CN210856183U

CN210856183U - High temperature resistant blast furnace distribution chute

Info

Publication number: CN210856183U
Application number: CN201921550797.7U
Authority: CN
Inventors: 金喜元; 袁新胜
Original assignee: Wuhan Chuguang Cloth Chute Manufacturing Co ltd
Current assignee: Wuhan Chuguang Cloth Chute Manufacturing Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-26
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a high temperature resistant blast furnace cloth chute has solved the problem that the chute outer wall can't be used for a long time under high temperature, corrosive gas environment among the prior art, and its technical essential is: the utility model provides a high temperature resistant blast furnace cloth chute, includes that the cross-section in defeated material side is square chute body and sets up at this internal wear-resisting welt of chute, the outer wall of chute body is adorned outward and is equipped with first baffle, the inner wall of chute body with the second baffle has been installed between the wear-resisting welt. Through above-mentioned scheme, realized that the chute separates with the high temperature air environment of blast furnace top under the first baffle effect, realized effectively reducing the chute outer wall and corroded by external high temperature air oxidation, and the second baffle between wear-resisting welt and the chute body separates the inner wall of wear-resisting welt and chute body, finally makes the inside and outside both sides of chute body all effectively protect, and life is longer, and the change frequency reduces.

Description

High temperature resistant blast furnace distribution chute

Technical Field

The utility model relates to a technical field of blast furnace equipment especially relates to a high temperature resistant blast furnace cloth chute.

Background

The high temperature distribution chute is one of the indispensable equipment of blast furnace ironmaking, and it is bearing the task of final rotatory cloth in to the stove, because its groove face still need constantly bear the erodeing of furnace charge when the distribution chute is long-term operation under high temperature, strong corrosive gas and heavy dust environment, therefore the distribution chute after using for a period just faces the change scheduling problem.

Blast furnace cloth chute on the existing market is including the multi-structure chute of material abrasive material formula (long-pending nest formula) chute, plain noodles cloth chute and the two unification roughly, to plain noodles cloth chute, its major structure comprises casting organism, welt, clamp plate and fastener etc. the welt that the terminal surface was equipped with wear-resistant material additional is installed on the chute groove face to replaced chute and furnace charge contact, in order to prolong the life of chute.

The above prior art solutions have the following drawbacks: although the inner wall of the chute is separated from the furnace burden through the lining plate, the furnace burden scouring is avoided, and the internal temperature is reduced, the outer wall of the chute which is directly exposed above the blast furnace is still in a high-temperature and strong corrosive gas environment, so that the outer wall of the chute still has the problems of corrosion, oxidation and the like, the chute cannot be used for a long time, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inner and outer both sides all obtain effective protection, anticorrosive high temperature resistant blast furnace cloth chute.

The utility model discloses a can realize through following technical scheme:

the utility model provides a high temperature resistant blast furnace cloth chute, includes that the cross-section in defeated material side is square chute body and sets up at this internal wear-resisting welt of chute, the outer wall of chute body is adorned outward and is equipped with first baffle, the inner wall of chute body with all installed the second baffle between the wear-resisting welt.

Through adopting above-mentioned technical scheme, the outer wall of chute body is separated with the high temperature air environment of blast furnace top under the first baffle effect of installing, realize effectively reducing the chute outer wall and corroded by external high temperature air oxidation, simultaneously under the wear-resisting welt effect furnace charge will be separated with the inner wall of chute body, and the second baffle between wear-resisting welt and the chute body separates the inner wall of wear-resisting welt and chute body, realize reducing the heat that transmits to the chute body on the wear-resisting welt from inside, finally make the inside and outside both sides of chute body all obtain effective protection, service life is longer, change the frequency and reduce.

Further setting the following steps: the utility model discloses a chute body, including the chute body, the both sides border of chute body to the chute body turns over outward and is provided with and be used for the installation chimb of first baffle, the both sides outer wall of first baffle be provided with the connection chimb of installation chimb bottom surface butt, the installation chimb with be provided with the connecting bolt who runs through both between the connection chimb, the equal threaded connection in both ends of connecting bolt has fastening nut.

Through adopting above-mentioned technical scheme, will realize fixed connection under the connecting bolt effect after installation chimb and the joint connection chimb butt, and then make chute body both sides and the first baffle of parcel on its outer wall realize fixed connection, connect the simple swift of mounting means to can demolish fast when needs are dismantled.

Further setting the following steps: the both sides border of wear-resisting welt is provided with the butt chimb to turning over outward perpendicularly, butt chimb butt is in on the chute body inner wall, butt chimb top surface with coplane is followed on the chute body top, the both sides border of second baffle with the bottom surface butt of butt chimb, chute body both sides all are provided with and pass perpendicularly chute body, second baffle and the construction bolt of wear-resisting welt, construction bolt's both ends are in the chute body and wear-resisting welt all is connected with outward fastening nut.

Through adopting above-mentioned technical scheme, mounting bolt carries out union connection with chute body, second baffle and wear-resisting welt through the fastening nut at both ends, realizes that the wholeness between the three is stronger when with wear-resisting welt and chute body divided, and then makes the chute more stable at the guide in-process, effectively prolongs the life of chute.

Further setting the following steps: the mounting convex edge bottom surface is close to the perpendicular inwards provision of one side of chute body outer wall the slot that stretches into is followed to first baffle both sides top, mounting bolt passes in proper order from one side the mounting convex edge first baffle the chute body the second baffle and wear-resisting welt.

Through adopting above-mentioned technical scheme, first baffle will be connected together on mounting bolt after stretching into the slot for the chute realizes with the help of mounting bolt that the secondary is connected fixedly except that connecting bolt at first baffle, and then avoids connecting bolt fastening nut to become flexible to drop and lead to first baffle to drop on it after long-time the use, realizes first baffle, the chute body, second baffle and wear-resisting welt synchronous connection with the help of mounting bolt simultaneously, and an organic whole nature is stronger, and the use stability is higher.

Further setting the following steps: the first partition plate is close to the inner wall of the chute body and the two sides of the second partition plate are provided with a plurality of mutually-spaced butting protrusions.

Through adopting above-mentioned technical scheme, the butt is protruding can all form thermal-insulated space between first baffle and chute body and the both sides of second baffle, makes heat transfer efficiency lower, and then makes the chute body temperature lower when using.

Further setting the following steps: the ratio of the width to the height of the chute body is 1: 0.7-0.8.

Through adopting above-mentioned technical scheme, satisfy when making the furnace charge landing in the chute that the chute both sides consumptive material quantity is lower when can't drop outside the chute, reduces the chute cost of manufacture.

Further setting the following steps: the wear-resistant lining plate is made of wear-resistant alloy steel.

Through adopting above-mentioned technical scheme for wear-resisting welt has stronger wearability, makes the live time of single wear-resisting welt longer, reduces the change frequency.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the outer wall and the inner wall of the chute body are protected in a separating way, so that the service life of the chute in a high-temperature environment is longer, the replacement frequency is reduced, and the production cost is reduced;

(2) connect closely between first baffle, chute body, second baffle and the wear-resisting welt, whole chute wholeness is stronger, uses more stably.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a top view of an embodiment of the invention;

fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Reference numerals: 1. a chute body; 2. a wear-resistant lining plate; 3. a first separator; 4. a second separator; 5. installing a convex edge; 6. connecting the convex edge; 7. a connecting bolt; 8. fastening a nut; 9. abutting the convex edge; 10. a slot; 11. installing a bolt; 12. abutting against the projection.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a high temperature resistant blast furnace distribution chute, which comprises a chute body 1 with a square cross section in the material conveying direction and an open top surface, wherein the ratio of the distance between the two side walls of the chute body 1 to the groove depth of the chute is 1:0.7, and the chute further comprises a wear-resistant lining plate 2 which is arranged in the chute body 1 and has the same shape with the chute body 1. Meanwhile, the outer wall of the chute body 1 is provided with a first partition plate 3 with the same shape as the chute body 1, and a second partition plate 4 with the same shape as the chute body 1 is arranged between the chute body 1 and the wear-resistant lining plate 2.

Referring to fig. 2 and 3, the both sides border of chute body 1 is turned over to the outer perpendicular book of chute body 1 and is provided with integrated into one piece's installation chimb 5, the both sides outer wall of first baffle 3 then is provided with perpendicularly with the connection chimb 6 of 5 bottom surfaces butts of installation chimb, and be provided with perpendicularly between installation chimb 5 and connection chimb 6 and run through connecting bolt 7 between both, the equal threaded connection in both ends of connecting bolt 7 has the fastening nut 8 of abutting tightly on installation chimb 5 or on connecting chimb 6, realize being connected of first baffle 3 and chute body 1.

Referring to fig. 2 and 3 simultaneously, the both sides border of wear-resisting welt 2 is outwards turned over perpendicularly and is provided with integrated into one piece's butt chimb 9, and butt chimb 9 butt is on chute body 1 inner wall, and 9 top surfaces of butt chimb and chute body 1 top edge coplane, and the bottom surface of butt chimb 9 is in between the top surface and the bottom surface of installation chimb 5. The top edges of the two sides of the second partition board 4 are abutted with the bottom surface of the abutting convex edge 9.

In addition, the slot 10 that supplies 3 both sides of first baffle top edge to stretch into is inwards offered perpendicularly to one side that 5 bottom surfaces of installation chimb are close to the outer wall of chute body 1 to one side, and simultaneously, all be provided with in 1 both sides of chute body and pass installation chimb 5, chute body 1, the mounting bolt 11 of second baffle 4 and wear-resisting welt 2 perpendicularly in proper order, and mounting bolt 11's both ends all are connected with fastening nut 8, and fastening nut 8 at both ends supports tightly respectively on the lateral wall of installation chimb 5 and wear-resisting welt 2. The first partition plate 3, the second partition plate 4 and the wear-resistant lining plate 2 are fixedly connected to the chute body 1.

Be close to at first baffle 3 on the inner wall of chute body 1 and the both sides of second baffle 4 all are provided with the protruding 12 of a plurality of mutual spaced butt, the protruding 12 of butt and the 1 outer wall butt of chute body on the first baffle 3, the protruding 12 of butt of 4 both sides of second baffle then respectively with the inner wall of chute body 1 and the outer wall butt that is close to chute body 1 of wear-resisting welt 2, and then form and be used for thermal-insulated space.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high temperature resistant blast furnace cloth chute, includes that the cross-section in defeated material side is square chute body (1) and sets up wear-resisting welt (2) in chute body (1), its characterized in that: the outer wall of chute body (1) is equipped with first baffle (3) outward, the inner wall of chute body (1) with second baffle (4) have been installed between wear-resisting welt (2).

2. The high temperature resistant blast furnace distribution chute of claim 1, wherein: the chute is characterized in that the two side edges of the chute body (1) are provided with mounting convex edges (5) used for mounting the first partition plates (3) in a mode that the chute body (1) is outwards folded, the outer walls of the two sides of the first partition plates (3) are provided with connecting convex edges (6) abutted to the bottom surfaces of the mounting convex edges (5), the mounting convex edges (5) are provided with connecting bolts (7) penetrating through the mounting convex edges and the connecting convex edges (6), and the two ends of each connecting bolt (7) are in threaded connection with fastening nuts (8).

3. The high temperature resistant blast furnace distribution chute of claim 2, wherein: the both sides border of wear-resisting welt (2) is provided with butt chimb (9) to turning over outward perpendicularly, butt chimb (9) butt is in on chute body (1) inner wall, butt chimb (9) top surface with coplane is followed on chute body (1) top, the both sides border of second baffle (4) with the bottom surface butt of butt chimb (9), chute body (1) both sides all are provided with and pass perpendicularly chute body (1), second baffle (4) and construction bolt (11) of wear-resisting welt (2), the both ends of construction bolt (11) are in chute body (1) and all be connected with outside wear-resisting welt (2) fastening nut (8).

4. A high temperature resistant blast furnace distribution chute as claimed in claim 3 wherein: the utility model discloses a chute body, including installation chimb (5), installation chimb (5) bottom surface is close to the perpendicular inside confession of having seted up in one side of chute body (1) outer wall slot (10) that stretches into are followed to first baffle (3) both sides top, construction bolt (11) are passed in proper order from one side installation chimb (5) first baffle (3) chute body (1) second baffle (4) and wear-resisting welt (2).

5. The high temperature resistant blast furnace distribution chute of claim 1, wherein: the first partition plate (3) is close to the inner wall of the chute body (1) and the two sides of the second partition plate (4) are provided with a plurality of mutually spaced abutting protrusions (12).

6. The high temperature resistant blast furnace distribution chute of claim 1, wherein: the ratio of the width to the height of the chute body (1) is 1: 0.7-0.8.

7. The high temperature resistant blast furnace distribution chute of claim 1, wherein: the wear-resistant lining plate (2) is made of wear-resistant alloy steel.