JPH0354394Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a chute and a guide plate for a sintering machine ore feeding device for iron-making machinery products.

[Conventional technology]

In FIGS. 4 and 5, the sintered raw material 1 stored in the main raw material hopper 2 contains 5 to 7% moisture.
Therefore, the sintering raw material 1 is cut out by the rotation of the roll feeder 3, and flows directly from the roll feeder 3 to the chute 5, or flows from the roll feeder 3 to the chute 5 via the guide plate 4, and the raw material 1 is charged into the pallet 6. At this time, the sintering raw material 1 is deposited 1A on the surfaces of the guide plate 4 and the chute 5 due to unevenness locally or over the entire surface. Due to this adhesion 1A, the flowing raw material is greatly disturbed and drifts, and as a result, the raw material is charged unevenly in the width direction of the pallet 6 as shown in FIG. 5, making it difficult to produce sintered ore of uniform quality. In many cases, this had an extremely negative impact on operations.

As a method to improve this problem, a method is known in which a ceramic liner is attached to the chute 5.
However, in this method, as shown in FIG. 6, the ceramic liner 11 is usually in the shape of a 10 to 100 mm square tile, so the base plate 10 is generally used as a substrate and an adhesive 12
The liner is pasted with the bolt 1 as a single liner.
3 to the guide plate 4 or chute 5, but all the ceramic liners 11 on the adhesive solution are not installed on the same plane, and sometimes there are differences in level between adjacent parts, and dents at the joints. Due to the difference in materials between the ceramic liner 11 and the adhesive 12, sintering raw materials still adhere to and grow from these joints.

[Problem that the invention attempts to solve]

According to the conventional apparatus as described above, in any of the formats shown in FIGS. 4, 5, or 6, the sintering raw material adheres to the surface of the guide plate or chute, and this adhered substance grows to prevent the sintering raw material from being uniformly distributed. As a result, the permeability of the sintered raw material on the pallet becomes uneven, which causes problems such as hindering the production of sintered ore of uniform quality.

As a means of solving the above problems, periodically scrape the top of the chute 5 with a cleaner, for example at intervals of 200 to 100 times per 24 hours with a steel liner or 50 to 15 times per 24 hours with a ceramic liner. method is known.

However, such a method has problems such as high frequency of scraping, difficulties in liner surface processing, disadvantages in terms of maintenance, and problems that cannot be said to be economical in terms of operation.

Also, according to the device shown in FIG.
Alternatively, the liner structure that is attached to the guide plate 4 by bolts 13 includes the substrate 10 + adhesive 12 + ceramic liner 11, and the ceramic liner 11 is used in the form of a 10 to 100 mm square tile. For example, if a liner with an area of 4,000 mm width and 1,800 mm length is used with 100 mm square ceramics, 720 pieces of affixing work will be required, and the flatness will need to be adjusted for each piece, making the work extremely complicated. A problem arises.

[Means for solving problems]

As the liner for the sintering machine ore feeding device, an ultra-high molecular weight synthetic resin (such as ultra-high molecular weight polyethylene), which has extremely low water absorption and friction coefficient and high wear resistance, is used.

[Effect]

By installing an ultra-high molecular weight resin liner with very low water absorption and wear coefficient on the surface of the chute or guide plate, and each liner material having a large area, the adhesion of sintering raw materials is reduced and the sintering raw materials are Fall smoothly.

〔Example〕

An embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a side view of the invention, Fig. 2 is a partially enlarged cross-sectional view of the chute or guide plate of the invention, and Fig. 3 is a cross-sectional view showing the connecting part of the liner. be.

As shown in Figures 1 to 3, the guide plate 4
Alternatively, the ultra-high molecular weight resin liner 7 or 8 is attached to the upper surface of the chute 5 with bolts 9, respectively.

If the area of the ultra-high molecular weight resin liner 7 or 8 is large enough to fit on the guide plate 4 or chute 5 with one piece, install it as shown in Figure 2, but if it cannot fit with one piece, install it with two pieces as shown in Figure 3. Attach more than one sheet in succession.

Next, the operation will be explained. When the sintering raw material 1 is charged into the main raw material hopper 2 and cut out by the roll feeder 3, it is first flowed down onto the guide plate 4, and then flowed down to the chute 5 and fed into the pallet 6. Ru. At this time, since the ultra-high molecular weight resin liners 7 and 8 are attached to the surfaces of the guide plate 4 and the chute 5, the sintering raw material 1 flows down smoothly.

[Effect of idea]

An ultra-high molecular weight resin liner with very low water absorption and abrasion coefficient and each liner material having a wide area is installed on the surface of the guide plate or chute, so the connection between the liners is similar to that using conventional ceramic liners. Since the parts can be brought into close contact with the same thickness without creating any gaps, there is no difference in level at the connection part, and almost no sintering raw material adheres to this part. Therefore, the number of scraping operations required in the conventional method is greatly reduced, and the liner can be easily installed and removed because it is a single plate.

[Brief explanation of drawings]

Fig. 1 is a side view of a sintering machine feeder as an embodiment of the present invention, Fig. 2 is a sectional view showing how to install an ultra-high molecular weight resin liner according to the present invention, and Fig. 3 is a side view of a sintering machine feeding device as an embodiment of the present invention. FIG. 2 is a cross-sectional view similar to FIG. 2; FIG. 4 is a side view of the conventional device, FIG. 5 is a front view of FIG. 4, and FIG. 6 is a cross-sectional view showing how to attach the conventional ceramic liner. 1... Sintering raw material, 2... Main raw material hopper, 3...
Roll feeder, 4... Guide plate, 5...
Shute, 6...Pallet, 7, 8...Liner made of ultra-high molecular weight synthetic resin.

Claims (1)

[Scope of utility model registration request] A sintering device characterized in that an ultra-high molecular weight synthetic resin liner is pasted on the surface of a guide plate, chute, etc. that supplies sintering raw materials to the pallet to prevent the sintering raw material from adhering to the surface of the guide plate, chute, etc. Closing ore feeding device.