CN215050447U

CN215050447U - Square distribution chute adopting whole-plate surfacing

Info

Publication number: CN215050447U
Application number: CN202121457512.2U
Authority: CN
Inventors: 王琪; 王艳; 张岩军; 段小朋
Original assignee: Sinosteel Xian Machinery Co Ltd
Current assignee: Sinosteel Xian Machinery Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-07
Anticipated expiration: 2031-06-29

Abstract

The application discloses a square distribution chute adopting whole-plate surfacing, relates to the technical field of blast furnace bell-less furnace top equipment, and is used for solving the technical problems that in the prior art, the joints of a plurality of lining plates at the tail part of the chute are weak, and the material sliding is easy to rub and damage. The distribution chute comprises a side lining plate and a bottom lining plate; the two side lining plates are respectively connected to the side walls of the inner surface of the tail groove; the bottom lining plate is connected to the bottom of the inner surface of the tail groove; the lateral lining plate and the bottom lining plate are all integral plates. The embodiment of the utility model provides a through having adopted the welt with the tail groove of cloth chute, including side welt and bottom welt, all adopt the interior wall connection of monoblock panel and tail groove, effectively solved a plurality of welt concatenations, need weld the department of concatenation, and the weak problem that easily receives the material stream impact damage of welding department, and then has realized reducing the maintenance frequency of cloth chute, prolongs the life of cloth chute.

Description

Square distribution chute adopting whole-plate surfacing

Technical Field

The application relates to the technical field of blast furnace bell-less furnace top equipment, in particular to a square distribution chute adopting whole plate surfacing welding.

Background

The distribution chute is an important part in blast furnace bell-less top equipment and is also key equipment in blast furnace production. The burden distribution chute is hung at the bottom of the airtight box, furnace burden is conveyed to the furnace top by a main feeding belt, enters the weighing material tank from a fixed receiving hopper through a feeding gate, is regulated by a discharging regulating valve to flow, and is loaded into the blast furnace through the airtight box and the burden distribution chute according to the process requirements of the blast furnace. As one of the devices which are in direct contact with the burden, it is known to distribute the burden to various parts of the upper part of the interior of the blast furnace. The chute is always positioned above the furnace burden and is impacted by mineral aggregate and abraded by material flow for a long time. Therefore, the high temperature, oxidation, impact, and abrasion make it always in the worst working environment.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an adopt square cloth chute of whole board build-up welding, has solved among the prior art the junction of a plurality of welts of chute afterbody weak, easily receives the damaged technical problem of material swift current friction, has realized improving the intensity and the wearability of tail groove, reduces maintenance frequency, increase of service life.

The embodiment of the utility model provides a square distribution chute adopting whole-plate surfacing welding, which comprises a side lining plate and a bottom lining plate; the two side lining plates are respectively connected to the side walls of the inner surface of the tail groove; the bottom lining plate is connected to the bottom of the inner surface of the tail groove; the lateral lining plate and the bottom lining plate are all integral plates.

In one possible implementation, the top of the side liner plate is connected with the top of the tail groove through a bolt.

In one possible implementation, the lower ends of the side lining panels are adapted to the side edges of the base lining panel.

In one possible implementation, the distribution chute further comprises an interlayer liner; the interlayer lining plate is connected to the bottom of the inner surface of the tail groove and arranged below the bottom lining plate.

In one possible implementation, the ends of the interlayer liner plate and the bottom liner plate close to the tail end of the tail groove are flush; and one end of the bottom lining plate, which is far away from the tail end of the tail groove, exceeds the interlayer lining plate.

In one possible implementation, the part of the bottom lining plate, which exceeds the interlayer lining plate, is filled with a shock-absorbing material between the bottom lining plate and the inner wall of the tail groove.

In one possible implementation, the side lining plates and the bottom lining plate are made of high-chromium wear-resistant cast iron.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model provides a through having adopted the welt with the tail groove of cloth chute, including side welt and bottom welt, all adopt the interior wall connection of monoblock panel and tail groove, effectively solved a plurality of welt concatenations, need weld the department of concatenation, and the weak problem that easily receives the material stream impact damage of welding department, and then has realized reducing the maintenance frequency of cloth chute, prolongs the life of cloth chute.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a square distribution chute adopting whole-plate surfacing welding according to an embodiment of the present application;

fig. 2 is a schematic structural view of a side lining plate according to an embodiment of the present disclosure;

fig. 3 is a schematic structural view of a bottom lining plate according to an embodiment of the present application.

Reference numerals: 1-a tail groove; 2-side lining plate; 3-bottom lining plate; 4-interlayer lining plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

The present embodiment provides a square distribution chute using whole-plate build-up welding, please refer to fig. 1 to 3 in the drawings of the specification together.

Referring to fig. 1, a square distribution chute using whole-plate build-up welding includes a side lining plate 2 and a bottom lining plate 3; the side lining plates 2 comprise two side walls which are respectively connected with the inner surface of the tail groove 1; the bottom lining plate 3 is connected to the bottom of the inner surface of the tail groove 1; the lateral lining plate 2 and the bottom lining plate 3 are all integral plates.

The embodiment of the utility model provides a through having adopted the welt with cloth chute's tail groove 1 interior welt, including side welt 2 and bottom welt 3, all adopt monoblock panel and tail groove 1's interior wall connection, effectively solved a plurality of welt concatenations, need weld the department of concatenation, and the weak problem that easily receives the material stream impact damage of welding department, and then has realized reducing the maintenance frequency of cloth chute, prolongs the life of cloth chute.

With continued reference to fig. 1, the top of the side liner 2 is bolted to the top of the aft trough 1.

The material flow flows in the distribution chute, mainly wearing down the bottom and the lower end of the side walls of the distribution chute. The tail groove 1 is the tail end of the distribution chute, and the material flows out of the tail groove 1 and flows to the next device. The material is easy to form and pile in the tail groove 1, so the wear resistance of the tail groove 1 needs to be improved. Adopt the bottom welt 3 of monoblock side welt 2, avoided the gap that polylith welt equipment formed. The top of the whole lateral lining plate 2 is fixed with the lateral lining plate 2 and the tail groove 1 at equal intervals through a plurality of bolts. When the side liner 2 needs to be repaired or replaced, the bolts are simply removed and the side liner 2 is removed entirely.

Among the prior art, the inner wall of distribution chute especially the inner wall of tail groove 1 all adopts the concatenation of polylith welt, and its purpose can carry out local change when the welt damages. At present, the distribution chute is always in overload work, and the defect that a gap at the joint of the splicing lining plates is easy to wear is increasingly revealed. Therefore, the problem to be solved at present is changed from easy maintenance to improvement of wear resistance. Therefore, a plurality of splicing lining plates are improved into a whole plate.

Referring to fig. 2 and 3, the lower ends of the side liners 2 are fitted to the sides of the bottom liner 3.

Side welt 2 and bottom liner board 3 all adopt monoblock panel, and the lower extreme of side welt 2 has seted up the recess, and the bottom of side welt 2 is connected with the side of bottom liner board 3, and the draw-in groove with the recess looks adaptation of the bottom of side welt 2 is seted up to the side of bottom liner board 3 to make side welt 2 and bottom liner board 3 joint in the same place.

Referring to figure 1, the distribution chute further comprises a sandwich liner 4; the interlayer liner plate 4 is connected to the bottom of the inner surface of the tail tank 1 and is arranged below the bottom liner plate 3. The interlayer lining plate 4 and one end of the bottom lining plate 3 close to the tail end of the tail groove 1 are flush; the end of the base liner 3 remote from the end of the tail trough 1 extends beyond the sandwich liner 4. The part of the bottom lining plate 3 which exceeds the interlayer lining plate 4 is filled with shock-absorbing materials between the bottom lining plate 3 and the inner wall of the tail groove 1.

The interlayer liner plate 4 is arranged between the bottom of the tail tank 1 and the bottom liner plate 3. Due to the fact that the workload is large, when the bottom lining plate 3 is worn or even penetrates through, the interlayer lining plate 4 can serve as a temporary wear-resisting plate, and the bottom lining plate 3 is convenient to overhaul or replace. Meanwhile, the interlayer lining plate 4 is arranged below the bottom lining plate 3, so that the inner wall of the tail groove 1 is prevented from being abraded due to material impact after the bottom lining plate 3 is abraded.

As one of the devices in direct contact with the charge, the chute is always above the charge for a long time subject to mineral impact and wear of the material flow. Therefore, the high temperature, oxidation, impact, and abrasion make it always in the worst working environment. Therefore, in order to protect the distribution chute and prolong the service life of the distribution chute, the protection of the inner wall of the distribution chute becomes an inevitable choice.

The side lining plates 2 and the bottom lining plate 3 are made of high-chromium wear-resistant cast iron. The side lining plates 2 and the bottom lining plate 3 can be made of high-chromium cast iron or steel with hard alloy surfacing on the surface. The material is preferably a material which has high wear resistance and impact resistance and is inexpensive. However, the utility model provides an adopt welt of whole board build-up welding still reduces 1 inner wall liner plate gaps in tail groove, stops the important improvement measure of wear-resisting weak link.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims

1. A square distribution chute adopting whole-plate surfacing welding is characterized by comprising a lateral lining plate (2) and a bottom lining plate (3);

the side lining plates (2) comprise two side walls which are respectively connected with the inner surface of the tail groove (1);

the bottom lining plate (3) is connected to the bottom of the inner surface of the tail groove (1);

the lateral lining plate (2) and the bottom lining plate (3) are all one-piece plates.

2. The square distribution chute with the whole-plate surfacing welding according to claim 1, characterized in that the top of the side lining plate (2) is connected with the top of the tail trough (1) through bolts.

3. The square distribution chute with full plate overlay welding according to claim 1, characterized in that the lower end of the side lining plate (2) is adapted to the side of the bottom lining plate (3).

4. The square distribution chute with the whole-plate build-up welding according to claim 1, characterized by further comprising a sandwich liner plate (4);

the interlayer lining plate (4) is connected to the bottom of the inner surface of the tail groove (1) and arranged below the bottom lining plate (3).

5. The square distribution chute built up by welding with a whole plate according to claim 4, characterized in that the sandwich liner plate (4) and the bottom liner plate (3) are flush with each other at the end close to the end of the tail chute (1);

one end of the bottom lining plate (3) far away from the tail end of the tail groove (1) exceeds the interlayer lining plate (4).

6. The square distribution chute with the whole-plate overlaying welding according to claim 5, characterized in that the part of the bottom lining plate (3) exceeding the interlayer lining plate (4) is filled with a shock-absorbing material between the bottom lining plate (3) and the inner wall of the tail trough (1).

7. The square distribution chute with full plate overlay welding according to claim 1, characterized in that the side lining plates (2) and the bottom lining plate (3) are made of high chromium wear resistant cast iron.