A Sintering Machine Pallet Guardrail and Its Positioning and Installation Method

Abstract

The present invention relates to high-temperature pellet sintering equipment, and particularly to a sintering trolley retaining plate and a positioning and installation method for high-temperature pellet sintering equipment. It includes a trolley, a retaining plate and a positioning pin; a plurality of retaining plate positioning pin holes and bolt holes are provided on the lower flange at the bottom of the retaining plate, the retaining plate positioning pin holes are adapted to the positioning pins, and a reinforcing rib plate is provided at the top of the retaining plate; a plurality of trolley positioning pin holes and bolt holes corresponding to the retaining plate positioning pin holes are provided on the upper flange of the trolley, and one of the trolley positioning pin holes is a long-strip trolley positioning pin hole; the trolley and the retaining plate are connected by positioning pins and bolts. It avoids loosening, outward tilting and rubbing against other devices of the trolley retaining plate during use; prevents cracks from occurring in the upper part of the retaining plate and improves the service life of the retaining plate.

Description

Technical Field

[0001] The present invention relates to a sintering equipment for high-temperature pellet ore, and particularly to a sintering trolley retaining plate and a positioning and installation method for a sintering equipment for high-temperature pellet ore. Background Art

[0002] A sintering machine is the main equipment for sintering high-temperature pellet ore. A sintering trolley is the main operating component of the sintering machine. Its main function is to form a running rotary chain between the head and tail wheels of the sintering machine, receive sintering mixture materials in the upper horizontal section, and after preheating, ignition, sintering, cooling, and material turning, return to the head wheel on the return journey to form a transmission cycle to achieve the purpose of sintering the materials.

[0003] To improve the productivity of sintered ore and meet the demand for the output of sintered ore after the blast furnace increases the proportion of sintered ore, many ironmaking plants have carried out capacity expansion and transformation on the sintering machines in the sintering workshop. The expansion of the sintering line in ironmaking plants has led to a relatively small gap between the retaining plate and the ignition device. Retaining plates are installed on both sides of the upper part of the sintering trolley. The retaining plate is fixed to the trolley body by bolts. Due to the gap between the bolts and the bolt holes, during the operation of the sintering trolley body, the retaining plate is subjected to the acting force of the materials and thermal effects, resulting in the deformation of the bolt gaskets and the loosening of the bolts, causing the retaining plate to tilt outward and scrape against the ignition device, affecting the normal operation of production. In addition, the existing retaining plates are extremely prone to cracking, affecting the service life of the retaining plates. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a sintering trolley retaining plate and a positioning and installation method. It avoids the loosening, outward tilting of the trolley retaining plate during use and scraping against other devices; prevents cracks from occurring in the upper part of the retaining plate and improves the service life of the retaining plate.

[0005] To achieve the above object, the present invention is realized by adopting the following technical solutions:

[0006] A connecting structure of a sintering trolley retaining plate includes a trolley, a retaining plate, and a positioning pin; a lower flange at the bottom of the retaining plate is provided with a plurality of retaining plate positioning pin holes and bolt holes, the retaining plate positioning pin holes are adapted to the positioning pins, and a reinforcing rib plate is provided at the top of the retaining plate; an upper flange of the trolley is provided with a plurality of trolley positioning pin holes and bolt holes corresponding to the retaining plate positioning pin holes, and one of the trolley positioning pin holes is a long-strip trolley positioning pin hole; the trolley and the retaining plate are connected by positioning pins and bolts.

[0007] The upper part of the positioning pin is a taper pin, and the lower part is a stud.

[0008] The lower flange at the bottom of the retaining plate is provided with two retaining plate positioning pin holes, the upper flange of the trolley is provided with two trolley positioning pin holes, and the positions of the trolley positioning pin holes correspond to those of the retaining plate positioning pin holes; both of the two retaining plate positioning pin holes are taper holes, one of the two trolley positioning pin holes is a taper hole, and the other is a long-strip taper hole.

[0009] The thickness of the reinforcing rib is greater than the wall thickness of the railing panel.

[0010] A positioning and installation method for the railing panel of a sintering machine trolley specifically includes:

[0011] 1) Determine the size of the positioning pins according to the specifications of the sintering machine trolley and the railing panel, and set two positioning pins for each railing panel.

[0012] 2) Use conical positioning pins, and the positioning pins are surface carburized and quenched with T10A or No. 20 steel.

[0013] 3) Open two conical holes in the lower flange at the bottom of the railing panel, and open a conical hole and a long-strip conical hole at the corresponding positions of the flange at the upper part of the sintering machine trolley where it is connected to the railing panel, corresponding to the positioning pin holes of the railing panel.

[0014] 4) Make conical pins according to the corresponding dimensions of the conical holes, and a stud is provided at the lower part of the conical pin.

[0015] 5) When installing and replacing the railing panel, align the positioning pin holes of the railing panel with the positioning pin holes of the trolley body and insert the positioning pins. Use a hammer to tap to make the positioning pins fit tightly with the pin holes, and screw nuts onto the studs at the lower part of the positioning pins.

[0016] 6) Connect and fix the railing panel and the trolley with bolts, nuts, and washers according to the sizes and positions of the holes in the lower flange of the railing panel and the upper flange of the trolley.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1) In the present invention, in addition to using bolts for the connection between the railing panel of the sintering machine trolley and the trolley body, positioning pins are added. There is no gap between the positioning pins and the pin holes in the force-bearing direction, which can resist the outward force on the railing panel. Therefore, it can prevent the railing panel from tilting due to bolt loosening and can reduce the loosening of the connection bolts.

[0019] 2) Cracks always occur in the upper part of the existing railing panels. By providing reinforcing ribs in the upper part of the railing panel, cracks in the upper part of the railing panel can be prevented, and the service life of the railing panel can be improved.

[0020] 2) The present invention is provided with long-strip conical holes, which makes it convenient to install the railing panel, and the railing panel can freely expand and contract under high-temperature working conditions.

[0021] 3) A stud is provided at the lower part of the positioning pin, and a nut is screwed onto the stud to prevent the positioning pin from loosening and falling off during the operation of the sintering machine trolley body. Description of the Drawings

[0022] Figure 1 is the schematic front sectional view of the structure of the present invention;

[0023] Figure 2 is the schematic front view of the structure of the railing panel of the present invention;

[0024] Figure 3 It is a schematic side view of the railing structure of the present invention;

[0025] Figure 4 It is a schematic top view of the railing structure of the present invention;

[0026] Figure 5 It is a schematic front view of the trolley structure of the present invention;

[0027] Figure 6 It is a schematic side view of the trolley structure of the present invention;

[0028] Figure 7 It is a schematic top view of the trolley structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the positioning pin structure of the present invention.

[0030] In the figure: 1 - trolley, 2 - railing, 3 - positioning pin, 11 - upper flange, 12 - conical hole, 13 - elongated conical hole, 21 - lower flange, 22 - railing positioning pin hole, 23 - bolt hole, 24 - reinforcing rib, 31 - conical pin, 32 - stud, 33 - nut Detailed implementation manners

[0031] The following further describes the detailed implementation manners of the present invention, but it is not used to limit the scope of the present invention:

[0032] As Figure 1 shown, a connection structure for the railing of a sintering machine trolley includes a trolley 1, a railing 2, and a positioning pin 3.

[0033] As Figure 8 shown, the upper part of the positioning pin 3 is a conical pin 31, and the lower part is a stud 32.

[0034] As Figures 2 to 4 shown, two railing positioning pin holes 22 are symmetrically arranged on both sides of the lower flange 21 at the bottom of the railing. Both of the two railing positioning pins 22 are conical holes. The railing positioning pin holes 22 are adapted to the conical pins 31. Multiple bolt holes 23 are provided on the lower flange 21 at the bottom of the railing. A reinforcing rib 24 is provided at the top of the railing 2. The thickness of the reinforcing rib 24 is greater than the wall thickness of the railing 2. The reinforcing rib 24 can prevent cracks from occurring in the upper part of the railing 2 and improve the service life of the railing 2.

[0035] As Figures 5 to 7 shown, two trolley positioning pin holes are provided on the upper flange 11 of the trolley 1. The positions of the trolley positioning pin holes correspond to those of the railing positioning pin holes 22. One of the two trolley positioning pin holes is a conical hole 12, and the other is an elongated conical hole 13.

[0036] As Figures 1 to 8 shown, a method for positioning and installing the railing of a sintering machine trolley specifically includes:

[0037] 1) Determine the size of the positioning pin 3 according to the specifications of the sintering machine trolley 1 and the retaining plate 2, and two positioning pins 3 are provided for each retaining plate 2.

[0038] 2) Adopt conical positioning pins, and the positioning pins 3 are surface carburized and quenched with T10A or 20 steel.

[0039] 3) Open two retaining plate positioning pin holes 22 at the lower flange 21 of the bottom of the retaining plate 2, and open a conical hole 12 and a long-strip conical hole 13 at the corresponding position of the upper flange 11 of the sintering machine trolley 1 where it is connected to the retaining plate; opening a long-strip conical hole 13 is for the convenience of installing the retaining plate 2 and for the retaining plate 2 to freely expand and contract under high-temperature working conditions.

[0040] 4) Manufacture a conical pin 31 corresponding to the size of the conical hole, and the lower part of the conical pin is a stud 32.

[0041] 5) When installing and replacing the retaining plate 2, align the retaining plate positioning pin hole 22 with the trolley body positioning pin hole and insert the positioning pin 3, and tap with a hammer to make the positioning pin 3 fit tightly with the pin hole, and screw on the nut 33 to the lower stud of the positioning pin 3; prevent the positioning pin 3 from loosening and falling off during the operation of the sintering machine trolley 1.

[0042] 6) Connect and fix the retaining plate 2 and the trolley 1 with bolts, nuts and gaskets according to the opening size and position of the lower flange 21 of the retaining plate 2 and the upper flange 11 of the trolley 1.

[0043] The present invention avoids loosening, tilting outward and rubbing against other devices of the trolley retaining plate 2 during use; prevents cracks from occurring in the upper part of the retaining plate 2 and improves the service life of the retaining plate 2.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A connecting structure for the side plates of a sintering machine trolley, characterized in that: It includes a trolley, a bulkhead and a locating pin; multiple bulkhead locating pin holes and bolt holes are provided on the lower flange at the bottom of the bulkhead, the bulkhead locating pin holes are adapted to the locating pins, and stiffening rib plates are provided at the top of the bulkhead; multiple trolley locating pin holes corresponding to the bulkhead locating pin holes and bolt holes are provided on the upper flange of the trolley, and one of the trolley locating pin holes is an elongated trolley locating pin hole; the trolley and the bulkhead are connected by the locating pins and bolts. The upper part of the locating pin is a taper pin, and the lower part is a stud. Two bulkhead locating pin holes are provided on the lower flange at the bottom of the bulkhead, and two trolley locating pin holes are provided on the upper flange of the trolley. The positions of the trolley locating pin holes correspond to those of the bulkhead locating pin holes; both of the two bulkhead locating pin holes are taper holes, one of the two trolley locating pin holes is a taper hole, and the other is an elongated taper hole.

2. The connecting structure of the sintering machine trolley railing according to claim 1, characterized in that: The thickness of the stiffening rib is greater than the wall thickness of the bulkhead.

3. A method for positioning and installing the sintering machine trolley guardrail connection structure according to claim 1 or 2, characterized in that, Specifically, it includes: 1) Determine the size of the locating pin according to the specifications of the sintering machine trolley and the bulkhead, and set two locating pins for each bulkhead. 2) Adopt taper locating pins, and the locating pins are surface carburized and quenched with T10A or No. 20 steel. 3) Open two taper holes on the lower flange at the bottom of the bulkhead, and open a taper hole and an elongated taper hole at the corresponding positions of the flange at the upper part of the sintering machine trolley where it is connected to the bulkhead relative to the bulkhead locating pin holes. 4) Manufacture taper pins according to the corresponding sizes of the taper holes, and studs are provided at the lower parts of the taper pins. 5) When installing and replacing the bulkhead, align the bulkhead locating pin holes with the trolley body locating pin holes and insert the locating pins, and tap with a hammer to make the locating pins fit tightly with the pin holes, and screw nuts onto the studs at the lower parts of the locating pins. 6) Connect and fix the bulkhead and the trolley with bolts, nuts and gaskets according to the sizes and positions of the holes opened on the lower flange of the bulkhead and the upper flange of the trolley.

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