regarding the relationship between the mixing of the steel fiber with the mixer, in the mixer fed by the rotation of the blade, if the steel fiber is caught in the blade or if the charging speed (input amount) is too high, the steel fiber may be dumped. When the charging position is poor, the mixture is in a dumpling shape and is not evenly mixed in the raw material.

[0007] In view of the above, there is no other choice but to finally release the hand by hand while checking the state of rotation of the blade and the insertion position with the eyes. In addition, the time required for kneading is long since only small quantities can be dispersed and charged, and even if gloves are worn, the steel fiber may be stuck in the hand, which is not an easy task.

In view of the foregoing, the present invention has been made to provide a steel fiber dispersing apparatus which can surely and efficiently disperse steel fibers without obtaining them.

[0009]

As a means for solving the above-mentioned problems of the prior art, according to the present invention, a supporting beam is fixedly provided across a lower part of a box-shaped container body. A mesh member formed to have a middle height so that both sides are bent downward is attached to the supporting beam, and a vibration device is installed above the supporting beam.

[0010]

When the steel fiber is put into the container body and the vibrating device is driven, the supporting beam supporting the vibrating device vibrates, whereby the mesh material attached to the supporting beam vibrates. I do. Due to this vibration, micro-vibration is given to the steel fiber received on the upper surface of the mesh material, and the steel fiber is loosened while moving gradually along the curved surface on both sides of the mesh material, and sieved by the mesh of the mesh material And fall below it. Therefore, the steel fibers falling from the lower part of the container main body are almost monofilament, and are immediately mixed when added to the raw material of the refractory.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 shows a longitudinal section, FIG. 2 shows a section corresponding to the line AA in FIG. 1, and FIG.
Has a box shape with open upper and lower surfaces and is made of a high strength plate having a thickness of about 4 to 5 mm.
It is formed to have a volume of about 50 mm and a depth of about 400 mm. The upper opening of the container body 1 has a steel fiber 2
A cover 3 is provided so that the cover 3 is not scattered at the time of loading.

Below the inside of the container body 1, a support member 5, which is made of steel and has a band-like support beam 4, which is fixed to the inner surfaces of the opposed side walls 1 a, 1 a of the container body 1 so as to cross the inside thereof. ,
5 is attached directly or with a bolt 7 via an elastic body 6 such as rubber or spring.

A mesh member 8 having a projection surface similar to the inner shape of the container body 1 is attached to the support beam member 4 with bolts 10, 10,.

The mesh member 8 is made of expanded metal, for example, and is attached so that the longitudinal direction of the rhombus-shaped mesh 8 a is parallel to the support beam member 4. When the size of the container body 1 is the above-mentioned size, the mesh member 8 is formed into curved surfaces 8b, 8b having both ends gently curved downward so that both ends are lowered by about 25 to 30 mm from the center. Is formed. As the mesh material 8, besides expanded metal,
A wire mesh having a square mesh, a punching metal, or the like can be used.

A vibration device 11 is mounted on the upper surface of the center of the support beam 4. As the vibrating device 11, for example, a commercially available eccentric weight vibrator can be used.
A small one of about W and 3600 rpm (60 HZ) is used by being controlled by an inverter.

Next, the operation of the above embodiment will be described.

When a steel fiber 2 of about 10 to 20 kg is put into the container body 1 at a time and the vibration device 11 is driven, the supporting beam member 4 supporting the vibration device 11 vibrates. As a result, the mesh member 8 vibrates.

By this vibration, vibration is given to the steel fiber 2 received on the upper surface of the mesh material 8,
While gradually moving along the curved surfaces 8b, 8b on both sides of the mesh material 8, it is loosened by rubbing with the mesh 8a,
It is sieved by the mesh 8a and falls below it.
When the mesh material 8 is an expanded metal, the edge of the portion constituting the mesh 8a stands, so that the steel fiber 2 moving by vibration is hooked on the edge and loosened well.

Therefore, the steel fiber 2 that falls to the lower part of the container body 1 is in the form of a single fiber, and can be uniformly mixed in a short time if it is put into a refractory material and kneaded. Further, if the mixture is directly charged into the mixer from the lower portion of the container body 1, the mixture can be uniformly dispersed from the entire lower surface of the container body 1.

[0021]

[Effects of the Invention] As described above, according to the present invention, the structure is extremely simple, so that it can be manufactured at a small size and at low cost, can be easily mounted on existing equipment, and has a general purpose. Can be rich. In addition, since there is no rotating member, the safety is high, and the steel fiber can be evenly dispersed and put into the mixer even if the kneading time is short, so that the product quality is stable and the production is stable Properties (kneading time reduced by about 30%) can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view in directions different from each other by 90 °.

FIG. 3 is a plan view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container main body 2 Steel fiber 3 Cover 4 Support beam material 5 Support part 6 Elastic material 8 Mesh material 8a Mesh 9 Pay 11 Excitation device

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B28C 5/40 B28B 17/02

Claims (1)

(57) [Scope of request for utility model registration] 1. A supporting beam member is fixedly provided at a lower portion of a box-shaped container main body so as to cross the inside thereof, and a mesh member formed to have a middle height so that both sides are curved downward is attached to the supporting beam member. A vibrating device is installed on the upper part of the supporting beam material.