CN212713601U

CN212713601U - Wear-resistant lining structure of blast furnace raw gas system

Info

Publication number: CN212713601U
Application number: CN202021284622.9U
Authority: CN
Inventors: 田辉; 熊拾根; 邹达基; 姜楠; 张万龙
Original assignee: CISDI Engineering Co Ltd
Current assignee: CISDI Engineering Co Ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-03-16
Anticipated expiration: 2030-07-03

Abstract

The utility model belongs to the field of metallurgical industry, and relates to a wear-resistant lining structure of a blast furnace crude gas system, which comprises more than 2 reinforcing steels longitudinally arranged on the inner wall of a shell and more than one steel clapboard arranged between the adjacent 2 reinforcing steels; still include with reinforcing steel, steel baffle cooperation use and fixed resistant material that sets up on the shells inner wall. The utility model discloses be applied to blast furnace coarse coal gas system to prevent that dust remover box hat and coarse coal gas pipeline from receiving blast furnace gas's erosive wear, and reduce the loss of gas temperature, compare with traditional anchor assembly and wire net ligature, adopt the I-steel to add the mode of steel baffle and make spray coating, resistant firebrick be difficult to drop, prolonged the life-span of wear-resisting inside lining, even there is resistant material to drop, the pattern of piecemeal is also repaired more easily.

Description

Wear-resistant lining structure of blast furnace raw gas system

Technical Field

The utility model belongs to the field of metallurgical industry, a wear-resisting lining structure of blast furnace raw gas system is related to.

Background

The gas generated by blast furnace smelting is discharged from the top of the furnace, and a plurality of fine-grained charging materials are carried in the gas, namely, the blast furnace gas contains furnace dust. The dust-containing gas discharged from the top of the blast furnace passes through a coarse dust removal system, wherein an inertial dust remover (a gravity dust remover, a cyclone dust remover or both are adopted for coarse dust removal), and then the gas fine dust removal system performs fine dust removal on the gas by a dry dust removal method (a bag-type dust remover and an electrostatic dust removal method) and a wet dust removal method (a bilingual and circular seam washer), and then the gas enters a clean gas pipe network of the whole plant.

The blast furnace crude gas dust removal system comprises a gas leading-out pipe, an ascending pipe, a five-way ball, a descending pipe, a gravity dust remover or a cyclone dust remover, maintenance facilities and the like. In order to prevent the steel shell of the dust remover and the raw gas pipeline from being scoured and worn and reduce the temperature loss of the gas, the inner walls of the leading-out pipe, the ascending pipe, the descending pipe and the mounting pipeline of the valve seat of the shutoff valve are sprayed with refractory spray paint or masonry refractory bricks. The wear-resistant lining of the crude gas system is very critical, and a reasonable and reliable lining structure is also very important on the premise of reasonable thickness and qualified performance indexes. The unreasonable lining structure can cause the falling of refractory materials, thereby causing accidents such as the wearing of a crude gas pipeline or a dust remover shell and the like, and further influencing the normal production of the blast furnace.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a wear-resistant lining structure for a blast furnace raw gas system, which can make refractory materials have the advantages of being not easy to fall off, long in service life and easy to repair.

In order to achieve the above purpose, the utility model provides a following technical scheme: a blast furnace raw gas system wear-resistant lining structure comprises more than 2 reinforcing steels longitudinally arranged on the inner wall of a shell and more than one steel partition plate arranged between the adjacent 2 reinforcing steels;

still include with strengthen steel, steel baffle cooperation use and fixed resistant material that sets up on the shells inner wall.

Optionally, resistant material is wear-resisting spray paint, is provided with on the shells inner wall with this wear-resisting spray paint cooperation a plurality of anchor assembly that uses.

Optionally, part of the anchoring parts are fixed on two side surfaces of the reinforced steel; part of the anchoring pieces are fixed on two side surfaces of the steel clapboard.

Optionally, the steel wire mesh is installed in cooperation with part of the anchoring piece, the open end of the part of the anchoring piece is fixed to the steel wire mesh, and the closed end of the part of the anchoring piece is fixed to the inner wall of the shell.

Optionally, the anchoring piece is V-shaped, Y-shaped or C-shaped, and the height of the anchoring piece is 35-90 mm.

Optionally, the inner wall of the shell is sprayed with a wear-resistant spray coating, and the spraying thickness of the wear-resistant spray coating is 50-120 mm.

Optionally, the distance between two adjacent anchoring pieces in the transverse direction and the longitudinal direction is 100-200 mm.

Optionally, the refractory material is a refractory brick.

Optionally, the reinforcing steel is i-steel.

The beneficial effects of the utility model reside in that: the utility model relates to a wear-resisting inside lining structure of blast furnace coarse coal gas system compares with traditional anchor assembly and wire net ligature, adopts the I-steel to add the mode of steel baffle and makes spray coating, resistant firebrick be difficult to drop, has prolonged the life-span of wear-resisting inside lining, even have resistant material to drop, the pattern of piecemeal is also repaired more easily.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic diagram of embodiment 1 of the present invention;

FIG. 2 is a view taken along line K of FIG. 1;

fig. 3 is a top view of embodiment 1 of the present invention;

fig. 4 is a top view of embodiment 2 of the present invention.

Reference numerals: i-steel 1, anchoring parts 2, steel partition plates 3, steel wire meshes 4, a shell 5, wear-resistant spray paint 6 and refractory bricks 7.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

In the specific embodiment 1, the method comprises the following steps of,

referring to fig. 1 to 3, a wear-resistant lining structure of a blast furnace raw gas system comprises more than 2 i-beams 1 longitudinally arranged on the inner wall of a shell 5 and more than one steel partition plate 3 arranged between the adjacent 2 i-beams 1; the steel plate is characterized by further comprising a durable material which is matched with the I-shaped steel 1 and the steel partition plate 3 for use and is fixedly arranged on the inner wall of the shell 5.

In this embodiment, when the refractory material is the wear-resistant spray coating 6, the refractory material further comprises an anchoring part 2 and a steel wire mesh 4 which are used in a matched manner; the open end of most of the anchoring parts 2 is welded and fixed with the steel wire mesh 4, and the closed end is welded and fixed with the inner wall of the shell 5; a part of anchoring parts 2 are welded and fixed on two side surfaces of the I-shaped steel 1; a part of the anchoring parts 2 are welded and fixed on two side surfaces of the steel clapboard 3; and (3) spraying the wear-resistant spray coating 6 on the inner wall of the pipeline of the crude gas system and the inner wall of the dust remover, wherein the spraying thickness of the wear-resistant spray coating 6 is 50-120 mm.

In the embodiment, the anchoring piece 2 is V-shaped, Y-shaped or C-shaped, and the height thereof is 35-90 mm; the distance between two adjacent anchoring pieces 2 in the transverse direction and the longitudinal direction is 100-200 mm.

In the specific embodiment 2, the method comprises the following steps of,

referring to fig. 4, unlike embodiment 1, the refractory material in this embodiment is refractory brick 7, and the i-beam 1 and the steel partition 3 can serve as a brick support, so that the refractory brick 7 is not easy to fall off, and even if the refractory brick falls off, the i-beam 1 and the steel partition 3 can reinforce the raw gas pipeline or the dust collector housing 5.

The utility model discloses be applied to blast furnace coarse coal gas system to prevent that dust remover box hat and coarse coal gas pipeline from receiving blast furnace gas's erosive wear, and reduce the loss of gas temperature, compare with

traditional anchor assembly

2 and 4 ligatures of wire net, adopt I-steel 1 to add the mode messenger spray coating of steel baffle 3, resistant firebrick 7 is difficult to drop, has prolonged the life-span of wear-resisting inside lining, even have resistant material to drop, the pattern of piecemeal is also repaired more easily.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a wear-resisting inside lining structure of blast furnace raw gas system which characterized in that: the steel partition plate comprises more than 2 pieces of reinforcing steel longitudinally arranged on the inner wall of the shell and more than one steel partition plate arranged between the adjacent 2 pieces of reinforcing steel;

2. The blast furnace raw gas system wear-resistant lining structure of claim 1, which is characterized in that: the refractory material is a wear-resistant spray coating, and a plurality of anchoring pieces matched with the wear-resistant spray coating for use are arranged on the inner wall of the shell.

3. The blast furnace raw gas system wear-resistant lining structure of claim 2, which is characterized in that: part of anchoring parts are fixed on two side surfaces of the reinforced steel; part of the anchoring pieces are fixed on two side surfaces of the steel clapboard.

4. The blast furnace raw gas system wear-resistant lining structure of claim 2, which is characterized in that: the steel wire mesh is matched with part of the anchoring parts, the open ends of the part of the anchoring parts are fixed with the steel wire mesh, and the closed ends of the part of the anchoring parts are fixed with the inner wall of the shell.

5. The blast furnace raw gas system wear-resistant lining structure of claim 2, which is characterized in that: the anchoring piece is V-shaped, Y-shaped or C-shaped, and the height of the anchoring piece is 35-90 mm.

6. The blast furnace raw gas system wear-resistant lining structure of claim 2, which is characterized in that: and spraying wear-resistant spray paint on the inner wall of the shell, wherein the spraying thickness of the wear-resistant spray paint is 50-120 mm.

7. The blast furnace raw gas system wear-resistant lining structure of claim 2, which is characterized in that: the distance between two adjacent anchoring parts in the transverse direction and the longitudinal direction is 100-200 mm.

8. The blast furnace raw gas system wear-resistant lining structure of claim 1, which is characterized in that: the refractory material is a refractory brick.

9. The blast furnace raw gas system wear-resistant lining structure of claim 1, which is characterized in that: the reinforcing steel is I-shaped steel.