CN211546592U

CN211546592U - Automatic air opening poking device for blast furnace

Info

Publication number: CN211546592U
Application number: CN201922094877.2U
Authority: CN
Inventors: 夏万顺; 程子波; 李岩; 王宗德; 蒋少琪
Original assignee: Handan Iron and Steel Group Co Ltd; Hangang Group Hanbao Iron and Steel Co Ltd
Current assignee: Handan Iron and Steel Group Co Ltd; Hangang Group Hanbao Iron and Steel Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-22
Anticipated expiration: 2029-11-28

Abstract

The utility model relates to an automatic air opening poking device for a blast furnace, which belongs to the technical field of blast furnace production operation in the metallurgical industry. The technical scheme is as follows: the drill rod (1) is of a hollow structure, the front end of the drill rod (1) is conical, the rear end of the drill rod (1) is provided with a hose connector (13), a cooling hose (12) is connected with the hose connector (13), and the rear end of the drill rod (1) is fixed on the heavy hammer (2); the heavy hammer (2) is connected on a heavy hammer guide rail (3) in a sliding way, the heavy hammer guide rail (3) is fixed on a guide rail bracket (4), and the guide rail bracket (4) is fixed on the mobile trolley (5); two ends of the heavy hammer guide rail (3) are respectively provided with a front chain steering gear (10) and a rear chain steering gear (11), the pneumatic motor (8) is fixed in the middle of the heavy hammer guide rail (3), and the driving gear, the front chain steering gear (10) and the rear chain steering gear (11) are in transmission connection through a chain (9). The utility model has the advantages that: the automatic air inlet poking operation can be realized.

Description

Automatic air opening poking device for blast furnace

Technical Field

The utility model relates to an automatic air opening poking device for a blast furnace, which belongs to the technical field of blast furnace production operation in the metallurgical industry.

Background

After the large-scale blast furnace is overhauled due to reasons, the diameter of a furnace cylinder is large during air supply, the air is not easy to blow through the center at the initial stage of air supply, and the recovery of the furnace condition is not facilitated.

Traditional poking the wind gap operation is poked the wind gap with the slide hammer, and the slide hammer is the drill rod that the rear end has a weight, and the weight cover is on the drill rod, and the rope on the pulling weight can make it make a round trip to slide on the drill rod, welds the baffle around the weight, utilizes the slide hammer constantly to strike preceding baffle, makes the drill rod advance to strike the wind gap and block up mud and poke the wind gap. During operation, two pipe workers open the air inlet inserting plate, at least six stokehole workers lift the sliding hammer to plug the sliding hammer into the air inlet, the two workers prop against the sliding hammer at the rear end to prevent the sliding hammer from being blown out by high-pressure air, the two workers rapidly pull the sliding hammer forwards to strike the front end baffle, and the other two workers pull the sliding hammer backwards to strike the air inlet blocking mud back and forth until the air inlet is poked open. When the tuyere is poked, high-pressure hot air in the furnace carries with coal gas to be sprayed out from the inserting plate of the tuyere, so that accidents such as burn, coal gas poisoning and the like are easy to occur; meanwhile, the sound is harsh, workers can work only by wearing special earplugs, the communication among the workers is difficult, the matching is poor, and the efficiency is extremely low; in addition, high-pressure hot air can blow out a large amount of air port blocking mud to be hit on the body and the face of a worker, so that the worker is easily injured; therefore, pressure of workers is high when the air inlet is poked, the air inlet is quite nervous during operation, when the cooperation is not good, one air inlet can be poked for many times, the steel chisel is heated to become red, the deformation is difficult to pull out the air inlet, even, serious accidents such as personal injury and medium coal gas can occur, in addition, under the condition of high tension, four workers in charge of pulling the sliding hammer need to rapidly pull the heavy hammer back and forth, the labor intensity is quite high, when the air inlet is blocked more, the blast furnace has to arrange a team to specially poke the air inlet in an overtime mode.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic wind gap device of disclosing of blast furnace can realize disclosing the wind gap operation automatically, solves the problem that exists among the background art.

The technical scheme of the utility model is that:

an automatic tuyere poking device of a blast furnace comprises a steel chisel, a heavy hammer guide rail, a guide rail bracket, a movable trolley, a pneumatic motor, a chain front steering gear, a chain rear steering gear, a steel chisel cooling hose and a hose connector, wherein the steel chisel is of a hollow structure, the front end of the steel chisel is conical, the rear end of the steel chisel is provided with the hose connector, the cooling hose is connected with the hose connector, and the rear end of the steel chisel is fixed on the heavy hammer; the heavy hammer is connected to a heavy hammer guide rail in a sliding manner, the heavy hammer guide rail is horizontally fixed on a guide rail support, and the guide rail support is fixed on the movable trolley; the two ends of the heavy hammer guide rail are respectively provided with a front chain steering gear and a rear chain steering gear, the pneumatic motor is fixed in the middle of the heavy hammer guide rail, the output shaft of the pneumatic motor is provided with a driving gear, and the driving gear, the front chain steering gear and the rear chain steering gear are in transmission connection through chains.

The heavy hammer guide rail is in a structure with a semi-closed space formed by welding two channel steels, the heavy hammer is square, and the heavy hammer is arranged in the semi-closed space.

The contact surface of the heavy hammer and the channel steel is arc-shaped.

The middle of the heavy hammer is provided with a hole, and the steel chisel is fixed in the middle hole of the heavy hammer.

And the front end of the steel chisel is provided with an air outlet.

The movable trolley is provided with a trolley fixing rod arranged in the horizontal direction and a trolley fixing pin arranged in the vertical direction.

The trolley fixing pin is fixed in the middle of the moving trolley, and the trolley fixing rod is fixed at one end of the moving trolley.

Adopt the utility model discloses, when disclosing the wind gap operation, push away this device to wind gap department, the adjustment travelling car makes the drill rod on wind gap central line, and the dolly fixed pin that inserts lets in high-pressure gas in to the drill rod through pneumatic motor, starts pneumatic motor, and the direction of rotation through the control motor drives the drill rod weight along weight guide rail round trip movement to utilize inertia kinetic energy striking wind gap stifled mud, block up mud until disclosing the wind gap.

The utility model has the advantages that: the utility model discloses utilize pneumatic rotary motor to drive the drill rod weight and make a round trip to strike stifled mud in wind gap, realized the automatic wind gap operation of disclosing, the wind gap can be disclosed fast to power is sufficient, the phenomenon of ear-piercing, workman intensity of labour is big, inefficiency, hot-blast scald, injury and well coal gas when having stopped the manual work and disclosing the wind gap operation. In addition, the cooling of the steel chisel ventilating body avoids the phenomenon that the steel chisel is deformed by high wind temperature during operation and cannot exit from a tuyere blowpipe, ensures the safety and improves the operation efficiency.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of the installation of the present invention;

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

in the figure: the device comprises a steel chisel 1, a heavy hammer 2, a heavy hammer guide rail 3, a guide rail support 4, a moving trolley 5, a trolley fixing rod 6, a trolley fixing pin 7, a pneumatic motor 8, a chain 9, a front chain steering gear 10, a rear chain steering gear 11, a steel chisel cooling hose 12, a hose connector 13, a hose fixing buckle 14, a heavy hammer guide rail fixing mechanism 15, a guide rail fixing pin plate 16, a front chain link buckle 17, a rear chain link buckle 18, a furnace shell tuyere small sleeve jacking rod base 19 and a blow pipe 20.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to the attached drawings 1-3, an automatic blast furnace tuyere poking device comprises a steel chisel 1, a heavy hammer 2, a heavy hammer guide rail 3, a guide rail support 4, a moving trolley 5, a pneumatic motor 8, a chain 9, a front chain steering gear 10, a rear chain steering gear 11, a steel chisel cooling hose 12 and a hose connector 13, wherein the steel chisel 1 is of a hollow structure, the front end of the steel chisel 1 is conical, the rear end of the steel chisel 1 is provided with the hose connector 13, the cooling hose 12 is connected with the hose connector 13), and the rear end of the steel chisel 1 is fixed on the heavy hammer 2; the heavy hammer 2 is connected on a heavy hammer guide rail 3 in a sliding way, the heavy hammer guide rail 3 is horizontally fixed on a guide rail support 4, and the guide rail support 4 is fixed on a movable trolley 5; two ends of the weight guide rail 3 are respectively provided with a front chain steering gear 10 and a rear chain steering gear 11, the pneumatic motor 8 is fixed in the middle of the weight guide rail 3, the output shaft of the pneumatic motor 8 is provided with a driving gear, and the driving gear, the front chain steering gear 10 and the rear chain steering gear 11 are in transmission connection through a chain 9.

In this embodiment, referring to fig. 1-3, the weight guide rail 3 is a guide rail with a semi-enclosed space welded by two channel steels, the weight 2 is square, the square weight 2 is placed in the guide rail and can slide back and forth, two sides of the lower part of the weight 2 are processed into arc shapes, so that friction force with a channel steel supporting surface can be reduced, and when the weight guide rail 3 is used, lubricating oil is coated on the weight guide rail to easily realize back and forth sliding; a hole is drilled in the center of the heavy hammer 2, and a steel chisel 1 is inserted and welded at the rear end of the steel chisel 1; the drill rod 1 is hollow, the front end of the drill rod is conical, the rear end of the drill rod is welded with a multi-pagoda-shaped connecting hose connector 13, a drill rod cooling hose 12 is connected, high-pressure gas is introduced, and a gas outlet is formed in the conical rear part of the drill rod 1; a pneumatic rotating motor 8 with a driving gear is arranged at the lower part of the middle of the heavy hammer guide rail 3, a chain front steering gear 10 and a chain rear steering gear 11 are respectively arranged at two ends of the heavy hammer guide rail 3, a chain link front lock catch 17 and a chain link rear lock catch 18 are respectively arranged at the front and the rear of the lower part of the heavy hammer 2, and a chain 9 is hung on the chain to form a system capable of moving back and forth; the middle of the upper part of the heavy hammer guide rail is provided with a hose fixing buckle 14 of the drill steel cooling hose 12, so that the drill steel cooling hose 12 is prevented from blocking the drill steel 1 to move back and forth during operation; welding a heavy hammer guide rail 3 on a movable trolley 5 provided with universal wheels, fixing the front end of the movable trolley 5 on a furnace shell tuyere small sleeve jacking rod base 19 through a trolley fixing rod 6, and arranging two fixing pins 7 in the middle of the movable trolley 5 to fix the movable trolley 5 on the ground; the front section of the weight guide rail 3 is provided with a fixing mechanism 15 which is fixed on an air port blow pipe 20 through a guide rail fixing pin plate 16.

Disclose the wind gap during operation, will the utility model discloses push away to wind gap department, adjustment travelling car 5 makes drill rod 1 on the wind gap central line, and all fixed pins have been inserted, let in high-pressure gas in to drill rod 1 through pneumatic motor 8, open wind gap blowpipe picture peg, start pneumatic motor 8, the direction of rotation through the control motor drives drill rod weight system round trip movement, utilize inertia kinetic energy striking wind gap stifled mud, stifled mud in the wind gap of poking out, control pneumatic motor 8 and withdraw wind gap blowpipe 20, insert the wind gap picture peg, accomplish the operation.

Claims

1. The utility model provides an automatic wind gap device of disclosing of blast furnace which characterized in that: the steel chisel device is characterized by comprising a steel chisel (1), a heavy chisel (2), a heavy chisel guide rail (3), a guide rail support (4), a movable trolley (5), a pneumatic motor (8), a chain (9), a front chain steering gear (10), a rear chain steering gear (11), a steel chisel cooling hose (12) and a hose connector (13), wherein the steel chisel (1) is of a hollow structure, the front end of the steel chisel (1) is conical, the rear end of the steel chisel (1) is provided with the hose connector (13), the cooling hose (12) is connected with the hose connector (13), and the rear end of the steel chisel (1) is fixed on the heavy chisel (2); the heavy hammer (2) is connected on a heavy hammer guide rail (3) in a sliding way, the heavy hammer guide rail (3) is horizontally fixed on a guide rail bracket (4), and the guide rail bracket (4) is fixed on a mobile trolley (5); two ends of the heavy hammer guide rail (3) are respectively provided with a front chain steering gear (10) and a rear chain steering gear (11), the pneumatic motor (8) is fixed in the middle of the heavy hammer guide rail (3), the output shaft of the pneumatic motor (8) is provided with a driving gear, and the driving gear, the front chain steering gear (10) and the rear chain steering gear (11) are in transmission connection through a chain (9).

2. The automatic blast furnace tuyere poking device of claim 1, wherein: the heavy hammer guide rail (3) is of a structure with a semi-closed space formed by welding two channel steels, the heavy hammer (2) is square, and the heavy hammer (2) is arranged in the semi-closed space.

3. The automatic blast furnace tuyere poking device of claim 2, wherein: the contact surface of the heavy hammer (2) and the channel steel is arc-shaped.

4. The automatic blast furnace tuyere poking device of claim 1 or 2, which is characterized in that: the middle of the heavy hammer (2) is provided with a hole, and the steel chisel (1) is fixed in the middle hole of the heavy hammer (2).

5. The automatic blast furnace tuyere poking device of claim 1, wherein: the front end of the steel chisel (1) is provided with an air outlet.

6. The automatic blast furnace tuyere poking device of claim 1, wherein: and a trolley fixing rod (6) arranged in the horizontal direction and a trolley fixing pin (7) arranged in the vertical direction are arranged on the movable trolley (5).

7. The automatic blast furnace tuyere poking device of claim 6, wherein: the trolley fixing pin (7) is fixed in the middle of the movable trolley (5), and the trolley fixing rod (6) is fixed at one end of the movable trolley (5).