CN219059016U

CN219059016U - Environment-friendly metallurgical furnace tap hole dust fall dust collection device

Info

Publication number: CN219059016U
Application number: CN202222560081.3U
Authority: CN
Inventors: 包彤; 梁友乾; 赵中源; 王卓; 卢昌祥; 张文强; 陈文川
Original assignee: Northwest Research Institute of Mining and Metallurgy
Current assignee: Northwest Research Institute of Mining and Metallurgy
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-23
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a dust-settling dust-collecting device for a tap hole of an environment-friendly metallurgical furnace, which belongs to the field of metallurgical furnace ironmaking environment protection and comprises a base, wherein a rotating body is arranged at the top end of the base, a limit groove is formed in the top end of the base, a top bead and a spring are arranged in the limit groove, a machine box is arranged at the top end of the rotating body, a water tank, a water pump and an air compressor are arranged at the top end of the machine box, a mechanical arm, a feeding track, a feeding mechanism, a rotating motor and a speed reducing mechanism are arranged at one side of the machine box, a dust-collecting device and a dust-collecting box are arranged at the other end of the mechanical arm, a high-pressure water pipe is arranged at the bottom end of the mechanical arm, a limit top core and an inductor are fixedly connected at the other end of the high-pressure water pipe, a switch is connected to the output end of the inductor through a wire, and a drill rod is arranged at one end of the feeding mechanism.

Description

Environment-friendly metallurgical furnace tap hole dust fall dust collection device

Technical Field

The utility model relates to the field of metallurgical furnace ironmaking environment protection, in particular to a dust settling and collecting device for an iron outlet of an environment-friendly metallurgical furnace.

Background

A modern iron-making method using a blast furnace as main equipment for blast furnace iron-making. The production method is that ore raw materials, raw materials such as coke, flux and the like and fuel are added from the furnace top, and the melted iron is smelted after a series of physical and chemical changes such as heating, reduction, melting, slagging, carburizing, desulfurization and the like are carried out on the furnace burden; non-reducing impurities in the iron ore are combined with fluxes such as limestone to form slag, and the slag is discharged from a slag hole. The generated coal gas is led out from the furnace top and is used as fuel of a hot blast stove, a heating furnace, a coke oven, a boiler and the like after dust removal; the method has the advantages of good technical and economic indexes of blast furnace ironmaking, simple process, high yield, high labor productivity and low energy consumption, and the pig iron produced by the blast furnace accounts for more than 95 percent of the total world yield.

Based on the above, the present inventors found that: during tapping of the device, the average ton iron generates about 2.5 kg of smoke dust, which has serious environmental pollution and generates a large amount of yellow smoke, namely various toxic and harmful dust pollution, which floats into the air and is difficult to degrade, and simultaneously, the tap hole smoke gas is sprayed from a tap hole injection well to rapidly rise and spread in the whole tapping field under the action of hot pressing and furnace pressure, so that the pollution to the surrounding air is extremely polluted by long-term repeated discharge, and the body injury is also caused to operators and nearby residents.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide the dust-settling and dust-collecting device for the tap hole of the environment-friendly metallurgical furnace, which can realize the dust-collecting mode of regional trapping and centralized treatment and effectively reduce the dust diffusion and the environmental pollution.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides an environment-friendly metallurgical furnace tap hole dust fall dust arrester installation, includes the base, the top of base is provided with the rotator, spacing recess has been seted up on the top of base, the inside of spacing recess is provided with top pearl and spring, the top of rotator is provided with the quick-witted case, the top of machine case is provided with water tank, water pump and air compressor machine, one side of machine case is provided with arm, feed track, feed mechanism, rotating electrical machines and reducing mechanism, just the other end of arm is provided with dust extraction and dust collection box, the bottom of arm is provided with high-pressure water pipe, the other end fixedly connected with spacing top core and the inductor of high-pressure water pipe, the output of inductor is connected with the switch through the wire, feed mechanism's one end sets up the drilling rod, feed track's bottom is provided with dust fall water tray and support, the one end fixedly connected with drill bit of drilling rod, the through-hole has been seted up to the inside of drilling rod, the outer wall of dust fall water tray evenly is provided with the shower nozzle.

Further, the bottom end of the rotating body is located in the limiting groove, the top bead on the base and the spring are fixedly connected with each other, and one end of the spring is fixedly connected with the inner wall of the limiting groove.

Further, the output end of the rotating motor is connected with the speed reducing mechanism through a coupler, and the output end of the speed reducing mechanism is connected with the drill rod through a linkage shaft.

Further, one end of the mechanical arm is fixedly connected with the case, and one end of the high-pressure water pipe is fixedly connected with the water tank and the air compressor.

Further, the bottom of the dust collection box is fixedly connected with the top of the mechanical arm, and the driving machine of the dust collection device is fixedly arranged at the top of the dust collection box.

Further, the positions of the limiting top core and the inductor are symmetrical, and the switch is positioned on the outer side of the high-pressure water pipe.

Further, the two ends of the drill rod respectively penetrate through the support and the dust fall water tray, and the through holes are communicated with the inside of the drill bit.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the dust collection device and the dust collection box are arranged, the negative pressure region is formed between the iron notch and the dust collection cover by utilizing the air suction of the dust collection cover in the dust collection device, the flue gas rate sprayed out by the iron notch is attenuated rapidly in the region, the air flow moving rail is connected with the negative pressure pipe network to change and enter the dust collection cover, the air flow moving rail is purified and discharged through the pipe network, dust in the iron notch is prevented from being emitted outwards, the dust concentration in a cast house is reduced, and part of dust outside the region of the dust collection cover can also enter the cover and be purified under the induction action of air flow.

(2) According to the scheme, through the arrangement of the water tank, the air compressor, the through hole and the dust fall water tray, air is pumped to the drill bit through the through hole by the air compressor, a high-pressure air protection area is formed at the front end of the drill bit, so that high-temperature molten iron cannot approach the drill bit and the drill rod, a drilling mechanism is cooled timely and effectively protected, slag such as molten iron, stemming and sludge is prevented from reversely flowing back from the head of the drill rod, each accessory of the iron opening system is scrapped in advance, and the problems that the accessory consumption is large, the drill rod is difficult to dismount due to high-temperature deformation and the like after scrapping are solved.

Drawings

FIG. 1 is a schematic elevational cross-sectional view of the structure of the present utility model;

FIG. 2 is a schematic elevational view of the structure of the present utility model;

FIG. 3 is a schematic side view of a dust fall pan according to the present utility model;

fig. 4 is a schematic side view of a spray head structure of the present utility model.

The reference numerals in the figures illustrate:

1. a base; 2. a rotating body; 3. a limit groove; 4. top bead; 5. a spring; 6. a chassis; 7. a water tank; 8. a water pump; 9. an air compressor; 10. a mechanical arm; 11. a feed rail; 12. a feeding mechanism; 13. a rotating electric machine; 14. a speed reducing mechanism; 15. a high pressure water pipe; 16. a dust collection device; 17. a dust collection box; 18. an inductor; 19. a top core; 20. a drill bit; 21. a through hole; 22. a spray head; 23. a dust fall water tray; 24. a switch; 25. a bracket; 26. and (3) drilling rod.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

Examples:

referring to fig. 1-4, an environment-friendly metallurgical furnace tap hole dust collection device comprises a base 1, a rotating body 2 is arranged at the top end of the base 1, a limit groove 3 is formed in the top end of the base 1, a top ball 4 and a spring 5 are arranged in the limit groove 3, a machine case 6 is arranged at the top end of the rotating body 2, a water tank 7, a water pump 8 and an air compressor 9 are arranged at the top end of the machine case 6, a mechanical arm 10, a feeding track 11, a feeding mechanism 12, a rotating motor 13 and a speed reducing mechanism 14 are arranged on one side of the machine case 6, a dust collection device 16 and a dust collection box 17 are arranged at the other end of the mechanical arm 10, a high-pressure water pipe 15 is arranged at the bottom end of the mechanical arm 10, a limit top core 19 and an inductor 18 are fixedly connected at the other end of the high-pressure water pipe 15, a switch 24 is connected at the output end of the inductor 18 through a wire, a drill rod 26 is arranged at one end of the feeding mechanism 12, a dust fall water tray 23 and a bracket 25 are arranged at the bottom end of the feeding track 11, a drill bit 20 is fixedly connected at one end of the drill bit 26, a through hole 21 is formed in the interior of the drill rod 26, a spray head 22 is uniformly arranged on the outer wall of the dust fall water tray 23, the device can rotate on the base 1-360 DEG and can be rotated at the left-60 DEG on the base 60 DEG while the environment can be effectively cleaned.

Referring to fig. 1, the bottom end of a rotating body 2 is located in a limit groove 3, a top bead 4 and a spring 5 on a base 1 are fixedly connected with each other, and one end of the spring 5 is fixedly connected with the inner wall of the limit groove 3; the output end of the rotating motor 13 is connected with the speed reducing mechanism 14 through a coupler, and the output end of the speed reducing mechanism 14 is connected with the drill rod 26 through a linkage shaft.

Referring to fig. 1 and 2, one end of a mechanical arm 10 is fixedly connected with a case 6, and one end of a high-pressure water pipe 15 is fixedly connected with a water tank 7 and an air compressor 9; the bottom of the dust box 17 is fixedly connected with the top of the mechanical arm 10, and a driving machine of the dust collection device 16 is fixedly arranged at the top of the dust box 17.

Referring to fig. 1 and 2, the positions of the limiting top core 19 and the inductor 18 are symmetrical, and the switch 24 is positioned on the outer side of the high-pressure water pipe 15; the both ends of drilling rod 26 run through support 25 and dust fall dish 23 respectively, and through-hole 21 communicates with the inside of drill bit 20 each other, and it is open the iron notch drill bit to lead to through the drill rod centre bore, forms a high pressure wind protection zone at the drill bit front end, makes high temperature molten iron unable to be close drill bit and drilling rod, in time cools off and effectively protected drilling mechanism.

When in use: firstly, the position of the rotating body 2 on the base 1 is adjusted and locked, the air compressor 9 and the water pump 8 are turned on, the top core 19 contacts the position of the iron notch and contacts the sensor 18, the sensor 18 turns on the switch 24 of the high-pressure water pipe 15, the feeding mechanism 12 on the mechanical arm 10 starts to move forward on the feeding track 11 to drive the drill rod 26 and the drill bit 20 to drill, high-pressure air generated by the air compressor 9 is directly led to the head area of the drill bit 20, high-pressure air in the iron notch opening process effectively blasts mud in the hole, secondary abrasion of alloy of the drill bit 20 is prevented, and the drill bit 20 and the inner wall of a pore canal are effectively protected. The water in the high-pressure water pipe 15 effectively surrounds dust generated in the surrounding area when the iron notch is opened by high-pressure water mist sprayed by a plurality of spray heads 22 uniformly distributed on the circumference of the dust fall plate 23, and the dust is collected and treated by the dust collection device 16 and the dust collection box 17.

The above is only a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides an environment-friendly metallurgical furnace tap hole dust fall dust arrester installation, includes base (1), its characterized in that: the utility model discloses a drill bit (21) of the drill bit, including base (1), top of base (1) is provided with rotator (2), limit groove (3) have been seted up on the top of base (1), the inside of limit groove (3) is provided with top pearl (4) and spring (5), the top of rotator (2) is provided with quick-witted case (6), the top of machine case (6) is provided with water tank (7), water pump (8) and air compressor machine (9), one side of machine case (6) is provided with arm (10), feeds track (11), feed mechanism (12), rotating electrical machines (13) and reduction gears (14), and the other end of arm (10) is provided with dust extraction (16) and dust collection box (17), the bottom of arm (10) is provided with high-pressure water pipe (15), the other end fixedly connected with spacing top core (19) and inductor (18) of high-pressure water pipe (15), the output of inductor (18) is connected with switch (24) through the wire, one end of feed mechanism (12) sets up (26), the bottom of feed track (11) is provided with dust pan (26) and drill bit (26) are offered inside (20), the outer wall of the dust fall water disc (23) is uniformly provided with spray heads (22).

2. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: the bottom end of the rotating body (2) is positioned in the limiting groove (3), the top bead (4) on the base (1) and the spring (5) are fixedly connected with each other, and one end of the spring (5) is fixedly connected with the inner wall of the limiting groove (3).

3. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: the output end of the rotating motor (13) is connected with the speed reducing mechanism (14) through a coupler, and the output end of the speed reducing mechanism (14) is connected with the drill rod (26) through a linkage shaft.

4. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: one end of the mechanical arm (10) is fixedly connected with the case (6), and one end of the high-pressure water pipe (15) is fixedly connected with the water tank (7) and the air compressor (9).

5. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: the bottom end of the dust collection box (17) is fixedly connected with the top end of the mechanical arm (10), and a driving machine of the dust collection device (16) is fixedly arranged at the top end of the dust collection box (17).

6. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: the positions of the limiting top core (19) and the inductor (18) are symmetrical, and the switch (24) is positioned on the outer side of the high-pressure water pipe (15).

7. The dust-settling and collecting device for the tap hole of the environment-friendly metallurgical furnace as claimed in claim 1, wherein: the two ends of the drill rod (26) respectively penetrate through the bracket (25) and the dust fall water tray (23), and the through holes (21) are communicated with the inside of the drill bit (20).