JPS6335349Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to improvement of an ore feeding device for quantitatively feeding raw materials or ore, and more specifically, to measures against wear of the raw material feeding drum of the ore feeding device. It is something.

[Prior art] An example of an ore feeding device for continuously supplying a fixed amount of ore as a raw material in a sintering device or other device is shown in the eighth example.
(side view) and FIG. 9 (front view). The raw material ore transported by the transport device located above is put into the hopper 1 and temporarily stored. The ore that falls below the hopper 1 passes through a chute 2 that adjusts the thickness of the raw material cut out, and the amount of raw material cut out is adjusted by the drum feeder 3, and then passes through the deflector plate 5.
The ore is guided by the pallet 6 and fed by the pallet 6. Note that 4 is a motor that drives the drum 3, and 7 is a frame that supports these components.

The part of this ore feeding device that comes into contact with the ore is
Continuous passage of raw material ore causes significant wear.
Therefore, as a countermeasure against wear, a liner is attached to the contact surface with the ore to protect the main body and replace the worn liner in a timely manner.

Among the anti-wear liners, the mounting surfaces of the hopper 1, the chute 2, and the deflector plate 5 are flat, so the liners can be easily mounted and removed without any problems. However, since the drum feeder 3 has a cylindrical shape, it is very difficult to attach and remove the liner. Therefore,
The conventional drum body 3b has no liner, as shown in Fig. 7, by giving up on installing the liner.
Or, as shown in Figure 6,
There is a structure in which a long cylindrical liner 3c is fitted into the drum body 3b and fixed at both ends with countersunk bolts 3d.

[Problems] However, in the case where the liner shown in FIG. 7 is not attached, if wear occurs, the entire drum body 3b must be replaced, resulting in a large loss. Furthermore, in the case where a liner as shown in Fig. 6 is attached, if the liner 3c becomes worn due to use, the liner 3c must be replaced, but in order to remove and attach the liner 3c from the drum 3b, , the drum 3b must be removed from the ore feeding device. To do this, the chute 2 and its surrounding members and equipment must be removed. Such ancillary work for replacing the liner 3c requires a large amount of man-hours and time, resulting in a decrease in operating efficiency and an increase in costs.

[Purpose of the invention] In order to eliminate such inconveniences, the purpose of this invention is to easily replace the liner of the drum of the ore feeding device without requiring the above-mentioned incidental work. The objective is to realize a drum and liner structure that allows for

[Structure of the invention] In order to achieve this object, this invention provides a drum feeder of an ore feeding device that adjusts the amount of raw material supplied, in which one or more grooves are provided in the axial direction of the cylindrical outer peripheral surface of the drum body of the drum feeder. The drum body is characterized in that a wear-prevention liner is attached to the outer circumferential surface of the drum body, the liner being divided into circumferential and axial directions and having a coupling mechanism that fits together within the groove.

[Operation] In the drum feeder according to this invention having the above structure, the wear-prevention liner is attached to the drum body, so that wear of the drum body can be prevented. This anti-wear liner is attached to the outer peripheral surface of the drum by being bonded within a groove provided in the axial direction of the surface of the drum body, so that the liner bonding portion does not appear on the outer surface. Therefore, there is no fear that the liner joints will wear out, and the joints can be provided over the entire axial length of the drum. Therefore, the liner can be divided into cylindrical liners of arbitrary length by inserting a dividing line in the circumferential direction and dividing the liner in the axial direction. Therefore, when the liner is worn out and needs to be replaced, it is possible to loosen the liner joint in the groove of the drum body and remove each liner separately, and when installing a new liner. Can also be installed individually.

As a result, when replacing the liner, it is not necessary to remove the drum body, and additional work such as removing and attaching the chute etc. can be made unnecessary.

[Example] This invention will be described below with reference to the illustrated example. Figure 1 (longitudinal sectional view) and Figure 2 (horizontal sectional view)
shows an example of this invention. 3 to 5 show other embodiments.

The main component of the drum feeder of the ore feeding device is a drum body 3b attached and assembled to a drum shaft 3a. In this drum feeder, a liner 3f is attached to the outer peripheral surface of the drum body 3b in order to protect the drum surface from wear. For its attachment, the drum body 3b is provided with a recessed material 3e so as to form two grooves in the axial direction of the drum surface.

The liner 3f attached to the drum surface is cut into rings in the circumferential direction and divided in the cylindrical axial direction. Further, the drum is divided into two halves in a semicircle so as to be joined by two grooves 3e, and inward flanges 3h for joining are provided on both side edges of each piece.

This subdivided liner 3f is transferred to the drum body 3b.
Place the liner flange 3h over the drum body groove 3.
The liner 3f is fastened to the outer surface of the drum body 3b by fitting the liner 3f within the drum body 3b and tightening it with the bolt 3g.

With the above configuration, the liner 3f is attached to the drum body 3b without exposing the joint part on the surface, so the liner 3f completely protects the drum body from wear during operation of the drum feeder of the ore feeding device. be able to.

When replacing liner 3f, use bolt 3g.
If it is not possible to remove the liner 3f by loosening it, remove the stopper 3j provided at the end of the drum, move the liner 3f in the axial direction, and remove the drum body 3b at a location where it has come off. The cutting size of the liner 3f is determined by the width of this removal space.

The procedure for installing a new replacement liner 3f can be performed in the reverse order.

In a conventional drum feeder, the liner 3c was attached with a countersunk bolt 3d, making it impossible to separate the liner, but in the drum feeder of this invention, the liner is joined in a groove provided over the entire axial length. Therefore, the liner 3f can be divided. Therefore, as mentioned above, when replacing the liner 3f, there is no need to temporarily remove the drum body 3, chute 2 or hopper 1, part of the pedestal 7, etc. as in the conventional case, and these parts and equipment can be replaced. The liner 3f can be replaced in the assembled state, and since it is divided into small parts, it is easy to work in a narrow space. Therefore, the working time and man-hours for liner replacement can be reduced.

FIG. 3 shows another embodiment in which the split liner connection is hinged. FIGS. 4 and 5 show still another embodiment, in which the liner connection portion is at one location.

The case where the liner is connected to one or two places has been explained above, but it is also possible to provide three or more liner connection points.
If a large number of drums are provided, the manufacturing cost of the drum will be high, but the liner replacement work will be easier.

[Effects of the invention] As explained above, according to this invention, by applying a liner to the surface of the drum body of the drum feeder of the ore feeding device, the drum can be protected from wear. Furthermore, since the liner is divided and joined together within the groove, additional work can be omitted when replacing the liner. Therefore, the time and man-hours required for replacement work can be significantly reduced.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the first embodiment, and Fig. 2 is a longitudinal cross-sectional view of the first embodiment.
3 is a cross-sectional view of the second embodiment, FIG. 4 is a cross-sectional view of the third embodiment, FIG. 5 is a cross-sectional view of the fourth embodiment, FIG. FIG. 7 is a longitudinal sectional view of a conventional example, and FIGS. 8 and 9 are a side view and a front view of the ore feeding device. In the figure, 3 is a drum feeder, 3b is a drum body, 3e is a grooved material, 3f is a liner, 3g is a bolt, and 3h is a flange.

Claims (1)

[Scope of utility model registration request] In a drum feeder of an ore feeding device that adjusts the supply amount of raw materials, one or more grooves are provided in the axial direction of the cylindrical outer peripheral surface of the drum body of the drum feeder, and the grooves are divided into circumferential and axial directions and are fed together within the grooves. 1. A drum feeder comprising: a wear-prevention liner having a coupling mechanism attached to the outer peripheral surface of the drum body.