CN215276221U

CN215276221U - Dust removal mechanism for blast furnace of steel plant

Info

Publication number: CN215276221U
Application number: CN202022301130.2U
Authority: CN
Inventors: 杨海西; 樊利智; 杨文芳; 曹晓运
Original assignee: Hebei Jingye Precision Pipe Co ltd
Current assignee: Hebei Jingye Precision Pipe Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-12-24
Anticipated expiration: 2030-10-15

Abstract

The utility model relates to a steel mill blast furnace technical field especially relates to a dust removal mechanism for steel mill blast furnace, including box and air-purifying chamber, the bottom of box is connected with the dust exhaust pipe of taking the valve, and the lateral wall of box has welded the intake pipe, and the air-purifying chamber is installed at the roof of box, and the lateral wall of air-purifying chamber is connected with the blast pipe, is equipped with the jetting pipe in the air-purifying chamber, and the one end of jetting pipe links to each other with the blast pipe and is equipped with the pulse valve on its other end, installs the filter bag that links to each other with the jetting pipe in the box, all install linear electric motor on the both sides diapire of box, and the both sides diapire of box all slides between its lateral wall and is provided with the drive seat to the both sides diapire of box rotates between its inner wall and is provided with the bottom. Compared with the prior art, the utility model discloses improved the collection efficiency to the dust to a very big degree, avoided remaining the condition in the box by remaining dust.

Description

Dust removal mechanism for blast furnace of steel plant

Technical Field

The utility model relates to a steel mill blast furnace technical field especially relates to a dust removal mechanism for steel mill blast furnace.

Background

The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because of the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like of the blast furnace ironmaking technology, the iron produced by the method accounts for the vast majority of the total iron production in the world.

Dust removal mechanism will be connected to the exhaust end at the blast furnace usually for filter tail gas, dust in the tail gas can fall into the ash bucket, and all direct bottom-mounting lid at the ash bucket usually, be used for discharging the dust, but this kind of condition can not guarantee completely that the dust falls down, consequently needs a device to solve the problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art and providing a dedusting mechanism for a blast furnace of a steel plant.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a dust removal mechanism for a blast furnace in a steel plant comprises a box body and an air purification chamber, wherein the bottom end of the box body is connected with a dust exhaust pipe with a valve, an air inlet pipe is welded on the side wall of the box body, the air purification chamber is arranged on the top wall of the box body, the side wall of the air purification chamber is connected with an exhaust pipe, an injection pipe is arranged in the air purification chamber, one end of the injection pipe is connected with the exhaust pipe, the other end of the injection pipe is provided with a pulse valve, and a filter bag connected with the injection pipe is arranged in the box body;

linear motors are mounted on the bottom walls of the two sides of the box body, the driving seats are arranged on the bottom walls of the two sides of the box body in a sliding mode between the side walls of the box body, the bottom covers are arranged on the bottom walls of the two sides of the box body in a rotating mode between the inner walls of the bottom covers, a linkage shaft is connected between the outer wall of each bottom cover and the driving seat, and the side walls of the driving seats are fixedly connected with the end portions of output shafts of the linear motors.

Preferably, a guide plate is welded on one side of the inner wall of the box body and is positioned on one side of the filter bag.

Preferably, a plurality of groups of guide pipes are welded at the bottom end of the injection pipe, and the bottom ends of the guide pipes are inserted into the filter bag.

Preferably, the bottom wall of the box body is provided with sliding grooves on the outer walls of two sides of the bottom wall.

Preferably, the driving seat is of a U-shaped structure, guide bars are welded on two sides of the driving seat, and the guide bars are arranged in the sliding grooves in a sliding mode.

Preferably, the outer wall of the bottom cover is welded with a connecting seat, and the linkage shaft is fixedly connected with the end parts of the driving seats at the two ends of the linkage shaft and the connecting seat through keys.

The utility model has the advantages that:

through the drive at the both sides bottom wall mounting bottom at the box, the bottom rotates the regulation through linear electric motor, drive seat and universal driving shaft's drive to the supplementary staff carries out the dust recovery processing of the degree of depth, compares in prior art, the utility model discloses improved the collection efficiency to the dust to very big degree, avoided remaining the condition in the box by remaining dust.

Drawings

FIG. 1 is a schematic structural view of a dust removing mechanism for a blast furnace of a steel mill according to the present invention;

FIG. 2 is a schematic structural view of the bottom of a box body of a dust removing mechanism for a blast furnace of a steel plant according to the present invention;

fig. 3 is an enlarged structural diagram of a part a in fig. 2.

In the figure: the device comprises a

box body

1, 11 filter bags, 12 guide plates, 13 dust exhaust pipes, 14 bottom covers, 15 sliding grooves, 2 air purification chambers, 21 injection pipes, 22 exhaust pipes, 3 air inlet pipes, 4 linear motors, 5 driving seats, 51 guide strips and 6 linkage shafts.

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 only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a dust removing mechanism for a blast furnace in a steel plant comprises a box body 1 and a gas purifying chamber 2, wherein the bottom end of the box body 1 is connected with a dust exhaust pipe 13 with a valve, the side wall of the box body 1 is welded with a gas inlet pipe 3, the gas purifying chamber 2 is installed on the top wall of the box body 1, the side wall of the gas purifying chamber 2 is connected with a gas exhaust pipe 22, a spray pipe 21 is arranged in the gas purifying chamber 2, one end of the spray pipe 21 is connected with the gas exhaust pipe 22, the other end of the spray pipe is provided with a pulse valve, the bottom end of the spray pipe 21 is welded with a plurality of groups of guide pipes, the bottom ends of the guide pipes are inserted into a filter bag 11, the filter bag 11 connected with the spray pipe 21 is installed in the box body 1, one side of the inner wall of the box body 1 is welded with a guide plate 12, and the guide plate 12 is positioned on one side of the filter bag 11;

further, all install linear electric motor 4 on the both sides diapire of box 1, and the both sides diapire of box 1 all slides between its lateral wall and is provided with drive seat 5, spout 15 has all been seted up at its both sides outer wall to the diapire of box 1, drive seat 5 is "U" type structure, and the both sides of drive seat 5 all weld conducting bar 51, conducting bar 51 slides and arranges in spout 15, and the both sides diapire of box 1 rotates between its inner wall and is provided with bottom 14 (inhale fixedly through the magnetic force board between the end wall of bottom 14 and the outer wall of dust exhaust pipe 13 mutually), the connecting seat has been welded to the outer wall of bottom 14, it is fixed through the key-type connection between the tip of universal driving shaft 6 and the drive seat 5 that is located its both ends and the connecting seat, and the lateral wall of drive seat 5 is fixed with linear electric motor 4's output shaft end connection.

In this embodiment, the air inlet pipe 3 is fixedly connected to the air outlet end of the blast furnace, when filtering and dedusting, tail gas enters from the air inlet pipe 3, is induced by the guide plate 12 and flows through the bottom of the box body 1, the pulse valve is started, the tail gas is extracted from the filter bag 11 under the action of the pulse valve and flows along the injection pipe 21, finally, clean tail gas is discharged from the exhaust pipe 22, dust in the tail gas is blocked when passing through the filter bag 11 and gradually accumulated in the bottom area of the box body 1, the valve on the dust exhaust pipe 13 is periodically opened to discharge the dust, and the valve is closed after the dust is discharged.

Meanwhile, when the upper valve of the dust exhaust pipe 13 is opened, the linear motor 4 is manually started to drive the driving seat 5 to slide along the chute 15 to one side far away from the dust exhaust pipe 13, the driving seat 5 synchronously drives the bottom cover 14 to be opened outwards along with the movement of the driving seat 5, when the driving seat 5 slides to one end of the chute 15, the linear motor 4 is closed, the dust in the box body 1 is further processed from the opened bottom cover 4, after all processing is finished, the linear motor 4 is manually started again to drive the driving seat 5 to slide to the other side, so that the bottom cover 14 is reset through the chute 6, and then the motor is closed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A dust removal mechanism for a blast furnace in a steel plant comprises a box body (1) and a gas purification chamber (2), and is characterized in that the bottom end of the box body (1) is connected with a dust exhaust pipe (13) with a valve, the side wall of the box body (1) is welded with a gas inlet pipe (3), the gas purification chamber (2) is installed on the top wall of the box body (1), the side wall of the gas purification chamber (2) is connected with a gas exhaust pipe (22), a blowing pipe (21) is arranged in the gas purification chamber (2), one end of the blowing pipe (21) is connected with the gas exhaust pipe (22), the other end of the blowing pipe is provided with a pulse valve, and a filter bag (11) connected with the blowing pipe (21) is installed in the box body (1);

linear motors (4) are mounted on the bottom walls of the two sides of the box body (1), driving seats (5) are arranged on the bottom walls of the two sides of the box body (1) in a sliding mode between the side walls of the box body, bottom covers (14) are arranged on the bottom walls of the two sides of the box body (1) in a rotating mode between the inner walls of the box body and the bottom covers, linkage shafts (6) are connected between the outer walls of the bottom covers (14) and the driving seats (5), and the side walls of the driving seats (5) are fixedly connected with the end portions of output shafts of the linear motors (4).

2. The dust removing mechanism for the blast furnace of the steel mill according to claim 1, wherein a guide plate (12) is welded to one side of the inner wall of the box body (1), and the guide plate (12) is positioned at one side of the filter bag (11).

3. The dust removing mechanism for the blast furnace of the steel mill according to claim 1, wherein a plurality of groups of guide pipes are welded to the bottom end of the injection pipe (21), and the bottom ends of the guide pipes are inserted into the filter bag (11).

4. The dust removing mechanism for the blast furnace of the steel mill according to claim 1, wherein the bottom wall of the box body (1) is provided with sliding grooves (15) on the outer walls of both sides thereof.

5. The dust removing mechanism for the blast furnace of the steel mill according to claim 1, wherein the driving seat (5) is of a U-shaped structure, guide bars (51) are welded on two sides of the driving seat (5), and the guide bars (51) are slidably arranged in the sliding grooves (15).

6. The dust removing mechanism for the blast furnace of the steel mill according to claim 1, wherein the outer wall of the bottom cover (14) is welded with a connecting seat, and the linkage shaft (6) and the end parts of the driving seats (5) at the two ends of the linkage shaft are fixedly connected with the connecting seat through keys.