JPH0653109U - Steel fiber disperser - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to disperse steel fibers with high efficiency without human intervention. [Structure] A support beam member 4 is fixedly provided in a lower portion of a box-shaped container body 1 so as to cross the inside thereof, and a mesh member 8 formed in a middle-height shape so that both sides are bent downward is formed on the support beam member 4. The vibrating device 11 is attached to the upper part of the supporting beam member 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a steel fiber dispersion device for unraveling and evenly adding entangled steel fibers when manufacturing refractory materials, particularly steel fibers by blending castable fibers.

[0002]

[Prior art]

 Amorphous refractory such as castable has a thickness of 0.3 to 0.5 mm and a length of 30 to 40 mm in order to prevent cracking during construction and use and to improve durability. It may be made to add 2-3% by weight of steel fiber.

However, since the steel fibers are generally packed in a solid state, if they are put in as they are after being unpacked, they will not be mixed with the raw materials as they are in a lump forever, and they will become defective products, and they will be completely loosened. It takes a very long time to operate the mixer until it is evenly mixed into the raw material, resulting in poor productivity.

Therefore, as a conventional device for dispersing steel fibers, the steel fibers are put into a drum in which rods are horizontally mounted on the side plates, and the drum is rotated by a motor to disperse the solidified steel fibers. (Japanese Examined Patent Publication No. 53-11004) or a drum having a semicircular cross-section provided with long and short projections below the hopper to agitate to disperse the steel fibers (Actual Publication No. 59-41051). Gazette).

[0005]

[Problems to be solved by the device]

 However, the above-mentioned conventional apparatus has a problem that it cannot be made compact because the apparatus configuration is large and that the steel fiber is apt to be clogged in the drum, so that it is difficult to put it into commercial use.

In addition, regarding the relationship between the mixer and the feeding of the steel fiber, in the mixer that feeds out by rotating the blade, if the steel fiber is caught in the blade or the feeding speed (feeding amount) is too high, the The fibers will form a dumpling and will not be evenly blended in the raw material as if the feeding position was bad.

[0007] Therefore, finally, the operator has no choice but to unravel the blade by hand while visually checking the state of the blade rotation and the insertion position, and therefore when the steel fiber is inserted, the operator attaches it. In addition, the amount of time required for kneading was long because only small amounts could be dispersed and added, and even if gloves were worn, the steel fiber could get stuck in the hand, which was not an easy task.

In view of the above, the present invention has been made for the purpose of providing a steel fiber dispersion device capable of reliably and efficiently dispersing steel fibers without having to obtain them.

[0009]

[Means for Solving the Problems]

 As a means for solving the problems of the above-mentioned conventional techniques, the present invention is to fix a supporting beam member to a lower portion of a box-shaped container body so as to traverse the inside, and to support the supporting beam member so that both sides are downward. It is characterized in that a mesh material formed in a middle-height shape so as to bend is attached, and a vibrating device is installed above the support beam material.

[0010]

[Action]

 When steel fiber is put into the container body and the vibrating device is driven, the supporting beam member that supports the vibrating device vibrates, which causes the mesh material attached to the supporting beam member to vibrate. Due to this vibration, slight vibration is applied 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 surfaces on both sides of the mesh material. It is shaken and falls below it. Therefore, the steel fibers that fall from the lower part of the container body are almost monofilamentous, and if added to the raw material of the refractory, they are immediately mixed.

[0011]

【Example】

 The present invention will be described below with reference to the embodiments shown in the drawings.

As shown in the longitudinal section of FIG. 1, the section corresponding to the line AA of FIG. 1 and the plan view of FIG. 3, the container body 1 has a box shape whose upper and lower surfaces are open, It is made of a plate material having a high strength of about 4 to 5 mm and is formed to have a volume of, for example, a width of 400 × 450 mm and a depth of 400 mm. A cover 3 is attached to the upper opening of the container body 1 so as not to scatter when the steel fiber 2 is charged.

Below the inside of the container body 1, a steel strip-shaped support beam 4 is formed so as to traverse the inside thereof, and a supporting portion 5 is fixedly provided on the inner surfaces of the side walls 1 a, 1 a facing each other of the container body 1. , 5 are attached by bolts 7 directly or through an elastic body 6 such as rubber or a spring.

The center portion of 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, for example, expanded metal, and the diamond-shaped mesh 8 a is attached so that the longitudinal direction of the mesh member 8 a is parallel to the support beam member 4. When the container body 1 has the size described above, the mesh member 8 has curved surfaces 8b and 8b whose both sides are gently curved downward so that both ends thereof are lowered by about 25 to 30 mm from the center. It is formed in a middle height. As the mesh material 8, in addition to expanded metal, wire mesh having a square mesh, punching metal, or the like can be used.

A vibrating device 11 is mounted on the upper surface of the central portion of the support beam member 4. As the vibrating device 11, for example, a commercially available eccentric weight type vibrating device can be used, and a small device of about 75 W and a device of 3600 rpm (60 HZ) are used by being controlled by an inverter.

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

When about 10 to 20 kg of steel fibers 2 are put into the container body 1 at a time and the vibrating device 11 is driven, the supporting beam member 4 supporting the vibrating device 11 vibrates, and This causes the mesh material 8 to vibrate.

Due to this vibration, the steel fiber 2 received on the upper surface of the mesh material 8 is vibrated and rubs against the mesh 8a while gradually moving along the curved surfaces 8b, 8b on both sides of the mesh material 8. Is loosened by the mesh 8a, sieving by the mesh 8a, and falls below it. When the mesh material 8 is an expanded metal, the edge of the portion composing the mesh 8a stands up, so that the steel fiber 2 moving by vibration is caught on the edge and is satisfactorily disentangled. It

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

[0021]

[Effect of device]

 As described above, according to the present invention, since the structure is extremely simple, it can be manufactured in a small size and at low cost, can be easily attached to existing equipment, and is versatile. You can In addition, since there is no rotating member, the safety is high, and since the steel fibers can be evenly dispersed and put into the mixer, even if the kneading time is short, they are uniformly mixed, and the quality of the product is stable, and at the same time the production is performed. The property (kneading time reduced by about 30%) can be greatly improved.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view in a direction different by 90 °.

FIG. 3 is a plan view of the same.

[Explanation of symbols] 1 container body 2 steel fiber 3 cover 4 support beam member 5 support portion 6 elastic material 8 mesh material 8a mesh 9 dowel 11 vibrating device

Claims (1)

[Scope of utility model registration request] 1. A support beam member is fixed to a lower portion of a box-shaped container main body so as to traverse the inside thereof, and a mesh member formed in a middle-height shape so that both sides are bent downward is attached to the support beam member. A steel fiber dispersion device, wherein a vibrating device is installed above the support beam member.